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

/* Romie Trial Font Family */
@font-face {
    font-family: 'Romie';
    src: url('../fonts/RomieTrial-Light.otf') format('opentype');
    font-weight: 300;
    font-style: normal;
}

@font-face {
    font-family: 'Romie';
    src: url('../fonts/RomieTrial-LightItalic.otf') format('opentype');
    font-weight: 300;
    font-style: italic;
}

@font-face {
    font-family: 'Romie';
    src: url('../fonts/RomieTrial-Regular.otf') format('opentype');
    font-weight: 400;
    font-style: normal;
}

@font-face {
    font-family: 'Romie';
    src: url('../fonts/RomieTrial-Italic.otf') format('opentype');
    font-weight: 400;
    font-style: italic;
}

@font-face {
    font-family: 'Romie';
    src: url('../fonts/RomieTrial-Medium.otf') format('opentype');
    font-weight: 500;
    font-style: normal;
}

@font-face {
    font-family: 'Romie';
    src: url('../fonts/RomieTrial-MediumItalic.otf') format('opentype');
    font-weight: 500;
    font-style: italic;
}

@font-face {
    font-family: 'Romie';
    src: url('../fonts/RomieTrial-Bold.otf') format('opentype');
    font-weight: 700;
    font-style: normal;
}

@font-face {
    font-family: 'Romie';
    src: url('../fonts/RomieTrial-BoldItalic.otf') format('opentype');
    font-weight: 700;
    font-style: italic;
}

@font-face {
    font-family: 'Romie';
    src: url('../fonts/RomieTrial-Heavy.otf') format('opentype');
    font-weight: 800;
    font-style: normal;
}

@font-face {
    font-family: 'Romie';
    src: url('../fonts/RomieTrial-HeavyItalic.otf') format('opentype');
    font-weight: 800;
    font-style: italic;
}

@font-face {
    font-family: 'Romie';
    src: url('../fonts/RomieTrial-Black.otf') format('opentype');
    font-weight: 900;
    font-style: normal;
}

@font-face {
    font-family: 'Romie';
    src: url('../fonts/RomieTrial-BlackItalic.otf') format('opentype');
    font-weight: 900;
    font-style: italic;
}

/* ============================================
   Color System - CSS Custom Properties
   ============================================ */
:root {
    /* Primary Colors */
    --blue: #0314fb;
    --dark-blue: #020C97;

    /* Neutral Colors */
    --background-white: #fdfdfe;
    --text-white: #FCFCFD;
    --black: #151109;
    --card-gray: #d4d5dc;

    /* Accent Colors */
    --gold: #d38501;
    --dark-gold: #8C5901;
}

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

h1,
h2,
h3,
h4,
h5,
h6 {
    font-family: 'Romie', sans-serif;
    font-weight: 600 !important;
}

body {
    font-family: 'Poppins', sans-serif;
    background: var(--background-white);
}

/* ============================================
   Header & Navigation
   ============================================ */
header {
    background: transparent;
}

nav ul {
    list-style: none;
}

nav ul li a {
    text-decoration: none;
    color: var(--black);
}

.logo {
    height: 120px !important;
    width: 120px !important;
}

.logo img {
    height: 100%;
    width: 100%;
    object-fit: contain;
}

/* ============================================
   Navigation Dropdown
   ============================================ */
.nav-dropdown {
    position: relative;
    padding-bottom: 10px;
    /* Bridge for hover */
    margin-bottom: -10px;
}

.dropdown-menu {
    position: absolute;
    top: 100%;
    left: 0;
    background: #fff;
    min-width: 220px;
    border-radius: 8px;
    padding: 8px 0;
    opacity: 0;
    visibility: hidden;
    transition: all 0.2s ease;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
    z-index: 1000;
    list-style: none;
}

.nav-dropdown:hover .dropdown-menu {
    opacity: 1;
    visibility: visible;
    /* transform: translateY(10px); */
}

.dropdown-menu li a {
    display: block;
    padding: 12px 24px;
    color: var(--black);
    font-size: 14px;
    font-weight: 500;
    white-space: nowrap;
    transition: all 0.2s;
}

.dropdown-menu li a:hover {
    background-color: #f5f5f5;
    color: var(--gold);
}

/* ============================================
   Site Header & Mobile Navigation
   ============================================ */
.site-header {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
}

.navbar-mobile {
    padding: 12px 20px;
}

.navbar-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    max-width: 1280px;
    margin: 0 auto;
}

.navbar-mobile .logo {
    width: 90px;
    height: 150px;
}

.navbar-mobile .logo img {
    width: 100%;
    height: 100%;
    object-fit: contain;
}

.brand-text {
    color: #fff;
    font-weight: 700;
    font-size: 14px;
    letter-spacing: 1px;
    flex: 1;
    margin-left: 12px;
}

.menu-toggle {
    background: #fff;
    border: none;
    border-radius: 50%;
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    color: var(--blue);
}

/* Desktop Navigation */
.desktop-nav {
    list-style: none;
    align-items: center;
    gap: 32px;
    margin: 0;
    padding: 0;
}

.desktop-nav li a {
    color: #fff;
    text-decoration: none;
    font-size: 15px;
    font-weight: 500;
    transition: opacity 0.3s;
}

.desktop-nav li a:hover {
    opacity: 0.8;
}

.nav-btn {
    background: #fff;
    color: var(--text-black) !important;
    padding: 8px 24px;
    border-radius: 50px;
}

.nav-btn:hover {
    opacity: 0.9 !important;
}

/* Mobile Dropdown Menu */
.mobile-menu {
    background: #fff;
    position: absolute;
    top: 100%;
    left: 0;
    width: 100%;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
    z-index: 999;
    clip-path: inset(0 0 100% 0);
    transition: clip-path 0.4s ease-out;
}

.mobile-menu.active {
    clip-path: inset(0 0 0 0);
}

.mobile-menu-list {
    list-style: none;
    padding: 0;
    margin: 0;
}

.mobile-menu-list li {
    border-bottom: 1px solid #eee;
}

.mobile-menu-list li:last-child {
    border-bottom: none;
}

.mobile-link {
    display: block;
    padding: 16px 24px;
    color: var(--black);
    font-size: 16px;
    font-weight: 400;
    text-decoration: none;
    transition: background 0.2s;
}

@media (min-width: 768px) {

    .mobile-menu,
    .menu-toggle {
        display: none !important;
    }

    .navbar-mobile {
        padding: 16px 48px;
    }
}

/* ============================================
   Container
   ============================================ */
.container {
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 24px;
}

/* ============================================
   Links & Buttons
   ============================================ */
a {
    text-decoration: none;
    color: inherit;
}

.btn {
    display: inline-block;
    text-decoration: none;
    cursor: pointer;
}

/* ============================================
   Hero Section
   ============================================ */
.hero-section {
    position: relative;
    min-height: 100vh;
    background-color: #000000;
    overflow: hidden;
}

.hero-bg-wrapper {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 1;
}

.hero-bg-image {
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: center;
}

/* Decorative Circles */
.hero-circles {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 2;
    pointer-events: none;
}

.circle {
    position: absolute;
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 50%;
}

.circle-1 {
    width: 300px;
    height: 300px;
    top: 20%;
    left: 5%;
}

.circle-2 {
    width: 200px;
    height: 200px;
    top: 60%;
    left: 15%;
}

.circle-3 {
    width: 150px;
    height: 150px;
    top: 30%;
    left: 25%;
}

.circle-4 {
    width: 100px;
    height: 100px;
    bottom: 20%;
    left: 30%;
}

.circle-5 {
    width: 80px;
    height: 80px;
    top: 50%;
    left: 8%;
}

.circle-6 {
    width: 60px;
    height: 60px;
    bottom: 30%;
    left: 5%;
}

.hero-container {
    position: relative;
    z-index: 3;
    max-width: 1400px;
    margin: 0 auto;
    padding: 180px 48px 120px;
    display: flex;
    align-items: center;
    min-height: 100vh;
}

.hero-content {
    max-width: 750px;
}

.hero-subtitle {
    font-size: 20px;
    font-weight: 300;
    opacity: 0.9;
}

.hero-description {
    font-size: 18px;
    line-height: 24px;
    letter-spacing: 1.2px;
    opacity: 0.85;
    max-width: 65ch;
}

/* Bottom Curve */
.hero-curve {
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    z-index: 4;
    line-height: 0;
}

.hero-curve svg {
    width: 100%;
    height: 80px;
}

/* ============================================
      Section Styles
   ============================================ */
.section-description {
    font-size: 16px;
    line-height: 1.7;
    color: var(--black);
    opacity: 0.75;
    max-width: 700px;
}

/* ============================================
      Work Section (Books)
   ============================================ */
.work-section {
    background-color: #f5f5f5;
}

.book-card {
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
}

.book-card:hover {
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.12);
}

.book-image img {
    max-width: 100%;
    height: 100%;
    margin: 0 auto;
    display: block;
}

.book-title {
    font-size: 20px;
    font-weight: 400;
    color: var(--black);
}

.book-description {
    font-size: 14px;
    line-height: 1.6;
}

/* ============================================
   Engage Section
   ============================================ */
.engage-icon {
    color: var(--blue);
}

.engage-title {
    font-size: 22px;
    font-weight: 400;
    color: var(--black);
}

.engage-card {
    border-radius: 8px;
    background-color: var(--card-gray);
    padding: 20px;
}

.engage-link:hover {
    text-decoration: underline;
    transition: all 0.3s ease;
}

.engage-link {
    font-size: 15px;
    text-decoration: none;
}

/* ============================================
   Featured Section
   ============================================ */
.featured-image img {
    max-width: 300px;
    height: auto;
}

.featured-subtitle {
    font-size: 14px;
    letter-spacing: 2px;
}

.featured-description {
    font-size: 16px;
    line-height: 1.7;
    max-width: 65ch;
}

/* ============================================
   CTA Section
   ============================================ */
#cta {
    max-width: 90%;
    margin: 60px auto;
    padding: 120px 180px;
    border-radius: 30px;
}

.cta-card {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 12px;
}

.cta-description {
    font-size: 16px;
    letter-spacing: 2px;
    margin-bottom: 12px;
}

/* ============================================
   Footer
   ============================================ */
footer {
    background-color: #373847;
    color: #fff;
    font-family: 'Poppins', sans-serif;
}

.footer-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    /* border-bottom: 1px solid rgba(255, 255, 255, 0.1); */
    padding-bottom: 48px;
}

.fcol {
    padding: 0 15px;
    text-align: center;
    border-right: 1px solid rgba(255, 255, 255, 0.1);
}

.fcol:last-child {
    border-right: none;
    text-align: left;
    padding-left: 40px;
}

.fcol h4 {
    font-size: 20px;
    font-weight: 700;
    margin-bottom: 5px;
    line-height: 1.2;
    color: #fff;
    font-family: 'Poppins', sans-serif;
}

.fcol h4 span {
    display: block;
    font-size: 14px;
    font-weight: 400;
    margin-top: 2px;
}

.clssocials {
    display: flex;
    justify-content: center;
    gap: 12px;
    margin-top: 20px;
}

.social-icon {
    width: 38px;
    height: 38px;
    border: 1px solid rgba(255, 255, 255, 0.4);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #fff;
    transition: all 0.3s ease;
}

.clslinks a {
    display: block;
    color: #fff;
    text-decoration: none;
    font-size: 15px;
    margin-bottom: 6px;
    font-weight: 400;
}

.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding-top: 30px;
    text-align: center;
}

.copyright p {
    font-size: 14px;
    color: rgba(255, 255, 255, 0.8);
}

/* ============================================
   Title & Subtitle Styles
   ============================================ */
.title {
    font-size: clamp(28px, 4.5vw, 4rem);
    line-height: clamp(1em, 1.3em + 0.5vw, 1.15em);
}

.subtitle {
    font-size: 15px;
    font-weight: 400;
    opacity: 0.9;
}

/* ---- Hero Section ---- */
.btc-hero {
    position: relative;
    min-height: 85vh;
    background: linear-gradient(135deg, var(--dark-blue) 0%, #0a1a6e 40%, var(--blue) 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    overflow: hidden;
}

.btc-hero::before {
    content: '';
    position: absolute;
    top: -30%;
    right: -10%;
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, rgba(211, 133, 1, 0.12) 0%, transparent 70%);
    border-radius: 50%;
    pointer-events: none;
}

.btc-hero::after {
    content: '';
    position: absolute;
    bottom: -20%;
    left: -10%;
    width: 500px;
    height: 500px;
    background: radial-gradient(circle, rgba(3, 20, 251, 0.15) 0%, transparent 70%);
    border-radius: 50%;
    pointer-events: none;
}

.btc-hero-content {
    position: relative;
    z-index: 2;
    max-width: 800px;
    padding: 180px 24px 100px;
}

.btc-hero-content h1 {
    font-size: clamp(36px, 5vw, 72px);
    line-height: 1.1;
    color: var(--text-white);
    margin-bottom: 20px;
}

.btc-hero-tagline {
    font-size: clamp(16px, 2vw, 20px);
    color: var(--text-white);
    opacity: 0.9;
    line-height: 1.6;
    margin-bottom: 12px;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

.btc-hero-accent {
    font-family: 'Romie', serif;
    font-style: italic;
    font-size: clamp(18px, 2.2vw, 24px);
    color: var(--gold);
    margin-bottom: 40px;
    letter-spacing: 0.5px;
}

.btc-hero-buttons {
    display: flex;
    gap: 16px;
    justify-content: center;
    flex-wrap: wrap;
}

/* ---- Section Common ---- */
.btc-section {
    padding: 80px 0;
}

.btc-section-header {
    margin-bottom: 48px;
}

.btc-section-header h2 {
    font-size: clamp(28px, 4vw, 48px);
    line-height: 1.15;
    color: var(--black);
    margin-bottom: 12px;
}

.btc-section-header p {
    font-size: 16px;
    line-height: 1.7;
    color: var(--black);
    opacity: 0.75;
    max-width: 600px;
}

/* ---- Event Cards Grid ---- */
.btc-events-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 24px;
}

.btc-event-card {
    background: #fff;
    border-radius: 16px;
    box-shadow: 0 4px 24px rgba(0, 0, 0, 0.07);
    overflow: hidden;
    display: flex;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    animation: btcFadeUp 0.5s ease both;
}

.btc-event-card:nth-child(2) { animation-delay: 0.08s; }
.btc-event-card:nth-child(3) { animation-delay: 0.16s; }
.btc-event-card:nth-child(4) { animation-delay: 0.24s; }
.btc-event-card:nth-child(5) { animation-delay: 0.32s; }
.btc-event-card:nth-child(6) { animation-delay: 0.40s; }

.btc-event-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 12px 36px rgba(0, 0, 0, 0.12);
}

.btc-event-card.btc-past {
    display: none;
}

/* Date block left strip */
.btc-event-date {
    background: var(--dark-blue);
    color: var(--text-white);
    min-width: 100px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 24px 16px;
    text-align: center;
    flex-shrink: 0;
}

.btc-event-date .month {
    font-family: 'Poppins', sans-serif;
    font-size: 13px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 2px;
    opacity: 0.85;
}

.btc-event-date .day {
    font-family: 'Romie', serif;
    font-size: 42px;
    font-weight: 700;
    line-height: 1;
    margin: 4px 0;
}

.btc-event-date .weekday {
    font-family: 'Poppins', sans-serif;
    font-size: 12px;
    font-weight: 400;
    opacity: 0.7;
    text-transform: uppercase;
    letter-spacing: 1px;
}

/* Event details right side */
.btc-event-details {
    padding: 24px;
    display: flex;
    flex-direction: column;
    justify-content: center;
    gap: 8px;
}

.btc-event-details .detail-row {
    display: flex;
    align-items: flex-start;
    gap: 10px;
    font-size: 14px;
    color: var(--black);
    line-height: 1.5;
}

.btc-event-details .detail-row i,
.btc-event-details .detail-row svg {
    flex-shrink: 0;
    color: var(--gold);
    margin-top: 2px;
}

.btc-event-details .detail-row span {
    opacity: 0.85;
}

/* No events message */
.btc-no-events {
    text-align: center;
    padding: 60px 24px;
    color: var(--black);
    opacity: 0.6;
    font-size: 18px;
    display: none;
}

.btc-no-events.visible {
    display: block;
}

/* ---- Location Section ---- */
.btc-location {
    background: var(--card-gray);
}

.btc-location-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 48px;
    align-items: center;
}

.btc-location-text h2 {
    font-size: clamp(28px, 4vw, 48px);
    line-height: 1.15;
    color: var(--black);
    margin-bottom: 20px;
}

.btc-location-text p {
    font-size: 16px;
    line-height: 1.7;
    color: var(--black);
    opacity: 0.75;
    max-width: 500px;
}

.btc-location-address {
    margin-top: 24px;
    font-size: 15px;
    line-height: 1.8;
    color: var(--black);
    font-weight: 500;
}

.btc-location-address i,
.btc-location-address svg {
    color: var(--gold);
    margin-right: 8px;
    vertical-align: middle;
}

.btc-map-wrapper {
    border-radius: 16px;
    overflow: hidden;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.1);
    aspect-ratio: 4/3;
}

.btc-map-wrapper iframe {
    width: 100%;
    height: 100%;
    border: 0;
}

/* ---- CTA / Card Section ---- */
.btc-cta-wrapper {
    padding: 80px 0;
    background: var(--background-white);
}

.btc-cta-card {
    background: var(--dark-blue);
    border-radius: 32px;
    text-align: center;
    padding: 80px 60px;
}

.btc-cta-card h2 {
    font-size: clamp(28px, 4vw, 48px);
    line-height: 1.15;
    color: var(--text-white);
    margin-bottom: 16px;
}

.btc-cta-card p {
    font-size: 15px;
    line-height: 1.7;
    color: var(--text-white);
    opacity: 0.8;
    max-width: 550px;
    margin: 0 auto 32px;
}

.btc-cta-buttons {
    display: flex;
    gap: 16px;
    justify-content: center;
    flex-wrap: wrap;
}

/* ---- Animations ---- */
@keyframes btcFadeUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* ============================================
   Responsive
   ============================================ */
@media (max-width: 1024px) {
    .btc-location-grid {
        grid-template-columns: 1fr;
        gap: 32px;
    }

    .btc-events-grid {
        grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    }
}

@media (max-width: 768px) {
    .btc-hero {
        min-height: 75vh;
    }

    .btc-hero-content {
        padding: 140px 20px 80px;
    }

    .btc-hero-buttons {
        flex-direction: column;
        align-items: center;
    }

    .btc-hero-buttons .btn {
        width: 100%;
        max-width: 320px;
    }

    .btc-section {
        padding: 60px 0;
    }

    .btc-event-card {
        flex-direction: column;
    }

    .btc-event-date {
        min-width: auto;
        flex-direction: row;
        gap: 12px;
        padding: 16px 24px;
    }

    .btc-event-date .day {
        font-size: 32px;
        margin: 0;
    }

    .btc-location-text p {
        max-width: 100%;
    }

    .btc-map-wrapper {
        aspect-ratio: 16/9;
    }

    .btc-cta-card {
        padding: 60px 32px;
        border-radius: 24px;
    }

    .btc-cta-buttons {
        flex-direction: column;
        align-items: center;
    }

    .btc-cta-buttons .btn {
        width: 100%;
        max-width: 300px;
    }
}

@media (max-width: 480px) {
    .btc-events-grid {
        grid-template-columns: 1fr;
    }

    .btc-event-date {
        padding: 12px 20px;
        gap: 8px;
    }

    .btc-event-details {
        padding: 20px;
    }
}