/* ============================================
   ELA Bilişim - Kurumsal Web Sitesi
   Design System & Styles
   ============================================ */

/* ===== CSS CUSTOM PROPERTIES ===== */
:root {
    /* Primary Palette (from logo) */
    --primary: #00BCD4;
    --primary-dark: #0097A7;
    --primary-light: #4DD0E1;
    --primary-glow: rgba(0, 188, 212, 0.3);
    --accent: #26C6DA;
    
    /* Dark Theme */
    --bg-dark: #0a192f;
    --bg-surface: #112240;
    --bg-card: #1a2a4a;
    --bg-card-hover: #1f3461;
    
    /* Text */
    --text-primary: #e6f1ff;
    --text-secondary: #a8b2d1;
    --text-muted: #8892b0;
    --text-accent: #ccd6f6;
    
    /* Gradients */
    --gradient-primary: linear-gradient(135deg, #00BCD4, #0097A7, #4DD0E1);
    --gradient-hero: linear-gradient(135deg, #0a192f 0%, #112240 50%, #0a192f 100%);
    --gradient-card: linear-gradient(135deg, rgba(26, 42, 74, 0.8), rgba(17, 34, 64, 0.6));
    --gradient-text: linear-gradient(135deg, #4DD0E1, #00BCD4, #26C6DA);
    
    /* Typography */
    --font-heading: 'Outfit', sans-serif;
    --font-body: 'Inter', sans-serif;
    
    /* Spacing */
    --section-padding: 120px 0;
    --container-max: 1200px;
    --container-padding: 0 24px;
    
    /* Borders */
    --border-glass: 1px solid rgba(77, 208, 225, 0.15);
    --border-radius: 16px;
    --border-radius-sm: 10px;
    --border-radius-lg: 24px;
    
    /* Shadows */
    --shadow-glow: 0 0 40px rgba(0, 188, 212, 0.15);
    --shadow-card: 0 8px 32px rgba(0, 0, 0, 0.3);
    --shadow-hover: 0 16px 48px rgba(0, 188, 212, 0.2);
    
    /* Transitions */
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slow: all 0.6s cubic-bezier(0.4, 0, 0.2, 1);
}

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

html {
    scroll-behavior: smooth;
    font-size: 16px;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    font-family: var(--font-body);
    background-color: var(--bg-dark);
    color: var(--text-primary);
    line-height: 1.7;
    overflow-x: hidden;
}

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

a:hover {
    color: var(--primary-light);
}

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

ul {
    list-style: none;
}

.container {
    max-width: var(--container-max);
    margin: 0 auto;
    padding: var(--container-padding);
}

/* ===== SKIP LINK (Accessibility) ===== */
.skip-link {
    position: absolute;
    top: -100%;
    left: 16px;
    padding: 12px 24px;
    background: var(--primary);
    color: var(--bg-dark);
    font-weight: 600;
    border-radius: 0 0 var(--border-radius-sm) var(--border-radius-sm);
    z-index: 9999;
    transition: top 0.3s ease;
}

.skip-link:focus {
    top: 0;
    color: var(--bg-dark);
}

/* ===== UTILITY CLASSES ===== */
.gradient-text {
    background: var(--gradient-text);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* ===== NAVBAR ===== */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    padding: 18px 0;
    transition: var(--transition);
    background: transparent;
}

.navbar.scrolled {
    padding: 10px 0;
    background: rgba(10, 25, 47, 0.92);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: var(--border-glass);
    box-shadow: 0 4px 30px rgba(0, 0, 0, 0.3);
}

.navbar-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 32px;
}

.navbar-logo img {
    height: 48px;
    transition: var(--transition);
}

.navbar.scrolled .navbar-logo img {
    height: 40px;
}

.navbar-menu {
    display: flex;
    align-items: center;
    gap: 8px;
}

.nav-link {
    position: relative;
    padding: 8px 18px;
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--text-secondary);
    border-radius: var(--border-radius-sm);
    transition: var(--transition);
}

.nav-link:hover,
.nav-link.active {
    color: var(--primary-light);
    background: rgba(0, 188, 212, 0.08);
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: 2px;
    left: 50%;
    width: 0;
    height: 2px;
    background: var(--gradient-primary);
    transition: var(--transition);
    transform: translateX(-50%);
    border-radius: 2px;
}

.nav-link.active::after,
.nav-link:hover::after {
    width: 24px;
}

.navbar-cta {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 10px 22px;
    background: var(--gradient-primary);
    color: var(--bg-dark) !important;
    font-weight: 600;
    font-size: 0.85rem;
    border-radius: 50px;
    transition: var(--transition);
    white-space: nowrap;
}

.navbar-cta:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-glow);
    color: var(--bg-dark) !important;
}

/* Hamburger */
.hamburger {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 6px;
    z-index: 1001;
}

.hamburger span {
    width: 26px;
    height: 2.5px;
    background: var(--text-primary);
    border-radius: 4px;
    transition: var(--transition);
}

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

.hamburger.active span:nth-child(2) {
    opacity: 0;
}

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

/* ===== HERO SECTION ===== */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
}

.hero-bg {
    position: absolute;
    inset: 0;
    z-index: 0;
}

.hero-bg-img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    filter: brightness(0.4);
}

.hero-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(
        180deg,
        rgba(10, 25, 47, 0.5) 0%,
        rgba(10, 25, 47, 0.7) 50%,
        rgba(10, 25, 47, 0.95) 100%
    );
}

.hero-particles {
    position: absolute;
    inset: 0;
    z-index: 1;
    pointer-events: none;
}

.particle {
    position: absolute;
    width: 3px;
    height: 3px;
    background: var(--primary);
    border-radius: 50%;
    opacity: 0;
    animation: particleFloat 6s ease-in-out infinite;
}

@keyframes particleFloat {
    0% { opacity: 0; transform: translateY(100vh) scale(0); }
    10% { opacity: 0.6; }
    90% { opacity: 0.6; }
    100% { opacity: 0; transform: translateY(-100px) scale(1); }
}

.hero-content {
    position: relative;
    z-index: 2;
    text-align: center;
    padding: 140px 24px 80px;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 8px 22px;
    background: rgba(0, 188, 212, 0.1);
    border: var(--border-glass);
    border-radius: 50px;
    font-size: 0.85rem;
    font-weight: 500;
    color: var(--primary-light);
    margin-bottom: 32px;
    backdrop-filter: blur(8px);
}

.badge-dot {
    width: 8px;
    height: 8px;
    background: var(--primary);
    border-radius: 50%;
    animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {
    0%, 100% { opacity: 1; box-shadow: 0 0 0 0 rgba(0, 188, 212, 0.4); }
    50% { opacity: 0.8; box-shadow: 0 0 0 8px rgba(0, 188, 212, 0); }
}

.hero-title {
    font-family: var(--font-heading);
    font-size: clamp(2.5rem, 6vw, 4.5rem);
    font-weight: 800;
    line-height: 1.15;
    margin-bottom: 24px;
    letter-spacing: -1px;
}

.hero-title-line {
    display: block;
}

.hero-subtitle {
    max-width: 680px;
    margin: 0 auto 40px;
    font-size: 1.1rem;
    color: var(--text-muted);
    line-height: 1.8;
}

.hero-actions {
    display: flex;
    gap: 16px;
    justify-content: center;
    flex-wrap: wrap;
    margin-bottom: 60px;
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 14px 32px;
    font-size: 0.95rem;
    font-weight: 600;
    border-radius: 50px;
    border: none;
    cursor: pointer;
    transition: var(--transition);
    font-family: var(--font-body);
}

.btn-primary {
    background: var(--gradient-primary);
    color: var(--bg-dark);
    box-shadow: 0 4px 20px rgba(0, 188, 212, 0.3);
}

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 30px rgba(0, 188, 212, 0.4);
    color: var(--bg-dark);
}

.btn-outline {
    background: transparent;
    color: var(--primary-light);
    border: 2px solid rgba(0, 188, 212, 0.4);
}

.btn-outline:hover {
    background: rgba(0, 188, 212, 0.1);
    border-color: var(--primary);
    transform: translateY(-3px);
    color: var(--primary-light);
}

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

/* Hero Stats */
.hero-stats {
    display: flex;
    justify-content: center;
    gap: 60px;
    flex-wrap: wrap;
}

.hero-stat {
    text-align: center;
}

.hero-stat-number {
    display: block;
    font-family: var(--font-heading);
    font-size: 2.5rem;
    font-weight: 800;
    color: var(--primary);
    line-height: 1;
}

.hero-stat-label {
    display: block;
    font-size: 0.85rem;
    color: var(--text-muted);
    margin-top: 8px;
}

/* Scroll Indicator */
.hero-scroll-indicator {
    position: absolute;
    bottom: 40px;
    left: 50%;
    transform: translateX(-50%);
    z-index: 3;
}

.scroll-mouse {
    width: 26px;
    height: 40px;
    border: 2px solid rgba(0, 188, 212, 0.4);
    border-radius: 14px;
    display: flex;
    justify-content: center;
    padding-top: 8px;
}

.scroll-wheel {
    width: 3px;
    height: 8px;
    background: var(--primary);
    border-radius: 2px;
    animation: scrollWheel 2s ease-in-out infinite;
}

@keyframes scrollWheel {
    0% { transform: translateY(0); opacity: 1; }
    100% { transform: translateY(12px); opacity: 0; }
}

/* ===== SECTION COMMON ===== */
.section {
    padding: var(--section-padding);
    position: relative;
}

.section-header {
    text-align: center;
    margin-bottom: 64px;
}

.section-tag {
    display: inline-block;
    font-size: 0.8rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 3px;
    color: var(--primary);
    margin-bottom: 16px;
    padding: 6px 18px;
    background: rgba(0, 188, 212, 0.08);
    border: var(--border-glass);
    border-radius: 50px;
}

.section-title {
    font-family: var(--font-heading);
    font-size: clamp(2rem, 4vw, 3rem);
    font-weight: 800;
    line-height: 1.2;
    margin-bottom: 16px;
    color: var(--text-primary);
}

.section-subtitle {
    font-size: 1.05rem;
    color: var(--text-muted);
    max-width: 580px;
    margin: 0 auto;
}

/* ===== SERVICES ===== */
.services {
    background: var(--bg-dark);
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}

.service-card {
    position: relative;
    padding: 36px 28px;
    background: var(--gradient-card);
    border: var(--border-glass);
    border-radius: var(--border-radius);
    overflow: hidden;
    transition: var(--transition);
    cursor: default;
}

.service-card:hover {
    transform: translateY(-8px);
    border-color: rgba(0, 188, 212, 0.35);
    box-shadow: var(--shadow-hover);
}

.service-glow {
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle, rgba(0, 188, 212, 0.06) 0%, transparent 60%);
    opacity: 0;
    transition: var(--transition-slow);
    pointer-events: none;
}

.service-card:hover .service-glow {
    opacity: 1;
}

.service-icon {
    width: 56px;
    height: 56px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(0, 188, 212, 0.1);
    border: 1px solid rgba(0, 188, 212, 0.2);
    border-radius: 14px;
    margin-bottom: 20px;
    transition: var(--transition);
}

.service-icon svg {
    width: 28px;
    height: 28px;
    color: var(--primary);
    transition: var(--transition);
}

.service-card:hover .service-icon {
    background: rgba(0, 188, 212, 0.2);
    border-color: rgba(0, 188, 212, 0.4);
    transform: scale(1.1);
}

.service-card:hover .service-icon svg {
    color: var(--primary-light);
}

.service-title {
    font-family: var(--font-heading);
    font-size: 1.15rem;
    font-weight: 700;
    margin-bottom: 10px;
    color: var(--text-accent);
}

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

/* ===== ABOUT ===== */
.about {
    overflow: hidden;
}

.about-bg {
    position: absolute;
    inset: 0;
    z-index: 0;
}

.about-bg-img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    filter: brightness(0.2);
}

.about-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(
        135deg,
        rgba(10, 25, 47, 0.92) 0%,
        rgba(10, 25, 47, 0.85) 100%
    );
}

.about-content {
    position: relative;
    z-index: 1;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 80px;
    align-items: center;
}

.about-text .section-tag {
    margin-bottom: 16px;
}

.about-text .section-title {
    text-align: left;
    margin-bottom: 24px;
}

.about-desc {
    font-size: 1rem;
    color: var(--text-secondary);
    margin-bottom: 16px;
    line-height: 1.8;
}

.about-features {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
    margin-top: 32px;
}

.about-feature {
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 0.92rem;
    color: var(--text-accent);
    font-weight: 500;
}

.feature-icon {
    width: 28px;
    height: 28px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(0, 188, 212, 0.15);
    border-radius: 50%;
    flex-shrink: 0;
}

.feature-icon svg {
    width: 16px;
    height: 16px;
    color: var(--primary);
}

/* About Image */
.about-image {
    display: flex;
    justify-content: center;
    align-items: center;
}

.about-image-wrapper {
    position: relative;
    padding: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.about-logo-img {
    max-width: 400px;
    border-radius: var(--border-radius);
    position: relative;
    z-index: 1;
    filter: drop-shadow(0 0 30px rgba(0, 188, 212, 0.2));
}

.about-image-glow {
    position: absolute;
    inset: -20px;
    background: radial-gradient(circle, rgba(0, 188, 212, 0.12) 0%, transparent 70%);
    border-radius: 50%;
    z-index: 0;
    animation: glowPulse 4s ease-in-out infinite;
}

@keyframes glowPulse {
    0%, 100% { transform: scale(1); opacity: 0.5; }
    50% { transform: scale(1.05); opacity: 0.8; }
}

/* ===== WHY US ===== */
.why-us {
    background: var(--bg-surface);
}

.why-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}

.why-card {
    padding: 36px 28px;
    background: rgba(26, 42, 74, 0.5);
    border: var(--border-glass);
    border-radius: var(--border-radius);
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}

.why-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: var(--gradient-primary);
    transform: scaleX(0);
    transition: var(--transition);
    transform-origin: left;
}

.why-card:hover {
    transform: translateY(-6px);
    border-color: rgba(0, 188, 212, 0.3);
    box-shadow: var(--shadow-hover);
}

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

.why-number {
    font-family: var(--font-heading);
    font-size: 2.5rem;
    font-weight: 800;
    color: rgba(0, 188, 212, 0.15);
    line-height: 1;
    margin-bottom: 16px;
}

.why-card:hover .why-number {
    color: rgba(0, 188, 212, 0.3);
}

.why-title {
    font-family: var(--font-heading);
    font-size: 1.2rem;
    font-weight: 700;
    color: var(--text-accent);
    margin-bottom: 10px;
}

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

/* ===== CONTACT ===== */
.contact {
    background: var(--bg-dark);
}

.contact-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 48px;
    margin-bottom: 48px;
}

.contact-info {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.contact-card {
    display: flex;
    align-items: flex-start;
    gap: 20px;
    padding: 24px;
    background: var(--gradient-card);
    border: var(--border-glass);
    border-radius: var(--border-radius);
    transition: var(--transition);
}

.contact-card:hover {
    border-color: rgba(0, 188, 212, 0.3);
    transform: translateX(6px);
}

.contact-icon {
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(0, 188, 212, 0.1);
    border: 1px solid rgba(0, 188, 212, 0.2);
    border-radius: 12px;
    flex-shrink: 0;
}

.contact-icon svg {
    width: 22px;
    height: 22px;
    color: var(--primary);
}

.contact-detail h4 {
    font-family: var(--font-heading);
    font-size: 1rem;
    font-weight: 700;
    color: var(--text-accent);
    margin-bottom: 6px;
}

.contact-detail p {
    font-size: 0.9rem;
    color: var(--text-muted);
    line-height: 1.6;
}

.contact-detail a {
    color: var(--text-secondary);
}

.contact-detail a:hover {
    color: var(--primary);
}

/* Contact Form */
.contact-form-wrapper {
    padding: 40px;
    background: var(--gradient-card);
    border: var(--border-glass);
    border-radius: var(--border-radius-lg);
}

.contact-form {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
}

.form-group {
    position: relative;
}

.form-group input,
.form-group textarea,
.form-group select {
    width: 100%;
    padding: 16px 18px;
    background: rgba(10, 25, 47, 0.6);
    border: 1px solid rgba(77, 208, 225, 0.15);
    border-radius: var(--border-radius-sm);
    color: var(--text-primary);
    font-family: var(--font-body);
    font-size: 0.95rem;
    transition: var(--transition);
    outline: none;
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(0, 188, 212, 0.1);
}

.form-group label {
    position: absolute;
    left: 18px;
    top: 50%;
    transform: translateY(-50%);
    font-size: 0.9rem;
    color: var(--text-muted);
    transition: var(--transition);
    pointer-events: none;
    background: transparent;
    padding: 0 4px;
}

.form-group textarea ~ label {
    top: 20px;
    transform: none;
}

.form-group input:focus ~ label,
.form-group input:not(:placeholder-shown) ~ label,
.form-group textarea:focus ~ label,
.form-group textarea:not(:placeholder-shown) ~ label {
    top: -10px;
    left: 14px;
    transform: none;
    font-size: 0.75rem;
    color: var(--primary);
    background: var(--bg-card);
    padding: 0 6px;
}

.form-group select {
    cursor: pointer;
    appearance: none;
    background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' fill='none' viewBox='0 0 20 20'%3e%3cpath stroke='%238892b0' stroke-linecap='round' stroke-linejoin='round' stroke-width='1.5' d='M6 8l4 4 4-4'/%3e%3c/svg%3e");
    background-position: right 14px center;
    background-repeat: no-repeat;
    background-size: 18px;
}

.form-group select option {
    background: var(--bg-surface);
    color: var(--text-primary);
}

.contact-form .btn {
    font-size: 1rem;
    padding: 16px 32px;
    margin-top: 8px;
}

/* Map */
.contact-map {
    border-radius: var(--border-radius);
    overflow: hidden;
    border: var(--border-glass);
}

.contact-map iframe {
    display: block;
}

/* ===== FOOTER ===== */
.footer {
    background: var(--bg-surface);
    padding: 64px 0 0;
    border-top: var(--border-glass);
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1.5fr;
    gap: 48px;
    padding-bottom: 48px;
}

.footer-logo {
    height: 50px;
    margin-bottom: 16px;
}

.footer-desc {
    font-size: 0.9rem;
    color: var(--text-muted);
    line-height: 1.7;
    margin-bottom: 20px;
}

.footer-social {
    display: flex;
    gap: 12px;
}

.social-link {
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(0, 188, 212, 0.08);
    border: 1px solid rgba(0, 188, 212, 0.15);
    border-radius: 10px;
    transition: var(--transition);
}

.social-link svg {
    width: 18px;
    height: 18px;
    color: var(--text-muted);
    transition: var(--transition);
}

.social-link:hover {
    background: rgba(0, 188, 212, 0.15);
    border-color: rgba(0, 188, 212, 0.3);
    transform: translateY(-3px);
}

.social-link:hover svg {
    color: var(--primary);
}

.footer-links h4,
.footer-contact h4 {
    font-family: var(--font-heading);
    font-size: 1rem;
    font-weight: 700;
    color: var(--text-accent);
    margin-bottom: 20px;
}

.footer-links ul {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.footer-links a {
    font-size: 0.9rem;
    color: var(--text-muted);
    transition: var(--transition);
}

.footer-links a:hover {
    color: var(--primary);
    padding-left: 6px;
}

.footer-contact p {
    display: flex;
    align-items: flex-start;
    gap: 10px;
    font-size: 0.9rem;
    color: var(--text-muted);
    margin-bottom: 12px;
    line-height: 1.6;
}

.footer-contact a {
    color: var(--text-muted);
}

.footer-contact a:hover {
    color: var(--primary);
}

.footer-contact svg {
    flex-shrink: 0;
    color: var(--primary);
    margin-top: 2px;
}

.footer-bottom {
    padding: 24px 0;
    border-top: var(--border-glass);
    text-align: center;
}

.footer-bottom p {
    font-size: 0.85rem;
    color: var(--text-muted);
}

/* ===== WHATSAPP FAB ===== */
.whatsapp-fab {
    position: fixed;
    bottom: 28px;
    right: 28px;
    width: 60px;
    height: 60px;
    background: #25D366;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 999;
    box-shadow: 0 4px 20px rgba(37, 211, 102, 0.4);
    transition: var(--transition);
    opacity: 0;
    transform: scale(0) translateY(20px);
}

.whatsapp-fab.visible {
    opacity: 1;
    transform: scale(1) translateY(0);
}

.whatsapp-fab:hover {
    transform: scale(1.1) translateY(-3px);
    box-shadow: 0 8px 30px rgba(37, 211, 102, 0.5);
}

.whatsapp-fab svg {
    width: 30px;
    height: 30px;
    color: white;
}

/* ===== SCROLL ANIMATIONS ===== */
.animate-on-scroll {
    opacity: 0;
    transform: translateY(40px);
    transition: opacity 0.7s ease, transform 0.7s ease;
}

.animate-on-scroll.visible {
    opacity: 1;
    transform: translateY(0);
}

/* Stagger children */
.services-grid .service-card:nth-child(2) { transition-delay: 0.1s; }
.services-grid .service-card:nth-child(3) { transition-delay: 0.2s; }
.services-grid .service-card:nth-child(4) { transition-delay: 0.15s; }
.services-grid .service-card:nth-child(5) { transition-delay: 0.25s; }
.services-grid .service-card:nth-child(6) { transition-delay: 0.3s; }
.services-grid .service-card:nth-child(7) { transition-delay: 0.2s; }
.services-grid .service-card:nth-child(8) { transition-delay: 0.3s; }
.services-grid .service-card:nth-child(9) { transition-delay: 0.4s; }

.why-grid .why-card:nth-child(2) { transition-delay: 0.1s; }
.why-grid .why-card:nth-child(3) { transition-delay: 0.2s; }
.why-grid .why-card:nth-child(4) { transition-delay: 0.15s; }
.why-grid .why-card:nth-child(5) { transition-delay: 0.25s; }
.why-grid .why-card:nth-child(6) { transition-delay: 0.35s; }

/* ===== RESPONSIVE DESIGN ===== */
@media (max-width: 1024px) {
    .services-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .why-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .about-content {
        grid-template-columns: 1fr;
        gap: 48px;
    }
    
    .about-text .section-title {
        text-align: center;
    }
    
    .about-text {
        text-align: center;
    }
    
    .about-features {
        justify-items: center;
    }
    
    .footer-grid {
        grid-template-columns: 1fr 1fr;
        gap: 36px;
    }
}

@media (max-width: 768px) {
    :root {
        --section-padding: 80px 0;
    }
    
    /* Mobile Nav */
    .navbar-menu {
        position: fixed;
        top: 0;
        right: -100%;
        width: 280px;
        height: 100vh;
        background: rgba(10, 25, 47, 0.97);
        backdrop-filter: blur(20px);
        flex-direction: column;
        justify-content: center;
        gap: 8px;
        padding: 20px;
        border-left: var(--border-glass);
        transition: var(--transition);
        z-index: 1000;
    }
    
    .navbar-menu.active {
        right: 0;
    }
    
    .nav-link {
        font-size: 1.1rem;
        padding: 14px 24px;
        width: 100%;
        text-align: center;
    }
    
    .navbar-cta {
        display: none;
    }
    
    .hamburger {
        display: flex;
    }
    
    /* Hero mobile */
    .hero-content {
        padding: 120px 20px 60px;
    }
    
    .hero-stats {
        gap: 32px;
    }
    
    .hero-stat-number {
        font-size: 2rem;
    }
    
    /* Services mobile */
    .services-grid {
        grid-template-columns: 1fr;
    }
    
    /* Why Us mobile */
    .why-grid {
        grid-template-columns: 1fr;
    }
    
    /* About */
    .about-features {
        grid-template-columns: 1fr;
    }
    
    /* Contact */
    .contact-content {
        grid-template-columns: 1fr;
    }
    
    .form-row {
        grid-template-columns: 1fr;
    }
    
    /* Footer */
    .footer-grid {
        grid-template-columns: 1fr;
        gap: 32px;
    }
    
    .footer-brand {
        text-align: center;
    }
    
    .footer-social {
        justify-content: center;
    }
    
    .footer-links h4,
    .footer-contact h4 {
        text-align: center;
    }
    
    .footer-links ul {
        align-items: center;
    }
}

@media (max-width: 480px) {
    .hero-title {
        font-size: 2rem;
    }
    
    .hero-subtitle {
        font-size: 0.95rem;
    }
    
    .section-title {
        font-size: 1.75rem;
    }
    
    .hero-actions {
        flex-direction: column;
        align-items: center;
    }
    
    .btn {
        width: 100%;
        justify-content: center;
    }
    
    .contact-form-wrapper {
        padding: 24px;
    }
    
    .whatsapp-fab {
        bottom: 18px;
        right: 18px;
        width: 52px;
        height: 52px;
    }
    
    .whatsapp-fab svg {
        width: 26px;
        height: 26px;
    }
}