/* Apple Design System - Samsung Wallet Clone */
/* San Francisco Font Stack */
:root {
    --sf-font: -apple-system, BlinkMacSystemFont, "SF Pro Display", "SF Pro Text", "Helvetica Neue", sans-serif;
    --primary-bg: #F2F2F7;
    --card-bg: #FFFFFF;
    --text-primary: #000000;
    --text-secondary: #8E8E93;
    --text-tertiary: #C7C7CC;
    --border-color: #E5E5EA;
    --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.06);
    --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.08);
    --shadow-lg: 0 12px 40px rgba(0, 0, 0, 0.12);
    --blur-effect: blur(20px);
    --transition-fast: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-smooth: 0.35s cubic-bezier(0.4, 0, 0.2, 1);
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    -webkit-tap-highlight-color: transparent;
    -webkit-touch-callout: none;
    user-select: none;
}

html, body {
    width: 100%;
    height: 100%;
    overflow: hidden;
    font-family: var(--sf-font);
    background: var(--primary-bg);
    color: var(--text-primary);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    touch-action: pan-y;
}

body {
    display: flex;
    flex-direction: column;
    padding: env(safe-area-inset-top) env(safe-area-inset-right) env(safe-area-inset-bottom) env(safe-area-inset-left);
    /* Force landscape orientation layout */
    min-height: 100vh;
    position: relative;
}

/* Header - Frosted Glass Effect */
.header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 20px 24px;
    background: rgba(242, 242, 247, 0.85);
    backdrop-filter: var(--blur-effect);
    -webkit-backdrop-filter: var(--blur-effect);
    border-bottom: 0.5px solid var(--border-color);
    position: sticky;
    top: 0;
    z-index: 99;
}

.header-title {
    font-size: 28px;
    font-weight: 700;
    letter-spacing: -0.5px;
    flex: 1;
}

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

.header-btn:active {
    background: rgba(0, 0, 0, 0.06);
    transform: scale(0.95);
}

/* Main Content */
.main-content {
    flex: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 20px;
    overflow: hidden;
    position: relative;
}

/* Cards Container - Vertical List */
.cards-container {
    display: flex;
    flex-direction: column;
    gap: 20px;
    width: 100%;
    padding: 20px;
    overflow-y: auto;
    overflow-x: hidden;
    -webkit-overflow-scrolling: touch;
    scrollbar-width: none;
    -ms-overflow-style: none;
    box-sizing: border-box;
}

.cards-container::-webkit-scrollbar {
    display: none;
}

/* Card Wrapper - List Item */
.card-wrapper {
    flex-shrink: 0;
    transition: all var(--transition-smooth);
    cursor: pointer;
    opacity: 0;
    transform: translateY(20px);
    animation: cardSlideIn 0.5s ease-out forwards;
}

.card-wrapper[data-card="1"] {
    animation-delay: 0.05s;
}

.card-wrapper[data-card="2"] {
    animation-delay: 0.1s;
}

.card-wrapper[data-card="3"] {
    animation-delay: 0.15s;
}

.card-wrapper[data-card="4"] {
    animation-delay: 0.2s;
}

.card-wrapper[data-card="5"] {
    animation-delay: 0.25s;
}

.card-wrapper[data-card="6"] {
    animation-delay: 0.3s;
}

.card-wrapper:active {
    transform: scale(0.98);
}

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

/* Card Styles */
.card {
    width: 100%;
    height: 0;
    padding-bottom: 63.05%; /* Credit card aspect ratio: 1:1.586 (or 63.05% height to width) */
    padding-top: 24px;
    padding-left: 24px;
    padding-right: 24px;
    border-radius: 20px;
    position: relative;
    overflow: hidden;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.15), 0 2px 8px rgba(0, 0, 0, 0.1);
    transition: all var(--transition-smooth);
    cursor: pointer;
    color: white;
    will-change: transform;
    box-sizing: border-box;
}

/* Card inner container to position elements */
.card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, rgba(255, 255, 255, 0.1) 0%, rgba(255, 255, 255, 0) 100%);
    pointer-events: none;
}

/* Card Elements - Adjusted for aspect ratio */
.card-chip,
.card-nfc,
.card-bank,
.card-number,
.card-holder,
.card-expiry,
.card-logo {
    position: absolute;
}

.card-chip {
    top: 20px;
    left: 24px;
}

.card-nfc {
    top: 20px;
    right: 24px;
}

.card-bank {
    top: 50%;
    left: 24px;
    transform: translateY(-50%);
    margin-top: -20px;
}

.card-number {
    bottom: 56px;
    left: 24px;
}

.card-holder {
    bottom: 20px;
    left: 24px;
}

.card-expiry {
    bottom: 20px;
    right: 90px;
}

.card-logo {
    bottom: 16px;
    right: 24px;
}

.card-label {
    font-size: 9px;
    font-weight: 600;
    letter-spacing: 0.5px;
    opacity: 0.7;
    text-transform: uppercase;
    margin-bottom: 4px;
}

.card-name,
.card-date {
    font-size: 13px;
    font-weight: 600;
    letter-spacing: 0.5px;
}

.card-logo {
    opacity: 0.9;
}

.card-bank {
    font-size: 13px;
    font-weight: 700;
    letter-spacing: 1.5px;
    opacity: 0.9;
}

.card-number {
    font-size: 22px;
    font-weight: 500;
    letter-spacing: 2px;
    font-variant-numeric: tabular-nums;
}



/* Action Bar - Glassmorphism */
.action-bar {
    display: flex;
    gap: 12px;
    padding: 16px 20px;
    background: rgba(255, 255, 255, 0.85);
    backdrop-filter: var(--blur-effect);
    -webkit-backdrop-filter: var(--blur-effect);
    border-top: 0.5px solid var(--border-color);
    box-shadow: 0 -4px 20px rgba(0, 0, 0, 0.04);
}

.action-btn {
    flex: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 6px;
    padding: 12px;
    border: none;
    background: var(--card-bg);
    border-radius: 14px;
    cursor: pointer;
    transition: all var(--transition-fast);
    box-shadow: var(--shadow-sm);
    color: var(--text-primary);
}

.action-btn:active {
    transform: scale(0.96);
    background: var(--primary-bg);
}

.action-btn span {
    font-size: 12px;
    font-weight: 600;
    letter-spacing: -0.12px;
}

/* Home Indicator - iOS Style */
.home-indicator {
    width: 140px;
    height: 5px;
    background: rgba(0, 0, 0, 0.3);
    border-radius: 3px;
    margin: 8px auto 12px;
}

/* Touch Interactions */
@media (hover: none) and (pointer: coarse) {
    .card:active {
        transform: scale(0.98);
    }
    
    .header-btn:active,
    .action-btn:active {
        opacity: 0.7;
    }
}

/* Landscape Optimization */
@media (orientation: landscape) {
    body {
        justify-content: space-between;
    }
    
    .main-content {
        padding: 16px 40px;
    }
    
    .cards-container {
        padding: 20px 40px;
    }
}

/* Portrait mode adjustments */
@media (orientation: portrait) {
    .cards-container {
        padding: 20px 16px;
    }
}

/* Very Small Landscape Screens */
@media (max-height: 400px) {
    .header {
        padding: 12px 20px;
    }
    
    .header-title {
        font-size: 22px;
    }
    
    .cards-container {
        padding: 16px 20px;
        gap: 16px;
    }
    
    .card-chip svg,
    .card-nfc svg {
        width: 32px;
        height: auto;
    }
    
    .card-number {
        font-size: 18px;
    }
    
    .card-bank {
        font-size: 11px;
    }
    
    .card-logo svg {
        width: 50px;
        height: auto;
    }
    
    .action-bar {
        padding: 12px 16px;
    }
}



/* Hover and active effects */
.card-wrapper:hover {
    transform: translateY(-4px);
}

.card:hover {
    box-shadow: 0 12px 48px rgba(0, 0, 0, 0.2), 0 4px 12px rgba(0, 0, 0, 0.15);
}

/* Smooth momentum scrolling */
.cards-container {
    scroll-behavior: smooth;
}

/* iOS Momentum Scrolling */
* {
    -webkit-overflow-scrolling: touch;
}

/* Prevent Overscroll */
body {
    overscroll-behavior: none;
}

/* Focus Visible for Accessibility */
*:focus-visible {
    outline: 2px solid #0066CC;
    outline-offset: 2px;
}

/* Enhanced Touch Targets */
.header-btn,
.action-btn {
    min-width: 44px;
    min-height: 44px;
}

/* Safe Area Adjustments */
@supports (padding: env(safe-area-inset-bottom)) {
    .action-bar {
        padding-bottom: calc(16px + env(safe-area-inset-bottom));
    }
    
    .home-indicator {
        margin-bottom: calc(12px + env(safe-area-inset-bottom));
    }
}