:root {
    --primary-bg: #1a0033;
    --secondary-bg: #2d1b4e;
    --accent-color: #8b5cf6;
    --accent-hover: #a78bfa;
    --card-bg: #ffffff;
    --card-back: #4c1d95;
    --text-light: #ffffff;
    --text-dark: #1f2937;
    --border-color: #6d28d9;
    --shadow: rgba(139, 92, 246, 0.3);
}

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

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background: linear-gradient(135deg, var(--primary-bg) 0%, var(--secondary-bg) 100%);
    color: var(--text-light);
    min-height: 100vh;
    line-height: 1.6;
}

.app-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 20px;
}

header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px 0;
    border-bottom: 2px solid var(--border-color);
    margin-bottom: 30px;
}

.app-title {
    font-size: 2.5rem;
    background: linear-gradient(45deg, var(--accent-color), var(--accent-hover));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.language-selector {
    padding: 8px 16px;
    background: var(--secondary-bg);
    color: var(--text-light);
    border: 2px solid var(--border-color);
    border-radius: 8px;
    font-size: 1rem;
    cursor: pointer;
    transition: all 0.3s ease;
}

.language-selector:hover {
    border-color: var(--accent-hover);
    background: var(--border-color);
}

main {
    display: flex;
    flex-direction: column;
    gap: 30px;
}

.spread-selector {
    text-align: center;
}

.spread-selector h2 {
    margin-bottom: 20px;
    font-size: 1.8rem;
}

.spread-buttons {
    display: flex;
    gap: 15px;
    flex-wrap: wrap;
    justify-content: center;
}

.spread-btn {
    padding: 12px 24px;
    background: var(--secondary-bg);
    color: var(--text-light);
    border: 2px solid var(--border-color);
    border-radius: 8px;
    font-size: 1rem;
    cursor: pointer;
    transition: all 0.3s ease;
    font-weight: 500;
}

.spread-btn:hover {
    background: var(--border-color);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px var(--shadow);
}

.spread-btn.active {
    background: var(--accent-color);
    border-color: var(--accent-color);
}

.custom-spread-options {
    margin-top: 20px;
    padding: 20px;
    background: var(--secondary-bg);
    border-radius: 8px;
    border: 2px solid var(--border-color);
}

.custom-spread-options.hidden {
    display: none;
}

.custom-spread-options label {
    margin-right: 10px;
    font-size: 1.1rem;
}

.custom-spread-options input {
    padding: 8px;
    font-size: 1rem;
    border-radius: 6px;
    border: 2px solid var(--border-color);
    background: var(--primary-bg);
    color: var(--text-light);
    width: 80px;
}

.card-deck-area {
    text-align: center;
    padding: 40px 20px;
}

.draw-button {
    padding: 16px 48px;
    background: linear-gradient(45deg, var(--accent-color), var(--accent-hover));
    color: var(--text-light);
    border: none;
    border-radius: 12px;
    font-size: 1.3rem;
    font-weight: bold;
    cursor: pointer;
    transition: all 0.3s ease;
    box-shadow: 0 4px 16px var(--shadow);
}

.draw-button:hover {
    transform: translateY(-3px);
    box-shadow: 0 6px 20px var(--shadow);
}

.draw-button:active {
    transform: translateY(-1px);
}

.draw-button:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

.card-deck {
    margin-top: 30px;
    min-height: 200px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.deck-placeholder {
    font-size: 1.2rem;
    opacity: 0.7;
}

.spread-area {
    padding: 30px 20px;
    background: rgba(45, 27, 78, 0.5);
    border-radius: 12px;
    border: 2px solid var(--border-color);
}

.spread-area.hidden {
    display: none;
}

.spread-area h2 {
    text-align: center;
    margin-bottom: 30px;
    font-size: 1.8rem;
}

.card-spread {
    display: flex;
    gap: 20px;
    flex-wrap: wrap;
    justify-content: center;
    align-items: flex-start;
}

.card-spread.single-spread {
    justify-content: center;
}

.card-spread.three-spread {
    justify-content: center;
}

.card-spread.celtic-spread {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 15px;
    max-width: 800px;
    margin: 0 auto;
}

.card-container {
    perspective: 1000px;
    width: 140px;
    height: 240px;
    cursor: pointer;
    position: relative;
}

.card-container.reversed .card {
    transform: rotateY(180deg) rotateZ(180deg);
}

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

.card-container.reversed.flipped .card {
    transform: rotateY(180deg) rotateZ(180deg);
}

.card {
    width: 100%;
    height: 100%;
    position: relative;
    transform-style: preserve-3d;
    transition: transform 0.6s cubic-bezier(0.4, 0.0, 0.2, 1);
}

.card-face,
.card-back {
    width: 100%;
    height: 100%;
    position: absolute;
    backface-visibility: hidden;
    border-radius: 8px;
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.3);
    display: flex;
    align-items: center;
    justify-content: center;
}

.card-face {
    background: var(--card-bg);
    transform: rotateY(180deg);
    padding: 10px;
    flex-direction: column;
}

.card-back {
    background: linear-gradient(135deg, var(--card-back) 0%, var(--border-color) 100%);
    border: 3px solid var(--accent-color);
}

.card-back::before {
    content: '';
    width: 80%;
    height: 90%;
    border: 2px solid var(--accent-hover);
    border-radius: 4px;
    position: absolute;
}

.card-back::after {
    content: '★';
    font-size: 3rem;
    color: var(--accent-hover);
    opacity: 0.5;
}

.card-image {
    width: 100%;
    height: 70%;
    object-fit: cover;
    border-radius: 4px;
    background: #f3f4f6;
}

.card-title {
    font-size: 0.85rem;
    font-weight: bold;
    color: var(--text-dark);
    margin-top: 8px;
    text-align: center;
    line-height: 1.2;
}

.card-position-label {
    position: absolute;
    bottom: -30px;
    left: 50%;
    transform: translateX(-50%);
    font-size: 0.85rem;
    color: var(--accent-hover);
    white-space: nowrap;
    text-align: center;
}

.card-details {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.85);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1000;
    padding: 20px;
    opacity: 0;
    animation: fadeIn 0.3s forwards;
}

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

@keyframes fadeIn {
    to {
        opacity: 1;
    }
}

.card-detail-content {
    background: var(--secondary-bg);
    border: 3px solid var(--border-color);
    border-radius: 12px;
    padding: 40px;
    max-width: 600px;
    width: 100%;
    max-height: 90vh;
    overflow-y: auto;
    position: relative;
    box-shadow: 0 8px 32px rgba(139, 92, 246, 0.4);
}

.close-details {
    position: absolute;
    top: 10px;
    right: 15px;
    background: none;
    border: none;
    font-size: 2.5rem;
    color: var(--text-light);
    cursor: pointer;
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.3s ease;
}

.close-details:hover {
    color: var(--accent-hover);
    transform: rotate(90deg);
}

.card-detail-content h3 {
    font-size: 2rem;
    margin-bottom: 15px;
    color: var(--accent-hover);
}

.card-orientation {
    font-size: 1.2rem;
    margin-bottom: 20px;
    color: var(--accent-color);
    font-weight: bold;
}

.card-meaning {
    font-size: 1.1rem;
    line-height: 1.8;
    margin-bottom: 20px;
}

.card-keywords {
    padding: 15px;
    background: var(--primary-bg);
    border-radius: 8px;
    border-left: 4px solid var(--accent-color);
}

.card-keywords strong {
    color: var(--accent-hover);
    display: block;
    margin-bottom: 8px;
}

.reset-button {
    padding: 14px 36px;
    background: var(--secondary-bg);
    color: var(--text-light);
    border: 2px solid var(--accent-color);
    border-radius: 10px;
    font-size: 1.1rem;
    font-weight: bold;
    cursor: pointer;
    transition: all 0.3s ease;
    margin: 20px auto;
    display: block;
}

.reset-button:hover {
    background: var(--accent-color);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px var(--shadow);
}

.reset-button.hidden {
    display: none;
}

footer {
    text-align: center;
    padding: 30px 0;
    margin-top: 40px;
    border-top: 2px solid var(--border-color);
    opacity: 0.7;
}

@media (max-width: 768px) {
    .app-title {
        font-size: 1.8rem;
    }

    header {
        flex-direction: column;
        gap: 15px;
    }

    .spread-buttons {
        flex-direction: column;
    }

    .spread-btn {
        width: 100%;
    }

    .card-container {
        width: 110px;
        height: 190px;
    }

    .card-spread.celtic-spread {
        grid-template-columns: repeat(2, 1fr);
        gap: 20px;
    }

    .card-detail-content {
        padding: 25px;
    }

    .card-detail-content h3 {
        font-size: 1.5rem;
    }
}

@media (max-width: 480px) {
    .app-container {
        padding: 15px;
    }

    .card-container {
        width: 90px;
        height: 155px;
    }

    .card-title {
        font-size: 0.7rem;
    }

    .draw-button {
        padding: 12px 32px;
        font-size: 1.1rem;
    }
}

.hidden {
    display: none;
}