/* ========================================
   Gitas Gumruk Musavirligi - Modern CSS
   ======================================== */

/* CSS Variables - V2b Modern Crimson + Slate Navy Theme */
:root {
    --primary: #C62828;
    --primary-dark: #9B1B1B;
    --primary-light: #E53935;
    --secondary: #90A4AE;
    --secondary-light: #B0BEC5;
    --accent: #EF5350;
    --dark: #0F1923;
    --dark-light: #1A2938;
    --gray-900: #1A2230;
    --gray-800: #2C3A4A;
    --gray-700: #4A5668;
    --gray-600: #6B7B8D;
    --gray-500: #90A0AE;
    --gray-400: #B3C0CA;
    --gray-300: #D3DCE2;
    --gray-200: #E8EDF0;
    --gray-100: #F3F5F7;
    --gray-50: #F9FAFB;
    --white: #ffffff;
    --gradient-primary: linear-gradient(135deg, #C62828 0%, #E53935 50%, #EF5350 100%);
    --gradient-gold: linear-gradient(135deg, #90A4AE 0%, #B0BEC5 100%);
    --gradient-dark: linear-gradient(135deg, #0F1923 0%, #1A2938 100%);
    --shadow-sm: 0 2px 8px rgba(15, 25, 35, 0.06);
    --shadow-md: 0 4px 20px rgba(15, 25, 35, 0.08);
    --shadow-lg: 0 8px 40px rgba(15, 25, 35, 0.12);
    --shadow-xl: 0 16px 60px rgba(15, 25, 35, 0.16);
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --radius-xl: 24px;
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

/* Reset */
*, *::before, *::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
    scroll-padding-top: 80px;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    color: var(--dark);
    background: var(--white);
    line-height: 1.7;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    overflow-x: hidden;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}

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

ul { list-style: none; }
img { max-width: 100%; display: block; }

/* ========================================
   Typography
   ======================================== */
h1, h2, h3, h4 {
    font-weight: 700;
    line-height: 1.2;
}

.gradient-text {
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

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

.section-tag {
    display: inline-block;
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--primary);
    background: rgba(198, 40, 40, 0.08);
    padding: 6px 20px;
    border-radius: 50px;
    margin-bottom: 16px;
    letter-spacing: 0.5px;
    text-transform: uppercase;
}

.section-header h2 {
    font-size: clamp(1.8rem, 4vw, 2.8rem);
    color: var(--dark);
    margin-bottom: 16px;
}

.section-desc {
    font-size: 1.1rem;
    color: var(--gray-600);
    max-width: 600px;
    margin: 0 auto;
}

/* ========================================
   Buttons
   ======================================== */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 14px 32px;
    border-radius: var(--radius-md);
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    border: none;
    transition: var(--transition);
    font-family: inherit;
}

.btn-primary {
    background: var(--gradient-primary);
    color: var(--white);
    box-shadow: 0 4px 20px rgba(198, 40, 40, 0.3);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 30px rgba(198, 40, 40, 0.4);
}

.btn-outline {
    background: rgba(255, 255, 255, 0.1);
    color: var(--white);
    border: 2px solid rgba(255, 255, 255, 0.3);
    backdrop-filter: blur(10px);
}

.btn-outline:hover {
    background: rgba(255, 255, 255, 0.2);
    border-color: rgba(255, 255, 255, 0.5);
    transform: translateY(-2px);
}

/* ========================================
   Navbar
   ======================================== */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    padding: 20px 0;
    transition: var(--transition);
}

.navbar.scrolled {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(20px);
    padding: 12px 0;
    box-shadow: var(--shadow-md);
}

.nav-container {
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.logo {
    display: flex;
    align-items: center;
    gap: 12px;
    z-index: 1001;
}

.logo-icon {
    width: 56px;
    height: 56px;
    background: var(--gradient-primary);
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--white);
    font-size: 1.5rem;
}

.logo-text {
    display: flex;
    flex-direction: column;
}

.logo-main {
    font-size: 1.25rem;
    font-weight: 800;
    color: var(--white);
    letter-spacing: 1px;
    line-height: 1.1;
}

.logo-sub {
    font-size: 0.6rem;
    font-weight: 500;
    color: rgba(255, 255, 255, 0.7);
    letter-spacing: 1.5px;
    text-transform: uppercase;
}

.navbar.scrolled .logo-main {
    color: var(--dark);
}

.navbar.scrolled .logo-sub {
    color: var(--gray-600);
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 8px;
}

.nav-links a {
    padding: 8px 18px;
    font-size: 0.92rem;
    font-weight: 500;
    color: rgba(255, 255, 255, 0.85);
    border-radius: var(--radius-sm);
    transition: var(--transition);
}

.nav-links a:hover {
    color: var(--white);
    background: rgba(255, 255, 255, 0.1);
}

.navbar.scrolled .nav-links a {
    color: var(--gray-700);
}

.navbar.scrolled .nav-links a:hover {
    color: var(--primary);
    background: rgba(198, 40, 40, 0.06);
}

.nav-cta {
    background: var(--gradient-primary) !important;
    color: var(--white) !important;
    padding: 8px 24px !important;
    border-radius: var(--radius-sm) !important;
}

.nav-cta:hover {
    transform: translateY(-1px);
    box-shadow: 0 4px 15px rgba(198, 40, 40, 0.3);
}

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

.hamburger span {
    display: block;
    width: 24px;
    height: 2px;
    background: var(--white);
    border-radius: 2px;
    transition: var(--transition);
}

.navbar.scrolled .hamburger span {
    background: var(--dark);
}

/* ========================================
   Hero Section
   ======================================== */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--dark);
    overflow: hidden;
}

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

.hero-video {
    position: absolute;
    top: 50%;
    left: 50%;
    min-width: 100%;
    min-height: 100%;
    width: auto;
    height: auto;
    transform: translate(-50%, -50%);
    object-fit: cover;
    opacity: 0;
    transition: opacity 1.5s ease;
}

.hero-video.active {
    opacity: 1;
}

.hero-overlay {
    position: absolute;
    inset: 0;
    background:
        linear-gradient(180deg, rgba(15, 25, 35, 0.75) 0%, rgba(15, 25, 35, 0.55) 50%, rgba(15, 25, 35, 0.85) 100%),
        radial-gradient(ellipse at 20% 50%, rgba(198, 40, 40, 0.3) 0%, transparent 60%),
        radial-gradient(ellipse at 80% 20%, rgba(239, 83, 80, 0.15) 0%, transparent 50%);
    z-index: 1;
}

.hero-particles {
    position: absolute;
    inset: 0;
    z-index: 1;
    overflow: hidden;
}

.hero-content {
    position: relative;
    z-index: 2;
    text-align: center;
    padding: 120px 0 80px;
}

.hero-logo {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 16px;
    margin-bottom: 36px;
    animation: fadeInDown 0.8s ease-out;
}

.hero-logo-icon {
    width: 90px;
    height: 90px;
    background: var(--gradient-primary);
    border-radius: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--white);
    font-size: 2.4rem;
    box-shadow: 0 8px 32px rgba(198, 40, 40, 0.4);
}

.hero-logo-text {
    display: flex;
    flex-direction: column;
    align-items: center;
}

.hero-logo-main {
    font-size: 2.2rem;
    font-weight: 800;
    color: var(--white);
    letter-spacing: 4px;
    line-height: 1.1;
}

.hero-logo-sub {
    font-size: 0.85rem;
    font-weight: 500;
    color: rgba(255, 255, 255, 0.7);
    letter-spacing: 4px;
    text-transform: uppercase;
    margin-top: 4px;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: rgba(144, 164, 174, 0.15);
    border: 1px solid rgba(144, 164, 174, 0.3);
    color: var(--secondary);
    padding: 8px 20px;
    border-radius: 50px;
    font-size: 0.85rem;
    font-weight: 600;
    margin-bottom: 32px;
    animation: fadeInDown 0.8s ease-out;
}

.hero h1 {
    font-size: clamp(2.2rem, 5.5vw, 4rem);
    color: var(--white);
    margin-bottom: 24px;
    animation: fadeInUp 0.8s ease-out 0.2s both;
    line-height: 1.15;
}

.hero h1 .gradient-text {
    background: linear-gradient(135deg, #EF5350 0%, #90A4AE 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-desc {
    font-size: clamp(1rem, 2vw, 1.2rem);
    color: rgba(255, 255, 255, 0.7);
    max-width: 650px;
    margin: 0 auto 40px;
    line-height: 1.8;
    animation: fadeInUp 0.8s ease-out 0.4s both;
}

.hero-buttons {
    display: flex;
    gap: 16px;
    justify-content: center;
    flex-wrap: wrap;
    margin-bottom: 60px;
    animation: fadeInUp 0.8s ease-out 0.6s both;
}

.hero-stats {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 40px;
    animation: fadeInUp 0.8s ease-out 0.8s both;
}

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

.stat-number {
    font-size: 2.5rem;
    font-weight: 800;
    color: var(--white);
    display: inline;
}

.stat-plus {
    font-size: 2rem;
    font-weight: 700;
    color: var(--secondary);
}

.stat-label {
    display: block;
    font-size: 0.85rem;
    color: rgba(255, 255, 255, 0.5);
    margin-top: 4px;
    font-weight: 500;
}

.stat-divider {
    width: 1px;
    height: 40px;
    background: rgba(255, 255, 255, 0.15);
}

.hero-scroll {
    position: absolute;
    bottom: 40px;
    left: 50%;
    transform: translateX(-50%);
    z-index: 2;
}

.scroll-indicator {
    width: 24px;
    height: 40px;
    border: 2px solid rgba(255, 255, 255, 0.3);
    border-radius: 12px;
    display: flex;
    justify-content: center;
    padding-top: 8px;
}

.scroll-dot {
    width: 4px;
    height: 8px;
    background: var(--white);
    border-radius: 2px;
    animation: scrollBounce 2s infinite;
}

/* ========================================
   About Section
   ======================================== */
.about {
    padding: 120px 0;
    background: var(--gray-50);
}

.about-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.about-lead {
    font-size: 1.15rem;
    color: var(--dark);
    margin-bottom: 20px;
    line-height: 1.8;
}

.about-content p {
    color: var(--gray-600);
    margin-bottom: 16px;
    font-size: 1rem;
}

.about-features {
    display: flex;
    flex-direction: column;
    gap: 16px;
    margin-top: 32px;
}

.about-feature {
    display: flex;
    align-items: center;
    gap: 16px;
    padding: 16px 20px;
    background: var(--white);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
}

.about-feature:hover {
    transform: translateX(8px);
    box-shadow: var(--shadow-md);
}

.feature-icon {
    color: var(--accent);
    font-size: 1.3rem;
    flex-shrink: 0;
}

.about-feature strong {
    display: block;
    font-size: 0.95rem;
    color: var(--dark);
    margin-bottom: 2px;
}

.about-feature span {
    font-size: 0.85rem;
    color: var(--gray-500);
}

.about-card {
    background: var(--gradient-dark);
    border-radius: var(--radius-xl);
    padding: 48px 40px;
    color: var(--white);
    position: relative;
    overflow: hidden;
}

.about-card-icon {
    width: 64px;
    height: 64px;
    background: rgba(239, 83, 80, 0.15);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    color: var(--accent);
    margin-bottom: 24px;
}

.about-card h3 {
    font-size: 1.4rem;
    margin-bottom: 16px;
}

.about-card p {
    color: rgba(255, 255, 255, 0.7);
    line-height: 1.8;
    font-size: 1rem;
}

.card-decoration {
    position: absolute;
    bottom: -40px;
    right: -40px;
    width: 200px;
    height: 200px;
    background: rgba(239, 83, 80, 0.08);
    border-radius: 50%;
}

/* ========================================
   Services Section
   ======================================== */
.services {
    padding: 120px 0;
    background: var(--white);
}

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

.service-card {
    background: var(--white);
    border: 1px solid var(--gray-200);
    border-radius: var(--radius-lg);
    padding: 40px 32px;
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}

.service-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: var(--gradient-primary);
    transform: scaleX(0);
    transform-origin: left;
    transition: transform 0.4s ease;
}

.service-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
    border-color: transparent;
}

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

.service-icon {
    width: 56px;
    height: 56px;
    background: rgba(198, 40, 40, 0.08);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.3rem;
    color: var(--primary);
    margin-bottom: 24px;
    transition: var(--transition);
}

.service-card:hover .service-icon {
    background: var(--gradient-primary);
    color: var(--white);
}

.service-card h3 {
    font-size: 1.2rem;
    color: var(--dark);
    margin-bottom: 12px;
}

.service-card > p {
    font-size: 0.92rem;
    color: var(--gray-600);
    margin-bottom: 20px;
    line-height: 1.7;
}

.service-list {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.service-list li {
    font-size: 0.88rem;
    color: var(--gray-600);
    padding-left: 20px;
    position: relative;
}

.service-list li::before {
    content: '';
    position: absolute;
    left: 0;
    top: 10px;
    width: 6px;
    height: 6px;
    background: var(--accent);
    border-radius: 50%;
}

/* ========================================
   Why Us Section
   ======================================== */
.why-us {
    padding: 120px 0;
    background: var(--gray-50);
}

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

.why-card {
    background: var(--white);
    border-radius: var(--radius-lg);
    padding: 40px 32px;
    transition: var(--transition);
    border: 1px solid var(--gray-200);
}

.why-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
    border-color: transparent;
}

.why-number {
    font-size: 2.5rem;
    font-weight: 800;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 16px;
    line-height: 1;
}

.why-card h3 {
    font-size: 1.15rem;
    color: var(--dark);
    margin-bottom: 12px;
}

.why-card p {
    font-size: 0.92rem;
    color: var(--gray-600);
    line-height: 1.7;
}

/* ========================================
   Contact Section
   ======================================== */
.contact {
    padding: 120px 0;
    background: var(--white);
}

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

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

.contact-card {
    display: flex;
    gap: 20px;
    padding: 24px;
    background: var(--gray-50);
    border-radius: var(--radius-md);
    transition: var(--transition);
    border: 1px solid transparent;
}

.contact-card:hover {
    background: var(--white);
    border-color: var(--gray-200);
    box-shadow: var(--shadow-md);
    transform: translateX(4px);
}

.contact-icon {
    width: 48px;
    height: 48px;
    background: var(--gradient-primary);
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--white);
    font-size: 1.1rem;
    flex-shrink: 0;
}

.contact-card h4 {
    font-size: 0.95rem;
    color: var(--dark);
    margin-bottom: 6px;
}

.contact-card p {
    font-size: 0.9rem;
    color: var(--gray-600);
    line-height: 1.7;
}

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

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

.contact-map {
    min-height: 400px;
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-md);
}

/* ========================================
   Footer
   ======================================== */
.footer {
    background: var(--gradient-dark);
    padding: 80px 0 0;
    color: var(--white);
}

.footer-grid {
    display: grid;
    grid-template-columns: 1.5fr 1fr 1fr 1fr;
    gap: 48px;
    padding-bottom: 48px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.footer-brand p {
    color: rgba(255, 255, 255, 0.5);
    margin-top: 20px;
    font-size: 0.92rem;
    line-height: 1.7;
}

.footer-brand .logo-main {
    font-size: 1.1rem;
}

.footer-links h4,
.footer-contact h4 {
    font-size: 1rem;
    margin-bottom: 20px;
    color: var(--white);
}

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

.footer-links a {
    font-size: 0.9rem;
    color: rgba(255, 255, 255, 0.5);
    transition: var(--transition);
}

.footer-links a:hover {
    color: var(--accent);
    transform: translateX(4px);
    display: inline-block;
}

.footer-contact p {
    font-size: 0.9rem;
    color: rgba(255, 255, 255, 0.5);
    margin-bottom: 12px;
    display: flex;
    align-items: center;
    gap: 10px;
}

.footer-contact i {
    color: var(--accent);
    width: 16px;
}

.footer-bottom {
    padding: 24px 0;
    text-align: center;
}

.footer-bottom p {
    font-size: 0.85rem;
    color: rgba(255, 255, 255, 0.35);
}

/* ========================================
   Vision & Mission Cards
   ======================================== */
.vision-mission-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
    margin-top: 20px;
}

.vm-card {
    background: var(--white);
    border-radius: var(--radius-md);
    padding: 28px 24px;
    border: 1px solid var(--gray-200);
    transition: var(--transition);
}

.vm-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-md);
    border-color: transparent;
}

.vm-icon {
    width: 40px;
    height: 40px;
    background: rgba(198, 40, 40, 0.08);
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--primary);
    font-size: 1rem;
    margin-bottom: 14px;
}

.vm-card h4 {
    font-size: 1rem;
    color: var(--dark);
    margin-bottom: 8px;
}

.vm-card p {
    font-size: 0.85rem;
    color: var(--gray-600);
    line-height: 1.7;
}

/* ========================================
   Trust Indicators Section
   ======================================== */
.trust-section {
    padding: 60px 0;
    background: var(--gradient-dark);
    position: relative;
    overflow: hidden;
}

.trust-section::before {
    content: '';
    position: absolute;
    inset: 0;
    background:
        radial-gradient(ellipse at 30% 50%, rgba(239, 83, 80, 0.12) 0%, transparent 60%),
        radial-gradient(ellipse at 70% 50%, rgba(144, 164, 174, 0.08) 0%, transparent 60%);
}

.trust-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 32px;
    position: relative;
    z-index: 1;
}

.trust-item {
    text-align: center;
    padding: 32px 20px;
    border-radius: var(--radius-lg);
    background: rgba(255, 255, 255, 0.04);
    border: 1px solid rgba(255, 255, 255, 0.08);
    transition: var(--transition);
}

.trust-item:hover {
    background: rgba(255, 255, 255, 0.08);
    transform: translateY(-4px);
}

.trust-icon {
    font-size: 1.5rem;
    color: var(--accent);
    margin-bottom: 12px;
}

.trust-number {
    font-size: 2.2rem;
    font-weight: 800;
    color: var(--white);
    line-height: 1.1;
    margin-bottom: 4px;
}

.trust-label {
    font-size: 0.88rem;
    color: rgba(255, 255, 255, 0.5);
    font-weight: 500;
}

/* ========================================
   FAQ Section
   ======================================== */
.faq {
    padding: 120px 0;
    background: var(--gray-50);
}

.faq-list {
    max-width: 800px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.faq-item {
    background: var(--white);
    border-radius: var(--radius-md);
    border: 1px solid var(--gray-200);
    overflow: hidden;
    transition: var(--transition);
}

.faq-item:hover {
    border-color: var(--gray-300);
}

.faq-item.active {
    border-color: var(--primary);
    box-shadow: var(--shadow-md);
}

.faq-question {
    display: flex;
    align-items: center;
    justify-content: space-between;
    width: 100%;
    padding: 20px 24px;
    background: none;
    border: none;
    cursor: pointer;
    font-family: inherit;
    font-size: 1rem;
    font-weight: 600;
    color: var(--dark);
    text-align: left;
    gap: 16px;
    transition: var(--transition);
}

.faq-question:hover {
    color: var(--primary);
}

.faq-question i {
    font-size: 0.85rem;
    color: var(--gray-500);
    transition: transform 0.3s ease;
    flex-shrink: 0;
}

.faq-item.active .faq-question i {
    transform: rotate(180deg);
    color: var(--primary);
}

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

.faq-item.active .faq-answer {
    max-height: 300px;
}

.faq-answer p {
    padding: 0 24px 20px;
    font-size: 0.92rem;
    color: var(--gray-600);
    line-height: 1.8;
}

/* ========================================
   Back to Top
   ======================================== */
.back-to-top {
    position: fixed;
    bottom: 30px;
    left: 30px;
    width: 44px;
    height: 44px;
    background: var(--gradient-primary);
    border: none;
    border-radius: 50%;
    color: var(--white);
    font-size: 1rem;
    cursor: pointer;
    z-index: 999;
    opacity: 0;
    visibility: hidden;
    transform: translateY(20px);
    transition: var(--transition);
    box-shadow: var(--shadow-md);
}

.back-to-top.visible {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.back-to-top:hover {
    transform: translateY(-4px);
}

/* ========================================
   Animations
   ======================================== */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes fadeInDown {
    from {
        opacity: 0;
        transform: translateY(-20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes scrollBounce {
    0%, 100% { transform: translateY(0); opacity: 1; }
    50% { transform: translateY(10px); opacity: 0.3; }
}

@keyframes pulse {
    0% { box-shadow: 0 4px 20px rgba(37, 211, 102, 0.4); }
    50% { box-shadow: 0 4px 30px rgba(37, 211, 102, 0.6); }
    100% { box-shadow: 0 4px 20px rgba(37, 211, 102, 0.4); }
}

@keyframes float {
    0%, 100% { transform: translateY(0px); }
    50% { transform: translateY(-20px); }
}

/* Scroll Reveal Animation */
.reveal {
    opacity: 0;
    transform: translateY(40px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

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

/* Floating Particles */
.particle {
    position: absolute;
    background: rgba(255, 255, 255, 0.03);
    border-radius: 50%;
    animation: float linear infinite;
}

/* ========================================
   Responsive Design
   ======================================== */
@media (max-width: 1024px) {
    .services-grid,
    .why-grid {
        grid-template-columns: repeat(2, 1fr);
    }

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

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

@media (max-width: 768px) {
    .nav-links {
        position: fixed;
        top: 0;
        left: 0;
        right: 0;
        bottom: 0;
        background: rgba(15, 25, 35, 0.98);
        backdrop-filter: blur(20px);
        flex-direction: column;
        justify-content: center;
        gap: 8px;
        opacity: 0;
        visibility: hidden;
        transition: var(--transition);
    }

    .nav-links.active {
        opacity: 1;
        visibility: visible;
    }

    .nav-links a {
        font-size: 1.2rem;
        color: var(--white) !important;
        padding: 12px 24px;
    }

    .hamburger {
        display: flex;
    }

    .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-content {
        padding: 140px 0 100px;
    }

    .hero-stats {
        flex-direction: column;
        gap: 20px;
    }

    .stat-divider {
        width: 60px;
        height: 1px;
    }

    .about-grid,
    .contact-grid {
        grid-template-columns: 1fr;
        gap: 40px;
    }

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

    .trust-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 16px;
    }

    .vision-mission-row {
        grid-template-columns: 1fr;
    }

    .footer-grid {
        grid-template-columns: 1fr;
        gap: 32px;
    }

    .section-header {
        margin-bottom: 48px;
    }

    .about, .services, .why-us, .contact, .faq {
        padding: 80px 0;
    }
}

@media (max-width: 480px) {
    .hero h1 {
        font-size: 1.8rem;
    }

    .hero-buttons {
        flex-direction: column;
        align-items: center;
    }

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

    .contact-map {
        min-height: 300px;
    }
}