/* iPhone Dynamic Island / notch / safe area – tüm cihazlarda güvenli (env yoksa 0) */
:root {
    --safe-top: env(safe-area-inset-top, 0px);
    --safe-bottom: env(safe-area-inset-bottom, 0px);
    --safe-left: env(safe-area-inset-left, 0px);
    --safe-right: env(safe-area-inset-right, 0px);
    --app-header-offset: 56px;   /* alt sayfalardaki navbar için */
    --hero-top-offset: 15px;    /* ana sayfa logo: status bar altına minimal boşluk */
}

html {
    padding: 0;
    touch-action: manipulation; /* Çift tıklama ile yakınlaştırmayı engeller */
}

body {
    background: radial-gradient(circle at top left, #001B3B 0%, #005F8F 50%, #001B3B 100%);
    min-height: 100vh;
    min-height: 100dvh;
    -webkit-tap-highlight-color: transparent;
    padding-top: 0;
    padding-bottom: var(--safe-bottom);
    padding-left: var(--safe-left);
    padding-right: var(--safe-right);
}

.navbar {
    background: rgba(0, 27, 59, 0.97) !important;
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border-bottom: 1px solid rgba(91, 155, 213, 0.2);
    box-shadow: 0 1px 0 rgba(91, 155, 213, 0.15), 0 2px 12px rgba(0, 0, 0, 0.3);
    padding-top: var(--safe-top);
    padding-left: calc(1rem + var(--safe-left));
    padding-right: calc(1rem + var(--safe-right));
    z-index: 1040;
}

.navbar .navbar-brand {
    color: white !important;
    font-weight: 700;
    font-size: 1rem;
    letter-spacing: 0.03em;
}

.navbar .container-fluid {
    min-height: 48px;
    align-items: center;
}

.navbar .nav-back-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 36px;
    height: 36px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.1);
    color: white;
    text-decoration: none;
    transition: background 0.2s;
    border: none;
}

.navbar .nav-back-btn:hover,
.navbar .nav-back-btn:active {
    background: rgba(255, 255, 255, 0.2);
    color: white;
}

.navbar .btn-link {
    color: white !important;
}

.navbar .btn-link:hover {
    color: rgba(255, 255, 255, 0.8) !important;
}

.page-content {
    background: radial-gradient(circle at top left, #001B3B 0%, #005F8F 50%, #001B3B 100%);
    min-height: 100vh;
}

.home-screen {
    min-height: 100vh;
}

.page-screen {
    display: none;
    min-height: 100vh;
    background: radial-gradient(circle at top left, #001B3B 0%, #005F8F 50%, #001B3B 100%);
}

.page-screen.active {
    display: block;
}

.hero-section {
    background: transparent;
    padding-top: calc(var(--safe-top) + var(--hero-top-offset)) !important;
    padding-left: var(--safe-left);
    padding-right: var(--safe-right);
}

.event-title {
    color: white;
    font-size: 1.25rem;
    font-weight: 700;
    text-shadow: 0 2px 8px rgba(0, 0, 0, 0.2);
    letter-spacing: 0.5px;
}

.app-logo {
    height: 80px;
    width: auto;
    filter: drop-shadow(0 4px 8px rgba(0, 0, 0, 0.3));
    background: transparent;
    mix-blend-mode: screen;
}

.hero-icon i {
    font-size: 6rem;
    color: #64b5f6;
    animation: pulse 2s ease-in-out infinite;
    filter: drop-shadow(0 8px 16px rgba(100, 181, 246, 0.4));
}

@keyframes pulse {
    0%, 100% { transform: scale(1); }
    50% { transform: scale(1.05); }
}

.menu-card {
    background: rgba(255, 255, 255, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: 16px;
    padding: 1.5rem;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 0.75rem;
    min-height: 140px;
    height: 100%;
    transition: all 0.2s ease;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
}

.menu-card:hover {
    background: rgba(255, 255, 255, 0.15);
    transform: translateY(-2px);
    box-shadow: 0 6px 16px rgba(0, 0, 0, 0.15);
}

.menu-card:active {
    transform: scale(0.98);
}

.menu-card i {
    font-size: 2.5rem;
    color: #5B9BD5;
    filter: drop-shadow(0 2px 4px rgba(0, 0, 0, 0.3));
}

.menu-card span {
    color: #ffffff;
    font-size: 1rem;
    font-weight: 600;
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.3);
}

.bg-gradient {
    background: linear-gradient(180deg, #5B9BD5 0%, #7BA7D8 100%);
}

.nav-tabs {
    background: white;
}

.nav-tabs .nav-link {
    color: #6c757d;
    border: none;
    padding: 1rem;
}

.nav-tabs .nav-link.active {
    color: #667eea;
    border-bottom: 3px solid #667eea;
    font-weight: 600;
}

.event-card {
    background: rgba(255, 255, 255, 0.95);
    border-radius: 12px;
    padding: 1rem;
    margin-bottom: 1rem;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.2);
}

.event-card h5 {
    color: #1f2937;
    margin-bottom: 0.5rem;
}

.event-card .text-primary {
    font-size: 0.9rem;
}

.event-card .text-muted {
    font-size: 0.9rem;
}

.program-option-card {
    background: white;
    border: none;
    border-radius: 12px;
    padding: 1.25rem;
    display: flex;
    align-items: center;
    gap: 1rem;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
    transition: all 0.2s ease;
}

.program-option-card:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
}

.program-option-card i:first-child {
    font-size: 1.5rem;
    color: #5B9BD5;
}

.program-option-card span {
    color: #2c3e50;
    font-size: 1.1rem;
    font-weight: 600;
}

.program-option-card i:last-child {
    color: #6c757d;
}

.detail-card {
    background: rgba(255, 255, 255, 0.95);
    border-radius: 12px;
    padding: 1.25rem;
    margin-bottom: 1rem;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.2);
}

.detail-card h5 {
    color: #5B9BD5;
    margin-bottom: 1rem;
    font-weight: 700;
}

.event-item {
    padding: 0.75rem;
    border-left: 3px solid #5B9BD5;
    background: #f8f9fa;
    margin-bottom: 0.75rem;
    border-radius: 4px;
}

.event-item:last-child {
    margin-bottom: 0;
}

.event-item .fw-bold {
    color: #2c3e50;
    margin-bottom: 0.25rem;
}

.accordion-item {
    border: none;
    margin-bottom: 0.5rem;
    border-radius: 12px !important;
    overflow: hidden;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
}

.accordion-button {
    background: white;
    color: #2c3e50;
    font-size: 1.1rem;
    padding: 1.25rem;
}

.accordion-button:not(.collapsed) {
    background: white;
    color: #5B9BD5;
    box-shadow: none;
}

.accordion-button:focus {
    box-shadow: none;
    border-color: transparent;
}

.session-group {
    padding: 1rem;
    border-bottom: 1px solid #e9ecef;
}

.session-group:last-child {
    border-bottom: none;
}

.session-header {
    margin-bottom: 0.75rem;
}

.event-item-accordion {
    padding: 0.75rem;
    border-left: 3px solid #5B9BD5;
    background: #f8f9fa;
    margin-bottom: 0.5rem;
    border-radius: 4px;
}

.event-item-accordion:last-child {
    margin-bottom: 0;
}

.event-item-accordion .fw-bold {
    color: #2c3e50;
    margin-bottom: 0.25rem;
}

.alphabet-filter {
    padding: 0.75rem 0;
    padding-left: var(--safe-left);
    padding-right: var(--safe-right);
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    z-index: 999;
    background: rgba(0, 27, 59, 0.95) !important;
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
}

.alphabet-scroll {
    display: flex;
    gap: 0.5rem;
    overflow-x: auto;
    padding: 0.25rem 1rem;
    scrollbar-width: none;
}

.alphabet-scroll::-webkit-scrollbar {
    display: none;
}

.alphabet-btn {
    min-width: 40px;
    height: 40px;
    border: 2px solid #e9ecef;
    background: white;
    border-radius: 8px;
    font-weight: 600;
    color: #6c757d;
    transition: all 0.2s ease;
    flex-shrink: 0;
}

.alphabet-btn:hover {
    border-color: #5B9BD5;
    color: #5B9BD5;
}

.alphabet-btn.active {
    background: #5B9BD5;
    border-color: #5B9BD5;
    color: white;
}

.letter-group {
    margin-bottom: 1.5rem;
}

.letter-header {
    font-size: 1.5rem;
    font-weight: 700;
    color: #5B9BD5;
    padding: 0.5rem 0;
    border-bottom: 2px solid #5B9BD5;
    margin-bottom: 1rem;
}

.speaker-card {
    background: rgba(255, 255, 255, 0.95);
    border-radius: 12px;
    padding: 1rem;
    margin-bottom: 0.75rem;
    display: flex;
    align-items: center;
    gap: 1rem;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.2);
    transition: all 0.2s ease;
}

.speaker-card:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
}

.speaker-avatar {
    font-size: 3rem;
    color: #5B9BD5;
    flex-shrink: 0;
}

.speaker-info {
    flex: 1;
}

.speaker-name {
    font-weight: 600;
    color: #2c3e50;
    margin-bottom: 0.25rem;
}

.speaker-specialty {
    color: #6c757d;
    font-size: 0.9rem;
}

.speaker-card {
    text-decoration: none;
    color: inherit;
}

.speaker-card i.bi-chevron-right {
    font-size: 1.2rem;
}

.speaker-detail-header {
    text-align: center;
    padding: 2rem 0;
    background: white;
    border-radius: 12px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
    margin-bottom: 1.5rem;
}

.speaker-detail-avatar {
    font-size: 5rem;
    color: #5B9BD5;
    margin-bottom: 1rem;
}

.speaker-detail-name {
    font-weight: 700;
    color: #2c3e50;
    margin-bottom: 0.5rem;
}

.speaker-detail-specialty {
    color: #6c757d;
    font-size: 1rem;
    margin-bottom: 0;
}

.section-title {
    font-weight: 700;
    color: #5B9BD5;
    margin-bottom: 1rem;
}

.session-detail-card {
    background: white;
    border-radius: 12px;
    padding: 1.25rem;
    margin-bottom: 1rem;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
}

.session-detail-header {
    display: flex;
    justify-content: space-between;
    align-items: start;
    gap: 1rem;
    margin-bottom: 1rem;
}

.session-detail-name {
    font-weight: 600;
    color: #2c3e50;
    margin: 0;
    flex: 1;
}

.session-role-badge {
    padding: 0.25rem 0.75rem;
    border-radius: 20px;
    font-size: 0.85rem;
    font-weight: 600;
    white-space: nowrap;
}

.role-speaker {
    background: #e3f2fd;
    color: #1976d2;
}

.role-chair {
    background: #fce4ec;
    color: #c2185b;
}

.role-moderator {
    background: #f3e5f5;
    color: #7b1fa2;
}

.role-panelist {
    background: #e8f5e9;
    color: #388e3c;
}

.session-detail-info {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.session-detail-item {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    color: #6c757d;
    font-size: 0.9rem;
}

.session-detail-item i {
    font-size: 1rem;
}

.category-card {
    display: flex;
    align-items: center;
    justify-content: space-between;
    background: white;
    border-radius: 12px;
    padding: 1.25rem;
    margin-bottom: 0.75rem;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
    text-decoration: none;
    color: inherit;
    transition: all 0.2s ease;
}

.category-card:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
}

.category-info {
    flex: 1;
}

.category-name {
    font-weight: 600;
    color: #2c3e50;
    margin-bottom: 0.25rem;
}

.category-count {
    color: #6c757d;
    font-size: 0.9rem;
    margin: 0;
}

.search-bar {
    z-index: 998;
    background: rgba(0, 27, 59, 0.95) !important;
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    padding: 0.75rem 0;
    padding-left: var(--safe-left);
    padding-right: var(--safe-right);
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.abstract-card {
    display: block;
    background: white;
    border-radius: 12px;
    padding: 1rem;
    margin-bottom: 0.75rem;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
    text-decoration: none;
    color: inherit;
    transition: all 0.2s ease;
}

.abstract-card:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
}

.abstract-code {
    font-weight: 700;
    color: #2c3e50;
    margin-bottom: 0.5rem;
}

.abstract-authors {
    color: #5B9BD5;
    font-size: 0.9rem;
    margin-bottom: 0.5rem;
}

.abstract-title {
    color: #6c757d;
    font-size: 0.9rem;
    line-height: 1.4;
}

.abstract-detail-card {
    background: white;
    border-radius: 12px;
    padding: 1.5rem;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
}

.abstract-detail-header {
    margin-bottom: 1.5rem;
    padding-bottom: 1rem;
    border-bottom: 2px solid #5B9BD5;
}

.abstract-detail-title {
    font-weight: 700;
    color: #2c3e50;
    margin-bottom: 0.75rem;
}

.abstract-detail-meta {
    display: flex;
    gap: 0.5rem;
}

.abstract-detail-section {
    margin-bottom: 1.5rem;
}

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

.abstract-text {
    color: #495057;
    line-height: 1.6;
    text-align: justify;
}

.sponsor-tier-section {
    margin-bottom: 2rem;
}

.sponsor-tier-header {
    padding: 1rem;
    border-radius: 12px 12px 0 0;
    display: flex;
    align-items: center;
    gap: 0.75rem;
    color: white;
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.2);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
}

.sponsor-tier-header i {
    font-size: 1.5rem;
}

.sponsor-tier-header h5 {
    margin: 0;
    font-weight: 700;
}

.sponsor-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1rem;
    padding: 1rem;
    background: white;
    border-radius: 0 0 12px 12px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
}

.sponsor-card {
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: 1.25rem;
    background: white;
    border: 3px solid;
    border-radius: 16px;
    text-decoration: none;
    color: inherit;
    transition: all 0.3s ease;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
}

.sponsor-card:hover {
    transform: translateY(-5px) scale(1.02);
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.2);
}

.sponsor-logo {
    width: 80px;
    height: 80px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 0.75rem;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
}

.sponsor-emoji {
    font-size: 2.5rem;
}

.sponsor-name {
    font-weight: 600;
    color: #2c3e50;
    text-align: center;
    margin-bottom: 0.5rem;
    font-size: 0.95rem;
}

.sponsor-badge {
    padding: 0.25rem 0.75rem;
    border-radius: 20px;
    font-size: 0.7rem;
    font-weight: 700;
    color: white;
    text-shadow: 0 1px 2px rgba(0, 0, 0, 0.2);
}

.sponsor-detail-header {
    background: white;
    border-radius: 16px;
    padding: 2rem;
    text-align: center;
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.1);
    margin-bottom: 1.5rem;
}

.sponsor-detail-logo {
    font-size: 5rem;
    margin-bottom: 1rem;
}

.sponsor-detail-name {
    font-weight: 700;
    color: #2c3e50;
    margin-bottom: 0.5rem;
}

.sponsor-detail-date {
    color: #6c757d;
    margin: 0;
}

.sponsor-sessions {
    margin-top: 1.5rem;
}

.sponsor-session-card {
    background: white;
    border-radius: 16px;
    padding: 1.5rem;
    margin-bottom: 1rem;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
}

.sponsor-session-time {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    color: #5B9BD5;
    font-weight: 600;
    margin-bottom: 0.75rem;
}

.sponsor-session-title {
    font-weight: 700;
    color: #2c3e50;
    margin-bottom: 1rem;
}

.sponsor-session-location {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    margin-bottom: 1rem;
}

.location-badge {
    background: #5B9BD5;
    color: white;
    padding: 0.25rem 0.75rem;
    border-radius: 6px;
    font-size: 0.85rem;
    font-weight: 600;
}

.location-name {
    color: #2c3e50;
    font-weight: 600;
}

.sponsor-session-logo {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding-top: 1rem;
    border-top: 1px solid #e9ecef;
}

.sponsor-session-logo span {
    font-weight: 600;
    color: #6c757d;
}

.booth-map-container {
    position: relative;
    width: 100%;
    height: 60vh;
    overflow: auto;
    background: rgba(248, 249, 250, 0.9);
    border-bottom: 2px solid #e9ecef;
}

.booth-map-image {
    width: 100%;
    height: auto;
    display: block;
    transition: transform 0.3s ease;
    cursor: grab;
}

.booth-map-image:active {
    cursor: grabbing;
}

.booth-map-controls {
    position: absolute;
    bottom: 1rem;
    right: 1rem;
    display: flex;
    gap: 0.5rem;
    z-index: 10;
}

.booth-map-controls .btn {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.2);
}

.booth-companies-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 0.75rem;
}

.booth-company-item {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.75rem;
    background: rgba(255, 255, 255, 0.95);
    border-radius: 8px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.15);
    font-size: 0.9rem;
}

.booth-company-item i {
    font-size: 1.2rem;
}

.notification-stats {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1rem;
    margin-bottom: 1.5rem;
}

.stat-card {
    background: white;
    border-radius: 12px;
    padding: 1.25rem;
    display: flex;
    align-items: center;
    gap: 1rem;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
}

.stat-card i {
    font-size: 2rem;
    color: #5B9BD5;
}

.stat-number {
    font-size: 1.75rem;
    font-weight: 700;
    color: #2c3e50;
}

.stat-label {
    color: #6c757d;
    font-size: 0.9rem;
}

.notification-card {
    display: flex;
    gap: 1rem;
    padding: 1rem;
    background: white;
    border-radius: 12px;
    margin-bottom: 0.75rem;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
    cursor: pointer;
    transition: all 0.2s ease;
    position: relative;
}

.notification-card:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
}

.notification-card.unread {
    background: #fff8e1;
    border-left: 4px solid #5B9BD5;
}

.notification-icon {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.notification-icon.session {
    background: #e3f2fd;
    color: #1976d2;
}

.notification-icon.update {
    background: #fff3e0;
    color: #f57c00;
}

.notification-icon.info {
    background: #e8f5e9;
    color: #388e3c;
}

.notification-icon.sponsor {
    background: #fce4ec;
    color: #c2185b;
}

.notification-content {
    flex: 1;
}

.notification-title {
    font-weight: 600;
    color: #2c3e50;
    margin-bottom: 0.25rem;
}

.notification-message {
    color: #6c757d;
    font-size: 0.9rem;
    margin-bottom: 0.5rem;
}

.notification-time {
    color: #adb5bd;
    font-size: 0.8rem;
}

.notification-badge {
    width: 10px;
    height: 10px;
    background: #5B9BD5;
    border-radius: 50%;
    position: absolute;
    top: 1rem;
    right: 1rem;
}

.auth-tabs {
    display: flex;
    gap: 0.5rem;
    border-bottom: 2px solid #e9ecef;
}

.auth-tab {
    flex: 1;
    padding: 0.75rem;
    border: none;
    background: none;
    color: #6c757d;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s ease;
    border-bottom: 3px solid transparent;
}

.auth-tab:hover {
    color: #5B9BD5;
}

.auth-tab.active {
    color: #5B9BD5;
    border-bottom-color: #5B9BD5;
}

.auth-form-content {
    animation: fadeIn 0.3s ease;
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(-10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.auth-info-card {
    background: rgba(255, 255, 255, 0.95);
    border-radius: 12px;
    padding: 1.5rem;
    margin-bottom: 1rem;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.2);
}

.auth-info-header {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-bottom: 1rem;
    padding-bottom: 1rem;
    border-bottom: 2px solid #e9ecef;
}

.auth-info-icon {
    width: 60px;
    height: 60px;
    border-radius: 50%;
    background: linear-gradient(135deg, #5B9BD5 0%, #ffa726 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 1.75rem;
}

.auth-info-title {
    flex: 1;
}

.auth-info-title h4 {
    color: #2c3e50;
    margin-bottom: 0.25rem;
}

.auth-info-title p {
    color: #6c757d;
    margin: 0;
    font-size: 0.9rem;
}

.auth-info-row {
    display: flex;
    justify-content: space-between;
    padding: 0.75rem 0;
    border-bottom: 1px solid #f1f3f5;
}

.auth-info-row:last-child {
    border-bottom: none;
}

.auth-info-label {
    color: #6c757d;
    font-weight: 600;
}

.auth-info-value {
    color: #2c3e50;
    font-weight: 600;
}

.qr-code-container {
    text-align: center;
    padding: 2rem;
    background: rgba(255, 255, 255, 0.9);
    border-radius: 12px;
    margin: 1rem 0;
}

.qr-code-placeholder {
    width: 200px;
    height: 200px;
    margin: 0 auto;
    background: white;
    border: 2px solid #e9ecef;
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 4rem;
}

.bottom-sheet-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.5);
    z-index: 1040;
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s ease;
}

.bottom-sheet-overlay.active {
    opacity: 1;
    visibility: visible;
}

.bottom-sheet {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    background: white;
    border-radius: 24px 24px 0 0;
    z-index: 1050;
    max-height: 85vh;
    transform: translateY(100%);
    transition: transform 0.3s ease;
    box-shadow: 0 -4px 20px rgba(0, 0, 0, 0.15);
    padding-bottom: var(--safe-bottom);
    padding-left: var(--safe-left);
    padding-right: var(--safe-right);
}

.bottom-sheet.active {
    transform: translateY(0);
}

.bottom-sheet-handle {
    width: 40px;
    height: 4px;
    background: #dee2e6;
    border-radius: 2px;
    margin: 12px auto 8px;
}

.bottom-sheet-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 1.5rem 1rem;
    border-bottom: 1px solid #e9ecef;
}

.bottom-sheet-header h5 {
    margin: 0;
    color: #2c3e50;
    font-weight: 700;
}

.bottom-sheet-header .btn-close {
    padding: 0;
    margin: 0;
}

.bottom-sheet-body {
    padding: 1.5rem;
    max-height: calc(85vh - 80px);
    overflow-y: auto;
}

@media (max-width: 576px) {
    .bottom-sheet {
        max-height: 90vh;
    }
    
    .bottom-sheet-body {
        max-height: calc(90vh - 80px);
    }
}

.cafe-banner {
    background: linear-gradient(135deg, #6f4e37 0%, #8b6f47 100%);
    color: white;
    text-align: center;
    padding: 2rem;
    border-radius: 16px;
    margin-bottom: 1.5rem;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
}

.cafe-logo {
    width: 80px;
    height: 80px;
    background: rgba(255, 255, 255, 0.2);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1rem;
    font-size: 2.5rem;
}

.cafe-banner h3 {
    margin-bottom: 0.5rem;
    font-weight: 700;
}

.cafe-banner p {
    margin: 0;
    opacity: 0.9;
}

.menu-category {
    margin-bottom: 1.5rem;
}

.menu-category-title {
    color: #5B9BD5;
    font-weight: 700;
    margin-bottom: 0.75rem;
    padding-bottom: 0.5rem;
    border-bottom: 2px solid #5B9BD5;
}

.menu-item-card {
    display: flex;
    align-items: center;
    justify-content: space-between;
    background: white;
    border-radius: 12px;
    padding: 1rem;
    margin-bottom: 0.5rem;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

.menu-item-info {
    flex: 1;
}

.menu-item-name {
    font-weight: 600;
    color: #2c3e50;
    margin-bottom: 0.25rem;
}

.menu-item-desc {
    color: #6c757d;
    font-size: 0.85rem;
}

.menu-item-icon {
    font-size: 2rem;
    margin-left: 1rem;
}

.transfer-route-card {
    background: white;
    border-radius: 12px;
    padding: 1.25rem;
    margin-bottom: 1rem;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
}

.transfer-route-header {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-bottom: 1rem;
    padding-bottom: 1rem;
    border-bottom: 1px solid #e9ecef;
}

.transfer-route-icon {
    width: 50px;
    height: 50px;
    background: linear-gradient(135deg, #2196f3 0%, #64b5f6 100%);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 1.5rem;
    flex-shrink: 0;
}

.transfer-route-header h6 {
    margin-bottom: 0.25rem;
    color: #2c3e50;
    font-weight: 700;
}

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

.transfer-time-slot {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    color: #6c757d;
    font-size: 0.9rem;
}

.transfer-time-slot i {
    color: #5B9BD5;
}

.pdf-viewer-container {
    background: white;
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
}

.pdf-viewer-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 1rem;
    background: #f8f9fa;
    border-bottom: 1px solid #e9ecef;
}

.pdf-viewer-header h6 {
    color: #2c3e50;
    font-weight: 600;
}

.pdf-viewer {
    width: 100%;
    height: 600px;
    background: #f8f9fa;
}

.pdf-viewer iframe {
    width: 100%;
    height: 100%;
    border: none;
}

.gallery-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 0.75rem;
}

.gallery-item {
    position: relative;
    aspect-ratio: 1;
    border-radius: 12px;
    overflow: hidden;
    cursor: pointer;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
}

.gallery-item img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.3s ease;
}

.gallery-item:hover img {
    transform: scale(1.05);
}

.gallery-item-overlay {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    background: linear-gradient(to top, rgba(0, 0, 0, 0.7), transparent);
    padding: 0.75rem;
    color: white;
}

.gallery-item-title {
    font-size: 0.9rem;
    font-weight: 600;
    margin: 0;
}

.gallery-item-date {
    font-size: 0.75rem;
    opacity: 0.9;
}

.gallery-lightbox {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.95);
    z-index: 2000;
    display: none;
    align-items: center;
    justify-content: center;
}

.gallery-lightbox.active {
    display: flex;
}

.gallery-lightbox-content {
    max-width: 90%;
    max-height: 90%;
    position: relative;
}

.gallery-lightbox-content img {
    max-width: 100%;
    max-height: 90vh;
    border-radius: 8px;
}

.gallery-lightbox-close {
    position: absolute;
    top: 1rem;
    right: 1rem;
    width: 40px;
    height: 40px;
    background: rgba(255, 255, 255, 0.2);
    border: none;
    border-radius: 50%;
    color: white;
    font-size: 1.5rem;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
}

.gallery-lightbox-nav {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    width: 40px;
    height: 40px;
    background: rgba(255, 255, 255, 0.2);
    border: none;
    border-radius: 50%;
    color: white;
    font-size: 1.5rem;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
}

.gallery-lightbox-nav.prev {
    left: 1rem;
}

.gallery-lightbox-nav.next {
    right: 1rem;
}

.btn-primary-custom {
    background: linear-gradient(135deg, #5B9BD5 0%, #4A8BC2 100%);
    border: none;
    color: white;
    font-weight: 600;
    transition: all 0.3s ease;
}

.btn-primary-custom:hover {
    background: linear-gradient(135deg, #4A8BC2 0%, #3A7AB0 100%);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(91, 155, 213, 0.4);
    color: white;
}

.btn-primary-custom:active {
    transform: translateY(0);
}

.map-container {
    margin-top: 1rem;
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
}

.auth-info-row {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    padding: 0.75rem 0;
    border-bottom: 1px solid #f1f3f5;
}

.auth-info-row:last-child {
    border-bottom: none;
}

.committee-member-card {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    padding: 1.5rem;
    background: rgba(255, 255, 255, 0.95);
    border-radius: 16px;
    margin-bottom: 1.5rem;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.2);
    transition: all 0.3s ease;
}

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

.committee-member-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.15);
}

.committee-member-avatar {
    width: 120px;
    height: auto;
    border-radius: 50%;
    overflow: hidden;
    margin-bottom: 1rem;
    border: 4px solid #5B9BD5;
    box-shadow: 0 4px 12px rgba(91, 155, 213, 0.3);
}

.committee-member-avatar img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.committee-member-info {
    width: 100%;
}

.committee-member-name {
    font-weight: 700;
    color: #2c3e50;
    margin-bottom: 0.5rem;
    font-size: 1.1rem;
}

.committee-member-title {
    color: #5B9BD5;
    font-size: 0.95rem;
    font-weight: 500;
}

.invitation-text {
    line-height: 1.8;
    color: #2c3e50;
}

.invitation-text p {
    margin-bottom: 1.25rem;
    text-align: justify;
}

.invitation-text p:last-child {
    margin-bottom: 0;
}

.invitation-text strong {
    color: #5B9BD5;
}

.invitation-text em {
    color: #6c757d;
}

.program-day-card {
    background: rgba(255, 255, 255, 0.95);
    border-radius: 16px;
    overflow: hidden;
    margin-bottom: 1.5rem;
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.2);
}

.program-day-header {
    background: linear-gradient(135deg, #5B9BD5 0%, #4A8BC2 100%);
    color: white;
    padding: 1.25rem;
    display: flex;
    align-items: center;
    gap: 0.75rem;
    font-size: 1.2rem;
    font-weight: 700;
}

.program-day-header i {
    font-size: 1.5rem;
}

.program-sessions {
    padding: 1rem;
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.program-session-card {
    position: relative;
    background: #ffffff;
    border-radius: 12px;
    padding: 1rem 1rem 1rem 3.75rem;
    box-shadow: 0 1px 4px rgba(0, 0, 0, 0.06);
    transition: all 0.2s ease;
    border-left: 3px solid #5B9BD5;
}

.program-session-card:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
}

.program-session-card.special {
    background: linear-gradient(135deg, #f8f9fa 0%, #ffffff 100%);
    border-left-color: #26A69A;
}

.program-session-card.special .program-session-number {
    background: linear-gradient(135deg, #26A69A 0%, #00897B 100%);
}

.program-session-number {
    position: absolute;
    left: 0.9rem;
    top: 50%;
    transform: translateY(-50%);
    width: 34px;
    height: 34px;
    background: #5B9BD5;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-weight: 700;
    font-size: 0.95rem;
    box-shadow: none;
}

.program-time {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    color: #5B9BD5;
    font-weight: 700;
    font-size: 1rem;
    margin-bottom: 0.75rem;
}

.program-time i {
    font-size: 1.1rem;
}

.program-title {
    color: #2c3e50;
    font-weight: 700;
    font-size: 1.1rem;
    margin-bottom: 0.75rem;
    line-height: 1.4;
}

.program-subtitle {
    font-size: 0.85rem;
    color: #5B9BD5;
    font-weight: 500;
    margin-top: 2px;
    margin-bottom: 0.5rem;
    line-height: 1.4;
}

.program-speaker {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    color: #6c757d;
    font-size: 0.95rem;
    margin-bottom: 0.5rem;
}

.program-speaker i {
    font-size: 1.1rem;
    color: #5B9BD5;
}

.program-location {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    color: #6c757d;
    font-size: 0.9rem;
}

.program-location i {
    font-size: 1rem;
    color: #5B9BD5;
}

.program-moderator {
    background: linear-gradient(135deg, rgba(91,155,213,0.12) 0%, rgba(74,139,194,0.18) 100%);
    border-left: 4px solid #5B9BD5;
    border-radius: 8px;
    padding: 0.75rem 1rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    color: #2c5f8a;
    font-weight: 600;
    font-size: 0.95rem;
    margin-bottom: 0.5rem;
}

.program-moderator i {
    font-size: 1.2rem;
}

.program-moderator-inline {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    background: linear-gradient(135deg, rgba(91,155,213,0.12) 0%, rgba(74,139,194,0.18) 100%);
    border-radius: 6px;
    padding: 0.5rem 0.75rem;
    color: #2c5f8a;
    font-weight: 600;
    font-size: 0.85rem;
    margin-top: 0.5rem;
}

.program-moderator-inline i {
    font-size: 1rem;
}

.date-filter {
    padding: 0.75rem 0;
    padding-left: var(--safe-left);
    padding-right: var(--safe-right);
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    z-index: 999;
    background: rgba(0, 27, 59, 0.95) !important;
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
}

.date-scroll {
    display: flex;
    gap: 0.75rem;
    overflow-x: auto;
    padding: 0.25rem 1rem;
    scrollbar-width: none;
}

.date-scroll::-webkit-scrollbar {
    display: none;
}

.date-btn {
    min-width: 120px;
    padding: 0.75rem 1.5rem;
    border: 2px solid rgba(255, 255, 255, 0.3);
    background: rgba(255, 255, 255, 0.1);
    border-radius: 12px;
    font-weight: 600;
    color: white;
    transition: all 0.3s ease;
    flex-shrink: 0;
    font-size: 1rem;
}

.date-btn:hover {
    border-color: white;
    background: rgba(255, 255, 255, 0.2);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.2);
}

.date-btn.active {
    background: white;
    border-color: white;
    color: #5B9BD5;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.3);
}

.program-day-card.education-salon {
    border: none;
    border-left: 3px solid #26A69A;
}

.program-day-header.education {
    background: linear-gradient(135deg, #26A69A 0%, #00897B 100%);
}

.education-instructor {
    background: linear-gradient(135deg, #e0f2f1 0%, #b2dfdb 100%);
    padding: 1rem;
    display: flex;
    align-items: center;
    gap: 0.75rem;
    color: #00695C;
    font-weight: 600;
    border-bottom: 1px solid #80CBC4;
}

.education-instructor i {
    font-size: 1.5rem;
}

.program-session-number.education {
    background: linear-gradient(135deg, #26A69A 0%, #00897B 100%);
}

.program-day {
    display: none;
}

.program-day.active {
    display: block;
}

/* Pull-to-refresh (BoxFactura) – tema uyumu */
.ptr--ptr {
    background: rgba(0, 27, 59, 0.95) !important;
    color: rgba(255, 255, 255, 0.9) !important;
}
.ptr--box {
    padding-top: var(--safe-top) !important;
}
.ptr--text,
.ptr--icon {
    color: rgba(255, 255, 255, 0.9) !important;
}
.ptr--icon {
    border-bottom-color: rgba(255, 255, 255, 0.5) !important;
}

.announcement-card {
    background: #ffffff;
    border-radius: 12px;
    padding: 1rem 1.25rem;
    border-left: 3px solid #5B9BD5;
    box-shadow: 0 1px 4px rgba(0, 0, 0, 0.06);
}

.announcement-header {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    color: #5B9BD5;
    font-size: 0.8rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
}

.announcement-date {
    color: #6c757d;
    font-weight: 400;
}

.announcement-title {
    color: #2c3e50;
    font-weight: 700;
    font-size: 1rem;
    line-height: 1.4;
}

.announcement-body {
    color: #6c757d;
    font-size: 0.9rem;
    margin-top: 0.4rem;
    line-height: 1.5;
}