/* ===================================================
   WindblowiFi OÜ - Main Stylesheet
   Modern B2B Professional Design
   =================================================== */

/* === CSS Variables === */
:root {
    --primary: #0057FF;
    --primary-dark: #003FCC;
    --primary-light: #3D80FF;
    --secondary: #00C2FF;
    --accent: #FF6B00;
    --dark: #0A0E1A;
    --dark-2: #111827;
    --dark-3: #1F2937;
    --gray-900: #111827;
    --gray-800: #1F2937;
    --gray-700: #374151;
    --gray-600: #4B5563;
    --gray-500: #6B7280;
    --gray-400: #9CA3AF;
    --gray-300: #D1D5DB;
    --gray-200: #E5E7EB;
    --gray-100: #F3F4F6;
    --white: #FFFFFF;
    --text-primary: #0A0E1A;
    --text-secondary: #374151;
    --text-muted: #6B7280;
    --gradient-primary: linear-gradient(135deg, #0057FF 0%, #00C2FF 100%);
    --gradient-dark: linear-gradient(135deg, #0A0E1A 0%, #1a2540 100%);
    --shadow-sm: 0 1px 3px rgba(0,0,0,0.08), 0 1px 2px rgba(0,0,0,0.05);
    --shadow-md: 0 4px 16px rgba(0,0,0,0.1), 0 2px 8px rgba(0,0,0,0.06);
    --shadow-lg: 0 10px 40px rgba(0,0,0,0.12), 0 4px 16px rgba(0,0,0,0.08);
    --shadow-blue: 0 8px 32px rgba(0, 87, 255, 0.3);
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 20px;
    --radius-xl: 28px;
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --font: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
}

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

html {
    scroll-behavior: smooth;
    font-size: 16px;
}

body {
    font-family: var(--font);
    color: var(--text-primary);
    background: var(--white);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

img { max-width: 100%; display: block; }
a { text-decoration: none; color: inherit; }
ul { list-style: none; }
address { font-style: normal; }

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

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

.section-header.light { color: var(--white); }

.section-tag {
    display: inline-block;
    padding: 6px 16px;
    background: rgba(0, 87, 255, 0.1);
    color: var(--primary);
    border-radius: 100px;
    font-size: 13px;
    font-weight: 600;
    letter-spacing: 0.05em;
    text-transform: uppercase;
    margin-bottom: 16px;
}

.section-header.light .section-tag {
    background: rgba(255,255,255,0.15);
    color: rgba(255,255,255,0.9);
}

.section-header h2 {
    font-size: clamp(28px, 4vw, 42px);
    font-weight: 800;
    line-height: 1.2;
    margin-bottom: 16px;
    letter-spacing: -0.02em;
}

.section-header.light h2 { color: var(--white); }

.section-header p {
    font-size: 18px;
    color: var(--text-muted);
    max-width: 560px;
    margin: 0 auto;
    line-height: 1.7;
}

.section-header.light p { color: rgba(255,255,255,0.75); }

/* === Buttons === */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 14px 28px;
    border-radius: var(--radius-md);
    font-size: 15px;
    font-weight: 600;
    cursor: pointer;
    border: none;
    transition: var(--transition);
    white-space: nowrap;
    text-decoration: none;
}

.btn-primary {
    background: var(--gradient-primary);
    color: var(--white);
    box-shadow: var(--shadow-blue);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 12px 40px rgba(0, 87, 255, 0.4);
}

.btn-outline {
    background: transparent;
    color: var(--primary);
    border: 2px solid var(--primary);
}

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

.btn-white {
    background: var(--white);
    color: var(--primary);
    font-weight: 700;
}

.btn-white:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 24px rgba(0,0,0,0.15);
}

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

/* === Navbar === */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    padding: 16px 0;
    transition: var(--transition);
    background: transparent;
}

.navbar.scrolled {
    background: rgba(10, 14, 26, 0.97);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    padding: 12px 0;
    box-shadow: 0 2px 24px rgba(0,0,0,0.3);
}

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

.nav-brand {
    display: flex;
    align-items: center;
    gap: 10px;
    color: var(--white);
    font-size: 20px;
    font-weight: 800;
    letter-spacing: -0.02em;
}

.brand-icon {
    width: 40px;
    height: 40px;
    background: var(--gradient-primary);
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 18px;
    color: white;
    box-shadow: var(--shadow-blue);
}

.brand-suffix {
    font-weight: 400;
    opacity: 0.7;
    font-size: 16px;
}

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

.nav-links a {
    color: rgba(255,255,255,0.8);
    font-size: 15px;
    font-weight: 500;
    padding: 8px 16px;
    border-radius: var(--radius-sm);
    transition: var(--transition);
}

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

.btn-nav {
    background: var(--gradient-primary) !important;
    color: var(--white) !important;
    border-radius: var(--radius-md) !important;
    box-shadow: var(--shadow-blue);
}

.btn-nav:hover {
    transform: translateY(-1px);
    box-shadow: 0 8px 24px rgba(0, 87, 255, 0.4) !important;
}

.hamburger {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 8px;
}

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

/* === Hero === */
.hero {
    background: var(--gradient-dark);
    min-height: 100vh;
    display: flex;
    align-items: center;
    position: relative;
    overflow: hidden;
    padding: 120px 0 80px;
}

.hero-bg-grid {
    position: absolute;
    inset: 0;
    background-image: 
        linear-gradient(rgba(0, 87, 255, 0.05) 1px, transparent 1px),
        linear-gradient(90deg, rgba(0, 87, 255, 0.05) 1px, transparent 1px);
    background-size: 60px 60px;
    opacity: 0.6;
}

.hero::before {
    content: '';
    position: absolute;
    top: -30%;
    right: -10%;
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, rgba(0, 87, 255, 0.2) 0%, transparent 70%);
    pointer-events: none;
}

.hero::after {
    content: '';
    position: absolute;
    bottom: -20%;
    left: -10%;
    width: 500px;
    height: 500px;
    background: radial-gradient(circle, rgba(0, 194, 255, 0.15) 0%, transparent 70%);
    pointer-events: none;
}

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

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 8px 18px;
    background: rgba(0, 87, 255, 0.2);
    border: 1px solid rgba(0, 87, 255, 0.4);
    border-radius: 100px;
    color: var(--secondary);
    font-size: 13px;
    font-weight: 600;
    margin-bottom: 28px;
    letter-spacing: 0.02em;
}

.hero-title {
    font-size: clamp(36px, 5vw, 64px);
    font-weight: 800;
    line-height: 1.1;
    letter-spacing: -0.03em;
    color: var(--white);
    margin-bottom: 24px;
}

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

.hero-subtitle {
    font-size: 18px;
    color: rgba(255,255,255,0.7);
    line-height: 1.7;
    margin-bottom: 40px;
    max-width: 500px;
}

.hero-cta {
    display: flex;
    gap: 16px;
    margin-bottom: 48px;
    flex-wrap: wrap;
}

.hero-stats {
    display: flex;
    gap: 0;
    align-items: center;
    background: rgba(255,255,255,0.05);
    border: 1px solid rgba(255,255,255,0.1);
    border-radius: var(--radius-lg);
    padding: 20px 28px;
    backdrop-filter: blur(10px);
}

.stat {
    display: flex;
    align-items: center;
    gap: 14px;
    flex: 1;
}

.stat-icon {
    width: 40px;
    height: 40px;
    background: rgba(0, 87, 255, 0.2);
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--secondary);
    font-size: 18px;
    flex-shrink: 0;
}

.stat strong {
    display: block;
    color: var(--white);
    font-size: 14px;
    font-weight: 700;
}

.stat small {
    color: rgba(255,255,255,0.5);
    font-size: 12px;
}

.stat-divider {
    width: 1px;
    height: 40px;
    background: rgba(255,255,255,0.1);
    margin: 0 20px;
}

/* Hero Visual */
.hero-visual {
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
    height: 420px;
}

.orbit-ring {
    position: absolute;
    border-radius: 50%;
    border: 1px dashed rgba(0, 87, 255, 0.3);
    animation: rotate 20s linear infinite;
}

.ring-1 {
    width: 280px;
    height: 280px;
    animation-duration: 25s;
}

.ring-2 {
    width: 380px;
    height: 380px;
    animation-direction: reverse;
    animation-duration: 35s;
}

@keyframes rotate {
    from { transform: rotate(0deg); }
    to { transform: rotate(360deg); }
}

.center-icon {
    width: 100px;
    height: 100px;
    background: var(--gradient-primary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 44px;
    color: white;
    box-shadow: var(--shadow-blue), 0 0 60px rgba(0, 87, 255, 0.4);
    z-index: 2;
    animation: pulse-glow 3s ease-in-out infinite;
}

@keyframes pulse-glow {
    0%, 100% { box-shadow: var(--shadow-blue), 0 0 40px rgba(0, 87, 255, 0.3); }
    50% { box-shadow: var(--shadow-blue), 0 0 80px rgba(0, 87, 255, 0.6); }
}

.tech-card {
    position: absolute;
    display: flex;
    align-items: center;
    gap: 10px;
    background: rgba(255,255,255,0.06);
    border: 1px solid rgba(255,255,255,0.12);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-radius: var(--radius-md);
    padding: 12px 18px;
    color: white;
    font-size: 13px;
    font-weight: 600;
    white-space: nowrap;
    transition: var(--transition);
}

.tech-card:hover {
    background: rgba(0, 87, 255, 0.2);
    border-color: rgba(0, 87, 255, 0.5);
    transform: scale(1.05);
}

.tech-card i {
    font-size: 20px;
    color: var(--secondary);
}

.card-1 { top: 20px; left: 10px; animation: float 4s ease-in-out infinite; }
.card-2 { top: 20px; right: 10px; animation: float 4s ease-in-out infinite 1s; }
.card-3 { bottom: 20px; left: 10px; animation: float 4s ease-in-out infinite 2s; }
.card-4 { bottom: 20px; right: 10px; animation: float 4s ease-in-out infinite 3s; }

@keyframes float {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-10px); }
}

/* === Services === */
.services {
    padding: 100px 0;
    background: var(--gray-100);
}

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

.service-card {
    background: var(--white);
    border-radius: var(--radius-lg);
    padding: 36px 30px;
    transition: var(--transition);
    border: 1px solid var(--gray-200);
    position: relative;
    overflow: hidden;
}

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

.service-card:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-lg);
    border-color: transparent;
}

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

.service-card.featured {
    background: var(--gradient-dark);
    color: white;
    border-color: transparent;
    grid-row: span 1;
}

.service-card.featured::before {
    opacity: 1;
    background: var(--gradient-primary);
}

.service-card.featured .service-icon {
    background: rgba(0, 87, 255, 0.3);
    color: var(--secondary);
}

.service-card.featured h3 {
    color: var(--white);
}

.service-card.featured p {
    color: rgba(255,255,255,0.7);
}

.service-card.featured .service-list li {
    color: rgba(255,255,255,0.8);
}

.service-card.featured .service-list i {
    color: var(--secondary);
}

.service-icon {
    width: 60px;
    height: 60px;
    background: rgba(0, 87, 255, 0.1);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 26px;
    color: var(--primary);
    margin-bottom: 24px;
    transition: var(--transition);
}

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

.service-card.featured:hover .service-icon {
    background: rgba(0, 87, 255, 0.4);
}

.service-card h3 {
    font-size: 20px;
    font-weight: 700;
    margin-bottom: 14px;
    color: var(--text-primary);
    letter-spacing: -0.01em;
    hyphens: auto;
}

.service-card p {
    font-size: 14px;
    color: var(--text-muted);
    line-height: 1.7;
    margin-bottom: 20px;
}

.service-list {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.service-list li {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 13px;
    color: var(--text-secondary);
}

.service-list i {
    color: var(--primary);
    font-size: 12px;
    flex-shrink: 0;
}

/* === About === */
.about {
    padding: 100px 0;
    background: var(--white);
}

.about-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 80px;
    align-items: center;
}

.about-visual {
    position: relative;
}

.about-map {
    background: var(--gradient-dark);
    border-radius: var(--radius-xl);
    padding: 60px 40px;
    text-align: center;
    position: relative;
    overflow: hidden;
    min-height: 380px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 24px;
    box-shadow: var(--shadow-lg);
}

.map-point {
    position: relative;
    z-index: 2;
}

.main-point {
    font-size: 48px;
    color: var(--primary);
    filter: drop-shadow(0 0 16px rgba(0, 87, 255, 0.6));
    animation: bounce 2s ease-in-out infinite;
}

@keyframes bounce {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-8px); }
}

.map-tooltip {
    background: var(--white);
    color: var(--primary);
    font-size: 12px;
    font-weight: 700;
    padding: 4px 12px;
    border-radius: 100px;
    margin-top: 8px;
    display: inline-block;
}

.coverage-circles {
    position: absolute;
    inset: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    pointer-events: none;
}

.circle {
    position: absolute;
    border-radius: 50%;
    border: 1px solid rgba(0, 87, 255, 0.2);
    animation: expand 3s ease-out infinite;
}

.c1 { width: 100px; height: 100px; animation-delay: 0s; }
.c2 { width: 200px; height: 200px; animation-delay: 1s; }
.c3 { width: 320px; height: 320px; animation-delay: 2s; }

@keyframes expand {
    0% { opacity: 0.6; }
    100% { opacity: 0; transform: scale(1.2); }
}

.map-countries {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    justify-content: center;
    z-index: 2;
}

.country-tag {
    padding: 6px 14px;
    background: rgba(255,255,255,0.1);
    border: 1px solid rgba(255,255,255,0.15);
    border-radius: 100px;
    color: rgba(255,255,255,0.85);
    font-size: 13px;
    font-weight: 500;
}

.about-content h2 {
    font-size: clamp(26px, 3.5vw, 38px);
    font-weight: 800;
    line-height: 1.2;
    letter-spacing: -0.02em;
    color: var(--text-primary);
    margin-bottom: 20px;
}

.about-content p {
    font-size: 16px;
    color: var(--text-muted);
    line-height: 1.8;
    margin-bottom: 16px;
}

.about-values {
    display: flex;
    flex-direction: column;
    gap: 20px;
    margin-top: 32px;
}

.value-item {
    display: flex;
    align-items: flex-start;
    gap: 16px;
    padding: 20px;
    background: var(--gray-100);
    border-radius: var(--radius-md);
    transition: var(--transition);
}

.value-item:hover {
    background: rgba(0, 87, 255, 0.05);
    border-left: 3px solid var(--primary);
}

.value-icon {
    width: 44px;
    height: 44px;
    background: var(--gradient-primary);
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 18px;
    flex-shrink: 0;
}

.value-item strong {
    display: block;
    font-size: 15px;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 4px;
}

.value-item span {
    font-size: 13px;
    color: var(--text-muted);
    line-height: 1.5;
}

/* === Benefits === */
.benefits {
    padding: 100px 0;
    background: var(--gradient-dark);
    position: relative;
    overflow: hidden;
}

.benefits::before {
    content: '';
    position: absolute;
    inset: 0;
    background-image: 
        linear-gradient(rgba(0, 87, 255, 0.04) 1px, transparent 1px),
        linear-gradient(90deg, rgba(0, 87, 255, 0.04) 1px, transparent 1px);
    background-size: 60px 60px;
}

.benefits-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 28px;
    position: relative;
}

.benefit-item {
    background: rgba(255,255,255,0.04);
    border: 1px solid rgba(255,255,255,0.08);
    border-radius: var(--radius-lg);
    padding: 36px 28px;
    transition: var(--transition);
    position: relative;
}

.benefit-item:hover {
    background: rgba(0, 87, 255, 0.12);
    border-color: rgba(0, 87, 255, 0.4);
    transform: translateY(-4px);
}

.benefit-number {
    font-size: 48px;
    font-weight: 800;
    color: rgba(255,255,255,0.05);
    line-height: 1;
    margin-bottom: 16px;
    letter-spacing: -0.03em;
}

.benefit-icon {
    width: 52px;
    height: 52px;
    background: rgba(0, 87, 255, 0.2);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--secondary);
    font-size: 22px;
    margin-bottom: 20px;
    transition: var(--transition);
}

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

.benefit-item h3 {
    font-size: 18px;
    font-weight: 700;
    color: var(--white);
    margin-bottom: 12px;
}

.benefit-item p {
    font-size: 14px;
    color: rgba(255,255,255,0.6);
    line-height: 1.7;
}

/* === CTA Banner === */
.cta-banner {
    padding: 80px 0;
    background: var(--gradient-primary);
    text-align: center;
    position: relative;
    overflow: hidden;
}

.cta-banner::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -20%;
    width: 400px;
    height: 400px;
    background: radial-gradient(circle, rgba(255,255,255,0.15) 0%, transparent 70%);
}

.cta-banner::after {
    content: '';
    position: absolute;
    bottom: -50%;
    right: -10%;
    width: 350px;
    height: 350px;
    background: radial-gradient(circle, rgba(0,0,0,0.1) 0%, transparent 70%);
}

.cta-content {
    position: relative;
    z-index: 1;
}

.cta-content h2 {
    font-size: clamp(28px, 4vw, 44px);
    font-weight: 800;
    color: var(--white);
    margin-bottom: 16px;
    letter-spacing: -0.02em;
}

.cta-content p {
    font-size: 18px;
    color: rgba(255,255,255,0.85);
    margin-bottom: 36px;
    max-width: 560px;
    margin-left: auto;
    margin-right: auto;
}

/* === Contact === */
.contact {
    padding: 100px 0;
    background: var(--gray-100);
}

.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1.4fr;
    gap: 48px;
}

.contact-card {
    background: var(--white);
    border-radius: var(--radius-xl);
    padding: 40px;
    display: flex;
    flex-direction: column;
    gap: 0;
    box-shadow: var(--shadow-md);
    height: 100%;
}

.contact-item {
    display: flex;
    align-items: flex-start;
    gap: 20px;
    padding: 24px 0;
    border-bottom: 1px solid var(--gray-100);
}

.contact-item:last-child {
    border-bottom: none;
    padding-bottom: 0;
}

.contact-item:first-child {
    padding-top: 0;
}

.contact-icon {
    width: 48px;
    height: 48px;
    background: rgba(0, 87, 255, 0.1);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--primary);
    font-size: 20px;
    flex-shrink: 0;
}

.contact-details strong {
    display: block;
    font-size: 13px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--text-muted);
    margin-bottom: 8px;
}

.contact-details span,
.contact-details p {
    display: block;
    font-size: 15px;
    color: var(--text-secondary);
    line-height: 1.6;
}

.contact-details a {
    color: var(--primary);
    font-size: 15px;
    font-weight: 500;
    transition: var(--transition);
}

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

/* Contact Form */
.contact-form-wrapper {
    background: var(--white);
    border-radius: var(--radius-xl);
    padding: 44px;
    box-shadow: var(--shadow-md);
}

.contact-form h3 {
    font-size: 22px;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 32px;
}

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

.form-group {
    display: flex;
    flex-direction: column;
    gap: 8px;
    margin-bottom: 20px;
}

.form-group label {
    font-size: 13px;
    font-weight: 600;
    color: var(--text-secondary);
    letter-spacing: 0.02em;
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 13px 16px;
    border: 1.5px solid var(--gray-200);
    border-radius: var(--radius-md);
    font-family: var(--font);
    font-size: 15px;
    color: var(--text-primary);
    background: var(--white);
    transition: var(--transition);
    outline: none;
    appearance: none;
    -webkit-appearance: none;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(0, 87, 255, 0.1);
}

.form-group input::placeholder,
.form-group textarea::placeholder {
    color: var(--gray-400);
}

.form-group textarea {
    resize: vertical;
    min-height: 120px;
}

.form-group select {
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'%3E%3Cpath d='M1 1l5 5 5-5' stroke='%236B7280' stroke-width='1.5' fill='none' stroke-linecap='round'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 16px center;
    padding-right: 44px;
    cursor: pointer;
}

.form-success {
    display: none;
    align-items: center;
    gap: 12px;
    padding: 16px 20px;
    background: rgba(16, 185, 129, 0.1);
    border: 1px solid rgba(16, 185, 129, 0.3);
    border-radius: var(--radius-md);
    color: #059669;
    font-weight: 600;
    font-size: 14px;
    margin-top: 16px;
}

.form-success.visible {
    display: flex;
}

/* === Footer === */
.footer {
    background: var(--dark);
    padding: 64px 0 0;
    color: rgba(255,255,255,0.6);
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1.5fr;
    gap: 48px;
    padding-bottom: 48px;
    border-bottom: 1px solid rgba(255,255,255,0.08);
}

.footer-brand .nav-brand {
    margin-bottom: 16px;
}

.footer-brand p {
    font-size: 14px;
    line-height: 1.7;
    color: rgba(255,255,255,0.5);
}

.footer h4 {
    font-size: 14px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--white);
    margin-bottom: 20px;
}

.footer-links ul,
.footer-services ul {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.footer-links li a {
    color: rgba(255,255,255,0.55);
    font-size: 14px;
    transition: var(--transition);
}

.footer-links li a:hover {
    color: var(--white);
}

.footer-services li {
    font-size: 14px;
    color: rgba(255,255,255,0.5);
}

.footer-contact address p {
    display: flex;
    align-items: flex-start;
    gap: 10px;
    font-size: 14px;
    margin-bottom: 10px;
    color: rgba(255,255,255,0.55);
}

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

.footer-contact address a {
    color: rgba(255,255,255,0.55);
    transition: var(--transition);
}

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

.footer-bottom {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 24px 0;
    font-size: 13px;
    color: rgba(255,255,255,0.35);
}

/* === Back to Top === */
.back-to-top {
    position: fixed;
    bottom: 32px;
    right: 32px;
    width: 48px;
    height: 48px;
    background: var(--gradient-primary);
    color: white;
    border: none;
    border-radius: 50%;
    cursor: pointer;
    font-size: 18px;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: var(--shadow-blue);
    transition: var(--transition);
    opacity: 0;
    visibility: hidden;
    z-index: 999;
}

.back-to-top.visible {
    opacity: 1;
    visibility: visible;
}

.back-to-top:hover {
    transform: translateY(-3px);
    box-shadow: 0 12px 32px rgba(0, 87, 255, 0.5);
}

/* === Animations === */
.fade-in {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

.fade-in.visible {
    opacity: 1;
    transform: translateY(0);
}

/* === Responsive === */
@media (max-width: 1024px) {
    .hero .container {
        grid-template-columns: 1fr;
        gap: 60px;
        text-align: center;
    }

    .hero-subtitle { margin: 0 auto 40px; }
    .hero-cta { justify-content: center; }
    .hero-stats { max-width: 560px; margin: 0 auto; }
    .hero-visual { display: none; }

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

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

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

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

@media (max-width: 768px) {
    .navbar .container { position: relative; }

    .nav-links {
        position: fixed;
        top: 0;
        right: -100%;
        height: 100vh;
        width: 280px;
        background: var(--dark);
        flex-direction: column;
        align-items: flex-start;
        padding: 100px 32px 32px;
        transition: right 0.4s cubic-bezier(0.4, 0, 0.2, 1);
        box-shadow: -10px 0 40px rgba(0,0,0,0.3);
        z-index: 999;
    }

    .nav-links.open { right: 0; }

    .nav-links a {
        font-size: 16px;
        width: 100%;
    }

    .hamburger { display: flex; z-index: 1001; }

    .hamburger.active span:nth-child(1) {
        transform: translateY(7px) rotate(45deg);
    }
    .hamburger.active span:nth-child(2) { opacity: 0; }
    .hamburger.active span:nth-child(3) {
        transform: translateY(-7px) rotate(-45deg);
    }

    .hero {
        padding: 100px 0 60px;
    }

    .hero-stats {
        flex-direction: column;
        gap: 0;
    }

    .stat-divider {
        width: 100%;
        height: 1px;
        margin: 12px 0;
    }

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

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

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

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

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

    .footer-bottom {
        flex-direction: column;
        gap: 8px;
        text-align: center;
    }

    .about-grid { gap: 40px; }
    .contact-form-wrapper { padding: 28px 24px; }
    .contact-card { padding: 28px 24px; }
}

@media (max-width: 480px) {
    .hero-cta {
        flex-direction: column;
    }

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

    .hero-badge {
        font-size: 11px;
    }

    .back-to-top {
        bottom: 20px;
        right: 20px;
    }
}