/* ============================================
   Team Cash - Marketing Site Styles
   ============================================ */

/* CSS Variables */
:root {
    /* Colors */
    --color-primary: #10B981;
    --color-primary-dark: #059669;
    --color-primary-light: #34D399;

    --color-bg-dark: #0F172A;
    --color-bg-darker: #020617;
    --color-bg-card: #1E293B;
    --color-bg-card-hover: #334155;
    --color-bg-light: #F8FAFC;

    --color-text-primary: #F8FAFC;
    --color-text-secondary: #94A3B8;
    --color-text-muted: #64748B;
    --color-text-dark: #1E293B;

    --color-border: #334155;
    --color-border-light: #E2E8F0;

    /* Gradients */
    --gradient-primary: linear-gradient(135deg, #10B981 0%, #059669 100%);
    --gradient-hero: linear-gradient(180deg, #0F172A 0%, #1E293B 100%);
    --gradient-text: linear-gradient(135deg, #10B981 0%, #34D399 50%, #6EE7B7 100%);

    /* 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;

    /* Typography */
    --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --font-size-xs: 0.75rem;
    --font-size-sm: 0.875rem;
    --font-size-base: 1rem;
    --font-size-lg: 1.125rem;
    --font-size-xl: 1.25rem;
    --font-size-2xl: 1.5rem;
    --font-size-3xl: 2rem;
    --font-size-4xl: 2.5rem;
    --font-size-5xl: 3.5rem;

    /* Border Radius */
    --radius-sm: 0.375rem;
    --radius-md: 0.5rem;
    --radius-lg: 0.75rem;
    --radius-xl: 1rem;
    --radius-2xl: 1.5rem;
    --radius-full: 9999px;

    /* Shadows */
    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1);
    --shadow-glow: 0 0 40px rgba(16, 185, 129, 0.3);

    /* Transitions */
    --transition-fast: 150ms ease;
    --transition-base: 200ms ease;
    --transition-slow: 300ms ease;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-family);
    font-size: var(--font-size-base);
    line-height: 1.6;
    color: var(--color-text-primary);
    background-color: var(--color-bg-dark);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

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

img {
    max-width: 100%;
    height: auto;
}

/* Container */
.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--space-lg);
}

/* ============================================
   Navigation
   ============================================ */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 100;
    padding: var(--space-md) 0;
    background: rgba(15, 23, 42, 0.8);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid rgba(51, 65, 85, 0.5);
}

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

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

.logo-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 36px;
    height: 36px;
    background: var(--gradient-primary);
    border-radius: var(--radius-md);
    font-weight: 800;
    font-size: var(--font-size-lg);
}

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

.nav-cta {
    padding: var(--space-sm) var(--space-lg);
    background: var(--gradient-primary);
    border-radius: var(--radius-full);
    font-weight: 600;
    font-size: var(--font-size-sm);
    transition: transform var(--transition-base), box-shadow var(--transition-base);
}

.nav-cta:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-glow);
}

/* ============================================
   Hero Section
   ============================================ */
.hero {
    min-height: 100vh;
    padding: calc(80px + var(--space-4xl)) 0 var(--space-4xl);
    background: var(--gradient-hero);
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: radial-gradient(ellipse at 30% 20%, rgba(16, 185, 129, 0.15) 0%, transparent 50%),
                radial-gradient(ellipse at 70% 80%, rgba(16, 185, 129, 0.1) 0%, transparent 40%);
    pointer-events: none;
}

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

.hero-content {
    max-width: 560px;
}

.badge {
    display: inline-block;
    padding: var(--space-xs) var(--space-md);
    background: rgba(16, 185, 129, 0.15);
    border: 1px solid rgba(16, 185, 129, 0.3);
    border-radius: var(--radius-full);
    font-size: var(--font-size-sm);
    font-weight: 500;
    color: var(--color-primary-light);
    margin-bottom: var(--space-lg);
}

.hero-title {
    font-size: var(--font-size-5xl);
    font-weight: 800;
    line-height: 1.1;
    margin-bottom: var(--space-lg);
    letter-spacing: -0.02em;
}

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

.hero-subtitle {
    font-size: var(--font-size-lg);
    color: var(--color-text-secondary);
    margin-bottom: var(--space-2xl);
    line-height: 1.7;
}

/* Signup Form */
.signup-form {
    margin-bottom: var(--space-lg);
}

.form-group {
    display: flex;
    gap: var(--space-sm);
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-xl);
    padding: var(--space-xs);
}

.form-group input {
    flex: 1;
    padding: var(--space-md) var(--space-lg);
    background: transparent;
    border: none;
    outline: none;
    font-size: var(--font-size-base);
    color: var(--color-text-primary);
    font-family: inherit;
}

.form-group input::placeholder {
    color: var(--color-text-muted);
}

.btn {
    display: inline-flex;
    align-items: center;
    gap: var(--space-sm);
    padding: var(--space-md) var(--space-xl);
    border: none;
    border-radius: var(--radius-lg);
    font-size: var(--font-size-base);
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition-base);
    font-family: inherit;
    white-space: nowrap;
}

.btn-primary {
    background: var(--gradient-primary);
    color: white;
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-glow);
}

.btn-icon {
    font-size: var(--font-size-lg);
    transition: transform var(--transition-base);
}

.btn:hover .btn-icon {
    transform: translateX(4px);
}

.form-note {
    font-size: var(--font-size-sm);
    color: var(--color-text-muted);
}

/* Hero Visual / Dashboard Preview */
.hero-visual {
    display: flex;
    justify-content: center;
    align-items: center;
}

.dashboard-preview {
    width: 100%;
    max-width: 480px;
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-xl);
    overflow: hidden;
    box-shadow: var(--shadow-xl), var(--shadow-glow);
}

.preview-header {
    display: flex;
    align-items: center;
    gap: var(--space-md);
    padding: var(--space-md) var(--space-lg);
    background: rgba(0, 0, 0, 0.2);
    border-bottom: 1px solid var(--color-border);
}

.preview-dots {
    display: flex;
    gap: var(--space-sm);
}

.preview-dots span {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background: var(--color-border);
}

.preview-dots span:first-child {
    background: #EF4444;
}

.preview-dots span:nth-child(2) {
    background: #F59E0B;
}

.preview-dots span:last-child {
    background: #10B981;
}

.preview-title {
    font-size: var(--font-size-sm);
    color: var(--color-text-muted);
}

.preview-content {
    padding: var(--space-xl);
}

.preview-card {
    padding: var(--space-xl);
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
    border-radius: var(--radius-lg);
    margin-bottom: var(--space-lg);
}

.balance-card {
    display: flex;
    flex-direction: column;
    gap: var(--space-xs);
}

.card-label {
    font-size: var(--font-size-sm);
    color: rgba(255, 255, 255, 0.8);
}

.card-value {
    font-size: var(--font-size-3xl);
    font-weight: 700;
    letter-spacing: -0.02em;
}

.card-change {
    font-size: var(--font-size-sm);
    font-weight: 500;
}

.card-change.positive {
    color: #A7F3D0;
}

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

.stat-item {
    display: flex;
    flex-direction: column;
    gap: var(--space-xs);
    padding: var(--space-md);
    background: rgba(0, 0, 0, 0.2);
    border-radius: var(--radius-md);
    text-align: center;
}

.stat-value {
    font-size: var(--font-size-xl);
    font-weight: 700;
    color: var(--color-text-primary);
}

.stat-label {
    font-size: var(--font-size-xs);
    color: var(--color-text-muted);
}

/* ============================================
   Section Styles
   ============================================ */
.section-header {
    text-align: center;
    max-width: 640px;
    margin: 0 auto var(--space-3xl);
}

.section-title {
    font-size: var(--font-size-3xl);
    font-weight: 700;
    margin-bottom: var(--space-md);
    letter-spacing: -0.02em;
}

.section-subtitle {
    font-size: var(--font-size-lg);
    color: var(--color-text-secondary);
}

/* ============================================
   Features Section
   ============================================ */
.features {
    padding: var(--space-4xl) 0;
    background: var(--color-bg-darker);
}

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

.feature-card {
    padding: var(--space-2xl);
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-xl);
    transition: all var(--transition-base);
}

.feature-card:hover {
    background: var(--color-bg-card-hover);
    border-color: var(--color-primary);
    transform: translateY(-4px);
}

.feature-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 48px;
    height: 48px;
    background: rgba(16, 185, 129, 0.15);
    border-radius: var(--radius-lg);
    color: var(--color-primary);
    margin-bottom: var(--space-lg);
}

.feature-title {
    font-size: var(--font-size-xl);
    font-weight: 600;
    margin-bottom: var(--space-sm);
}

.feature-description {
    font-size: var(--font-size-base);
    color: var(--color-text-secondary);
    line-height: 1.7;
}

/* ============================================
   How It Works Section
   ============================================ */
.how-it-works {
    padding: var(--space-4xl) 0;
    background: var(--color-bg-dark);
}

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

.step-card {
    text-align: center;
    padding: var(--space-2xl);
}

.step-number {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 56px;
    height: 56px;
    background: var(--gradient-primary);
    border-radius: 50%;
    font-size: var(--font-size-2xl);
    font-weight: 700;
    margin-bottom: var(--space-lg);
}

.step-title {
    font-size: var(--font-size-xl);
    font-weight: 600;
    margin-bottom: var(--space-sm);
}

.step-description {
    color: var(--color-text-secondary);
    line-height: 1.7;
}

/* ============================================
   CTA Section
   ============================================ */
.cta-section {
    padding: var(--space-4xl) 0;
    background: var(--color-bg-darker);
}

.cta-card {
    max-width: 640px;
    margin: 0 auto;
    text-align: center;
    padding: var(--space-3xl);
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-2xl);
    position: relative;
    overflow: hidden;
}

.cta-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: var(--gradient-primary);
}

.cta-title {
    font-size: var(--font-size-2xl);
    font-weight: 700;
    margin-bottom: var(--space-md);
}

.cta-subtitle {
    font-size: var(--font-size-lg);
    color: var(--color-text-secondary);
    margin-bottom: var(--space-2xl);
}

.cta-form .form-group {
    max-width: 480px;
    margin: 0 auto;
}

.cta-note {
    font-size: var(--font-size-sm);
    color: var(--color-text-muted);
    margin-top: var(--space-md);
}

/* ============================================
   Footer
   ============================================ */
.footer {
    padding: var(--space-4xl) 0 var(--space-xl);
    background: var(--color-bg-dark);
    border-top: 1px solid var(--color-border);
}

.footer-container {
    display: grid;
    grid-template-columns: 1fr auto;
    gap: var(--space-4xl);
    margin-bottom: var(--space-3xl);
}

.footer-brand {
    max-width: 280px;
}

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

.footer-tagline {
    color: var(--color-text-muted);
    font-size: var(--font-size-sm);
}

.footer-links {
    display: flex;
    gap: var(--space-4xl);
}

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

.footer-column h4 {
    font-size: var(--font-size-sm);
    font-weight: 600;
    color: var(--color-text-primary);
    margin-bottom: var(--space-sm);
}

.footer-column a {
    font-size: var(--font-size-sm);
    color: var(--color-text-muted);
    transition: color var(--transition-base);
}

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

.footer-bottom {
    padding-top: var(--space-xl);
    border-top: 1px solid var(--color-border);
    text-align: center;
}

.footer-bottom p {
    font-size: var(--font-size-sm);
    color: var(--color-text-muted);
}

/* ============================================
   Form States
   ============================================ */
.form-success {
    display: none;
    text-align: center;
    padding: var(--space-xl);
}

.form-success.show {
    display: block;
}

.form-success h3 {
    color: var(--color-primary);
    margin-bottom: var(--space-sm);
}

/* ============================================
   Responsive Styles
   ============================================ */
@media (max-width: 1024px) {
    .hero-container {
        grid-template-columns: 1fr;
        gap: var(--space-3xl);
    }

    .hero-content {
        max-width: 100%;
        text-align: center;
    }

    .hero-title {
        font-size: var(--font-size-4xl);
    }

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

    .steps-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

@media (max-width: 768px) {
    :root {
        --font-size-5xl: 2.5rem;
        --font-size-4xl: 2rem;
        --font-size-3xl: 1.75rem;
    }

    .hero {
        padding-top: calc(70px + var(--space-3xl));
    }

    .hero-visual {
        display: none;
    }

    .form-group {
        flex-direction: column;
    }

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

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

    .footer-container {
        grid-template-columns: 1fr;
        gap: var(--space-2xl);
    }

    .footer-links {
        flex-wrap: wrap;
        gap: var(--space-2xl);
    }

    .footer-column {
        min-width: 120px;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 var(--space-md);
    }

    .hero-title {
        font-size: var(--font-size-3xl);
    }

    .section-title {
        font-size: var(--font-size-2xl);
    }

    .feature-card,
    .step-card {
        padding: var(--space-xl);
    }

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

/* ============================================
   Animations
   ============================================ */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.hero-content {
    animation: fadeInUp 0.6s ease-out;
}

.dashboard-preview {
    animation: fadeInUp 0.6s ease-out 0.2s both;
}

/* Smooth loading */
.feature-card,
.step-card {
    opacity: 0;
    animation: fadeInUp 0.5s ease-out forwards;
}

.feature-card:nth-child(1) { animation-delay: 0.1s; }
.feature-card:nth-child(2) { animation-delay: 0.2s; }
.feature-card:nth-child(3) { animation-delay: 0.3s; }
.feature-card:nth-child(4) { animation-delay: 0.4s; }
.feature-card:nth-child(5) { animation-delay: 0.5s; }
.feature-card:nth-child(6) { animation-delay: 0.6s; }

.step-card:nth-child(1) { animation-delay: 0.1s; }
.step-card:nth-child(2) { animation-delay: 0.2s; }
.step-card:nth-child(3) { animation-delay: 0.3s; }