/* ========================================
   SkallTech Option B - Modern Tech/SaaS
   ======================================== */

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

:root {
    --bg: #0a0a0a;
    --surface: #111111;
    --card: #1a1a1a;
    --card-border: #2a2a2a;
    --text-primary: #ededed;
    --text-secondary: #888888;
    --text-muted: #555555;
    --accent-purple: #7c3aed;
    --accent-cyan: #06b6d4;
    --glow: rgba(124, 58, 237, 0.15);
    --font: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
}

html {
    scroll-behavior: smooth;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    font-family: var(--font);
    background-color: var(--bg);
    color: var(--text-primary);
    line-height: 1.6;
    overflow-x: hidden;
    /* Subtle dot grid */
    background-image: radial-gradient(rgba(255, 255, 255, 0.03) 1px, transparent 1px);
    background-size: 24px 24px;
}

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

.container {
    max-width: 1120px;
    margin: 0 auto;
    padding: 0 24px;
}

/* --- Gradient Text Utility --- */
.gradient-text {
    background: linear-gradient(135deg, var(--accent-purple), var(--accent-cyan));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* --- Navigation --- */
.nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    padding: 20px 0;
    transition: all 0.3s ease;
}

.nav.scrolled {
    padding: 12px 0;
    background: rgba(10, 10, 10, 0.7);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

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

.nav-logo {
    font-size: 1.25rem;
    font-weight: 700;
    letter-spacing: -0.02em;
    color: var(--text-primary);
    transition: opacity 0.2s;
}

.nav-logo span {
    background: linear-gradient(135deg, var(--accent-purple), var(--accent-cyan));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.nav-logo:hover {
    opacity: 0.8;
}

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

.nav-link {
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--text-secondary);
    transition: color 0.2s;
    display: flex;
    align-items: center;
    gap: 8px;
}

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

.pill {
    display: inline-block;
    padding: 2px 8px;
    font-size: 0.625rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    background: linear-gradient(135deg, var(--accent-purple), var(--accent-cyan));
    color: #fff;
    border-radius: 999px;
}

.nav-cta-link {
    font-size: 0.875rem;
    font-weight: 600;
    color: #fff;
    padding: 8px 16px;
    border-radius: 999px;
    background: linear-gradient(135deg, var(--accent-purple), var(--accent-cyan));
    transition: transform 0.2s, box-shadow 0.2s;
    white-space: nowrap;
}

.nav-cta-link:hover {
    transform: translateY(-1px);
    box-shadow: 0 8px 24px var(--glow);
}

/* --- Buttons --- */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 14px 28px;
    font-size: 0.9375rem;
    font-weight: 600;
    border-radius: 999px;
    transition: all 0.25s ease;
    cursor: pointer;
    border: 1px solid transparent;
    letter-spacing: -0.01em;
}

.btn-primary {
    background: linear-gradient(135deg, var(--accent-purple), var(--accent-cyan));
    color: #fff;
    box-shadow: 0 4px 20px rgba(124, 58, 237, 0.25);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 32px rgba(124, 58, 237, 0.35);
}

.btn-secondary {
    background: rgba(255, 255, 255, 0.03);
    color: var(--text-primary);
    border-color: var(--card-border);
}

.btn-secondary:hover {
    background: rgba(255, 255, 255, 0.06);
    border-color: rgba(6, 182, 212, 0.4);
    transform: translateY(-2px);
}

.hero-actions {
    display: flex;
    gap: 12px;
    justify-content: center;
    margin-top: 40px;
    flex-wrap: wrap;
}

/* --- Hero --- */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
}

.hero-bg {
    position: absolute;
    inset: 0;
    pointer-events: none;
}

.hero-photo {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    opacity: 0.18;
    filter: saturate(0.7) contrast(1.05);
    mask-image: radial-gradient(ellipse at 50% 50%, rgba(0,0,0,1) 10%, rgba(0,0,0,0.3) 75%, transparent 100%);
    -webkit-mask-image: radial-gradient(ellipse at 50% 50%, rgba(0,0,0,1) 10%, rgba(0,0,0,0.3) 75%, transparent 100%);
}

.hero-orb {
    position: absolute;
    width: 600px;
    height: 600px;
    border-radius: 50%;
    background: radial-gradient(circle, var(--accent-purple) 0%, transparent 70%);
    opacity: 0.12;
    top: 10%;
    left: 50%;
    transform: translateX(-50%);
    animation: orbFloat 12s ease-in-out infinite;
    filter: blur(80px);
}

.hero-orb--secondary {
    width: 400px;
    height: 400px;
    background: radial-gradient(circle, var(--accent-cyan) 0%, transparent 70%);
    opacity: 0.08;
    top: 30%;
    left: 60%;
    animation: orbFloat2 15s ease-in-out infinite;
    filter: blur(60px);
}

.hero-mouse-glow {
    position: absolute;
    width: 500px;
    height: 500px;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(124, 58, 237, 0.08) 0%, transparent 70%);
    pointer-events: none;
    transform: translate(-50%, -50%);
    opacity: 0;
    transition: opacity 0.3s ease;
}

@keyframes orbFloat {
    0%, 100% { transform: translateX(-50%) translateY(0); }
    33% { transform: translateX(-45%) translateY(-30px); }
    66% { transform: translateX(-55%) translateY(20px); }
}

@keyframes orbFloat2 {
    0%, 100% { transform: translateY(0) translateX(0); }
    50% { transform: translateY(-40px) translateX(-20px); }
}

.hero-content {
    position: relative;
    text-align: center;
    z-index: 2;
}

.hero-title {
    font-size: clamp(3rem, 8vw, 5.5rem);
    font-weight: 800;
    letter-spacing: -0.04em;
    line-height: 1.05;
    margin-bottom: 24px;
}

.hero-subtitle {
    font-size: clamp(1rem, 2vw, 1.25rem);
    color: var(--text-secondary);
    max-width: 520px;
    margin: 0 auto;
    font-weight: 400;
    line-height: 1.7;
}

/* --- Stats Bar --- */
.stats {
    padding: 48px 0;
    border-top: 1px solid var(--card-border);
    border-bottom: 1px solid var(--card-border);
    background: var(--surface);
}

.stats-inner {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 48px;
}

.stat {
    text-align: center;
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.stat-value {
    font-size: 1.5rem;
    font-weight: 700;
    letter-spacing: -0.02em;
    background: linear-gradient(135deg, var(--accent-purple), var(--accent-cyan));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.stat-label {
    font-size: 0.8125rem;
    color: var(--text-secondary);
    font-weight: 500;
}

.stat-divider {
    width: 1px;
    height: 40px;
    background: var(--card-border);
}

/* --- Sections --- */
.section {
    padding: 120px 0;
}

.section-title {
    font-size: clamp(1.75rem, 4vw, 2.5rem);
    font-weight: 700;
    letter-spacing: -0.03em;
    margin-bottom: 56px;
    text-align: center;
}

/* --- Cards Grid --- */
.cards-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}

.cards-grid--four {
    grid-template-columns: repeat(4, 1fr);
}

.card {
    position: relative;
    background: var(--card);
    border: 1px solid var(--card-border);
    border-radius: 16px;
    padding: 40px 32px;
    transition: all 0.4s ease;
    overflow: hidden;
}

.card::before {
    content: '';
    position: absolute;
    inset: 0;
    border-radius: 16px;
    padding: 1px;
    background: linear-gradient(135deg, var(--accent-purple), var(--accent-cyan));
    -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
    -webkit-mask-composite: xor;
    mask-composite: exclude;
    opacity: 0;
    transition: opacity 0.4s ease;
}

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

.card:hover {
    transform: translateY(-4px);
    box-shadow: 0 8px 40px var(--glow);
    border-color: transparent;
}

.card-icon {
    margin-bottom: 20px;
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(124, 58, 237, 0.08);
    border-radius: 12px;
}

.card-title {
    font-size: 1.125rem;
    font-weight: 600;
    letter-spacing: -0.01em;
    margin-bottom: 12px;
}

.card-text {
    font-size: 0.9375rem;
    color: var(--text-secondary);
    line-height: 1.7;
}

/* --- Projects --- */
.section-intro {
    max-width: 640px;
    margin: -32px auto 56px;
    text-align: center;
    color: var(--text-secondary);
    font-size: 1.0625rem;
    line-height: 1.7;
}

.projects-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 24px;
}

.project-card {
    position: relative;
    background: var(--card);
    border: 1px solid var(--card-border);
    border-radius: 20px;
    padding: 36px 32px;
    display: flex;
    flex-direction: column;
    transition: all 0.4s ease;
    overflow: hidden;
}

.project-card::before {
    content: '';
    position: absolute;
    inset: 0;
    border-radius: 20px;
    padding: 1px;
    background: linear-gradient(135deg, var(--accent-purple), var(--accent-cyan));
    -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
    -webkit-mask-composite: xor;
    mask-composite: exclude;
    opacity: 0;
    transition: opacity 0.4s ease;
    pointer-events: none;
}

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

.project-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 12px 48px var(--glow);
    border-color: transparent;
}

.project-header {
    display: flex;
    align-items: center;
    gap: 16px;
    margin-bottom: 20px;
}

.project-logo {
    width: 56px;
    height: 56px;
    object-fit: contain;
    flex-shrink: 0;
}

.project-logo--rounded {
    border-radius: 14px;
    object-fit: cover;
}

.project-heading {
    min-width: 0;
}

.project-name {
    font-size: 1.375rem;
    font-weight: 700;
    letter-spacing: -0.02em;
    margin-bottom: 4px;
}

.project-tagline {
    font-size: 0.875rem;
    color: var(--text-secondary);
    line-height: 1.4;
}

.project-blurb {
    font-size: 0.9375rem;
    color: var(--text-secondary);
    line-height: 1.7;
    margin-bottom: 24px;
}

.project-features {
    list-style: none;
    margin: 0 0 28px;
    padding: 0;
    display: flex;
    flex-direction: column;
    gap: 14px;
    flex-grow: 1;
}

.project-features li {
    font-size: 0.875rem;
    color: var(--text-secondary);
    line-height: 1.6;
}

.project-feature-tag {
    display: inline-block;
    padding: 2px 10px;
    margin-right: 8px;
    font-size: 0.6875rem;
    font-weight: 600;
    letter-spacing: 0.03em;
    color: var(--accent-cyan);
    background: rgba(6, 182, 212, 0.08);
    border: 1px solid rgba(6, 182, 212, 0.2);
    border-radius: 999px;
    vertical-align: 1px;
}

.project-stack {
    font-size: 0.8125rem;
    color: var(--text-muted);
    line-height: 1.6;
    padding: 14px 16px;
    margin-bottom: 20px;
    background: rgba(255, 255, 255, 0.02);
    border: 1px solid var(--card-border);
    border-radius: 10px;
}

.project-stack-label {
    display: inline-block;
    margin-right: 8px;
    font-size: 0.6875rem;
    font-weight: 600;
    letter-spacing: 0.05em;
    text-transform: uppercase;
    color: var(--accent-cyan);
}

.project-meta {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding-top: 20px;
    border-top: 1px solid var(--card-border);
    gap: 16px;
    flex-wrap: wrap;
}

.project-platforms {
    font-size: 0.75rem;
    font-weight: 500;
    letter-spacing: 0.03em;
    color: var(--text-muted);
    text-transform: uppercase;
}

.project-link {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--text-primary);
    transition: color 0.2s, gap 0.2s;
}

.project-link:hover {
    color: var(--accent-cyan);
    gap: 10px;
}

/* --- About --- */
.about-content {
    max-width: 720px;
    text-align: center;
}

.about-image {
    margin: 32px auto 40px;
    max-width: 640px;
    aspect-ratio: 16/9;
    border-radius: 20px;
    overflow: hidden;
    border: 1px solid var(--card-border);
    box-shadow: 0 30px 60px rgba(0, 0, 0, 0.4);
}

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

.about-text {
    font-size: 1.125rem;
    color: var(--text-secondary);
    line-height: 1.8;
}

/* --- Contact --- */
.section--contact {
    padding: 100px 0;
}

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

.contact-title {
    font-size: clamp(2rem, 5vw, 3rem);
    font-weight: 700;
    letter-spacing: -0.03em;
    margin-bottom: 16px;
}

.contact-intro {
    font-size: 1.0625rem;
    color: var(--text-secondary);
    max-width: 560px;
    margin: 0 auto 32px;
    line-height: 1.7;
}

.contact-checklist {
    list-style: none;
    max-width: 480px;
    margin: 0 auto 40px;
    padding: 20px 24px;
    text-align: left;
    background: rgba(255, 255, 255, 0.02);
    border: 1px solid var(--card-border);
    border-radius: 12px;
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.contact-checklist li {
    font-size: 0.9375rem;
    color: var(--text-secondary);
    padding-left: 24px;
    position: relative;
    line-height: 1.6;
}

.contact-checklist li::before {
    content: '';
    position: absolute;
    left: 0;
    top: 8px;
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--accent-purple), var(--accent-cyan));
}

.contact-email {
    font-size: clamp(1.125rem, 2.5vw, 1.5rem);
    font-weight: 500;
    color: var(--text-secondary);
    position: relative;
    display: inline-block;
    transition: color 0.3s;
}

.contact-email::after {
    content: '';
    position: absolute;
    left: 0;
    bottom: -4px;
    width: 100%;
    height: 2px;
    background: linear-gradient(90deg, var(--accent-purple), var(--accent-cyan));
    transform: scaleX(0);
    transform-origin: left;
    transition: transform 0.4s ease;
}

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

.contact-email:hover::after {
    transform: scaleX(1);
}

/* --- Footer --- */
.footer {
    padding: 32px 0;
    border-top: 1px solid transparent;
    border-image: linear-gradient(90deg, transparent, var(--accent-purple), var(--accent-cyan), transparent) 1;
}

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

.footer p {
    font-size: 0.8125rem;
    color: var(--text-muted);
}

/* --- Fade-up Animation --- */
.fade-up {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.7s ease, transform 0.7s ease;
}

.fade-up.visible {
    opacity: 1;
    transform: translateY(0);
}

/* --- Responsive --- */
@media (max-width: 960px) {
    .cards-grid--four {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .nav-links {
        gap: 20px;
    }

    .nav-cta-link {
        display: none;
    }

    .cards-grid,
    .cards-grid--four {
        grid-template-columns: 1fr;
        gap: 16px;
    }

    .stats-inner {
        flex-direction: column;
        gap: 24px;
    }

    .stat-divider {
        width: 40px;
        height: 1px;
    }

    .section {
        padding: 80px 0;
    }

    .section-title {
        margin-bottom: 40px;
    }

    .projects-grid {
        grid-template-columns: 1fr;
        gap: 16px;
    }

    .project-card {
        padding: 28px 24px;
    }

    .section-intro {
        margin: -16px auto 40px;
        font-size: 1rem;
    }

    .hero-orb {
        width: 350px;
        height: 350px;
    }

    .hero-orb--secondary {
        width: 250px;
        height: 250px;
    }
}

@media (max-width: 480px) {
    .nav-links {
        gap: 14px;
    }

    .nav-link {
        font-size: 0.8125rem;
    }

    .hero-title {
        font-size: 2.5rem;
    }

    .card {
        padding: 32px 24px;
    }

    .section--contact {
        padding: 64px 0;
    }
}