:root {
    /* Light Theme (Clean, professional, high-contrast) */
    --bg-primary: #F8FAFC;
    --bg-secondary: #FFFFFF;
    --text-primary: #0F172A;
    --text-secondary: #475569;
    --text-muted: #64748B;
    --primary: #0066FF;
    --primary-hover: #0052CC;
    --primary-light: #EFF6FF;
    --accent: #00D2FF;
    --accent-dark: #00A3C4;
    --border-color: #E2E8F0;
    --card-shadow: 0 12px 30px -10px rgba(0, 102, 255, 0.08);
    --card-shadow-hover: 0 20px 40px -10px rgba(0, 102, 255, 0.15);
    --gradient-hero: linear-gradient(135deg, #EEF2F6 0%, #FFFFFF 100%);
    --gradient-primary: linear-gradient(135deg, #0066FF 0%, #00D2FF 100%);
    --gradient-accent: linear-gradient(135deg, #00D2FF 0%, #0066FF 100%);
    --silver-metal: linear-gradient(135deg, #E2E8F0 0%, #94A3B8 100%);
    
    --transition-speed: 0.3s;
    --border-radius: 16px;
}

[data-theme="dark"] {
    /* Dark Theme (Premium, futuristic, eye-friendly) */
    --bg-primary: #080C14;
    --bg-secondary: #0F1626;
    --text-primary: #F8FAFC;
    --text-secondary: #94A3B8;
    --text-muted: #64748B;
    --primary: #3B82F6;
    --primary-hover: #2563EB;
    --primary-light: rgba(59, 130, 246, 0.1);
    --accent: #00D2FF;
    --accent-dark: #00D2FF;
    --border-color: #1E293B;
    --card-shadow: 0 12px 30px -15px rgba(0, 0, 0, 0.5);
    --card-shadow-hover: 0 20px 40px -10px rgba(0, 210, 255, 0.15);
    --gradient-hero: linear-gradient(135deg, #080C14 0%, #0F1626 100%);
    --gradient-primary: linear-gradient(135deg, #3B82F6 0%, #00D2FF 100%);
    --gradient-accent: linear-gradient(135deg, #00D2FF 0%, #3B82F6 100%);
}

* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
    scroll-behavior: smooth;
}

body {
    font-family: 'Plus Jakarta Sans', sans-serif;
    background-color: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
    overflow-x: hidden;
    transition: background-color var(--transition-speed), color var(--transition-speed);
}

h1, h2, h3, h4, h5, h6 {
    font-family: 'Outfit', sans-serif;
    font-weight: 700;
    color: var(--text-primary);
}

/* --- Header / Navigation --- */
header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    background-color: rgba(255, 255, 255, 0.8);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--border-color);
    transition: background-color var(--transition-speed), border-color var(--transition-speed);
}

[data-theme="dark"] header {
    background-color: rgba(15, 22, 38, 0.8);
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 15px 24px;
}

.logo-area {
    display: flex;
    align-items: center;
    gap: 12px;
    text-decoration: none;
}

.logo-img {
    height: 45px;
    width: auto;
    border-radius: 50%;
    box-shadow: 0 4px 10px rgba(0, 102, 255, 0.2);
    transition: transform 0.3s ease;
}

.logo-area:hover .logo-img {
    transform: rotate(5deg) scale(1.05);
}

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

.brand-name {
    font-size: 20px;
    font-weight: 800;
    letter-spacing: 0.5px;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.brand-sub {
    font-size: 10px;
    font-weight: 600;
    letter-spacing: 1px;
    text-transform: uppercase;
    color: var(--text-secondary);
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 30px;
    list-style: none;
}

.nav-link {
    text-decoration: none;
    color: var(--text-secondary);
    font-weight: 600;
    font-size: 15px;
    transition: color 0.3s;
    position: relative;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -6px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--gradient-primary);
    transition: width 0.3s;
}

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

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

.nav-actions {
    display: flex;
    align-items: center;
    gap: 20px;
}

/* Day/Night Toggle Switch */
.theme-toggle-btn {
    background: var(--primary-light);
    border: 1px solid var(--border-color);
    color: var(--primary);
    width: 44px;
    height: 44px;
    border-radius: 50%;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 18px;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.theme-toggle-btn:hover {
    transform: scale(1.1) rotate(15deg);
    background: var(--primary);
    color: white;
    box-shadow: 0 4px 12px rgba(0, 102, 255, 0.25);
}

.btn-header-download {
    background: var(--gradient-primary);
    color: white;
    padding: 12px 24px;
    border-radius: 30px;
    text-decoration: none;
    font-weight: 700;
    font-size: 14px;
    letter-spacing: 0.5px;
    display: flex;
    align-items: center;
    gap: 8px;
    box-shadow: 0 4px 15px rgba(0, 102, 255, 0.25);
    transition: all 0.3s ease;
}

.btn-header-download:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(0, 102, 255, 0.35);
}

.mobile-menu-btn {
    display: none;
    font-size: 24px;
    color: var(--text-primary);
    background: none;
    border: none;
    cursor: pointer;
}

/* --- Hero Section --- */
.hero {
    padding: 160px 24px 100px 24px;
    background: var(--gradient-hero);
    position: relative;
    overflow: hidden;
    display: flex;
    justify-content: center;
    align-items: center;
}

.hero::before {
    content: '';
    position: absolute;
    width: 600px;
    height: 600px;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(0, 102, 255, 0.08) 0%, transparent 70%);
    top: -200px;
    right: -100px;
    z-index: 0;
}

.hero::after {
    content: '';
    position: absolute;
    width: 400px;
    height: 400px;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(0, 210, 255, 0.06) 0%, transparent 70%);
    bottom: -100px;
    left: -100px;
    z-index: 0;
}

.hero-container {
    max-width: 1200px;
    width: 100%;
    display: grid;
    grid-template-columns: 1.1fr 0.9fr;
    align-items: center;
    gap: 60px;
    position: relative;
    z-index: 1;
}

.hero-badge {
    background-color: var(--primary-light);
    color: var(--primary);
    padding: 8px 16px;
    border-radius: 30px;
    font-size: 13px;
    font-weight: 700;
    display: inline-flex;
    align-items: center;
    gap: 8px;
    margin-bottom: 24px;
    border: 1px solid rgba(0, 102, 255, 0.15);
}

.hero-badge i {
    color: var(--accent);
}

.hero-title {
    font-size: 54px;
    line-height: 1.15;
    letter-spacing: -1px;
    margin-bottom: 24px;
}

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

.hero-desc {
    font-size: 18px;
    color: var(--text-secondary);
    margin-bottom: 40px;
    max-width: 550px;
}

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

.btn-primary {
    background: var(--gradient-primary);
    color: white;
    padding: 16px 36px;
    border-radius: 30px;
    text-decoration: none;
    font-weight: 700;
    display: inline-flex;
    align-items: center;
    gap: 10px;
    box-shadow: 0 8px 24px rgba(0, 102, 255, 0.25);
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 12px 30px rgba(0, 102, 255, 0.35);
}

.btn-secondary {
    background: var(--bg-secondary);
    color: var(--text-primary);
    border: 1px solid var(--border-color);
    padding: 16px 36px;
    border-radius: 30px;
    text-decoration: none;
    font-weight: 700;
    display: inline-flex;
    align-items: center;
    gap: 10px;
    box-shadow: var(--card-shadow);
    transition: all 0.3s ease;
}

.btn-secondary:hover {
    background: var(--primary-light);
    border-color: rgba(0, 102, 255, 0.3);
    color: var(--primary);
    transform: translateY(-3px);
}

.hero-stats {
    display: flex;
    gap: 40px;
    border-top: 1px solid var(--border-color);
    padding-top: 30px;
}

.stat-item {
    display: flex;
    flex-direction: column;
}

.stat-val {
    font-size: 32px;
    font-weight: 800;
    color: var(--text-primary);
    font-family: 'Outfit', sans-serif;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.stat-lbl {
    font-size: 13px;
    color: var(--text-secondary);
    font-weight: 500;
}

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

.hero-blob {
    position: absolute;
    width: 420px;
    height: 420px;
    background: var(--gradient-primary);
    border-radius: 30% 70% 70% 30% / 30% 30% 70% 70%;
    opacity: 0.15;
    filter: blur(40px);
    animation: morphing 15s infinite alternate;
}

@keyframes morphing {
    0% { border-radius: 30% 70% 70% 30% / 30% 30% 70% 70%; }
    50% { border-radius: 50% 50% 30% 70% / 50% 60% 40% 50%; }
    100% { border-radius: 70% 30% 50% 50% / 30% 50% 50% 70%; }
}

.phone-mockup {
    width: 290px;
    max-width: 100%;
    background: #000;
    border: 12px solid #1E293B;
    border-radius: 40px;
    box-shadow: 0 30px 60px -15px rgba(0, 0, 0, 0.4), 0 0 0 4px #475569;
    overflow: hidden;
    position: relative;
    transform: rotate(-3deg);
    transition: transform 0.5s ease;
    aspect-ratio: 9 / 19.5;
}

.phone-mockup:hover {
    transform: rotate(0deg) scale(1.03);
}

.phone-speaker {
    width: 60px;
    height: 15px;
    background: #1E293B;
    position: absolute;
    top: 0;
    left: 50%;
    transform: translateX(-50%);
    border-bottom-left-radius: 12px;
    border-bottom-right-radius: 12px;
    z-index: 10;
}

.phone-screen {
    width: 100%;
    height: 100%;
    background-color: var(--bg-primary);
    padding: 24px 16px 16px 16px;
    display: flex;
    flex-direction: column;
    gap: 16px;
    overflow-y: auto;
}

/* --- Mockup Dashboard Styles --- */
.mock-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-top: 10px;
}
.mock-profile {
    display: flex;
    align-items: center;
    gap: 8px;
}
.mock-avatar {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    background: var(--gradient-primary);
}
.mock-p-text h5 { font-size: 11px; margin: 0; }
.mock-p-text p { font-size: 8px; color: var(--text-muted); }

.mock-card {
    background: var(--gradient-primary);
    border-radius: 16px;
    padding: 16px;
    color: white;
    display: flex;
    flex-direction: column;
    gap: 10px;
    box-shadow: 0 10px 20px rgba(0, 102, 255, 0.2);
}
.mock-card-balance { font-size: 20px; font-weight: 800; font-family: 'Outfit'; }
.mock-card-label { font-size: 9px; opacity: 0.8; text-transform: uppercase; letter-spacing: 0.5px;}
.mock-card-btn {
    background: rgba(255, 255, 255, 0.2);
    color: white;
    border: none;
    border-radius: 20px;
    padding: 6px 12px;
    font-size: 9px;
    font-weight: 700;
    cursor: pointer;
    align-self: flex-start;
}

.mock-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 10px;
}
.mock-icon-button {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 6px;
    background: var(--bg-secondary);
    padding: 8px;
    border-radius: 12px;
    border: 1px solid var(--border-color);
    box-shadow: var(--card-shadow);
}
.mock-icon-button i {
    font-size: 16px;
    color: var(--primary);
}
.mock-icon-button span {
    font-size: 7px;
    font-weight: 700;
    text-align: center;
    color: var(--text-secondary);
}

.mock-recent {
    display: flex;
    flex-direction: column;
    gap: 10px;
}
.mock-recent h6 { font-size: 11px; margin-bottom: 2px; }
.mock-trans-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    background: var(--bg-secondary);
    padding: 8px 12px;
    border-radius: 10px;
    border: 1px solid var(--border-color);
}
.mock-trans-left {
    display: flex;
    align-items: center;
    gap: 8px;
}
.mock-trans-icon {
    width: 24px;
    height: 24px;
    border-radius: 50%;
    background: rgba(0, 102, 255, 0.1);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--primary);
    font-size: 10px;
}
.mock-trans-info h6 { font-size: 9px; margin: 0; }
.mock-trans-info p { font-size: 7px; color: var(--text-muted); margin: 0;}
.mock-trans-amount { font-size: 9px; font-weight: 700; color: #10B981; }

/* --- Features Section --- */
.features {
    padding: 100px 24px;
    max-width: 1200px;
    margin: 0 auto;
}

.section-header {
    text-align: center;
    max-width: 700px;
    margin: 0 auto 60px auto;
}

.section-badge {
    background-color: var(--primary-light);
    color: var(--primary);
    padding: 6px 14px;
    border-radius: 20px;
    font-size: 12px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: 16px;
    display: inline-block;
}

.section-title {
    font-size: 40px;
    line-height: 1.2;
    margin-bottom: 16px;
}

.section-desc {
    color: var(--text-secondary);
    font-size: 16px;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
}

.feature-card {
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    padding: 40px;
    box-shadow: var(--card-shadow);
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    overflow: hidden;
}

.feature-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 4px;
    background: var(--gradient-primary);
    transform: scaleX(0);
    transform-origin: left;
    transition: transform 0.3s ease;
}

.feature-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--card-shadow-hover);
}

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

.feature-icon-wrapper {
    width: 60px;
    height: 60px;
    border-radius: 16px;
    background: var(--primary-light);
    color: var(--primary);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 24px;
    margin-bottom: 28px;
    transition: all 0.3s;
}

.feature-card:hover .feature-icon-wrapper {
    background: var(--primary);
    color: white;
    transform: scale(1.05) rotate(5deg);
}

.feature-name {
    font-size: 22px;
    font-weight: 700;
    margin-bottom: 14px;
}

.feature-desc {
    color: var(--text-secondary);
    font-size: 15px;
    margin-bottom: 20px;
}

.feature-link {
    color: var(--primary);
    font-weight: 700;
    text-decoration: none;
    font-size: 14px;
    display: inline-flex;
    align-items: center;
    gap: 6px;
}

.feature-link i {
    transition: transform 0.3s;
}

.feature-card:hover .feature-link i {
    transform: translateX(4px);
}

/* --- How It Works --- */
.how-it-works {
    background: var(--bg-secondary);
    padding: 100px 24px;
    border-top: 1px solid var(--border-color);
    border-bottom: 1px solid var(--border-color);
}

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

.steps-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 40px;
    position: relative;
    margin-top: 60px;
}

.step-card {
    text-align: center;
    position: relative;
    z-index: 1;
}

.step-num {
    width: 70px;
    height: 70px;
    border-radius: 50%;
    background: var(--gradient-primary);
    color: white;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 28px;
    font-weight: 800;
    font-family: 'Outfit', sans-serif;
    margin: 0 auto 24px auto;
    box-shadow: 0 8px 20px rgba(0, 102, 255, 0.25);
    position: relative;
}

.step-card:not(:last-child)::after {
    content: '';
    position: absolute;
    top: 35px;
    left: calc(50% + 50px);
    width: calc(100% - 100px);
    height: 2px;
    background: var(--border-color);
    z-index: -1;
}

.step-title {
    font-size: 20px;
    font-weight: 700;
    margin-bottom: 12px;
}

.step-desc {
    color: var(--text-secondary);
    font-size: 14px;
    max-width: 250px;
    margin: 0 auto;
}

/* --- Interactive Pricing Preview --- */
.pricing-section {
    padding: 100px 24px;
    max-width: 1200px;
    margin: 0 auto;
}

.pricing-table-wrapper {
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    box-shadow: var(--card-shadow);
    padding: 40px;
    margin-top: 40px;
}

.pricing-tabs {
    display: flex;
    justify-content: center;
    gap: 15px;
    margin-bottom: 35px;
    flex-wrap: wrap;
}

.tab-btn {
    background: var(--bg-primary);
    border: 1px solid var(--border-color);
    color: var(--text-secondary);
    padding: 10px 24px;
    border-radius: 30px;
    font-weight: 700;
    font-size: 14px;
    cursor: pointer;
    transition: all 0.3s;
}

.tab-btn.active {
    background: var(--gradient-primary);
    color: white;
    border-color: transparent;
    box-shadow: 0 4px 15px rgba(0, 102, 255, 0.25);
}

.pricing-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 20px;
}

.pricing-card {
    background: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 24px;
    text-align: center;
    transition: all 0.3s ease;
}

.pricing-card:hover {
    transform: translateY(-5px);
    border-color: var(--primary);
    box-shadow: var(--card-shadow-hover);
}

.plan-name {
    font-size: 18px;
    font-weight: 700;
    margin-bottom: 8px;
}

.plan-price {
    font-size: 28px;
    font-weight: 800;
    color: var(--primary);
    font-family: 'Outfit', sans-serif;
    margin-bottom: 12px;
}

.plan-validity {
    font-size: 12px;
    color: var(--text-muted);
    text-transform: uppercase;
    font-weight: 600;
    margin-bottom: 16px;
    display: block;
}

.btn-order-vtu {
    display: block;
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    color: var(--text-primary);
    text-decoration: none;
    padding: 10px 16px;
    border-radius: 8px;
    font-size: 13px;
    font-weight: 700;
    transition: all 0.3s;
}

.pricing-card:hover .btn-order-vtu {
    background: var(--gradient-primary);
    color: white;
    border-color: transparent;
}

/* --- Advert & Convincing Copy Banner --- */
.promo-banner {
    padding: 100px 24px;
    background: var(--gradient-primary);
    color: white;
    position: relative;
    overflow: hidden;
}

.promo-banner::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='100' height='100' viewBox='0 0 100 100'%3E%3Cg fill-rule='evenodd'%3E%3Cg fill='%23ffffff' fill-opacity='0.05'%3E%3Cpath d='M50 50c0-5.523 4.477-10 10-10s10 4.477 10 10-4.477 10-10 10c0 5.523-4.477 10-10 10s-10-4.477-10-10 4.477-10 10-10zM10 10c0-5.523 4.477-10 10-10s10 4.477 10 10-4.477 10-10 10c0 5.523-4.477 10-10 10S0 25.523 0 20s4.477-10 10-10zm10 80c0-5.523 4.477-10 10-10s10 4.477 10 10-4.477 10-10 10c0 5.523-4.477 10-10 10s-10-4.477-10-10 4.477-10 10-10zM90 10c0-5.523 4.477-10 10-10s10 4.477 10 10-4.477 10-10 10c0 5.523-4.477 10-10 10s-10-4.477-10-10 4.477-10 10-10zm0 80c0-5.523 4.477-10 10-10s10 4.477 10 10-4.477 10-10 10c0 5.523-4.477 10-10 10s-10-4.477-10-10 4.477-10 10-10z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
    opacity: 0.3;
}

.promo-container {
    max-width: 1200px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: 1.2fr 0.8fr;
    align-items: center;
    gap: 60px;
    position: relative;
    z-index: 1;
}

.promo-text h2 {
    font-size: 44px;
    color: white;
    line-height: 1.2;
    margin-bottom: 20px;
}

.promo-text p {
    font-size: 18px;
    opacity: 0.9;
    margin-bottom: 30px;
    line-height: 1.7;
}

.promo-bullets {
    list-style: none;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
    margin-bottom: 40px;
}

.promo-bullet {
    display: flex;
    align-items: center;
    gap: 10px;
    font-weight: 600;
}

.promo-bullet i {
    background: rgba(255, 255, 255, 0.2);
    width: 24px;
    height: 24px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 12px;
}

.btn-promo-download {
    background: white;
    color: var(--primary);
    padding: 16px 36px;
    border-radius: 30px;
    text-decoration: none;
    font-weight: 800;
    display: inline-flex;
    align-items: center;
    gap: 10px;
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.15);
    transition: all 0.3s;
}

.btn-promo-download:hover {
    transform: translateY(-3px);
    box-shadow: 0 15px 30px rgba(0, 0, 0, 0.25);
    background: #F8FAFC;
}

.promo-img-wrapper {
    display: flex;
    justify-content: center;
    position: relative;
}

.promo-circle-glow {
    position: absolute;
    width: 300px;
    height: 300px;
    background: var(--accent);
    border-radius: 50%;
    filter: blur(80px);
    opacity: 0.3;
    z-index: 0;
}

.promo-mockup {
    width: 260px;
    height: 520px;
    border: 8px solid white;
    border-radius: 30px;
    box-shadow: 0 20px 40px rgba(0,0,0,0.3);
    overflow: hidden;
    z-index: 1;
    background: #F1F5F9;
}

.promo-mock-screen {
    width: 100%;
    height: 100%;
    background: var(--gradient-hero);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 24px;
    text-align: center;
}

.promo-mock-screen i {
    font-size: 48px;
    color: var(--primary);
    margin-bottom: 16px;
}

.promo-mock-screen h4 {
    font-size: 18px;
    margin-bottom: 8px;
    color: var(--text-primary);
}

.promo-mock-screen p {
    font-size: 11px;
    color: var(--text-secondary);
}

/* --- Frequently Asked Questions --- */
.faq {
    padding: 100px 24px;
    max-width: 800px;
    margin: 0 auto;
}

.faq-accordion {
    margin-top: 40px;
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.faq-item {
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    overflow: hidden;
    box-shadow: var(--card-shadow);
    transition: all 0.3s ease;
}

.faq-header {
    padding: 24px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    cursor: pointer;
    user-select: none;
}

.faq-header h4 {
    font-size: 16px;
    font-weight: 700;
}

.faq-toggle-icon {
    font-size: 14px;
    color: var(--text-muted);
    transition: transform 0.3s;
}

.faq-content {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s cubic-bezier(0, 1, 0, 1), padding 0.3s ease;
    padding: 0 24px;
    color: var(--text-secondary);
    font-size: 14px;
}

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

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

.faq-item.active .faq-content {
    max-height: 1000px;
    padding: 0 24px 24px 24px;
    transition: max-height 0.3s cubic-bezier(1, 0, 1, 0), padding 0.3s ease;
}

/* --- Contact Section --- */
.contact {
    padding: 100px 24px;
    background: var(--bg-secondary);
    border-top: 1px solid var(--border-color);
}

.contact-container {
    max-width: 1200px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: 0.9fr 1.1fr;
    gap: 60px;
}

.contact-info-panel {
    display: flex;
    flex-direction: column;
}

.contact-info-desc {
    color: var(--text-secondary);
    margin-bottom: 30px;
}

.contact-details {
    display: flex;
    flex-direction: column;
    gap: 24px;
}

.contact-card {
    display: flex;
    gap: 20px;
    align-items: flex-start;
}

.contact-icon {
    width: 48px;
    height: 48px;
    border-radius: 12px;
    background: var(--primary-light);
    color: var(--primary);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 20px;
    flex-shrink: 0;
}

.contact-card-text h5 {
    font-size: 16px;
    font-weight: 700;
    margin-bottom: 4px;
}

.contact-card-text p {
    font-size: 14px;
    color: var(--text-secondary);
    word-break: break-word;
}

.contact-form-panel {
    background: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    padding: 40px;
    box-shadow: var(--card-shadow);
}

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

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

.form-row .form-group {
    margin-bottom: 0;
}

.form-group label {
    font-size: 13px;
    font-weight: 700;
    color: var(--text-primary);
}

.form-group input, .form-group textarea {
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 12px 16px;
    font-family: inherit;
    color: var(--text-primary);
    font-size: 14px;
    outline: none;
    transition: all 0.3s;
}

.form-group input:focus, .form-group textarea:focus {
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(0, 102, 255, 0.15);
}

.btn-submit {
    background: var(--gradient-primary);
    color: white;
    border: none;
    padding: 14px 28px;
    border-radius: 8px;
    font-weight: 700;
    font-size: 15px;
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    gap: 8px;
    box-shadow: 0 4px 15px rgba(0, 102, 255, 0.25);
    transition: all 0.3s;
}

.btn-submit:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(0, 102, 255, 0.35);
}

/* --- Footer --- */
footer {
    background: #0B0F19;
    color: #94A3B8;
    padding: 80px 24px 30px 24px;
    border-top: 1px solid #1E293B;
}

.footer-container {
    max-width: 1200px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: 1fr 0.6fr 0.6fr 0.8fr;
    gap: 40px;
    margin-bottom: 60px;
}

.footer-about {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.footer-logo {
    display: flex;
    align-items: center;
    gap: 12px;
    text-decoration: none;
}

.footer-logo .logo-img {
    box-shadow: none;
    border: 2px solid rgba(255, 255, 255, 0.1);
}

.footer-logo .brand-name {
    background: linear-gradient(135deg, #FFFFFF 0%, #00D2FF 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.footer-logo .brand-sub {
    color: #64748B;
}

.footer-about p {
    font-size: 14px;
    line-height: 1.7;
}

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

.social-link {
    width: 36px;
    height: 36px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.05);
    color: white;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 15px;
    text-decoration: none;
    transition: all 0.3s;
}

.social-link:hover {
    background: var(--primary);
    transform: translateY(-2px);
}

.footer-col h5 {
    color: white;
    font-size: 16px;
    font-weight: 700;
    margin-bottom: 24px;
    position: relative;
}

.footer-col h5::after {
    content: '';
    position: absolute;
    bottom: -8px;
    left: 0;
    width: 30px;
    height: 2px;
    background: var(--primary);
}

.footer-links {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.footer-links a {
    color: #94A3B8;
    text-decoration: none;
    font-size: 14px;
    transition: color 0.3s;
}

.footer-links a:hover {
    color: white;
}

.footer-bottom {
    max-width: 1200px;
    margin: 0 auto;
    padding-top: 30px;
    border-top: 1px solid rgba(255, 255, 255, 0.05);
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 13px;
}

.dev-credit {
    font-weight: 600;
}

.dev-credit span {
    color: #00D2FF;
}

/* --- Responsiveness --- */
@media (max-width: 992px) {
    .hero-container {
        grid-template-columns: 1fr;
        gap: 40px;
        text-align: center;
    }

    .hero-desc {
        margin-left: auto;
        margin-right: auto;
    }

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

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

    .phone-mockup {
        transform: rotate(0deg);
        margin: 0 auto;
        width: 290px;
    }

    .promo-container {
        grid-template-columns: 1fr;
        gap: 40px;
        text-align: center;
    }

    .promo-bullets {
        justify-content: center;
        max-width: 500px;
        margin: 0 auto 30px auto;
    }

    .promo-mockup {
        margin: 0 auto;
    }

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

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

@media (max-width: 768px) {
    .nav-links {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        width: 100%;
        background: var(--bg-secondary);
        border-bottom: 1px solid var(--border-color);
        padding: 24px;
        flex-direction: column;
        gap: 20px;
        box-shadow: 0 10px 20px rgba(0, 0, 0, 0.05);
    }

    .nav-links.active {
        display: flex;
    }

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

    .hero-title {
        font-size: 40px;
    }

    .section-title {
        font-size: 32px;
    }

    .promo-text h2 {
        font-size: 32px;
    }

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

    .footer-bottom {
        flex-direction: column;
        gap: 15px;
        text-align: center;
    }
}

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

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

    .promo-bullets {
        grid-template-columns: 1fr;
    }

    .form-row {
        grid-template-columns: 1fr;
    }
    
    .phone-mockup {
        width: 100%;
        max-width: 280px;
        margin: 0 auto;
    }
}