/* ==========================================================================
   Karty App - Warm Golden Card Drawing PWA
   ========================================================================== */

:root {
    /* Barbora Website Colors - matching main site */
    --color-bg: #ECE8E5;
    --color-bg-warm: #E3DEDB;
    --color-text: #0E1F32;
    --color-text-soft: #6E5E60;

    /* Site color spectrum */
    --color-gold-dark: #6E5E60;
    --color-gold: #9E8E8A;
    --color-gold-light: #D5CECA;
    --color-champagne: #E3DEDB;
    --color-champagne-light: #ECE8E5;
    --color-cream: #F9F9F9;

    /* Accent - soft pink from site */
    --color-accent: #E9C9CD;
    --color-accent-soft: #F3DFE1;

    /* Gradients - matching site aesthetic */
    --gradient-gold: linear-gradient(135deg, #E9C9CD 0%, #ECE8E5 100%);
    --gradient-warm: linear-gradient(180deg, #F9F9F9 0%, #ECE8E5 100%);
    --card-bg: linear-gradient(145deg, #FFFFFF 0%, #ECE8E5 100%);
    --card-back: linear-gradient(145deg, #0E1F32 0%, #1A3148 50%, #2D4A5E 100%);

    /* Typography */
    --font-display: 'Cormorant Garamond', Georgia, serif;
    --font-body: 'DM Sans', system-ui, sans-serif;

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

    /* Transitions */
    --transition-fast: 0.2s ease;
    --transition-medium: 0.4s ease;
    --transition-slow: 0.8s cubic-bezier(0.16, 1, 0.3, 1);

    /* Card dimensions */
    --card-width: min(280px, 75vw);
    --card-height: calc(var(--card-width) * 1.45);
    --card-radius: 16px;

    /* App container - keeps it compact on desktop */
    --app-max-width: 420px;
}

/* ==========================================================================
   Reset & Base
   ========================================================================== */

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

html {
    font-size: 16px;
    -webkit-tap-highlight-color: transparent;
}

body {
    font-family: var(--font-body);
    background: var(--gradient-warm);
    background-attachment: fixed;
    color: var(--color-text);
    min-height: 100vh;
    min-height: 100dvh;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    display: flex;
    justify-content: center;
}

button {
    font-family: inherit;
    cursor: pointer;
    border: none;
    background: none;
    color: inherit;
}

/* ==========================================================================
   App Container - Compact on Desktop
   ========================================================================== */

.app {
    position: relative;
    width: 100%;
    max-width: var(--app-max-width);
    min-height: 100vh;
    min-height: 100dvh;
    overflow: hidden;
    background: var(--color-bg);
    box-shadow: 0 0 60px -20px rgba(139, 105, 20, 0.15);
}

/* On desktop, add subtle border effect and compact height */
@media (min-width: 500px) {
    body {
        padding: 40px 20px;
        background: linear-gradient(135deg, var(--color-champagne-light) 0%, var(--color-bg-warm) 50%, var(--color-accent-soft) 100%);
        align-items: center;
    }

    .app {
        min-height: auto;
        height: min(700px, calc(100vh - 80px));
        border-radius: 32px;
        border: 1px solid var(--color-champagne);
    }
}

/* ==========================================================================
   Background Decorations
   ========================================================================== */

.bg-glow {
    position: absolute;
    border-radius: 50%;
    filter: blur(60px);
    opacity: 0.4;
    pointer-events: none;
    z-index: 0;
}

.bg-glow--1 {
    width: 200px;
    height: 200px;
    background: radial-gradient(circle, var(--color-champagne) 0%, transparent 70%);
    top: -50px;
    right: -50px;
    animation: float 20s ease-in-out infinite;
}

.bg-glow--2 {
    width: 180px;
    height: 180px;
    background: radial-gradient(circle, var(--color-accent) 0%, transparent 70%);
    bottom: 100px;
    left: -60px;
    animation: float 25s ease-in-out infinite reverse;
}

@keyframes float {
    0%, 100% { transform: translate(0, 0) scale(1); }
    33% { transform: translate(10px, -15px) scale(1.05); }
    66% { transform: translate(-8px, 10px) scale(0.95); }
}

.bg-pattern {
    position: absolute;
    inset: 0;
    background-image:
        radial-gradient(circle at 25% 25%, var(--color-gold-light) 1px, transparent 1px),
        radial-gradient(circle at 75% 75%, var(--color-champagne) 1px, transparent 1px);
    background-size: 50px 50px, 70px 70px;
    opacity: 0.2;
    pointer-events: none;
    z-index: 0;
}

/* ==========================================================================
   Screens
   ========================================================================== */

.screen {
    position: absolute;
    inset: 0;
    display: flex;
    flex-direction: column;
    padding: var(--space-md);
    padding-top: max(var(--space-md), env(safe-area-inset-top));
    padding-bottom: max(var(--space-md), env(safe-area-inset-bottom));
    opacity: 0;
    visibility: hidden;
    transition: opacity var(--transition-medium), visibility var(--transition-medium);
    z-index: 1;
}

.screen.active {
    opacity: 1;
    visibility: visible;
}

/* ==========================================================================
   Welcome Screen
   ========================================================================== */

.welcome-header {
    text-align: center;
    padding-bottom: var(--space-sm);
}

.logo {
    display: inline-flex;
    align-items: center;
    gap: var(--space-xs);
    font-family: var(--font-display);
    font-size: 1.4rem;
    font-weight: 500;
    letter-spacing: 0.05em;
    color: var(--color-text);
}

.logo-symbol {
    color: var(--color-gold-dark);
    font-size: 1.3em;
    animation: twinkle 3s ease-in-out infinite;
}

@keyframes twinkle {
    0%, 100% { opacity: 1; transform: scale(1); }
    50% { opacity: 0.7; transform: scale(0.95); }
}

.welcome-subtitle {
    font-size: 0.8rem;
    color: var(--color-text-soft);
    letter-spacing: 0.15em;
    text-transform: uppercase;
    margin-top: 4px;
}

.welcome-content {
    flex: 1;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    text-align: center;
    padding: var(--space-sm) 0;
}

.welcome-title {
    font-family: var(--font-display);
    font-size: clamp(2.4rem, 10vw, 3.2rem);
    font-weight: 400;
    line-height: 1.15;
    margin-bottom: var(--space-sm);
    color: var(--color-text);
}

.welcome-title em {
    font-style: italic;
    color: var(--color-gold-dark);
}

.welcome-description {
    font-size: 1.1rem;
    color: var(--color-text-soft);
    max-width: 280px;
    line-height: 1.5;
}

/* ==========================================================================
   Random Button
   ========================================================================== */

.btn-random {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    padding: 20px 40px;
    margin-bottom: var(--space-lg);
    background: linear-gradient(145deg, var(--color-text) 0%, #5C4F46 100%);
    color: var(--color-cream);
    font-family: var(--font-display);
    font-size: 1.3rem;
    font-weight: 500;
    letter-spacing: 0.02em;
    border-radius: 100px;
    box-shadow:
        0 6px 24px -6px rgba(74, 63, 56, 0.5),
        0 2px 8px -2px rgba(74, 63, 56, 0.3),
        inset 0 1px 0 rgba(255, 255, 255, 0.1);
    transition: all var(--transition-medium);
    position: relative;
    overflow: hidden;
}

.btn-random::before {
    content: '✦';
    font-size: 1rem;
    opacity: 0.7;
}

.btn-random::after {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(145deg, rgba(255,255,255,0.1) 0%, transparent 50%);
    pointer-events: none;
}

.btn-random:hover, .btn-random:active {
    transform: translateY(-3px);
    box-shadow:
        0 10px 32px -8px rgba(74, 63, 56, 0.55),
        0 4px 12px -2px rgba(74, 63, 56, 0.35),
        inset 0 1px 0 rgba(255, 255, 255, 0.15);
}

/* ==========================================================================
   Card Pools
   ========================================================================== */

.pools {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-sm);
    width: 100%;
    max-width: 340px;
    margin: 0 auto;
}

.pool-card {
    position: relative;
    background: var(--color-cream);
    border: 1px solid var(--color-champagne);
    border-radius: 14px;
    padding: var(--space-md) var(--space-sm);
    text-align: center;
    transition: all var(--transition-fast);
    overflow: hidden;
}

.pool-card::before {
    content: '';
    position: absolute;
    inset: 0;
    background: var(--gradient-gold);
    opacity: 0;
    transition: opacity var(--transition-fast);
}

.pool-card:hover, .pool-card:active {
    transform: translateY(-3px);
    border-color: var(--color-gold-light);
    box-shadow: 0 8px 24px -8px rgba(196, 151, 60, 0.3);
}

.pool-card:hover::before, .pool-card:active::before {
    opacity: 0.08;
}

.pool-card__icon {
    font-size: 1.8rem;
    margin-bottom: 6px;
    display: block;
    position: relative;
    z-index: 1;
}

.pool-card__name {
    font-family: var(--font-display);
    font-size: 1.2rem;
    font-weight: 500;
    margin-bottom: 2px;
    position: relative;
    z-index: 1;
    color: var(--color-text);
}

.pool-card__count {
    font-size: 0.85rem;
    color: var(--color-text-soft);
    position: relative;
    z-index: 1;
}

/* ==========================================================================
   Draw Screen
   ========================================================================== */

.draw-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding-bottom: var(--space-xs);
}

.btn-back {
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    color: var(--color-text-soft);
    transition: all var(--transition-fast);
}

.btn-back:hover, .btn-back:active {
    background: var(--color-champagne-light);
    color: var(--color-text);
}

.pool-title {
    font-family: var(--font-display);
    font-size: 1.25rem;
    font-weight: 500;
    text-align: center;
    color: var(--color-gold-dark);
}

.header-spacer {
    width: 40px;
}

/* ==========================================================================
   Card Area
   ========================================================================== */

.card-area {
    flex: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: var(--space-md);
}

.card-container {
    perspective: 1000px;
    width: var(--card-width);
    height: var(--card-height);
}

.card {
    position: relative;
    width: 100%;
    height: 100%;
    transform-style: preserve-3d;
    transition: transform 0.7s ease-in-out;
    cursor: pointer;
}

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

.card.no-transition {
    transition: none;
}

.card-face {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    backface-visibility: hidden;
    border-radius: var(--card-radius);
    box-shadow:
        0 4px 16px -4px rgba(127, 97, 82, 0.25),
        0 10px 30px -8px rgba(127, 97, 82, 0.15);
}

/* Card Back */
.card-back {
    background: var(--card-back);
    transform: rotateY(0deg);
}

.card-back-design {
    position: absolute;
    inset: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
}

.card-back-pattern {
    position: absolute;
    inset: 10px;
    border: 1px solid rgba(255,255,255,0.25);
    border-radius: calc(var(--card-radius) - 6px);
}

.card-back-pattern::before {
    content: '';
    position: absolute;
    inset: 6px;
    border: 1px solid rgba(255,255,255,0.15);
    border-radius: calc(var(--card-radius) - 10px);
}

.card-back-symbol {
    font-size: 2.5rem;
    color: rgba(255, 255, 255, 0.9);
    z-index: 2;
    text-shadow: 0 2px 10px rgba(139, 105, 20, 0.3);
    animation: pulse 4s ease-in-out infinite;
}

@keyframes pulse {
    0%, 100% { transform: scale(1); opacity: 1; }
    50% { transform: scale(1.08); opacity: 0.85; }
}

.card-back-ring {
    position: absolute;
    border: 1px solid rgba(255,255,255,0.15);
    border-radius: 50%;
}

.card-back-ring--1 {
    width: 100px;
    height: 100px;
    animation: rotate 30s linear infinite;
}

.card-back-ring--2 {
    width: 150px;
    height: 150px;
    animation: rotate 45s linear infinite reverse;
}

@keyframes rotate {
    from { transform: rotate(0deg); }
    to { transform: rotate(360deg); }
}

/* Card Front - Cream with golden accents */
.card-front {
    background: var(--card-bg);
    transform: rotateY(180deg);
}

.card-content {
    height: 100%;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: var(--space-lg) var(--space-md);
    text-align: center;
}

.card-decoration {
    width: 50px;
    height: 2px;
    background: var(--gradient-gold);
    border-radius: 1px;
}

.card-decoration--top {
    margin-bottom: var(--space-md);
}

.card-decoration--bottom {
    margin-top: var(--space-md);
}

.card-text {
    font-family: var(--font-display);
    font-size: clamp(1.3rem, 5.5vw, 1.6rem);
    font-weight: 400;
    font-style: italic;
    line-height: 1.5;
    color: var(--color-text);
    position: relative;
    z-index: 2;
}

/* ==========================================================================
   Draw Actions
   ========================================================================== */

.draw-hint {
    font-size: 0.85rem;
    color: var(--color-text-soft);
    text-align: center;
    transition: opacity var(--transition-fast);
}

.draw-hint.hidden {
    opacity: 0;
}

.draw-actions {
    display: flex;
    justify-content: center;
    padding-top: var(--space-sm);
}

.btn-draw {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-xs);
    padding: 14px var(--space-xl);
    background: var(--color-text);
    color: var(--color-cream);
    font-size: 1rem;
    font-weight: 500;
    letter-spacing: 0.03em;
    border-radius: 100px;
    box-shadow: 0 4px 15px -3px rgba(14, 31, 50, 0.3);
    transition: all var(--transition-fast);
    opacity: 0;
    visibility: hidden;
    transform: translateY(8px);
}

.btn-draw.visible {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.btn-draw:hover, .btn-draw:active {
    transform: translateY(-2px);
    background: #1A3148;
    box-shadow: 0 6px 20px -3px rgba(14, 31, 50, 0.4);
}

/* ==========================================================================
   Animations for screen transitions
   ========================================================================== */

.screen--welcome .welcome-header {
    animation: fadeInDown 0.5s ease-out both;
}

.screen--welcome .welcome-content {
    animation: fadeIn 0.6s ease-out 0.15s both;
}

.screen--welcome .pools {
    animation: fadeInUp 0.5s ease-out 0.3s both;
}

@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

@keyframes fadeInDown {
    from { opacity: 0; transform: translateY(-15px); }
    to { opacity: 1; transform: translateY(0); }
}

@keyframes fadeInUp {
    from { opacity: 0; transform: translateY(15px); }
    to { opacity: 1; transform: translateY(0); }
}

/* ==========================================================================
   PWA Standalone Mode
   ========================================================================== */

@media (display-mode: standalone) {
    body {
        padding-top: env(safe-area-inset-top);
    }

    .app {
        border-radius: 0;
        border: none;
    }
}

/* ==========================================================================
   Reduced Motion
   ========================================================================== */

@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}