/* ==========================================================
   Page-Specific Styles
   ========================================================== */

/* ── Hero Section (Home) ────────────────────────────── */
.hero {
    text-align: center;
    padding: var(--spacing-24) 0 var(--spacing-16);
    max-width: 800px;
    margin: 0 auto;
    position: relative;
    z-index: 1;
}

/* Hero banner background */
.hero-banner-bg {
    position: absolute;
    top: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 100vw;
    height: 100%;
    background: url('../banner.jpg') center center / cover no-repeat;
    mix-blend-mode: multiply;
    opacity: 1;
    z-index: -1;
    pointer-events: none;
}

[data-theme="dark"] .hero-banner-bg {
    mix-blend-mode: screen;
    opacity: 1;
}


.hero h1 {
    margin-bottom: var(--spacing-6);
}

.hero p {
    font-size: 1.125rem;
    color: var(--color-text-secondary);
    max-width: 600px;
    margin: 0 auto var(--spacing-8);
}

/* Hero buttons — ensure visibility on banner */
.hero .btn-primary {
    background: #ffffff;
    color: #09090b;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.15);
}

.hero .btn-primary:hover {
    background: #f0f0f0;
    color: #09090b;
}

.hero .btn-secondary {
    background: rgba(255, 255, 255, 0.15);
    color: #ffffff;
    border-color: rgba(255, 255, 255, 0.3);
    backdrop-filter: blur(4px);
}

.hero .btn-secondary:hover {
    background: rgba(255, 255, 255, 0.25);
    color: #ffffff;
}

/* Light mode — dark buttons on banner */
:root:not([data-theme="dark"]) .hero .btn-primary {
    background: #09090b;
    color: #ffffff;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.2);
}

:root:not([data-theme="dark"]) .hero .btn-primary:hover {
    background: #27272a;
}

:root:not([data-theme="dark"]) .hero .btn-secondary {
    background: #ffffff;
    color: #09090b;
    border-color: #e4e4e7;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
}

:root:not([data-theme="dark"]) .hero .btn-secondary:hover {
    background: #f4f4f5;
}

.hero-actions {
    display: flex;
    gap: var(--spacing-4);
    justify-content: center;
    flex-wrap: wrap;
}

/* ── Page Header ────────────────────────────────────── */
.page-header {
    padding: var(--spacing-16) 0 var(--spacing-12);
    text-align: center;
}

.page-header h1 {
    margin-bottom: var(--spacing-4);
}

.page-header p {
    font-size: 1.125rem;
    color: var(--color-text-secondary);
    max-width: 600px;
    margin: 0 auto;
}

/* ── News / Timeline ────────────────────────────────── */
.news-list {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-6);
}

.news-item {
    display: flex;
    gap: var(--spacing-6);
    padding-bottom: var(--spacing-6);
    border-bottom: 1px solid var(--color-border);
    transition: border-color var(--transition-slow);
}

.news-item:last-child {
    border-bottom: none;
    padding-bottom: 0;
}

.news-year {
    flex-shrink: 0;
    width: 4rem;
    font-size: var(--font-size-caption);
    font-weight: var(--font-weight-semibold);
    color: var(--color-text-muted);
    padding-top: 0.15rem;
}

.news-content h3 {
    font-size: var(--font-size-body);
    font-weight: var(--font-weight-semibold);
    margin-bottom: var(--spacing-1);
}

.news-content p {
    font-size: var(--font-size-caption);
}

/* ── Publications ───────────────────────────────────── */
.pub-section {
    margin-bottom: var(--spacing-16);
}

.pub-section:last-child {
    margin-bottom: 0;
}

.pub-year-group {
    margin-bottom: var(--spacing-12);
}

.pub-year-group:last-child {
    margin-bottom: 0;
}

.pub-year {
    font-size: var(--font-size-page-title);
    font-weight: var(--font-weight-bold);
    margin-bottom: var(--spacing-6);
    color: var(--color-text-primary);
}

.pub-list {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-4);
}

.pub-item {
    display: flex;
    gap: var(--spacing-4);
    padding: var(--spacing-5);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    transition: border-color var(--transition-base), background-color var(--transition-slow);
    background: var(--color-surface);
}

.pub-item:hover {
    border-color: var(--color-text-muted);
}

.pub-icon {
    flex-shrink: 0;
    color: var(--color-text-muted);
    padding-top: 0.15rem;
}

.pub-icon svg {
    width: 20px;
    height: 20px;
    stroke: currentColor;
    fill: none;
    stroke-width: 2;
    stroke-linecap: round;
    stroke-linejoin: round;
}

.pub-details h3,
.pub-content h3 {
    font-size: var(--font-size-body);
    font-weight: var(--font-weight-semibold);
    margin-bottom: var(--spacing-1);
}

.pub-authors {
    font-size: var(--font-size-caption);
    color: var(--color-text-secondary);
    margin-bottom: var(--spacing-3);
}

.pub-meta {
    display: flex;
    align-items: center;
    gap: var(--spacing-3);
    flex-wrap: wrap;
}

.pub-links {
    display: flex;
    gap: var(--spacing-3);
}

.pub-links a {
    font-size: var(--font-size-caption);
    font-weight: var(--font-weight-medium);
    color: var(--color-text-secondary);
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-1);
}

.pub-links a:hover {
    color: var(--color-text-primary);
}

.pub-links a svg {
    width: 14px;
    height: 14px;
    stroke: currentColor;
    fill: none;
    stroke-width: 2;
}

/* ── Members ────────────────────────────────────────── */
.member-section {
    margin-bottom: var(--spacing-16);
}

.member-section:last-child {
    margin-bottom: 0;
}

.member-card {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    padding: var(--spacing-8) var(--spacing-6);
}

.member-card .avatar-initials {
    margin-bottom: var(--spacing-4);
}

.member-card h3 {
    margin-bottom: var(--spacing-1);
}

.member-role {
    font-size: var(--font-size-caption);
    color: var(--color-accent-start);
    font-weight: var(--font-weight-medium);
    margin-bottom: var(--spacing-3);
}

.member-bio {
    font-size: var(--font-size-caption);
    color: var(--color-text-secondary);
    margin-bottom: var(--spacing-4);
    max-width: 30ch;
}

.member-social {
    display: flex;
    gap: var(--spacing-3);
}

.member-social a {
    color: var(--color-text-muted);
    transition: color var(--transition-base);
}

.member-social a:hover {
    color: var(--color-text-primary);
}

.member-social a svg {
    width: 18px;
    height: 18px;
    stroke: currentColor;
    fill: none;
    stroke-width: 2;
    stroke-linecap: round;
    stroke-linejoin: round;
}

/* ── Achievements ───────────────────────────────────── */
.achievement-card {
    padding: var(--spacing-6);
}

.achievement-card .card-icon {
    color: var(--color-accent-start);
}

.achievement-card h3 {
    margin-bottom: var(--spacing-1);
}

.achievement-year {
    font-size: var(--font-size-small);
    color: var(--color-text-muted);
    margin-bottom: var(--spacing-3);
}

.achievement-card>p {
    font-size: var(--font-size-caption);
}

/* Milestones Timeline */
.milestones {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-6);
}

.milestone-item {
    display: flex;
    gap: var(--spacing-4);
    align-items: flex-start;
}

.milestone-marker {
    display: flex;
    flex-direction: column;
    align-items: center;
    flex-shrink: 0;
    padding-top: var(--spacing-1);
}

.milestone-dot {
    width: 0.75rem;
    height: 0.75rem;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--color-accent-start), var(--color-accent-end));
}

.milestone-line {
    width: 2px;
    flex: 1;
    background: var(--color-border);
    min-height: 2rem;
}

.milestone-content h3 {
    font-size: var(--font-size-body);
    font-weight: var(--font-weight-semibold);
    margin-bottom: var(--spacing-1);
}

.milestone-content .milestone-year {
    font-size: var(--font-size-small);
    color: var(--color-text-muted);
    margin-bottom: var(--spacing-2);
}

.milestone-content p {
    font-size: var(--font-size-caption);
}

.milestone-content .milestone-team {
    font-size: var(--font-size-small);
    color: var(--color-text-muted);
    font-style: italic;
    margin-top: var(--spacing-2);
}

.winner-dot {
    box-shadow: 0 0 8px 2px rgba(16, 185, 129, 0.4);
}

.milestone-content a {
    color: var(--color-accent-start);
    text-decoration: underline;
    text-underline-offset: 2px;
}

/* ── 404 Page ───────────────────────────────────────── */
.error-page {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    min-height: 60vh;
    text-align: center;
}

.error-page h1 {
    font-size: 6rem;
    background: linear-gradient(135deg, var(--color-accent-start), var(--color-accent-end));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: var(--spacing-4);
}

.error-page h2 {
    font-size: var(--font-size-page-title);
    margin-bottom: var(--spacing-4);
}

.error-page p {
    margin-bottom: var(--spacing-8);
}