/* ========================================
   Bitblix Website Styles
   Matches Figma Design
   ======================================== */

/* === CSS Variables === */
:root {
    --primary-black: #000000;
    --primary-white: #ffffff;
    --light-gray: #f5f5f5;
    --medium-gray: #e8e8e8;
    --dark-gray: #666666;
    --text-gray: #888888;
    --blue-primary: #007AFF;
    --blue-dark: #0051D5;
    --success-green: #34C759;
    --border-radius: 12px;
    --transition: all 0.3s ease;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', 'Helvetica', 'Arial', sans-serif;
    color: var(--primary-black);
    line-height: 1.6;
    background-color: var(--primary-white);
}

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

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

/* === Typography === */
h1 {
    font-size: 3rem;
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: 1rem;
}

h2 {
    font-size: 2rem;
    font-weight: 600;
    line-height: 1.3;
    margin-bottom: 1rem;
}

h3 {
    font-size: 1.5rem;
    font-weight: 600;
    margin-bottom: 0.75rem;
}

p {
    font-size: 1rem;
    line-height: 1.6;
    color: var(--dark-gray);
}

/* === Navigation === */
.navbar {
    background-color: var(--primary-white);
    padding: 1.5rem 0;
    position: sticky;
    top: 0;
    z-index: 1000;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.05);
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 1.25rem;
    font-weight: 600;
}

.logo img {
    width: 32px;
    height: 32px;
}

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

.nav-links a {
    color: var(--dark-gray);
    font-size: 0.95rem;
    font-weight: 500;
    transition: var(--transition);
}

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

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

/* Mobile menu toggle */
.menu-toggle {
    display: none;
    background: none;
    border: none;
    font-size: 1.5rem;
    cursor: pointer;
}

/* === Hero Section === */
.hero {
    background-color: var(--light-gray);
    padding: 6rem 2rem;
    text-align: center;
}

.hero-content {
    max-width: 800px;
    margin: 0 auto;
}

.hero h1 {
    margin-bottom: 1.5rem;
}

.hero p {
    font-size: 1.125rem;
    margin-bottom: 2rem;
}

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

/* === Buttons === */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.875rem 1.75rem;
    font-size: 0.95rem;
    font-weight: 600;
    border-radius: var(--border-radius);
    cursor: pointer;
    border: none;
    transition: var(--transition);
}

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

.btn-primary:hover {
    background-color: #333;
    transform: translateY(-2px);
}

.btn-secondary {
    background-color: var(--primary-white);
    color: var(--primary-black);
    border: 1px solid var(--medium-gray);
}

.btn-secondary:hover {
    background-color: var(--light-gray);
}

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

.btn-blue:hover {
    background-color: var(--blue-dark);
    transform: translateY(-2px);
}

/* === Container === */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
}

.section {
    padding: 5rem 2rem;
}

.section-title {
    text-align: center;
    margin-bottom: 3rem;
}

.section-title h2 {
    margin-bottom: 0.5rem;
}

.section-title p {
    font-size: 1.125rem;
}

/* === Features Grid === */
.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.feature-card {
    background-color: var(--primary-white);
    padding: 2rem;
    border-radius: var(--border-radius);
    border: 1px solid var(--medium-gray);
    text-align: center;
    transition: var(--transition);
}

.feature-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.1);
}

.feature-icon {
    width: 60px;
    height: 60px;
    margin: 0 auto 1.5rem;
    background-color: var(--light-gray);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
}

.feature-card h3 {
    margin-bottom: 1rem;
}

/* === App Showcase === */
.app-showcase {
    background-color: var(--light-gray);
}

.app-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.app-card {
    background-color: var(--primary-white);
    border-radius: var(--border-radius);
    overflow: hidden;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
    transition: var(--transition);
}

.app-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.12);
}

.app-card-image {
    width: 100%;
    height: 200px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
}

.app-card-image img {
    max-width: 120px;
    max-height: 120px;
}

.badge {
    position: absolute;
    top: 1rem;
    left: 1rem;
    background-color: var(--primary-black);
    color: var(--primary-white);
    padding: 0.375rem 0.75rem;
    border-radius: 6px;
    font-size: 0.75rem;
    font-weight: 600;
}

.app-card-content {
    padding: 1.5rem;
}

.app-card-content h3 {
    margin-bottom: 0.75rem;
}

.app-card-content p {
    margin-bottom: 1.5rem;
    font-size: 0.95rem;
}

.app-card-buttons {
    display: flex;
    gap: 0.75rem;
    flex-wrap: wrap;
}

.app-card-buttons .btn {
    flex: 1;
    justify-content: center;
    padding: 0.75rem 1rem;
    font-size: 0.875rem;
}

/* === Coming Soon Card === */
.coming-soon-card {
    opacity: 0.6;
    border: 2px dashed var(--medium-gray);
}

.coming-soon-card .app-card-image {
    background: var(--light-gray);
    color: var(--text-gray);
    font-size: 1.125rem;
    font-weight: 600;
}

/* === iPhone Mockup Section === */
.mockup-section {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
    margin-top: 3rem;
}

.mockup-content h2 {
    margin-bottom: 1rem;
}

.mockup-content ul {
    list-style: none;
    margin: 2rem 0;
}

.mockup-content li {
    display: flex;
    align-items: flex-start;
    gap: 0.75rem;
    margin-bottom: 1rem;
    font-size: 0.95rem;
}

.mockup-content li::before {
    content: "✓";
    background-color: var(--primary-black);
    color: var(--primary-white);
    width: 20px;
    height: 20px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.75rem;
    flex-shrink: 0;
}

.mockup-image {
    position: relative;
    max-width: 400px;
    margin: 0 auto;
}

.iphone-frame {
    background-color: var(--medium-gray);
    border-radius: 40px;
    padding: 2rem;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.2);
}

.iphone-frame img {
    border-radius: 20px;
}

/* === Footer === */
.footer {
    background-color: var(--primary-black);
    color: var(--primary-white);
    padding: 3rem 2rem 2rem;
}

.footer-content {
    max-width: 1200px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: 2fr 1fr 1fr;
    gap: 3rem;
    margin-bottom: 2rem;
}

.footer-about h3 {
    margin-bottom: 1rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.footer-about img {
    width: 32px;
    height: 32px;
    filter: invert(1);
}

.footer-about p {
    color: #999;
    font-size: 0.95rem;
}

.footer-links h4 {
    margin-bottom: 1rem;
    font-size: 1rem;
    font-weight: 600;
}

.footer-links ul {
    list-style: none;
}

.footer-links li {
    margin-bottom: 0.75rem;
}

.footer-links a {
    color: #999;
    font-size: 0.95rem;
}

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

.footer-bottom {
    max-width: 1200px;
    margin: 0 auto;
    padding-top: 2rem;
    border-top: 1px solid #333;
    text-align: center;
    color: #999;
    font-size: 0.875rem;
}

/* === Responsive Design === */
@media (max-width: 768px) {
    h1 {
        font-size: 2rem;
    }

    h2 {
        font-size: 1.5rem;
    }

    .nav-links {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background-color: var(--primary-white);
        flex-direction: column;
        padding: 1rem 2rem;
        box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
    }

    .nav-links.active {
        display: flex;
    }

    .menu-toggle {
        display: block;
    }

    .hero {
        padding: 4rem 1.5rem;
    }

    .section {
        padding: 3rem 1.5rem;
    }

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

    .mockup-section .mockup-content {
        order: 2;
    }

    .mockup-section .mockup-image {
        order: 1;
    }

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

    .hero-buttons {
        flex-direction: column;
    }

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

@media (max-width: 480px) {
    .container {
        padding: 0 1rem;
    }

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

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