/* Conference landing & registration */

:root {

    --conf-primary: #1a4d4d;

    --conf-accent: #4a8585;

    --conf-accent-hover: #3d7171;

    --conf-gold: #c9a227;

    --conf-bg: #f4f7f7;

    --conf-card: #ffffff;

    --conf-border: #e2e8e8;

    --conf-text: #1f2937;

    --conf-muted: #6b7280;

}



.conference-page {

    background: var(--conf-bg);

    padding-bottom: 4rem;

}



.conf-hero {

    position: relative;

    min-height: 320px;

    background: linear-gradient(135deg, #0f3333 0%, var(--conf-primary) 45%, var(--conf-accent) 100%);

    color: #fff;

    overflow: hidden;

}



.conf-hero__bg {

    position: absolute;

    inset: 0;

    background-size: cover;

    background-position: center;

    opacity: 0.35;

}



.conf-hero__overlay {

    position: absolute;

    inset: 0;

    background: linear-gradient(90deg, rgba(15, 51, 51, 0.92) 0%, rgba(26, 77, 77, 0.75) 100%);

}



.conf-hero__inner {

    position: relative;

    z-index: 2;

    padding: 3.5rem 0 3rem;

    max-width: 720px;

}



.conf-hero__badge {

    display: inline-block;

    padding: 0.35rem 0.85rem;

    background: rgba(201, 162, 39, 0.25);

    border: 1px solid var(--conf-gold);

    color: #f5e6b8;

    font-size: 0.7rem;

    font-weight: 600;

    letter-spacing: 0.12em;

    text-transform: uppercase;

    border-radius: 2px;

    margin-bottom: 1rem;

}



.conf-hero__title {

    font-family: 'Playfair Display', Georgia, serif;

    font-size: clamp(1.75rem, 4vw, 2.75rem);

    font-weight: 700;

    line-height: 1.2;

    margin-bottom: 1rem;

}



.conf-hero__meta {

    display: flex;

    flex-wrap: wrap;

    gap: 1.25rem;

    font-size: 0.9rem;

    opacity: 0.95;

}



.conf-hero__meta span {

    display: inline-flex;

    align-items: center;

    gap: 0.4rem;

}



.conf-layout {

    display: grid;

    grid-template-columns: 1fr 320px;

    gap: 2rem;

    margin-top: -2rem;

    position: relative;

    z-index: 3;

    align-items: start;

}



.conf-main-card {

    background: var(--conf-card);

    border-radius: 8px;

    box-shadow: 0 4px 24px rgba(26, 77, 77, 0.08);

    border: 1px solid var(--conf-border);

    overflow: hidden;

}



.conf-tabs {

    display: flex;

    border-bottom: 1px solid var(--conf-border);

    background: #fafbfb;

}



.conf-tab-btn {

    flex: 1;

    padding: 1rem 1.25rem;

    border: none;

    background: transparent;

    font-size: 0.8rem;

    font-weight: 600;

    letter-spacing: 0.04em;

    text-transform: uppercase;

    color: var(--conf-muted);

    cursor: pointer;

    position: relative;

    transition: color 0.2s, background 0.2s;

}



.conf-tab-btn:hover:not(:disabled) {

    color: var(--conf-primary);

    background: rgba(74, 133, 133, 0.06);

}



.conf-tab-btn.active {

    color: var(--conf-accent);

    background: #fff;

}



.conf-tab-btn.active::after {

    content: '';

    position: absolute;

    bottom: -1px;

    left: 0;

    right: 0;

    height: 3px;

    background: var(--conf-accent);

}



.conf-tab-btn:disabled {

    opacity: 0.45;

    cursor: not-allowed;

}



.conf-tab-panel {

    display: none;

    padding: 2rem;

    animation: confFadeIn 0.35s ease;

}



.conf-tab-panel.active {

    display: block;

}



@keyframes confFadeIn {

    from { opacity: 0; transform: translateY(8px); }

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

}



.conf-section-title {

    font-size: 1.25rem;

    font-weight: 700;

    color: var(--conf-primary);

    margin-bottom: 1.25rem;

    padding-bottom: 0.5rem;

    border-bottom: 2px solid var(--conf-accent);

    display: inline-block;

}



.conf-detail-grid {

    display: grid;

    grid-template-columns: repeat(2, 1fr);

    gap: 1rem;

    margin-bottom: 1.5rem;

}



.conf-detail-item label {

    display: block;

    font-size: 0.7rem;

    text-transform: uppercase;

    letter-spacing: 0.06em;

    color: var(--conf-muted);

    margin-bottom: 0.25rem;

}



.conf-detail-item p {

    margin: 0;

    font-weight: 600;

    color: var(--conf-text);

}



.conf-speakers {

    display: grid;

    gap: 1rem;

    margin: 1.5rem 0;

}



.conf-speaker-card {

    display: flex;

    gap: 1rem;

    align-items: flex-start;

    padding: 1rem;

    background: var(--conf-bg);

    border-radius: 6px;

    border-left: 3px solid var(--conf-accent);

}



.conf-speaker-card__photo {

    width: 72px;

    height: 72px;

    object-fit: cover;

    border-radius: 8px;

    flex-shrink: 0;

}



.conf-speaker-card__bio {

    margin-top: 0.35rem !important;

    font-size: 0.875rem;

    line-height: 1.5;

}



.conf-speaker-card h4 {

    margin: 0 0 0.25rem;

    font-size: 1rem;

    color: var(--conf-primary);

}



.conf-speaker-card p {

    margin: 0;

    font-size: 0.85rem;

    color: var(--conf-muted);

}



.conf-agenda {

    list-style: none;

    padding: 0;

    margin: 1rem 0;

}



.conf-agenda li {

    display: flex;

    gap: 1rem;

    padding: 0.85rem 0;

    border-bottom: 1px solid var(--conf-border);

}



.conf-agenda__time {

    min-width: 70px;

    font-weight: 700;

    color: var(--conf-accent);

    font-size: 0.85rem;

}



.conf-description {

    color: var(--conf-muted);

    line-height: 1.7;

    margin-bottom: 1.5rem;

}



.conf-seats-badge {

    display: inline-flex;

    align-items: center;

    gap: 0.5rem;

    padding: 0.5rem 1rem;

    background: rgba(74, 133, 133, 0.12);

    color: var(--conf-primary);

    border-radius: 4px;

    font-weight: 600;

    margin-bottom: 1.5rem;

}



.conf-btn {

    display: inline-flex;

    align-items: center;

    justify-content: center;

    gap: 0.5rem;

    padding: 0.9rem 1.75rem;

    font-size: 0.8rem;

    font-weight: 600;

    letter-spacing: 0.06em;

    text-transform: uppercase;

    border: none;

    border-radius: 4px;

    cursor: pointer;

    text-decoration: none;

    transition: background 0.2s, transform 0.15s;

}



.conf-btn--primary {

    background: var(--conf-accent);

    color: #fff;

}



.conf-btn--primary:hover {

    background: var(--conf-accent-hover);

    color: #fff;

}



.conf-btn--outline {

    background: transparent;

    color: var(--conf-accent);

    border: 2px solid var(--conf-accent);

}



.conf-btn--outline:hover {

    background: var(--conf-accent);

    color: #fff;

}



.conf-form-grid {

    display: grid;

    grid-template-columns: repeat(2, 1fr);

    gap: 1.25rem;

}



.conf-field {

    display: flex;

    flex-direction: column;

    gap: 0.35rem;

}



.conf-field--full {

    grid-column: 1 / -1;

}



.conf-field label {

    font-size: 0.8rem;

    font-weight: 600;

    color: var(--conf-text);

}



.conf-field label span {

    color: #dc2626;

}



.conf-field input,

.conf-field select,

.conf-field textarea {

    padding: 0.65rem 0.85rem;

    border: 1px solid var(--conf-border);

    border-radius: 4px;

    font-size: 0.9rem;

    transition: border-color 0.2s, box-shadow 0.2s;

}



.conf-field input:focus,

.conf-field select:focus,

.conf-field textarea:focus {

    outline: none;

    border-color: var(--conf-accent);

    box-shadow: 0 0 0 3px rgba(74, 133, 133, 0.15);

}



.conf-field.has-error input,

.conf-field.has-error select,

.conf-field.has-error textarea {

    border-color: #dc2626;

}



.conf-field-error {

    font-size: 0.75rem;

    color: #dc2626;

}



.conf-payment-summary {

    background: var(--conf-bg);

    border-radius: 6px;

    padding: 1.5rem;

    margin-bottom: 1.5rem;

}



.conf-payment-row {

    display: flex;

    justify-content: space-between;

    padding: 0.5rem 0;

    font-size: 0.9rem;

}



.conf-payment-row.total {

    border-top: 2px solid var(--conf-border);

    margin-top: 0.5rem;

    padding-top: 1rem;

    font-weight: 700;

    font-size: 1.1rem;

    color: var(--conf-primary);

}



.conf-payment-methods {

    display: grid;

    grid-template-columns: repeat(2, 1fr);

    gap: 0.75rem;

    margin-bottom: 1.5rem;

}



.conf-payment-method {

    position: relative;

}



.conf-payment-method input {

    position: absolute;

    opacity: 0;

}



.conf-payment-method label {

    display: flex;

    align-items: center;

    justify-content: center;

    gap: 0.5rem;

    padding: 0.85rem;

    border: 2px solid var(--conf-border);

    border-radius: 6px;

    cursor: pointer;

    font-size: 0.85rem;

    font-weight: 600;

    transition: border-color 0.2s, background 0.2s;

}



.conf-payment-method input:checked + label {

    border-color: var(--conf-accent);

    background: rgba(74, 133, 133, 0.08);

    color: var(--conf-primary);

}



.conf-form-actions {

    display: flex;

    justify-content: space-between;

    gap: 1rem;

    margin-top: 1.5rem;

    flex-wrap: wrap;

}



.conf-sidebar {

    position: sticky;

    top: 100px;

    display: flex;

    flex-direction: column;

    gap: 1.25rem;

}



.conf-sidebar-card {

    background: var(--conf-card);

    border-radius: 8px;

    border: 1px solid var(--conf-border);

    box-shadow: 0 2px 12px rgba(0, 0, 0, 0.04);

    overflow: hidden;

}



.conf-sidebar-card__head {

    padding: 0.85rem 1rem;

    background: var(--conf-primary);

    color: #fff;

    font-size: 0.75rem;

    font-weight: 600;

    letter-spacing: 0.08em;

    text-transform: uppercase;

}



.conf-sidebar-card__body {

    padding: 0.75rem;

    max-height: 320px;

    overflow-y: auto;

}



.conf-event-mini {

    display: flex;

    gap: 0.75rem;

    padding: 0.75rem;

    border-radius: 6px;

    transition: background 0.2s;

    text-decoration: none;

    color: inherit;

    border-bottom: 1px solid var(--conf-border);

}



.conf-event-mini:last-child {

    border-bottom: none;

}



.conf-event-mini:hover {

    background: var(--conf-bg);

}



.conf-event-mini img {

    width: 64px;

    height: 64px;

    object-fit: cover;

    border-radius: 4px;

    flex-shrink: 0;

}



.conf-event-mini h4 {

    margin: 0 0 0.25rem;

    font-size: 0.85rem;

    color: var(--conf-primary);

    line-height: 1.3;

}



.conf-event-mini p {

    margin: 0;

    font-size: 0.75rem;

    color: var(--conf-muted);

}



.conf-event-mini .conf-btn {

    margin-top: 0.5rem;

    padding: 0.4rem 0.75rem;

    font-size: 0.65rem;

}



.conf-calendar {

    padding: 1rem;

}



.conf-calendar-nav {

    display: flex;

    justify-content: space-between;

    align-items: center;

    margin-bottom: 0.75rem;

    font-weight: 600;

    color: var(--conf-primary);

}



.conf-calendar-nav button {

    background: none;

    border: none;

    color: var(--conf-accent);

    cursor: pointer;

    padding: 0.25rem 0.5rem;

}



.conf-calendar-grid {

    display: grid;

    grid-template-columns: repeat(7, 1fr);

    gap: 2px;

    font-size: 0.7rem;

    text-align: center;

}



.conf-calendar-grid .dow {

    font-weight: 600;

    color: var(--conf-muted);

    padding: 0.25rem;

}



.conf-calendar-grid .day {

    padding: 0.35rem;

    border-radius: 4px;

}



.conf-calendar-grid .day.has-event {

    background: rgba(74, 133, 133, 0.2);

    font-weight: 700;

    color: var(--conf-primary);

}



.conf-calendar-grid .day.today {

    border: 1px solid var(--conf-accent);

}



.conf-toast-container {

    position: fixed;

    bottom: 1.5rem;

    right: 1.5rem;

    z-index: 9999;

    display: flex;

    flex-direction: column;

    gap: 0.5rem;

}



.conf-toast {

    padding: 1rem 1.25rem;

    background: var(--conf-primary);

    color: #fff;

    border-radius: 6px;

    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.15);

    animation: confSlideIn 0.3s ease;

    max-width: 360px;

    font-size: 0.9rem;

}



.conf-toast--error {

    background: #b91c1c;

}



.conf-toast--success {

    background: #047857;

}



@keyframes confSlideIn {

    from { transform: translateX(100%); opacity: 0; }

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

}



.conf-loading-overlay {

    position: fixed;

    inset: 0;

    background: rgba(255, 255, 255, 0.85);

    z-index: 10000;

    display: none;

    align-items: center;

    justify-content: center;

    flex-direction: column;

    gap: 1rem;

}



.conf-loading-overlay.active {

    display: flex;

}



.conf-spinner {

    width: 48px;

    height: 48px;

    border: 4px solid var(--conf-border);

    border-top-color: var(--conf-accent);

    border-radius: 50%;

    animation: confSpin 0.8s linear infinite;

}



@keyframes confSpin {

    to { transform: rotate(360deg); }

}



.conf-success-page {

    text-align: center;

    padding: 4rem 1rem;

    max-width: 640px;

    margin: 0 auto;

}



.conf-success-icon {

    width: 80px;

    height: 80px;

    background: rgba(74, 133, 133, 0.15);

    color: var(--conf-accent);

    border-radius: 50%;

    display: flex;

    align-items: center;

    justify-content: center;

    font-size: 2.5rem;

    margin: 0 auto 1.5rem;

}



.conf-empty {

    padding: 1.5rem;

    text-align: center;

    color: var(--conf-muted);

    font-size: 0.85rem;

}



@media (max-width: 992px) {

    .conf-layout {

        grid-template-columns: 1fr;

        margin-top: 1rem;

    }



    .conf-sidebar {

        position: static;

        order: 2;

    }



    .conf-main-card {

        order: 1;

    }

}



@media (max-width: 576px) {

    .conf-detail-grid,

    .conf-form-grid,

    .conf-payment-methods {

        grid-template-columns: 1fr;

    }



    .conf-tabs {

        flex-direction: column;

    }



    .conf-tab-btn {

        text-align: left;

    }

}



/* Conference hub pages (Speaker, Sponsor) */

.conf-hub {

    padding: 3rem 1rem 4rem;

    max-width: 900px;

}



.conf-hub-title {

    font-family: var(--font-heading, 'Playfair Display', Georgia, serif);

    font-size: clamp(1.75rem, 4vw, 2.25rem);

    color: var(--conf-primary);

    margin: 0 0 1rem;

}



.conf-hub .conf-description {

    font-size: 1rem;

    line-height: 1.7;

    color: var(--conf-muted);

    margin-bottom: 2rem;

}



.conf-hub-cards {

    display: grid;

    grid-template-columns: repeat(2, 1fr);

    gap: 1.5rem;

    margin-bottom: 2rem;

}



.conf-hub-card {

    background: var(--conf-card);

    border: 1px solid var(--conf-border);

    border-radius: 12px;

    padding: 1.5rem;

    box-shadow: 0 4px 16px rgba(26, 77, 77, 0.06);

}



.conf-hub-card h2 {

    font-size: 1.125rem;

    color: var(--conf-primary);

    margin: 0 0 0.75rem;

}



.conf-hub-card p {

    font-size: 0.9375rem;

    line-height: 1.65;

    color: var(--conf-text);

    margin: 0 0 0.75rem;

}



.conf-hub-card p:last-child {

    margin-bottom: 0;

}



.conf-hub-list {

    margin: 0;

    padding-left: 1.25rem;

    font-size: 0.9375rem;

    line-height: 1.65;

    color: var(--conf-text);

}



.conf-hub-list li {

    margin-bottom: 0.5rem;

}



.conf-hub-actions {

    display: flex;

    flex-wrap: wrap;

    gap: 1rem;

    margin: 0;

}



@media (max-width: 768px) {

    .conf-hub-cards {

        grid-template-columns: 1fr;

    }

}