/* ==========================================================================
   Kevin Magnan - Personal Website
   Minimalist Design System
   ========================================================================== */

/* --------------------------------------------------------------------------
   1. Custom Properties (Design Tokens)
   -------------------------------------------------------------------------- */
:root {
    /* Primary - Warm Copper/Terracotta */
    --copper-500: #B87333;
    --copper-600: #9A5F2A;
    --copper-700: #7D4C22;
    --copper-400: #D4956A;
    --copper-300: #E5B896;
    --copper-100: #FDF4ED;

    /* Neutrals - Warm undertones */
    --stone-900: #1C1917;
    --stone-800: #292524;
    --stone-700: #44403C;
    --stone-600: #57534E;
    --stone-500: #78716C;
    --stone-400: #A8A29E;
    --stone-300: #D6D3D1;
    --stone-200: #E7E5E4;
    --stone-100: #F5F5F4;
    --white: #FAFAF9;

    /* Semantic - Dark Theme (Warm Charcoal) */
    --text-primary: var(--white);
    --text-secondary: var(--stone-300);
    --text-muted: var(--stone-400);
    --bg-page: var(--stone-900);
    --bg-section: var(--stone-800);
    --accent: var(--copper-400);
    --accent-hover: var(--copper-500);
    --border: var(--stone-700);

    /* Typography */
    --font-heading: 'Fraunces', Georgia, serif;
    --font-body: 'Source Serif 4', Georgia, serif;
    --font-mono: 'JetBrains Mono', ui-monospace, monospace;

    /* Fluid type scale */
    --text-xs: clamp(0.75rem, 0.7rem + 0.25vw, 0.875rem);
    --text-sm: clamp(0.875rem, 0.8rem + 0.35vw, 1rem);
    --text-base: clamp(1rem, 0.9rem + 0.5vw, 1.125rem);
    --text-lg: clamp(1.125rem, 1rem + 0.6vw, 1.25rem);
    --text-xl: clamp(1.25rem, 1.1rem + 0.75vw, 1.5rem);
    --text-2xl: clamp(1.5rem, 1.2rem + 1.5vw, 2rem);
    --text-3xl: clamp(2rem, 1.5rem + 2.5vw, 3rem);
    --text-4xl: clamp(2.5rem, 2rem + 3vw, 4rem);

    /* Spacing */
    --space-1: 0.25rem;
    --space-2: 0.5rem;
    --space-3: 0.75rem;
    --space-4: 1rem;
    --space-6: 1.5rem;
    --space-8: 2rem;
    --space-12: 3rem;
    --space-16: 4rem;
    --space-20: 5rem;
    --space-24: 6rem;
    --space-32: 8rem;

    /* Layout */
    --max-width-prose: 70ch;
    --max-width-content: 900px;
    --max-width-wide: 1200px;

    /* Transitions */
    --transition-fast: 150ms ease;
    --transition-base: 200ms ease;
    --transition-slow: 300ms ease;
}

/* --------------------------------------------------------------------------
   2. Reset & Base
   -------------------------------------------------------------------------- */
*, *::before, *::after {
    box-sizing: border-box;
}

* {
    margin: 0;
    padding: 0;
}

html {
    scroll-behavior: smooth;
    -webkit-text-size-adjust: 100%;
}

body {
    font-family: var(--font-body);
    font-size: var(--text-base);
    line-height: 1.7;
    color: var(--text-primary);
    background-color: var(--bg-page);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

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

input, button, textarea, select {
    font: inherit;
}

p, h1, h2, h3, h4, h5, h6 {
    overflow-wrap: break-word;
}

/* --------------------------------------------------------------------------
   3. Typography
   -------------------------------------------------------------------------- */
h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-heading);
    font-weight: 600;
    line-height: 1.2;
    color: var(--text-primary);
}

h1 { font-size: var(--text-4xl); }
h2 { font-size: var(--text-3xl); }
h3 { font-size: var(--text-2xl); }
h4 { font-size: var(--text-xl); }
h5 { font-size: var(--text-lg); }
h6 { font-size: var(--text-base); }

p {
    margin-bottom: var(--space-4);
}

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

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

a:hover {
    color: var(--accent-hover);
}

strong {
    font-weight: 600;
}

code {
    font-family: var(--font-mono);
    font-size: 0.9em;
    background: var(--stone-100);
    padding: 0.15em 0.4em;
    border-radius: 4px;
}

pre {
    font-family: var(--font-mono);
    font-size: var(--text-sm);
    background: var(--stone-900);
    color: var(--stone-100);
    padding: var(--space-6);
    border-radius: 8px;
    overflow-x: auto;
    margin: var(--space-6) 0;
}

pre code {
    background: none;
    padding: 0;
}

blockquote {
    border-left: 3px solid var(--accent);
    padding-left: var(--space-6);
    margin: var(--space-6) 0;
    font-style: italic;
    color: var(--text-secondary);
}

/* --------------------------------------------------------------------------
   4. Layout
   -------------------------------------------------------------------------- */
.site-main {
    min-height: 100vh;
}

.container {
    width: 100%;
    max-width: var(--max-width-content);
    margin: 0 auto;
    padding: 0 var(--space-6);
}

.container-wide {
    max-width: var(--max-width-wide);
}

section {
    padding: var(--space-12) var(--space-6);
}

@media (min-width: 768px) {
    section {
        padding: var(--space-16) var(--space-6);
    }
}

/* --------------------------------------------------------------------------
   5. Section Label
   -------------------------------------------------------------------------- */
.section-label {
    font-family: var(--font-body);
    font-size: var(--text-sm);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--accent);
    margin-bottom: var(--space-6);
}

/* --------------------------------------------------------------------------
   6. Hero Section
   -------------------------------------------------------------------------- */
.hero {
    min-height: 50vh;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    padding: var(--space-8) var(--space-6);
}

.hero-content {
    max-width: var(--max-width-content);
}

.hero-photo-wrapper {
    position: relative;
    width: 180px;
    height: 180px;
    margin: 0 auto var(--space-6);
    animation: fadeUp 0.6s ease-out both;
}

.hero-photo-wrapper::before {
    content: '';
    position: absolute;
    inset: -3px;
    border-radius: 50%;
    border: 3px solid var(--copper-500);
    animation: pulse-ring 3s ease-in-out infinite;
}

@keyframes pulse-ring {
    0%, 100% {
        opacity: 1;
        transform: scale(1);
    }
    50% {
        opacity: 0.6;
        transform: scale(1.03);
    }
}

@keyframes spin {
    from { transform: rotate(0deg); }
    to { transform: rotate(360deg); }
}

.hero-photo {
    width: 100%;
    height: 100%;
    border-radius: 50%;
    object-fit: cover;
    object-position: center 60%;
}

@media (min-width: 768px) {
    .hero-photo-wrapper {
        width: 200px;
        height: 200px;
    }
}

.hero-name {
    font-family: var(--font-heading);
    font-size: var(--text-4xl);
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: var(--space-4);
    letter-spacing: -0.02em;
    animation: fadeUp 0.8s ease-out both;
}

.hero-tagline {
    font-family: var(--font-body);
    font-size: var(--text-xl);
    color: var(--text-secondary);
    max-width: 65ch;
    margin: 0 auto;
    line-height: 1.6;
    animation: fadeUp 0.8s ease-out 0.15s both;
}

/* --------------------------------------------------------------------------
   7. About Section
   -------------------------------------------------------------------------- */
.about {
    max-width: var(--max-width-content);
    margin: 0 auto;
}

.about-content {
    display: flex;
    flex-direction: column;
    gap: var(--space-8);
}

@media (min-width: 768px) {
    .about-content {
        flex-direction: row;
        gap: var(--space-12);
        align-items: flex-start;
    }
}

.about-photo {
    width: 220px;
    height: 220px;
    border-radius: 50%;
    object-fit: cover;
    object-position: center 60%;
    border: 3px solid var(--accent);
    flex-shrink: 0;
    align-self: center;
}

@media (min-width: 768px) {
    .about-photo {
        width: 280px;
        height: 280px;
        align-self: flex-start;
    }
}

.story {
    font-size: var(--text-lg);
    line-height: 1.8;
    color: var(--text-secondary);
}

.story p {
    margin-bottom: var(--space-6);
}

.story-lead {
    font-size: var(--text-xl);
    color: var(--text-primary);
    font-weight: 500;
    border-left: 3px solid var(--accent);
    padding-left: var(--space-4);
}

/* --------------------------------------------------------------------------
   8. Divider
   -------------------------------------------------------------------------- */
.divider {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-4);
    padding: var(--space-4) 0;
}

.divider::before,
.divider::after {
    content: '';
    width: 60px;
    height: 1px;
    background: var(--border);
}

.divider-dot {
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: var(--accent);
}

/* --------------------------------------------------------------------------
   9. Writing Section (Blog)
   -------------------------------------------------------------------------- */
.writing {
    max-width: var(--max-width-content);
    margin: 0 auto;
}

.post-list {
    list-style: none;
}

.post-item {
    border-bottom: 1px solid var(--border);
}

.post-item:first-child {
    border-top: 1px solid var(--border);
}

.post-link {
    display: flex;
    justify-content: space-between;
    align-items: baseline;
    gap: var(--space-4);
    padding: var(--space-4) 0;
    text-decoration: none;
    color: var(--text-primary);
    transition: color var(--transition-fast);
}

.post-link:hover {
    color: var(--accent);
}

.post-link:hover .post-title {
    color: var(--accent);
}

.post-title {
    font-family: var(--font-body);
    font-size: var(--text-base);
    font-weight: 500;
    transition: color var(--transition-fast);
    position: relative;
}

.post-title::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--accent);
    transition: width 0.3s ease;
}

.post-link:hover .post-title::after {
    width: 100%;
}

.post-meta {
    font-size: var(--text-sm);
    color: var(--text-muted);
    white-space: nowrap;
    flex-shrink: 0;
}

.view-all {
    display: inline-block;
    margin-top: var(--space-6);
    font-size: var(--text-sm);
    color: var(--accent);
    font-weight: 500;
}

.view-all:hover {
    text-decoration: underline;
}

/* --------------------------------------------------------------------------
   10. Work Section (Portfolio)
   -------------------------------------------------------------------------- */
.work {
    background: var(--stone-900);
    color: var(--stone-100);
}

.work-content {
    max-width: var(--max-width-wide);
    margin: 0 auto;
}

.work .section-label {
    color: var(--copper-400);
}

.project-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--space-6);
}

@media (min-width: 640px) {
    .project-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (min-width: 900px) {
    .project-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

.project-card {
    background: var(--bg-section);
    border-radius: 12px;
    overflow: hidden;
    border: 1px solid transparent;
    transition: transform var(--transition-base), box-shadow var(--transition-base), border-color var(--transition-base);
}

.project-card:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 16px rgba(0, 0, 0, 0.2);
    border-color: var(--copper-500);
}

.project-card-image {
    width: 100%;
    aspect-ratio: 16 / 10;
    object-fit: cover;
    background: var(--stone-700);
}

.project-card-image-placeholder {
    width: 100%;
    aspect-ratio: 16 / 10;
    background: linear-gradient(135deg, var(--border) 0%, var(--bg-section) 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--stone-500);
    font-size: var(--text-sm);
}

.project-card-body {
    padding: var(--space-4) var(--space-4) var(--space-6);
}

.project-card-title {
    font-family: var(--font-heading);
    font-size: var(--text-lg);
    font-weight: 600;
    color: var(--copper-400);
    margin-bottom: var(--space-2);
}

.project-card-desc {
    font-size: var(--text-sm);
    color: var(--stone-400);
    line-height: 1.6;
    margin-bottom: var(--space-3);
}

.project-card-meta {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    flex-wrap: wrap;
}

.project-badge {
    font-size: 0.7rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    padding: 0.25em 0.6em;
    border-radius: 4px;
    background: var(--copper-500);
    color: white;
}

.project-badge--prototype {
    background: #f97316;
}

.project-badge--live {
    background: #22c55e;
}

.project-badge--client {
    background: var(--stone-600);
}

.project-card-link {
    font-size: var(--text-sm);
    color: var(--copper-400);
    font-weight: 500;
    text-decoration: none;
}

.project-card-link:hover {
    text-decoration: underline;
    color: var(--copper-300);
}

/* --------------------------------------------------------------------------
   11. Contact Section
   -------------------------------------------------------------------------- */
.contact {
    max-width: var(--max-width-content);
    margin: 0 auto;
    text-align: center;
}

.contact-text {
    font-size: var(--text-lg);
    color: var(--text-secondary);
    margin-bottom: var(--space-6);
}

.contact-email {
    font-weight: 500;
}

.social-links {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: var(--space-6);
}

.social-links a {
    font-size: var(--text-sm);
    color: var(--text-secondary);
    font-weight: 500;
    transition: color var(--transition-fast);
}

.social-links a:hover {
    color: var(--accent);
}

/* --------------------------------------------------------------------------
   12. Footer
   -------------------------------------------------------------------------- */
.site-footer {
    padding: var(--space-12) var(--space-6);
    text-align: center;
    color: var(--text-muted);
    font-size: var(--text-sm);
}

/* --------------------------------------------------------------------------
   13. Site Header (for subpages)
   -------------------------------------------------------------------------- */
.site-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--space-6);
    max-width: var(--max-width-wide);
    margin: 0 auto;
}

.site-logo {
    font-family: var(--font-heading);
    font-size: var(--text-lg);
    font-weight: 600;
    color: var(--text-primary);
}

.site-logo:hover {
    color: var(--accent);
}

.site-nav {
    display: flex;
    gap: var(--space-6);
}

.site-nav a {
    font-size: var(--text-sm);
    color: var(--text-secondary);
    font-weight: 500;
}

.site-nav a:hover {
    color: var(--accent);
}

/* --------------------------------------------------------------------------
   14. Blog Post Page
   -------------------------------------------------------------------------- */
.post-header {
    max-width: var(--max-width-content);
    margin: 0 auto;
    padding: var(--space-16) var(--space-6) var(--space-8);
    text-align: center;
}

.post-header h1 {
    font-size: var(--text-3xl);
    margin-bottom: var(--space-4);
}

.post-date {
    font-size: var(--text-sm);
    color: var(--text-muted);
}

.post-content {
    max-width: var(--max-width-content);
    margin: 0 auto;
    padding: 0 var(--space-6) var(--space-16);
}

.post-content h2 {
    font-size: var(--text-2xl);
    margin-top: var(--space-12);
    margin-bottom: var(--space-4);
}

.post-content h3 {
    font-size: var(--text-xl);
    margin-top: var(--space-8);
    margin-bottom: var(--space-3);
}

.post-content ul, .post-content ol {
    margin: var(--space-4) 0;
    padding-left: var(--space-6);
}

.post-content li {
    margin-bottom: var(--space-2);
}

.post-content img {
    border-radius: 8px;
    margin: var(--space-6) 0;
}

/* --------------------------------------------------------------------------
   15. Blog List Page
   -------------------------------------------------------------------------- */
.blog-page {
    max-width: var(--max-width-content);
    margin: 0 auto;
    padding: var(--space-16) var(--space-6);
}

.blog-page h1 {
    font-size: var(--text-3xl);
    margin-bottom: var(--space-12);
}

/* --------------------------------------------------------------------------
   15b. Single Post Page
   -------------------------------------------------------------------------- */
.post-page {
    max-width: var(--max-width-content);
    margin: 0 auto;
    padding: var(--space-12) var(--space-6) var(--space-16);
}

.post-page .post-header {
    text-align: center;
    margin-bottom: var(--space-12);
    padding: 0;
}

.post-page .post-header h1 {
    font-size: var(--text-3xl);
    margin-bottom: var(--space-4);
}

.post-nav {
    margin-top: var(--space-12);
    padding-top: var(--space-8);
    border-top: 1px solid var(--border);
}

.post-nav a {
    font-size: var(--text-sm);
    font-weight: 500;
}

/* --------------------------------------------------------------------------
   16. Animations
   -------------------------------------------------------------------------- */
@keyframes fadeUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.animate-on-scroll {
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

.animate-on-scroll.is-visible {
    opacity: 1;
    transform: translateY(0);
}

/* Staggered animation delays */
.delay-1 { animation-delay: 0.1s; }
.delay-2 { animation-delay: 0.2s; }
.delay-3 { animation-delay: 0.3s; }
.delay-4 { animation-delay: 0.4s; }

/* --------------------------------------------------------------------------
   17. Responsive
   -------------------------------------------------------------------------- */
@media (max-width: 640px) {
    .hero {
        min-height: 60vh;
    }

    .post-link {
        flex-direction: column;
        align-items: flex-start;
        gap: var(--space-1);
    }

    .post-meta {
        font-size: var(--text-xs);
    }

    .social-links {
        gap: var(--space-4);
    }
}

/* --------------------------------------------------------------------------
   18. Print Styles
   -------------------------------------------------------------------------- */
@media print {
    body {
        font-size: 12pt;
        color: #000;
        background: #fff;
    }

    .site-header,
    .site-footer,
    .social-links {
        display: none;
    }
}