:root {
    --bg-color: #faf7f2;
    --bg-accent: #f0ebe3;
    --card-bg: #ffffff;
    --primary-color: #6b4c9a;
    --primary-light: #8b6fbf;
    --accent-warm: #e8985e;
    --accent-warm-light: #f5c6a0;
    --text-main: #3a3238;
    --text-muted: #8a7f86;
    --card-border: rgba(107, 76, 154, 0.15);
    --shadow-soft: rgba(107, 76, 154, 0.08);
    --transition-speed: 0.6s;
    --ot-color: #d9534f;
    --nt-color: #337ab7;
    --gold-accent: #d4af37;
}

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

body {
    font-family: 'Outfit', sans-serif;
    background-color: var(--bg-color);
    color: var(--text-main);
    display: flex;
    justify-content: center;
    align-items: flex-start;
    min-height: 100vh;
    overflow-y: auto;
}

#neutralinoapp {
    width: 100%;
    max-width: 1100px;
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: 2rem;
    gap: 2rem;
}

.app-layout {
    display: flex;
    gap: 3rem;
    width: 100%;
    align-items: flex-start;
}

.main-column {
    flex: 1.2;
    display: flex;
    flex-direction: column;
    gap: 2rem;
    width: 100%;
}

.side-column {
    flex: 0.8;
    display: flex;
    flex-direction: column;
    gap: 2rem;
    width: 100%;
    position: sticky;
    top: 2rem;
}

header {
    text-align: center;
}

h1 {
    font-family: 'Playfair Display', serif;
    font-size: 2.8rem;
    color: var(--primary-color);
    margin-bottom: 0.5rem;
    letter-spacing: 1px;
}

#timer-container {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.75rem;
    width: 100%;
}

#timer {
    font-size: 3rem;
    font-weight: 300;
    color: var(--text-main);
    line-height: 1;
}

#timer.warning { color: var(--accent-warm); }
#timer.danger { color: #d9534f; }

#progress-bar-bg {
    width: 100%;
    max-width: 400px;
    height: 8px;
    background: var(--bg-accent);
    border-radius: 4px;
    overflow: hidden;
}

#progress-bar {
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, var(--primary-color), var(--accent-warm));
    transition: width 1s linear;
}

main {
    width: 100%;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 2rem;
}

#mode-tabs {
    display: flex;
    justify-content: center;
    gap: 1rem;
    margin-bottom: 1.5rem;
}

.tab-btn {
    padding: 0.6rem 1.5rem;
    font-size: 0.9rem;
    background: var(--bg-accent);
    color: var(--text-muted);
    border: 1px solid var(--card-border);
    transition: all 0.3s ease;
}

.tab-btn:hover {
    background: #e8e1d8;
    color: var(--text-main);
}

.tab-btn.active {
    background: var(--primary-color);
    color: white;
    border-color: var(--primary-color);
}

#phase-label {
    font-size: 0.85rem;
    font-weight: 700;
    letter-spacing: 2px;
    color: var(--accent-warm);
    margin-bottom: 0.25rem;
    opacity: 0;
    transition: opacity 0.3s ease;
}

#phase-label.visible { opacity: 1; }

/* Buzzer Styles */
#buzzer-container {
    margin: 1rem 0;
}

.buzzer-btn {
    background: linear-gradient(135deg, #ff4b2b, #ff416c);
    color: white;
    font-size: 1.5rem;
    padding: 1rem 2.5rem;
    border-radius: 50px;
    box-shadow: 0 8px 20px rgba(255, 75, 43, 0.4);
    border: 4px solid rgba(255, 255, 255, 0.2);
    animation: pulse 2s infinite;
}

.buzzer-btn:active {
    transform: scale(0.95);
    box-shadow: 0 4px 10px rgba(255, 75, 43, 0.6);
}

@keyframes pulse {
    0% { transform: scale(1); box-shadow: 0 8px 20px rgba(255, 75, 43, 0.4); }
    50% { transform: scale(1.05); box-shadow: 0 12px 30px rgba(255, 75, 43, 0.6); }
    100% { transform: scale(1); box-shadow: 0 8px 20px rgba(255, 75, 43, 0.4); }
}

.hidden { display: none !important; }

#card-deck-container {
    perspective: 1500px;
    width: 100%;
    max-width: 900px; /* Wider for dual cards */
    min-height: 380px;
}

#card-deck {
    display: flex;
    gap: 1.5rem;
    justify-content: center;
    width: 100%;
}

.card-container {
    flex: 1;
    max-width: 440px;
    height: 100%;
    cursor: pointer;
}

.card-container.hidden { display: none; }

.card {
    width: 100%;
    height: 100%;
    min-height: 380px;
    position: relative;
    transform-style: preserve-3d;
    transition: transform var(--transition-speed) cubic-bezier(0.175, 0.885, 0.32, 1.275);
}

.card.flipped { transform: rotateY(180deg); }

.card-face {
    position: absolute;
    width: 100%;
    min-height: 100%;
    -webkit-backface-visibility: hidden;
    backface-visibility: hidden;
    padding: 3rem 2rem;
    border-radius: 24px;
    background: var(--card-bg);
    border: 2px solid var(--card-border);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    text-align: center;
    box-shadow: 0 12px 40px var(--shadow-soft);
    overflow: hidden;
}

/* Testament Color Coding */
.card.ot .card-face {
    border-color: var(--ot-color);
}

.card.nt .card-face {
    border-color: var(--nt-color);
}

.card.ot .topic-label { color: var(--ot-color); }
.card.nt .topic-label { color: var(--nt-color); }

.card.ot .verse-reference { color: var(--ot-color); }
.card.nt .verse-reference { color: var(--nt-color); }

/* Decorative corner for testaments */
.card-face::after {
    content: "";
    position: absolute;
    top: 0;
    right: 0;
    width: 60px;
    height: 60px;
    background: linear-gradient(135deg, transparent 50%, rgba(212, 175, 55, 0.3) 50%);
    pointer-events: none;
}

.card.ot .card-face::after {
    background: linear-gradient(135deg, transparent 50%, var(--ot-color) 50%);
    opacity: 0.1;
}

.card.nt .card-face::after {
    background: linear-gradient(135deg, transparent 50%, var(--nt-color) 50%);
    opacity: 0.1;
}

#notes-section {
    background: var(--card-bg);
    padding: 1.5rem 2rem;
    border-radius: 20px;
    border: 2px solid var(--card-border);
    box-shadow: 0 4px 12px var(--shadow-soft);
}

#notes-section h2 {
    margin-bottom: var(--spacing-md);
    font-size: 1.5rem;
    color: var(--text-primary);
}

#notes-form {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

#form-status {
    font-size: 0.9rem;
    font-weight: 500;
    min-height: 1.2rem;
}

.form-hint {
    font-size: 0.75rem;
    color: var(--text-muted);
    text-align: center;
    margin-top: -0.5rem;
}

#notes-area, #submitter-email {
    width: 100%;
    padding: 1rem;
    background: var(--bg-accent);
    border: 1px solid var(--card-border);
    border-radius: 12px;
    color: var(--text-main);
    font-family: 'Outfit', sans-serif;
    font-size: 1rem;
    transition: all 0.3s ease;
}

#notes-area {
    min-height: 150px;
    resize: vertical;
}

#notes-area:focus, #submitter-email:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 2px rgba(100, 108, 255, 0.2);
}

#submit-notes-btn {
    align-self: flex-end;
    padding: var(--spacing-sm) var(--spacing-xl);
}

footer {
    margin-top: var(--spacing-xl);
    text-align: center;
    border-top: 1px solid var(--border-color);
    padding-top: var(--spacing-md);
}

.card-back {
    transform: rotateY(180deg);
    background: linear-gradient(145deg, #f8f4ff, #fff8f0);
}

.topic-label {
    font-size: 0.8rem;
    text-transform: uppercase;
    letter-spacing: 3px;
    color: var(--accent-warm);
    font-weight: 600;
    margin-bottom: 1.5rem;
}

.verse-text {
    font-family: 'Playfair Display', serif;
    font-size: 1.5rem;
    line-height: 1.5;
    margin-bottom: 1.5rem;
    font-style: italic;
    color: var(--text-main);
}

.verse-reference {
    font-size: 1.2rem;
    font-weight: 600;
    color: var(--primary-color);
    margin-bottom: 2rem;
}

.card-hint {
    font-size: 0.75rem;
    color: var(--text-muted);
    letter-spacing: 1px;
    margin-top: auto;
}

.card-back h3 {
    color: var(--primary-color);
    margin-bottom: 1.5rem;
    font-size: 1.6rem;
}

.card-back ul {
    list-style: none;
    text-align: left;
    width: 100%;
}

.card-back li {
    font-size: 1.05rem;
    margin-bottom: 1rem;
    padding-left: 1.8rem;
    position: relative;
    line-height: 1.4;
}

.card-back li::before {
    content: "✦";
    position: absolute;
    left: 0;
    color: var(--accent-warm);
    font-size: 0.8rem;
    top: 4px;
}

#controls {
    display: flex;
    gap: 1.25rem;
    justify-content: center;
    flex-wrap: wrap;
}

button {
    padding: 1rem 2rem;
    border-radius: 14px;
    font-family: 'Outfit', sans-serif;
    font-size: 1.05rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    border: none;
}

.primary-btn {
    background: linear-gradient(135deg, var(--primary-color), var(--primary-light));
    color: #fff;
}

.primary-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 24px rgba(107, 76, 154, 0.3);
}

.secondary-btn {
    background-color: var(--bg-accent);
    color: var(--text-main);
    border: 1px solid var(--card-border);
}

.secondary-btn:hover { background: #e8e1d8; }

.print-link-btn {
    text-decoration: none;
    display: flex;
    align-items: center;
    justify-content: center;
}

.text-btn {
    background: none;
    color: var(--text-muted);
    font-size: 0.9rem;
    text-decoration: underline;
}

#rules-section {
    width: 100%;
    max-width: 600px;
    background: var(--card-bg);
    border: 2px solid var(--card-border);
    border-radius: 20px;
    padding: 1.5rem 2rem;
    box-shadow: 0 4px 12px var(--shadow-soft);
}

#rules-toggle {
    display: flex;
    justify-content: space-between;
    align-items: center;
    cursor: pointer;
    -webkit-user-select: none;
    user-select: none;
}

#rules-toggle h2 {
    font-family: 'Playfair Display', serif;
    font-size: 1.4rem;
    color: var(--primary-color);
}

.toggle-icon {
    font-size: 1.2rem;
    color: var(--text-muted);
    transition: transform 0.3s ease;
}

.toggle-icon.open { transform: rotate(180deg); }

#rules-content {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.4s ease;
}

#rules-content.visible { max-height: 800px; }

#rules-content ol {
    margin-top: 1.25rem;
    padding-left: 1.5rem;
}

#rules-content li {
    margin-bottom: 0.8rem;
    line-height: 1.5;
    font-size: 1rem;
}

#rules-content li strong { color: var(--primary-color); }

footer {
    color: var(--text-muted);
    font-size: 0.9rem;
    margin-bottom: 2rem;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(20px); }
    to { opacity: 1; transform: translateY(0); }
}

.card-container { animation: fadeIn 0.6s ease forwards; }

@media (max-width: 900px) {
    .app-layout {
        flex-direction: column;
        gap: 2rem;
    }
    
    .side-column {
        position: static;
    }
    
    #neutralinoapp {
        padding: 1rem;
    }
}