:root {
    --bg-main: hsl(172, 20%, 6%); /* Deep dark warm teal-gray */
    --bg-surface: hsl(172, 18%, 10%); /* Teal dark surface */
    --border-glass: rgba(255, 255, 255, 0.06);
    
    --primary: hsl(172, 95%, 35%); /* Deep Teal/Cyan from logo */
    --primary-glow: rgba(13, 148, 126, 0.15);
    
    --accent: hsl(38, 95%, 50%); /* Orange/Amber from logo */
    --accent-glow: rgba(245, 158, 11, 0.15);
    
    --text-primary: hsl(172, 20%, 92%); /* Teal-tinted warm text */
    --text-secondary: hsl(172, 12%, 72%);
    --text-muted: hsl(172, 8%, 52%);
    
    --font-heading: 'Outfit', sans-serif;
    --font-body: 'Inter', sans-serif;
    --transition-smooth: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

body {
    background-color: var(--bg-main);
    color: var(--text-primary);
    font-family: var(--font-body);
    line-height: 1.6;
    overflow-x: hidden;
}

.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 1.5rem;
}

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

.header {
    height: 80px;
    display: flex;
    align-items: center;
    border-bottom: 1px solid var(--border-glass);
    background-color: rgba(10, 16, 15, 0.7); /* Match dark teal scheme */
    backdrop-filter: blur(12px);
    position: sticky;
    top: 0;
    z-index: 10;
}

.nav-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    width: 100%;
}

.back-link {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--text-secondary);
    font-weight: 500;
}

.back-link:hover {
    color: var(--primary);
    transform: translateX(-3px);
}

.logo {
    font-family: var(--font-heading);
    font-size: 1.35rem;
    font-weight: 700;
}

.logo-accent {
    color: var(--primary);
}

.app-hero {
    position: relative;
    min-height: calc(100vh - 160px);
    display: flex;
    align-items: center;
    padding: 4rem 0;
}

.ambient-glow {
    position: absolute;
    border-radius: 50%;
    filter: blur(120px);
    z-index: 1;
    pointer-events: none;
    opacity: 0.1;
}

.glow-1 {
    top: 15%;
    left: 5%;
    width: 400px;
    height: 400px;
    background-color: var(--primary);
}

.glow-2 {
    bottom: 10%;
    right: 5%;
    width: 400px;
    height: 400px;
    background-color: var(--accent);
}

.hero-grid {
    display: grid;
    grid-template-columns: 1.2fr 0.8fr;
    gap: 4rem;
    align-items: center;
    z-index: 2;
}

.badge {
    display: inline-block;
    padding: 0.25rem 0.75rem;
    background-color: var(--primary-glow);
    border: 1px solid var(--primary);
    color: var(--primary);
    border-radius: 50px;
    font-size: 0.8rem;
    font-weight: 600;
    margin-bottom: 1.5rem;
}

h1 {
    font-family: var(--font-heading);
    font-size: 3.25rem;
    font-weight: 800;
    line-height: 1.2;
    margin-bottom: 1.5rem;
    background: linear-gradient(135deg, var(--primary), var(--accent));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.subtitle {
    font-size: 1.1rem;
    color: var(--text-secondary);
    margin-bottom: 3rem;
}

.app-features-list {
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

.feature-item {
    display: flex;
    gap: 1.25rem;
    align-items: flex-start;
}

.feature-item i {
    color: var(--primary);
    flex-shrink: 0;
}

.feature-item h3 {
    font-family: var(--font-heading);
    font-size: 1.15rem;
    margin-bottom: 0.25rem;
}

.feature-item p {
    color: var(--text-secondary);
    font-size: 0.95rem;
}

/* Phone Mockup Frame */
.hero-mockup {
    display: flex;
    justify-content: center;
}

.phone-frame {
    width: 300px;
    height: 600px;
    border: 10px solid #1a2523; /* Teal-dark phone frame */
    border-radius: 40px;
    background-color: #000;
    box-shadow: 0 20px 50px rgba(0, 0, 0, 0.6);
    overflow: hidden;
    position: relative;
}

.phone-screen {
    width: 100%;
    height: 100%;
    background-color: hsl(172, 18%, 8%);
    display: flex;
    flex-direction: column;
    padding: 1.5rem 1rem;
    color: var(--text-primary);
    position: relative;
}

.app-bar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-family: var(--font-heading);
    font-weight: 600;
    font-size: 1.05rem;
    margin-bottom: 1.5rem;
}

.budget-card {
    background-color: var(--primary);
    color: #fff;
    padding: 1.25rem;
    border-radius: 16px;
    display: flex;
    flex-direction: column;
    margin-bottom: 1.5rem;
    box-shadow: 0 4px 15px var(--primary-glow);
}

.card-label {
    font-size: 0.75rem;
    text-transform: uppercase;
    font-weight: 700;
    opacity: 0.8;
}

.card-val {
    font-family: var(--font-heading);
    font-size: 1.75rem;
    font-weight: 800;
}

.card-sub {
    font-size: 0.75rem;
    margin-top: 0.25rem;
    font-weight: 600;
    opacity: 0.8;
}

.scan-prompt {
    border: 2px dashed rgba(255, 255, 255, 0.15);
    background-color: rgba(255, 255, 255, 0.02);
    border-radius: 14px;
    padding: 1.25rem;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.5rem;
    color: var(--accent);
    cursor: pointer;
    margin-bottom: 1.5rem;
    font-weight: 600;
    font-size: 0.95rem;
    transition: var(--transition-smooth);
}

.scan-prompt:hover {
    background-color: rgba(255, 255, 255, 0.05);
    border-color: var(--accent);
}

.scan-prompt i {
    width: 28px;
    height: 28px;
}

.item-list {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.list-item {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.75rem;
    background-color: rgba(255, 255, 255, 0.03);
    border: 1px solid rgba(255, 255, 255, 0.05);
    border-radius: 12px;
    font-size: 0.85rem;
}

.list-item i {
    width: 18px;
    height: 18px;
    color: var(--primary);
}

.list-item strong {
    display: block;
    font-weight: 600;
    color: var(--text-primary);
}

.list-item p {
    font-size: 0.75rem;
    color: var(--text-muted);
}

.list-item .price {
    margin-left: auto;
    font-family: monospace;
    font-weight: 700;
    color: var(--accent);
}

.fab {
    position: absolute;
    bottom: 20px;
    right: 20px;
    width: 50px;
    height: 50px;
    border-radius: 50%;
    background-color: var(--primary);
    border: none;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #fff;
    box-shadow: 0 4px 10px var(--primary-glow);
}

.footer {
    height: 80px;
    display: flex;
    align-items: center;
    border-top: 1px solid var(--border-glass);
    color: var(--text-muted);
    font-size: 0.9rem;
    background-color: var(--bg-surface);
}

@media (max-width: 992px) {
    .hero-grid {
        grid-template-columns: 1fr;
        gap: 3rem;
        text-align: center;
    }
    
    .feature-item {
        text-align: left;
    }
}

/* Button Styles */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.85rem 1.75rem;
    font-family: var(--font-heading);
    font-size: 1rem;
    font-weight: 600;
    border-radius: 8px;
    cursor: pointer;
    transition: var(--transition-smooth);
    border: none;
    text-decoration: none;
}

.btn-primary {
    background-color: var(--primary);
    color: #fff;
}

.btn-primary:hover {
    background-color: hsl(172, 95%, 30%);
    transform: translateY(-2px);
    box-shadow: 0 8px 20px var(--primary-glow);
}

.hero-actions {
    margin-bottom: 2.5rem;
    display: flex;
    gap: 1rem;
}

@media (max-width: 992px) {
    .hero-actions {
        justify-content: center;
    }
}