/* ===========================================
   The Core — Events Page Styles
   Brand Colors:
     Black:  #070707
     Pink:   #ea246b
     Green:  #00a880
     Blue:   #1772dc
     White:  #fafafa
   =========================================== */

:root {
    --core-black: #070707;
    --core-pink: #ea246b;
    --core-green: #00a880;
    --core-blue: #1772dc;
    --core-white: #fafafa;
    --core-dark: #111111;
    --core-card: #1a1a1a;
    --core-border: #2a2a2a;
    --core-muted: #888888;
}

/* ===========================================
   Base
   =========================================== */

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
    scroll-padding-top: 80px;
}

body {
    font-family: 'Inter', sans-serif;
    background-color: var(--core-black);
    color: var(--core-white);
    line-height: 1.6;
    overflow-x: hidden;
}

a {
    color: var(--core-blue);
    text-decoration: none;
    transition: color 0.3s ease;
}

a:hover {
    color: var(--core-pink);
}

img {
    max-width: 100%;
    height: auto;
}

/* ===========================================
   Navbar
   =========================================== */

.navbar {
    background-color: rgba(7, 7, 7, 0.95);
    backdrop-filter: blur(12px);
    padding: 1rem 0;
    border-bottom: 1px solid var(--core-border);
    transition: all 0.3s ease;
    z-index: 1050;
}

.navbar-brand img {
    height: 40px;
    width: auto;
    display: block;
    transition: opacity 0.3s ease;
}

.navbar-brand img:hover {
    opacity: 0.8;
}

.navbar-nav .nav-link {
    color: var(--core-white);
    font-weight: 500;
    font-size: 0.9rem;
    letter-spacing: 0.02em;
    padding: 0.5rem 1rem;
    position: relative;
    transition: color 0.3s ease;
}

.navbar-nav .nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    width: 0;
    height: 2px;
    background: var(--core-pink);
    transition: all 0.3s ease;
    transform: translateX(-50%);
}

.navbar-nav .nav-link:hover {
    color: var(--core-pink);
}

.navbar-nav .nav-link:hover::after {
    width: 60%;
}

.navbar-toggler {
    border-color: var(--core-border);
}

/* ===========================================
   Hero Section
   =========================================== */

.hero-section {
    position: relative;
    min-height: auto;
    padding: 8rem 0 5rem;
    background-color: var(--core-black);
    display: flex;
    align-items: center;
    overflow: hidden;
}

.hero-overlay {
    position: absolute;
    inset: 0;
    background: radial-gradient(ellipse at 70% 50%, rgba(23, 114, 220, 0.08) 0%, transparent 60%),
                radial-gradient(ellipse at 30% 30%, rgba(234, 36, 107, 0.06) 0%, transparent 50%);
    z-index: 1;
}

.hero-pattern {
    position: absolute;
    bottom: -2px;
    left: 0;
    right: 0;
    height: 80px;
    background: linear-gradient(to top, var(--core-black), transparent);
    z-index: 2;
}

.hero-content {
    position: relative;
    z-index: 3;
}

.hero-dots {
    display: flex;
    gap: 12px;
    margin-bottom: 2rem;
}

.dot {
    width: 14px;
    height: 14px;
    border-radius: 50%;
    display: inline-block;
    animation: dotPulse 2s ease-in-out infinite;
}

.dot-pink { background-color: var(--core-pink); animation-delay: 0s; }
.dot-green { background-color: var(--core-green); animation-delay: 0.3s; }
.dot-white { background-color: var(--core-white); animation-delay: 0.6s; }
.dot-blue { background-color: var(--core-blue); animation-delay: 0.9s; }

@keyframes dotPulse {
    0%, 100% { opacity: 1; transform: scale(1); }
    50% { opacity: 0.5; transform: scale(0.85); }
}

.hero-title {
    font-size: clamp(2.5rem, 6vw, 4.5rem);
    font-weight: 700;
    line-height: 1.1;
    margin-bottom: 1.25rem;
    letter-spacing: -0.02em;
}

.hero-subtitle {
    font-size: 1.15rem;
    color: var(--core-muted);
    max-width: 520px;
    margin-bottom: 1.5rem;
    line-height: 1.7;
}

/* Hero Stats */
.hero-stats {
    display: flex;
    gap: 2.5rem;
    margin-bottom: 2rem;
}

.hero-stat {
    display: flex;
    flex-direction: column;
}

.hero-stat-number {
    font-size: 2rem;
    font-weight: 700;
    color: var(--core-white);
    line-height: 1;
}

.hero-stat-label {
    font-size: 0.8rem;
    color: var(--core-muted);
    margin-top: 4px;
}

/* Hero Featured Event Card */
.hero-featured-card {
    background-color: var(--core-card);
    border: 1px solid var(--core-border);
    border-radius: 16px;
    overflow: hidden;
    transition: all 0.3s ease;
    cursor: pointer;
}

.hero-featured-card:hover {
    border-color: rgba(234, 36, 107, 0.3);
    transform: translateY(-4px);
    box-shadow: 0 16px 48px rgba(0, 0, 0, 0.4);
}

.hero-featured-card:empty {
    display: none;
}

.hero-featured-img {
    width: 100%;
    height: 200px;
    object-fit: cover;
    background-color: var(--core-border);
}

.hero-featured-body {
    padding: 1.25rem 1.5rem;
}

.hero-featured-tag {
    font-size: 0.7rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--core-pink);
    margin-bottom: 0.5rem;
    display: block;
}

.hero-featured-title {
    font-size: 1.15rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
    line-height: 1.3;
}

.hero-featured-meta {
    font-size: 0.8rem;
    color: var(--core-muted);
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 0.75rem;
}

.hero-featured-meta i {
    color: var(--core-green);
}

.hero-featured-cta {
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--core-pink);
    display: inline-flex;
    align-items: center;
    gap: 4px;
}

/* ===========================================
   Buttons
   =========================================== */

.btn-core-pink {
    background-color: var(--core-pink);
    color: var(--core-white);
    border: none;
    padding: 0.75rem 2rem;
    font-weight: 600;
    font-size: 0.95rem;
    border-radius: 8px;
    transition: all 0.3s ease;
    letter-spacing: 0.01em;
}

.btn-core-pink:hover {
    background-color: #c91d5b;
    color: var(--core-white);
    transform: translateY(-2px);
    box-shadow: 0 8px 24px rgba(234, 36, 107, 0.3);
}

.btn-core-pink:active {
    transform: translateY(0);
}

.btn-core-outline {
    background-color: transparent;
    color: var(--core-white);
    border: 1.5px solid var(--core-border);
    padding: 0.6rem 1.5rem;
    font-weight: 500;
    font-size: 0.9rem;
    border-radius: 8px;
    transition: all 0.3s ease;
}

.btn-core-outline:hover {
    border-color: var(--core-pink);
    color: var(--core-pink);
}

.btn-core-green {
    background-color: var(--core-green);
    color: var(--core-white);
    border: none;
    padding: 0.6rem 1.5rem;
    font-weight: 600;
    font-size: 0.9rem;
    border-radius: 8px;
    transition: all 0.3s ease;
}

.btn-core-green:hover {
    background-color: #008f6d;
    color: var(--core-white);
    transform: translateY(-2px);
    box-shadow: 0 8px 24px rgba(0, 168, 128, 0.3);
}

/* ===========================================
   Sections
   =========================================== */

.section-padding {
    padding: 6rem 0;
}

.section-alt {
    background-color: var(--core-dark);
}

.section-header {
    margin-bottom: 3rem;
}

.section-tag {
    display: inline-block;
    font-size: 0.8rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--core-pink);
    margin-bottom: 0.5rem;
}

.section-title {
    font-size: 2.25rem;
    font-weight: 700;
    letter-spacing: -0.01em;
}

/* ===========================================
   Event Cards
   =========================================== */

.event-card {
    background-color: var(--core-card);
    border: 1px solid var(--core-border);
    border-radius: 12px;
    overflow: hidden;
    transition: all 0.3s ease;
    height: 100%;
    display: flex;
    flex-direction: column;
}

.event-card:hover {
    transform: translateY(-4px);
    border-color: rgba(234, 36, 107, 0.3);
    box-shadow: 0 12px 40px rgba(0, 0, 0, 0.4);
}

.event-card-img {
    width: 100%;
    height: 220px;
    object-fit: cover;
    background-color: var(--core-border);
}

.event-card-body {
    padding: 1.5rem;
    flex: 1;
    display: flex;
    flex-direction: column;
}

.event-card-date {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    font-size: 0.8rem;
    font-weight: 600;
    color: var(--core-green);
    margin-bottom: 0.75rem;
}

.event-card-title {
    font-size: 1.2rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
    line-height: 1.3;
}

.event-card-location {
    font-size: 0.85rem;
    color: var(--core-muted);
    margin-bottom: 0.75rem;
    display: flex;
    align-items: center;
    gap: 6px;
}

.event-card-desc {
    font-size: 0.9rem;
    color: var(--core-muted);
    line-height: 1.6;
    margin-bottom: 1.25rem;
    flex: 1;
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.event-card-footer {
    padding: 0 1.5rem 1.5rem;
}

.btn-register-closed {
    background-color: var(--core-border);
    color: var(--core-muted);
    border: none;
    padding: 0.6rem 1.5rem;
    font-weight: 500;
    font-size: 0.9rem;
    border-radius: 8px;
    cursor: not-allowed;
    width: 100%;
}

/* ===========================================
   Past Events — Video & Gallery
   =========================================== */

.video-wrapper {
    position: relative;
    padding-bottom: 56.25%;
    height: 0;
    overflow: hidden;
    border-radius: 12px 12px 0 0;
    background-color: var(--core-border);
}

.video-wrapper iframe {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    border: none;
}

.gallery-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(100px, 1fr));
    gap: 6px;
    padding: 1rem 1.5rem;
}

.gallery-thumb {
    aspect-ratio: 1;
    object-fit: cover;
    border-radius: 6px;
    cursor: pointer;
    transition: all 0.3s ease;
    background-color: var(--core-border);
    width: 100%;
}

.gallery-thumb:hover {
    opacity: 0.8;
    transform: scale(1.05);
}

/* ===========================================
   Gallery Preview Strip (Past Event Cards)
   =========================================== */

.gallery-preview {
    display: flex;
    gap: 4px;
    padding: 0 1.5rem 1rem;
    overflow: hidden;
}

.gallery-preview-thumb {
    width: 56px;
    height: 56px;
    object-fit: cover;
    border-radius: 6px;
    background-color: var(--core-border);
    flex-shrink: 0;
}

.gallery-preview-more {
    width: 56px;
    height: 56px;
    border-radius: 6px;
    background-color: var(--core-border);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.8rem;
    font-weight: 600;
    color: var(--core-muted);
    flex-shrink: 0;
}

/* ===========================================
   Image Error Fallback
   =========================================== */

.event-card-img[src=""],
.event-card-img:not([src]) {
    background-color: var(--core-card);
}

/* ===========================================
   Gallery Lightbox
   =========================================== */

#galleryModal .modal-content {
    background: transparent;
}

#galleryModal .modal-header {
    position: absolute;
    top: 0;
    right: 0;
    z-index: 10;
    padding: 1rem;
}

#galleryModal .carousel-item img {
    max-height: 80vh;
    width: auto;
    max-width: 100%;
    margin: 0 auto;
    display: block;
    object-fit: contain;
    border-radius: 8px;
}

/* ===========================================
   Forms
   =========================================== */

.core-form .form-label {
    font-size: 0.85rem;
    font-weight: 500;
    color: var(--core-muted);
    margin-bottom: 0.4rem;
}

.core-form .form-control {
    background-color: var(--core-card);
    border: 1px solid var(--core-border);
    color: var(--core-white);
    border-radius: 8px;
    padding: 0.75rem 1rem;
    font-size: 0.9rem;
    transition: border-color 0.3s ease, box-shadow 0.3s ease;
}

.core-form .form-control:focus {
    background-color: var(--core-card);
    border-color: var(--core-pink);
    color: var(--core-white);
    box-shadow: 0 0 0 3px rgba(234, 36, 107, 0.15);
}

.core-form .form-control::placeholder {
    color: #555;
}

.core-form .form-control.is-invalid {
    border-color: var(--core-pink);
}

/* ===========================================
   Modal
   =========================================== */

.modal-content {
    background-color: var(--core-dark);
    border: 1px solid var(--core-border);
    border-radius: 12px;
    color: var(--core-white);
}

.modal-header {
    border-bottom: 1px solid var(--core-border);
    padding: 1.25rem 1.5rem;
}

.modal-title {
    font-weight: 600;
}

.modal-body {
    padding: 1.5rem;
}

/* ===========================================
   Footer
   =========================================== */

.site-footer {
    background-color: var(--core-dark);
    border-top: 1px solid var(--core-border);
    padding: 3rem 0 2rem;
    position: relative;
    overflow: hidden;
}

.footer-pattern {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    opacity: 0.08;
    overflow: hidden;
    height: 40px;
}

.footer-pattern .pattern-img {
    width: 100%;
    min-width: 800px;
    height: auto;
}

.site-footer img[alt="The Core"] {
    max-width: 160px;
    height: auto;
}

.footer-links {
    display: flex;
    gap: 1.5rem;
    justify-content: flex-end;
}

.footer-links a {
    color: var(--core-muted);
    font-size: 0.9rem;
    font-weight: 500;
    transition: color 0.3s ease;
}

.footer-links a:hover {
    color: var(--core-white);
}

/* ===========================================
   Event Card — Format Badge & Speakers
   =========================================== */

.event-card-meta {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-bottom: 0.75rem;
    flex-wrap: wrap;
}

.format-badge {
    font-size: 0.7rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    padding: 3px 10px;
    border-radius: 20px;
    display: inline-block;
}

.format-badge-webinar { background-color: var(--core-pink); color: var(--core-white); }
.format-badge-in-person { background-color: var(--core-green); color: var(--core-white); }
.format-badge-hybrid { background-color: var(--core-blue); color: var(--core-white); }

.event-card-speakers {
    font-size: 0.8rem;
    color: var(--core-muted);
    margin-bottom: 0.5rem;
}

.event-card-speakers i {
    color: var(--core-blue);
    margin-right: 4px;
}

/* ===========================================
   Event Card — Clickable
   =========================================== */

.event-card-link {
    cursor: pointer;
}

.event-card-link .event-card-body {
    cursor: pointer;
}

/* ===========================================
   Detail Page
   =========================================== */

.detail-page {
    padding-top: 80px;
}

.detail-back {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    color: var(--core-muted);
    font-size: 0.9rem;
    font-weight: 500;
    padding: 1.25rem 0;
    transition: color 0.3s ease;
    cursor: pointer;
    background: none;
    border: none;
}

.detail-back:hover {
    color: var(--core-white);
}

.detail-hero {
    width: 100%;
    max-height: 420px;
    object-fit: cover;
    border-radius: 12px;
    margin-bottom: 2rem;
    background-color: var(--core-border);
}

.detail-header {
    margin-bottom: 2rem;
}

.detail-title {
    font-size: 2.5rem;
    font-weight: 700;
    line-height: 1.15;
    margin-bottom: 1rem;
    letter-spacing: -0.02em;
}

.detail-meta {
    display: flex;
    flex-wrap: wrap;
    gap: 1.25rem;
    margin-bottom: 1.5rem;
}

.detail-meta-item {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 0.9rem;
    color: var(--core-muted);
}

.detail-meta-item i {
    font-size: 1rem;
    color: var(--core-green);
}

.detail-description {
    font-size: 1rem;
    line-height: 1.8;
    color: var(--core-muted);
    margin-bottom: 2.5rem;
    white-space: pre-line;
}

/* ===========================================
   Detail Page — Speakers
   =========================================== */

.speakers-section {
    margin-bottom: 3rem;
}

.speakers-section h3 {
    font-size: 1.5rem;
    font-weight: 600;
    margin-bottom: 1.5rem;
}

.speaker-card {
    background-color: var(--core-card);
    border: 1px solid var(--core-border);
    border-radius: 12px;
    padding: 1.5rem;
    text-align: center;
    transition: border-color 0.3s ease;
}

.speaker-card:hover {
    border-color: rgba(23, 114, 220, 0.3);
}

.speaker-photo {
    width: 100px;
    height: 100px;
    border-radius: 50%;
    object-fit: cover;
    margin-bottom: 1rem;
    background-color: var(--core-border);
}

.speaker-name {
    font-size: 1rem;
    font-weight: 600;
    margin-bottom: 0.25rem;
}

.speaker-designation {
    font-size: 0.8rem;
    color: var(--core-muted);
}

/* ===========================================
   Detail Page — Agenda
   =========================================== */

.agenda-section {
    margin-bottom: 3rem;
}

.agenda-section h3 {
    font-size: 1.5rem;
    font-weight: 600;
    margin-bottom: 1.5rem;
}

.agenda-list {
    list-style: none;
    padding: 0;
    position: relative;
}

.agenda-list::before {
    content: '';
    position: absolute;
    left: 7px;
    top: 8px;
    bottom: 8px;
    width: 2px;
    background-color: var(--core-border);
}

.agenda-item {
    display: flex;
    align-items: flex-start;
    gap: 1rem;
    padding: 0.75rem 0;
    position: relative;
}

.agenda-dot {
    width: 16px;
    height: 16px;
    min-width: 16px;
    border-radius: 50%;
    background-color: var(--core-pink);
    margin-top: 3px;
    position: relative;
    z-index: 1;
}

.agenda-time {
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--core-green);
    min-width: 80px;
}

.agenda-title {
    font-size: 0.95rem;
    color: var(--core-white);
}

/* ===========================================
   Detail Page — Share Buttons
   =========================================== */

.share-section {
    margin-bottom: 2.5rem;
}

.share-section h4 {
    font-size: 0.85rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--core-muted);
    margin-bottom: 0.75rem;
}

.share-buttons {
    display: flex;
    gap: 0.5rem;
}

.share-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    border-radius: 8px;
    border: 1px solid var(--core-border);
    background: var(--core-card);
    color: var(--core-white);
    font-size: 1.1rem;
    transition: all 0.3s ease;
    cursor: pointer;
    text-decoration: none;
}

.share-btn:hover {
    border-color: var(--core-pink);
    color: var(--core-pink);
    transform: translateY(-2px);
}

/* ===========================================
   Detail Page — Inline Registration
   =========================================== */

.detail-registration {
    background-color: var(--core-card);
    border: 1px solid var(--core-border);
    border-radius: 12px;
    padding: 2rem;
    margin-bottom: 3rem;
}

.detail-registration h3 {
    font-size: 1.5rem;
    font-weight: 600;
    margin-bottom: 1.5rem;
}

/* ===========================================
   Detail Page — Video & Gallery
   =========================================== */

.detail-video {
    margin-bottom: 3rem;
}

.detail-video .video-wrapper {
    border-radius: 12px;
}

.detail-gallery {
    margin-bottom: 3rem;
}

.detail-gallery h3 {
    font-size: 1.5rem;
    font-weight: 600;
    margin-bottom: 1.5rem;
}

.detail-gallery .gallery-grid {
    display: flex;
    gap: 10px;
    overflow-x: auto;
    overflow-y: hidden;
    padding: 0 0 10px;
    scroll-behavior: smooth;
    -webkit-overflow-scrolling: touch;
    scrollbar-width: none;
}

.detail-gallery .gallery-grid::-webkit-scrollbar {
    display: none;
}

.detail-gallery .gallery-grid .gallery-thumb {
    width: 180px;
    height: 140px;
    min-width: 180px;
    aspect-ratio: auto;
    border-radius: 8px;
}

.detail-gallery-wrapper {
    position: relative;
}

.gallery-scroll-btn {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    width: 36px;
    height: 36px;
    border-radius: 50%;
    border: 1px solid var(--core-border);
    background: var(--core-card);
    color: var(--core-white);
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    z-index: 5;
    transition: all 0.3s ease;
    font-size: 1rem;
}

.gallery-scroll-btn:hover {
    background: var(--core-pink);
    border-color: var(--core-pink);
}

.gallery-scroll-btn-left {
    left: -18px;
}

.gallery-scroll-btn-right {
    right: -18px;
}

/* ===========================================
   Form Check (consent checkbox)
   =========================================== */

.form-check-input {
    background-color: var(--core-card);
    border-color: var(--core-border);
}

.form-check-input:checked {
    background-color: var(--core-pink);
    border-color: var(--core-pink);
}

.form-check-input:focus {
    box-shadow: 0 0 0 3px rgba(234, 36, 107, 0.15);
    border-color: var(--core-pink);
}

.form-check-label {
    font-size: 0.85rem;
    color: var(--core-muted);
}

/* ===========================================
   Empty & Error States
   =========================================== */

.empty-state {
    text-align: center;
    padding: 4rem 2rem;
}

.empty-state-icon {
    font-size: 3rem;
    color: var(--core-border);
    margin-bottom: 1rem;
}

.empty-state-text {
    color: var(--core-muted);
    font-size: 1rem;
}

.error-state {
    text-align: center;
    padding: 3rem 2rem;
    color: var(--core-pink);
}

/* ===========================================
   Loading
   =========================================== */

.loading-state {
    padding: 4rem 0;
}

/* ===========================================
   Toast overrides
   =========================================== */

.toast {
    border-radius: 8px;
}

/* ===========================================
   Responsive
   =========================================== */

@media (max-width: 991.98px) {
    .navbar-collapse {
        background-color: var(--core-black);
        padding: 1rem;
        border-radius: 8px;
        margin-top: 0.5rem;
        border: 1px solid var(--core-border);
    }

    .section-padding {
        padding: 4rem 0;
    }
}

@media (max-width: 767.98px) {
    .hero-title {
        font-size: 2.25rem;
    }

    .hero-subtitle {
        font-size: 1rem;
    }

    .section-title {
        font-size: 1.75rem;
    }

    .detail-title {
        font-size: 1.75rem;
    }

    .detail-hero {
        max-height: 250px;
        border-radius: 8px;
    }

    .detail-meta {
        flex-direction: column;
        gap: 0.75rem;
    }

    .speaker-photo {
        width: 80px;
        height: 80px;
    }

    .footer-links {
        justify-content: flex-start;
        margin-top: 1rem;
    }

    .gallery-grid {
        grid-template-columns: repeat(auto-fill, minmax(80px, 1fr));
    }

    .detail-gallery .gallery-grid .gallery-thumb {
        width: 140px;
        height: 110px;
        min-width: 140px;
    }

    .gallery-scroll-btn-left { left: -10px; }
    .gallery-scroll-btn-right { right: -10px; }
}