/* ================================================
   별의타로 - Cosmic Design System
   ================================================ */
:root {
    /* Cosmic palette */
    --bg-deep: #050714;
    --bg-space: #0b0e24;
    --bg-nebula: #0f1133;
    --bg-glass: rgba(15, 20, 60, 0.55);
    --bg-glass-hover: rgba(25, 35, 80, 0.6);

    --color-star: #e8eaff;
    --color-star-bright: #ffffff;
    --color-nebula-cyan: #4dd4e6;
    --color-nebula-teal: #2dd4bf;
    --color-nebula-blue: #60a5fa;
    --color-nebula-pink: #c084fc;
    --color-nebula-rose: #f472b6;
    --color-cosmic-indigo: #818cf8;
    --color-cosmic-violet: #a78bfa;
    --color-accent: var(--color-nebula-cyan);
    --color-danger: #fb7185;

    --text-primary: #e0e4f8;
    --text-secondary: rgba(224, 228, 248, 0.6);
    --text-muted: rgba(224, 228, 248, 0.35);
    --text-glow: var(--color-nebula-cyan);

    --border-subtle: rgba(78, 212, 230, 0.12);
    --border-active: rgba(78, 212, 230, 0.4);
    --shadow-cosmic: 0 0 30px rgba(78, 212, 230, 0.1);

    /* Typography */
    --font-display: 'Cinzel Decorative', serif;
    --font-serif: 'Noto Serif KR', serif;
    --font-sans: 'Noto Sans KR', sans-serif;

    /* Spacing */
    --space-xs: 0.25rem;
    --space-sm: 0.5rem;
    --space-md: 1rem;
    --space-lg: 1.5rem;
    --space-xl: 2rem;
    --space-2xl: 3rem;
    --space-3xl: 4rem;

    /* Radius */
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 20px;
    --radius-xl: 28px;

    /* Transition */
    --transition-fast: 0.2s ease;
    --transition-normal: 0.4s ease;
    --transition-slow: 0.8s ease;
}

/* ===== Reset ===== */
*,
*::before,
*::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    font-size: 16px;
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-sans);
    background: var(--bg-deep);
    color: var(--text-primary);
    min-height: 100vh;
    overflow-x: hidden;
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
}

/* ===== Nebula Background ===== */
#nebula-bg {
    position: fixed;
    inset: 0;
    z-index: 0;
    pointer-events: none;
    background:
        radial-gradient(ellipse 80% 50% at 20% 80%, rgba(77, 212, 230, 0.06) 0%, transparent 60%),
        radial-gradient(ellipse 60% 40% at 80% 20%, rgba(192, 132, 252, 0.05) 0%, transparent 55%),
        radial-gradient(ellipse 70% 50% at 50% 50%, rgba(96, 165, 250, 0.04) 0%, transparent 60%),
        radial-gradient(ellipse 50% 30% at 70% 70%, rgba(244, 114, 182, 0.03) 0%, transparent 50%);
}

/* ===== Stars ===== */
#stars-container {
    position: fixed;
    inset: 0;
    z-index: 0;
    pointer-events: none;
    overflow: hidden;
}

.star {
    position: absolute;
    width: 2px;
    height: 2px;
    background: var(--color-star);
    border-radius: 50%;
    animation: twinkle var(--duration, 3s) ease-in-out infinite;
    animation-delay: var(--delay, 0s);
    opacity: 0;
}

.star.large {
    width: 3px;
    height: 3px;
    box-shadow: 0 0 6px 2px rgba(224, 228, 248, 0.25);
}

.star.blue {
    background: var(--color-nebula-blue);
    box-shadow: 0 0 6px 1px rgba(96, 165, 250, 0.3);
}

.star.cyan {
    background: var(--color-nebula-cyan);
    box-shadow: 0 0 6px 1px rgba(77, 212, 230, 0.3);
}

@keyframes twinkle {

    0%,
    100% {
        opacity: 0.05
    }

    50% {
        opacity: var(--max-opacity, 0.8)
    }
}

.shooting-star {
    position: absolute;
    width: 100px;
    height: 1.5px;
    background: linear-gradient(90deg, transparent, rgba(77, 212, 230, 0.4), rgba(224, 228, 248, 0.9));
    animation: shoot 1.8s ease-out forwards;
    transform: rotate(35deg);
    opacity: 0;
    border-radius: 1px;
}

@keyframes shoot {
    0% {
        transform: translateX(0) translateY(0) rotate(35deg);
        opacity: 1;
    }

    100% {
        transform: translateX(500px) translateY(350px) rotate(35deg);
        opacity: 0;
    }
}

/* ===== App ===== */
#app {
    position: relative;
    z-index: 1;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    align-items: center;
}

.divider {
    width: 120px;
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--color-nebula-cyan), transparent);
    margin: var(--space-lg) auto;
    opacity: 0.5;
}

/* ===== Landing ===== */
.landing {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: var(--space-xl);
    text-align: center;
    animation: fadeIn 1.5s ease;
}

.landing__cosmos {
    position: relative;
    width: 130px;
    height: 130px;
    margin-bottom: var(--space-2xl);
}

.landing__planet {
    width: 100px;
    height: 100px;
    border-radius: 50%;
    position: absolute;
    top: 15px;
    left: 15px;
    background: radial-gradient(circle at 30% 30%, #3b4a8a, #1a2456, #0b1035);
    box-shadow: 0 0 50px rgba(77, 212, 230, 0.2), 0 0 100px rgba(96, 165, 250, 0.1),
        inset -8px -8px 16px rgba(0, 0, 0, 0.5), inset 3px 3px 8px rgba(96, 165, 250, 0.15);
    animation: float 7s ease-in-out infinite;
}

.landing__ring {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%) rotateX(75deg);
    width: 150px;
    height: 150px;
    border-radius: 50%;
    border: 1.5px solid rgba(77, 212, 230, 0.25);
    box-shadow: 0 0 15px rgba(77, 212, 230, 0.1);
    animation: float 7s ease-in-out infinite;
}

.landing__ring::after {
    content: '';
    position: absolute;
    inset: -8px;
    border-radius: 50%;
    border: 1px solid rgba(192, 132, 252, 0.12);
}

@keyframes float {

    0%,
    100% {
        transform: translate(-50%, -50%) rotateX(75deg) translateY(0)
    }

    50% {
        transform: translate(-50%, -50%) rotateX(75deg) translateY(-12px)
    }
}

.landing__planet {
    animation: floatPlanet 7s ease-in-out infinite;
}

@keyframes floatPlanet {

    0%,
    100% {
        transform: translateY(0)
    }

    50% {
        transform: translateY(-12px)
    }
}

.landing__title {
    font-family: var(--font-display);
    font-size: clamp(2rem, 6vw, 3.5rem);
    color: var(--color-star-bright);
    margin-bottom: var(--space-sm);
    letter-spacing: 0.12em;
    text-shadow: 0 0 30px rgba(77, 212, 230, 0.3), 0 0 60px rgba(96, 165, 250, 0.15);
}

.landing__subtitle {
    font-family: var(--font-serif);
    font-size: clamp(0.9rem, 2.5vw, 1.12rem);
    color: var(--text-secondary);
    max-width: 460px;
    margin-bottom: var(--space-3xl);
    line-height: 1.9;
}

/* Spread buttons */
.spread-selection {
    display: flex;
    flex-direction: column;
    gap: var(--space-lg);
    width: 100%;
    max-width: 420px;
}

.spread-btn {
    position: relative;
    display: flex;
    align-items: center;
    gap: var(--space-lg);
    padding: var(--space-lg) var(--space-xl);
    background: var(--bg-glass);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all var(--transition-normal);
    text-align: left;
    overflow: hidden;
}

.spread-btn::before {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, rgba(77, 212, 230, 0.08), rgba(96, 165, 250, 0.04));
    opacity: 0;
    transition: opacity var(--transition-normal);
}

.spread-btn:hover {
    border-color: var(--border-active);
    transform: translateY(-3px);
    box-shadow: 0 8px 32px rgba(77, 212, 230, 0.12);
}

.spread-btn:hover::before {
    opacity: 1;
}

.spread-btn__icon {
    position: relative;
    z-index: 1;
    font-size: 2rem;
    flex-shrink: 0;
    width: 50px;
    text-align: center;
}

.spread-btn__info {
    position: relative;
    z-index: 1;
    flex: 1;
}

.spread-btn__title {
    font-family: var(--font-serif);
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--color-star);
    margin-bottom: 2px;
}

.spread-btn__desc {
    font-size: 0.82rem;
    color: var(--text-secondary);
}

.spread-btn__count {
    position: relative;
    z-index: 1;
    font-family: var(--font-display);
    font-size: 0.8rem;
    color: var(--color-nebula-cyan);
    opacity: 0.8;
}

/* ===== Question Screen ===== */
.question-screen {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: var(--space-xl);
    text-align: center;
    animation: fadeIn 0.8s ease;
}

.question-screen__title {
    font-family: var(--font-serif);
    font-size: clamp(1.3rem, 3.5vw, 1.8rem);
    color: var(--color-star);
    margin-bottom: var(--space-sm);
}

.question-screen__subtitle {
    font-size: 0.9rem;
    color: var(--text-secondary);
    margin-bottom: var(--space-2xl);
}

.question-input-wrap {
    position: relative;
    width: 100%;
    max-width: 480px;
    margin-bottom: var(--space-2xl);
}

.question-input {
    width: 100%;
    padding: var(--space-lg);
    background: var(--bg-glass);
    backdrop-filter: blur(12px);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-md);
    color: var(--text-primary);
    font-family: var(--font-sans);
    font-size: 1rem;
    resize: vertical;
    min-height: 80px;
    transition: border-color var(--transition-fast);
}

.question-input:focus {
    outline: none;
    border-color: var(--color-nebula-cyan);
    box-shadow: 0 0 20px rgba(77, 212, 230, 0.12);
}

.question-input::placeholder {
    color: var(--text-muted);
}

.btn-primary {
    display: inline-flex;
    align-items: center;
    gap: var(--space-sm);
    padding: var(--space-md) var(--space-2xl);
    background: linear-gradient(135deg, rgba(77, 212, 230, 0.2), rgba(96, 165, 250, 0.25));
    border: 1px solid rgba(77, 212, 230, 0.35);
    border-radius: var(--radius-xl);
    color: var(--color-star);
    font-family: var(--font-serif);
    font-size: 1.05rem;
    cursor: pointer;
    transition: all var(--transition-normal);
    box-shadow: 0 4px 20px rgba(77, 212, 230, 0.15);
    backdrop-filter: blur(8px);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 32px rgba(77, 212, 230, 0.25);
    border-color: var(--color-nebula-cyan);
}

.btn-secondary {
    display: inline-flex;
    align-items: center;
    gap: var(--space-sm);
    padding: var(--space-sm) var(--space-lg);
    background: transparent;
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-xl);
    color: var(--text-secondary);
    font-family: var(--font-sans);
    font-size: 0.85rem;
    cursor: pointer;
    transition: all var(--transition-fast);
}

.btn-secondary:hover {
    border-color: var(--color-nebula-cyan);
    color: var(--color-nebula-cyan);
}

/* ===== Card Selection ===== */
.card-selection {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: var(--space-2xl) var(--space-md);
    animation: fadeIn 0.8s ease;
}

.card-selection__header {
    text-align: center;
    margin-bottom: var(--space-2xl);
}

.card-selection__title {
    font-family: var(--font-serif);
    font-size: clamp(1.2rem, 3vw, 1.6rem);
    color: var(--color-star);
    margin-bottom: var(--space-xs);
}

.card-selection__progress {
    font-size: 0.9rem;
    color: var(--color-nebula-cyan);
}

.card-deck {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 6px;
    max-width: 900px;
    padding: var(--space-xl) 0;
    perspective: 1200px;
}

.card-slot {
    width: 60px;
    height: 100px;
    cursor: pointer;
    transition: transform var(--transition-normal);
}

.card-slot:hover {
    transform: translateY(-15px) scale(1.08);
    z-index: 10;
}

.card-slot.selected {
    transform: translateY(-25px) scale(1.12);
    z-index: 20;
}

.card-slot.selected .card-back {
    border-color: var(--color-nebula-cyan);
    box-shadow: 0 0 20px rgba(77, 212, 230, 0.3), 0 8px 24px rgba(0, 0, 0, 0.3);
}

.card-slot.disabled {
    opacity: 0.25;
    pointer-events: none;
    transform: scale(0.95);
}

.card-back {
    width: 100%;
    height: 100%;
    border-radius: var(--radius-sm);
    background: url('./img/Waite–Smith_Tarot_Roses_and_Lilies_cropped.jpg') center/cover no-repeat;
    border: 1px solid rgba(77, 212, 230, 0.3);
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.4);
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
    position: relative;
}

.card-back::before {
    content: '';
    position: absolute;
    inset: 4px;
    border: 1px solid rgba(77, 212, 230, 0.1);
    border-radius: 4px;
}

.card-back::after {
    content: '';
    display: none;
}

/* ===== Reading Result ===== */
.reading {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: var(--space-2xl) var(--space-md);
    animation: fadeIn 0.8s ease;
    max-width: 1100px;
    margin: 0 auto;
    width: 100%;
}

.reading__title {
    font-family: var(--font-serif);
    font-size: clamp(1.3rem, 3.5vw, 1.8rem);
    color: var(--color-star);
    text-align: center;
    margin-bottom: var(--space-xs);
}

.reading__question {
    text-align: center;
    font-size: 0.92rem;
    color: var(--text-secondary);
    font-style: italic;
    margin-bottom: var(--space-lg);
    max-width: 500px;
}

.reading__cards {
    display: flex;
    justify-content: center;
    gap: var(--space-xl);
    flex-wrap: wrap;
    margin-bottom: var(--space-2xl);
    width: 100%;
}

.reading-card {
    width: 140px;
    perspective: 1000px;
    cursor: pointer;
}

.reading-card__inner {
    position: relative;
    width: 140px;
    height: 220px;
    transition: transform 0.8s cubic-bezier(0.4, 0, 0.2, 1);
    transform-style: preserve-3d;
}

.reading-card__inner.flipped {
    transform: rotateY(180deg);
}

.reading-card__front,
.reading-card__back {
    position: absolute;
    width: 100%;
    height: 100%;
    backface-visibility: hidden;
    border-radius: var(--radius-md);
    overflow: hidden;
}

.reading-card__back {
    background: url('./img/Waite–Smith_Tarot_Roses_and_Lilies_cropped.jpg') center/cover no-repeat;
    border: 2px solid rgba(77, 212, 230, 0.4);
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.4);
}

.reading-card__back-design {
    display: none;
}

.reading-card__front {
    transform: rotateY(180deg);
    background: linear-gradient(145deg, #0c1238, #141a4a);
    border: 2px solid rgba(77, 212, 230, 0.3);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: var(--space-sm);
    box-shadow: 0 4px 24px rgba(77, 212, 230, 0.12);
}

.reading-card__image-wrap {
    width: 100%;
    height: 165px;
    border-radius: 4px;
    overflow: hidden;
    margin-bottom: var(--space-xs);
    border: 1px solid rgba(77, 212, 230, 0.15);
}

.reading-card__img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
}

.reading-card__image {
    width: 100%;
    height: 140px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 3.5rem;
    margin-bottom: var(--space-xs);
}

.reading-card__name {
    font-family: var(--font-serif);
    font-size: 0.72rem;
    font-weight: 600;
    color: var(--color-star);
    text-align: center;
    line-height: 1.3;
}

.reading-card__reversed {
    font-size: 0.65rem;
    color: var(--color-danger);
    margin-top: 2px;
}

.reading-card__position {
    font-size: 0.75rem;
    color: var(--color-nebula-cyan);
    margin-bottom: var(--space-sm);
    text-align: center;
    font-family: var(--font-serif);
}

.reading-card.reversed .reading-card__front {
    border-color: rgba(251, 113, 133, 0.35);
}

/* Interpretations */
.reading__interpretations {
    width: 100%;
    display: flex;
    flex-direction: column;
    gap: var(--space-lg);
}

.interpretation-card {
    background: var(--bg-glass);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-md);
    padding: var(--space-xl);
    animation: slideUp 0.6s ease forwards;
    opacity: 0;
}

.interpretation-card:nth-child(1) {
    animation-delay: 0.2s
}

.interpretation-card:nth-child(2) {
    animation-delay: 0.4s
}

.interpretation-card:nth-child(3) {
    animation-delay: 0.6s
}

.interpretation-card:nth-child(4) {
    animation-delay: 0.8s
}

.interpretation-card:nth-child(5) {
    animation-delay: 1.0s
}

.interpretation-card:nth-child(6) {
    animation-delay: 1.2s
}

.interpretation-card:nth-child(7) {
    animation-delay: 1.4s
}

.interpretation-card:nth-child(8) {
    animation-delay: 1.6s
}

.interpretation-card:nth-child(9) {
    animation-delay: 1.8s
}

.interpretation-card:nth-child(10) {
    animation-delay: 2.0s
}

@keyframes slideUp {
    from {
        opacity: 0;
        transform: translateY(20px)
    }

    to {
        opacity: 1;
        transform: translateY(0)
    }
}

.interpretation-card__header {
    display: flex;
    align-items: center;
    gap: var(--space-md);
    margin-bottom: var(--space-md);
    flex-wrap: wrap;
}

.interpretation-card__position {
    font-family: var(--font-serif);
    font-size: 0.8rem;
    color: var(--color-nebula-cyan);
    letter-spacing: 0.05em;
}

.interpretation-card__name {
    font-family: var(--font-serif);
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--color-star);
}

.interpretation-card__reversed-badge {
    font-size: 0.7rem;
    padding: 2px 8px;
    border-radius: 99px;
    background: rgba(251, 113, 133, 0.12);
    color: var(--color-danger);
    border: 1px solid rgba(251, 113, 133, 0.25);
}

.interpretation-card__keywords {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-xs);
    margin-bottom: var(--space-md);
}

.keyword-tag {
    font-size: 0.72rem;
    padding: 3px 10px;
    border-radius: 99px;
    background: rgba(77, 212, 230, 0.08);
    color: var(--color-nebula-cyan);
    border: 1px solid rgba(77, 212, 230, 0.15);
}

.interpretation-card__meaning {
    font-size: 0.92rem;
    color: var(--text-primary);
    line-height: 1.8;
    font-family: var(--font-serif);
}

/* Summary */
.reading__summary {
    width: 100%;
    background: linear-gradient(135deg, rgba(77, 212, 230, 0.06), rgba(96, 165, 250, 0.04));
    backdrop-filter: blur(16px);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-lg);
    padding: var(--space-2xl);
    margin-top: var(--space-xl);
    animation: slideUp 0.8s ease forwards;
    animation-delay: 1s;
    opacity: 0;
}

.reading__summary-title {
    font-family: var(--font-serif);
    font-size: 1.2rem;
    color: var(--color-star);
    margin-bottom: var(--space-md);
    text-align: center;
}

.reading__summary-text {
    font-size: 0.95rem;
    color: var(--text-primary);
    line-height: 2;
    font-family: var(--font-serif);
}

.reading__actions {
    display: flex;
    gap: var(--space-md);
    margin-top: var(--space-2xl);
    flex-wrap: wrap;
    justify-content: center;
}

/* ===== Animations ===== */
@keyframes fadeIn {
    from {
        opacity: 0
    }

    to {
        opacity: 1
    }
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px)
    }

    to {
        opacity: 1;
        transform: translateY(0)
    }
}

.page-enter {
    animation: fadeInUp 0.6s ease forwards;
}

.page-exit {
    animation: fadeOut 0.3s ease forwards;
}

@keyframes fadeOut {
    from {
        opacity: 1
    }

    to {
        opacity: 0
    }
}

.shimmer-text {
    background: linear-gradient(90deg, var(--color-nebula-blue), var(--color-nebula-cyan), var(--color-nebula-blue));
    background-size: 200% auto;
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    animation: shimmer 3s linear infinite;
}

@keyframes shimmer {
    0% {
        background-position: -200% center
    }

    100% {
        background-position: 200% center
    }
}

.loading-orb {
    width: 60px;
    height: 60px;
    border-radius: 50%;
    background: radial-gradient(circle, var(--color-nebula-cyan), transparent);
    animation: pulse 1.5s ease-in-out infinite;
    margin: var(--space-2xl) auto;
}

@keyframes pulse {

    0%,
    100% {
        transform: scale(0.8);
        opacity: 0.4
    }

    50% {
        transform: scale(1.2);
        opacity: 1
    }
}

/* ===== Responsive ===== */
@media (max-width:768px) {
    .card-deck {
        gap: 4px;
    }

    .card-slot {
        width: 46px;
        height: 76px;
    }

    .reading__cards {
        gap: var(--space-md);
    }

    .reading-card {
        width: 110px;
    }

    .reading-card__inner {
        width: 110px;
        height: 175px;
    }

    .spread-selection {
        max-width: 100%;
    }

    .interpretation-card {
        padding: var(--space-lg);
    }
}

@media (max-width:480px) {
    .card-slot {
        width: 38px;
        height: 62px;
    }

    .reading-card {
        width: 90px;
    }

    .reading-card__inner {
        width: 90px;
        height: 145px;
    }

    .reading-card__image {
        font-size: 2.5rem;
        height: 90px;
    }

    .reading-card__name {
        font-size: 0.62rem;
    }

    .landing__cosmos {
        width: 100px;
        height: 100px;
    }

    .landing__planet {
        width: 75px;
        height: 75px;
        top: 12px;
        left: 12px;
    }

    .landing__ring {
        width: 110px;
        height: 110px;
    }
}

/* Scrollbar */
::-webkit-scrollbar {
    width: 6px;
}

::-webkit-scrollbar-track {
    background: var(--bg-deep);
}

::-webkit-scrollbar-thumb {
    background: rgba(77, 212, 230, 0.2);
    border-radius: 3px;
}

::-webkit-scrollbar-thumb:hover {
    background: rgba(77, 212, 230, 0.4);
}