/**
 * Cosmos Arcade Mobile App
 * Modern Mobile-First Design
 * Brand Colors: #8d3b8d (Purple/Magenta)
 */

/* ========================
   CSS Variables
   ======================== */
:root {
    /* Cosmos Arcade Brand Colors */
    --primary: #8d3b8d;
    --primary-light: #a855a8;
    --primary-dark: #6b2d6b;
    --primary-glow: rgba(141, 59, 141, 0.5);

    /* Neon Accents */
    --neon-pink: #ff00ff;
    --neon-cyan: #00f0ff;
    --neon-purple: #9d4edd;

    /* Background Colors */
    --bg-dark: #0a0a12;
    --bg-surface: #12121f;
    --bg-card: #1a1a2e;
    --bg-elevated: #222236;

    /* Text Colors */
    --text-primary: #ffffff;
    --text-secondary: rgba(255, 255, 255, 0.7);
    --text-muted: rgba(255, 255, 255, 0.4);

    /* Status Colors */
    --success: #00d68f;
    --warning: #ffaa00;
    --error: #ff3d71;

    /* Typography */
    --font-display: 'Orbitron', sans-serif;
    --font-body: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;

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

    /* Border Radius */
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 20px;
    --radius-xl: 28px;
    --radius-full: 100px;

    /* Shadows & Glows */
    --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);
    --glow-primary: 0 0 20px var(--primary-glow), 0 0 40px var(--primary-glow);
    --glow-neon: 0 0 10px var(--neon-pink), 0 0 20px var(--neon-pink);

    /* Transitions */
    --transition-fast: 150ms ease;
    --transition-normal: 250ms ease;
    --transition-slow: 400ms cubic-bezier(0.4, 0, 0.2, 1);

    /* Safe Areas */
    --safe-top: env(safe-area-inset-top, 0px);
    --safe-bottom: env(safe-area-inset-bottom, 0px);
}

/* ========================
   Reset & Base
   ======================== */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
    -webkit-tap-highlight-color: transparent;
}

html {
    font-size: 16px;
    height: 100%;
    overflow: hidden;
}

body {
    font-family: var(--font-body);
    background: var(--bg-dark);
    color: var(--text-primary);
    height: 100%;
    overflow: hidden;
    line-height: 1.5;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

#app {
    height: 100%;
    overflow: hidden;
    position: relative;
}

/* ========================
   Screen Management
   ======================== */
.screen {
    position: fixed;
    inset: 0;
    display: none;
    flex-direction: column;
    background: var(--bg-dark);
    opacity: 0;
    transition: opacity var(--transition-normal);
    z-index: 1;
}

.screen.active {
    display: flex;
    opacity: 1;
    z-index: 10;
}

/* ========================
   Loading Screen
   ======================== */
#loading-screen {
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--bg-dark) 0%, #1a0a2e 100%);
}

.loading-content {
    text-align: center;
}

.logo-icon {
    width: 80px;
    height: 80px;
    margin: 0 auto var(--spacing-lg);
}

.logo-spinner {
    width: 100%;
    height: 100%;
    animation: spin 2s linear infinite;
}

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

.logo-text {
    font-family: var(--font-display);
    font-size: 2.5rem;
    font-weight: 900;
    letter-spacing: 0.2em;
    color: var(--primary);
    text-shadow: var(--glow-primary);
    margin-bottom: var(--spacing-md);
}

.loading-text {
    color: var(--text-muted);
    font-size: 0.9rem;
}

/* ========================
   Auth Screens
   ======================== */
.auth-screen {
    background: linear-gradient(180deg, var(--bg-dark) 0%, #1a0a2e 50%, var(--bg-dark) 100%);
    overflow-y: auto;
}

.auth-container {
    min-height: 100%;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-xl);
    padding-top: calc(var(--safe-top) + var(--spacing-xl));
    padding-bottom: calc(var(--safe-bottom) + var(--spacing-xl));
}

.auth-container.center {
    text-align: center;
}

.auth-logo {
    margin-bottom: var(--spacing-xxl);
    text-align: center;
}

.auth-logo h1 {
    font-family: var(--font-display);
    font-size: 3rem;
    font-weight: 900;
    letter-spacing: 0.15em;
    color: var(--primary);
    text-shadow: var(--glow-primary);
}

.auth-logo.small h1 {
    font-size: 1.8rem;
}

.auth-subtitle {
    display: block;
    font-family: var(--font-display);
    font-size: 1rem;
    font-weight: 400;
    letter-spacing: 0.4em;
    color: var(--text-secondary);
    margin-top: var(--spacing-xs);
}

.auth-title {
    font-family: var(--font-display);
    font-size: 1.4rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: var(--spacing-lg);
    letter-spacing: 0.05em;
}

.auth-info {
    color: var(--text-secondary);
    font-size: 0.9rem;
    margin-bottom: var(--spacing-lg);
    max-width: 300px;
}

.auth-form {
    width: 100%;
    max-width: 340px;
}

.btn-back {
    position: absolute;
    top: calc(var(--safe-top) + var(--spacing-md));
    left: var(--spacing-md);
    width: 44px;
    height: 44px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: none;
    border: none;
    color: var(--text-secondary);
    cursor: pointer;
    transition: color var(--transition-fast);
}

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

.btn-back svg {
    width: 24px;
    height: 24px;
}

/* ========================
   Input Groups
   ======================== */
.input-group {
    position: relative;
    margin-bottom: var(--spacing-lg);
}

.input-group input {
    width: 100%;
    padding: var(--spacing-md);
    padding-top: var(--spacing-lg);
    background: var(--bg-surface);
    border: 1px solid transparent;
    border-radius: var(--radius-md);
    color: var(--text-primary);
    font-size: 1rem;
    font-family: var(--font-body);
    outline: none;
    transition: all var(--transition-fast);
}

.input-group input:focus {
    border-color: var(--primary);
    box-shadow: 0 0 0 3px var(--primary-glow);
}

.input-group label {
    position: absolute;
    left: var(--spacing-md);
    top: 50%;
    transform: translateY(-50%);
    color: var(--text-muted);
    font-size: 0.95rem;
    pointer-events: none;
    transition: all var(--transition-fast);
}

.input-group input:focus + label,
.input-group input:not(:placeholder-shown) + label {
    top: 10px;
    transform: translateY(0);
    font-size: 0.75rem;
    color: var(--primary-light);
}

.input-line {
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background: linear-gradient(90deg, var(--primary), var(--neon-pink));
    border-radius: 0 0 var(--radius-md) var(--radius-md);
    transition: width var(--transition-normal);
}

.input-group input:focus ~ .input-line {
    width: 100%;
}

.input-hint {
    font-size: 0.8rem;
    color: var(--text-muted);
    margin-top: -var(--spacing-sm);
    margin-bottom: var(--spacing-md);
}

/* ========================
   Buttons
   ======================== */
.btn-neon {
    position: relative;
    width: 100%;
    padding: var(--spacing-md) var(--spacing-lg);
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
    border: none;
    border-radius: var(--radius-full);
    color: var(--text-primary);
    font-family: var(--font-display);
    font-size: 1rem;
    font-weight: 600;
    letter-spacing: 0.1em;
    cursor: pointer;
    overflow: hidden;
    transition: all var(--transition-normal);
}

.btn-neon:hover {
    transform: translateY(-2px);
    box-shadow: var(--glow-primary);
}

.btn-neon:active {
    transform: translateY(0);
}

.btn-neon:disabled {
    opacity: 0.5;
    cursor: not-allowed;
    transform: none;
}

.btn-glow {
    position: absolute;
    inset: 0;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.2), transparent);
    transform: translateX(-100%);
}

.btn-neon:hover .btn-glow {
    animation: shimmer 1s infinite;
}

@keyframes shimmer {
    to { transform: translateX(100%); }
}

.btn-outline {
    padding: var(--spacing-sm) var(--spacing-lg);
    background: transparent;
    border: 1px solid var(--primary);
    border-radius: var(--radius-full);
    color: var(--primary);
    font-size: 0.9rem;
    cursor: pointer;
    transition: all var(--transition-fast);
}

.btn-outline:hover {
    background: var(--primary);
    color: var(--text-primary);
}

/* ========================
   Auth Links
   ======================== */
.auth-links {
    margin-top: var(--spacing-lg);
    font-size: 0.9rem;
}

.auth-links a {
    color: var(--text-secondary);
    text-decoration: none;
    transition: color var(--transition-fast);
}

.auth-links a:hover {
    color: var(--primary);
}

.auth-links .divider {
    margin: 0 var(--spacing-sm);
    color: var(--text-muted);
}

.link-back {
    display: block;
    margin-top: var(--spacing-lg);
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 0.9rem;
}

.link-back:hover {
    color: var(--primary);
}

/* ========================
   Verify Email
   ======================== */
.verify-icon {
    width: 80px;
    height: 80px;
    margin: 0 auto var(--spacing-lg);
    color: var(--primary);
}

.verify-icon svg {
    width: 100%;
    height: 100%;
}

/* ========================
   Form Messages
   ======================== */
.form-error {
    color: var(--error);
    font-size: 0.85rem;
    margin-bottom: var(--spacing-md);
    min-height: 20px;
}

.form-success {
    color: var(--success);
    font-size: 0.85rem;
    margin-bottom: var(--spacing-md);
    min-height: 20px;
}

/* ========================
   Main Screen
   ======================== */
.main-screen {
    background: var(--bg-dark);
}

/* Header */
.main-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--spacing-md) var(--spacing-lg);
    padding-top: calc(var(--safe-top) + var(--spacing-md));
    background: var(--bg-surface);
    border-bottom: 1px solid rgba(141, 59, 141, 0.2);
}

.header-balance {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
}

.header-balance .balance-amount {
    font-family: var(--font-display);
    font-size: 1.4rem;
    font-weight: 700;
    color: var(--primary);
}

.header-balance .balance-label {
    font-size: 0.7rem;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.1em;
}

.header-title {
    font-family: var(--font-display);
    font-size: 1.2rem;
    font-weight: 700;
    letter-spacing: 0.15em;
    color: var(--primary);
    text-shadow: 0 0 10px var(--primary-glow);
}

.btn-menu {
    width: 44px;
    height: 44px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 8px;
}

.btn-menu span {
    display: block;
    width: 22px;
    height: 2px;
    background: var(--text-primary);
    border-radius: 2px;
    transition: all var(--transition-fast);
}

.btn-menu.active span:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
}

.btn-menu.active span:nth-child(2) {
    opacity: 0;
}

.btn-menu.active span:nth-child(3) {
    transform: rotate(-45deg) translate(5px, -5px);
}

/* ========================
   Devices Section
   ======================== */
.devices-section {
    flex: 1;
    display: flex;
    flex-direction: column;
    padding: var(--spacing-lg) 0;
    overflow: hidden;
}

.section-title {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 var(--spacing-lg);
    margin-bottom: var(--spacing-lg);
}

.section-title h2 {
    font-family: var(--font-display);
    font-size: 1.1rem;
    font-weight: 600;
    letter-spacing: 0.1em;
    color: var(--text-primary);
}

.device-count {
    font-size: 0.8rem;
    color: var(--text-muted);
}

/* Carousel */
.devices-carousel {
    flex: 1;
    overflow: hidden;
    position: relative;
}

.carousel-track {
    display: flex;
    gap: var(--spacing-md);
    padding: 0 calc(50vw - 140px); /* Center cards */
    overflow-x: auto;
    scroll-snap-type: x mandatory;
    scroll-behavior: smooth;
    -webkit-overflow-scrolling: touch;
    scrollbar-width: none;
    height: 100%;
    align-items: center;
    scroll-padding: 0 calc(50vw - 140px);
}

.carousel-track::-webkit-scrollbar {
    display: none;
}

/* Spacer for last card to be centerable */
.carousel-track::after {
    content: '';
    flex: 0 0 1px;
    height: 1px;
}

/* Device Card */
.device-card {
    flex: 0 0 280px;
    min-width: 280px;
    height: 380px;
    background: linear-gradient(135deg, var(--bg-card) 0%, var(--bg-elevated) 100%);
    border-radius: var(--radius-lg);
    border: 1px solid rgba(141, 59, 141, 0.2);
    scroll-snap-align: center;
    display: flex;
    flex-direction: column;
    overflow: hidden;
    transition: all var(--transition-normal), transform 0.3s ease, opacity 0.3s ease;
    cursor: pointer;
    opacity: 0.5;
    transform: scale(0.9);
}

.device-card.active {
    opacity: 1;
    transform: scale(1);
    border-color: var(--primary);
    box-shadow: var(--glow-primary);
}

.device-card.blocked {
    opacity: 0.4;
    transform: scale(0.85);
}

.device-card.blocked.active {
    opacity: 0.6;
    transform: scale(0.95);
    box-shadow: none;
    border-color: var(--error);
}

.device-image {
    height: 140px;
    background: linear-gradient(135deg, var(--bg-elevated) 0%, var(--primary-dark) 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    overflow: hidden;
}

.device-image svg {
    width: 60px;
    height: 60px;
    color: var(--primary);
    opacity: 0.5;
}

.device-status-badge {
    position: absolute;
    top: var(--spacing-sm);
    right: var(--spacing-sm);
    padding: var(--spacing-xs) var(--spacing-sm);
    background: var(--success);
    border-radius: var(--radius-sm);
    font-size: 0.7rem;
    font-weight: 600;
    color: var(--bg-dark);
    text-transform: uppercase;
}

.device-card.blocked .device-status-badge {
    background: var(--error);
    color: var(--text-primary);
}

.device-info {
    flex: 1;
    padding: var(--spacing-md);
    display: flex;
    flex-direction: column;
}

.device-name {
    font-family: var(--font-display);
    font-size: 1rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: var(--spacing-xs);
}

.device-bt {
    font-size: 0.75rem;
    color: var(--text-muted);
    font-family: monospace;
    margin-bottom: auto;
}

.device-distance {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-md);
}

.distance-bar {
    flex: 1;
    height: 4px;
    background: var(--bg-dark);
    border-radius: var(--radius-full);
    overflow: hidden;
}

.distance-fill {
    height: 100%;
    background: linear-gradient(90deg, var(--success), var(--warning));
    border-radius: var(--radius-full);
    transition: width var(--transition-normal);
}

.distance-text {
    font-size: 0.75rem;
    color: var(--text-muted);
    min-width: 50px;
    text-align: right;
}

.device-price {
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.price-value {
    font-family: var(--font-display);
    font-size: 1.2rem;
    font-weight: 700;
    color: var(--primary);
}

.price-label {
    font-size: 0.75rem;
    color: var(--text-muted);
    margin-left: var(--spacing-xs);
}

.device-play-btn {
    width: 44px;
    height: 44px;
    background: var(--primary);
    border: none;
    border-radius: 50%;
    color: var(--text-primary);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all var(--transition-fast);
}

.device-play-btn:hover {
    background: var(--primary-light);
    box-shadow: var(--glow-primary);
}

.device-play-btn svg {
    width: 20px;
    height: 20px;
}

/* Carousel Dots */
.carousel-dots {
    display: flex;
    justify-content: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-md);
}

.carousel-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--bg-elevated);
    transition: all var(--transition-fast);
}

.carousel-dot.active {
    width: 24px;
    border-radius: var(--radius-full);
    background: var(--primary);
}

/* ========================
   Bluetooth Indicator
   ======================== */
.bluetooth-indicator {
    position: fixed;
    bottom: 100px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm) var(--spacing-md);
    background: var(--bg-surface);
    border: 1px solid rgba(141, 59, 141, 0.3);
    border-radius: var(--radius-full);
    font-size: 0.8rem;
    color: var(--text-secondary);
    z-index: 20;
}

.bluetooth-indicator svg {
    width: 18px;
    height: 18px;
    color: var(--primary);
}

.bt-pulse {
    width: 8px;
    height: 8px;
    background: var(--success);
    border-radius: 50%;
    animation: pulse 2s infinite;
}

@keyframes pulse {
    0%, 100% { opacity: 1; transform: scale(1); }
    50% { opacity: 0.5; transform: scale(1.2); }
}

.bluetooth-indicator.scanning .bt-pulse {
    background: var(--warning);
}

.bluetooth-indicator.disconnected .bt-pulse {
    background: var(--error);
    animation: none;
}

/* ========================
   Card FAB (Floating Action Button)
   ======================== */
.card-fab {
    position: fixed;
    bottom: calc(var(--safe-bottom) + var(--spacing-lg));
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-md) var(--spacing-xl);
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
    border: none;
    border-radius: var(--radius-full);
    color: var(--text-primary);
    font-family: var(--font-display);
    font-size: 0.9rem;
    font-weight: 600;
    letter-spacing: 0.1em;
    cursor: pointer;
    box-shadow: var(--glow-primary);
    z-index: 100;
    transition: all var(--transition-normal);
}

.card-fab:hover {
    transform: translateX(-50%) translateY(-2px);
    box-shadow: 0 0 30px var(--primary-glow), 0 0 60px var(--primary-glow);
}

.card-fab svg {
    width: 20px;
    height: 20px;
}

/* ========================
   Side Menu
   ======================== */
.menu-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.7);
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-normal);
    z-index: 200;
}

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

.side-menu {
    position: fixed;
    top: 0;
    right: 0;
    bottom: 0;
    width: 280px;
    max-width: 85%;
    background: var(--bg-surface);
    transform: translateX(100%);
    transition: transform var(--transition-slow);
    z-index: 210;
    display: flex;
    flex-direction: column;
}

.side-menu.active {
    transform: translateX(0);
}

.menu-header {
    padding: var(--spacing-xl);
    padding-top: calc(var(--safe-top) + var(--spacing-xl));
    background: linear-gradient(135deg, var(--primary-dark) 0%, var(--bg-surface) 100%);
}

.menu-user {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
}

.user-avatar {
    width: 50px;
    height: 50px;
    background: var(--primary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-family: var(--font-display);
    font-size: 1.2rem;
    font-weight: 700;
    color: var(--text-primary);
}

.user-info {
    flex: 1;
    overflow: hidden;
}

.user-name {
    display: block;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 2px;
}

.user-email {
    display: block;
    font-size: 0.8rem;
    color: var(--text-secondary);
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.menu-nav {
    flex: 1;
    padding: var(--spacing-md);
}

.menu-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    padding: var(--spacing-md);
    color: var(--text-secondary);
    text-decoration: none;
    border-radius: var(--radius-md);
    transition: all var(--transition-fast);
}

.menu-item:hover {
    background: var(--bg-card);
    color: var(--text-primary);
}

.menu-item svg {
    width: 22px;
    height: 22px;
}

.menu-item.logout {
    color: var(--error);
}

.menu-divider {
    height: 1px;
    background: var(--bg-elevated);
    margin: var(--spacing-md) 0;
}

/* ========================
   Bottom Sheet
   ======================== */
.bottom-sheet {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    background: var(--bg-surface);
    border-radius: var(--radius-xl) var(--radius-xl) 0 0;
    transform: translateY(calc(100% - 0px));
    transition: transform var(--transition-slow);
    z-index: 150;
    max-height: 85vh;
    box-shadow: 0 -4px 30px rgba(0, 0, 0, 0.5);
}

.bottom-sheet.open {
    transform: translateY(0);
}

.sheet-handle {
    width: 40px;
    height: 4px;
    background: var(--bg-elevated);
    border-radius: var(--radius-full);
    margin: var(--spacing-md) auto;
}

.sheet-content {
    padding: 0 var(--spacing-xl) var(--spacing-xl);
    padding-bottom: calc(var(--safe-bottom) + var(--spacing-xl));
}

.sheet-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: var(--spacing-lg);
}

.sheet-header h3 {
    font-family: var(--font-display);
    font-size: 1.1rem;
    font-weight: 600;
    letter-spacing: 0.05em;
}

.card-select {
    padding: var(--spacing-sm) var(--spacing-md);
    background: var(--bg-card);
    border: 1px solid var(--primary);
    border-radius: var(--radius-md);
    color: var(--text-primary);
    font-size: 0.85rem;
    cursor: pointer;
}

.qr-display {
    background: #ffffff;
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
    text-align: center;
    margin-bottom: var(--spacing-md);
}

.qr-code {
    display: inline-block;
}

.qr-code canvas {
    display: block;
}

.qr-cardid {
    margin-top: var(--spacing-md);
    font-family: monospace;
    font-size: 0.9rem;
    font-weight: 600;
    color: #1a1a2e;
    letter-spacing: 0.05em;
}

.qr-hint {
    text-align: center;
    font-size: 0.8rem;
    color: var(--text-muted);
    margin-bottom: var(--spacing-lg);
}

.sheet-balance {
    display: flex;
    justify-content: space-around;
    padding: var(--spacing-md);
    background: var(--bg-card);
    border-radius: var(--radius-md);
}

.sheet-balance .balance-item {
    text-align: center;
}

.sheet-balance .balance-value {
    display: block;
    font-family: var(--font-display);
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary);
}

.sheet-balance .balance-label {
    font-size: 0.7rem;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.1em;
}

/* ========================
   Slide Panels
   ======================== */
.slide-panel {
    position: fixed;
    inset: 0;
    background: var(--bg-dark);
    transform: translateX(100%);
    transition: transform var(--transition-slow);
    z-index: 300;
    display: flex;
    flex-direction: column;
}

.slide-panel.active {
    transform: translateX(0);
}

.panel-header {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    padding: var(--spacing-md) var(--spacing-lg);
    padding-top: calc(var(--safe-top) + var(--spacing-md));
    background: var(--bg-surface);
    border-bottom: 1px solid rgba(141, 59, 141, 0.2);
}

.panel-header h2 {
    flex: 1;
    font-family: var(--font-display);
    font-size: 1.1rem;
    font-weight: 600;
    letter-spacing: 0.05em;
}

.panel-header .btn-back {
    position: relative;
    top: 0;
    left: 0;
}

.btn-add {
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--primary);
    border: none;
    border-radius: 50%;
    color: var(--text-primary);
    cursor: pointer;
    transition: all var(--transition-fast);
}

.btn-add:hover {
    background: var(--primary-light);
}

.btn-add svg {
    width: 20px;
    height: 20px;
}

.panel-content {
    flex: 1;
    overflow-y: auto;
    padding: var(--spacing-lg);
}

/* ========================
   Cards List (Panel)
   ======================== */
.cards-list {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.card-item {
    background: var(--bg-card);
    border: 1px solid rgba(141, 59, 141, 0.2);
    border-radius: var(--radius-md);
    padding: var(--spacing-md);
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
}

.card-item.default {
    border-color: var(--primary);
}

.card-icon {
    width: 44px;
    height: 44px;
    background: var(--bg-elevated);
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--primary);
}

.card-icon svg {
    width: 24px;
    height: 24px;
}

.card-details {
    flex: 1;
}

.card-name {
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 2px;
}

.card-id {
    font-size: 0.8rem;
    font-family: monospace;
    color: var(--text-muted);
}

.card-badge {
    font-size: 0.65rem;
    padding: 2px 6px;
    background: var(--primary);
    border-radius: var(--radius-sm);
    color: var(--text-primary);
    text-transform: uppercase;
    margin-left: var(--spacing-sm);
}

.card-actions {
    display: flex;
    gap: var(--spacing-xs);
}

.card-action-btn {
    width: 36px;
    height: 36px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--bg-elevated);
    border: none;
    border-radius: var(--radius-sm);
    color: var(--text-secondary);
    cursor: pointer;
    transition: all var(--transition-fast);
}

.card-action-btn:hover {
    background: var(--primary);
    color: var(--text-primary);
}

.card-action-btn.delete:hover {
    background: var(--error);
}

.card-action-btn svg {
    width: 18px;
    height: 18px;
}

/* ========================
   Top-Up Panel
   ======================== */
.topup-balance {
    text-align: center;
    padding: var(--spacing-xl);
    background: linear-gradient(135deg, var(--bg-card) 0%, var(--bg-elevated) 100%);
    border-radius: var(--radius-lg);
    margin-bottom: var(--spacing-xl);
}

.topup-balance-value {
    display: block;
    font-family: var(--font-display);
    font-size: 3rem;
    font-weight: 700;
    color: var(--primary);
    text-shadow: var(--glow-primary);
}

.topup-balance-label {
    font-size: 0.9rem;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.2em;
}

.topup-instruction {
    font-size: 0.9rem;
    color: var(--text-secondary);
    margin-bottom: var(--spacing-md);
    text-align: center;
}

.topup-packages {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-lg);
}

.package-btn {
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: var(--spacing-lg) var(--spacing-md);
    background: var(--bg-card);
    border: 2px solid transparent;
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all var(--transition-fast);
}

.package-btn:hover {
    border-color: var(--primary);
}

.package-btn.selected {
    border-color: var(--primary);
    background: linear-gradient(135deg, var(--primary-dark) 0%, var(--bg-card) 100%);
    box-shadow: var(--glow-primary);
}

.package-credits {
    font-family: var(--font-display);
    font-size: 2rem;
    font-weight: 700;
    color: var(--primary-light);
    line-height: 1;
}

.package-btn.selected .package-credits {
    color: var(--text-primary);
    text-shadow: var(--glow-primary);
}

.package-label {
    font-size: 0.75rem;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.1em;
    margin-top: var(--spacing-xs);
}

.package-price {
    font-size: 0.9rem;
    color: var(--text-secondary);
    margin-top: var(--spacing-sm);
    padding-top: var(--spacing-sm);
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    width: 100%;
    text-align: center;
}

.custom-amount-section {
    margin-bottom: var(--spacing-lg);
    padding-top: var(--spacing-md);
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.custom-amount-label {
    display: block;
    font-size: 0.85rem;
    color: var(--text-secondary);
    margin-bottom: var(--spacing-sm);
    text-align: center;
}

.custom-amount-input {
    display: flex;
    align-items: center;
    background: var(--bg-card);
    border: 2px solid transparent;
    border-radius: var(--radius-md);
    padding: var(--spacing-sm) var(--spacing-md);
    transition: border-color var(--transition-fast);
}

.custom-amount-input:focus-within {
    border-color: var(--primary);
}

.custom-amount-input input {
    flex: 1;
    background: transparent;
    border: none;
    color: var(--text-primary);
    font-family: var(--font-display);
    font-size: 1.5rem;
    font-weight: 600;
    text-align: right;
    outline: none;
    width: 100%;
}

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

.custom-amount-currency {
    font-family: var(--font-display);
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--text-muted);
    margin-left: var(--spacing-sm);
}

.custom-amount-result {
    text-align: center;
    margin-top: var(--spacing-sm);
    font-size: 0.9rem;
    color: var(--primary-light);
    min-height: 1.4em;
}

.topup-summary {
    background: var(--bg-card);
    border-radius: var(--radius-md);
    padding: var(--spacing-md);
    margin-bottom: var(--spacing-lg);
}

.summary-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-sm) 0;
    font-size: 0.9rem;
    color: var(--text-secondary);
}

.summary-row.total {
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    margin-top: var(--spacing-sm);
    padding-top: var(--spacing-md);
    font-weight: 600;
    color: var(--text-primary);
}

#summary-credits {
    font-family: var(--font-display);
    font-weight: 600;
    color: var(--primary-light);
}

#summary-price {
    font-family: var(--font-display);
    font-weight: 700;
}

.btn-pay {
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-md);
    padding: var(--spacing-md) var(--spacing-lg);
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
    border: none;
    border-radius: var(--radius-full);
    color: var(--text-primary);
    font-family: var(--font-display);
    font-size: 1rem;
    font-weight: 600;
    letter-spacing: 0.1em;
    cursor: pointer;
    transition: all var(--transition-normal);
}

.btn-pay:hover:not(:disabled) {
    box-shadow: var(--glow-primary);
}

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

.btn-pay svg {
    width: 22px;
    height: 22px;
}

.payment-info {
    text-align: center;
    font-size: 0.8rem;
    color: var(--text-muted);
    margin-top: var(--spacing-md);
}

/* ========================
   Profile Panel
   ======================== */
.profile-card {
    text-align: center;
    padding: var(--spacing-xl);
    background: linear-gradient(135deg, var(--bg-card) 0%, var(--bg-elevated) 100%);
    border-radius: var(--radius-lg);
    margin-bottom: var(--spacing-xl);
}

.profile-avatar {
    width: 80px;
    height: 80px;
    background: var(--primary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-family: var(--font-display);
    font-size: 2rem;
    font-weight: 700;
    color: var(--text-primary);
    margin: 0 auto var(--spacing-md);
    box-shadow: var(--glow-primary);
}

.profile-card h3 {
    font-family: var(--font-display);
    font-size: 1.2rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: var(--spacing-xs);
}

.profile-card p {
    font-size: 0.9rem;
    color: var(--text-secondary);
}

.profile-stats {
    display: flex;
    justify-content: center;
    gap: var(--spacing-xl);
    margin-bottom: var(--spacing-xl);
}

.stat-item {
    text-align: center;
}

.stat-value {
    display: block;
    font-family: var(--font-display);
    font-size: 2rem;
    font-weight: 700;
    color: var(--primary);
}

.stat-label {
    font-size: 0.8rem;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.1em;
}

.profile-actions {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.btn-action {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-md);
    padding: var(--spacing-md);
    background: var(--bg-card);
    border: 1px solid rgba(141, 59, 141, 0.2);
    border-radius: var(--radius-md);
    color: var(--text-secondary);
    font-size: 0.9rem;
    cursor: pointer;
    transition: all var(--transition-fast);
}

.btn-action:hover {
    border-color: var(--primary);
    color: var(--text-primary);
}

.btn-action svg {
    width: 20px;
    height: 20px;
}

/* ========================
   Modal
   ======================== */
.modal {
    position: fixed;
    inset: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-lg);
    background: rgba(0, 0, 0, 0.8);
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-normal);
    z-index: 400;
}

.modal.open {
    opacity: 1;
    visibility: visible;
}

.modal-content {
    width: 100%;
    max-width: 360px;
    background: var(--bg-surface);
    border-radius: var(--radius-lg);
    padding: var(--spacing-xl);
    transform: translateY(20px);
    transition: transform var(--transition-normal);
}

.modal.open .modal-content {
    transform: translateY(0);
}

.modal-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: var(--spacing-lg);
}

.modal-header h3 {
    font-family: var(--font-display);
    font-size: 1.1rem;
    font-weight: 600;
    letter-spacing: 0.05em;
}

.modal-close {
    width: 36px;
    height: 36px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: none;
    border: none;
    color: var(--text-secondary);
    font-size: 1.5rem;
    cursor: pointer;
    transition: color var(--transition-fast);
}

.modal-close:hover {
    color: var(--error);
}

/* ========================
   Toast Notifications
   ======================== */
#toast-container {
    position: fixed;
    top: calc(var(--safe-top) + var(--spacing-lg));
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
    z-index: 500;
    width: calc(100% - var(--spacing-xl) * 2);
    max-width: 400px;
    pointer-events: none;
}

.toast {
    padding: var(--spacing-md) var(--spacing-lg);
    background: var(--bg-surface);
    border-left: 4px solid var(--primary);
    border-radius: var(--radius-md);
    color: var(--text-primary);
    font-size: 0.9rem;
    box-shadow: var(--shadow-lg);
    animation: toastIn 0.3s ease;
    pointer-events: auto;
}

.toast.success { border-color: var(--success); }
.toast.error { border-color: var(--error); }
.toast.warning { border-color: var(--warning); }

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

/* ========================
   Empty States
   ======================== */
.empty-state {
    text-align: center;
    padding: var(--spacing-xxl);
    color: var(--text-muted);
}

.empty-state svg {
    width: 60px;
    height: 60px;
    margin-bottom: var(--spacing-md);
    opacity: 0.5;
}

.empty-state p {
    margin-bottom: var(--spacing-lg);
}

/* ========================
   Loading States
   ======================== */
.loading-inline {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-xxl);
    color: var(--text-muted);
}

.spinner {
    width: 40px;
    height: 40px;
    border: 3px solid var(--bg-elevated);
    border-top-color: var(--primary);
    border-radius: 50%;
    animation: spin 1s linear infinite;
    margin-bottom: var(--spacing-md);
}

/* ========================
   Utilities
   ======================== */
.hidden {
    display: none !important;
}

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

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