/* ========================================
   Mobile SIM Landing Page - Styles
   Trust-Building Colors + Glassmorphism
   ======================================== */

/* CSS Custom Properties */
:root {
    /* Trust-Building Color Palette */
    --color-primary: #0A1628;
    --color-primary-light: #1A2D4A;
    --color-secondary: #00D4AA;
    --color-secondary-dark: #00B894;
    --color-accent: #FFD700;
    --color-trust-blue: #2563EB;
    --color-trust-blue-light: #3B82F6;

    /* Neutral Colors */
    --color-white: #FFFFFF;
    --color-gray-100: #F8FAFC;
    --color-gray-200: #E2E8F0;
    --color-gray-300: #CBD5E1;
    --color-gray-400: #94A3B8;
    --color-gray-500: #64748B;
    --color-gray-600: #475569;

    /* Glassmorphism */
    --glass-bg: rgba(255, 255, 255, 0.08);
    --glass-bg-hover: rgba(255, 255, 255, 0.12);
    --glass-border: rgba(255, 255, 255, 0.15);
    --glass-shadow: 0 8px 32px rgba(0, 0, 0, 0.3);
    --glass-blur: blur(20px);

    /* Typography */
    --font-primary: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    --font-display: 'Outfit', var(--font-primary);

    /* 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;

    /* Border Radius */
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 20px;
    --radius-xl: 28px;
    --radius-full: 9999px;

    /* Transitions */
    --transition-fast: 150ms ease;
    --transition-base: 250ms ease;
    --transition-slow: 400ms ease;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-primary);
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-light) 50%, #0D2137 100%);
    color: var(--color-white);
    line-height: 1.6;
    min-height: 100vh;
    overflow-x: hidden;
}

/* Animated Background */
body::before {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background:
        radial-gradient(ellipse at 20% 20%, rgba(0, 212, 170, 0.15) 0%, transparent 50%),
        radial-gradient(ellipse at 80% 80%, rgba(37, 99, 235, 0.1) 0%, transparent 50%),
        radial-gradient(ellipse at 50% 50%, rgba(255, 215, 0, 0.05) 0%, transparent 60%);
    pointer-events: none;
    z-index: -1;
}

/* Typography */
h1,
h2,
h3,
h4,
h5,
h6 {
    font-family: var(--font-display);
    font-weight: 700;
    line-height: 1.2;
}

h1 {
    font-size: clamp(2.5rem, 5vw, 4rem);
}

h2 {
    font-size: clamp(2rem, 4vw, 3rem);
}

h3 {
    font-size: clamp(1.5rem, 3vw, 2rem);
}

h4 {
    font-size: clamp(1.25rem, 2vw, 1.5rem);
}

p {
    color: var(--color-gray-300);
}

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

/* Container */
.container {
    width: 100%;
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 var(--space-lg);
}

/* Glassmorphism Card */
.glass-card {
    background: var(--glass-bg);
    backdrop-filter: var(--glass-blur);
    -webkit-backdrop-filter: var(--glass-blur);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-lg);
    box-shadow: var(--glass-shadow);
    transition: all var(--transition-base);
}

.glass-card:hover {
    background: var(--glass-bg-hover);
    transform: translateY(-4px);
    box-shadow: 0 12px 40px rgba(0, 212, 170, 0.15);
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-sm);
    padding: var(--space-md) var(--space-xl);
    font-family: var(--font-primary);
    font-size: 1rem;
    font-weight: 600;
    border: none;
    border-radius: var(--radius-full);
    cursor: pointer;
    transition: all var(--transition-base);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.btn-primary {
    background: linear-gradient(135deg, var(--color-secondary) 0%, var(--color-secondary-dark) 100%);
    color: var(--color-primary);
    box-shadow: 0 4px 20px rgba(0, 212, 170, 0.4);
}

.btn-primary:hover {
    transform: translateY(-2px) scale(1.02);
    box-shadow: 0 8px 30px rgba(0, 212, 170, 0.5);
}

.btn-secondary {
    background: transparent;
    color: var(--color-white);
    border: 2px solid var(--glass-border);
    backdrop-filter: var(--glass-blur);
}

.btn-secondary:hover {
    background: var(--glass-bg);
    border-color: var(--color-secondary);
    color: var(--color-secondary);
}

.btn-gold {
    background: linear-gradient(135deg, var(--color-accent) 0%, #FFA500 100%);
    color: var(--color-primary);
    box-shadow: 0 4px 20px rgba(255, 215, 0, 0.3);
}

.btn-gold:hover {
    transform: translateY(-2px) scale(1.02);
    box-shadow: 0 8px 30px rgba(255, 215, 0, 0.4);
}

/* ========================================
   Navigation
   ======================================== */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    padding: var(--space-md) 0;
    background: rgba(10, 22, 40, 0.8);
    backdrop-filter: var(--glass-blur);
    -webkit-backdrop-filter: var(--glass-blur);
    border-bottom: 1px solid var(--glass-border);
}

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

.logo {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    font-family: var(--font-display);
    font-size: 1.5rem;
    font-weight: 700;
}

.logo-icon {
    width: 40px;
    height: 40px;
    background: linear-gradient(135deg, var(--color-secondary), var(--color-trust-blue));
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
}

.nav-links {
    display: flex;
    align-items: center;
    gap: var(--space-xl);
    list-style: none;
}

.nav-links a {
    font-weight: 500;
    color: var(--color-gray-300);
    position: relative;
}

.nav-links a::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--color-secondary);
    transition: width var(--transition-base);
}

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

.nav-links a:hover::after {
    width: 100%;
}

.nav-cta {
    display: flex;
    align-items: center;
    gap: var(--space-md);
}

.mobile-menu-btn {
    display: none;
    background: none;
    border: none;
    color: var(--color-white);
    cursor: pointer;
    padding: var(--space-sm);
}

/* ========================================
   Hero Section
   ======================================== */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding: var(--space-4xl) 0;
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 50%;
    right: -20%;
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, rgba(0, 212, 170, 0.2) 0%, transparent 70%);
    border-radius: 50%;
    animation: pulse 4s ease-in-out infinite;
}

@keyframes pulse {

    0%,
    100% {
        transform: translate(0, -50%) scale(1);
        opacity: 0.5;
    }

    50% {
        transform: translate(0, -50%) scale(1.1);
        opacity: 0.8;
    }
}

.hero .container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-4xl);
    align-items: center;
}

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

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: var(--space-sm);
    padding: var(--space-sm) var(--space-md);
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-full);
    font-size: 0.875rem;
    color: var(--color-secondary);
    margin-bottom: var(--space-lg);
    backdrop-filter: var(--glass-blur);
}

.hero-badge::before {
    content: '';
    width: 8px;
    height: 8px;
    background: var(--color-secondary);
    border-radius: 50%;
    animation: blink 1.5s ease-in-out infinite;
}

@keyframes blink {

    0%,
    100% {
        opacity: 1;
    }

    50% {
        opacity: 0.3;
    }
}

.hero h1 {
    margin-bottom: var(--space-lg);
    background: linear-gradient(135deg, var(--color-white) 0%, var(--color-gray-300) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero h1 span {
    background: linear-gradient(135deg, var(--color-secondary) 0%, var(--color-trust-blue) 100%);
    -webkit-background-clip: text;
    background-clip: text;
}

.hero-description {
    font-size: 1.25rem;
    color: var(--color-gray-400);
    margin-bottom: var(--space-2xl);
    max-width: 520px;
}

.hero-cta {
    display: flex;
    gap: var(--space-md);
    margin-bottom: var(--space-2xl);
}

.hero-stats {
    display: flex;
    gap: var(--space-2xl);
}

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

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

.stat-label {
    font-size: 0.875rem;
    color: var(--color-gray-500);
}

.hero-visual {
    position: relative;
    display: flex;
    justify-content: center;
    align-items: center;
}

.phone-mockup {
    position: relative;
    width: 300px;
    height: 600px;
    background: linear-gradient(145deg, #1a1a2e 0%, #16213e 100%);
    border-radius: 40px;
    border: 3px solid var(--glass-border);
    box-shadow:
        0 50px 100px rgba(0, 0, 0, 0.5),
        inset 0 0 30px rgba(255, 255, 255, 0.05);
    overflow: hidden;
}

.phone-screen {
    position: absolute;
    inset: 12px;
    background: linear-gradient(180deg, var(--color-primary-light) 0%, var(--color-primary) 100%);
    border-radius: 32px;
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: var(--space-xl);
}

.phone-notch {
    width: 120px;
    height: 25px;
    background: #000;
    border-radius: 0 0 15px 15px;
    margin-bottom: var(--space-xl);
}

.sim-card-visual {
    width: 80px;
    height: 60px;
    background: linear-gradient(135deg, var(--color-accent) 0%, #FFA500 100%);
    border-radius: 8px;
    margin: var(--space-xl) 0;
    position: relative;
    box-shadow: 0 10px 30px rgba(255, 215, 0, 0.3);
}

.sim-card-visual::before {
    content: '';
    position: absolute;
    top: 10px;
    left: 10px;
    width: 35px;
    height: 25px;
    background: linear-gradient(135deg, #C0C0C0, #E8E8E8);
    border-radius: 4px;
}

.signal-bars {
    display: flex;
    gap: 4px;
    align-items: flex-end;
    margin-top: auto;
}

.signal-bars span {
    width: 8px;
    background: var(--color-secondary);
    border-radius: 2px;
}

.signal-bars span:nth-child(1) {
    height: 12px;
}

.signal-bars span:nth-child(2) {
    height: 20px;
}

.signal-bars span:nth-child(3) {
    height: 28px;
}

.signal-bars span:nth-child(4) {
    height: 36px;
}

.floating-element {
    position: absolute;
    background: var(--glass-bg);
    backdrop-filter: var(--glass-blur);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-md);
    padding: var(--space-md);
    animation: float 3s ease-in-out infinite;
}

.floating-element.fe-1 {
    top: 10%;
    right: -20px;
    animation-delay: 0s;
}

.floating-element.fe-2 {
    bottom: 20%;
    left: -30px;
    animation-delay: 1s;
}

@keyframes float {

    0%,
    100% {
        transform: translateY(0);
    }

    50% {
        transform: translateY(-10px);
    }
}

/* ========================================
   Section Common
   ======================================== */
section {
    padding: var(--space-4xl) 0;
}

.section-header {
    text-align: center;
    max-width: 700px;
    margin: 0 auto var(--space-3xl);
}

.section-label {
    display: inline-block;
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--color-secondary);
    text-transform: uppercase;
    letter-spacing: 2px;
    margin-bottom: var(--space-md);
}

.section-title {
    margin-bottom: var(--space-md);
}

.section-description {
    font-size: 1.125rem;
}

/* ========================================
   SIM Plans Section
   ======================================== */
.plans-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-xl);
}

.plan-card {
    padding: var(--space-2xl);
    text-align: center;
    position: relative;
    overflow: hidden;
}

.plan-card.featured {
    border-color: var(--color-secondary);
    transform: scale(1.05);
}

.plan-card.featured::before {
    content: 'MOST POPULAR';
    position: absolute;
    top: 20px;
    right: -35px;
    background: linear-gradient(135deg, var(--color-secondary), var(--color-secondary-dark));
    color: var(--color-primary);
    font-size: 0.7rem;
    font-weight: 700;
    padding: 6px 40px;
    transform: rotate(45deg);
}

.plan-icon {
    width: 70px;
    height: 70px;
    margin: 0 auto var(--space-lg);
    background: linear-gradient(135deg, rgba(0, 212, 170, 0.2), rgba(37, 99, 235, 0.2));
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
}

.plan-icon svg {
    width: 36px;
    height: 36px;
    stroke: var(--color-secondary);
}

.plan-name {
    font-size: 1.5rem;
    margin-bottom: var(--space-sm);
}

.plan-price {
    margin-bottom: var(--space-lg);
}

.plan-price .amount {
    font-family: var(--font-display);
    font-size: 3rem;
    font-weight: 700;
    color: var(--color-white);
}

.plan-price .currency {
    font-size: 1.5rem;
    color: var(--color-gray-400);
}

.plan-price .period {
    font-size: 1rem;
    color: var(--color-gray-500);
}

.plan-features {
    list-style: none;
    margin-bottom: var(--space-xl);
    text-align: left;
}

.plan-features li {
    padding: var(--space-sm) 0;
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    color: var(--color-gray-300);
    border-bottom: 1px solid var(--glass-border);
}

.plan-features li:last-child {
    border-bottom: none;
}

.plan-features .check {
    width: 20px;
    height: 20px;
    background: rgba(0, 212, 170, 0.2);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.plan-features .check svg {
    width: 12px;
    height: 12px;
    stroke: var(--color-secondary);
}

.plan-savings {
    background: linear-gradient(135deg, rgba(255, 215, 0, 0.2), rgba(255, 165, 0, 0.1));
    border: 1px solid rgba(255, 215, 0, 0.3);
    color: var(--color-accent);
    font-size: 0.875rem;
    font-weight: 600;
    padding: var(--space-xs) var(--space-md);
    border-radius: var(--radius-full);
    margin-bottom: var(--space-lg);
    display: inline-block;
}

.plan-card .btn {
    width: 100%;
}

/* ========================================
   Upsell Section
   ======================================== */
.upsell {
    background: linear-gradient(135deg, rgba(255, 215, 0, 0.05) 0%, rgba(255, 165, 0, 0.05) 100%);
    border-top: 1px solid rgba(255, 215, 0, 0.1);
    border-bottom: 1px solid rgba(255, 215, 0, 0.1);
}

.upsell-banner {
    text-align: center;
    padding: var(--space-xl);
    background: linear-gradient(135deg, rgba(255, 215, 0, 0.1), rgba(255, 165, 0, 0.05));
    border: 1px solid rgba(255, 215, 0, 0.2);
    border-radius: var(--radius-lg);
    margin-bottom: var(--space-2xl);
}

.upsell-banner .timer {
    font-family: var(--font-display);
    font-size: 1.5rem;
    color: var(--color-accent);
    margin-top: var(--space-md);
}

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

.upsell-card {
    padding: var(--space-xl);
    text-align: center;
    border-color: rgba(255, 215, 0, 0.2);
}

.upsell-card:hover {
    border-color: var(--color-accent);
    box-shadow: 0 12px 40px rgba(255, 215, 0, 0.15);
}

.upsell-icon {
    width: 60px;
    height: 60px;
    margin: 0 auto var(--space-lg);
    background: linear-gradient(135deg, rgba(255, 215, 0, 0.2), rgba(255, 165, 0, 0.1));
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
}

.upsell-icon svg {
    width: 30px;
    height: 30px;
    stroke: var(--color-accent);
}

.upsell-title {
    font-size: 1.25rem;
    margin-bottom: var(--space-sm);
}

.upsell-price {
    font-family: var(--font-display);
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--color-accent);
    margin-bottom: var(--space-md);
}

.upsell-description {
    font-size: 0.9rem;
    margin-bottom: var(--space-lg);
}

/* ========================================
   Trust Indicators Section
   ======================================== */
.trust-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--space-xl);
    margin-bottom: var(--space-3xl);
}

.trust-item {
    padding: var(--space-xl);
    text-align: center;
}

.trust-icon {
    width: 70px;
    height: 70px;
    margin: 0 auto var(--space-lg);
    background: linear-gradient(135deg, rgba(37, 99, 235, 0.2), rgba(59, 130, 246, 0.1));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
}

.trust-icon svg {
    width: 36px;
    height: 36px;
    stroke: var(--color-trust-blue-light);
}

.trust-title {
    font-size: 1.125rem;
    margin-bottom: var(--space-sm);
}

.trust-description {
    font-size: 0.9rem;
}

/* Stats Row */
.stats-row {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--space-xl);
    padding: var(--space-2xl);
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-xl);
    backdrop-filter: var(--glass-blur);
    margin-bottom: var(--space-3xl);
}

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

.stats-number {
    font-family: var(--font-display);
    font-size: 2.5rem;
    font-weight: 700;
    background: linear-gradient(135deg, var(--color-secondary), var(--color-trust-blue));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.stats-label {
    color: var(--color-gray-400);
    font-size: 0.9rem;
}

/* Reviews */
.reviews-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-xl);
}

.review-card {
    padding: var(--space-xl);
}

.review-stars {
    display: flex;
    gap: 4px;
    margin-bottom: var(--space-md);
}

.review-stars svg {
    width: 20px;
    height: 20px;
    fill: var(--color-accent);
}

.review-text {
    font-size: 1rem;
    font-style: italic;
    margin-bottom: var(--space-lg);
    color: var(--color-gray-300);
}

.review-author {
    display: flex;
    align-items: center;
    gap: var(--space-md);
}

.author-avatar {
    width: 48px;
    height: 48px;
    background: linear-gradient(135deg, var(--color-secondary), var(--color-trust-blue));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 1.25rem;
}

.author-info .name {
    font-weight: 600;
    color: var(--color-white);
}

.author-info .location {
    font-size: 0.875rem;
    color: var(--color-gray-500);
}

/* ========================================
   eSIM Tutorial Section
   ======================================== */
.tutorial {
    background: linear-gradient(180deg, transparent 0%, rgba(0, 212, 170, 0.03) 50%, transparent 100%);
}

.tutorial-steps {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--space-xl);
    margin-bottom: var(--space-3xl);
    position: relative;
}

.tutorial-steps::before {
    content: '';
    position: absolute;
    top: 50px;
    left: 12.5%;
    right: 12.5%;
    height: 2px;
    background: linear-gradient(90deg, var(--color-secondary), var(--color-trust-blue));
    opacity: 0.3;
}

.step-card {
    padding: var(--space-xl);
    text-align: center;
    position: relative;
}

.step-number {
    position: absolute;
    top: -15px;
    left: 50%;
    transform: translateX(-50%);
    width: 40px;
    height: 40px;
    background: linear-gradient(135deg, var(--color-secondary), var(--color-secondary-dark));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 1.125rem;
    color: var(--color-primary);
    box-shadow: 0 4px 15px rgba(0, 212, 170, 0.4);
}

.step-icon {
    width: 80px;
    height: 80px;
    margin: var(--space-lg) auto;
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
}

.step-icon svg {
    width: 40px;
    height: 40px;
    stroke: var(--color-secondary);
}

.step-title {
    font-size: 1.125rem;
    margin-bottom: var(--space-sm);
}

.step-description {
    font-size: 0.9rem;
}

/* FAQ Accordion */
.faq-container {
    max-width: 800px;
    margin: 0 auto;
}

.faq-item {
    margin-bottom: var(--space-md);
    border-radius: var(--radius-md);
    overflow: hidden;
}

.faq-question {
    width: 100%;
    padding: var(--space-lg);
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-md);
    color: var(--color-white);
    font-size: 1rem;
    font-weight: 600;
    text-align: left;
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
    transition: all var(--transition-base);
}

.faq-question:hover {
    background: var(--glass-bg-hover);
}

.faq-question svg {
    width: 24px;
    height: 24px;
    stroke: var(--color-secondary);
    transition: transform var(--transition-base);
}

.faq-item.active .faq-question svg {
    transform: rotate(180deg);
}

.faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height var(--transition-base);
    background: rgba(0, 0, 0, 0.2);
}

.faq-item.active .faq-answer {
    max-height: 200px;
}

.faq-answer p {
    padding: var(--space-lg);
    font-size: 0.95rem;
}

/* ========================================
   Contact Section
   ======================================== */
.contact {
    background: linear-gradient(180deg, transparent 0%, rgba(37, 99, 235, 0.05) 100%);
}

.contact-grid {
    display: grid;
    grid-template-columns: 1.2fr 0.8fr;
    gap: var(--space-3xl);
}

.contact-form-card {
    padding: var(--space-2xl);
}

.form-title {
    font-size: 1.5rem;
    margin-bottom: var(--space-xl);
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-lg);
}

.form-group {
    margin-bottom: var(--space-lg);
}

.form-group label {
    display: block;
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--color-gray-300);
    margin-bottom: var(--space-sm);
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: var(--space-md);
    background: rgba(0, 0, 0, 0.3);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-sm);
    color: var(--color-white);
    font-family: var(--font-primary);
    font-size: 1rem;
    transition: all var(--transition-fast);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--color-secondary);
    box-shadow: 0 0 0 3px rgba(0, 212, 170, 0.1);
}

.form-group input::placeholder,
.form-group textarea::placeholder {
    color: var(--color-gray-500);
}

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

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

.info-card {
    padding: var(--space-xl);
    display: flex;
    align-items: flex-start;
    gap: var(--space-lg);
}

.info-icon {
    width: 50px;
    height: 50px;
    background: linear-gradient(135deg, rgba(0, 212, 170, 0.2), rgba(37, 99, 235, 0.1));
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.info-icon svg {
    width: 24px;
    height: 24px;
    stroke: var(--color-secondary);
}

.info-content h4 {
    font-size: 1.125rem;
    margin-bottom: var(--space-xs);
}

.info-content p {
    font-size: 0.95rem;
}

.info-content a {
    color: var(--color-secondary);
}

.info-content a:hover {
    text-decoration: underline;
}

/* Live Chat Widget */
.chat-widget {
    position: fixed;
    bottom: 30px;
    right: 30px;
    z-index: 999;
}

.chat-btn {
    width: 60px;
    height: 60px;
    background: linear-gradient(135deg, var(--color-secondary), var(--color-secondary-dark));
    border: none;
    border-radius: 50%;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 8px 30px rgba(0, 212, 170, 0.4);
    transition: all var(--transition-base);
}

.chat-btn:hover {
    transform: scale(1.1);
}

.chat-btn svg {
    width: 28px;
    height: 28px;
    stroke: var(--color-primary);
}

.chat-tooltip {
    position: absolute;
    bottom: 70px;
    right: 0;
    background: var(--color-white);
    color: var(--color-primary);
    padding: var(--space-sm) var(--space-md);
    border-radius: var(--radius-sm);
    font-size: 0.875rem;
    font-weight: 500;
    white-space: nowrap;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
    animation: bounce 2s ease-in-out infinite;
}

@keyframes bounce {

    0%,
    100% {
        transform: translateY(0);
    }

    50% {
        transform: translateY(-5px);
    }
}

/* ========================================
   Footer
   ======================================== */
.footer {
    background: rgba(0, 0, 0, 0.3);
    border-top: 1px solid var(--glass-border);
    padding: var(--space-3xl) 0 var(--space-xl);
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr repeat(3, 1fr);
    gap: var(--space-2xl);
    margin-bottom: var(--space-2xl);
}

.footer-brand {
    max-width: 300px;
}

.footer-brand .logo {
    margin-bottom: var(--space-lg);
}

.footer-brand p {
    font-size: 0.95rem;
    margin-bottom: var(--space-lg);
}

.social-links {
    display: flex;
    gap: var(--space-md);
}

.social-links a {
    width: 40px;
    height: 40px;
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all var(--transition-base);
}

.social-links a:hover {
    background: var(--color-secondary);
    border-color: var(--color-secondary);
}

.social-links a:hover svg {
    stroke: var(--color-primary);
}

.social-links svg {
    width: 20px;
    height: 20px;
    stroke: var(--color-gray-400);
}

.footer-column h4 {
    font-size: 1rem;
    margin-bottom: var(--space-lg);
    color: var(--color-white);
}

.footer-column ul {
    list-style: none;
}

.footer-column li {
    margin-bottom: var(--space-sm);
}

.footer-column a {
    color: var(--color-gray-400);
    font-size: 0.9rem;
    transition: color var(--transition-fast);
}

.footer-column a:hover {
    color: var(--color-secondary);
}

.footer-bottom {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: var(--space-xl);
    border-top: 1px solid var(--glass-border);
}

.footer-bottom p {
    font-size: 0.875rem;
}

.footer-legal {
    display: flex;
    gap: var(--space-xl);
}

.footer-legal a {
    color: var(--color-gray-500);
    font-size: 0.875rem;
}

.footer-legal a:hover {
    color: var(--color-secondary);
}

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

    .hero-content {
        order: 1;
    }

    .hero-visual {
        order: 0;
        margin-bottom: var(--space-2xl);
    }

    .hero-description {
        margin: 0 auto var(--space-2xl);
    }

    .hero-cta {
        justify-content: center;
    }

    .hero-stats {
        justify-content: center;
    }

    .plans-grid,
    .upsell-grid {
        grid-template-columns: 1fr;
        max-width: 400px;
        margin: 0 auto;
    }

    .plan-card.featured {
        transform: none;
    }

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

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

    .tutorial-steps::before {
        display: none;
    }

    .reviews-grid {
        grid-template-columns: 1fr;
        max-width: 500px;
        margin: 0 auto;
    }

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

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

@media (max-width: 768px) {
    .nav-links {
        display: none;
    }

    .mobile-menu-btn {
        display: block;
    }

    .hero {
        padding-top: 120px;
    }

    .phone-mockup {
        width: 220px;
        height: 440px;
    }

    .trust-grid,
    .stats-row,
    .tutorial-steps {
        grid-template-columns: 1fr;
    }

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

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

    .footer-brand {
        max-width: none;
    }

    .social-links {
        justify-content: center;
    }

    .footer-bottom {
        flex-direction: column;
        gap: var(--space-md);
        text-align: center;
    }
}

@media (max-width: 480px) {
    :root {
        --space-lg: 1rem;
        --space-xl: 1.5rem;
        --space-2xl: 2rem;
        --space-3xl: 2.5rem;
        --space-4xl: 3rem;
    }

    .btn {
        padding: var(--space-sm) var(--space-lg);
        font-size: 0.9rem;
    }

    .hero-cta {
        flex-direction: column;
    }

    .hero-stats {
        flex-direction: column;
        gap: var(--space-lg);
    }
}

/* ========================================
   eSIM Activation Guide
   ======================================== */
.esim-guide {
    margin-top: var(--space-3xl);
    padding-top: var(--space-3xl);
    border-top: 1px solid var(--glass-border);
}

.esim-steps-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--space-lg);
    margin-bottom: var(--space-2xl);
}

.esim-step-card {
    padding: var(--space-lg);
    text-align: center;
    position: relative;
}

.esim-step-number {
    position: absolute;
    top: -12px;
    left: 50%;
    transform: translateX(-50%);
    width: 28px;
    height: 28px;
    background: linear-gradient(135deg, var(--color-secondary), var(--color-secondary-dark));
    color: var(--color-primary);
    font-family: var(--font-display);
    font-size: 0.9rem;
    font-weight: 700;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
}

.esim-illustration {
    width: 100%;
    height: 140px;
    margin-bottom: var(--space-md);
    display: flex;
    align-items: center;
    justify-content: center;
}

.esim-illustration svg {
    width: 100%;
    height: 100%;
    max-width: 180px;
}

.esim-step-title {
    font-size: 1rem;
    margin-bottom: var(--space-sm);
    color: var(--color-white);
}

.esim-step-desc {
    font-size: 0.85rem;
    color: var(--color-gray-400);
    line-height: 1.5;
}

/* OS Tabs */
.esim-os-tabs {
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-lg);
    padding: var(--space-lg);
    margin-bottom: var(--space-xl);
}

.os-tab-buttons {
    display: flex;
    gap: var(--space-sm);
    margin-bottom: var(--space-lg);
    justify-content: center;
}

.os-tab-btn {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    padding: var(--space-sm) var(--space-lg);
    background: transparent;
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-full);
    color: var(--color-gray-400);
    font-family: var(--font-primary);
    font-size: 0.9rem;
    font-weight: 500;
    cursor: pointer;
    transition: all var(--transition-base);
}

.os-tab-btn:hover {
    background: var(--glass-bg);
    color: var(--color-white);
}

.os-tab-btn.active {
    background: linear-gradient(135deg, var(--color-secondary), var(--color-secondary-dark));
    border-color: var(--color-secondary);
    color: var(--color-primary);
}

.os-tab-btn svg {
    width: 20px;
    height: 20px;
}

.os-tab-content {
    display: none;
}

.os-tab-content.active {
    display: block;
}

.os-steps {
    display: flex;
    flex-direction: column;
    gap: var(--space-sm);
}

.os-step {
    display: flex;
    align-items: center;
    gap: var(--space-md);
    padding: var(--space-md);
    background: rgba(0, 0, 0, 0.2);
    border-radius: var(--radius-md);
}

.os-step-num {
    width: 28px;
    height: 28px;
    background: linear-gradient(135deg, var(--color-trust-blue), var(--color-trust-blue-light));
    color: var(--color-white);
    font-family: var(--font-display);
    font-size: 0.85rem;
    font-weight: 700;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.os-step span:last-child {
    color: var(--color-gray-300);
    font-size: 0.95rem;
}

.os-step strong {
    color: var(--color-white);
}

/* eSIM Tips */
.esim-tips {
    padding: var(--space-xl);
    background: linear-gradient(135deg, rgba(255, 215, 0, 0.1), rgba(255, 165, 0, 0.05));
    border-color: rgba(255, 215, 0, 0.2);
}

.esim-tips h4 {
    font-size: 1.1rem;
    margin-bottom: var(--space-md);
    color: var(--color-accent);
}

.esim-tips ul {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: var(--space-sm);
}

.esim-tips li {
    position: relative;
    padding-left: var(--space-lg);
    color: var(--color-gray-300);
    font-size: 0.9rem;
}

.esim-tips li::before {
    content: '⚡';
    position: absolute;
    left: 0;
}

/* eSIM Responsive */
@media (max-width: 1024px) {
    .esim-steps-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .esim-steps-grid {
        grid-template-columns: 1fr;
        max-width: 400px;
        margin-left: auto;
        margin-right: auto;
    }

    .os-tab-buttons {
        flex-direction: column;
        align-items: stretch;
    }

    .os-tab-btn {
        justify-content: center;
    }
}

/* Google Fonts Import */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700&family=Outfit:wght@400;500;600;700&display=swap');