:root {
    --lego-yellow: #FFED00; --lego-red: #E3000B; --lego-blue: #006CB7;
    --lego-blue-dark: #003D6B; --lego-blue-soft: #E3F2FD;
    --lego-green: #00A651; --lego-green-soft: #E8F5E9;
    --lego-orange: #FF8C00; --lego-orange-soft: #FFF3E0;
    --lego-teal: #00BCD4; --lego-purple: #9C27B0; --lego-purple-soft: #F3E5F5;
    --lego-black: #1D1D1B; --lego-dark-gray: #4A4A4A; --lego-medium-gray: #8A8A8A;
    --lego-light-gray: #F4F4F5; --lego-border: #E8E8EA; --lego-white: #FFFFFF;
    --canvas-bg: #F7F7F8; --brick-radius: 12px;
}

* { margin: 0; padding: 0; box-sizing: border-box; -webkit-tap-highlight-color: transparent; }
body { font-family: 'Nunito', sans-serif; background: var(--canvas-bg); color: var(--lego-black); overflow-x: hidden; display: flex; flex-direction: column; min-height: 100vh; }

/* Login Screen */
.password-screen { position: fixed; top: 0; left: 0; right: 0; bottom: 0; background: var(--canvas-bg); display: flex; align-items: center; justify-content: center; z-index: 10000; transition: opacity 0.5s, transform 0.5s; }
.password-screen.hidden { opacity: 0; transform: scale(1.1); pointer-events: none; }
.password-box { background: var(--lego-white); border-radius: 16px; padding: 48px 36px; text-align: center; max-width: 420px; width: 90%; box-shadow: 0 1px 3px rgba(0,0,0,0.06), 0 8px 24px rgba(0,0,0,0.08); border: 1px solid var(--lego-border); }
.password-studs { display: flex; justify-content: center; gap: 10px; margin-bottom: 24px; }
.password-stud { width: 28px; height: 28px; border-radius: 50%; box-shadow: inset 0 -2px 0 rgba(0,0,0,0.1); }
.password-box h2 { font-size: 1.5rem; font-weight: 900; margin-bottom: 8px; }
.password-box p { color: var(--lego-medium-gray); margin-bottom: 24px; font-weight: 600; font-size: 0.95rem; }
.password-input-wrap input { width: 100%; padding: 14px 20px; border: 2px solid var(--lego-border); border-radius: var(--brick-radius); font-family: 'Nunito', sans-serif; font-size: 1rem; font-weight: 700; text-align: center; outline: none; transition: border-color 0.3s; margin-bottom: 16px; background: var(--canvas-bg); }
.password-input-wrap input:focus { border-color: var(--lego-blue); background: var(--lego-white); }
.password-btn { width: 100%; padding: 14px; background: var(--lego-black); color: white; border: none; border-radius: var(--brick-radius); font-family: 'Nunito', sans-serif; font-size: 1rem; font-weight: 800; cursor: pointer; box-shadow: 0 4px 0 #000; transition: all 0.15s; text-transform: uppercase; letter-spacing: 1px; }
.password-btn:hover { transform: translateY(-2px); box-shadow: 0 6px 0 #000; }
.password-btn:active { transform: translateY(2px); box-shadow: 0 2px 0 #000; }
.password-error { color: var(--lego-red); font-weight: 700; margin-top: 12px; font-size: 0.9rem; display: none; }
.password-error.show { display: block; animation: shake 0.5s; }
@keyframes shake { 0%, 100% { transform: translateX(0); } 25% { transform: translateX(-8px); } 75% { transform: translateX(8px); } }

.app { display: none; flex-direction: column; flex: 1; }
.app.visible { display: flex; }

/* Hero Header */
.hero { background: var(--lego-blue-dark); color: white; padding: 56px 20px 72px; text-align: center; position: relative; overflow: hidden; border-bottom: 4px solid var(--lego-yellow); }
.brick-pattern { position: absolute; top: 0; left: 0; right: 0; bottom: 0; opacity: 1; background-image: url('../baseplate.jpg'); background-size: 500px; background-repeat: repeat; background-position: center; }
.hero-content { position: relative; z-index: 1; max-width: 600px; margin: 0 auto; text-shadow: 0 2px 8px rgba(0,0,0,0.5); }
.hero-badge { display: inline-block; background: var(--lego-yellow); color: var(--lego-black); padding: 6px 16px; border-radius: 20px; font-size: 0.8rem; font-weight: 900; text-transform: uppercase; letter-spacing: 1px; margin-bottom: 20px; box-shadow: 0 4px 12px rgba(0,0,0,0.2); text-shadow: none; }
.hero h1 { font-size: 2.4rem; font-weight: 900; text-transform: uppercase; letter-spacing: 1px; margin-bottom: 10px; line-height: 1.1; }
.hero .subtitle { font-size: 1.1rem; font-weight: 700; opacity: 0.9; margin-bottom: 4px; }
.hero .dates { font-size: 1rem; font-weight: 700; opacity: 0.7; margin-bottom: 32px; }

.countdown-wrap { display: flex; justify-content: center; gap: 10px; flex-wrap: wrap; margin-bottom: 28px; }
.countdown-block { background: rgba(0,0,0,0.4); border: 1px solid rgba(255,255,255,0.15); backdrop-filter: blur(4px); border-radius: var(--brick-radius); padding: 14px 18px; min-width: 72px; box-shadow: inset 0 2px 4px rgba(255,255,255,0.1); text-shadow: none; }
.countdown-block .number { font-size: 1.8rem; font-weight: 900; display: block; line-height: 1; color: var(--lego-yellow); text-shadow: 0 2px 4px rgba(0,0,0,0.3); }
.countdown-block .label { font-size: 0.65rem; font-weight: 800; text-transform: uppercase; letter-spacing: 1px; color: white; opacity: 0.8; margin-top: 4px; }
.hero-cta { display: inline-block; background: var(--lego-yellow); color: var(--lego-black); padding: 12px 28px; border-radius: 50px; font-weight: 900; font-size: 0.9rem; text-decoration: none; text-transform: uppercase; letter-spacing: 1px; transition: all 0.15s; box-shadow: 0 4px 12px rgba(0,0,0,0.2); text-shadow: none; cursor: pointer; border: none; font-family: 'Nunito', sans-serif; }
.hero-cta:hover { transform: translateY(-2px); box-shadow: 0 6px 16px rgba(0,0,0,0.3); }

/* Centered Tabs */
.nav-tabs { background: var(--lego-white); padding: 0 16px; position: sticky; top: 0; z-index: 100; border-bottom: 1px solid var(--lego-border); box-shadow: 0 1px 8px rgba(0,0,0,0.04); }
.nav-tabs-inner { display: flex; max-width: 700px; margin: 0 auto; overflow-x: auto; scrollbar-width: none; justify-content: center; }
.nav-tabs-inner::-webkit-scrollbar { display: none; }
.nav-tab { flex: 1; min-width: fit-content; padding: 14px 18px; text-align: center; font-weight: 800; font-size: 0.8rem; text-transform: uppercase; letter-spacing: 0.5px; cursor: pointer; border-bottom: 3px solid transparent; transition: all 0.3s; white-space: nowrap; color: var(--lego-medium-gray); text-decoration: none; }
.nav-tab:hover { color: var(--lego-dark-gray); }
.nav-tab.active { color: var(--lego-black); border-bottom-color: var(--lego-red); }
.nav-tab .tab-emoji { display: block; font-size: 1.2rem; margin-bottom: 2px; }

/* Unified Sections for all tabs */
.day-section { display: none; padding: 24px 16px 60px; max-width: 700px; margin: 0 auto; width: 100%; }
.day-section.active { display: block; animation: fadeIn 0.4s ease; }
@keyframes fadeIn { from { opacity: 0; transform: translateY(8px); } to { opacity: 1; transform: translateY(0); } }

.day-header { text-align: center; margin-bottom: 24px; padding: 24px; border-radius: var(--brick-radius); color: white; position: relative; overflow: hidden; background: #2C3E50; }
.day-header h2 { font-size: 1.5rem; font-weight: 900; text-transform: uppercase; position: relative; z-index: 1; text-shadow: 0 2px 4px rgba(0,0,0,0.5); }
.day-header p { font-weight: 600; opacity: 0.9; margin-top: 4px; font-size: 0.95rem; position: relative; z-index: 1; text-shadow: 0 1px 2px rgba(0,0,0,0.5); }

/* Section Dividers */
.stud-divider { display: flex; justify-content: center; gap: 8px; padding: 16px 0; }
.stud { width: 10px; height: 10px; border-radius: 50%; opacity: 0.3; }
.stud-red { background: var(--lego-red); }
.stud-blue { background: var(--lego-blue); }
.stud-green { background: var(--lego-green); }
.stud-yellow { background: var(--lego-yellow); border: 1px solid #ddd; }
.stud-orange { background: var(--lego-orange); }
.timeline-label { text-align: center; padding: 4px 0 12px; font-weight: 800; font-size: 0.7rem; text-transform: uppercase; letter-spacing: 2px; color: var(--lego-medium-gray); }

/* Cards */
.agenda-card { background: var(--lego-white); border-radius: var(--brick-radius); margin-bottom: 12px; border: 1px solid var(--lego-border); position: relative; overflow: hidden; transition: transform 0.2s, box-shadow 0.2s; display: flex; flex-direction: column; }
.agenda-card:hover { transform: translateY(-1px); box-shadow: 0 4px 12px rgba(0,0,0,0.06); }
.card-highlight { border: 2px solid var(--lego-yellow); background: #FFFEF5; }

.card-bg { 
    position: absolute; 
    top: 0; left: 0; width: 100%; height: 220px; 
    background-size: cover; 
    background-position: center; 
    z-index: 0; 
    pointer-events: none; 
    -webkit-mask-image: linear-gradient(to bottom, black 0%, black 50px, rgba(0,0,0,0.1) 120px, transparent 200px); 
    mask-image: linear-gradient(to bottom, black 0%, black 50px, rgba(0,0,0,0.1) 120px, transparent 200px); 
}

.card-body { padding: 24px; position: relative; z-index: 1; border-left: 4px solid transparent; flex: 1; }
.agenda-card.has-image .card-body { padding-top: 100px; }
.card-travel .card-body { border-left-color: var(--lego-blue); }
.card-activity .card-body { border-left-color: var(--lego-orange); }
.card-food .card-body { border-left-color: var(--lego-green); }
.card-session .card-body { border-left-color: var(--lego-red); }
.card-break .card-body { border-left-color: var(--lego-teal); }
.card-fun .card-body { border-left-color: var(--lego-purple); }
.card-info .card-body { border-left-color: var(--lego-blue); }

.card-time { display: inline-block; background: var(--lego-light-gray); padding: 3px 10px; border-radius: 6px; font-size: 0.75rem; font-weight: 800; color: var(--lego-medium-gray); margin-bottom: 8px; position: relative; z-index: 2; box-shadow: 0 1px 4px rgba(255,255,255,0.9); }
.agenda-card.has-image .card-title { text-shadow: 0 0 15px rgba(255,255,255,1), 0 0 25px rgba(255,255,255,1); }
.card-title { font-size: 1.05rem; font-weight: 800; margin-bottom: 4px; display: flex; align-items: center; gap: 8px; color: var(--lego-black); padding-right: 80px; position: relative; z-index: 2; }
.card-location { font-size: 0.85rem; font-weight: 700; color: var(--lego-medium-gray); margin-bottom: 8px; display: flex; align-items: center; gap: 4px; }

.card-desc { color: var(--lego-dark-gray); font-weight: 600; font-size: 0.88rem; line-height: 1.6; }
.card-desc p { margin-bottom: 8px; }
.card-desc p:last-child { margin-bottom: 0; }
.card-desc ul { list-style: none; padding: 0; margin-top: 10px; margin-bottom: 10px; }
.card-desc ul li { padding: 8px 0; border-bottom: 1px solid var(--lego-light-gray); display: flex; align-items: flex-start; gap: 8px; }
.card-desc ul li:last-child { border-bottom: none; }
.card-desc ul li::before { content: '•'; color: var(--lego-red); font-weight: 900; flex-shrink: 0; font-size: 1.2rem; line-height: 1; }

.card-actions { margin-top: 16px; display: flex; gap: 8px; flex-wrap: wrap; align-items: center; justify-content: flex-end; }

.card-link { 
    background-color: #0066cc; 
    color: #ffffff; 
    font-size: 0.9rem; 
    font-weight: 900; 
    padding: 14px 20px; 
    border-radius: 8px; 
    box-shadow: 0 4px 12px rgba(0, 102, 204, 0.3); 
    transition: all 0.2s ease; 
    display: block; 
    width: 100%; 
    text-align: center; 
    text-decoration: none; 
    cursor: pointer; 
    border: none; 
    order: 10; 
    margin-top: 8px; 
    text-transform: uppercase; 
    letter-spacing: 1px; 
    animation: pulseAction 2s infinite; 
}
.card-link:hover { 
    background-color: #0052a3; 
    color: #ffffff; 
    transform: translateY(-2px); 
    box-shadow: 0 6px 16px rgba(0, 102, 204, 0.4); 
    animation: none; 
}

@keyframes pulseAction {
    0% { box-shadow: 0 0 0 0 rgba(0, 102, 204, 0.4); }
    70% { box-shadow: 0 0 0 10px rgba(0, 102, 204, 0); }
    100% { box-shadow: 0 0 0 0 rgba(0, 102, 204, 0); }
}

.card-link-secondary { display: inline-block; font-size: 0.8rem; font-weight: 800; color: var(--lego-dark-gray); text-decoration: none; padding: 6px 12px; border: 2px solid var(--lego-border); border-radius: 6px; transition: all 0.2s; background: var(--lego-light-gray); }
.card-link-secondary:hover { background: var(--lego-medium-gray); color: white; border-color: var(--lego-medium-gray); }

.card-tag { display: inline-block; padding: 4px 10px; border-radius: 6px; font-size: 0.7rem; font-weight: 800; text-transform: uppercase; letter-spacing: 0.5px; order: -1; margin-right: auto; }
.tag-optional { background: var(--lego-orange-soft); color: var(--lego-orange); }
.tag-required { background: var(--lego-red-soft); color: var(--lego-red); }
.tag-info { background: var(--lego-blue-soft); color: var(--lego-blue); }
.tag-fun { background: var(--lego-purple-soft); color: var(--lego-purple); }

.req-badge { position: absolute; top: 16px; right: 16px; font-size: 0.7rem; font-weight: 900; padding: 4px 10px; border-radius: 12px; text-transform: uppercase; letter-spacing: 0.5px; z-index: 2; box-shadow: 0 2px 8px rgba(0,0,0,0.15); }
.req-badge.required { background: #FEE2E2; color: #B91C1C; }
.req-badge.optional { background: #FEF3C7; color: #B45309; }

.loading-spinner { text-align: center; padding: 40px; color: var(--lego-medium-gray); font-weight: 700; }

/* Map Specific Styles */
#googleMap { width: 100%; min-height: 550px; border-radius: var(--brick-radius); border: 2px solid var(--lego-border); box-shadow: 0 4px 16px rgba(0,0,0,0.06); background: #E5E3DF; }
.map-popup { padding: 10px; max-width: 240px; font-family: 'Nunito', sans-serif; text-align: center; }
.map-popup h3 { font-weight: 900; font-size: 1.15rem; margin: 8px 0 4px; color: var(--lego-black); }
.map-popup p { font-size: 0.88rem; color: #555; margin-bottom: 14px; line-height: 1.5; font-weight: 600; }
.btn-directions { display: block; background: var(--lego-blue); color: white !important; padding: 10px; border-radius: 8px; text-decoration: none; font-weight: 800; font-size: 0.8rem; text-transform: uppercase; letter-spacing: 1px; transition: transform 0.2s, background 0.2s; }
.btn-directions:hover { transform: translateY(-2px); background: var(--lego-blue-dark); }

.footer { background: var(--lego-black); color: white; text-align: center; padding: 32px 20px; font-weight: 700; font-size: 0.85rem; margin-top: auto; }
.footer-emoji { font-size: 1.5rem; margin-bottom: 8px; }

.floating-bricks { position: fixed; top: 0; left: 0; right: 0; bottom: 0; pointer-events: none; z-index: -1; overflow: hidden; }
.floating-brick { position: absolute; width: 30px; height: 20px; border-radius: 3px; opacity: 0.04; animation: floatBrick linear infinite; }
.floating-brick::after { content: ''; position: absolute; top: -6px; left: 4px; width: 9px; height: 6px; border-radius: 2px 2px 0 0; background: inherit; }
.floating-brick::before { content: ''; position: absolute; top: -6px; right: 4px; width: 9px; height: 6px; border-radius: 2px 2px 0 0; background: inherit; }
@keyframes floatBrick { 0% { transform: translateY(110vh) rotate(0deg); } 100% { transform: translateY(-10vh) rotate(360deg); } }

#confetti-canvas { position: fixed; top: 0; left: 0; width: 100%; height: 100%; pointer-events: none; z-index: 9999; }