/*
Theme Name: Nöropsikoloji Dergi
Theme URI: https://noropsikoloji.org
Author: Nöropsikoloji Derneği
Author URI: https://noropsikoloji.org
Description: Akademik dergi yayın teması - Zarif, profesyonel, aydınlık/karanlık mod destekli.
Version: 2.0.5
Requires at least: 6.0
Requires PHP: 7.4
Text Domain: noropsikoloji-dergi
License: GPL v2 or later
*/

/* ========================================
   DESIGN TOKENS
   ======================================== */
:root {
    /* Typography */
    --font-display: 'Cormorant Garamond', 'Georgia', serif;
    --font-body: 'Source Sans 3', 'Helvetica Neue', sans-serif;
    --font-mono: 'JetBrains Mono', 'Fira Code', monospace;
    --font-ui: 'Source Sans 3', system-ui, sans-serif;

    /* Light Theme */
    --bg-primary: #FAF8F5;
    --bg-secondary: #F2EDE6;
    --bg-tertiary: #E8E1D8;
    --bg-card: #FFFFFF;
    --bg-elevated: #FFFFFF;
    --bg-code: #F5F0EB;

    --text-primary: #1A1614;
    --text-secondary: #4A443E;
    --text-tertiary: #7A7268;
    --text-muted: #A09888;
    --text-inverse: #FAF8F5;

    --accent: #8B2635;
    --accent-hover: #6E1E2A;
    --accent-light: rgba(139, 38, 53, 0.08);
    --accent-border: rgba(139, 38, 53, 0.2);

    --border: rgba(26, 22, 20, 0.1);
    --border-strong: rgba(26, 22, 20, 0.18);
    --border-accent: var(--accent-border);

    --shadow-sm: 0 1px 3px rgba(26, 22, 20, 0.04), 0 1px 2px rgba(26, 22, 20, 0.03);
    --shadow-md: 0 4px 16px rgba(26, 22, 20, 0.06), 0 2px 4px rgba(26, 22, 20, 0.04);
    --shadow-lg: 0 12px 40px rgba(26, 22, 20, 0.08), 0 4px 12px rgba(26, 22, 20, 0.04);

    --grain-opacity: 0.03;
    --line-opacity: 0.06;

    /* Sizing */
    --header-height: 72px;
    --max-width: 1180px;
    --content-width: 740px;
    --sidebar-width: 300px;
    --gap: 24px;
    --radius: 6px;
    --radius-lg: 10px;

    /* Transitions */
    --transition-fast: 0.15s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-base: 0.25s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slow: 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-theme: 0.5s cubic-bezier(0.4, 0, 0.2, 1);
}

/* ========================================
   DARK THEME
   ======================================== */
[data-theme="dark"] {
    --bg-primary: #141210;
    --bg-secondary: #1C1917;
    --bg-tertiary: #262220;
    --bg-card: #1C1917;
    --bg-elevated: #222019;
    --bg-code: #1C1917;

    --text-primary: #EDE8E2;
    --text-secondary: #BDB5AA;
    --text-tertiary: #8E857A;
    --text-muted: #6B6258;
    --text-inverse: #141210;

    --accent: #D4606E;
    --accent-hover: #E07882;
    --accent-light: rgba(212, 96, 110, 0.1);
    --accent-border: rgba(212, 96, 110, 0.25);

    --border: rgba(237, 232, 226, 0.08);
    --border-strong: rgba(237, 232, 226, 0.14);

    --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.2);
    --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.25);
    --shadow-lg: 0 12px 40px rgba(0, 0, 0, 0.35);

    --grain-opacity: 0.04;
    --line-opacity: 0.04;
}

/* ========================================
   RESET & BASE
   ======================================== */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html {
    scroll-behavior: smooth;
    -webkit-text-size-adjust: 100%;
    font-size: 16px;
}

body {
    font-family: var(--font-body);
    font-size: 1rem;
    line-height: 1.7;
    color: var(--text-primary);
    background-color: var(--bg-primary);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    transition: background-color var(--transition-theme), color var(--transition-theme);
    overflow-x: hidden;
}

/* Paper grain texture overlay */
body::before {
    content: '';
    position: fixed;
    inset: 0;
    pointer-events: none;
    z-index: 9999;
    opacity: var(--grain-opacity);
    background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noise'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noise)'/%3E%3C/svg%3E");
    background-repeat: repeat;
    background-size: 256px 256px;
    transition: opacity var(--transition-theme);
}

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

img { max-width: 100%; height: auto; display: block; }
ul, ol { list-style: none; }
button { cursor: pointer; font-family: inherit; border: none; background: none; }

::selection {
    background: var(--accent);
    color: var(--text-inverse);
}

/* ========================================
   TYPOGRAPHY
   ======================================== */
h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-display);
    font-weight: 600;
    line-height: 1.2;
    color: var(--text-primary);
    letter-spacing: -0.01em;
}

h1 { font-size: clamp(2rem, 4vw, 2.75rem); }
h2 { font-size: clamp(1.5rem, 3vw, 2rem); }
h3 { font-size: clamp(1.25rem, 2.5vw, 1.5rem); }
h4 { font-size: 1.125rem; }

p + p { margin-top: 1em; }

.label {
    font-family: var(--font-ui);
    font-size: 0.6875rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--text-muted);
}

/* ========================================
   LAYOUT
   ======================================== */
.site-container {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

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

.site-content {
    flex: 1;
    padding-top: calc(var(--header-height) + 1px);
}

/* ========================================
   HEADER
   ======================================== */
.site-header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    height: var(--header-height);
    z-index: 1000;
    background: var(--bg-primary);
    border-bottom: 1px solid var(--border);
    transition: background-color var(--transition-theme),
                border-color var(--transition-theme),
                box-shadow var(--transition-base);
}

.site-header.scrolled {
    box-shadow: var(--shadow-md);
}

.header-inner {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 var(--gap);
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 32px;
}

/* Logo / Branding */
.site-brand {
    display: flex;
    align-items: center;
    gap: 14px;
    text-decoration: none;
    flex-shrink: 0;
}

.site-brand .brand-icon {
    width: 36px;
    height: 36px;
    background: var(--accent);
    border-radius: 4px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-family: var(--font-display);
    font-size: 20px;
    font-weight: 700;
    color: #fff;
    transition: background var(--transition-fast);
}

.site-brand:hover .brand-icon { background: var(--accent-hover); }

.brand-text {
    display: flex;
    flex-direction: column;
    line-height: 1.15;
}

.brand-title {
    font-family: var(--font-display);
    font-size: 1.125rem;
    font-weight: 700;
    color: var(--text-primary);
    letter-spacing: -0.02em;
}

.brand-subtitle {
    font-family: var(--font-display);
    font-size: 0.75rem;
    font-style: italic;
    font-weight: 400;
    color: var(--text-tertiary);
    letter-spacing: 0.01em;
}

.brand-logo {
    height: 36px;
    width: auto;
    object-fit: contain;
    border-radius: 4px;
    transition: opacity var(--transition-fast);
}

.site-brand:hover .brand-logo { opacity: 0.85; }

/* Navigation */
.main-nav { display: flex; align-items: center; }

.main-nav ul {
    display: flex;
    align-items: center;
    gap: 4px;
}

.main-nav a {
    display: block;
    padding: 8px 14px;
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--text-secondary);
    border-radius: var(--radius);
    transition: all var(--transition-fast);
    white-space: nowrap;
}

.main-nav a:hover,
.main-nav .current-menu-item a {
    color: var(--text-primary);
    background: var(--accent-light);
}

/* Header Right */
.header-actions {
    display: flex;
    align-items: center;
    gap: 8px;
    flex-shrink: 0;
}

/* Theme Toggle */
.theme-toggle {
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    color: var(--text-secondary);
    transition: all var(--transition-fast);
    position: relative;
}

.theme-toggle:hover {
    background: var(--accent-light);
    color: var(--text-primary);
}

.theme-toggle svg {
    width: 18px;
    height: 18px;
    transition: transform var(--transition-base), opacity var(--transition-base);
}

.theme-toggle .icon-sun { position: absolute; }
.theme-toggle .icon-moon { position: absolute; }

[data-theme="light"] .theme-toggle .icon-sun { opacity: 0; transform: rotate(90deg) scale(0); }
[data-theme="light"] .theme-toggle .icon-moon { opacity: 1; transform: rotate(0) scale(1); }
[data-theme="dark"] .theme-toggle .icon-sun { opacity: 1; transform: rotate(0) scale(1); }
[data-theme="dark"] .theme-toggle .icon-moon { opacity: 0; transform: rotate(-90deg) scale(0); }

/* Mobile Toggle */
.mobile-toggle {
    display: none;
    width: 40px;
    height: 40px;
    align-items: center;
    justify-content: center;
    color: var(--text-primary);
    border-radius: var(--radius);
}

.mobile-toggle span {
    display: block;
    width: 18px;
    height: 2px;
    background: currentColor;
    position: relative;
    transition: background var(--transition-fast);
}

.mobile-toggle span::before,
.mobile-toggle span::after {
    content: '';
    position: absolute;
    left: 0;
    width: 100%;
    height: 2px;
    background: currentColor;
    transition: transform var(--transition-fast);
}

.mobile-toggle span::before { transform: translateY(-6px); }
.mobile-toggle span::after { transform: translateY(6px); }

.mobile-toggle.active span { background: transparent; }
.mobile-toggle.active span::before { transform: rotate(45deg); }
.mobile-toggle.active span::after { transform: rotate(-45deg); }

/* ISSN Bar */
.issn-bar {
    display: flex;
    align-items: center;
    gap: 16px;
    padding-left: 16px;
    border-left: 1px solid var(--border);
    margin-left: 8px;
}

.issn-bar span {
    font-family: var(--font-mono);
    font-size: 0.6875rem;
    color: var(--text-muted);
    letter-spacing: 0.02em;
}

/* ========================================
   HERO / FRONTPAGE
   ======================================== */
.hero {
    padding: 80px 0 64px;
    position: relative;
    border-bottom: 1px solid var(--border);
}

.hero::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 60px;
    height: 1px;
    background: var(--accent);
}

.hero-content {
    max-width: 640px;
}

.hero .label {
    margin-bottom: 16px;
    display: flex;
    align-items: center;
    gap: 8px;
}

.hero .label::before {
    content: '';
    width: 20px;
    height: 1px;
    background: var(--accent);
}

.hero h1 {
    margin-bottom: 20px;
    font-weight: 700;
    font-size: clamp(2.25rem, 5vw, 3.25rem);
    line-height: 1.1;
    letter-spacing: -0.025em;
}

.hero-description {
    font-size: 1.125rem;
    line-height: 1.65;
    color: var(--text-secondary);
    max-width: 540px;
}

/* ========================================
   SECTIONS
   ======================================== */
.section {
    padding: 56px 0;
}

.section + .section {
    border-top: 1px solid var(--border);
}

.section-header {
    display: flex;
    align-items: baseline;
    justify-content: space-between;
    margin-bottom: 32px;
    gap: 16px;
}

.section-header h2 {
    font-size: 1.375rem;
    font-weight: 600;
}

.section-header h2::after {
    content: '';
    display: block;
    width: 28px;
    height: 2px;
    background: var(--accent);
    margin-top: 8px;
}

.view-all {
    font-size: 0.8125rem;
    font-weight: 600;
    color: var(--accent);
    display: flex;
    align-items: center;
    gap: 4px;
    white-space: nowrap;
}

.view-all::after {
    content: '→';
    transition: transform var(--transition-fast);
}

.view-all:hover::after { transform: translateX(3px); }

/* ========================================
   ARTICLE CARDS
   ======================================== */
.articles-grid {
    display: grid;
    gap: 1px;
    background: var(--border);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    overflow: hidden;
}

.article-card {
    background: var(--bg-card);
    padding: 28px;
    transition: background var(--transition-fast);
    position: relative;
}

.article-card:hover {
    background: var(--bg-elevated);
}

.article-card .card-type {
    display: inline-block;
    font-family: var(--font-ui);
    font-size: 0.625rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--accent);
    background: var(--accent-light);
    padding: 3px 8px;
    border-radius: 3px;
    margin-bottom: 10px;
}

.article-card h3 {
    font-size: 1.125rem;
    font-weight: 600;
    line-height: 1.35;
    margin-bottom: 8px;
}

.article-card h3 a {
    color: var(--text-primary);
    transition: color var(--transition-fast);
}

.article-card h3 a:hover {
    color: var(--accent);
}

.card-authors {
    font-size: 0.875rem;
    color: var(--text-secondary);
    margin-bottom: 10px;
    font-style: italic;
}

.card-abstract {
    font-size: 0.875rem;
    line-height: 1.6;
    color: var(--text-tertiary);
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
    margin-bottom: 14px;
}

.card-meta {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 12px;
    font-size: 0.75rem;
    color: var(--text-muted);
}

.card-meta .doi {
    font-family: var(--font-mono);
    font-size: 0.6875rem;
    color: var(--accent);
    background: var(--accent-light);
    padding: 2px 6px;
    border-radius: 3px;
}

.card-keywords {
    display: flex;
    flex-wrap: wrap;
    gap: 4px;
    margin-top: 10px;
}

.card-keywords span {
    font-size: 0.6875rem;
    color: var(--text-muted);
    background: var(--bg-secondary);
    padding: 2px 8px;
    border-radius: 3px;
    transition: background var(--transition-fast);
}

/* ========================================
   ISSUE CARDS
   ======================================== */
.issues-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
    gap: 20px;
}

.issue-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    overflow: hidden;
    transition: all var(--transition-base);
}

.issue-card:hover {
    border-color: var(--border-strong);
    box-shadow: var(--shadow-md);
    transform: translateY(-2px);
}

.issue-cover {
    aspect-ratio: 3/4;
    background: linear-gradient(145deg, var(--bg-tertiary), var(--bg-secondary));
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    overflow: hidden;
}

.issue-cover img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.issue-cover .cover-placeholder {
    text-align: center;
    padding: 24px;
}

.issue-cover .cover-placeholder .vol-label {
    font-family: var(--font-display);
    font-size: 0.8125rem;
    text-transform: uppercase;
    letter-spacing: 0.15em;
    color: var(--text-muted);
    margin-bottom: 4px;
}

.issue-cover .cover-placeholder .vol-number {
    font-family: var(--font-display);
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--text-primary);
    line-height: 1;
}

.issue-info {
    padding: 16px;
}

.issue-info h3 {
    font-size: 0.9375rem;
    font-weight: 600;
    margin-bottom: 4px;
}

.issue-info h3 a {
    color: var(--text-primary);
}

.issue-info h3 a:hover {
    color: var(--accent);
}

.issue-meta {
    font-size: 0.75rem;
    color: var(--text-muted);
}

/* ========================================
   TOPIC PILLS
   ======================================== */
.topics-list {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.topic-pill {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 8px 16px;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 100px;
    font-size: 0.8125rem;
    font-weight: 500;
    color: var(--text-secondary);
    transition: all var(--transition-fast);
    text-decoration: none;
}

.topic-pill:hover {
    border-color: var(--accent-border);
    color: var(--accent);
    background: var(--accent-light);
}

.topic-pill .count {
    font-size: 0.6875rem;
    background: var(--bg-secondary);
    padding: 1px 6px;
    border-radius: 100px;
    color: var(--text-muted);
    font-weight: 600;
}

/* ========================================
   SINGLE ARTICLE
   ======================================== */
.article-header {
    padding: 64px 0 48px;
    border-bottom: 1px solid var(--border);
    max-width: var(--content-width);
    margin: 0 auto;
}

.article-header .label { margin-bottom: 16px; }

.article-header h1 {
    font-size: clamp(1.75rem, 4vw, 2.5rem);
    font-weight: 700;
    line-height: 1.15;
    margin-bottom: 12px;
    letter-spacing: -0.02em;
}

.article-header .title-en {
    font-family: var(--font-display);
    font-size: 1.125rem;
    font-style: italic;
    color: var(--text-tertiary);
    margin-bottom: 24px;
}

.article-authors {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
    margin-bottom: 20px;
    font-size: 0.9375rem;
}

.article-authors .author-name {
    color: var(--text-secondary);
    font-weight: 500;
}

.article-meta-bar {
    display: flex;
    flex-wrap: wrap;
    gap: 20px;
    padding: 16px 0;
    border-top: 1px solid var(--border);
    font-size: 0.8125rem;
    color: var(--text-muted);
}

.article-meta-bar .meta-item {
    display: flex;
    align-items: center;
    gap: 6px;
}

.article-meta-bar .meta-label {
    font-weight: 600;
    color: var(--text-tertiary);
}

.article-body {
    max-width: var(--content-width);
    margin: 0 auto;
    padding: 48px 0;
}

.article-body .abstract-block {
    padding: 28px;
    background: var(--bg-secondary);
    border-radius: var(--radius-lg);
    margin-bottom: 32px;
    border-left: 3px solid var(--accent);
}

.abstract-block h4 {
    font-family: var(--font-ui);
    font-size: 0.6875rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--text-muted);
    margin-bottom: 10px;
}

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

.keywords-block {
    margin-bottom: 32px;
}

.keywords-block h4 {
    font-family: var(--font-ui);
    font-size: 0.6875rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--text-muted);
    margin-bottom: 8px;
}

.keywords-list {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
}

.keywords-list span {
    font-size: 0.8125rem;
    background: var(--bg-secondary);
    color: var(--text-secondary);
    padding: 4px 12px;
    border-radius: 100px;
    border: 1px solid var(--border);
}

/* Timeline */
.article-timeline {
    border-top: 1px solid var(--border);
    padding-top: 28px;
    margin-top: 28px;
}

.article-timeline h4 {
    font-family: var(--font-ui);
    font-size: 0.6875rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--text-muted);
    margin-bottom: 16px;
}

.timeline-items {
    display: flex;
    flex-wrap: wrap;
    gap: 24px;
}

.timeline-item {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 0.8125rem;
    color: var(--text-tertiary);
}

.timeline-item::before {
    content: '';
    width: 6px;
    height: 6px;
    background: var(--accent);
    border-radius: 50%;
    flex-shrink: 0;
}

.timeline-item strong {
    color: var(--text-secondary);
    font-weight: 600;
}

/* Citation */
.citation-box {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    overflow: hidden;
    margin-top: 40px;
}

.citation-tabs {
    display: flex;
    border-bottom: 1px solid var(--border);
}

.citation-tabs button {
    flex: 1;
    padding: 12px 16px;
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    color: var(--text-muted);
    background: var(--bg-secondary);
    transition: all var(--transition-fast);
}

.citation-tabs button.active {
    background: var(--bg-card);
    color: var(--accent);
    box-shadow: inset 0 -2px 0 var(--accent);
}

.citation-content {
    padding: 20px;
    font-family: var(--font-mono);
    font-size: 0.8125rem;
    line-height: 1.6;
    color: var(--text-secondary);
}

.citation-content .format { display: none; }
.citation-content .format.active { display: block; }

.copy-citation {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    margin-top: 12px;
    padding: 6px 14px;
    font-family: var(--font-ui);
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--accent);
    background: var(--accent-light);
    border-radius: var(--radius);
    transition: all var(--transition-fast);
}

.copy-citation:hover {
    background: var(--accent);
    color: #fff;
}

.copy-citation.copied {
    background: #16a34a;
    color: #fff;
}

/* PDF Button */
.pdf-download {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 10px 20px;
    background: var(--accent);
    color: #fff;
    font-size: 0.875rem;
    font-weight: 600;
    border-radius: var(--radius);
    transition: all var(--transition-fast);
    text-decoration: none;
}

.pdf-download:hover {
    background: var(--accent-hover);
    color: #fff;
    transform: translateY(-1px);
    box-shadow: var(--shadow-sm);
}

/* ========================================
   SINGLE ISSUE
   ======================================== */
.issue-header {
    padding: 56px 0 40px;
    border-bottom: 1px solid var(--border);
}

.issue-header-inner {
    display: flex;
    gap: 40px;
    align-items: flex-start;
}

.issue-header-cover {
    width: 200px;
    flex-shrink: 0;
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-md);
}

.issue-header-info h1 {
    font-size: 1.75rem;
    margin-bottom: 8px;
}

.issue-description {
    font-size: 0.9375rem;
    color: var(--text-secondary);
    margin-top: 12px;
}

.issue-toc {
    max-width: var(--content-width);
    margin: 0 auto;
    padding: 48px 0;
}

.toc-group {
    margin-bottom: 36px;
}

.toc-group-title {
    font-family: var(--font-ui);
    font-size: 0.6875rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--text-muted);
    padding-bottom: 8px;
    border-bottom: 1px solid var(--border);
    margin-bottom: 16px;
}

.toc-item {
    padding: 14px 0;
    border-bottom: 1px solid var(--border);
    transition: background var(--transition-fast);
}

.toc-item:last-child { border-bottom: none; }

.toc-item h3 {
    font-size: 1rem;
    font-weight: 600;
    margin-bottom: 4px;
}

.toc-item h3 a {
    color: var(--text-primary);
}
.toc-item h3 a:hover { color: var(--accent); }

.toc-item .toc-authors {
    font-size: 0.8125rem;
    color: var(--text-tertiary);
    font-style: italic;
}

.toc-item .toc-pages {
    font-family: var(--font-mono);
    font-size: 0.75rem;
    color: var(--text-muted);
    float: right;
    margin-top: -18px;
}

/* ========================================
   ARCHIVES
   ======================================== */
.archive-header {
    padding: 56px 0 32px;
    border-bottom: 1px solid var(--border);
}

.archive-header h1 {
    font-size: 1.75rem;
    margin-bottom: 8px;
}

.archive-header p {
    color: var(--text-secondary);
}

/* Filters */
.archive-filters {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    padding: 20px 0;
    border-bottom: 1px solid var(--border);
}

.archive-filters select,
.archive-filters input[type="text"] {
    padding: 8px 14px;
    font-family: var(--font-ui);
    font-size: 0.8125rem;
    color: var(--text-primary);
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    transition: border-color var(--transition-fast);
    appearance: none;
}

.archive-filters select { padding-right: 32px; }

.archive-filters select:focus,
.archive-filters input[type="text"]:focus {
    outline: none;
    border-color: var(--accent);
    box-shadow: 0 0 0 3px var(--accent-light);
}

.archive-filters button {
    padding: 8px 20px;
    background: var(--accent);
    color: #fff;
    font-size: 0.8125rem;
    font-weight: 600;
    border-radius: var(--radius);
    transition: background var(--transition-fast);
}

.archive-filters button:hover {
    background: var(--accent-hover);
}

.archive-body {
    padding: 40px 0;
}

/* ========================================
   SEARCH
   ======================================== */
.search-header {
    padding: 56px 0 32px;
    border-bottom: 1px solid var(--border);
}

.search-form-large {
    display: flex;
    max-width: 560px;
    margin-top: 16px;
    border: 1px solid var(--border);
    border-radius: var(--radius);
    overflow: hidden;
    transition: border-color var(--transition-fast);
}

.search-form-large:focus-within {
    border-color: var(--accent);
    box-shadow: 0 0 0 3px var(--accent-light);
}

.search-form-large input {
    flex: 1;
    padding: 12px 16px;
    border: none;
    font-size: 0.9375rem;
    background: var(--bg-card);
    color: var(--text-primary);
}

.search-form-large input::placeholder { color: var(--text-muted); }
.search-form-large input:focus { outline: none; }

.search-form-large button {
    padding: 12px 20px;
    background: var(--accent);
    color: #fff;
    font-weight: 600;
    transition: background var(--transition-fast);
}

.search-form-large button:hover { background: var(--accent-hover); }

/* ========================================
   PAGINATION
   ======================================== */
.pagination {
    display: flex;
    justify-content: center;
    gap: 4px;
    padding: 40px 0;
}

.pagination a,
.pagination span {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 36px;
    height: 36px;
    padding: 0 10px;
    font-size: 0.8125rem;
    font-weight: 500;
    color: var(--text-secondary);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    transition: all var(--transition-fast);
}

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

.pagination .current {
    background: var(--accent);
    color: #fff;
    border-color: var(--accent);
}

/* ========================================
   FOOTER
   ======================================== */
.site-footer {
    border-top: 1px solid var(--border);
    margin-top: auto;
}

.footer-main {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr;
    gap: 48px;
    padding: 48px 0;
}

.footer-brand h3 {
    font-size: 1rem;
    margin-bottom: 10px;
}

.footer-brand p {
    font-size: 0.8125rem;
    color: var(--text-tertiary);
    line-height: 1.65;
    max-width: 360px;
}

.footer-brand .issn-info {
    margin-top: 14px;
    font-family: var(--font-mono);
    font-size: 0.75rem;
    color: var(--text-muted);
}

.footer-brand .issn-info span {
    display: block;
    margin-bottom: 2px;
}

.footer-col h4 {
    font-family: var(--font-ui);
    font-size: 0.6875rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--text-muted);
    margin-bottom: 14px;
}

.footer-col ul li { margin-bottom: 6px; }

.footer-col ul a {
    font-size: 0.8125rem;
    color: var(--text-tertiary);
    transition: color var(--transition-fast);
}

.footer-col ul a:hover { color: var(--accent); }

.footer-bottom {
    border-top: 1px solid var(--border);
    padding: 20px 0;
    display: flex;
    align-items: center;
    justify-content: space-between;
    font-size: 0.75rem;
    color: var(--text-muted);
}

/* ========================================
   BREADCRUMB
   ======================================== */
.breadcrumb {
    display: flex;
    align-items: center;
    gap: 6px;
    font-size: 0.75rem;
    color: var(--text-muted);
    padding: 12px 0;
}

.breadcrumb a {
    color: var(--text-muted);
    transition: color var(--transition-fast);
}

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

.breadcrumb .sep { opacity: 0.4; }

/* ========================================
   BADGES
   ======================================== */
.badge {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    font-family: var(--font-ui);
    font-size: 0.6875rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.04em;
    padding: 3px 8px;
    border-radius: 3px;
    background: var(--accent-light);
    color: var(--accent);
}

/* ========================================
   404
   ======================================== */
.not-found {
    text-align: center;
    padding: 120px 0;
}

.not-found h1 {
    font-size: 4rem;
    color: var(--text-muted);
    opacity: 0.3;
    margin-bottom: 16px;
}

.not-found p {
    color: var(--text-tertiary);
    margin-bottom: 24px;
}

/* ========================================
   RESPONSIVE
   ======================================== */
@media (max-width: 1024px) {
    .footer-main { grid-template-columns: 1fr 1fr; gap: 32px; }
    .issue-header-inner { flex-direction: column; gap: 24px; }
    .issue-header-cover { width: 160px; }
    .issn-bar { display: none; }
}

@media (max-width: 768px) {
    :root {
        --header-height: 60px;
        --gap: 16px;
    }

    .mobile-toggle { display: flex; }

    .main-nav {
        position: fixed;
        top: var(--header-height);
        left: 0;
        right: 0;
        bottom: 0;
        background: var(--bg-primary);
        padding: 24px;
        transform: translateX(100%);
        transition: transform var(--transition-base);
        z-index: 999;
        border-top: 1px solid var(--border);
    }

    .main-nav.open { transform: translateX(0); }

    .main-nav ul {
        flex-direction: column;
        gap: 4px;
    }

    .main-nav a {
        font-size: 1rem;
        padding: 12px 16px;
    }

    .hero { padding: 48px 0 40px; }
    .hero h1 { font-size: 1.75rem; }
    .section { padding: 40px 0; }

    .footer-main {
        grid-template-columns: 1fr;
        gap: 28px;
        padding: 32px 0;
    }

    .footer-bottom { flex-direction: column; gap: 8px; text-align: center; }

    .article-header { padding: 40px 0 32px; }
    .article-body { padding: 32px 0; }

    .archive-filters { flex-direction: column; }
    .archive-filters select,
    .archive-filters input[type="text"] { width: 100%; }

    .issues-grid { grid-template-columns: repeat(2, 1fr); gap: 12px; }

    .scores-grid { grid-template-columns: repeat(2, 1fr) !important; }

    .toc-item .toc-pages { float: none; margin-top: 4px; display: block; }
}

@media (max-width: 480px) {
    .issues-grid { grid-template-columns: 1fr; }
    .section-header { flex-direction: column; gap: 4px; }
}

/* ========================================
   ANIMATIONS
   ======================================== */
@keyframes fadeInUp {
    from { opacity: 0; transform: translateY(16px); }
    to { opacity: 1; transform: translateY(0); }
}

.animate-in {
    animation: fadeInUp 0.5s cubic-bezier(0.4, 0, 0.2, 1) both;
}

.delay-1 { animation-delay: 0.1s; }
.delay-2 { animation-delay: 0.2s; }
.delay-3 { animation-delay: 0.3s; }

/* ========================================
   PRINT
   ======================================== */
@media print {
    body::before { display: none; }
    .site-header, .site-footer, .theme-toggle, .copy-citation, .archive-filters { display: none; }
    .site-content { padding-top: 0; }
    .article-header, .article-body { padding: 20px 0; }
    a { color: inherit; text-decoration: underline; }
}