/* ============================================
   Seqvance - Design System & Styles
   ============================================ */

/* CSS Variables - Design Tokens */
:root {
    /* Primary Colors - Dark Cyan to Muted Purple Gradient */
    --color-primary-dark: #0a4d5c;
    --color-primary: #0d6b7a;
    --color-primary-light: #1a8a9a;
    --color-secondary-dark: #4a4565;
    --color-secondary: #6b5b7a;
    --color-secondary-light: #8a7a9a;

    /* Gradient */
    --gradient-main: linear-gradient(135deg, var(--color-primary-dark) 0%, var(--color-secondary) 100%);
    --gradient-glass: linear-gradient(135deg, rgba(255, 255, 255, 0.1) 0%, rgba(255, 255, 255, 0.05) 100%);
    --gradient-glow: linear-gradient(135deg, rgba(26, 138, 154, 0.5) 0%, rgba(138, 122, 154, 0.5) 100%);

    /* Player Colors */
    --player-red: #e74c3c;
    --player-red-glow: rgba(231, 76, 60, 0.5);
    --player-blue: #3498db;
    --player-blue-glow: rgba(52, 152, 219, 0.5);
    --player-green: #2ecc71;
    --player-green-glow: rgba(46, 204, 113, 0.5);
    --player-yellow: #f1c40f;
    --player-yellow-glow: rgba(241, 196, 15, 0.5);

    /* UI Colors */
    --color-bg: #0a0f14;
    --color-surface: rgba(255, 255, 255, 0.08);
    --color-surface-hover: rgba(255, 255, 255, 0.12);
    --color-border: rgba(255, 255, 255, 0.15);
    --color-border-strong: rgba(255, 255, 255, 0.25);
    --color-text: #ffffff;
    --color-text-muted: rgba(255, 255, 255, 0.7);
    --color-text-dim: rgba(255, 255, 255, 0.5);

    /* Semantic Colors */
    --color-damage: #ff6b6b;
    --color-heal: #51cf66;
    --color-shield: #339af0;
    --color-special: #cc5de8;

    /* Spacing */
    --space-xs: 4px;
    --space-sm: 8px;
    --space-md: 16px;
    --space-lg: 24px;
    --space-xl: 32px;
    --space-2xl: 48px;

    /* Border Radius */
    --radius-sm: 6px;
    --radius-md: 12px;
    --radius-lg: 20px;
    --radius-xl: 28px;

    /* Shadows */
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.3);
    --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.4);
    --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.5);
    --shadow-glow: 0 0 20px rgba(26, 138, 154, 0.4);
    --shadow-inset: inset 0 2px 4px rgba(0, 0, 0, 0.3);

    /* Glassmorphism */
    --glass-bg: rgba(255, 255, 255, 0.08);
    --glass-bg-strong: rgba(255, 255, 255, 0.12);
    --glass-blur: blur(16px);
    --glass-border: 1px solid rgba(255, 255, 255, 0.15);

    /* Typography */
    --font-primary: 'Inter', 'Noto Sans JP', sans-serif;
    --font-size-xs: 0.75rem;
    --font-size-sm: 0.875rem;
    --font-size-md: 1rem;
    --font-size-lg: 1.25rem;
    --font-size-xl: 1.5rem;
    --font-size-2xl: 2rem;
    --font-size-3xl: 3rem;

    /* Transitions */
    --transition-fast: 150ms ease;
    --transition-normal: 250ms ease;
    --transition-slow: 400ms ease;

    /* Z-index */
    --z-base: 1;
    --z-slot: 10;
    --z-card: 20;
    --z-overlay: 100;
    --z-modal: 200;
}

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

html {
    font-size: 16px;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    font-family: var(--font-primary);
    background: var(--gradient-main);
    color: var(--color-text);
    min-height: 100vh;
    overflow-x: hidden;
    line-height: 1.5;
}

/* Animated Background */
body::before {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background:
        radial-gradient(ellipse at 20% 20%, rgba(26, 138, 154, 0.15) 0%, transparent 50%),
        radial-gradient(ellipse at 80% 80%, rgba(107, 91, 122, 0.15) 0%, transparent 50%),
        radial-gradient(ellipse at 50% 50%, rgba(138, 122, 154, 0.1) 0%, transparent 70%);
    pointer-events: none;
    z-index: 0;
}

/* ============================================
   Game Container Layout
   ============================================ */
.game-container {
    position: relative;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    padding: var(--space-lg);
    z-index: var(--z-base);
}

/* ============================================
   Header
   ============================================ */
.game-header {
    text-align: center;
    padding: var(--space-md) 0;
    margin-bottom: var(--space-md);
}

.game-title {
    font-size: var(--font-size-2xl);
    font-weight: 800;
    letter-spacing: 0.1em;
    background: linear-gradient(135deg, #fff 0%, rgba(255, 255, 255, 0.7) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    text-shadow: 0 0 40px rgba(255, 255, 255, 0.3);
}

.game-subtitle {
    font-size: var(--font-size-sm);
    color: var(--color-text-muted);
    letter-spacing: 0.2em;
    text-transform: uppercase;
    margin-top: var(--space-xs);
}

/* ============================================
   Player HP Displays (Vertical Stacked)
   ============================================ */
.players-container {
    position: fixed;
    top: var(--space-lg);
    left: var(--space-lg);
    display: flex;
    flex-direction: column;
    gap: var(--space-sm);
    z-index: var(--z-card);
    align-items: flex-start;
    padding: var(--space-md);
    padding-right: 60px;
    /* 十分な余白を持たせて見切れを防止 */
    overflow: visible;
    /* 見切れを確実に防止 */
}

.player-hp {
    display: flex;
    flex-direction: column;
    /* 要素を縦に並べる（バッジ対応） */
    align-items: stretch;
    gap: var(--space-xs);
    padding: var(--space-md);
    background: var(--glass-bg);
    backdrop-filter: var(--glass-blur);
    border: var(--glass-border);
    border-radius: var(--radius-lg);
    box-shadow: 0 8px 16px rgba(0, 0, 0, 0.3), inset 0 1px 1px rgba(255, 255, 255, 0.1);
    width: 240px;
    /* 立体的なデザインのための影とグラデーション */
    background: linear-gradient(135deg, rgba(255, 255, 255, 0.12) 0%, rgba(255, 255, 255, 0.05) 100%);
    backdrop-filter: var(--glass-blur);
    transition: transform var(--transition-normal), box-shadow var(--transition-normal), opacity var(--transition-normal), background-color var(--transition-normal), border-color var(--transition-normal);
}

.player-hp:hover {
    transform: translateX(8px);
    /* 横に少しスライド */
}

.player-hp--red {
    border-color: var(--player-red-glow);
    box-shadow: 0 8px 16px rgba(0, 0, 0, 0.3), 0 0 10px var(--player-red-glow);
}

.player-hp--blue {
    border-color: var(--player-blue-glow);
    box-shadow: 0 8px 16px rgba(0, 0, 0, 0.3), 0 0 10px var(--player-blue-glow);
}

.player-hp--green {
    border-color: var(--player-green-glow);
    box-shadow: 0 8px 16px rgba(0, 0, 0, 0.3), 0 0 10px var(--player-green-glow);
}

.player-hp--yellow {
    border-color: var(--player-yellow-glow);
    box-shadow: 0 8px 16px rgba(0, 0, 0, 0.3), 0 0 10px var(--player-yellow-glow);
}

.player-hp__header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 4px;
}

.player-hp__you-badge {
    display: none;
    /* デフォルト非表示 */
    font-size: 0.6rem;
    font-weight: 800;
    padding: 2px 6px;
    background: var(--color-primary-light);
    color: white;
    border-radius: 4px;
    letter-spacing: 0.05em;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.2);
}

.player-hp.is-me .player-hp__you-badge {
    display: block;
    background: var(--player-green);
    /* 明るい緑 */
    color: #0c331a;
    /* 濃い緑のテキストでコントラストを稼ぐ */
    font-weight: 900;
}

.player-hp.is-me {
    border-color: var(--player-green);
    border-width: 3px;
    background: linear-gradient(135deg, rgba(46, 204, 113, 0.25) 0%, rgba(46, 204, 113, 0.1) 100%);
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.5), 0 0 15px rgba(46, 204, 113, 0.3);
}

.player-hp__icon {
    font-size: 1.5rem;
}

.player-hp__info {
    display: flex;
    flex-direction: column;
    gap: 2px;
}

.player-hp__name {
    font-size: var(--font-size-sm);
    font-weight: 600;
}

.player-hp__kit {
    font-size: var(--font-size-xs);
    color: var(--color-text-muted);
}

.player-hp__bar-container {
    width: 100%;
    height: 10px;
    background: rgba(0, 0, 0, 0.4);
    border-radius: 5px;
    overflow: hidden;
    margin: var(--space-xs) 0;
}

.player-hp__bar {
    height: 100%;
    width: var(--hp-percent, 100%);
    background: linear-gradient(90deg, var(--color-heal) 0%, #69db7c 100%);
    border-radius: 4px;
    transition: width var(--transition-slow);
}

.player-hp__value {
    font-size: var(--font-size-lg);
    font-weight: 700;
    min-width: 48px;
    text-align: right;
}

.player-hp.dead {
    opacity: 0.4;
    filter: grayscale(1);
}

.player-hp.current-turn {
    background: linear-gradient(135deg, rgba(255, 255, 255, 0.25) 0%, rgba(255, 255, 255, 0.15) 100%);
    transform: translateX(20px);
    /* 少し右にずらし、強調 */
    border-color: rgba(255, 255, 255, 0.5);
    box-shadow: 0 12px 32px rgba(0, 0, 0, 0.5), 0 0 20px rgba(255, 255, 255, 0.1);
}

/* ============================================
   Main Game Area
   ============================================ */
.game-main {
    flex: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: var(--space-2xl) 0;
    gap: var(--space-lg);
}

/* Game Info Panel */
.game-info-panel {
    display: flex;
    gap: var(--space-xl);
    padding: var(--space-md) var(--space-xl);
    background: var(--glass-bg);
    backdrop-filter: var(--glass-blur);
    border: var(--glass-border);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-md);
}

.round-indicator,
.phase-indicator,
.turn-indicator {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--space-xs);
}

.round-label,
.phase-label,
.turn-label {
    font-size: var(--font-size-xs);
    color: var(--color-text-dim);
    text-transform: uppercase;
    letter-spacing: 0.1em;
}

.round-number {
    font-size: var(--font-size-xl);
    font-weight: 700;
}

.phase-name {
    font-size: var(--font-size-md);
    font-weight: 600;
    color: var(--color-primary-light);
}

.turn-player {
    font-size: var(--font-size-md);
    font-weight: 600;
    padding: 2px 12px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 12px;
    border: 1px solid rgba(255, 255, 255, 0.1);
}

/* ============================================
   Timeline (9 Slots)
   ============================================ */
.timeline {
    display: flex;
    gap: var(--space-sm);
    padding: var(--space-lg);
    background: var(--glass-bg);
    backdrop-filter: var(--glass-blur);
    border: var(--glass-border);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-lg), var(--shadow-glow);
    max-width: 95vw;
    overflow-x: auto;
    justify-content: center;
}

.slot {
    position: relative;
    width: 90px;
    height: 130px;
    background: var(--glass-bg);
    border: 2px solid var(--color-border);
    border-radius: var(--radius-md);
    display: flex;
    flex-direction: column;
    align-items: center;
    cursor: pointer;
    transition: all var(--transition-normal);
    overflow: hidden;
    flex-shrink: 0;
}

.slot::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: var(--gradient-glass);
    opacity: 0;
    transition: opacity var(--transition-normal);
}

.slot:hover {
    border-color: var(--color-border-strong);
    transform: translateY(-4px);
    box-shadow: var(--shadow-md);
}

.slot:hover::before {
    opacity: 1;
}

.slot.occupied {
    cursor: default;
}

.slot.occupied:hover {
    transform: none;
}

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

.slot.executing {
    animation: slot-execute 0.8s ease-out;
    border-color: var(--color-primary-light);
    box-shadow: 0 0 30px var(--color-primary-light);
}

.slot__number {
    position: absolute;
    top: var(--space-xs);
    left: 50%;
    transform: translateX(-50%);
    font-size: var(--font-size-xs);
    font-weight: 600;
    color: var(--color-text-dim);
    background: rgba(0, 0, 0, 0.3);
    padding: 2px 8px;
    border-radius: 10px;
    z-index: 2;
}

.slot__content {
    flex: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: var(--space-md) var(--space-xs);
    padding-top: var(--space-xl);
    width: 100%;
    text-align: center;
}

/* Slot Card (when a card is placed) */
.slot-card {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--space-xs);
    width: 100%;
}

.slot-card__player {
    font-size: 1.2rem;
}

.slot-card__skill {
    font-size: var(--font-size-xs);
    font-weight: 500;
    color: var(--color-text);
    line-height: 1.3;
}

.slot-card__target {
    font-size: var(--font-size-xs);
    color: var(--color-text-muted);
}

/* ============================================
   Game Log
   ============================================ */
.game-log {
    width: 100%;
    max-width: 900px;
    max-height: 150px;
    background: var(--glass-bg);
    backdrop-filter: var(--glass-blur);
    border: var(--glass-border);
    border-radius: var(--radius-md);
    overflow: hidden;
}

.game-log__header {
    padding: var(--space-sm) var(--space-md);
    background: rgba(0, 0, 0, 0.2);
    font-size: var(--font-size-sm);
    font-weight: 600;
    color: var(--color-text-muted);
    border-bottom: var(--glass-border);
}

.game-log__content {
    padding: var(--space-sm) var(--space-md);
    max-height: 100px;
    overflow-y: auto;
    display: flex;
    flex-direction: column;
    gap: var(--space-xs);
}

.log-entry {
    font-size: var(--font-size-sm);
    padding: var(--space-xs) 0;
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

.log-entry:last-child {
    border-bottom: none;
}

.log-entry--system {
    color: var(--color-text-muted);
}

.log-entry--damage {
    color: var(--color-damage);
}

.log-entry--heal {
    color: var(--color-heal);
}

.log-entry--shield {
    color: var(--color-shield);
}

.log-entry--special {
    color: var(--color-special);
}

/* ============================================
   Hand Area
   ============================================ */
.hand-area {
    position: fixed;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 100%;
    max-width: 800px;
    padding: var(--space-md);
    background: linear-gradient(to top, rgba(10, 15, 20, 0.95) 0%, rgba(10, 15, 20, 0.8) 100%);
    backdrop-filter: var(--glass-blur);
    border-top: var(--glass-border);
    border-radius: var(--radius-xl) var(--radius-xl) 0 0;
    z-index: var(--z-card);
}

.hand-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--space-md);
    padding: 0 var(--space-sm);
}

.hand-title {
    font-size: var(--font-size-sm);
    font-weight: 600;
    color: var(--color-text-muted);
    text-transform: uppercase;
    letter-spacing: 0.1em;
}

.hand-kit {
    font-size: var(--font-size-sm);
    color: var(--color-primary-light);
}

.hand-cards {
    display: flex;
    justify-content: center;
    gap: var(--space-md);
    flex-wrap: wrap;
}

/* ============================================
   Skill Cards
   ============================================ */
.skill-card {
    position: relative;
    width: 140px;
    padding: var(--space-md);
    background: var(--glass-bg-strong);
    border: 2px solid var(--color-border);
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all var(--transition-normal);
    text-align: center;
}

.skill-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: var(--gradient-glass);
    border-radius: var(--radius-md);
    opacity: 0;
    transition: opacity var(--transition-normal);
}

.skill-card:hover {
    border-color: var(--color-primary-light);
    transform: translateY(-8px) scale(1.05);
    box-shadow: 0 12px 32px rgba(0, 0, 0, 0.6), 0 0 25px rgba(26, 138, 154, 0.5);
    z-index: 100;
}

.skill-card:hover::before {
    opacity: 1;
}

.skill-card.selected {
    border-color: var(--color-primary-light);
    box-shadow: 0 0 20px var(--color-primary-light);
}

.skill-card.disabled {
    opacity: 0.4;
    cursor: not-allowed;
}

.skill-card.disabled:hover {
    transform: none;
    box-shadow: none;
    border-color: var(--color-border);
}

.skill-card__name {
    font-size: var(--font-size-sm);
    font-weight: 600;
    margin-bottom: var(--space-xs);
    position: relative;
    z-index: 1;
}

.skill-card__desc {
    font-size: var(--font-size-xs);
    color: var(--color-text-muted);
    margin-bottom: var(--space-sm);
    line-height: 1.4;
    position: relative;
    z-index: 1;
}

.skill-card__uses {
    display: inline-block;
    font-size: var(--font-size-xs);
    padding: 2px 8px;
    background: rgba(0, 0, 0, 0.3);
    border-radius: 10px;
    color: var(--color-text-dim);
    position: relative;
    z-index: 1;
}

.skill-card__uses.infinite {
    color: var(--color-primary-light);
}

/* ============================================
   Modal
   ============================================ */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.7);
    backdrop-filter: blur(4px);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: var(--z-modal);
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-normal);
}

.modal-overlay.active {
    opacity: 1;
    visibility: visible;
}

.modal {
    background: linear-gradient(135deg, rgba(20, 30, 40, 0.95) 0%, rgba(40, 35, 50, 0.95) 100%);
    backdrop-filter: var(--glass-blur);
    border: var(--glass-border);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-lg);
    min-width: 400px;
    max-width: 500px;
    transform: scale(0.9) translateY(20px);
    transition: transform var(--transition-normal);
}

.modal-overlay.active .modal {
    transform: scale(1) translateY(0);
}

.modal__header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--space-lg);
    border-bottom: var(--glass-border);
}

.modal__header h2 {
    font-size: var(--font-size-lg);
    font-weight: 600;
}

.modal__close {
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: transparent;
    border: none;
    color: var(--color-text-muted);
    font-size: var(--font-size-xl);
    cursor: pointer;
    border-radius: 50%;
    transition: all var(--transition-fast);
}

.modal__close:hover {
    background: rgba(255, 255, 255, 0.1);
    color: var(--color-text);
}

.modal__body {
    padding: var(--space-lg);
    display: flex;
    flex-direction: column;
    gap: var(--space-lg);
}

.modal__section h3 {
    font-size: var(--font-size-sm);
    font-weight: 600;
    color: var(--color-text-muted);
    margin-bottom: var(--space-sm);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.modal__slot-number {
    font-size: var(--font-size-2xl);
    font-weight: 700;
    color: var(--color-primary-light);
}

.skill-select,
.target-select {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-sm);
}

.skill-option,
.target-option {
    padding: var(--space-sm) var(--space-md);
    background: var(--glass-bg);
    border: 2px solid var(--color-border);
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all var(--transition-fast);
}

.skill-option:hover,
.target-option:hover {
    border-color: var(--color-border-strong);
    background: var(--glass-bg-strong);
}

.skill-option.selected,
.target-option.selected {
    border-color: var(--color-primary-light);
    background: rgba(26, 138, 154, 0.2);
}

.skill-option.disabled,
.target-option.disabled {
    opacity: 0.4;
    cursor: not-allowed;
}

.skill-option__name {
    font-size: var(--font-size-sm);
    font-weight: 700;
}

.skill-option__header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 4px;
}

.skill-option__uses {
    font-size: var(--font-size-xs);
    color: var(--color-heal);
    font-weight: 800;
}

.skill-option__desc {
    font-size: var(--font-size-xs);
    color: var(--color-text-muted);
}

.target-option {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
}

.target-option__icon {
    font-size: 1.2rem;
}

.target-option__name {
    font-size: var(--font-size-sm);
    font-weight: 500;
}

.modal__footer {
    display: flex;
    justify-content: flex-end;
    gap: var(--space-sm);
    padding: var(--space-lg);
    border-top: var(--glass-border);
}

/* ============================================
   Buttons
   ============================================ */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-sm);
    padding: var(--space-sm) var(--space-lg);
    font-family: var(--font-primary);
    font-size: var(--font-size-md);
    font-weight: 600;
    border: none;
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all var(--transition-normal);
}

.btn--primary {
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-light) 100%);
    color: white;
    box-shadow: 0 4px 12px rgba(26, 138, 154, 0.3);
}

.btn--primary:hover:not(:disabled) {
    transform: translateY(-2px);
    box-shadow: 0 6px 16px rgba(26, 138, 154, 0.4);
}

.btn--primary:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

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

.btn--secondary:hover {
    background: var(--glass-bg-strong);
    border-color: var(--color-border-strong);
}

.btn--start {
    padding: var(--space-md) var(--space-xl);
    font-size: var(--font-size-lg);
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-secondary) 100%);
    color: rgba(255, 255, 255, 0.5);
    /* 待機中は少し暗め */
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.2);
    transition: all var(--transition-normal);
}

.btn--start.ready {
    background: linear-gradient(135deg, var(--color-primary-light) 0%, var(--color-heal) 100%);
    color: white;
    box-shadow: 0 8px 24px rgba(46, 204, 113, 0.4);
    animation: pulse-button 2s infinite;
}

@keyframes pulse-button {

    0%,
    100% {
        transform: scale(1);
        box-shadow: 0 8px 24px rgba(46, 204, 113, 0.4);
    }

    50% {
        transform: scale(1.02);
        box-shadow: 0 8px 32px rgba(46, 204, 113, 0.6);
    }
}

.btn--start:hover:not(:disabled) {
    transform: translateY(-4px);
    box-shadow: 0 12px 32px rgba(26, 138, 154, 0.5);
}

/* ============================================
   Start Screen
   ============================================ */
.start-screen {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: var(--gradient-main);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: var(--z-overlay);
}

.start-screen::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background:
        radial-gradient(ellipse at 30% 20%, rgba(26, 138, 154, 0.2) 0%, transparent 50%),
        radial-gradient(ellipse at 70% 80%, rgba(107, 91, 122, 0.2) 0%, transparent 50%);
    pointer-events: none;
}

.start-screen.hidden {
    display: none;
}

.start-panel {
    position: relative;
    text-align: center;
    padding: var(--space-2xl);
    background: var(--glass-bg);
    backdrop-filter: var(--glass-blur);
    border: var(--glass-border);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-lg);
    max-width: 600px;
    width: 90%;
}

.start-title {
    font-size: var(--font-size-3xl);
    font-weight: 800;
    letter-spacing: 0.15em;
    background: linear-gradient(135deg, #fff 0%, rgba(255, 255, 255, 0.7) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: var(--space-sm);
}

.start-subtitle {
    font-size: var(--font-size-md);
    color: var(--color-text-muted);
    margin-bottom: var(--space-xl);
}

.kit-selection {
    margin-bottom: var(--space-xl);
}

.kit-selection h2 {
    font-size: var(--font-size-lg);
    font-weight: 600;
    margin-bottom: var(--space-md);
    color: var(--color-text-muted);
}

.kit-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-md);
}

.kit-card {
    padding: var(--space-md);
    background: var(--glass-bg);
    border: var(--glass-border);
    border-radius: var(--radius-md);
}

.kit-card__header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--space-sm);
}

.kit-card__player {
    font-size: var(--font-size-sm);
    font-weight: 600;
}

.kit-card__color {
    width: 16px;
    height: 16px;
    border-radius: 50%;
}

.kit-card__select {
    width: 100%;
    padding: var(--space-sm);
    background: rgba(0, 0, 0, 0.3);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
    color: var(--color-text);
    font-family: var(--font-primary);
    font-size: var(--font-size-sm);
    cursor: pointer;
}

.kit-card__select option {
    background: #1a1a2e;
    color: var(--color-text);
}

/* ============================================
   Victory Screen
   ============================================ */
.victory-screen {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.8);
    backdrop-filter: blur(8px);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: var(--z-modal);
}

.victory-screen.hidden {
    display: none;
}

.victory-panel {
    text-align: center;
    padding: var(--space-2xl);
    background: var(--glass-bg);
    backdrop-filter: var(--glass-blur);
    border: var(--glass-border);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-lg), 0 0 60px rgba(46, 204, 113, 0.3);
}

.victory-title {
    font-size: var(--font-size-3xl);
    font-weight: 800;
    color: var(--color-heal);
    margin-bottom: var(--space-md);
    text-shadow: 0 0 40px var(--color-heal);
}

.victory-winner {
    font-size: var(--font-size-xl);
    color: var(--color-text);
    margin-bottom: var(--space-xl);
}

/* ============================================
   Animations
   ============================================ */
@keyframes pulse-glow {

    0%,
    100% {
        box-shadow: var(--shadow-md), 0 0 20px currentColor;
    }

    50% {
        box-shadow: var(--shadow-md), 0 0 40px currentColor;
    }
}

@keyframes slot-execute {
    0% {
        transform: scale(1);
        box-shadow: 0 0 0 transparent;
    }

    50% {
        transform: scale(1.05);
        box-shadow: 0 0 40px var(--color-primary-light);
    }

    100% {
        transform: scale(1);
        box-shadow: 0 0 20px var(--color-primary-light);
    }
}

@keyframes card-place {
    0% {
        opacity: 0;
        transform: scale(0.8) translateY(-20px);
    }

    100% {
        opacity: 1;
        transform: scale(1) translateY(0);
    }
}

@keyframes damage-pop {
    0% {
        opacity: 0;
        transform: translateY(0) scale(0.5);
    }

    50% {
        opacity: 1;
        transform: translateY(-20px) scale(1.2);
    }

    100% {
        opacity: 0;
        transform: translateY(-40px) scale(1);
    }
}

@keyframes heal-pop {
    0% {
        opacity: 0;
        transform: translateY(0) scale(0.5);
    }

    50% {
        opacity: 1;
        transform: translateY(-20px) scale(1.2);
    }

    100% {
        opacity: 0;
        transform: translateY(-40px) scale(1);
    }
}

.card-placing {
    animation: card-place 0.4s ease-out;
}

.damage-number {
    position: absolute;
    font-size: var(--font-size-lg);
    font-weight: 700;
    color: var(--color-damage);
    text-shadow: 0 0 10px var(--color-damage);
    pointer-events: none;
    animation: damage-pop 1s ease-out forwards;
}

.heal-number {
    position: absolute;
    font-size: var(--font-size-lg);
    font-weight: 700;
    color: var(--color-heal);
    text-shadow: 0 0 10px var(--color-heal);
    pointer-events: none;
    animation: heal-pop 1s ease-out forwards;
}

/* ============================================
   Scrollbar
   ============================================ */
::-webkit-scrollbar {
    width: 8px;
}

::-webkit-scrollbar-track {
    background: rgba(0, 0, 0, 0.2);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb {
    background: rgba(255, 255, 255, 0.2);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: rgba(255, 255, 255, 0.3);
}

/* ============================================
   Responsive
   ============================================ */
@media (max-width: 1024px) {
    .player-hp {
        min-width: 150px;
        padding: var(--space-xs) var(--space-sm);
    }

    .player-hp__bar-container {
        display: none;
    }

    .slot {
        width: 70px;
        height: 100px;
    }

    .hand-area {
        max-width: 100%;
    }

    .skill-card {
        width: 120px;
    }
}

@media (max-width: 768px) {
    .game-container {
        padding: var(--space-md);
    }

    .player-hp {
        position: relative;
        top: auto !important;
        left: auto !important;
        right: auto !important;
        bottom: auto !important;
    }

    .timeline {
        flex-wrap: wrap;
        justify-content: center;
        max-width: 350px;
    }

    .slot {
        width: 60px;
        height: 85px;
    }

    .game-info-panel {
        flex-wrap: wrap;
        justify-content: center;
    }

    .kit-grid {
        grid-template-columns: 1fr;
    }
}

/* Utility Classes */
.hidden {
    display: none !important;
}

/* ============================================
   Menu Screen
   ============================================ */
.menu-screen {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: var(--gradient-main);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: var(--z-overlay);
}

.menu-screen::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background:
        radial-gradient(ellipse at 30% 20%, rgba(26, 138, 154, 0.2) 0%, transparent 50%),
        radial-gradient(ellipse at 70% 80%, rgba(107, 91, 122, 0.2) 0%, transparent 50%);
    pointer-events: none;
}

.menu-panel {
    position: relative;
    text-align: center;
    padding: var(--space-2xl);
    background: var(--glass-bg);
    backdrop-filter: var(--glass-blur);
    border: var(--glass-border);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-lg);
    max-width: 500px;
    width: 90%;
}

.menu-title {
    font-size: var(--font-size-3xl);
    font-weight: 800;
    letter-spacing: 0.15em;
    background: linear-gradient(135deg, #fff 0%, rgba(255, 255, 255, 0.7) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: var(--space-sm);
}

.menu-subtitle {
    font-size: var(--font-size-md);
    color: var(--color-text-muted);
    margin-bottom: var(--space-xl);
}

.menu-buttons {
    display: flex;
    flex-direction: column;
    gap: var(--space-md);
}

.btn--menu {
    display: flex;
    align-items: center;
    gap: var(--space-md);
    padding: var(--space-lg);
    background: var(--glass-bg-strong);
    border: 2px solid var(--color-border);
    border-radius: var(--radius-lg);
    color: var(--color-text);
    text-align: left;
    cursor: pointer;
    transition: all var(--transition-normal);
}

.btn--menu:hover {
    border-color: var(--color-primary-light);
    background: rgba(26, 138, 154, 0.15);
    transform: translateX(8px);
    box-shadow: 0 0 20px rgba(26, 138, 154, 0.3);
}

.btn--menu .btn-icon {
    font-size: 2rem;
}

.btn--menu .btn-text {
    display: flex;
    flex-direction: column;
    gap: var(--space-xs);
}

.btn--menu .btn-title {
    font-size: var(--font-size-lg);
    font-weight: 600;
}

.btn--menu .btn-desc {
    font-size: var(--font-size-sm);
    color: var(--color-text-muted);
}

/* ============================================
   Lobby Screen
   ============================================ */
.lobby-screen {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: var(--gradient-main);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: var(--z-overlay);
}

.lobby-screen::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background:
        radial-gradient(ellipse at 30% 20%, rgba(26, 138, 154, 0.2) 0%, transparent 50%),
        radial-gradient(ellipse at 70% 80%, rgba(107, 91, 122, 0.2) 0%, transparent 50%);
    pointer-events: none;
}

.lobby-panel {
    position: relative;
    padding: var(--space-2xl);
    background: var(--glass-bg);
    backdrop-filter: var(--glass-blur);
    border: var(--glass-border);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-lg);
    max-width: 500px;
    width: 90%;
    text-align: center;
}

.lobby-title {
    font-size: var(--font-size-xl);
    font-weight: 700;
    margin-bottom: var(--space-xl);
}

.back-btn {
    position: absolute;
    top: var(--space-md);
    left: var(--space-md);
    background: transparent;
    border: none;
    color: var(--color-text-muted);
    font-size: var(--font-size-sm);
    cursor: pointer;
    padding: var(--space-sm);
    transition: color var(--transition-fast);
}

.back-btn:hover {
    color: var(--color-text);
}

/* Lobby.timeline.not-my-turn .slot:not(.occupied) {
    cursor: wait;
    opacity: 0.8;
}

.timeline.not-my-turn .slot:hover:not(.occupied) {
    border-color: var(--color-border);
    background: var(--color-surface);
}

.timeline.not-my-turn::after {
    content: 'WAITING FOR OTHER PLAYERS...';
    position: absolute;
    bottom: -30px;
    left: 50%;
    transform: translateX(-50%);
    font-size: var(--font-size-xs);
    font-weight: 800;
    color: var(--color-text-dim);
    letter-spacing: 0.2em;
    pointer-events: none;
    animation: pulse-wait 2s infinite;
}

@keyframes pulse-wait {
    0%, 100% { opacity: 0.5; }
    50% { opacity: 0.8; }
}

/* Modal Skill Option */
.lobby-mode {
    display: flex;
    flex-direction: column;
    gap: var(--space-lg);
    align-items: center;
}

.btn--lobby {
    display: flex;
    align-items: center;
    gap: var(--space-md);
    padding: var(--space-md) var(--space-xl);
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-light) 100%);
    border: none;
    border-radius: var(--radius-lg);
    color: white;
    font-size: var(--font-size-md);
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition-normal);
    box-shadow: 0 4px 12px rgba(26, 138, 154, 0.3);
}

.btn--lobby:hover {
    transform: translateY(-4px);
    box-shadow: 0 8px 24px rgba(26, 138, 154, 0.4);
}

.lobby-divider {
    color: var(--color-text-dim);
    font-size: var(--font-size-sm);
    position: relative;
    width: 100%;
}

.lobby-divider::before,
.lobby-divider::after {
    content: '';
    position: absolute;
    top: 50%;
    width: 40%;
    height: 1px;
    background: var(--color-border);
}

.lobby-divider::before {
    left: 0;
}

.lobby-divider::after {
    right: 0;
}

.join-room-form {
    display: flex;
    gap: var(--space-sm);
    width: 100%;
}

.room-input {
    flex: 1;
    padding: var(--space-sm) var(--space-md);
    background: rgba(0, 0, 0, 0.3);
    border: 2px solid var(--color-border);
    border-radius: var(--radius-md);
    color: var(--color-text);
    font-size: var(--font-size-md);
    font-family: var(--font-primary);
    text-align: center;
    letter-spacing: 0.1em;
}

.room-input::placeholder {
    color: var(--color-text-dim);
}

.room-input:focus {
    outline: none;
    border-color: var(--color-primary-light);
}

/* Lobby Waiting */
.lobby-waiting {
    display: flex;
    flex-direction: column;
    gap: var(--space-lg);
    align-items: center;
}

.room-info {
    padding: var(--space-lg);
    background: rgba(0, 0, 0, 0.2);
    border-radius: var(--radius-lg);
    width: 100%;
}

.room-label {
    display: block;
    font-size: var(--font-size-sm);
    color: var(--color-text-muted);
    margin-bottom: var(--space-sm);
}

.room-id-display {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-sm);
}

.room-id {
    font-size: var(--font-size-2xl);
    font-weight: 700;
    letter-spacing: 0.2em;
    color: var(--color-primary-light);
    font-family: monospace;
}

.copy-btn {
    background: transparent;
    border: none;
    font-size: 1.2rem;
    cursor: pointer;
    padding: var(--space-xs);
    transition: transform var(--transition-fast);
}

.copy-btn:hover {
    transform: scale(1.2);
}

.room-hint {
    font-size: var(--font-size-sm);
    color: var(--color-text-dim);
    margin-top: var(--space-sm);
}

/* Players List */
.players-list {
    width: 100%;
}

.players-list h3 {
    font-size: var(--font-size-sm);
    color: var(--color-text-muted);
    margin-bottom: var(--space-md);
}

.players-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-sm);
}

.player-slot {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    padding: var(--space-md);
    background: var(--glass-bg);
    border: 2px solid var(--color-border);
    border-radius: var(--radius-md);
    transition: all var(--transition-fast);
}

.player-slot.connected {
    border-color: var(--color-primary-light);
    background: rgba(26, 138, 154, 0.1);
}

.player-slot.you {
    border-color: var(--player-green);
    box-shadow: 0 0 25px rgba(46, 204, 113, 0.5), inset 0 0 15px rgba(46, 204, 113, 0.2);
    background: rgba(46, 204, 113, 0.15);
}

.player-slot__header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    width: 100%;
}

.player-slot__you-badge {
    font-size: 0.6rem;
    font-weight: 900;
    padding: 2px 8px;
    background: var(--player-green);
    color: #0c331a;
    border-radius: 4px;
    letter-spacing: 0.05em;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.2);
}

.player-slot.empty {
    opacity: 0.4;
    border-style: dashed;
}

.player-slot__icon {
    font-size: 1.5rem;
}

.player-slot__info {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    gap: 2px;
}

.player-slot__name {
    font-size: var(--font-size-sm);
    font-weight: 600;
}

.player-slot__kit {
    font-size: var(--font-size-xs);
    color: var(--color-text-muted);
}

.player-slot__status {
    font-size: var(--font-size-xs);
    color: var(--color-text-dim);
}

/* Waiting Message */
.waiting-message {
    font-size: var(--font-size-sm);
    color: var(--color-text-muted);
    animation: pulse-text 2s ease-in-out infinite;
}

@keyframes pulse-text {

    0%,
    100% {
        opacity: 0.5;
    }

    50% {
        opacity: 1;
    }
}

.waiting-dots {
    animation: dots 1.5s steps(3, end) infinite;
}

@keyframes dots {
    0% {
        content: '';
    }

    33% {
        content: '.';
    }

    66% {
        content: '..';
    }

    100% {
        content: '...';
    }
}

/* Connecting Spinner */
.connecting {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--space-md);
    padding: var(--space-xl);
}

.spinner {
    width: 48px;
    height: 48px;
    border: 4px solid var(--color-border);
    border-top-color: var(--color-primary-light);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    to {
        transform: rotate(360deg);
    }
}

/* Online Kit Selection */
#online-kit-selection {
    width: 100%;
    text-align: left;
}

#online-kit-selection h3 {
    font-size: var(--font-size-sm);
    color: var(--color-text-muted);
    margin-bottom: var(--space-sm);
}

#my-kit-select {
    width: 100%;
}