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

:root {
    --primary-color: #007AFF;
    --primary-dark: #0051D5;
    --secondary-color: #5856D6;
    --text-primary: #FFFFFF;
    --text-secondary: rgba(255, 255, 255, 0.7);
    --text-tertiary: rgba(255, 255, 255, 0.5);
    --bg-primary: #000000;
    --bg-secondary: #0A0A0A;
    --bg-tertiary: #141414;
    --border-color: rgba(255, 255, 255, 0.1);
    --gradient-1: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    --gradient-2: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);
    --gradient-3: linear-gradient(135deg, #4facfe 0%, #00f2fe 100%);
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.3);
    --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.4);
    --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.5);
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    background: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
    overflow-x: hidden;
}

.internal-page main {
    padding-top: 24px;
}

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

/* Navigation */
.nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: rgba(0, 0, 0, 0.8);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border-color);
    z-index: 1000;
    padding: 16px 0;
}

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

.logo {
    font-size: 20px;
    font-weight: 700;
    color: var(--text-primary);
    text-decoration: none;
    background: var(--gradient-1);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.nav-links {
    display: flex;
    list-style: none;
    gap: 32px;
}

.nav-links a {
    color: var(--text-secondary);
    text-decoration: none;
    font-weight: 500;
    transition: color 0.3s ease;
    position: relative;
}

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

.nav-links a::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--primary-color);
    transition: width 0.3s ease;
}

.nav-links a:hover::after {
    width: 100%;
}

.mobile-menu-toggle {
    display: none;
    flex-direction: column;
    gap: 4px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 8px;
}

.mobile-menu-toggle span {
    width: 24px;
    height: 2px;
    background: var(--text-primary);
    transition: all 0.3s ease;
}

/* Hero Section */
.hero {
    min-height: calc(100vh - var(--brien-nav-height, 56px));
    display: flex;
    align-items: center;
    padding: 80px 0 80px;
    background: radial-gradient(ellipse at top, rgba(0, 122, 255, 0.1) 0%, transparent 50%);
}

.hero-compact {
    min-height: auto;
    padding: 48px 0 72px;
}

.eyebrow {
    color: var(--text-tertiary);
    text-transform: uppercase;
    letter-spacing: 0.08em;
    font-size: 12px;
    margin-bottom: 12px;
    font-weight: 600;
}

.hero .container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 64px;
    align-items: center;
}

.hero-title {
    font-size: 64px;
    font-weight: 700;
    line-height: 1.1;
    margin-bottom: 24px;
}

.gradient-text {
    background: var(--gradient-3);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-subtitle {
    font-size: 20px;
    color: var(--text-secondary);
    margin-bottom: 32px;
    line-height: 1.6;
}

.hero-buttons {
    display: flex;
    gap: 16px;
    flex-wrap: wrap;
}

.btn {
    padding: 14px 32px;
    border-radius: 12px;
    font-weight: 600;
    text-decoration: none;
    transition: all 0.3s ease;
    display: inline-block;
    border: 2px solid transparent;
}

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

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

.btn-secondary {
    background: transparent;
    color: var(--text-primary);
    border-color: var(--border-color);
}

.btn-secondary:hover {
    background: rgba(255, 255, 255, 0.05);
    border-color: var(--primary-color);
}

/* Code Window */
.code-window {
    background: var(--bg-tertiary);
    border-radius: 16px;
    overflow: hidden;
    box-shadow: var(--shadow-lg);
    border: 1px solid var(--border-color);
}

.code-header {
    background: var(--bg-secondary);
    padding: 12px 16px;
    display: flex;
    align-items: center;
    gap: 8px;
    border-bottom: 1px solid var(--border-color);
}

.dot {
    width: 12px;
    height: 12px;
    border-radius: 50%;
}

.dot.red { background: #ff5f56; }
.dot.yellow { background: #ffbd2e; }
.dot.green { background: #27c93f; }

.code-title {
    margin-left: 12px;
    font-size: 12px;
    color: var(--text-tertiary);
    font-family: 'Monaco', 'Courier New', monospace;
}

.code-content {
    padding: 24px;
    background: var(--bg-tertiary);
}

.code-content pre {
    margin: 0;
    font-family: 'Monaco', 'Courier New', monospace;
    font-size: 14px;
    line-height: 1.8;
    color: var(--text-primary);
}

.code-content .keyword {
    color: #ff79c6;
}

.code-content .type {
    color: #8be9fd;
}

/* Section Styles */
section {
    padding: 100px 0;
}

/* Keep app-card internal content compact */
.product-statement section {
    padding: 0;
}

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

.section-title {
    font-size: 48px;
    font-weight: 700;
    margin-bottom: 16px;
    background: var(--gradient-1);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.section-subtitle {
    font-size: 18px;
    color: var(--text-secondary);
}

/* About Section */
.about {
    background: var(--bg-secondary);
}

.live-tools {
    background: var(--bg-secondary);
}

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

.about-text p {
    font-size: 18px;
    color: var(--text-secondary);
    margin-bottom: 24px;
    line-height: 1.8;
}

.about-stats {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 32px;
    margin-top: 48px;
}

.stat {
    text-align: center;
    padding: 24px;
    background: var(--bg-tertiary);
    border-radius: 16px;
    border: 1px solid var(--border-color);
}

.stat-number {
    font-size: 36px;
    font-weight: 700;
    background: var(--gradient-3);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 8px;
}

.stat-label {
    font-size: 14px;
    color: var(--text-tertiary);
}

/* Projects Section */
.projects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 32px;
}

.project-card {
    background: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    padding: 32px;
    transition: all 0.3s ease;
}

.project-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-lg);
    border-color: var(--primary-color);
}

.project-icon {
    width: 48px;
    height: 48px;
    margin-bottom: 24px;
    color: var(--primary-color);
}

.project-icon svg {
    width: 100%;
    height: 100%;
}

.project-icon-image {
    color: transparent;
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 4px 14px rgba(0, 0, 0, 0.25);
}

.project-icon-image img {
    width: 100%;
    height: 100%;
    display: block;
    object-fit: cover;
}

.project-title {
    font-size: 24px;
    font-weight: 600;
    margin-bottom: 16px;
}

.project-description {
    color: var(--text-secondary);
    margin-bottom: 24px;
    line-height: 1.6;
}

.project-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.tag {
    padding: 6px 12px;
    background: rgba(0, 122, 255, 0.1);
    border: 1px solid rgba(0, 122, 255, 0.3);
    border-radius: 6px;
    font-size: 12px;
    color: var(--primary-color);
}

/* Apps hub (two-app portfolio) */
.apps-hub-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 32px;
    max-width: 960px;
    margin: 0 auto;
}

.app-card .app-card-highlights {
    list-style: disc;
    padding-left: 1.25rem;
    margin: 0 0 20px;
    color: var(--text-secondary);
    font-size: 15px;
    line-height: 1.6;
}

.app-card .app-card-highlights li {
    margin-bottom: 8px;
}

.app-card-bullets {
    list-style: disc;
    padding-left: 1.25rem;
    margin: 0 0 20px;
    color: var(--text-secondary);
    font-size: 15px;
    line-height: 1.55;
}

.app-card-bullets li {
    margin-bottom: 8px;
}

.app-card .project-title {
    margin-top: 12px;
}

.app-card-links {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
}

.single-card {
    max-width: 760px;
    margin: 0 auto;
}

.screenshot-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 24px;
}

.screenshot-placeholder {
    background: var(--bg-tertiary);
    border: 1px dashed var(--border-color);
    border-radius: 16px;
    padding: 24px;
    min-height: 180px;
}

.screenshot-placeholder h3 {
    font-size: 18px;
    margin-bottom: 8px;
}

.screenshot-placeholder p {
    color: var(--text-secondary);
    font-size: 14px;
}

.btn-inline {
    padding: 10px 20px;
    font-size: 14px;
}

.placeholder-note {
    font-size: 13px;
    color: var(--text-tertiary);
    font-style: italic;
    margin-bottom: 20px;
    line-height: 1.5;
}

.inline-link {
    color: var(--primary-color);
    text-decoration: none;
    font-weight: 600;
}

.inline-link:hover {
    text-decoration: underline;
}

.footer-link {
    color: var(--text-secondary);
    text-decoration: none;
}

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

/* Skills Section */
.skills {
    background: var(--bg-secondary);
}

.skills-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 32px;
}

.skill-category {
    background: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    padding: 32px;
}

.skill-category-title {
    font-size: 20px;
    font-weight: 600;
    margin-bottom: 24px;
    color: var(--primary-color);
}

.skill-items {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
}

.skill-item {
    padding: 10px 20px;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    font-size: 14px;
    color: var(--text-primary);
    transition: all 0.3s ease;
}

.skill-item:hover {
    background: rgba(0, 122, 255, 0.1);
    border-color: var(--primary-color);
    transform: translateY(-2px);
}

/* Contact Section */
.contact-content {
    max-width: 600px;
    margin: 0 auto;
    text-align: center;
}

.contact-info p {
    font-size: 18px;
    color: var(--text-secondary);
    margin-bottom: 32px;
    line-height: 1.8;
}

.contact-links {
    display: flex;
    justify-content: center;
    gap: 24px;
}

.contact-link {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 16px 32px;
    background: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    color: var(--text-primary);
    text-decoration: none;
    transition: all 0.3s ease;
}

.contact-link svg {
    width: 20px;
    height: 20px;
}

.contact-link:hover {
    background: rgba(0, 122, 255, 0.1);
    border-color: var(--primary-color);
    transform: translateY(-2px);
}

/* Footer */
.footer {
    background: var(--bg-secondary);
    border-top: 1px solid var(--border-color);
    padding: 32px 0;
}

.footer-content {
    text-align: center;
    color: var(--text-tertiary);
}

.footer-note {
    margin-top: 8px;
    font-size: 14px;
}

/* Responsive Design */
@media (max-width: 768px) {
    .nav-links {
        display: none;
    }

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

    .hero .container {
        grid-template-columns: 1fr;
        text-align: center;
    }

    .hero-title {
        font-size: 40px;
    }

    .hero-visual {
        order: -1;
    }

    .section-title {
        font-size: 36px;
    }

    .about-stats {
        grid-template-columns: 1fr;
    }

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

    .apps-hub-grid {
        grid-template-columns: 1fr;
    }

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

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

    .hero-buttons {
        justify-content: center;
    }
}

@media (max-width: 480px) {
    .hero-title {
        font-size: 32px;
    }

    .section-title {
        font-size: 28px;
    }

    .container {
        padding: 0 16px;
    }

    section {
        padding: 60px 0;
    }
}