/* ============================================
   VELUM FORGE - CSS STYLESHEET
   A sleek studio site with stacked color panels
   ============================================ */

/* CSS Custom Properties */
:root {
    /* Color Palette */
    --color-ink: #1a1a1a;
    --color-charcoal: #2d2d2d;
    --color-slate: #4a4a4a;
    --color-stone: #8b8b8b;
    --color-mist: #c4c4c4;
    --color-pearl: #f0ede8;
    --color-cream: #faf8f5;
    --color-white: #ffffff;
    
    /* Accent Colors */
    --color-velum: #d4c4b0;
    --color-forge: #8b7355;
    --color-ember: #c9a87c;
    
    /* Panel Colors */
    --panel-hero: var(--color-ink);
    --panel-about: var(--color-cream);
    --panel-articles: var(--color-charcoal);
    --panel-gallery: var(--color-pearl);
    --panel-contact: var(--color-ink);
    
    /* Typography */
    --font-serif: 'Cormorant Garamond', Georgia, serif;
    --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    
    /* Spacing */
    --space-xs: 0.5rem;
    --space-sm: 1rem;
    --space-md: 2rem;
    --space-lg: 4rem;
    --space-xl: 6rem;
    --space-2xl: 10rem;
    
    /* Transitions */
    --transition-smooth: 0.4s cubic-bezier(0.25, 0.46, 0.45, 0.94);
    --transition-bounce: 0.6s cubic-bezier(0.68, -0.55, 0.265, 1.55);
}

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

html {
    scroll-behavior: smooth;
    font-size: 16px;
}

body {
    font-family: var(--font-sans);
    font-weight: 300;
    line-height: 1.7;
    color: var(--color-ink);
    background: var(--color-ink);
    overflow-x: hidden;
}

/* Typography */
h1, h2, h3, h4 {
    font-family: var(--font-serif);
    font-weight: 400;
    line-height: 1.2;
}

h1 {
    font-size: clamp(2.5rem, 6vw, 5rem);
    letter-spacing: -0.02em;
}

h2 {
    font-size: clamp(2rem, 4vw, 3.5rem);
    margin-bottom: var(--space-lg);
}

h3 {
    font-size: clamp(1.5rem, 2.5vw, 2rem);
    margin-bottom: var(--space-sm);
}

h4 {
    font-size: 1.1rem;
    font-family: var(--font-sans);
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    margin-bottom: var(--space-sm);
}

p {
    margin-bottom: var(--space-sm);
    max-width: 65ch;
}

.lead {
    font-size: 1.25rem;
    font-family: var(--font-serif);
    font-style: italic;
    line-height: 1.8;
}

/* Container */
.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--space-md);
}

/* Panels - Stacked Color Sections */
.panel {
    min-height: 100vh;
    padding: var(--space-xl) 0;
    display: flex;
    flex-direction: column;
    justify-content: center;
}

/* ============================================
   ANIMATED HEADINGS - CSS-only underline/pulse
   ============================================ */

.animated-heading {
    position: relative;
    display: inline-block;
    padding-bottom: 0.5rem;
}

.animated-heading::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 2px;
    background: currentColor;
    transform: scaleX(0);
    transform-origin: right;
    animation: underline-grow 1.2s ease-out forwards;
    animation-delay: 0.3s;
}

@keyframes underline-grow {
    0% {
        transform: scaleX(0);
        transform-origin: left;
    }
    100% {
        transform: scaleX(1);
        transform-origin: left;
    }
}

/* Pulsing effect on hover */
.animated-heading:hover::after {
    animation: pulse-line 1.5s ease-in-out infinite;
}

@keyframes pulse-line {
    0%, 100% {
        opacity: 1;
        transform: scaleX(1);
    }
    50% {
        opacity: 0.5;
        transform: scaleX(0.95);
    }
}

/* Animated underline for inline elements */
.animated-underline {
    position: relative;
    display: inline-block;
    text-decoration: none;
    color: inherit;
}

.animated-underline::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    width: 100%;
    height: 1px;
    background: currentColor;
    transform: scaleX(0);
    transform-origin: right;
    transition: transform var(--transition-smooth);
}

.animated-underline:hover::after {
    transform: scaleX(1);
    transform-origin: left;
    animation: pulse-underline 2s ease-in-out infinite;
}

@keyframes pulse-underline {
    0%, 100% {
        opacity: 1;
    }
    50% {
        opacity: 0.4;
    }
}

/* ============================================
   HERO SECTION
   ============================================ */

.panel-hero {
    background: var(--panel-hero);
    color: var(--color-cream);
    position: relative;
    padding-top: var(--space-md);
}

.nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--space-md);
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
}

.logo {
    font-family: var(--font-serif);
    font-size: 1.5rem;
    letter-spacing: 0.05em;
    color: var(--color-velum);
}

.nav-links {
    display: flex;
    list-style: none;
    gap: var(--space-md);
}

.nav-links a {
    color: var(--color-mist);
    text-decoration: none;
    font-size: 0.875rem;
    letter-spacing: 0.05em;
    text-transform: uppercase;
    transition: color var(--transition-smooth);
    position: relative;
}

.nav-links a::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 100%;
    height: 1px;
    background: var(--color-velum);
    transform: scaleX(0);
    transform-origin: right;
    transition: transform var(--transition-smooth);
}

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

.nav-links a:hover::after {
    transform: scaleX(1);
    transform-origin: left;
}

.hero-content {
    text-align: center;
    padding: var(--space-2xl) var(--space-md);
}

.hero-content h1 {
    margin-bottom: var(--space-md);
    color: var(--color-cream);
}

.hero-tagline {
    font-family: var(--font-serif);
    font-style: italic;
    font-size: 1.25rem;
    color: var(--color-velum);
    max-width: none;
}

/* Scroll Indicator */
.scroll-indicator {
    position: absolute;
    bottom: var(--space-lg);
    left: 50%;
    transform: translateX(-50%);
}

.scroll-indicator span {
    display: block;
    width: 1px;
    height: 60px;
    background: linear-gradient(to bottom, var(--color-velum), transparent);
    animation: scroll-pulse 2s ease-in-out infinite;
}

@keyframes scroll-pulse {
    0%, 100% {
        opacity: 1;
        transform: scaleY(1);
    }
    50% {
        opacity: 0.3;
        transform: scaleY(0.6);
    }
}

/* ============================================
   ABOUT SECTION
   ============================================ */

.panel-about {
    background: var(--panel-about);
    color: var(--color-ink);
}

.about-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-xl);
    align-items: center;
}

.about-text p {
    color: var(--color-slate);
}

.about-text .lead {
    color: var(--color-ink);
    margin-bottom: var(--space-md);
}

.about-philosophy blockquote {
    font-family: var(--font-serif);
    font-size: 1.75rem;
    font-style: italic;
    color: var(--color-forge);
    border-left: 3px solid var(--color-velum);
    padding-left: var(--space-md);
    line-height: 1.5;
}

/* ============================================
   ARTICLES SECTION
   ============================================ */

.panel-articles {
    background: var(--panel-articles);
    color: var(--color-cream);
    padding: var(--space-2xl) 0;
}

.panel-articles h2 {
    color: var(--color-velum);
}

.article-card {
    display: grid;
    grid-template-columns: auto 1fr;
    gap: var(--space-lg);
    padding: var(--space-xl) 0;
    border-bottom: 1px solid var(--color-slate);
}

.article-card:last-child {
    border-bottom: none;
}

.article-number {
    font-family: var(--font-serif);
    font-size: 4rem;
    color: var(--color-slate);
    line-height: 1;
    opacity: 0.5;
}

.article-content h3 {
    color: var(--color-cream);
    display: inline-block;
}

.article-content h3::after {
    background: var(--color-velum);
}

.article-date {
    font-size: 0.875rem;
    color: var(--color-stone);
    text-transform: uppercase;
    letter-spacing: 0.1em;
    margin-bottom: var(--space-md);
}

.article-content p {
    color: var(--color-mist);
}

.article-principles {
    margin-top: var(--space-lg);
    padding: var(--space-md);
    background: rgba(255, 255, 255, 0.03);
    border-left: 2px solid var(--color-forge);
}

.article-principles h4 {
    color: var(--color-velum);
    margin-bottom: var(--space-sm);
}

.article-principles ul {
    list-style: none;
}

.article-principles li {
    padding: var(--space-xs) 0;
    color: var(--color-mist);
    position: relative;
    padding-left: var(--space-md);
}

.article-principles li::before {
    content: '—';
    position: absolute;
    left: 0;
    color: var(--color-forge);
}

/* ============================================
   GALLERY SECTION
   ============================================ */

.panel-gallery {
    background: var(--panel-gallery);
    color: var(--color-ink);
    padding: var(--space-2xl) 0;
}

.gallery-intro {
    font-family: var(--font-serif);
    font-style: italic;
    font-size: 1.25rem;
    color: var(--color-slate);
    margin-bottom: var(--space-xl);
}

.gallery-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--space-md);
}

.gallery-item {
    position: relative;
    overflow: hidden;
    aspect-ratio: 3/2;
}

.gallery-item img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform var(--transition-smooth), filter var(--transition-smooth);
    filter: grayscale(30%);
}

.gallery-item:hover img {
    transform: scale(1.05);
    filter: grayscale(0%);
}

.gallery-item figcaption {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    padding: var(--space-sm);
    background: linear-gradient(to top, rgba(0,0,0,0.7), transparent);
    color: var(--color-cream);
    font-size: 0.875rem;
    font-family: var(--font-serif);
    font-style: italic;
    transform: translateY(100%);
    transition: transform var(--transition-smooth);
}

.gallery-item:hover figcaption {
    transform: translateY(0);
}

/* ============================================
   CONTACT SECTION
   ============================================ */

.panel-contact {
    background: var(--panel-contact);
    color: var(--color-cream);
    text-align: center;
    min-height: 60vh;
}

.panel-contact h2 {
    color: var(--color-velum);
}

.contact-lead {
    font-family: var(--font-serif);
    font-size: 1.5rem;
    font-style: italic;
    color: var(--color-mist);
    max-width: none;
    margin-bottom: var(--space-lg);
}

.contact-info {
    font-style: normal;
}

.contact-info a {
    font-size: 1.25rem;
    color: var(--color-velum);
    letter-spacing: 0.05em;
}

/* ============================================
   FOOTER
   ============================================ */

.footer {
    background: var(--color-charcoal);
    color: var(--color-stone);
    padding: var(--space-lg) 0;
    text-align: center;
}

.footer-logo {
    font-family: var(--font-serif);
    font-size: 1.25rem;
    color: var(--color-velum);
    margin-bottom: var(--space-xs);
}

.footer-tagline {
    font-family: var(--font-serif);
    font-style: italic;
    font-size: 0.875rem;
    color: var(--color-stone);
    margin-bottom: var(--space-md);
}

.footer-copy {
    font-size: 0.75rem;
    color: var(--color-slate);
}

/* ============================================
   RESPONSIVE DESIGN
   ============================================ */

@media (max-width: 1024px) {
    .gallery-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .about-grid {
        gap: var(--space-lg);
    }
}

@media (max-width: 768px) {
    .nav {
        flex-direction: column;
        gap: var(--space-sm);
        position: relative;
        padding: var(--space-md);
    }
    
    .nav-links {
        gap: var(--space-sm);
    }
    
    .panel-hero {
        padding-top: 0;
    }
    
    .hero-content {
        padding: var(--space-xl) var(--space-md);
    }
    
    .about-grid {
        grid-template-columns: 1fr;
    }
    
    .article-card {
        grid-template-columns: 1fr;
        gap: var(--space-md);
    }
    
    .article-number {
        font-size: 2.5rem;
    }
    
    .gallery-grid {
        grid-template-columns: 1fr;
    }
    
    .gallery-item figcaption {
        transform: translateY(0);
    }
}

@media (max-width: 480px) {
    :root {
        --space-xl: 4rem;
        --space-2xl: 6rem;
    }
    
    .nav-links {
        flex-wrap: wrap;
        justify-content: center;
    }
    
    h1 {
        font-size: 2rem;
    }
    
    h2 {
        font-size: 1.75rem;
    }
    
    .about-philosophy blockquote {
        font-size: 1.25rem;
    }
}

/* ============================================
   PRINT STYLES
   ============================================ */

@media print {
    .panel {
        min-height: auto;
        page-break-inside: avoid;
    }
    
    .nav, .scroll-indicator {
        display: none;
    }
    
    .gallery-item img {
        filter: none;
    }
}