/**
 * Santiago Rey Theme - Main Styles
 * Minimal & Elegant Design for Artist Portfolio
 *
 * @package SantiagoReyTheme
 * @since 1.0.0
 */

/* ==========================================================================
   CSS Custom Properties (Variables)
   ========================================================================== */

:root {
    /* Colors */
    --color-bg: #FAFAFA;
    --color-bg-alt: #FFFFFF;
    --color-text: #1A1A1A;
    --color-text-secondary: #666666;
    --color-text-muted: #999999;
    --color-accent: #000000;
    --color-border: #E5E5E5;
    --color-border-dark: #CCCCCC;

    /* Typography */
    --font-heading: 'Cormorant Garamond', Georgia, serif;
    --font-body: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;

    /* Font sizes */
    --text-xs: 0.75rem;
    --text-sm: 0.875rem;
    --text-base: 1rem;
    --text-lg: 1.125rem;
    --text-xl: 1.25rem;
    --text-2xl: 1.5rem;
    --text-3xl: 2rem;
    --text-4xl: 2.5rem;
    --text-5xl: 3.5rem;
    --text-6xl: 4.5rem;

    /* Spacing */
    --space-xs: 0.25rem;
    --space-sm: 0.5rem;
    --space-md: 1rem;
    --space-lg: 1.5rem;
    --space-xl: 2rem;
    --space-2xl: 3rem;
    --space-3xl: 4rem;
    --space-4xl: 6rem;
    --space-5xl: 8rem;

    /* Layout */
    --container-max: 1400px;
    --container-narrow: 900px;
    --header-height: 80px;

    /* Transitions */
    --transition-fast: 150ms ease;
    --transition-base: 300ms ease;
    --transition-slow: 500ms ease;

    /* Shadows */
    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.07);
    --shadow-lg: 0 10px 15px rgba(0, 0, 0, 0.1);
}

/* ==========================================================================
   Reset & Base
   ========================================================================== */

*,
*::before,
*::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    font-size: 16px;
    scroll-behavior: smooth;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    font-family: var(--font-body);
    font-size: var(--text-base);
    font-weight: 400;
    line-height: 1.6;
    color: var(--color-text);
    background-color: var(--color-bg);
    overflow-x: hidden;
}

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

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

ul, ol {
    list-style: none;
}

button {
    font-family: inherit;
    cursor: pointer;
    border: none;
    background: none;
}

/* Screen reader only */
.screen-reader-text {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

.skip-link:focus {
    position: fixed;
    top: var(--space-md);
    left: var(--space-md);
    z-index: 9999;
    padding: var(--space-sm) var(--space-md);
    background: var(--color-accent);
    color: var(--color-bg);
    clip: auto;
    width: auto;
    height: auto;
}

/* ==========================================================================
   Typography
   ========================================================================== */

h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-heading);
    font-weight: 400;
    line-height: 1.2;
    color: var(--color-text);
}

h1 { font-size: var(--text-5xl); }
h2 { font-size: var(--text-4xl); }
h3 { font-size: var(--text-2xl); }
h4 { font-size: var(--text-xl); }

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

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

/* ==========================================================================
   Layout
   ========================================================================== */

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

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

.site {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

.site-main {
    flex: 1;
}

/* ==========================================================================
   Header
   ========================================================================== */

.site-header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background-color: rgba(250, 250, 250, 0.95);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--color-border);
    transition: transform var(--transition-base), background-color var(--transition-base);
}

.site-header.is-hidden {
    transform: translateY(-100%);
}

.header__inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: var(--header-height);
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 var(--space-lg);
}

.site-title {
    font-family: var(--font-heading);
    font-size: var(--text-xl);
    font-weight: 500;
    letter-spacing: 0.02em;
    color: var(--color-text);
}

.site-title:hover {
    color: var(--color-text-secondary);
}

.site-logo img {
    max-height: 50px;
    width: auto;
}

/* Navigation */
.main-navigation {
    display: none;
}

.nav-menu {
    display: flex;
    align-items: center;
    gap: var(--space-xl);
}

.nav-menu li a {
    font-size: var(--text-sm);
    font-weight: 500;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: var(--color-text-secondary);
    transition: color var(--transition-fast);
    position: relative;
}

.nav-menu li a::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 1px;
    background-color: var(--color-accent);
    transition: width var(--transition-base);
}

.nav-menu li a:hover,
.nav-menu li.current-menu-item a {
    color: var(--color-accent);
}

.nav-menu li a:hover::after,
.nav-menu li.current-menu-item a::after {
    width: 100%;
}

/* Mobile menu toggle */
.menu-toggle {
    display: flex;
    flex-direction: column;
    justify-content: center;
    gap: 6px;
    width: 30px;
    height: 30px;
    padding: 0;
    z-index: 1001;
}

.menu-toggle__bar {
    display: block;
    width: 100%;
    height: 2px;
    background-color: var(--color-text);
    transition: transform var(--transition-base), opacity var(--transition-fast);
}

.menu-toggle[aria-expanded="true"] .menu-toggle__bar:nth-child(1) {
    transform: translateY(8px) rotate(45deg);
}

.menu-toggle[aria-expanded="true"] .menu-toggle__bar:nth-child(2) {
    opacity: 0;
}

.menu-toggle[aria-expanded="true"] .menu-toggle__bar:nth-child(3) {
    transform: translateY(-8px) rotate(-45deg);
}

/* Mobile navigation open state */
body.nav-open {
    overflow: hidden;
}

body.nav-open .main-navigation {
    display: flex;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: var(--color-bg);
    align-items: center;
    justify-content: center;
    z-index: 999;
}

body.nav-open .nav-menu {
    flex-direction: column;
    gap: var(--space-xl);
}

body.nav-open .nav-menu li a {
    font-size: var(--text-2xl);
    font-family: var(--font-heading);
    text-transform: none;
    letter-spacing: 0;
}

/* Desktop navigation */
@media (min-width: 768px) {
    .menu-toggle {
        display: none;
    }

    .main-navigation {
        display: block;
    }
}

/* ==========================================================================
   Hero Section
   ========================================================================== */

.hero {
    position: relative;
    height: 100vh;
    min-height: 600px;
    display: flex;
    align-items: flex-end;
    justify-content: center;
    overflow: hidden;
    background-color: var(--color-bg-alt);
}

.hero__background {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: var(--header-height) var(--space-xl) var(--space-4xl);
}

.hero__image {
    max-width: 100%;
    max-height: 100%;
    width: auto;
    height: auto;
    object-fit: contain;
}

.hero__placeholder {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 100%;
    height: 100%;
    background-color: var(--color-border);
    color: var(--color-text-muted);
    font-size: var(--text-sm);
}

.hero__content {
    position: relative;
    z-index: 10;
    width: 100%;
    padding: var(--space-2xl) var(--space-lg);
    background: linear-gradient(to top, rgba(250, 250, 250, 0.95) 0%, rgba(250, 250, 250, 0) 100%);
}

.hero__info {
    text-align: center;
}

.hero__title {
    font-size: var(--text-3xl);
    font-weight: 400;
    margin-bottom: var(--space-xs);
}

.hero__subtitle {
    font-size: var(--text-sm);
    color: var(--color-text-secondary);
    letter-spacing: 0.05em;
}

.hero__scroll-indicator {
    position: absolute;
    bottom: var(--space-xl);
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--space-sm);
    color: var(--color-text-muted);
    font-size: var(--text-xs);
    letter-spacing: 0.1em;
    text-transform: uppercase;
    animation: bounce 2s infinite;
}

@keyframes bounce {
    0%, 20%, 50%, 80%, 100% {
        transform: translateX(-50%) translateY(0);
    }
    40% {
        transform: translateX(-50%) translateY(-10px);
    }
    60% {
        transform: translateX(-50%) translateY(-5px);
    }
}

/* ==========================================================================
   Sections
   ========================================================================== */

.section {
    padding: var(--space-4xl) 0;
}

.section__header {
    text-align: center;
    margin-bottom: var(--space-3xl);
}

.section__header--left {
    text-align: left;
}

.section__title {
    font-size: var(--text-3xl);
    margin-bottom: var(--space-sm);
}

.section__title--centered {
    text-align: center;
}

.section__subtitle {
    font-size: var(--text-base);
    color: var(--color-text-secondary);
}

.section__cta {
    text-align: center;
    margin-top: var(--space-3xl);
}

.section--works {
    background-color: var(--color-bg);
}

.section--about {
    background-color: var(--color-bg-alt);
}

.section--contact-cta {
    background-color: var(--color-bg);
    border-top: 1px solid var(--color-border);
}

/* ==========================================================================
   Works Grid
   ========================================================================== */

.works-grid {
    display: grid;
    grid-template-columns: repeat(1, 1fr);
    gap: var(--space-lg);
}

@media (min-width: 576px) {
    .works-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (min-width: 992px) {
    .works-grid {
        grid-template-columns: repeat(3, 1fr);
        gap: var(--space-xl);
    }
}

.work-card {
    position: relative;
}

.work-card__link {
    display: block;
}

.work-card__image-wrapper {
    position: relative;
    aspect-ratio: 1;
    overflow: hidden;
    background-color: var(--color-border);
}

.work-card__image {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform var(--transition-slow);
}

.work-card__overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: rgba(0, 0, 0, 0.4);
    opacity: 0;
    transition: opacity var(--transition-base);
}

.work-card__view {
    color: white;
    font-size: var(--text-sm);
    font-weight: 500;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    padding: var(--space-sm) var(--space-md);
    border: 1px solid white;
}

.work-card__link:hover .work-card__image {
    transform: scale(1.05);
}

.work-card__link:hover .work-card__overlay {
    opacity: 1;
}

.work-card__info {
    padding: var(--space-md) 0;
}

.work-card__title {
    font-size: var(--text-lg);
    font-weight: 400;
    margin-bottom: var(--space-xs);
}

.work-card__technique {
    font-size: var(--text-sm);
    color: var(--color-text-muted);
    margin: 0;
}

/* Placeholder cards */
.work-card--placeholder .work-card__placeholder-img {
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, var(--color-border) 0%, var(--color-bg) 100%);
}

/* ==========================================================================
   About Preview
   ========================================================================== */

.about-preview {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--space-3xl);
    align-items: center;
}

@media (min-width: 768px) {
    .about-preview {
        grid-template-columns: 1fr 1fr;
        gap: var(--space-4xl);
    }
}

.about-preview__image-wrapper {
    aspect-ratio: 4/5;
    overflow: hidden;
    background-color: var(--color-border);
}

.about-preview__image-wrapper--placeholder {
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-text-muted);
    font-size: var(--text-sm);
}

.about-preview__image {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.about-preview__text {
    font-size: var(--text-lg);
    line-height: 1.8;
    color: var(--color-text-secondary);
    margin-bottom: var(--space-xl);
}

/* ==========================================================================
   Contact CTA
   ========================================================================== */

.contact-cta {
    text-align: center;
    padding: var(--space-3xl) 0;
}

.contact-cta__title {
    font-size: var(--text-3xl);
    margin-bottom: var(--space-md);
}

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

/* ==========================================================================
   Buttons
   ========================================================================== */

.btn {
    display: inline-flex;
    align-items: center;
    gap: var(--space-sm);
    font-size: var(--text-sm);
    font-weight: 500;
    letter-spacing: 0.05em;
    text-transform: uppercase;
    padding: var(--space-md) var(--space-xl);
    transition: all var(--transition-base);
}

.btn--primary {
    background-color: var(--color-accent);
    color: var(--color-bg);
    border: 2px solid var(--color-accent);
}

.btn--primary:hover {
    background-color: transparent;
    color: var(--color-accent);
}

.btn--outline {
    background-color: transparent;
    color: var(--color-accent);
    border: 2px solid var(--color-accent);
}

.btn--outline:hover {
    background-color: var(--color-accent);
    color: var(--color-bg);
}

.btn--text {
    padding: 0;
    border: none;
    color: var(--color-accent);
}

.btn--text:hover {
    opacity: 0.7;
}

.btn svg {
    transition: transform var(--transition-fast);
}

.btn:hover svg {
    transform: translateX(4px);
}

/* ==========================================================================
   Page Templates
   ========================================================================== */

/* Page Hero */
.page-hero {
    padding: calc(var(--header-height) + var(--space-4xl)) 0 var(--space-3xl);
    text-align: center;
    background-color: var(--color-bg-alt);
    border-bottom: 1px solid var(--color-border);
}

.page-hero__title {
    font-size: var(--text-5xl);
    font-weight: 300;
}

/* Bio Layout */
.bio-layout {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--space-3xl);
    align-items: start;
}

@media (min-width: 768px) {
    .bio-layout {
        grid-template-columns: 1fr 1.2fr;
        gap: var(--space-4xl);
    }
}

.portrait-frame {
    position: sticky;
    top: calc(var(--header-height) + var(--space-xl));
    aspect-ratio: 3/4;
    overflow: hidden;
    background-color: var(--color-border);
}

.portrait-frame--placeholder {
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-text-muted);
    font-size: var(--text-sm);
}

.portrait-frame__image {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.bio-text {
    font-size: var(--text-lg);
    line-height: 1.9;
    color: var(--color-text-secondary);
}

.bio-text p {
    margin-bottom: var(--space-lg);
}

/* Timeline */
.section--timeline {
    background-color: var(--color-bg-alt);
}

.timeline {
    position: relative;
    padding-left: var(--space-xl);
}

.timeline::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 1px;
    height: 100%;
    background-color: var(--color-border);
}

.timeline__item {
    position: relative;
    padding-bottom: var(--space-2xl);
}

.timeline__item:last-child {
    padding-bottom: 0;
}

.timeline__marker {
    position: absolute;
    left: calc(-1 * var(--space-xl) - 5px);
    top: 6px;
    width: 11px;
    height: 11px;
    border-radius: 50%;
    background-color: var(--color-bg);
    border: 2px solid var(--color-accent);
}

.timeline__date {
    display: block;
    font-size: var(--text-sm);
    color: var(--color-text-muted);
    margin-bottom: var(--space-xs);
}

.timeline__title {
    font-size: var(--text-xl);
    margin-bottom: var(--space-sm);
}

.timeline__description {
    color: var(--color-text-secondary);
}

/* Skills Grid */
.skills-grid {
    display: grid;
    grid-template-columns: repeat(1, 1fr);
    gap: var(--space-xl);
}

@media (min-width: 576px) {
    .skills-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (min-width: 992px) {
    .skills-grid {
        grid-template-columns: repeat(4, 1fr);
    }
}

.skill-card {
    text-align: center;
    padding: var(--space-xl);
    background-color: var(--color-bg-alt);
    border: 1px solid var(--color-border);
    transition: border-color var(--transition-base), transform var(--transition-base);
}

.skill-card:hover {
    border-color: var(--color-border-dark);
    transform: translateY(-4px);
}

.skill-card__icon {
    display: flex;
    justify-content: center;
    margin-bottom: var(--space-lg);
    color: var(--color-text);
}

.skill-card__title {
    font-size: var(--text-xl);
    margin-bottom: var(--space-sm);
}

.skill-card__description {
    font-size: var(--text-sm);
    color: var(--color-text-secondary);
}

/* ==========================================================================
   Exhibition Feature
   ========================================================================== */

.section--exhibition {
    background-color: var(--color-bg-alt);
    border-top: 1px solid var(--color-border);
}

.exhibition-feature {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--space-2xl);
    align-items: center;
}

@media (min-width: 768px) {
    .exhibition-feature {
        grid-template-columns: 1.2fr 1fr;
        gap: var(--space-4xl);
    }
}

.exhibition-feature__image-wrapper {
    aspect-ratio: 16/10;
    overflow: hidden;
    background-color: var(--color-border);
}

.exhibition-feature__image {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform var(--transition-slow);
}

.exhibition-feature:hover .exhibition-feature__image {
    transform: scale(1.03);
}

.exhibition-feature__content {
    padding: var(--space-xl) 0;
}

.exhibition-feature__label {
    display: inline-block;
    font-size: var(--text-xs);
    font-weight: 600;
    letter-spacing: 0.15em;
    text-transform: uppercase;
    color: var(--color-text-muted);
    margin-bottom: var(--space-md);
}

.exhibition-feature__title {
    font-size: var(--text-3xl);
    margin-bottom: var(--space-md);
}

.exhibition-feature__description {
    font-size: var(--text-base);
    color: var(--color-text-secondary);
    line-height: 1.7;
    margin-bottom: var(--space-xl);
}

/* ==========================================================================
   Footer
   ========================================================================== */

.site-footer {
    background-color: var(--color-bg-alt);
    border-top: 1px solid var(--color-border);
    padding: var(--space-3xl) 0 var(--space-xl);
}

.footer__inner {
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 var(--space-lg);
}

.footer__content {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--space-xl);
    text-align: center;
    padding-bottom: var(--space-xl);
    border-bottom: 1px solid var(--color-border);
    margin-bottom: var(--space-xl);
}

@media (min-width: 768px) {
    .footer__content {
        flex-direction: row;
        justify-content: space-between;
        text-align: left;
    }
}

.footer__site-name {
    font-family: var(--font-heading);
    font-size: var(--text-xl);
    font-weight: 500;
    display: block;
    margin-bottom: var(--space-xs);
}

.footer__tagline {
    font-size: var(--text-sm);
    color: var(--color-text-muted);
    margin: 0;
}

.social-links {
    display: flex;
    gap: var(--space-md);
}

.social-links a {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 44px;
    height: 44px;
    border: 1px solid var(--color-border);
    border-radius: 50%;
    color: var(--color-text-secondary);
    transition: all var(--transition-base);
}

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

.social-icon svg {
    width: 20px;
    height: 20px;
}

.footer__bottom {
    text-align: center;
}

.footer__copyright {
    font-size: var(--text-sm);
    color: var(--color-text-muted);
    margin: 0;
}

/* ==========================================================================
   Page Content (default)
   ========================================================================== */

.page-content {
    padding-top: calc(var(--header-height) + var(--space-3xl));
    padding-bottom: var(--space-4xl);
}

.page-header {
    text-align: center;
    margin-bottom: var(--space-3xl);
}

.page-title {
    font-size: var(--text-4xl);
    font-weight: 300;
}

.page-body {
    font-size: var(--text-lg);
    line-height: 1.8;
}

.page-body p {
    margin-bottom: var(--space-lg);
}

.page-body h2 {
    margin-top: var(--space-2xl);
    margin-bottom: var(--space-md);
}

.page-body h3 {
    margin-top: var(--space-xl);
    margin-bottom: var(--space-md);
}

/* ==========================================================================
   Posts Grid (index/archive)
   ========================================================================== */

.posts-grid {
    display: grid;
    grid-template-columns: repeat(1, 1fr);
    gap: var(--space-xl);
    padding: calc(var(--header-height) + var(--space-2xl)) 0 var(--space-3xl);
}

@media (min-width: 576px) {
    .posts-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (min-width: 992px) {
    .posts-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

.post-card__image {
    display: block;
    aspect-ratio: 4/3;
    overflow: hidden;
    margin-bottom: var(--space-md);
}

.post-card__image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform var(--transition-slow);
}

.post-card__image:hover img {
    transform: scale(1.05);
}

.post-card__title {
    font-size: var(--text-xl);
    margin-bottom: var(--space-sm);
}

.post-card__title a:hover {
    color: var(--color-text-secondary);
}

.post-card__excerpt {
    font-size: var(--text-sm);
    color: var(--color-text-secondary);
}

.no-posts {
    text-align: center;
    padding: var(--space-4xl) 0;
    color: var(--color-text-muted);
}

/* ==========================================================================
   Utilities
   ========================================================================== */

.text-center { text-align: center; }
.text-left { text-align: left; }
.text-right { text-align: right; }

.mt-0 { margin-top: 0; }
.mb-0 { margin-bottom: 0; }

/* ==========================================================================
   Responsive Adjustments
   ========================================================================== */

@media (min-width: 768px) {
    :root {
        --text-5xl: 4rem;
        --text-6xl: 5rem;
    }

    .hero__title {
        font-size: var(--text-4xl);
    }
}

@media (min-width: 992px) {
    :root {
        --text-5xl: 4.5rem;
        --text-6xl: 6rem;
    }
}

@media (min-width: 1200px) {
    .container {
        padding: 0 var(--space-xl);
    }
}