:root {
    /* Color Palette - Identical to LiFin App Dark Mode */
    --bg-primary: #111422;
    --bg-secondary: #1a1e30;
    
    --text-primary: #ffffff;
    --text-secondary: #8c90b0;
    
    --accent-primary: #2fa1ff;
    --accent-primary-hover: #1c8ae6;
    --accent-expense: #ff7676;
    --accent-income: #00d984;
    
    --bg-input: rgba(255, 255, 255, 0.03);
    --border-color: rgba(255, 255, 255, 0.05);
    
    --border-radius-sm: 8px;
    --border-radius-md: 12px;
    --border-radius-lg: 16px;
    --border-radius-xl: 32px;
    
    --shadow-sm: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    --shadow-md: 0 10px 15px -3px rgba(0, 0, 0, 0.3);
    --shadow-panel: 0 8px 24px 0 rgba(0, 0, 0, 0.2);
    
    --transition-fast: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-normal: 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

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

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    background-color: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.5;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    min-height: 100vh;
    position: relative;
    overflow-x: hidden;
    background-attachment: fixed;
}

/* Animated Background Lights (Liquid Glass Effect) */
body::before, body::after {
    content: '';
    position: fixed;
    border-radius: 50%;
    filter: blur(100px);
    z-index: -1;
    opacity: 0.15;
    animation: floatBackground 20s infinite alternate ease-in-out;
}

body::before {
    top: -10%;
    left: -5%;
    width: 50vw;
    height: 50vw;
    background: radial-gradient(circle, var(--accent-primary), transparent 70%);
}

body::after {
    bottom: -10%;
    right: -5%;
    width: 60vw;
    height: 60vw;
    background: radial-gradient(circle, var(--accent-income), transparent 70%);
    animation-delay: -7s;
}

@keyframes floatBackground {
    0% { transform: translate(0, 0) scale(1); }
    33% { transform: translate(5%, 15%) scale(1.1); }
    66% { transform: translate(-5%, 5%) scale(0.9); }
    100% { transform: translate(8%, -5%) scale(1.05); }
}

/* Animations */
@keyframes fadeIn {
    from { opacity: 0; transform: translateY(10px); }
    to { opacity: 1; transform: translateY(0); }
}

.animate-fade-in {
    opacity: 0;
    animation: fadeIn 0.4s ease-out forwards;
}

.stagger-1 { animation-delay: 0.1s; }
.stagger-2 { animation-delay: 0.2s; }
.stagger-3 { animation-delay: 0.3s; }

/* Global Classes */
.text-accent { color: var(--accent-primary); }
.text-income { color: var(--accent-income); }
.text-expense { color: var(--accent-expense); }
.text-muted { color: var(--text-secondary); }

.glass-panel {
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-panel);
    padding: 1.5rem;
    transition: transform var(--transition-normal), box-shadow var(--transition-normal);
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 0.6rem 1.2rem;
    border-radius: var(--border-radius-md);
    font-weight: 500;
    font-size: 0.95rem;
    cursor: pointer;
    border: none;
    text-decoration: none;
    color: var(--text-primary);
    transition: all var(--transition-fast);
}

.btn-primary {
    background: var(--accent-primary);
    color: white;
    box-shadow: 0 4px 14px 0 rgba(47, 161, 255, 0.39);
}

.btn-primary:hover {
    background: var(--accent-primary-hover);
    box-shadow: 0 6px 20px rgba(47, 161, 255, 0.4);
    transform: translateY(-1px);
}

.btn-large {
    padding: 1rem 2rem;
    font-size: 1.1rem;
    border-radius: var(--border-radius-lg);
}

/* Layout */
.app-container {
    display: flex;
    min-height: 100vh;
}

.main-content {
    flex: 1;
    max-width: 1200px;
    margin: 0 auto;
    width: 100%;
    padding: 2rem 3rem 5rem 3rem;
    display: flex;
    flex-direction: column;
    gap: 4rem;
}

/* Navbar */
.app-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: 1.5rem;
    position: relative;
    z-index: 1000;
}

.nav-container {
    display: flex;
    align-items: center;
    gap: 2rem;
}

.nav-links {
    display: flex;
    gap: 0.75rem;
    align-items: center;
}

.nav-actions {
    display: flex;
    gap: 0.75rem;
    align-items: center;
}

.menu-toggle-checkbox {
    display: none;
}

.mobile-menu-toggle {
    display: none;
    cursor: pointer;
    padding: 8px;
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-md);
    color: var(--text-primary);
    transition: all var(--transition-fast);
    z-index: 1001;
}

.mobile-menu-toggle:hover {
    background: rgba(255, 255, 255, 0.05);
}

.mobile-menu-close {
    display: none;
    position: absolute;
    top: 1.5rem;
    right: 1.5rem;
    cursor: pointer;
    padding: 12px;
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 50%;
    color: var(--text-primary);
    transition: all var(--transition-fast);
    z-index: 1002;
}

.mobile-menu-close:hover {
    background: rgba(255, 255, 255, 0.1);
    transform: rotate(90deg);
}

.brand-pill {
    display: flex;
    align-items: center;
    gap: 8px;
    height: 44px;
    padding: 0 20px;
    background: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: 22px;
    color: var(--text-primary);
    font-size: 1rem;
    font-weight: 800;
    letter-spacing: 0.05em;
    cursor: default;
}

.btn-glass {
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    color: var(--text-primary);
    padding: 0.5rem 1rem;
    font-size: 0.85rem;
}

.btn-glass:hover {
    background: rgba(255, 255, 255, 0.05);
    border-color: rgba(255, 255, 255, 0.1);
}

/* Hero Section */
.hero-section {
    text-align: center;
    max-width: 1000px;
    margin: 2rem auto;
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
    align-items: center;
    position: relative;
    z-index: 10;
}

.hero-section h1 {
    font-size: clamp(2.5rem, 5vw, 4.5rem);
    line-height: 1.1;
    letter-spacing: -0.03em;
}

.gradient-text {
    background: linear-gradient(135deg, var(--accent-primary), #a855f7);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    display: inline-block;
}

.hero-subtitle {
    font-size: 1.2rem;
    max-width: 600px;
    line-height: 1.6;
}

.hero-actions {
    margin-top: 1rem;
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
    justify-content: center;
}

/* Hero Image Setup */
.hero-image-container {
    margin-top: 4rem;
    width: 100%;
    position: relative;
    z-index: 5;
    perspective: 1000px;
}

.hero-image-wrapper {
    position: relative;
    border-radius: var(--border-radius-xl);
    padding: 0.5rem;
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid var(--border-color);
    box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.5), 0 0 40px rgba(47, 161, 255, 0.1);
    backdrop-filter: blur(10px);
    transform: translateY(20px);
    transition: transform 0.6s cubic-bezier(0.2, 0.8, 0.2, 1), box-shadow 0.6s ease;
}

.hero-section:hover .hero-image-wrapper {
    transform: translateY(0);
    box-shadow: 0 30px 60px -12px rgba(0, 0, 0, 0.6), 0 0 60px rgba(47, 161, 255, 0.2);
}

.hero-app-img {
    width: 100%;
    height: auto;
    display: block;
    border-radius: calc(var(--border-radius-xl) - 0.5rem);
    border: 1px solid rgba(255, 255, 255, 0.05);
}

/* Features Block */
.features-section {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 1.5rem;
}

.feature-card {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.feature-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 12px 30px rgba(0, 0, 0, 0.4);
}

/* Icon Animations */
.stat-icon-bg svg {
    transition: transform 0.6s cubic-bezier(0.34, 1.56, 0.64, 1), color 0.4s ease;
}

.feature-card:hover .stat-icon-bg.income {
    background: rgba(255, 118, 118, 0.1);
}

.feature-card:hover .stat-icon-bg.income svg {
    transform: scaleY(-1);
    color: var(--accent-expense);
}

.feature-card:hover .stat-icon-bg.subscription svg {
    transform: rotate(360deg);
}

.feature-card:hover .stat-icon-bg.ai-feature svg {
    transform: scale(1.15);
}

.stat-icon-bg {
    width: 48px;
    height: 48px;
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    transition: background 0.4s ease;
}

.stat-icon-bg.income {
    background: rgba(0, 217, 132, 0.1);
    color: var(--accent-income);
}

.stat-icon-bg.subscription {
    background: rgba(47, 161, 255, 0.1);
    color: var(--accent-primary);
}

.stat-icon-bg.ai-feature {
    background: rgba(168, 85, 247, 0.1);
    color: #a855f7;
}

.feature-card h3 {
    font-size: 1.25rem;
    letter-spacing: -0.01em;
}

.feature-card p {
    font-size: 0.95rem;
    line-height: 1.6;
}

/* Preview App Mockup */
.preview-section {
    padding: 4rem 2rem;
    display: flex;
    flex-direction: column;
    gap: 3rem;
    text-align: center;
}

.preview-header h2 {
    font-size: 2rem;
    letter-spacing: -0.02em;
    margin-bottom: 0.5rem;
}

.mock-dash {
    background: rgba(17, 20, 34, 0.7);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-xl);
    padding: 2.5rem;
    max-width: 700px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    gap: 2.5rem;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.4);
    backdrop-filter: blur(10px);
}

.mock-stat-header {
    text-align: left;
}

.mock-label {
    text-transform: uppercase;
    font-size: 0.8rem;
    font-weight: 700;
    letter-spacing: 0.05em;
    margin-bottom: 0.5rem;
}

.mock-val {
    font-size: 3rem;
    font-weight: 800;
    letter-spacing: -0.03em;
}

.mock-chart {
    display: flex;
    align-items: flex-end;
    justify-content: space-around;
    height: 140px;
    gap: 1.5rem;
    padding-top: 1rem;
    border-bottom: 1px solid var(--border-color);
}

.mock-chart .bar {
    width: 100%;
    max-width: 60px;
    border-radius: 6px 6px 0 0;
    opacity: 0.9;
    box-shadow: 0 0 15px rgba(0, 0, 0, 0.2);
    position: relative;
    overflow: hidden;
}

.mock-chart .bar::after {
    content: '';
    position: absolute;
    top: 0; left: 0; right: 0; height: 100%;
    background: linear-gradient(180deg, rgba(255,255,255,0.2) 0%, transparent 100%);
}

.mock-chart .bar.income { background: var(--accent-income); }
.mock-chart .bar.expense { background: var(--accent-expense); }

/* Footer */
.app-footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-top: 1px solid var(--border-color);
    padding-top: 2rem;
    flex-wrap: wrap;
    gap: 1rem;
}

.footer-links {
    display: flex;
    gap: 2rem;
}

.footer-link {
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 0.85rem;
    transition: color var(--transition-fast);
}

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

.social-links {
    display: flex;
    gap: 1rem;
    align-items: center;
}

.social-link {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 36px;
    height: 36px;
    border-radius: 50%;
    background: var(--bg-input);
    color: var(--text-secondary);
    border: 1px solid var(--border-color);
    transition: all var(--transition-fast);
}

.social-link:hover {
    color: var(--accent-primary);
    border-color: var(--accent-primary);
    background: rgba(47, 161, 255, 0.1);
    transform: translateY(-2px);
}

/* Roadmap (Timeline) Styles */
.timeline {
    position: relative;
    max-width: 800px;
    margin: 2rem auto;
    padding: 2rem 0;
}

.timeline::before {
    content: '';
    position: absolute;
    left: 50%;
    top: 0;
    bottom: 0;
    width: 2px;
    background: linear-gradient(to bottom, transparent, var(--accent-primary), var(--accent-income), transparent);
    transform: translateX(-50%);
}

.timeline-item {
    position: relative;
    margin-bottom: 4rem;
    width: 100%;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.timeline-content {
    width: 45%;
    position: relative;
}

.timeline-item:nth-child(even) {
    flex-direction: row-reverse;
}

.timeline-dot {
    position: absolute;
    left: 50%;
    top: 20px;
    width: 16px;
    height: 16px;
    background: var(--bg-primary);
    border: 3px solid var(--accent-primary);
    border-radius: 50%;
    transform: translateX(-50%);
    z-index: 10;
    box-shadow: 0 0 15px var(--accent-primary);
}

.timeline-item:nth-child(even) .timeline-dot {
    border-color: var(--accent-income);
    box-shadow: 0 0 15px var(--accent-income);
}

.timeline-date {
    font-weight: 800;
    font-size: 0.85rem;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--accent-primary);
    margin-bottom: 0.5rem;
    display: block;
}

.timeline-item:nth-child(even) .timeline-date {
    color: var(--accent-income);
}

/* Contact Section Block */
.contact-highlight {
    text-align: center;
    padding: 4rem 2rem;
    background: linear-gradient(135deg, rgba(47, 161, 255, 0.05), rgba(0, 217, 132, 0.05));
    border-radius: var(--border-radius-xl);
    border: 1px solid var(--border-color);
    margin-top: 4rem;
}

.contact-email {
    font-size: clamp(1.5rem, 4vw, 2.5rem);
    font-weight: 800;
    color: var(--text-primary);
    text-decoration: none;
    transition: color var(--transition-fast);
    word-break: break-all;
}

.contact-email:hover {
    color: var(--accent-primary);
}



/* Responsiveness */
@media (max-width: 1024px) and (min-width: 768px) {
    .features-section {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .feature-card:last-child {
        grid-column: span 2;
        justify-self: center;
        max-width: 50%;
    }
}

@media (max-width: 768px) {
    .main-content {
        padding: 1rem 1.25rem;
        gap: 3rem;
    }
    
    .app-header {
        padding-top: 0.75rem;
    }

    .brand-pill {
        padding: 0 12px;
        height: 38px;
        font-size: 0.85rem;
        gap: 6px;
    }

    .brand-pill svg {
        width: 18px;
        height: 18px;
    }

    .mobile-menu-toggle {
        display: flex;
    }

    .nav-links {
        position: absolute;
        top: calc(100% + 0.5rem);
        right: 1.25rem;
        left: 1.25rem;
        height: auto;
        background: rgba(26, 30, 48, 0.98);
        backdrop-filter: blur(20px);
        border: 1px solid var(--border-color);
        border-radius: var(--border-radius-lg);
        padding: 1rem;
        flex-direction: column;
        justify-content: flex-start;
        align-items: stretch;
        gap: 0.5rem;
        box-shadow: 0 15px 35px rgba(0, 0, 0, 0.5);
        transform-origin: top;
        transform: scaleY(0);
        opacity: 0;
        visibility: hidden;
        transition: transform 0.3s cubic-bezier(0.34, 1.56, 0.64, 1), opacity 0.3s ease, visibility 0.3s;
        z-index: 999;
    }

    .mobile-menu-close {
        display: none !important;
    }

    .menu-toggle-checkbox:checked ~ .nav-container .nav-links {
        transform: scaleY(1);
        opacity: 1;
        visibility: visible;
    }

    /* Change hamburger to a close-like style or just keep it */
    .menu-toggle-checkbox:checked ~ .nav-container .mobile-menu-toggle {
        background: rgba(255, 255, 255, 0.1);
        border-color: rgba(255, 255, 255, 0.2);
    }

    .nav-actions {
        gap: 0.5rem;
    }

    .btn-glass, .btn-primary {
        padding: 0.5rem 0.9rem;
        font-size: 0.85rem;
    }

    .nav-links > a {
        opacity: 0;
        transform: translateY(-10px);
        transition: all 0.3s ease;
        transition-delay: 0s;
    }

    .menu-toggle-checkbox:checked ~ .nav-container .nav-links > a {
        opacity: 1;
        transform: translateY(0);
    }

    .menu-toggle-checkbox:checked ~ .nav-container .nav-links > a:nth-child(2) { transition-delay: 0.1s; }
    .menu-toggle-checkbox:checked ~ .nav-container .nav-links > a:nth-child(3) { transition-delay: 0.15s; }
    .menu-toggle-checkbox:checked ~ .nav-container .nav-links > a:nth-child(4) { transition-delay: 0.2s; }
    .menu-toggle-checkbox:checked ~ .nav-container .nav-links > a:nth-child(5) { transition-delay: 0.25s; }

    .nav-links .btn-glass {
        width: 100%;
        max-width: none;
        padding: 1rem 1.25rem;
        font-size: 1.05rem;
        border-radius: var(--border-radius-md);
        text-align: center;
        background: transparent;
        border: 1px solid transparent;
        color: var(--text-primary);
        display: flex;
        justify-content: center;
        gap: 0.5rem;
        align-items: center;
        transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    }

    .nav-links .btn-glass::after {
        content: '→';
        opacity: 0;
        transform: translateX(-10px);
        transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
        color: var(--accent-primary);
        font-weight: 800;
    }

    .nav-links .btn-glass:hover {
        background: rgba(47, 161, 255, 0.08);
        border-color: rgba(47, 161, 255, 0.15);
        color: var(--accent-primary);
        transform: translateX(4px);
    }

    .nav-links .btn-glass:hover::after {
        opacity: 1;
        transform: translateX(0);
    }
    
    .hero-section {
        align-items: center;
        text-align: center;
        margin: 1.5rem auto;
    }
    
    .hero-subtitle {
        font-size: 1.05rem;
        margin: 0;
    }
    
    .hero-image-container {
        margin-top: 2.5rem;
    }

    .hero-image-wrapper {
        padding: 0.35rem;
        border-radius: var(--border-radius-lg);
    }

    .hero-app-img {
        border-radius: calc(var(--border-radius-lg) - 0.35rem);
    }

    .mock-dash {
        padding: 1.5rem 1.25rem;
        width: 100%;
    }
    
    .mock-val {
        font-size: 2.2rem;
    }
    
    .mock-chart {
        gap: 0.75rem;
        height: 120px;
    }

    .app-footer {
        flex-direction: column;
        align-items: center;
        text-align: center;
        padding-bottom: 2rem;
    }

    .footer-links {
        justify-content: center;
        width: 100%;
        gap: 1.5rem;
        flex-wrap: wrap;
    }
    .contact-highlight {
        padding: 3rem 1.5rem;
        margin-top: 2rem;
    }

    /* Timeline Responsiveness */
    .timeline::before {
        left: 20px;
    }

    .timeline-item {
        flex-direction: row !important;
        justify-content: flex-start;
        margin-bottom: 2.5rem;
    }

    .timeline-dot {
        left: 20px;
        top: 24px;
    }

    .timeline-content {
        width: calc(100% - 50px);
        margin-left: 50px;
        padding: 1.25rem;
    }

    .timeline-item:nth-child(even) {
        flex-direction: row !important;
    }
}

@media (max-width: 480px) {
    .hero-section h1 {
        font-size: 2.5rem;
    }

    .btn-large {
        width: 100%;
        padding: 0.8rem 1.5rem;
    }

    .mock-val {
        font-size: 1.8rem;
    }

    .features-section {
        grid-template-columns: 1fr;
    }
}

/* Error Page Specific Styles */
.error-section {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    text-align: center;
    min-height: 50vh;
    gap: 2rem;
    margin-bottom: 2rem;
}

.error-code {
    font-size: clamp(6rem, 20vw, 12rem);
    font-weight: 900;
    line-height: 0.8;
    letter-spacing: -0.05em;
    position: relative;
    color: var(--text-primary);
}

.error-code::before {
    content: '404';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, var(--accent-primary), #a855f7);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    filter: blur(30px);
    opacity: 0.7;
    z-index: -1;
}

.error-title {
    font-size: clamp(1.5rem, 4vw, 2.5rem);
    font-weight: 700;
    margin-bottom: 0.5rem;
}

.error-description {
    font-size: 1.1rem;
    max-width: 500px;
    margin: 0 auto 1.5rem auto;
}