/* main.css - IberoSing 2026 Modern Design - Light Theme */

/* ==================== CSS Variables ==================== */
:root {
    /* Primary Colors - Light Theme */
    --primary-dark: #f8fafc;
    --primary-mid: #f1f5f9;
    --primary-light: #e2e8f0;

    /* Accent Colors - Teal/Slate Blue */
    --accent-primary: #0d9488;
    --accent-secondary: #0891b2;
    --accent-tertiary: #2563eb;
    --accent-gradient: linear-gradient(135deg, #0d9488 0%, #0891b2 50%, #2563eb 100%);

    /* Text Colors */
    --text-primary: #1e293b;
    --text-secondary: #475569;
    --text-muted: #64748b;

    /* Glassmorphism - Light */
    --glass-bg: rgba(255, 255, 255, 0.8);
    --glass-border: rgba(148, 163, 184, 0.3);
    --glass-shadow: 0 8px 32px rgba(0, 0, 0, 0.08);

    /* Spacing */
    --container-width: 1320px;
    --section-padding: 4rem;

    /* Transitions */
    --transition-fast: 0.2s ease;
    --transition-normal: 0.3s ease;
    --transition-slow: 0.5s ease;

    /* Border Radius */
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 20px;
    --radius-full: 9999px;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    background: var(--primary-dark);
    background-image:
        radial-gradient(ellipse at 20% 0%, rgba(13, 148, 136, 0.08) 0%, transparent 50%),
        radial-gradient(ellipse at 80% 100%, rgba(8, 145, 178, 0.06) 0%, transparent 50%),
        radial-gradient(ellipse at 50% 50%, rgba(37, 99, 235, 0.03) 0%, transparent 70%);
    background-attachment: fixed;
    color: var(--text-primary);
    font-size: 16px;
    line-height: 1.7;
    min-height: 100vh;
}

/* ==================== Typography ==================== */
h1,
h2,
h3,
h4,
h5,
h6 {
    font-weight: 700;
    line-height: 1.3;
    margin-bottom: 1rem;
    background: var(--accent-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

h1 {
    font-size: 3rem;
}

h2 {
    font-size: 2.25rem;
    margin-top: 3rem;
}

h3 {
    font-size: 1.75rem;
}

h4 {
    font-size: 1.25rem;
    color: var(--accent-primary);
    -webkit-text-fill-color: var(--accent-primary);
}

p {
    color: var(--text-secondary);
    margin-bottom: 1.5rem;
    max-width: none;
}

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

a:hover {
    color: var(--accent-secondary);
    text-decoration: underline;
}

strong,
b {
    font-weight: 600;
    color: var(--text-primary);
}

em,
i {
    font-style: italic;
}

/* ==================== Container ==================== */
.container {
    width: 100%;
    max-width: var(--container-width);
    margin: 0 auto;
    padding: 0 2rem;
}

/* ==================== Banner ==================== */
.banner {
    position: relative;
    width: 100%;
    max-width: var(--container-width);
    margin: 0 auto;
    overflow: hidden;
    border-radius: 0 0 var(--radius-lg) var(--radius-lg);
}

.banner img {
    width: 100%;
    height: auto;
    display: block;
    filter: brightness(0.9);
}

.banner::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 100px;
    background: linear-gradient(to top, var(--primary-dark), transparent);
    pointer-events: none;
}

/* ==================== Navigation ==================== */
.barra-navegacion {
    background: var(--glass-bg);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-lg);
    max-width: var(--container-width);
    margin: 1rem auto;
    padding: 0.75rem 1.5rem;
    display: flex;
    justify-content: center;
    gap: 0.5rem;
    flex-wrap: wrap;
    box-shadow: var(--glass-shadow);
    position: sticky;
    top: 1rem;
    z-index: 1000;
}

.item-navegacion {
    color: var(--text-secondary) !important;
    font-weight: 500;
    font-size: 0.95rem;
    padding: 0.75rem 1.25rem;
    border-radius: var(--radius-full);
    transition: all var(--transition-normal);
    text-decoration: none !important;
}

.item-navegacion:hover {
    color: var(--text-primary) !important;
    background: rgba(99, 102, 241, 0.2);
    transform: translateY(-2px);
}

.item-navegacion-mark {
    background: var(--accent-gradient) !important;
    color: white !important;
    font-weight: 600;
    font-size: 0.95rem;
    padding: 0.75rem 1.25rem;
    border-radius: var(--radius-full);
    box-shadow: 0 4px 15px rgba(99, 102, 241, 0.4);
    text-decoration: none !important;
}

/* ==================== Title Section ==================== */
.title {
    text-align: center;
    padding: 3rem 2rem;
    max-width: var(--container-width);
    margin: 0 auto;
}

.title h1,
.title-main {
    font-size: 2.5rem;
    background: var(--accent-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 1rem;
    line-height: 1.3;
}

.title-subtitle {
    font-size: 1.25rem;
    color: var(--text-muted);
    font-weight: 400;
}

/* ==================== Venue Cards ==================== */
.venue-cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    max-width: var(--container-width);
    margin: 2rem auto;
    padding: 0 2rem;
}

.venue-card {
    background: var(--glass-bg);
    backdrop-filter: blur(10px);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-lg);
    padding: 2rem;
    transition: all var(--transition-normal);
    position: relative;
    overflow: hidden;
}

.venue-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: var(--accent-gradient);
}

.venue-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 20px 40px rgba(99, 102, 241, 0.2);
    border-color: rgba(99, 102, 241, 0.3);
}

.venue-card h3 {
    margin-top: 0;
}

.venue-date {
    display: inline-block;
    background: rgba(99, 102, 241, 0.2);
    color: var(--accent-primary);
    padding: 0.5rem 1rem;
    border-radius: var(--radius-full);
    font-size: 0.9rem;
    font-weight: 600;
    margin-bottom: 1rem;
}

.venue-location {
    color: var(--text-muted);
    font-size: 0.95rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

/* ==================== Main Content ==================== */
main,
.content {
    max-width: var(--container-width);
    margin: 0 auto;
    padding: 2rem;
}

/* ==================== Glass Cards ==================== */
.glass-card {
    background: var(--glass-bg);
    backdrop-filter: blur(10px);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-lg);
    padding: 2rem;
    margin-bottom: 2rem;
}

/* ==================== Lists ==================== */
ul,
ol {
    color: var(--text-secondary);
    margin: 1.5rem 0;
    padding-left: 1.5rem;
}

ul li,
ol li {
    margin-bottom: 0.75rem;
    line-height: 1.6;
}

.speaker-affiliation {
    display: block;
    margin-top: 0.15rem;
    color: var(--text-muted);
    font-size: 0.9rem;
}

ul.articles {
    list-style: none;
    padding-left: 0;
}

ul.articles li {
    padding: 0.5rem 0;
    border-bottom: 1px solid var(--glass-border);
}

ul.articles li:last-child {
    border-bottom: none;
}

/* ==================== Tables ==================== */
table {
    width: 100%;
    max-width: var(--container-width);
    margin: 2rem auto;
    border-collapse: collapse;
}

th,
td {
    padding: 1rem;
    text-align: left;
    color: var(--text-secondary);
}

/* ==================== Organizers Grid ==================== */
table.organizers {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 1rem;
    max-width: var(--container-width);
}

table.organizers tr {
    display: contents;
}

td.organizer {
    background: rgba(148, 163, 184, 0.15);
    border: none;
    border-radius: var(--radius-full);
    padding: 0.5rem 1rem;
    text-align: center;
    transition: all var(--transition-normal);
}

td.organizer:hover {
    transform: translateY(-3px);
    border-color: rgba(99, 102, 241, 0.3);
}

td.organizer h4 {
    margin: 0;
    color: var(--text-primary);
    -webkit-text-fill-color: var(--text-primary);
    font-size: 1rem;
}

td.organizer div {
    color: var(--text-muted);
    font-size: 0.9rem;
}

td.organizer img {
    max-width: 150px;
    height: auto;
    margin: 0.5rem auto;
    filter: brightness(0.95);
    transition: filter var(--transition-normal);
}

td.organizer:hover img {
    filter: brightness(1.1);
}

/* ==================== Program Tables ==================== */
td.room {
    font-size: 1.5rem;
    color: var(--accent-primary);
    padding: 1rem;
    border-bottom: 2px solid var(--glass-border);
}

td.date {
    color: var(--text-muted);
    font-size: 0.9rem;
}

td.title-cell {
    font-size: 1.25rem;
    color: var(--text-primary);
    font-weight: 600;
}

td.speaker {
    color: var(--accent-secondary);
    font-style: italic;
}

td.abstract {
    color: var(--text-secondary);
    font-size: 0.95rem;
    line-height: 1.6;
}

table.plenary {
    background: rgba(99, 102, 241, 0.1);
    border-radius: var(--radius-md);
}

/* ==================== Buttons ==================== */
.btn {
    display: inline-block;
    padding: 0.875rem 2rem;
    border-radius: var(--radius-full);
    font-weight: 600;
    font-size: 1rem;
    text-decoration: none;
    transition: all var(--transition-normal);
    cursor: pointer;
    border: none;
}

.btn-primary {
    background: var(--accent-gradient);
    color: white;
    box-shadow: 0 4px 15px rgba(99, 102, 241, 0.4);
}

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 25px rgba(99, 102, 241, 0.5);
    color: white;
    text-decoration: none;
}

.btn-secondary {
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    color: var(--text-primary);
}

.btn-secondary:hover {
    background: rgba(255, 255, 255, 0.1);
    color: var(--text-primary);
    text-decoration: none;
}

/* ==================== Deadline Badge ==================== */
.deadline {
    display: inline-block;
    background: linear-gradient(135deg, #ef4444, #f97316);
    color: white;
    padding: 0.5rem 1rem;
    border-radius: var(--radius-full);
    font-weight: 600;
    font-size: 0.9rem;
}

/* ==================== Info Box ==================== */
.info-box {
    background: rgba(99, 102, 241, 0.1);
    border-left: 4px solid var(--accent-primary);
    padding: 1.5rem;
    border-radius: 0 var(--radius-md) var(--radius-md) 0;
    margin: 1.5rem 0;
}

.info-box p {
    margin: 0;
}

/* ==================== Map Embed ==================== */
.map-container {
    border-radius: var(--radius-lg);
    overflow: hidden;
    margin: 2rem 0;
    box-shadow: var(--glass-shadow);
}

.map-container iframe {
    width: 100%;
    height: 450px;
    border: none;
}

/* ==================== Venue Tabs ==================== */
.venue-tabs {
    display: flex;
    gap: 1rem;
    margin-bottom: 2rem;
    flex-wrap: wrap;
}

.venue-tab {
    padding: 1rem 2rem;
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-full);
    color: var(--text-secondary);
    font-weight: 500;
    cursor: pointer;
    transition: all var(--transition-normal);
}

.venue-tab:hover,
.venue-tab.active {
    background: var(--accent-gradient);
    color: white;
    border-color: transparent;
}

.venue-content {
    display: none;
}

.venue-content.active {
    display: block;
    animation: fadeIn 0.3s ease;
}

/* ==================== Schedule Grid ==================== */
.schedule-grid {
    width: 100%;
    border-collapse: collapse;
    margin: 1.5rem 0;
    font-size: 0.9rem;
    background: var(--glass-bg);
    border-radius: var(--radius-md);
    overflow: hidden;
    border: 1px solid var(--glass-border);
}

.schedule-grid th,
.schedule-grid td {
    padding: 0.75rem 0.5rem;
    text-align: center;
    border: 1px solid var(--glass-border);
    vertical-align: middle;
}

.schedule-grid thead th {
    background: var(--accent-gradient);
    color: white;
    font-weight: 600;
    font-size: 0.95rem;
    padding: 1rem 0.5rem;
}

.schedule-grid .time-col {
    background: rgba(13, 148, 136, 0.1);
    font-weight: 600;
    color: var(--accent-primary);
    white-space: nowrap;
    width: 80px;
}

/* Session types with color coding */
.schedule-grid .session-minicourse1 {
    background: rgba(13, 148, 136, 0.15);
    color: var(--text-primary);
    font-weight: 500;
}

.schedule-grid .session-minicourse2 {
    background: rgba(8, 145, 178, 0.15);
    color: var(--text-primary);
    font-weight: 500;
}

.schedule-grid .session-talk {
    background: rgba(37, 99, 235, 0.12);
    color: var(--text-primary);
}

.schedule-grid .session-poster {
    background: rgba(139, 92, 246, 0.12);
    color: var(--text-primary);
}

.schedule-grid .session-break {
    background: rgba(148, 163, 184, 0.15);
    color: var(--text-muted);
    font-style: italic;
}

.schedule-grid .session-social {
    background: rgba(236, 72, 153, 0.1);
    color: var(--text-primary);
}

.schedule-grid .session-registration {
    background: rgba(34, 197, 94, 0.12);
    color: var(--text-primary);
}

.schedule-grid .session-free {
    background: transparent;
    color: var(--text-muted);
}

.schedule-grid .session-empty {
    background: rgba(148, 163, 184, 0.05);
    color: var(--text-muted);
}

/* Speaker name styling */
.schedule-grid .speaker-name {
    display: block;
    font-size: 0.8rem;
    color: var(--accent-secondary);
    font-style: italic;
    margin-top: 0.25rem;
}

/* Talk title styling */
.schedule-grid .talk-title {
    display: block;
    font-weight: 500;
}

/* Schedule legend */
.schedule-legend {
    display: flex;
    flex-wrap: wrap;
    gap: 1rem;
    margin: 1rem 0 1.5rem 0;
    padding: 1rem;
    background: var(--glass-bg);
    border-radius: var(--radius-sm);
    border: 1px solid var(--glass-border);
}

.legend-item {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.85rem;
}

.legend-color {
    width: 16px;
    height: 16px;
    border-radius: 4px;
    border: 1px solid var(--glass-border);
}

.legend-color.minicourse1 {
    background: rgba(13, 148, 136, 0.3);
}

.legend-color.minicourse2 {
    background: rgba(8, 145, 178, 0.3);
}

.legend-color.talk {
    background: rgba(37, 99, 235, 0.25);
}

.legend-color.poster {
    background: rgba(139, 92, 246, 0.25);
}

.legend-color.break {
    background: rgba(148, 163, 184, 0.3);
}

.legend-color.social {
    background: rgba(236, 72, 153, 0.2);
}

/* Responsive schedule */
@media (max-width: 768px) {
    .schedule-grid {
        font-size: 0.75rem;
    }

    .schedule-grid th,
    .schedule-grid td {
        padding: 0.5rem 0.25rem;
    }

    .schedule-grid .time-col {
        width: 60px;
    }

    .schedule-legend {
        flex-direction: column;
        gap: 0.5rem;
    }
}

/* ==================== Popup Styles ==================== */
.text_container {
    cursor: pointer;
    margin: 1rem 0;
}

.text_container .vis {
    color: var(--accent-primary);
    font-weight: 600;
    padding: 0.5rem 0;
}

.text_container .hid {
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-md);
    padding: 1.5rem;
    margin-top: 0.5rem;
    color: var(--text-secondary);
}

.hidden>.hid {
    display: none;
}

.visible>.hid {
    display: block;
    animation: fadeIn 0.3s ease;
}

/* ==================== Footer ==================== */
.footer,
footer {
    text-align: center;
    padding: 3rem 2rem;
    color: var(--text-muted);
    border-top: 1px solid var(--glass-border);
    margin-top: 4rem;
}

/* ==================== Animations ==================== */
@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(10px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes slideIn {
    from {
        opacity: 0;
        transform: translateX(-20px);
    }

    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes pulse {

    0%,
    100% {
        opacity: 1;
    }

    50% {
        opacity: 0.7;
    }
}

.animate-fade-in {
    animation: fadeIn 0.5s ease forwards;
}

/* ==================== Responsive Design ==================== */
@media (max-width: 1024px) {
    :root {
        --container-width: 100%;
    }

    h1 {
        font-size: 2.25rem;
    }

    h2 {
        font-size: 1.75rem;
    }

    .title h1,
    .title-main {
        font-size: 2rem;
    }
}

@media (max-width: 768px) {
    body {
        font-size: 15px;
    }

    h1 {
        font-size: 1.75rem;
    }

    h2 {
        font-size: 1.5rem;
    }

    h3 {
        font-size: 1.25rem;
    }

    .barra-navegacion {
        margin: 0.5rem;
        padding: 0.5rem;
        gap: 0.25rem;
        position: relative;
        top: 0;
    }

    .item-navegacion,
    .item-navegacion-mark {
        font-size: 0.85rem;
        padding: 0.5rem 0.75rem;
    }

    .title {
        padding: 2rem 1rem;
    }

    .title h1,
    .title-main {
        font-size: 1.5rem;
    }

    .venue-cards {
        grid-template-columns: 1fr;
        padding: 0 1rem;
    }

    main,
    .content {
        padding: 1rem;
    }

    table.organizers {
        grid-template-columns: 1fr;
    }

    .map-container iframe {
        height: 300px;
    }
}

@media (max-width: 480px) {
    h1 {
        font-size: 1.5rem;
    }

    h2 {
        font-size: 1.25rem;
    }

    .barra-navegacion {
        flex-direction: column;
        align-items: stretch;
        text-align: center;
    }

    .title h1,
    .title-main {
        font-size: 1.25rem;
    }

    .btn {
        width: 100%;
        text-align: center;
    }
}

/* ==================== Print Styles ==================== */
@media print {
    body {
        background: white;
        color: black;
    }

    .barra-navegacion {
        display: none;
    }

    h1,
    h2,
    h3,
    h4 {
        background: none;
        -webkit-text-fill-color: black;
        color: black;
    }
}

/* ==================== Legacy Compatibility ==================== */
/* These maintain compatibility with existing HTML structure */

figure {
    margin: 2rem 0;
    text-align: center;
}

figure img {
    max-width: 100%;
    height: auto;
    border-radius: var(--radius-md);
}

center {
    display: block;
    text-align: center;
}

/* Quotes */
q {
    font-style: italic;
    color: var(--accent-secondary);
}

q::before {
    content: '"';
}

q::after {
    content: '"';
}

/* Superscript and Subscript */
sup {
    vertical-align: super;
    font-size: 0.8em;
    line-height: 0;
}

sub {
    vertical-align: sub;
    font-size: 0.8em;
    line-height: 0;
}

/* ==================== Funding Section ==================== */
.funding-section {
    text-align: center;
    margin: 2rem 0;
}

.funding-logos {
    display: flex;
    flex-wrap: nowrap;
    justify-content: center;
    align-items: center;
    gap: clamp(0.75rem, 1.5vw, 1.5rem);
    margin-bottom: 1.5rem;
}

.funding-logos a {
    display: block;
    transition: transform var(--transition-normal);
    flex: 0 1 auto;
    min-width: 0;
}

.funding-logos a:hover {
    transform: scale(1.05);
}

.funding-logos img {
    height: clamp(70px, 6vw, 90px);
    width: auto;
    max-width: clamp(220px, 18vw, 290px);
    object-fit: contain;
    filter: brightness(0.95);
    transition: filter var(--transition-normal);
}

.funding-logos a:hover img {
    filter: brightness(1.05);
}

.grant-code {
    background: rgba(13, 148, 136, 0.1);
    color: var(--text-secondary);
    padding: 0.75rem 1.5rem;
    border-radius: var(--radius-full);
    display: inline-block;
    font-size: 0.9rem;
    font-weight: 500;
    border: 1px solid var(--glass-border);
}

@media (max-width: 768px) {
    .funding-logos {
        flex-wrap: wrap;
        gap: 1.5rem;
    }

    .funding-logos img {
        height: 60px;
        max-width: 180px;
    }

    .grant-code {
        font-size: 0.8rem;
        padding: 0.5rem 1rem;
    }
}

/* Import Google Fonts */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&display=swap');