/* Global CSS Variables & Theme Setup - LIGHT MODE */
:root {
    --color-bg: #F5F4F1; /* Warm cream background from app */
    --color-bg-alt: #FFFFFF; /* Pure white for alternate sections */
    --color-surface: #FFFFFF; /* Cards background */
    --color-surface-hover: #FAF9F6;
    --color-border: rgba(0, 0, 0, 0.07);
    --color-border-glow: rgba(26, 158, 120, 0.2);
    
    /* Branding Accent Colors matching the app */
    --color-primary: #1A9E78; /* Mint emerald green */
    --color-primary-rgb: 26, 158, 120;
    --color-ai: #5B4FCF; /* Purple */
    --color-ai-rgb: 91, 79, 207;
    --color-warning: #D48A0C; /* Orange/Yellow */
    --color-danger: #E05252; /* Red */
    --color-blue: #3D5A80;
    
    /* Text Colors */
    --color-text-primary: #141412; /* Charcoal black */
    --color-text-secondary: #6B6A66; /* Warm gray */
    --color-text-muted: #8E8D89;
    
    /* Typography */
    --font-heading: 'Outfit', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
    --font-body: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
    
    /* Effects & Layout */
    --border-radius-lg: 20px;
    --border-radius-md: 14px;
    --border-radius-sm: 8px;
    --shadow-premium: 0 10px 30px rgba(0, 0, 0, 0.04), 0 1px 3px rgba(0, 0, 0, 0.02);
    --shadow-float: 0 12px 24px rgba(26, 158, 120, 0.12);
    --shadow-ai: 0 12px 24px rgba(91, 79, 207, 0.1);
    
    --transition-smooth: all 0.35s cubic-bezier(0.16, 1, 0.3, 1);
    --transition-fast: all 0.2s ease;
    
    scroll-behavior: smooth;
}

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

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

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

img, svg {
    display: block;
    max-width: 100%;
}

.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}

.container-narrow {
    max-width: 800px;
}

.hero-container-narrow {
    max-width: 760px;
}

/* Header & Navigation */
.header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    background: rgba(245, 244, 241, 0.85); /* Blurred warm surface */
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border-bottom: 1px solid var(--color-border);
    z-index: 1000;
}

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

.logo {
    display: flex;
    align-items: center;
    gap: 12px;
    font-family: var(--font-heading);
    font-size: 24px;
    font-weight: 700;
    color: var(--color-text-primary);
}

.logo-img {
    width: 36px;
    height: 36px;
    border-radius: 9px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 32px;
}

.nav-links a {
    font-size: 15px;
    font-weight: 500;
    color: var(--color-text-secondary);
}

.nav-links a:hover,
.nav-links a.active {
    color: var(--color-primary);
}

.nav-links a.nav-secondary {
    opacity: 0.8;
}

.nav-cta .btn-nav {
    display: inline-block;
    padding: 10px 20px;
    border-radius: 30px;
    background: var(--color-primary);
    border: 1px solid var(--color-primary);
    color: #ffffff;
    font-size: 14px;
    font-weight: 600;
    transition: var(--transition-fast);
    box-shadow: 0 4px 12px rgba(var(--color-primary-rgb), 0.1);
}

.nav-cta .btn-nav:hover {
    background: #148061;
    border-color: #148061;
    color: #ffffff;
    box-shadow: 0 4px 15px rgba(var(--color-primary-rgb), 0.25);
}

/* Mobile Menu Toggle */
.mobile-menu-toggle {
    display: none;
    flex-direction: column;
    justify-content: space-between;
    width: 24px;
    height: 18px;
    background: transparent;
    border: none;
    cursor: pointer;
    z-index: 1100;
}

.mobile-menu-toggle span {
    display: block;
    width: 100%;
    height: 2px;
    background-color: var(--color-text-primary);
    border-radius: 2px;
    transition: var(--transition-fast);
}

/* Mobile Nav Overlay */
.mobile-nav {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    background: var(--color-bg);
    z-index: 999;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 32px;
    opacity: 0;
    visibility: hidden;
    transition: var(--transition-smooth);
}

.mobile-nav.active {
    opacity: 1;
    visibility: visible;
}

.mobile-nav-link {
    font-family: var(--font-heading);
    font-size: 24px;
    font-weight: 600;
    color: var(--color-text-secondary);
}

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

.btn-download-mobile {
    padding: 14px 28px;
    border-radius: 40px;
    background: var(--color-primary);
    color: #ffffff;
    font-weight: 700;
    font-size: 16px;
    box-shadow: 0 8px 24px rgba(var(--color-primary-rgb), 0.25);
}

/* Badges */
.badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 6px 16px;
    border-radius: 30px;
    background: rgba(var(--color-primary-rgb), 0.08);
    border: 1px solid rgba(var(--color-primary-rgb), 0.15);
    color: var(--color-primary);
    font-size: 13px;
    font-weight: 600;
    margin-bottom: 24px;
}

.badge-dot {
    width: 6px;
    height: 6px;
    background-color: var(--color-primary);
    border-radius: 50%;
    box-shadow: 0 0 8px var(--color-primary);
}

.badge-ai {
    background: rgba(var(--color-ai-rgb), 0.08);
    border-color: rgba(var(--color-ai-rgb), 0.15);
    color: var(--color-ai);
}

/* Typography & Layouts */
h1, h2, h3, h4 {
    font-family: var(--font-heading);
    color: var(--color-text-primary);
    font-weight: 800;
    line-height: 1.15;
}

.gradient-text {
    background: linear-gradient(135deg, var(--color-primary), #32c697);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}

.gradient-text-ai {
    background: linear-gradient(135deg, var(--color-ai), #766bf3);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}

.text-center {
    text-align: center;
}

/* Hero Section */
.hero-section {
    padding: 180px 0 120px;
    position: relative;
    background: linear-gradient(to bottom, #ffffff 0%, var(--color-bg) 100%);
}

.hero-section h1 {
    font-size: 58px;
    letter-spacing: -0.02em;
    margin-bottom: 24px;
    color: var(--color-text-primary);
}

.hero-lead {
    font-size: 19px;
    color: var(--color-text-secondary);
    margin-bottom: 40px;
    line-height: 1.6;
}

.hero-actions {
    display: flex;
    justify-content: center;
}

/* App Store Button (Premium Black - Fixed Vector Logo) */
.app-store-btn {
    display: inline-flex;
    align-items: center;
    gap: 12px;
    background: #141412; /* charcoal black matching text */
    color: #ffffff;
    padding: 14px 32px;
    border-radius: 14px;
    border: 1px solid rgba(255, 255, 255, 0.05);
    transition: var(--transition-smooth);
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.15);
}

.app-store-btn:hover {
    transform: translateY(-2px);
    background: #000000;
    box-shadow: 0 15px 30px rgba(0, 0, 0, 0.22), 0 0 15px rgba(var(--color-primary-rgb), 0.15);
}

.apple-logo {
    fill: #ffffff;
}

.btn-text {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    line-height: 1.2;
}

.btn-subtext {
    font-size: 10px;
    text-transform: uppercase;
    font-weight: 600;
    color: #a0a0a0;
    letter-spacing: 0.5px;
}

.btn-maintext {
    font-size: 18px;
    font-weight: 700;
    font-family: var(--font-heading);
}

/* Features Section */
.features-section {
    padding: 100px 0;
    background-color: #ffffff; /* Contrast Section */
    position: relative;
    border-top: 1px solid var(--color-border);
    border-bottom: 1px solid var(--color-border);
}

.section-header {
    margin-bottom: 64px;
}

.section-header h2 {
    font-size: 40px;
    letter-spacing: -0.01em;
    margin-bottom: 16px;
}

.section-header p {
    font-size: 17px;
    color: var(--color-text-secondary);
    max-width: 600px;
    margin: 0 auto;
}

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

.feature-card {
    background: var(--color-bg); /* warm cream cards on white */
    border: 1px solid var(--color-border);
    border-radius: var(--border-radius-lg);
    padding: 40px 32px;
    transition: var(--transition-smooth);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.01);
}

.feature-card:hover {
    transform: translateY(-6px);
    background: #ffffff;
    border-color: rgba(var(--color-primary-rgb), 0.3);
    box-shadow: var(--shadow-float);
}

.feature-icon {
    width: 48px;
    height: 48px;
    border-radius: 12px;
    background: #ffffff;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 24px;
    box-shadow: 0 2px 8px rgba(0,0,0,0.03);
}

.feature-icon.text-primary { color: var(--color-primary); }
.feature-icon.text-orange { color: var(--color-warning); }
.feature-icon.text-purple { color: var(--color-ai); }
.feature-icon.text-blue { color: var(--color-blue); }
.feature-icon.text-red { color: var(--color-danger); }

.feature-card h3 {
    font-size: 21px;
    margin-bottom: 14px;
    font-weight: 700;
}

.feature-card p {
    font-size: 15px;
    color: var(--color-text-secondary);
    line-height: 1.6;
}

/* AI Assistant & Highlight Section */
.ai-section {
    padding: 100px 0;
    background-color: var(--color-bg);
}

.ai-highlight-text {
    max-width: 800px;
    margin: 0 auto;
}

.ai-highlight-text h2 {
    font-size: 40px;
    margin-bottom: 20px;
}

.ai-lead {
    font-size: 18px;
    color: var(--color-text-secondary);
    margin-bottom: 40px;
}

.ai-info-cards {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 24px;
    text-align: left;
}

.ai-info-box {
    background: #ffffff;
    border: 1px solid var(--color-border);
    border-radius: var(--border-radius-md);
    padding: 32px;
    box-shadow: var(--shadow-premium);
    transition: var(--transition-fast);
}

.ai-info-box:hover {
    border-color: rgba(var(--color-ai-rgb), 0.3);
    box-shadow: var(--shadow-ai);
}

.ai-info-box h4 {
    font-size: 18px;
    color: var(--color-ai);
    margin-bottom: 12px;
}

.ai-info-box p {
    font-size: 14px;
    color: var(--color-text-secondary);
}

/* Support & Contact Section */
.support-section {
    padding: 100px 0;
    background-color: #ffffff;
    border-top: 1px solid var(--color-border);
}

.support-box {
    display: grid;
    grid-template-columns: 1fr 1.2fr;
    gap: 60px;
    background: var(--color-bg);
    border: 1px solid var(--color-border);
    border-radius: var(--border-radius-lg);
    padding: 56px;
    box-shadow: var(--shadow-premium);
}

.support-info h2 {
    font-size: 36px;
    margin-bottom: 16px;
}

.support-info p {
    color: var(--color-text-secondary);
    font-size: 16px;
    margin-bottom: 32px;
}

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

.contact-item {
    display: flex;
    align-items: center;
    gap: 16px;
}

.contact-icon {
    width: 44px;
    height: 44px;
    border-radius: 10px;
    background: #ffffff;
    border: 1px solid var(--color-border);
    color: var(--color-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 20px;
}

.contact-label {
    display: block;
    font-size: 12px;
    color: var(--color-text-muted);
    font-weight: 600;
    text-transform: uppercase;
}

.contact-link {
    font-weight: 600;
    font-size: 16px;
    color: var(--color-text-primary);
}

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

/* Form Styles */
.support-form {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

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

.form-group label {
    font-size: 13px;
    font-weight: 600;
    color: var(--color-text-secondary);
}

.form-group input,
.form-group textarea {
    background: #ffffff;
    border: 1px solid var(--color-border);
    border-radius: var(--border-radius-sm);
    padding: 14px 16px;
    color: var(--color-text-primary);
    font-family: var(--font-body);
    font-size: 14px;
    transition: var(--transition-fast);
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 10px rgba(var(--color-primary-rgb), 0.08);
}

.btn-submit {
    background: var(--color-primary);
    color: #ffffff;
    font-family: var(--font-heading);
    font-weight: 700;
    font-size: 16px;
    border: none;
    padding: 14px 28px;
    border-radius: var(--border-radius-sm);
    cursor: pointer;
    transition: var(--transition-fast);
    box-shadow: 0 4px 12px rgba(var(--color-primary-rgb), 0.15);
}

.btn-submit:hover {
    background: #148061;
    box-shadow: 0 6px 16px rgba(var(--color-primary-rgb), 0.25);
}

.form-success-message {
    text-align: center;
    padding: 40px 20px;
    animation: fadeIn 0.4s ease-out;
}

.success-icon {
    width: 64px;
    height: 64px;
    border-radius: 50%;
    background: rgba(var(--color-primary-rgb), 0.1);
    border: 2px solid var(--color-primary);
    color: var(--color-primary);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-size: 32px;
    font-weight: bold;
    margin-bottom: 20px;
}

.form-success-message h3 {
    font-size: 24px;
    margin-bottom: 12px;
}

.form-success-message p {
    color: var(--color-text-secondary);
    font-size: 15px;
}

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

/* Privacy Policy Layout */
.privacy-section {
    padding: 160px 0 100px;
}

.privacy-card {
    background: #ffffff;
    border: 1px solid var(--color-border);
    border-radius: var(--border-radius-lg);
    padding: 56px;
    box-shadow: var(--shadow-premium);
}

.privacy-card h1 {
    font-size: 40px;
    margin-bottom: 8px;
    letter-spacing: -0.01em;
}

.last-updated {
    font-size: 13px;
    color: var(--color-text-muted);
    font-weight: 500;
}

.divider {
    border: 0;
    height: 1px;
    background: var(--color-border);
    margin: 24px 0 32px;
}

.policy-block {
    margin-bottom: 32px;
}

.policy-block h2 {
    font-size: 20px;
    margin-bottom: 12px;
    font-weight: 700;
}

.policy-block p {
    font-size: 15px;
    color: var(--color-text-secondary);
    margin-bottom: 16px;
}

.policy-block ul {
    list-style: square;
    padding-left: 20px;
    margin-bottom: 16px;
    color: var(--color-text-secondary);
    font-size: 15px;
}

.policy-block li {
    margin-bottom: 8px;
}

.warning-block {
    background: rgba(212, 138, 12, 0.05);
    border-left: 4px solid var(--color-warning);
    padding: 24px;
    border-radius: 0 12px 12px 0;
}

.warning-block h2 {
    color: var(--color-warning);
}

.contact-email {
    font-size: 16px !important;
}

.contact-email a {
    color: var(--color-primary);
    font-weight: 600;
}

.contact-email a:hover {
    text-decoration: underline;
}

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

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr;
    gap: 40px;
    margin-bottom: 60px;
}

.footer-brand p {
    color: var(--color-text-secondary);
    font-size: 14px;
    margin-top: 16px;
    max-width: 280px;
}

.footer-links {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.footer-links h4 {
    font-size: 16px;
    font-weight: 700;
    margin-bottom: 8px;
}

.footer-links a {
    font-size: 14px;
    color: var(--color-text-secondary);
}

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

.footer-bottom {
    border-top: 1px solid var(--color-border);
    padding-top: 32px;
    text-align: center;
}

.footer-bottom p {
    font-size: 13px;
    color: var(--color-text-muted);
}

/* Media Queries (Responsive Styling) */
@media (max-width: 1024px) {
    .hero-section h1 {
        font-size: 48px;
    }

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

    .support-box {
        grid-template-columns: 1fr;
        padding: 40px;
    }
}

@media (max-width: 768px) {
    .nav-links, .nav-cta {
        display: none;
    }

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

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

    .section-header h2 {
        font-size: 32px;
    }

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

    .ai-info-cards {
        grid-template-columns: 1fr;
    }

    .support-info h2 {
        font-size: 28px;
    }

    .privacy-card {
        padding: 32px 24px;
    }

    .privacy-card h1 {
        font-size: 28px;
    }

    .footer-grid {
        grid-template-columns: 1fr;
        gap: 32px;
    }
}