/* TasteHub Landing Page - App-like Design */

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

:root {
    /* TasteHub App Colors - Dark Mode */
    --bg-primary: #121212;          /* iOS system dark background */
    --bg-secondary: #1C1C1E;        /* iOS system surface color */
    --bg-card: #2C2C2E;             /* iOS card background */
    --accent-orange: #FF8C00;       /* Orange accent */
    --accent-coral: #E56C4E;        /* Coral accent */
    --text-primary: #FFFFFF;        /* White text */
    --text-secondary: #D1D1D6;      /* Light gray text */
    --text-tertiary: rgba(255, 255, 255, 0.6); /* Dimmed white */
    --border-color: rgba(255, 255, 255, 0.08);
    --shadow: 0 8px 24px rgba(0, 0, 0, 0.3);
    --shadow-lg: 0 16px 48px rgba(0, 0, 0, 0.4);
    --border-radius: 16px;
    --border-radius-large: 24px;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, '.SF Pro Text', 'Inter', 'Segoe UI', Roboto, sans-serif;
    line-height: 1.6;
    color: var(--text-primary);
    background-color: var(--bg-primary);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* Container */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* Header */
.header {
    background: rgba(28, 28, 30, 0.85); /* iOS dark header background with transparency */
    color: var(--text-primary);
    padding: 1.5rem 0;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border-color);
    transition: all 0.3s ease;
}

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

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

.logo-container {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.logo-image {
    height: 40px;
    width: auto;
}

.logo-text {
    font-size: 1.75rem;
    font-weight: 800;
    letter-spacing: -0.5px;
    display: flex;
    align-items: center;
}

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

.logo-hub {
    color: var(--accent-orange); /* Orange accent like the app */
}

.nav-links {
    display: flex;
    list-style: none;
    gap: 2rem;
}

.nav-links a {
    color: var(--text-secondary);
    text-decoration: none;
    font-weight: 600;
    padding: 0.5rem 1rem;
    border-radius: 12px;
    transition: all 0.3s ease;
}

.nav-links a:hover {
    color: var(--accent-orange);
    background-color: var(--bg-card);
}

/* Language Switcher */
.language-switcher {
    display: flex;
    gap: 0.25rem;
    background: rgba(44, 44, 46, 0.6);
    padding: 0.25rem;
    border-radius: 10px;
    border: 1px solid var(--border-color);
}

.lang-btn {
    background: transparent;
    border: none;
    color: var(--text-secondary);
    padding: 0.375rem 0.75rem;
    border-radius: 8px;
    font-size: 0.875rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
}

.lang-btn:hover {
    color: var(--text-primary);
    background: rgba(255, 255, 255, 0.1);
}

.lang-btn.active {
    color: var(--text-primary);
    background: var(--accent-orange);
    box-shadow: 0 2px 8px rgba(255, 140, 0, 0.3);
}

/* Hero Section */
.hero {
    background: var(--bg-primary);
    color: var(--text-primary);
    padding: 140px 0 100px;
    text-align: center;
    margin-top: 90px;
    position: relative;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: 
        radial-gradient(circle at 20% 80%, var(--bg-secondary) 0%, transparent 50%),
        radial-gradient(circle at 80% 20%, var(--bg-secondary) 0%, transparent 50%);
    opacity: 0.4;
}

.hero-content {
    max-width: 900px;
    margin: 0 auto;
    position: relative;
    z-index: 1;
}

.coming-soon-badge {
    display: inline-block;
    background: var(--accent-orange);
    color: var(--text-primary);
    padding: 0.75rem 1.5rem;
    border-radius: var(--border-radius-large);
    font-size: 0.875rem;
    font-weight: 700;
    margin-bottom: 2.5rem;
    text-transform: uppercase;
    letter-spacing: 1px;
    box-shadow: var(--shadow);
}

.hero h1 {
    font-size: 4rem;
    font-weight: 900;
    margin-bottom: 2rem;
    line-height: 1.1;
    letter-spacing: -2px;
    background: linear-gradient(135deg, var(--text-primary) 0%, var(--text-secondary) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-subtitle {
    font-size: 1.375rem;
    margin-bottom: 3.5rem;
    color: var(--text-tertiary);
    line-height: 1.6;
    max-width: 700px;
    margin-left: auto;
    margin-right: auto;
}

.launch-info {
    background: rgba(44, 44, 46, 0.8); /* Dark card background */
    backdrop-filter: blur(25px);
    -webkit-backdrop-filter: blur(25px);
    border-radius: var(--border-radius);
    padding: 2rem;
    margin-top: 3rem;
    border: 1px solid var(--border-color);
    box-shadow: 
        0 12px 40px rgba(0, 0, 0, 0.3),
        0 1px 0 rgba(255, 255, 255, 0.1) inset;
    max-width: 450px;
    margin-left: auto;
    margin-right: auto;
}

.launch-info p {
    font-size: 1.125rem;
    font-weight: 600;
    margin: 0;
    color: var(--text-secondary);
}

/* Features Section */
.features {
    padding: 100px 0;
    background: var(--bg-secondary);
}

.features h2 {
    text-align: center;
    font-size: 3rem;
    font-weight: 800;
    margin-bottom: 5rem;
    color: var(--text-primary);
    letter-spacing: -1px;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 2rem;
    max-width: 1200px;
    margin: 0 auto;
}

.feature-card {
    background: rgba(44, 44, 46, 0.7); /* Dark card background like app */
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    padding: 2.5rem;
    border-radius: var(--border-radius);
    box-shadow: 
        0 8px 32px rgba(0, 0, 0, 0.3),
        0 1px 0 rgba(255, 255, 255, 0.1) inset;
    text-align: center;
    transition: all 0.4s cubic-bezier(0.25, 0.46, 0.45, 0.94);
    border: 1px solid var(--border-color);
    position: relative;
    overflow: hidden;
}

.feature-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, var(--accent-orange) 0%, var(--accent-coral) 100%);
    opacity: 0;
    transition: opacity 0.4s ease;
}

.feature-card:hover {
    transform: translateY(-12px) scale(1.02);
    box-shadow: 
        0 20px 60px rgba(0, 0, 0, 0.4),
        0 1px 0 rgba(255, 255, 255, 0.15) inset;
    background: rgba(44, 44, 46, 0.9);
}

.feature-card:hover::before {
    opacity: 1;
}

.feature-icon {
    font-size: 3.5rem;
    margin-bottom: 1.5rem;
    display: block;
    transition: transform 0.4s ease;
}

.feature-card:hover .feature-icon {
    transform: scale(1.1);
}

.feature-card h3 {
    font-size: 1.375rem;
    font-weight: 700;
    margin-bottom: 1.25rem;
    color: var(--text-primary);
    letter-spacing: -0.5px;
}

.feature-card p {
    color: var(--text-tertiary);
    line-height: 1.7;
    font-size: 1rem;
}

/* About Section */
.about {
    padding: 100px 0;
    background: var(--bg-primary);
}

.about-content {
    max-width: 800px;
    margin: 0 auto;
    text-align: center;
}

.about h2 {
    font-size: 3rem;
    font-weight: 800;
    margin-bottom: 3rem;
    color: var(--text-primary);
    letter-spacing: -1px;
}

.about p {
    font-size: 1.125rem;
    margin-bottom: 2rem;
    color: var(--text-tertiary);
    line-height: 1.8;
}

.about p:last-child {
    margin-bottom: 0;
}

.about strong {
    color: var(--text-primary);
    font-weight: 700;
}

/* About Us Section */
.about-us {
    padding: 100px 0;
    background: var(--bg-secondary);
    position: relative;
}

.about-us::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: 
        radial-gradient(circle at 30% 70%, var(--bg-card) 0%, transparent 40%),
        radial-gradient(circle at 70% 30%, rgba(255, 140, 0, 0.05) 0%, transparent 50%);
    opacity: 0.6;
}

.about-us-content {
    max-width: 900px;
    margin: 0 auto;
    text-align: center;
    position: relative;
    z-index: 1;
}

.about-us h2 {
    font-size: 3rem;
    font-weight: 800;
    margin-bottom: 3rem;
    color: var(--text-primary);
    letter-spacing: -1px;
}

.founders-intro {
    margin-bottom: 3rem;
}

.founders-intro p {
    font-size: 1.5rem;
    color: var(--text-secondary);
    line-height: 1.6;
    margin: 0;
}

.founders-intro strong {
    color: var(--accent-orange);
    font-weight: 700;
}

.story-content {
    margin-bottom: 4rem;
}

.story-content p {
    font-size: 1.125rem;
    margin-bottom: 2rem;
    color: var(--text-tertiary);
    line-height: 1.8;
    text-align: left;
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
    margin-bottom: 2rem;
}

.story-content p:last-child {
    margin-bottom: 0;
}

.story-content h3 {
    font-size: 1.75rem;
    font-weight: 700;
    margin-bottom: 1.5rem;
    color: var(--text-primary);
    letter-spacing: -0.5px;
    text-align: center;
    margin-top: 2rem;
}

.location-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.75rem;
    background: rgba(44, 44, 46, 0.8);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    padding: 1rem 2rem;
    border-radius: var(--border-radius);
    border: 1px solid var(--border-color);
    box-shadow: 
        0 8px 32px rgba(0, 0, 0, 0.2),
        0 1px 0 rgba(255, 255, 255, 0.1) inset;
    font-size: 1.125rem;
    font-weight: 600;
    color: var(--text-secondary);
}

.location-icon {
    font-size: 1.25rem;
}

/* Footer */
.footer {
    background: var(--bg-secondary);
    color: var(--text-primary);
    text-align: center;
    padding: 3rem 0;
    border-top: 1px solid var(--border-color);
}

.footer p {
    margin: 0;
    opacity: 0.8;
    font-weight: 500;
    color: var(--text-secondary);
}

/* Responsive Design */
@media (max-width: 768px) {
    .header {
        padding: 1rem 0;
    }

    .header-container {
        flex-direction: column;
        gap: 1.5rem;
    }

    .logo-image {
        height: 32px;
    }

    .logo-text {
        font-size: 1.5rem;
    }

    .nav-links {
        gap: 1rem;
    }
    
    nav {
        flex-direction: column;
        gap: 1rem;
    }
    
    .language-switcher {
        order: -1;
    }

    .hero {
        padding: 120px 0 80px;
        margin-top: 110px;
    }

    .hero h1 {
        font-size: 2.75rem;
        letter-spacing: -1px;
    }

    .hero-subtitle {
        font-size: 1.125rem;
        margin-bottom: 2.5rem;
    }

    .coming-soon-badge {
        padding: 0.625rem 1.25rem;
        font-size: 0.8rem;
        margin-bottom: 2rem;
    }

    .launch-info {
        padding: 1.5rem;
        margin-top: 2rem;
    }

    .features h2,
    .about h2 {
        font-size: 2.25rem;
        margin-bottom: 3.5rem;
    }

    .features-grid {
        grid-template-columns: 1fr;
        gap: 2rem;
    }

    .feature-card {
        padding: 2rem;
    }

    .features,
    .about,
    .about-us {
        padding: 80px 0;
    }

    .about-us h2 {
        font-size: 2.25rem;
        margin-bottom: 2.5rem;
    }

    .founders-intro p {
        font-size: 1.25rem;
    }

    .story-content p {
        font-size: 1rem;
        text-align: center;
    }

    .location-badge {
        padding: 0.75rem 1.5rem;
        font-size: 1rem;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 16px;
    }

    .hero h1 {
        font-size: 2.25rem;
        letter-spacing: -0.5px;
    }

    .hero-subtitle {
        font-size: 1rem;
        margin-bottom: 2rem;
    }

    .feature-card {
        padding: 1.75rem;
    }

    .features h2,
    .about h2 {
        font-size: 2rem;
    }

    .launch-info {
        padding: 1.25rem;
    }

    .about-us h2 {
        font-size: 2rem;
    }

    .founders-intro p {
        font-size: 1.125rem;
    }

    .story-content p {
        font-size: 0.9rem;
    }

    .location-badge {
        padding: 0.625rem 1.25rem;
        font-size: 0.9rem;
        flex-direction: column;
        gap: 0.5rem;
        text-align: center;
    }
}

/* Animation for smooth scrolling */
html {
    scroll-behavior: smooth;
}

/* Focus states for accessibility */
a:focus,
button:focus {
    outline: 2px solid var(--accent);
    outline-offset: 2px;
}

/* Screen reader only content */
.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}