/* ==========================================================================
   Advanced Enterprise / Tech Light Theme
   ========================================================================== */
:root {
    --bg-base: #F8FAFC;
    --bg-surface: #FFFFFF;
    --bg-surface-elevated: #F1F5F9;
    --border-dim: rgba(15, 23, 42, 0.08);
    --border-bright: rgba(15, 23, 42, 0.2);
    
    --text-primary: #0F172A;
    --text-secondary: #334155;
    --text-muted: #64748B;
    
    --accent-blue: #0284C7;
    --accent-blue-glow: rgba(2, 132, 199, 0.25);
    --accent-cyan: #0284C7;
    --accent-green: #059669;
    
    --font-sans: 'Inter', -apple-system, sans-serif;
    --font-mono: 'JetBrains Mono', monospace;
}

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

body {
    font-family: var(--font-sans);
    background-color: var(--bg-base);
    color: var(--text-primary);
    line-height: 1.6;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
}

/* Background Grid Effect */
.bg-grid {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    background-image: 
        linear-gradient(to right, var(--border-dim) 1px, transparent 1px),
        linear-gradient(to bottom, var(--border-dim) 1px, transparent 1px);
    background-size: 50px 50px;
    z-index: -1;
    pointer-events: none;
    mask-image: radial-gradient(circle at center, black, transparent 80%);
    -webkit-mask-image: radial-gradient(circle at center, black, transparent 80%);
}

.container {
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 32px;
}

a {
    text-decoration: none;
    color: inherit;
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 14px 28px;
    font-size: 0.875rem;
    font-weight: 600;
    letter-spacing: 1px;
    text-transform: uppercase;
    border-radius: 4px;
    transition: all 0.3s ease;
    cursor: pointer;
    font-family: var(--font-mono);
}

.btn-primary {
    background: var(--text-primary);
    color: var(--bg-base);
    border: 1px solid var(--text-primary);
}

.btn-primary:hover {
    background: var(--text-secondary);
    border-color: var(--text-secondary);
    box-shadow: 0 8px 20px rgba(15,23,42,0.15);
}

.btn-secondary {
    background: transparent;
    color: var(--text-secondary);
    border: 1px solid var(--border-bright);
}

.btn-secondary:hover {
    border-color: var(--text-primary);
    color: var(--text-primary);
    background: rgba(15,23,42,0.03);
}

.btn-outline {
    background: transparent;
    border: 1px solid var(--border-dim);
    color: var(--text-primary);
    padding: 10px 20px;
    font-size: 0.75rem;
}

.btn-outline:hover {
    border-color: var(--accent-blue);
    color: var(--accent-blue);
    background: rgba(2,132,199,0.05);
}

/* Navbar */
.navbar {
    position: fixed;
    top: 0;
    width: 100%;
    z-index: 1000;
    background: rgba(255, 255, 255, 0.85);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--border-dim);
}

.nav-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 80px;
}

.logo {
    display: flex;
    align-items: center;
    gap: 12px;
    font-family: var(--font-mono);
    font-weight: 700;
    font-size: 1.125rem;
    letter-spacing: 2px;
}

.logo-icon {
    width: 16px;
    height: 16px;
    background: var(--accent-blue);
    box-shadow: 0 0 15px var(--accent-blue-glow);
}

.nav-links {
    display: flex;
    list-style: none;
    gap: 40px;
}

.nav-links a {
    font-family: var(--font-mono);
    font-size: 0.8rem;
    letter-spacing: 1.5px;
    color: var(--text-secondary);
    transition: color 0.2s;
}

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

/* Hero Section */
.hero {
    padding: 180px 0 100px;
    min-height: 100vh;
    display: flex;
    align-items: center;
}

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

.badge {
    display: inline-block;
    padding: 6px 12px;
    border: 1px solid var(--accent-blue-glow);
    border-radius: 100px;
    font-family: var(--font-mono);
    font-size: 0.7rem;
    color: var(--accent-cyan);
    letter-spacing: 2px;
    margin-bottom: 24px;
    background: rgba(2, 132, 199, 0.05);
}

.hero-text h1 {
    font-size: 4.5rem;
    line-height: 1.05;
    font-weight: 800;
    letter-spacing: -2px;
    margin-bottom: 24px;
}

.text-gradient {
    background: linear-gradient(to right, #0F172A, #64748B);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.hero-text .subtitle {
    font-size: 1.25rem;
    color: var(--text-secondary);
    margin-bottom: 24px;
    font-weight: 500;
}

.hero-text .description {
    font-size: 1rem;
    color: var(--text-muted);
    margin-bottom: 48px;
    max-width: 100%;
}

.hero-actions {
    display: flex;
    gap: 20px;
}

/* Pure CSS App Mockup (No Images Needed) */
.hero-image-wrapper, .why-us-image-wrapper {
    position: relative;
    display: flex;
    justify-content: center;
    perspective: 1000px;
}

.glow-orb {
    position: absolute;
    width: 400px;
    height: 400px;
    background: radial-gradient(circle, var(--accent-blue-glow) 0%, transparent 70%);
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    z-index: 0;
    filter: blur(40px);
}

.glow-orb.secondary {
    background: radial-gradient(circle, rgba(2, 132, 199, 0.15) 0%, transparent 70%);
}

.mockup-phone {
    position: relative;
    z-index: 1;
    width: 320px;
    height: 650px;
    background: var(--bg-surface);
    border-radius: 40px;
    border: 8px solid #F1F5F9;
    box-shadow: 
        0 0 0 1px #CBD5E1,
        0 30px 60px -10px rgba(15,23,42,0.15),
        inset 0 0 0 1px rgba(0,0,0,0.05);
    transform: rotateY(-15deg) rotateX(5deg);
    overflow: hidden;
    display: flex;
    flex-direction: column;
}

.secondary-mockup {
    transform: rotateY(15deg) rotateX(5deg);
}

.mockup-header {
    display: flex;
    justify-content: space-between;
    padding: 16px 24px;
    font-family: var(--font-sans);
    font-size: 12px;
    font-weight: 600;
    color: var(--text-primary);
}

.status-bar {
    display: flex;
    gap: 6px;
    align-items: center;
}

.signal {
    width: 14px;
    height: 10px;
    background: linear-gradient(to right, var(--text-primary) 30%, var(--text-primary) 30%, var(--text-primary) 60%, rgba(15,23,42,0.2) 60%);
    clip-path: polygon(0 100%, 100% 100%, 100% 0);
}

.battery {
    width: 20px;
    height: 10px;
    border: 1px solid var(--text-primary);
    border-radius: 2px;
    position: relative;
}
.battery::after {
    content: '';
    position: absolute;
    top: 1px;
    left: 1px;
    bottom: 1px;
    width: 12px;
    background: var(--text-primary);
}

.mockup-body {
    flex: 1;
    padding: 20px;
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.app-top {
    text-align: center;
    padding-top: 20px;
}
.app-top.small { padding-top: 10px; text-align: left; }

.greeting {
    font-family: var(--font-mono);
    font-size: 10px;
    color: var(--text-muted);
    letter-spacing: 2px;
    margin-bottom: 8px;
}

.balance {
    font-size: 2.5rem;
    font-weight: 300;
    letter-spacing: -1px;
    margin-bottom: 8px;
    color: var(--text-primary);
}

.trend {
    font-family: var(--font-mono);
    font-size: 10px;
    color: var(--accent-green);
    background: rgba(5, 150, 105, 0.1);
    display: inline-block;
    padding: 4px 8px;
    border-radius: 4px;
}

.chart-container {
    height: 120px;
    border-bottom: 1px solid var(--border-dim);
    display: flex;
    align-items: flex-end;
    padding-bottom: 10px;
}

.bar-chart {
    display: flex;
    justify-content: space-between;
    align-items: flex-end;
    width: 100%;
    height: 100px;
}

.bar {
    width: 32px;
    background: var(--bg-surface-elevated);
    border-radius: 4px 4px 0 0;
    transition: background 0.3s;
}

.bar.active {
    background: var(--accent-blue);
    box-shadow: 0 0 15px var(--accent-blue-glow);
}

.list-section {
    flex: 1;
}

.list-header {
    font-family: var(--font-mono);
    font-size: 10px;
    color: var(--text-muted);
    margin-bottom: 16px;
    letter-spacing: 1px;
}

.list-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 12px 0;
    border-bottom: 1px solid var(--border-dim);
}

.item-info {
    font-size: 0.85rem;
    font-weight: 600;
}

.item-amount {
    font-family: var(--font-mono);
    font-size: 0.85rem;
    color: var(--text-primary);
    font-weight: 700;
}

.item-amount.positive {
    color: var(--accent-green);
}

/* Secondary Mockup Specifics */
.gauge-container {
    height: 180px;
    position: relative;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    margin-top: 20px;
}

.gauge-arc {
    position: absolute;
    width: 180px;
    height: 90px;
    top: 20px;
    border-top-left-radius: 90px;
    border-top-right-radius: 90px;
    border: 12px solid var(--border-dim);
    border-bottom: 0;
}

.gauge-arc::after {
    content: '';
    position: absolute;
    width: 180px;
    height: 90px;
    top: -12px;
    left: -12px;
    border-top-left-radius: 90px;
    border-top-right-radius: 90px;
    border: 12px solid var(--accent-cyan);
    border-bottom: 0;
    clip-path: polygon(0 0, 80% 0, 80% 100%, 0 100%);
}

.gauge-value {
    font-size: 3rem;
    font-weight: 300;
    margin-top: 40px;
    color: var(--text-primary);
}

.gauge-label {
    font-family: var(--font-mono);
    font-size: 10px;
    color: var(--accent-cyan);
    letter-spacing: 2px;
    font-weight: 700;
}

.data-rows {
    display: flex;
    flex-direction: column;
    gap: 16px;
    margin-top: 20px;
}

.data-row {
    display: flex;
    justify-content: space-between;
    font-family: var(--font-mono);
    font-size: 0.75rem;
    padding-bottom: 8px;
    border-bottom: 1px dashed var(--border-dim);
}

.data-row .label { color: var(--text-muted); }
.data-row .value { color: var(--text-primary); font-weight: 700; }

.mockup-btn {
    margin-top: auto;
    width: 100%;
    padding: 16px;
    background: var(--bg-surface-elevated);
    color: var(--text-primary);
    border: 1px solid var(--border-dim);
    border-radius: 8px;
    font-family: var(--font-mono);
    font-weight: 700;
    font-size: 0.8rem;
    letter-spacing: 1px;
}

/* Features Section */
.features {
    padding: 120px 0;
    position: relative;
    background: var(--bg-surface);
}

.section-header {
    margin-bottom: 80px;
}

.section-title {
    font-size: 2rem;
    font-weight: 800;
    letter-spacing: -0.5px;
    margin-bottom: 24px;
}

.title-line {
    width: 60px;
    height: 4px;
    background: var(--accent-blue);
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 32px;
}

.feature-card {
    background: var(--bg-base);
    border: 1px solid var(--border-dim);
    padding: 40px;
    position: relative;
    transition: transform 0.3s, box-shadow 0.3s;
}

.feature-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 20px 40px rgba(15,23,42,0.05);
}

.feature-card .card-border {
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--accent-blue);
    transition: width 0.3s ease;
}

.feature-card:hover .card-border {
    width: 100%;
}

.feature-icon {
    font-family: var(--font-mono);
    font-size: 1.5rem;
    color: var(--accent-blue);
    margin-bottom: 24px;
    font-weight: 700;
}

.feature-card h3 {
    font-size: 1rem;
    margin-bottom: 16px;
}

.feature-card p {
    color: var(--text-secondary);
    font-size: 0.95rem;
    line-height: 1.7;
}

/* Why Us Section */
.why-us {
    padding: 120px 0;
    background: var(--bg-base);
    border-top: 1px solid var(--border-dim);
}

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

.benefits-list {
    list-style: none;
    margin-top: 40px;
}

.benefits-list li {
    margin-bottom: 40px;
}

.benefit-head {
    display: flex;
    align-items: center;
    gap: 16px;
    margin-bottom: 12px;
}

.bullet {
    width: 8px;
    height: 8px;
    background: var(--accent-cyan);
    border-radius: 50%;
}

.benefit-head strong {
    font-size: 1.125rem;
    letter-spacing: -0.5px;
}

.benefits-list p {
    color: var(--text-secondary);
    padding-left: 24px;
    font-size: 0.95rem;
}

/* Footer */
.footer {
    padding: 80px 0 40px;
    border-top: 1px solid var(--border-dim);
    background: var(--bg-surface);
}

.footer-top {
    display: grid;
    grid-template-columns: 1fr 2fr;
    gap: 60px;
    margin-bottom: 60px;
}

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

.support-email {
    font-family: var(--font-mono);
    color: var(--text-primary);
    font-size: 0.85rem;
    font-weight: 600;
}

.footer-notice {
    background: var(--bg-base);
    border: 1px solid var(--border-dim);
    padding: 32px;
    border-radius: 4px;
}

.footer-notice strong {
    display: block;
    font-family: var(--font-mono);
    color: var(--text-primary);
    font-size: 0.75rem;
    letter-spacing: 1px;
    margin-bottom: 16px;
    font-weight: 700;
}

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

.footer-bottom {
    text-align: center;
    border-top: 1px solid var(--border-dim);
    padding-top: 32px;
    font-family: var(--font-mono);
    font-size: 0.75rem;
    color: var(--text-muted);
}

/* Responsive */
@media (max-width: 992px) {
    .hero-container, .why-us-container {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .hero-actions {
        justify-content: center;
    }
    
    .hero-image-wrapper, .why-us-image-wrapper {
        margin-top: 60px;
    }
    
    .features-grid {
        grid-template-columns: 1fr;
    }
    
    .title-line {
        margin: 0 auto;
    }
    
    .footer-top {
        grid-template-columns: 1fr;
    }
}