/* ========================================
   YÜNİ MÜHENDİSLİK - STYLE.CSS
   Premium Corporate Website Styles
   ======================================== */

/* ===== CSS CUSTOM PROPERTIES ===== */
:root {
    /* Brand Colors */
    --color-primary: #163A70;
    --color-primary-dark: #0E264A;
    --color-primary-light: #1E4D8E;
    --color-accent: #F57C00;
    --color-accent-dark: #E06800;
    --color-accent-light: #FF9B33;

    /* Neutrals */
    --color-white: #FFFFFF;
    --color-off-white: #F8FAFC;
    --color-gray-50: #F1F5F9;
    --color-gray-100: #E2E8F0;
    --color-gray-200: #CBD5E1;
    --color-gray-300: #94A3B8;
    --color-gray-400: #64748B;
    --color-gray-500: #475569;
    --color-gray-600: #334155;
    --color-gray-700: #1E293B;
    --color-text: #1E293B;
    --color-text-light: #475569;
    --color-text-muted: #64748B;

    /* Typography */
    --font-heading: 'Manrope', 'Inter', sans-serif;
    --font-body: 'Inter', 'Manrope', sans-serif;

    /* Spacing */
    --space-xs: 0.25rem;
    --space-sm: 0.5rem;
    --space-md: 1rem;
    --space-lg: 1.5rem;
    --space-xl: 2rem;
    --space-2xl: 3rem;
    --space-3xl: 4rem;
    --space-4xl: 6rem;

    /* Layout */
    --container-max: 1240px;
    --header-height: 80px;

    /* Border Radius */
    --radius-sm: 6px;
    --radius-md: 10px;
    --radius-lg: 16px;
    --radius-xl: 24px;

    /* Shadows */
    --shadow-sm: 0 1px 3px rgba(22, 58, 112, 0.06);
    --shadow-md: 0 4px 12px rgba(22, 58, 112, 0.08);
    --shadow-lg: 0 8px 30px rgba(22, 58, 112, 0.1);
    --shadow-xl: 0 16px 48px rgba(22, 58, 112, 0.12);
    --shadow-card: 0 2px 16px rgba(22, 58, 112, 0.07);
    --shadow-card-hover: 0 8px 32px rgba(22, 58, 112, 0.14);

    /* Transitions */
    --transition-fast: 0.2s ease;
    --transition-base: 0.3s ease;
    --transition-slow: 0.5s ease;
    --transition-slider: 0.8s cubic-bezier(0.4, 0, 0.2, 1);
}

/* ===== RESET & BASE ===== */
*,
*::before,
*::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
    scroll-padding-top: var(--header-height);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    font-family: var(--font-body);
    font-size: 16px;
    line-height: 1.7;
    color: var(--color-text);
    background-color: var(--color-white);
    overflow-x: hidden;
}

img {
    max-width: 100%;
    height: auto;
    display: block;
}

a {
    text-decoration: none;
    color: inherit;
    transition: color var(--transition-fast);
}

ul,
ol {
    list-style: none;
}

button {
    border: none;
    background: none;
    cursor: pointer;
    font-family: inherit;
}

/* ===== UTILITY CLASSES ===== */
.container {
    width: 100%;
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 var(--space-xl);
}

.section {
    padding: var(--space-4xl) 0;
}

/* Section Header */
.section__header {
    text-align: center;
    margin-bottom: var(--space-3xl);
}

.section__label {
    display: inline-block;
    font-family: var(--font-heading);
    font-size: 0.8125rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 3px;
    color: var(--color-accent);
    margin-bottom: var(--space-sm);
}

.section__label--light {
    color: var(--color-accent-light);
}

.section__title {
    font-family: var(--font-heading);
    font-size: 2.5rem;
    font-weight: 800;
    color: var(--color-primary);
    line-height: 1.2;
    margin-bottom: var(--space-md);
}

.section__divider {
    width: 60px;
    height: 3px;
    background: linear-gradient(90deg, var(--color-accent), var(--color-primary));
    margin: var(--space-md) auto;
    border-radius: 2px;
}

.section__subtitle {
    font-size: 1.0625rem;
    color: var(--color-text-light);
    max-width: 600px;
    margin: 0 auto;
    line-height: 1.7;
}

/* ===== BUTTONS ===== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-sm);
    padding: 0.875rem 2rem;
    font-family: var(--font-heading);
    font-size: 0.9375rem;
    font-weight: 600;
    border-radius: var(--radius-md);
    transition: all var(--transition-base);
    cursor: pointer;
    border: 2px solid transparent;
    letter-spacing: 0.3px;
    position: relative;
    overflow: hidden;
}

.btn--primary {
    background-color: var(--color-accent);
    color: var(--color-white);
    border-color: var(--color-accent);
}

.btn--primary:hover {
    background-color: var(--color-accent-dark);
    border-color: var(--color-accent-dark);
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(245, 124, 0, 0.3);
}

.btn--outline {
    background-color: transparent;
    color: var(--color-white);
    border-color: rgba(255, 255, 255, 0.5);
}

.btn--outline:hover {
    background-color: var(--color-white);
    color: var(--color-primary);
    border-color: var(--color-white);
    transform: translateY(-2px);
}

.btn--white {
    background-color: var(--color-white);
    color: var(--color-primary);
    border-color: var(--color-white);
}

.btn--white:hover {
    background-color: transparent;
    color: var(--color-white);
    border-color: var(--color-white);
    transform: translateY(-2px);
}

.btn--outline-white {
    background-color: transparent;
    color: var(--color-white);
    border-color: rgba(255, 255, 255, 0.4);
}

.btn--outline-white:hover {
    background-color: var(--color-white);
    color: var(--color-primary);
    border-color: var(--color-white);
    transform: translateY(-2px);
}

/* ========================================
   HEADER
======================================== */
.header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: var(--header-height);
    background-color: var(--color-white);
    z-index: 1000;
    transition: all var(--transition-base);
    border-bottom: 1px solid transparent;
}

.header.scrolled {
    box-shadow: var(--shadow-md);
    border-bottom-color: var(--color-gray-100);
}

.header__container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 100%;
    max-width: 1380px;
    margin: 0 auto;
    padding: 0 var(--space-xl);
    gap: clamp(1rem, 2vw, 2rem);
}

/* Logo */
.header__logo {
    display: flex;
    align-items: center;
    flex-shrink: 0;
}

.header__logo-img {
    height: 64px;
    width: auto;
    transition: all var(--transition-base);
}

.header__logo:hover .header__logo-img {
    transform: scale(1.03);
}

/* Navigation */
.header__nav {
    display: flex;
    align-items: center;
    flex: 1;
    justify-content: center;
    margin: 0 clamp(0.75rem, 1.5vw, 1.75rem);
    min-width: 0;
}

.header__nav-list {
    display: flex;
    align-items: center;
    gap: 0.2rem;
}

.header__nav-link {
    font-family: var(--font-heading);
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--color-gray-600);
    padding: 0.45rem 0.75rem;
    border-radius: var(--radius-sm);
    transition: all var(--transition-fast);
    position: relative;
    white-space: nowrap;
}

.header__nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 0;
    height: 2px;
    background-color: var(--color-accent);
    transition: width var(--transition-base);
    border-radius: 1px;
}

.header__nav-link:hover,
.header__nav-link.active {
    color: var(--color-primary);
}

.header__nav-link:hover::after,
.header__nav-link.active::after {
    width: 60%;
}

/* Header Right */
.header__right {
    display: flex;
    align-items: center;
    gap: clamp(0.75rem, 1.5vw, 1.25rem);
}

.header__contact-info {
    display: flex;
    align-items: center;
    gap: clamp(0.75rem, 1.4vw, 1rem);
}

.header__contact-link {
    display: flex;
    align-items: center;
    gap: 6px;
    font-size: 0.8125rem;
    font-weight: 500;
    color: var(--color-gray-500);
    transition: color var(--transition-fast);
    white-space: nowrap;
}

.header__contact-link:hover {
    color: var(--color-accent);
}

.header__contact-link svg {
    color: var(--color-accent);
    flex-shrink: 0;
}

/* Language Switcher */
.header__lang {
    display: flex;
    align-items: center;
    gap: 4px;
    background-color: var(--color-gray-50);
    padding: 4px 8px;
    border-radius: var(--radius-sm);
}

.header__lang-btn {
    font-family: var(--font-heading);
    font-size: 0.75rem;
    font-weight: 700;
    color: var(--color-gray-400);
    padding: 4px 8px;
    border-radius: 4px;
    transition: all var(--transition-fast);
    letter-spacing: 0.5px;
}

.header__lang-btn.active {
    background-color: var(--color-primary);
    color: var(--color-white);
}

.header__lang-btn:hover:not(.active) {
    color: var(--color-primary);
}

.header__lang-divider {
    color: var(--color-gray-300);
    font-size: 0.75rem;
}

/* Hamburger */
.header__hamburger {
    display: none;
    flex-direction: column;
    justify-content: center;
    gap: 5px;
    width: 32px;
    height: 32px;
    padding: 4px;
    z-index: 1010;
}

.header__hamburger-line {
    display: block;
    width: 100%;
    height: 2px;
    background-color: var(--color-primary);
    border-radius: 2px;
    transition: all var(--transition-base);
    transform-origin: center;
}

.header__hamburger.active .header__hamburger-line:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
}

.header__hamburger.active .header__hamburger-line:nth-child(2) {
    opacity: 0;
}

.header__hamburger.active .header__hamburger-line:nth-child(3) {
    transform: rotate(-45deg) translate(5px, -5px);
}

/* ========================================
   MOBILE MENU
======================================== */
.mobile-menu {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 999;
    pointer-events: none;
}

.mobile-menu.active {
    pointer-events: all;
}

.mobile-menu__overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(14, 38, 74, 0.5);
    opacity: 0;
    transition: opacity var(--transition-base);
    backdrop-filter: blur(4px);
}

.mobile-menu.active .mobile-menu__overlay {
    opacity: 1;
}

.mobile-menu__panel {
    position: absolute;
    top: 0;
    right: 0;
    width: 320px;
    max-width: 85vw;
    height: 100%;
    background-color: var(--color-white);
    transform: translateX(100%);
    transition: transform var(--transition-slow);
    display: flex;
    flex-direction: column;
    padding: var(--space-xl);
    overflow-y: auto;
    box-shadow: -8px 0 30px rgba(0, 0, 0, 0.15);
}

.mobile-menu.active .mobile-menu__panel {
    transform: translateX(0);
}

.mobile-menu__header {
    display: flex;
    align-items: center;
    justify-content: flex-start;
    margin-bottom: var(--space-2xl);
    padding-bottom: var(--space-lg);
    border-bottom: 1px solid var(--color-gray-100);
}

.mobile-menu__logo {
    height: 40px;
    width: auto;
}

.mobile-menu__close {
    display: none;
    color: var(--color-gray-500);
    transition: color var(--transition-fast);
    padding: 4px;
}

.mobile-menu__close:hover {
    color: var(--color-primary);
}

.mobile-menu__nav {
    display: flex;
    flex-direction: column;
    gap: 4px;
    margin-bottom: var(--space-2xl);
}

.mobile-menu__link {
    font-family: var(--font-heading);
    font-size: 1.0625rem;
    font-weight: 600;
    color: var(--color-gray-600);
    padding: var(--space-md) var(--space-md);
    border-radius: var(--radius-sm);
    transition: all var(--transition-fast);
}

.mobile-menu__link:hover {
    background-color: var(--color-gray-50);
    color: var(--color-primary);
    padding-left: var(--space-lg);
}

.mobile-menu__contact {
    display: flex;
    flex-direction: column;
    gap: var(--space-md);
    margin-bottom: var(--space-xl);
    padding: var(--space-lg);
    background-color: var(--color-gray-50);
    border-radius: var(--radius-md);
}

.mobile-menu__contact-link {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--color-gray-600);
    transition: color var(--transition-fast);
}

.mobile-menu__contact-link svg {
    color: var(--color-accent);
    flex-shrink: 0;
}

.mobile-menu__contact-link:hover {
    color: var(--color-accent);
}

.mobile-menu__lang {
    display: flex;
    gap: var(--space-sm);
}

.mobile-menu__lang-btn {
    flex: 1;
    padding: var(--space-md);
    font-family: var(--font-heading);
    font-size: 0.875rem;
    font-weight: 600;
    border-radius: var(--radius-sm);
    border: 2px solid var(--color-gray-100);
    color: var(--color-gray-500);
    transition: all var(--transition-fast);
}

.mobile-menu__lang-btn.active {
    background-color: var(--color-primary);
    color: var(--color-white);
    border-color: var(--color-primary);
}

.mobile-menu__lang-btn:hover:not(.active) {
    border-color: var(--color-primary);
    color: var(--color-primary);
}

/* ========================================
   HERO SECTION
======================================== */
.hero {
    position: relative;
    height: calc(100vh - var(--header-height));
    min-height: 500px;
    margin-top: var(--header-height);
    overflow: hidden;
}

.hero__slider {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
}

.hero__slide {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    opacity: 0;
    transition: opacity var(--transition-slider);
}

.hero__slide.active {
    opacity: 1;
}

.hero__slide-img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: center;
}

.hero__slide-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg,
            rgba(14, 38, 74, 0.75) 0%,
            rgba(22, 58, 112, 0.55) 50%,
            rgba(22, 58, 112, 0.4) 100%);
}

/* Hero Content (directly on image, no card) */
.hero__card {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 90%;
    max-width: 740px;
    background: none;
    border: none;
    border-radius: 0;
    padding: var(--space-2xl);
    text-align: center;
    z-index: 10;
    animation: heroContentIn 1s ease-out 0.3s both;
}

@keyframes heroContentIn {
    from {
        opacity: 0;
        transform: translate(-50%, -42%);
    }

    to {
        opacity: 1;
        transform: translate(-50%, -50%);
    }
}

.hero__card-badge {
    display: inline-block;
    padding: 8px 24px;
    font-family: var(--font-heading);
    font-size: 0.8125rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 3px;
    color: var(--color-white);
    background: rgba(245, 124, 0, 0.85);
    border: none;
    border-radius: 50px;
    margin-bottom: var(--space-xl);
    text-shadow: 0 1px 2px rgba(0, 0, 0, 0.15);
}

.hero__card-title {
    font-family: var(--font-heading);
    font-size: 3.25rem;
    font-weight: 800;
    color: var(--color-white);
    line-height: 1.12;
    margin-bottom: var(--space-lg);
    letter-spacing: -0.5px;
    text-shadow: 0 2px 20px rgba(0, 0, 0, 0.35);
}

.hero__card-desc {
    font-size: 1.125rem;
    color: rgba(255, 255, 255, 0.92);
    line-height: 1.7;
    margin-bottom: var(--space-2xl);
    max-width: 560px;
    margin-left: auto;
    margin-right: auto;
    text-shadow: 0 1px 8px rgba(0, 0, 0, 0.25);
}

.hero__card-actions {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-md);
    flex-wrap: wrap;
}

/* Hero Dots */
.hero__dots {
    position: absolute;
    bottom: 2rem;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    gap: 10px;
    z-index: 10;
}

.hero__dot {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.3);
    border: 2px solid rgba(255, 255, 255, 0.5);
    transition: all var(--transition-base);
    cursor: pointer;
}

.hero__dot.active {
    background: var(--color-accent);
    border-color: var(--color-accent);
    transform: scale(1.2);
}

.hero__dot:hover:not(.active) {
    background: rgba(255, 255, 255, 0.5);
}

/* ========================================
   ABOUT SECTION
======================================== */
.about__grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-4xl);
    align-items: center;
}

.about__content .section__label {
    text-align: left;
}

.about__content .section__title {
    text-align: left;
}

.about__content .section__divider {
    margin-left: 0;
}

.about__text {
    font-size: 1.0625rem;
    color: var(--color-text-light);
    line-height: 1.8;
    margin-bottom: var(--space-md);
}

.about__text-sub {
    font-size: 0.9375rem;
    color: var(--color-text-muted);
    line-height: 1.7;
    margin-bottom: var(--space-xl);
}

/* About Image */
.about__image {
    position: relative;
}

.about__image img {
    width: 100%;
    height: 450px;
    object-fit: cover;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
}

.about__image-accent {
    position: absolute;
    bottom: -15px;
    right: -15px;
    width: 100%;
    height: 100%;
    border: 3px solid var(--color-accent);
    border-radius: var(--radius-lg);
    z-index: -1;
    opacity: 0.3;
}

.about__stats {
    position: absolute;
    bottom: -20px;
    left: 20px;
    display: flex;
    gap: var(--space-md);
}

.about__stat {
    background: var(--color-white);
    padding: var(--space-lg) var(--space-xl);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-lg);
    text-align: center;
    border-bottom: 3px solid var(--color-accent);
}

.about__stat-number {
    font-family: var(--font-heading);
    font-size: 2rem;
    font-weight: 800;
    color: var(--color-primary);
    line-height: 1;
}

.about__stat-plus {
    font-family: var(--font-heading);
    font-size: 1.5rem;
    font-weight: 800;
    color: var(--color-accent);
}

.about__stat-label {
    display: block;
    font-size: 0.8125rem;
    font-weight: 500;
    color: var(--color-text-muted);
    margin-top: 4px;
}

/* ========================================
   SERVICES SECTION
======================================== */
.services__grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-xl);
}

.service-card {
    background-color: var(--color-white);
    border-radius: 24px;
    padding: var(--space-2xl) var(--space-xl);
    text-align: center;
    border: 1px solid var(--color-gray-100);
    transition: all 0.5s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    overflow: hidden;
    box-shadow: 0 4px 20px rgba(22, 58, 112, 0.05);
}

.service-card:hover {
    transform: translateY(-12px);
    box-shadow: 0 25px 60px rgba(22, 58, 112, 0.12);
    border-color: rgba(245, 124, 0, 0.2);
}

.service-card__icon {
    width: 72px;
    height: 72px;
    margin: 0 auto var(--space-lg);
    color: var(--color-primary);
    background: linear-gradient(135deg, rgba(22, 58, 112, 0.06), rgba(245, 124, 0, 0.06));
    border-radius: 18px;
    padding: 16px;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

.service-card:hover .service-card__icon {
    color: var(--color-white);
    background: linear-gradient(135deg, var(--color-accent), var(--color-accent-dark));
    transform: scale(1.08) rotate(-3deg);
    box-shadow: 0 8px 24px rgba(245, 124, 0, 0.3);
}

.service-card__icon svg {
    width: 100%;
    height: 100%;
}

.service-card__title {
    font-family: var(--font-heading);
    font-size: 1.125rem;
    font-weight: 700;
    color: var(--color-primary);
    margin-bottom: var(--space-sm);
    transition: color var(--transition-base);
}

.service-card:hover .service-card__title {
    color: var(--color-accent-dark);
}

.service-card__desc {
    font-size: 0.9rem;
    color: var(--color-text-muted);
    line-height: 1.7;
}

.service-card__line {
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 4px;
    background: linear-gradient(90deg, var(--color-accent), var(--color-primary));
    transform: scaleX(0);
    transform-origin: left;
    transition: transform 0.5s cubic-bezier(0.4, 0, 0.2, 1);
}

.service-card:hover .service-card__line {
    transform: scaleX(1);
}

.services__actions {
    margin-top: var(--space-2xl);
    display: flex;
    justify-content: center;
}

.services__actions .btn {
    min-width: 280px;
}

/* ========================================
   PROJECTS SECTION
======================================== */
.projects {
    background-color: var(--color-off-white);
}

.projects__grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--space-xl);
}

.project-card {
    position: relative;
    min-height: 340px;
    border-radius: 24px;
    overflow: hidden;
    box-shadow: 0 18px 48px rgba(22, 58, 112, 0.12);
    background-color: var(--color-gray-100);
}

.project-card__img {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: center;
    transform: scale(1);
    transition: transform 0.6s cubic-bezier(0.4, 0, 0.2, 1);
}

.project-card__overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(180deg, rgba(14, 38, 74, 0.05) 0%, rgba(14, 38, 74, 0.28) 45%, rgba(14, 38, 74, 0.86) 100%);
    transition: background 0.4s ease;
}

.project-card__content {
    position: absolute;
    left: 0;
    right: 0;
    bottom: 0;
    padding: var(--space-xl);
    color: var(--color-white);
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    transform: translateY(18px);
    transition: transform 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

.project-card__tag {
    display: inline-flex;
    align-items: center;
    padding: 6px 12px;
    margin-bottom: var(--space-sm);
    border-radius: 999px;
    font-family: var(--font-heading);
    font-size: 0.75rem;
    font-weight: 700;
    letter-spacing: 1px;
    text-transform: uppercase;
    background: rgba(245, 124, 0, 0.92);
    color: var(--color-white);
}

.project-card__title {
    font-family: var(--font-heading);
    font-size: 1.2rem;
    font-weight: 800;
    line-height: 1.2;
    margin-bottom: 8px;
    min-height: calc(1.2em * 2);
    text-shadow: 0 2px 12px rgba(0, 0, 0, 0.35);
}

.project-card__desc {
    font-size: 0.9375rem;
    line-height: 1.7;
    color: rgba(255, 255, 255, 0.88);
    max-width: 280px;
    max-height: 0;
    overflow: hidden;
    margin-top: 0;
    opacity: 0;
    transform: translateY(8px);
    transition: opacity 0.35s ease, transform 0.35s ease, max-height 0.35s ease, margin-top 0.35s ease;
}

.project-card:hover .project-card__img {
    transform: scale(1.07);
}

.project-card:hover .project-card__overlay {
    background: linear-gradient(180deg, rgba(14, 38, 74, 0.05) 0%, rgba(14, 38, 74, 0.32) 38%, rgba(14, 38, 74, 0.94) 100%);
}

.project-card:hover .project-card__content {
    transform: translateY(0);
}

.project-card:hover .project-card__desc {
    max-height: 160px;
    margin-top: 2px;
    opacity: 1;
    transform: translateY(0);
}

/* ========================================
   REFERENCES / CAROUSEL SECTION
======================================== */
.references {
    background-color: var(--color-white);
}

.refs-carousel {
    position: relative;
    display: flex;
    align-items: center;
    gap: var(--space-md);
}

.refs-carousel__window {
    overflow: hidden;
    flex: 1;
    border-radius: var(--radius-lg);
}

.refs-carousel__track {
    display: flex;
    transition: transform 0.6s cubic-bezier(0.4, 0, 0.2, 1);
}

.refs-carousel__page {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-lg);
    min-width: 100%;
    padding: var(--space-sm);
}

.ref-card {
    background-color: var(--color-white);
    border: 1px solid var(--color-gray-100);
    border-radius: 18px;
    padding: var(--space-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    aspect-ratio: 16 / 10;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    box-shadow: 0 2px 12px rgba(22, 58, 112, 0.04);
    overflow: hidden;
}

.ref-card:hover {
    transform: translateY(-4px) scale(1.02);
    box-shadow: 0 12px 32px rgba(22, 58, 112, 0.1);
    border-color: rgba(245, 124, 0, 0.2);
}

.ref-card img {
    max-width: 80%;
    max-height: 80%;
    object-fit: contain;
    transition: all 0.4s ease;
}

.ref-card:hover img {
    transform: scale(1.05);
}

/* Carousel Arrows */
.refs-carousel__arrow {
    width: 48px;
    height: 48px;
    border-radius: 50%;
    background-color: var(--color-white);
    border: 2px solid var(--color-gray-100);
    color: var(--color-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all var(--transition-base);
    flex-shrink: 0;
    z-index: 5;
    box-shadow: 0 4px 16px rgba(22, 58, 112, 0.08);
}

.refs-carousel__arrow:hover {
    background-color: var(--color-accent);
    border-color: var(--color-accent);
    color: var(--color-white);
    transform: scale(1.08);
    box-shadow: 0 6px 20px rgba(245, 124, 0, 0.25);
}

/* Carousel Dots */
.refs-carousel__dots {
    display: flex;
    justify-content: center;
    gap: 10px;
    margin-top: var(--space-xl);
}

.refs-carousel__dot {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background-color: var(--color-gray-200);
    border: 2px solid transparent;
    cursor: pointer;
    transition: all var(--transition-base);
}

.refs-carousel__dot.active {
    background-color: var(--color-accent);
    border-color: var(--color-accent);
    transform: scale(1.25);
}

.refs-carousel__dot:hover:not(.active) {
    background-color: var(--color-gray-300);
    transform: scale(1.1);
}

/* ========================================
   REFERENCES PAGE - STATIC LOGO GRID
======================================== */
.references-page {
    background: linear-gradient(180deg, var(--color-off-white) 0%, var(--color-white) 100%);
}

.references-page__grid {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: var(--space-lg);
}

.references-page .ref-card {
    aspect-ratio: 5 / 3;
    padding: var(--space-xl);
}

/* ========================================
   WHY US SECTION
======================================== */
.why-us__grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: var(--space-2xl);
    max-width: 980px;
    margin: 0 auto;
}

.why-us__item {
    text-align: center;
    padding: var(--space-2xl) var(--space-xl);
    border-radius: 20px;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    border: 1px solid transparent;
}

.why-us__item::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 40px;
    height: 4px;
    background: linear-gradient(90deg, var(--color-accent), var(--color-accent-light));
    border-radius: 2px;
    opacity: 0;
    transition: all var(--transition-base);
}

.why-us__item:hover {
    background-color: var(--color-white);
    box-shadow: 0 20px 45px rgba(22, 58, 112, 0.08);
    border-color: rgba(245, 124, 0, 0.2);
    transform: translateY(-8px);
}

.why-us__item:hover::after {
    opacity: 1;
    width: 60px;
}

.why-us__icon {
    width: 62px;
    height: 62px;
    margin: 0 auto var(--space-lg);
    color: var(--color-accent);
    background: rgba(245, 124, 0, 0.08);
    border-radius: 16px;
    padding: 13px;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

.why-us__item:hover .why-us__icon {
    background: var(--color-accent);
    color: var(--color-white);
    transform: scale(1.05);
    box-shadow: 0 6px 18px rgba(245, 124, 0, 0.25);
}

.why-us__icon svg {
    width: 100%;
    height: 100%;
}

.why-us__title {
    font-family: var(--font-heading);
    font-size: 1.2rem;
    font-weight: 700;
    color: var(--color-primary);
    margin-bottom: 0.75rem;
}

.why-us__desc {
    font-size: 1rem;
    color: var(--color-text-muted);
    line-height: 1.75;
}

/* ========================================
   VALUES SECTION
======================================== */
.values__grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-xl);
}

.value-card {
    background-color: var(--color-white);
    border-radius: 24px;
    padding: var(--space-2xl) var(--space-xl);
    text-align: center;
    box-shadow: 0 10px 30px rgba(22, 58, 112, 0.04);
    border: 1px solid rgba(226, 232, 240, 0.7);
    transition: all 0.5s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    overflow: hidden;
}

.value-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 4px;
    background: linear-gradient(90deg, var(--color-accent), var(--color-primary));
    transform: scaleX(0);
    transition: transform 0.5s cubic-bezier(0.4, 0, 0.2, 1);
}

.value-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 20px 50px rgba(22, 58, 112, 0.1);
    border-color: rgba(22, 58, 112, 0.05);
}

.value-card:hover::before {
    transform: scaleX(1);
}

.value-card__icon {
    width: 56px;
    height: 56px;
    margin: 0 auto var(--space-lg);
    color: var(--color-primary);
    background: linear-gradient(135deg, rgba(22, 58, 112, 0.06), rgba(22, 58, 112, 0.02));
    border-radius: 16px;
    padding: 12px;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

.value-card:hover .value-card__icon {
    background: linear-gradient(135deg, var(--color-primary), var(--color-primary-light));
    color: var(--color-white);
    transform: scale(1.05);
    box-shadow: 0 6px 18px rgba(22, 58, 112, 0.2);
}

.value-card__icon svg {
    width: 100%;
    height: 100%;
}

.value-card__title {
    font-family: var(--font-heading);
    font-size: 1.0625rem;
    font-weight: 700;
    color: var(--color-primary);
    margin-bottom: var(--space-sm);
}

.value-card__desc {
    font-size: 0.875rem;
    color: var(--color-text-muted);
    line-height: 1.7;
}

/* ========================================
   FAQ SECTION
======================================== */
.faq__list {
    max-width: 800px;
    margin: 0 auto;
}

.faq__item {
    border: 1px solid var(--color-gray-100);
    border-radius: 16px;
    margin-bottom: var(--space-md);
    overflow: hidden;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    background-color: var(--color-white);
}

.faq__item:hover {
    border-color: var(--color-gray-200);
    box-shadow: 0 4px 16px rgba(22, 58, 112, 0.06);
}

.faq__item.active {
    border-color: rgba(245, 124, 0, 0.3);
    box-shadow: 0 8px 28px rgba(22, 58, 112, 0.08);
}

.faq__question {
    display: flex;
    align-items: center;
    justify-content: space-between;
    width: 100%;
    padding: var(--space-lg) var(--space-xl);
    font-family: var(--font-heading);
    font-size: 1rem;
    font-weight: 600;
    color: var(--color-text);
    text-align: left;
    gap: var(--space-md);
    transition: color var(--transition-fast);
}

.faq__item.active .faq__question {
    color: var(--color-primary);
}

.faq__icon {
    width: 20px;
    height: 20px;
    flex-shrink: 0;
    color: var(--color-gray-400);
    transition: all var(--transition-base);
}

.faq__item.active .faq__icon {
    transform: rotate(180deg);
    color: var(--color-accent);
}

.faq__answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.4s ease, padding 0.4s ease;
}

.faq__answer p {
    padding: 0 var(--space-xl) var(--space-lg);
    font-size: 0.9375rem;
    color: var(--color-text-light);
    line-height: 1.7;
}

.faq__item.active .faq__answer {
    max-height: 300px;
}

/* ========================================
   CTA SECTION
======================================== */
.cta {
    background: linear-gradient(135deg, var(--color-primary-dark) 0%, var(--color-primary) 50%, var(--color-primary-light) 100%);
    position: relative;
    overflow: hidden;
}

.cta::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -25%;
    width: 600px;
    height: 600px;
    border-radius: 50%;
    background: rgba(245, 124, 0, 0.06);
}

.cta::after {
    content: '';
    position: absolute;
    bottom: -30%;
    left: -10%;
    width: 400px;
    height: 400px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.03);
}

.cta__inner {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-4xl);
    align-items: center;
    position: relative;
    z-index: 1;
}

.cta__title {
    font-family: var(--font-heading);
    font-size: 2.25rem;
    font-weight: 800;
    color: var(--color-white);
    line-height: 1.2;
    margin-bottom: var(--space-md);
}

.cta__desc {
    font-size: 1.0625rem;
    color: rgba(255, 255, 255, 0.75);
    line-height: 1.7;
    margin-bottom: var(--space-2xl);
}

.cta__buttons {
    display: flex;
    gap: var(--space-md);
    flex-wrap: wrap;
}

.cta__info {
    display: flex;
    flex-direction: column;
    gap: var(--space-xl);
}

.cta__info-item {
    display: flex;
    align-items: flex-start;
    gap: var(--space-md);
    color: var(--color-white);
}

.cta__info-item svg {
    color: var(--color-accent);
    flex-shrink: 0;
    margin-top: 2px;
}

.cta__info-item strong {
    display: block;
    font-family: var(--font-heading);
    font-size: 0.8125rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 1.5px;
    color: var(--color-accent-light);
    margin-bottom: 4px;
}

.cta__info-item p {
    font-size: 0.9375rem;
    color: rgba(255, 255, 255, 0.85);
    line-height: 1.5;
}

/* ========================================
   FOOTER
======================================== */
.footer {
    background-color: var(--color-white);
    padding: var(--space-4xl) 0 0;
    color: var(--color-text);
    border-top: 1px solid var(--color-gray-100);
}

.footer__grid {
    display: grid;
    grid-template-columns: 1.5fr 1fr 1fr 1fr;
    gap: var(--space-3xl);
    padding-bottom: var(--space-3xl);
    border-bottom: 1px solid var(--color-gray-100);
}

.footer__logo {
    height: 95px;
    /* Increased from 72px */
    width: auto;
    margin-bottom: var(--space-lg);
    /* Filter removed to ensure v11.png is visible */
}

.footer__desc {
    font-size: 0.9rem;
    line-height: 1.7;
    margin-bottom: var(--space-xl);
    color: var(--color-text-light);
}

.footer__social {
    display: flex;
    gap: var(--space-sm);
}

.footer__social-link {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    border-radius: var(--radius-sm);
    border: 1px solid var(--color-gray-200);
    transition: all var(--transition-base);
    color: var(--color-primary);
    background-color: var(--color-gray-50);
}

.footer__social-link:hover {
    background-color: var(--color-accent);
    border-color: var(--color-accent);
    color: var(--color-white);
    transform: translateY(-2px);
}

.footer__social-link svg,
.footer__social-link .lucide {
    width: 18px;
    height: 18px;
}

.footer__col-title {
    font-family: var(--font-heading);
    font-size: 1rem;
    font-weight: 700;
    color: var(--color-primary);
    margin-bottom: var(--space-lg);
    position: relative;
    padding-bottom: var(--space-md);
}

.footer__col-title::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 30px;
    height: 2px;
    background-color: var(--color-accent);
    border-radius: 1px;
}

.footer__list {
    display: flex;
    flex-direction: column;
    gap: var(--space-md);
}

.footer__list-item {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    font-size: 0.9375rem;
    color: var(--color-text-light);
}

.footer__list-item svg,
.footer__list-item .lucide {
    color: var(--color-primary);
    flex-shrink: 0;
}

.footer__link {
    font-size: 0.9375rem;
    color: var(--color-text-light);
    display: block;
    margin-bottom: var(--space-sm);
    transition: all var(--transition-base);
}

.footer__link:hover {
    color: var(--color-primary);
    transform: translateX(5px);
}

.footer__bottom {
    padding: var(--space-xl) 0;
    text-align: center;
}

.footer__copyright {
    font-size: 0.875rem;
    color: var(--color-text-muted);
}

/* ========================================
   SCROLL REVEAL ANIMATIONS
======================================== */
.reveal {
    opacity: 0;
    transform: translateY(30px);
    transition: all 0.7s cubic-bezier(0.4, 0, 0.2, 1);
}

.reveal.visible {
    opacity: 1;
    transform: translateY(0);
}

/* Staggered children */
.reveal-stagger>* {
    opacity: 0;
    transform: translateY(20px);
    transition: all 0.5s cubic-bezier(0.4, 0, 0.2, 1);
}

.reveal-stagger.visible>*:nth-child(1) {
    transition-delay: 0.05s;
}

.reveal-stagger.visible>*:nth-child(2) {
    transition-delay: 0.1s;
}

.reveal-stagger.visible>*:nth-child(3) {
    transition-delay: 0.15s;
}

.reveal-stagger.visible>*:nth-child(4) {
    transition-delay: 0.2s;
}

.reveal-stagger.visible>*:nth-child(5) {
    transition-delay: 0.25s;
}

.reveal-stagger.visible>*:nth-child(6) {
    transition-delay: 0.3s;
}

.reveal-stagger.visible>* {
    opacity: 1;
    transform: translateY(0);
}

/* ========================================
   RESPONSIVE - HEADER MID RANGE (1340px to 1003px)
======================================== */
@media (max-width: 1340px) and (min-width: 1003px) {
    .header__container {
        padding: 0 0.875rem;
        gap: 1rem;
    }

    .header__logo-img {
        height: 58px;
    }

    .header__nav {
        margin: 0 0.75rem;
    }

    .header__nav-list {
        gap: 0.1rem;
    }

    .header__nav-link {
        font-size: 0.8rem;
        padding: 0.4rem 0.55rem;
    }

    .header__right {
        gap: 0.75rem;
    }

    .header__contact-info {
        gap: 0.75rem;
    }

    .header__contact-link {
        font-size: 0.75rem;
    }
}

@media (max-width: 1180px) and (min-width: 1003px) {
    .header__contact-link:last-child {
        display: none;
    }

    .header__nav-link {
        font-size: 0.8rem;
        padding: 0.42rem 0.56rem;
    }
}

/* ========================================
   RESPONSIVE - TABLET (max-width: 1024px)
======================================== */
@media (max-width: 1024px) {
    :root {
        --header-height: 72px;
    }

    .header__contact-info {
        display: none;
    }

    .header__nav {
        display: none;
    }

    .header__hamburger {
        display: flex;
    }

    .mobile-menu {
        display: block;
    }

    .hero__card-title {
        font-size: 2.75rem;
    }

    .about__grid {
        grid-template-columns: 1fr;
        gap: var(--space-2xl);
    }

    .references-page__grid {
        grid-template-columns: repeat(3, minmax(0, 1fr));
    }

    .about__image {
        order: -1;
    }

    .about__content .section__label,
    .about__content .section__title {
        text-align: center;
    }

    .about__content .section__divider {
        margin: var(--space-md) auto;
    }

    .about__text,
    .about__text-sub {
        text-align: center;
    }

    .about__content {
        display: flex;
        flex-direction: column;
        align-items: center;
    }

    .services__grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .projects__grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .why-us__grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .values__grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .cta__inner {
        grid-template-columns: 1fr;
        gap: var(--space-2xl);
        text-align: center;
    }

    .cta__buttons {
        justify-content: center;
    }

    .cta__info {
        display: grid;
        grid-template-columns: repeat(3, 1fr);
        gap: var(--space-lg);
    }

    .cta__info-item {
        flex-direction: column;
        align-items: center;
        text-align: center;
    }

    .footer__grid {
        grid-template-columns: 1fr 1fr;
        gap: var(--space-2xl);
    }

    .refs-carousel__page {
        grid-template-columns: repeat(3, 1fr);
    }

    .refs-carousel__arrow {
        width: 42px;
        height: 42px;
    }

    .references-page__grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
        gap: var(--space-md);
    }
}

/* ========================================
   RESPONSIVE - MOBILE (max-width: 768px)
======================================== */
@media (max-width: 768px) {
    .refs-carousel__page {
        grid-template-columns: 1fr !important;
        gap: var(--space-lg);
    }
    :root {
        --header-height: 80px;
        /* Increased to accommodate larger logo */
        --space-4xl: 4rem;
    }

    .header__logo-img {
        height: 54px;
    }

    .refs-carousel__page {
        grid-template-columns: 1fr;
        grid-template-rows: none;
        gap: var(--space-md);
    }

    .ref-card {
        aspect-ratio: 2 / 1;
    }

    .refs-carousel__arrow {
        width: 36px;
        height: 36px;
    }

    .refs-carousel__arrow svg {
        width: 18px;
        height: 18px;
    }

    .container {
        padding: 0 var(--space-lg);
    }

    .section__title {
        font-size: 2rem;
    }

    .hero {
        height: 100svh;
        min-height: 100svh;
        max-height: none;
        margin-top: 0;
    }

    @supports (height: 100dvh) {
        .hero {
            height: 100dvh;
            min-height: 100dvh;
        }
    }

    .hero__dots {
        bottom: calc(env(safe-area-inset-bottom, 0px) + 1rem);
    }

    .hero__card {
        padding: var(--space-2xl) var(--space-xl);
        width: 92%;
    }

    .hero__card-title {
        font-size: 2rem;
    }

    .hero__card-desc {
        font-size: 0.9375rem;
    }

    .hero__card-actions {
        flex-direction: column;
        gap: var(--space-sm);
    }

    .hero__card-actions .btn {
        width: 100%;
    }

    .about__image img {
        height: 320px;
    }

    .about__content {
        align-items: flex-start;
    }

    .about__content .section__label,
    .about__content .section__title,
    .about__text,
    .about__text-sub {
        text-align: left;
    }

    .about__content .section__divider {
        margin: var(--space-md) 0;
    }

    .about__stats {
        position: relative;
        bottom: auto;
        left: auto;
        display: grid;
        grid-template-columns: repeat(2, minmax(0, 1fr));
        width: 100%;
        justify-content: center;
        align-items: stretch;
        margin-top: var(--space-lg);
    }

    .about__stat {
        width: 100%;
        padding: var(--space-lg) var(--space-md);
    }

    .about__image-accent {
        display: none;
    }

    .services__grid {
        grid-template-columns: 1fr;
    }

    .services__actions .btn {
        width: 100%;
        min-width: 0;
    }

    .projects__grid {
        grid-template-columns: 1fr;
    }

    .project-card {
        min-height: 300px;
    }

    .why-us__grid {
        grid-template-columns: 1fr 1fr;
        gap: var(--space-md);
    }

    .why-us__item {
        padding: var(--space-lg) var(--space-md);
    }

    .values__grid {
        grid-template-columns: 1fr 1fr;
        gap: var(--space-md);
    }

    .value-card {
        padding: var(--space-lg);
    }

    .cta__title {
        font-size: 1.75rem;
    }

    .cta__inner {
        text-align: left;
    }

    .cta__desc {
        margin-bottom: var(--space-xl);
    }

    .cta__buttons {
        justify-content: flex-start;
        flex-direction: column;
        align-items: stretch;
        width: 100%;
        gap: var(--space-sm);
    }

    .cta__buttons .btn {
        width: 100%;
        justify-content: center;
    }

    .cta__info {
        grid-template-columns: 1fr;
        gap: var(--space-md);
        margin-top: var(--space-sm);
    }

    .cta__info-item {
        flex-direction: row;
        align-items: flex-start;
        text-align: left;
        padding: 0.75rem 0.875rem;
        border: 1px solid rgba(255, 255, 255, 0.12);
        border-radius: 12px;
        background: rgba(255, 255, 255, 0.04);
    }

    .footer__grid {
        grid-template-columns: 1fr;
        gap: var(--space-2xl);
        text-align: left;
    }

    .footer__col {
        width: 100%;
        max-width: 360px;
        margin: 0 auto;
    }

    .footer__col-title::after {
        left: 0;
        transform: none;
    }

    .footer__social {
        justify-content: flex-start;
    }

    .footer__list-item {
        justify-content: flex-start;
    }

    .footer__desc,
    .footer__copyright {
        text-align: left;
    }
}

/* ========================================
   RESPONSIVE - SMALL MOBILE (max-width: 480px)
======================================== */
@media (max-width: 480px) {
    .section__title {
        font-size: 1.625rem;
    }

    .section__subtitle {
        font-size: 0.9375rem;
    }

    .hero {
        min-height: 100svh;
    }

    @supports (height: 100dvh) {
        .hero {
            min-height: 100dvh;
        }
    }

    .hero__dots {
        bottom: calc(env(safe-area-inset-bottom, 0px) + 0.75rem);
    }

    .hero__card {
        padding: var(--space-xl) var(--space-lg);
    }

    .hero__card-badge {
        font-size: 0.6875rem;
        padding: 5px 14px;
    }

    .hero__card-title {
        font-size: 1.625rem;
    }

    .hero__card-desc {
        font-size: 0.875rem;
    }

    .btn {
        padding: 0.75rem 1.5rem;
        font-size: 0.875rem;
    }

    .why-us__grid {
        grid-template-columns: 1fr;
    }

    .values__grid {
        grid-template-columns: 1fr;
    }

    .project-card__content {
        padding: var(--space-lg);
    }

    .project-card__title {
        font-size: 1.05rem;
    }

    .project-card__desc {
        font-size: 0.875rem;
        max-height: none;
        margin-top: 2px;
        overflow: visible;
        opacity: 1;
        transform: none;
    }

    .about__stats {
        grid-template-columns: repeat(2, minmax(0, 1fr));
        gap: var(--space-sm);
    }

    .about__stat {
        max-width: none;
    }

    .faq__question {
        padding: var(--space-md) var(--space-lg);
        font-size: 0.9375rem;
    }

    .faq__answer p {
        padding: 0 var(--space-lg) var(--space-md);
        font-size: 0.875rem;
    }

    .cta__title {
        font-size: 1.5rem;
    }

    .header__logo-img {
        height: 46px;
    }

    .header__lang {
        padding: 3px 6px;
    }

    .header__lang-btn {
        padding: 3px 6px;
        font-size: 0.6875rem;
    }

    .footer__col {
        max-width: 100%;
    }
}

/* ========================================
   WHATSAPP FLOATING BUTTON
======================================== */
.whatsapp-float {
    position: fixed;
    bottom: 2rem;
    right: 2rem;
    z-index: 500;
}

.whatsapp-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-sm);
    width: 56px;
    height: 56px;
    background: linear-gradient(135deg, #25D366 0%, #1BA851 100%);
    border-radius: 50%;
    box-shadow: 0 4px 20px rgba(37, 211, 102, 0.35);
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    color: var(--color-white);
    border: none;
    cursor: pointer;
}

.whatsapp-btn:hover {
    transform: scale(1.1) translateY(-4px);
    box-shadow: 0 8px 32px rgba(37, 211, 102, 0.45);
}

.whatsapp-btn:active {
    transform: scale(0.95);
}

.whatsapp-icon {
    width: 28px;
    height: 28px;
    display: flex;
    align-items: center;
    justify-content: center;
}


.whatsapp-btn i,
.whatsapp-btn [data-lucide] {
    width: 28px;
    height: 28px;
    stroke-width: 1.5;
}

.whatsapp-text {
    display: none;
    font-family: var(--font-heading);
    font-size: 0.8125rem;
    font-weight: 600;
    white-space: nowrap;
}

/* Desktop: Show hover tooltip */
@media (min-width: 1024px) {
    .whatsapp-btn {
        width: 56px;
        height: 56px;
        position: relative;
    }

    .whatsapp-btn::before {
        content: 'WhatsApp';
        position: absolute;
        right: 70px;
        background: rgba(37, 211, 102, 0.95);
        color: white;
        padding: 8px 12px;
        border-radius: 6px;
        font-size: 0.75rem;
        font-weight: 600;
        white-space: nowrap;
        opacity: 0;
        pointer-events: none;
        transition: opacity 0.2s ease;
        bottom: 50%;
        transform: translateY(50%);
        backdrop-filter: blur(4px);
    }

    .whatsapp-btn:hover::before {
        opacity: 1;
    }
}

/* Tablet: Medium button */
@media (max-width: 1024px) and (min-width: 768px) {
    .whatsapp-float {
        bottom: 1.5rem;
        right: 1.5rem;
    }

    .whatsapp-btn {
        width: 52px;
        height: 52px;
    }

    .whatsapp-btn i,
    .whatsapp-btn [data-lucide] {
        width: 24px;
        height: 24px;
    }
}

/* Mobile: Smaller button with text option */
@media (max-width: 768px) {
    .whatsapp-float {
        bottom: 1rem;
        right: 1rem;
    }

    .whatsapp-btn {
        width: 50px;
        height: 50px;
        gap: 0;
        padding: 0;
    }

    .whatsapp-btn i,
    .whatsapp-btn [data-lucide] {
        width: 24px;
        height: 24px;
    }

    .whatsapp-btn::before {
        display: none;
    }
}

/* Very small mobile: Extra compact */
@media (max-width: 380px) {
    .whatsapp-float {
        bottom: 0.75rem;
        right: 0.75rem;
    }

    .whatsapp-btn {
        width: 46px;
        height: 46px;
        box-shadow: 0 2px 12px rgba(37, 211, 102, 0.3);
    }

    .whatsapp-btn i,
    .whatsapp-btn [data-lucide] {
        width: 20px;
        height: 20px;
    }
}

/* ========================================
   ACTIVITIES PAGE - HERO SINGLE (Faaliyet Alanları)
======================================== */
.hero-single {
    position: relative;
    height: calc(100vh - var(--header-height));
    min-height: 500px;
    margin-top: var(--header-height);
    overflow: hidden;
    display: flex;
    align-items: center;
    justify-content: center;
}

.hero-single__img {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: center;
}

.hero-single__overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg,
            rgba(14, 38, 74, 0.65) 0%,
            rgba(22, 58, 112, 0.5) 50%,
            rgba(22, 58, 112, 0.35) 100%);
}

.hero-single__content {
    position: relative;
    z-index: 10;
    text-align: center;
    max-width: 900px;
    padding: 0 var(--space-xl);
    opacity: 1;
    transform: none;
}

.hero-single__eyebrow {
    display: inline-block;
    margin-bottom: var(--space-md);
    padding: 8px 20px;
    border-radius: 999px;
    font-family: var(--font-heading);
    font-size: 0.8125rem;
    font-weight: 700;
    letter-spacing: 1.8px;
    text-transform: uppercase;
    color: var(--color-white);
    background: rgba(245, 124, 0, 0.82);
    box-shadow: 0 8px 24px rgba(245, 124, 0, 0.28);
}

.hero-single__title {
    font-family: var(--font-heading);
    font-size: 3.5rem;
    font-weight: 800;
    color: var(--color-white);
    line-height: 1.1;
    margin-bottom: var(--space-md);
    letter-spacing: -0.5px;
    text-shadow: 0 2px 20px rgba(0, 0, 0, 0.4);
}

.hero-single__subtitle {
    font-size: 1.3rem;
    color: rgba(255, 255, 255, 0.90);
    line-height: 1.6;
    max-width: 600px;
    margin: 0 auto;
    text-shadow: 0 1px 10px rgba(0, 0, 0, 0.3);
}

.hero-single__text {
    margin: var(--space-lg) auto 0;
    max-width: 760px;
    font-size: 1rem;
    line-height: 1.8;
    color: rgba(255, 255, 255, 0.88);
    text-shadow: 0 1px 8px rgba(0, 0, 0, 0.25);
}

.hero-single__highlights {
    margin-top: var(--space-xl);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-sm);
    flex-wrap: wrap;
}

.hero-single__chip {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 8px 14px;
    border-radius: 999px;
    font-family: var(--font-heading);
    font-size: 0.8125rem;
    font-weight: 600;
    letter-spacing: 0.2px;
    color: var(--color-white);
    background: rgba(255, 255, 255, 0.12);
    border: 1px solid rgba(255, 255, 255, 0.3);
    backdrop-filter: blur(3px);
}

/* ========================================
   ACTIVITIES SECTION - Activity Items
======================================== */
.activities {
    background-color: var(--color-white);
}

.activity-item {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-4xl);
    align-items: center;
    margin-bottom: var(--space-4xl);
    padding: var(--space-2xl) 0;
    border-bottom: 1px solid var(--color-gray-100);
}

.activity-item:last-child {
    border-bottom: none;
    margin-bottom: 0;
}

.activity-item--reverse {
    direction: rtl;
}

.activity-item--reverse > * {
    direction: ltr;
}

.activity-item__image {
    position: relative;
    aspect-ratio: 4 / 3;
    overflow: hidden;
    border-radius: var(--radius-lg);
    box-shadow: 0 20px 60px rgba(22, 58, 112, 0.12);
    transition: all 0.5s cubic-bezier(0.4, 0, 0.2, 1);
}

.activity-item__image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: center;
    transition: transform 0.6s cubic-bezier(0.4, 0, 0.2, 1);
}

.activity-item:hover .activity-item__image img {
    transform: scale(1.05);
}

.activity-item__content {
    padding: var(--space-lg) 0;
}

.activity-item__title {
    font-family: var(--font-heading);
    font-size: 2rem;
    font-weight: 800;
    color: var(--color-primary);
    line-height: 1.2;
    margin-bottom: var(--space-md);
}

.activity-item__desc {
    font-size: 1.0625rem;
    color: var(--color-text-light);
    line-height: 1.8;
    margin-bottom: var(--space-xl);
}

/* Activity Button */
.activity-item .btn {
    display: inline-flex;
}

/* Responsive Activities */
@media (max-width: 1024px) {
    .activity-item {
        grid-template-columns: 1fr;
        gap: var(--space-2xl);
    }

    .activity-item--reverse {
        direction: ltr;
    }

    .activity-item__title {
        font-size: 1.625rem;
    }

    .activity-item__desc {
        font-size: 1rem;
    }
}

@media (max-width: 768px) {
    .activity-item {
        gap: var(--space-xl);
        margin-bottom: var(--space-2xl);
        padding: var(--space-xl) 0;
    }

    .activity-item__image {
        aspect-ratio: 3 / 2;
    }

    .activity-item__title {
        font-size: 1.5rem;
    }

    .activity-item__desc {
        font-size: 0.9375rem;
    }

    .activity-item__content {
        padding: 0;
    }
}

@media (max-width: 480px) {
    .activity-item {
        gap: var(--space-md);
        margin-bottom: var(--space-xl);
        padding: var(--space-lg) 0;
    }

    .activity-item__image {
        aspect-ratio: 2 / 1;
    }

    .activity-item__title {
        font-size: 1.25rem;
    }

    .activity-item__desc {
        font-size: 0.875rem;
        margin-bottom: var(--space-lg);
    }

    .references-page__grid {
        grid-template-columns: 1fr;
    }

    .hero-single__title {
        font-size: 2.25rem;
    }

    .hero-single__subtitle {
        font-size: 1rem;
    }

    .hero-single__eyebrow {
        font-size: 0.6875rem;
        letter-spacing: 1.4px;
        padding: 6px 14px;
        margin-bottom: var(--space-sm);
    }

    .hero-single__text {
        font-size: 0.875rem;
        line-height: 1.7;
        margin-top: var(--space-md);
    }

    .hero-single__highlights {
        margin-top: var(--space-lg);
        gap: 6px;
    }

    .hero-single__chip {
        font-size: 0.75rem;
        padding: 6px 10px;
    }
}