:root {
    --bg-color: #0b0d14;
    --bg-color-rgb: 11, 13, 20;
    --card-color: #131722;
    --card-color-rgb: 19, 23, 34;
    --card-secondary: #1a1f2e;
    --primary-accent: #00e676;
    --primary-accent-rgb: 0, 230, 118;
    --secondary-accent: #00e5ff;
    --text-primary: #ffffff;
    --text-secondary: #a3aabf;
    --border-color: rgba(255, 255, 255, 0.07);
    
    --card-glow: 0 8px 32px 0 rgba(0, 0, 0, 0.4);
    
    --font-family: 'Outfit', sans-serif;
    --border-radius: 20px;
    --soft-shadow: 0 8px 25px rgba(0, 0, 0, 0.35);
}

[data-theme="light"] {
    --bg-color: #f5f7fb;
    --bg-color-rgb: 245, 247, 251;
    --card-color: #ffffff;
    --card-color-rgb: 255, 255, 255;
    --card-secondary: #f0f3f8;
    --primary-accent: #00c853;
    --primary-accent-rgb: 0, 200, 83;
    --secondary-accent: #00b0ff;
    --text-primary: #1e2538;
    --text-secondary: #6c7893;
    --border-color: rgba(0, 0, 0, 0.08);
    
    --card-glow: 0 8px 32px 0 rgba(31, 38, 135, 0.05);
    --soft-shadow: 0 8px 25px rgba(31, 38, 135, 0.06);
}

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

body {
    background-color: #050609;
    color: var(--text-primary);
    font-family: var(--font-family);
    min-height: 100vh;
    display: flex;
    justify-content: center;
    align-items: stretch;
    overflow-x: hidden;
}

/* Centered Mobile Shell for Desktop */
.app-container {
    width: 100%;
    max-width: 480px;
    background-color: var(--bg-color);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    position: relative;
    box-shadow: 0 0 50px rgba(0, 0, 0, 0.6);
    border-left: 1px solid var(--border-color);
    border-right: 1px solid var(--border-color);
    transition: background-color 0.3s, color 0.3s;
}

.app-container.fixed-layout {
    height: 100vh;
    height: 100dvh;
    overflow: hidden;
}

.app-content {
    flex: 1;
    overflow-y: auto;
    padding: 24px 20px 90px 20px; /* offset bottom nav */
    scrollbar-width: none; /* Firefox */
}

.app-content::-webkit-scrollbar {
    display: none; /* Chrome, Safari, Opera */
}

/* Rounded Premium Cards */
.app-card {
    background-color: var(--card-color);
    border-radius: var(--border-radius);
    padding: 20px;
    margin-bottom: 18px;
    border: 1px solid var(--border-color);
    box-shadow: var(--soft-shadow);
    transition: transform 0.25s cubic-bezier(0.4, 0, 0.2, 1), 
                box-shadow 0.25s ease, 
                border-color 0.25s ease, 
                background-color 0.3s;
}

.app-card:hover {
    transform: translateY(-2px);
    border-color: rgba(var(--primary-accent-rgb), 0.35);
    box-shadow: 0 12px 30px rgba(0, 0, 0, 0.45), 0 0 15px rgba(var(--primary-accent-rgb), 0.08);
}

.app-card-secondary {
    background-color: var(--card-secondary);
    border-radius: var(--border-radius);
    padding: 16px;
    margin-bottom: 14px;
    border: 1px solid var(--border-color);
    transition: background-color 0.3s, border-color 0.3s;
}

/* Inputs & Form styling */
.app-input-group {
    margin-bottom: 18px;
}

.app-input-label {
    display: block;
    color: var(--text-secondary);
    font-size: 13px;
    font-weight: 600;
    margin-bottom: 8px;
    letter-spacing: 0.5px;
    text-transform: uppercase;
}

.app-input {
    width: 100%;
    background-color: var(--card-color);
    border: 1px solid var(--border-color);
    color: var(--text-primary);
    border-radius: 14px;
    padding: 14px 18px;
    font-size: 15px;
    outline: none;
    transition: border-color 0.25s ease, box-shadow 0.25s ease;
}

.app-input:focus {
    border-color: var(--primary-accent);
    box-shadow: 0 0 12px rgba(var(--primary-accent-rgb), 0.15);
}

/* Flat Action Button */
.app-btn {
    width: 100%;
    background-color: var(--primary-accent);
    color: #000000;
    border: none;
    border-radius: var(--border-radius);
    padding: 16px;
    font-size: 16px;
    font-weight: 700;
    letter-spacing: 0.5px;
    cursor: pointer;
    transition: transform 0.15s ease, box-shadow 0.2s ease, opacity 0.2s;
    text-align: center;
    text-decoration: none;
    display: block;
    box-shadow: 0 4px 15px rgba(var(--primary-accent-rgb), 0.2);
}

.app-btn:hover, .app-btn:focus {
    opacity: 0.95;
    color: #000000;
    box-shadow: 0 6px 20px rgba(var(--primary-accent-rgb), 0.35);
}

.app-btn:active {
    transform: scale(0.97);
}

.app-btn-secondary {
    background: transparent;
    color: var(--text-primary);
    border: 1px solid var(--border-color);
    box-shadow: none;
}

.app-btn-secondary:hover {
    background-color: var(--card-secondary);
    color: var(--text-primary);
    box-shadow: none;
}

.app-btn-danger {
    background-color: #ff5252;
    color: #FFFFFF;
    box-shadow: 0 4px 15px rgba(255, 82, 82, 0.2);
}

.app-btn-danger:hover {
    color: #FFFFFF;
    box-shadow: 0 6px 20px rgba(255, 82, 82, 0.3);
}

/* Bottom Navigation Bar (Glassmorphic & Floating) */
.bottom-nav {
    position: fixed;
    bottom: 12px;
    left: 50%;
    transform: translateX(-50%);
    width: calc(100% - 24px);
    max-width: 456px;
    height: 70px;
    background-color: rgba(var(--card-color-rgb), 0.85);
    backdrop-filter: blur(15px);
    -webkit-backdrop-filter: blur(15px);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    display: flex;
    justify-content: space-around;
    align-items: center;
    z-index: 999;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.4);
}

.bottom-nav .nav-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-decoration: none;
    color: var(--text-secondary);
    font-size: 11px;
    font-weight: 600;
    transition: color 0.25s, transform 0.2s;
    padding: 8px 12px;
    flex: 1;
}

.bottom-nav .nav-item i {
    font-size: 22px;
    margin-bottom: 4px;
    transition: transform 0.2s ease;
}

.bottom-nav .nav-item:hover i {
    transform: translateY(-2px);
}

.bottom-nav .nav-item.active {
    color: var(--primary-accent);
}

.bottom-nav .nav-item.active i {
    transform: translateY(-2px) scale(1.1);
}

/* Headers */
.app-header {
    padding: 18px 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-bottom: 1px solid var(--border-color);
    background-color: var(--bg-color);
}

.app-title {
    font-size: 18px;
    font-weight: 700;
    color: var(--text-primary);
    letter-spacing: 0.5px;
}

/* Badge values and accents */
.text-accent {
    color: var(--primary-accent) !important;
    font-weight: 700;
}

.text-secondary-custom {
    color: var(--text-secondary);
}

/* Numeric keypad for PIN */
.pin-pad {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 15px;
    max-width: 320px;
    margin: 20px auto 0 auto;
}

.pin-btn {
    aspect-ratio: 1;
    background-color: var(--card-color);
    border: 1px solid var(--border-color);
    color: var(--text-primary);
    border-radius: 50%;
    font-size: 24px;
    font-weight: 500;
    display: flex;
    justify-content: center;
    align-items: center;
    cursor: pointer;
    outline: none;
    transition: background-color 0.1s;
}

.pin-btn:active {
    background-color: var(--card-secondary);
}

.pin-dots {
    display: flex;
    justify-content: center;
    gap: 16px;
    margin: 24px 0;
}

.pin-dot {
    width: 14px;
    height: 14px;
    border-radius: 50%;
    border: 2px solid var(--border-color);
    transition: background-color 0.2s, border-color 0.2s;
}

.pin-dot.filled {
    background-color: var(--primary-accent);
    border-color: var(--primary-accent);
}

/* Presets grid */
.presets-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 10px;
    margin-bottom: 16px;
}

.preset-btn {
    background-color: var(--card-color);
    border: 1px solid var(--border-color);
    color: var(--text-primary);
    border-radius: 12px;
    padding: 12px 6px;
    font-weight: 600;
    font-size: 14px;
    cursor: pointer;
    text-align: center;
    transition: all 0.2s;
}

.preset-btn.active {
    border-color: var(--primary-accent);
    background-color: rgba(0, 200, 83, 0.1);
    color: var(--primary-accent);
}

/* Countdown Timers */
.timer-box {
    display: inline-flex;
    align-items: center;
    background-color: rgba(255, 82, 82, 0.1);
    color: #FF5252;
    padding: 6px 12px;
    border-radius: 8px;
    font-weight: 600;
    font-size: 15px;
    margin-top: 5px;
}

.timer-box i {
    margin-right: 6px;
}

/* Bottom sheets & Modals (Fixed to mockup screen viewport) */
.bottom-sheet-backdrop {
    position: fixed;
    top: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 100%;
    max-width: 480px;
    height: 100vh;
    background-color: rgba(0,0,0,0.6);
    z-index: 1050;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.3s ease;
}

.bottom-sheet-backdrop.show {
    opacity: 1;
    pointer-events: auto;
}

.bottom-sheet {
    position: fixed;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%) translateY(100%);
    width: 100%;
    max-width: 480px;
    background-color: var(--card-color);
    border-top-left-radius: 24px;
    border-top-right-radius: 24px;
    border-top: 1px solid var(--border-color);
    padding: 24px 20px;
    z-index: 1060;
    transition: transform 0.3s ease-out;
    max-height: 80%;
    overflow-y: auto;
}

.bottom-sheet.show {
    transform: translateX(-50%) translateY(0);
}

.bottom-sheet-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 20px;
}

/* Switch theme trigger */
.theme-switch {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background-color: var(--card-color);
    border: 1px solid var(--border-color);
    color: var(--text-primary);
    display: flex;
    justify-content: center;
    align-items: center;
    cursor: pointer;
}

/* Toast notifications */
.app-toast {
    position: absolute;
    top: 20px;
    left: 50%;
    transform: translateX(-50%);
    background-color: var(--card-color);
    border-left: 4px solid var(--primary-accent);
    padding: 12px 20px;
    border-radius: 8px;
    color: var(--text-primary);
    font-size: 14px;
    box-shadow: 0 4px 15px rgba(0,0,0,0.5);
    z-index: 1100;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.3s;
}

.app-toast.show {
    opacity: 1;
}

/* Slider Banners */
.slider-container {
    width: 100%;
    height: 130px;
    border-radius: var(--border-radius);
    overflow: hidden;
    margin-bottom: 16px;
    position: relative;
    border: 1px solid var(--border-color);
}

.slider-slide {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: none;
}

.slider-slide.active {
    display: block;
}

/* Lists and details */
.list-item-link {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 14px 0;
    border-bottom: 1px solid var(--border-color);
    color: var(--text-primary);
    text-decoration: none;
}

.list-item-link:last-child {
    border-bottom: none;
}

.list-item-link i {
    color: var(--text-secondary);
}

.list-item-link:hover {
    color: var(--primary-accent);
}

/* Utilities */
.w-full {
    width: 100%;
}

.flex {
    display: flex;
}

.flex-col {
    flex-direction: column;
}

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

.justify-between {
    justify-content: space-between;
}

.gap-2 {
    gap: 8px;
}

.mb-4 {
    margin-bottom: 16px;
}

.mr-2 {
    margin-right: 8px;
}

/* Onboarding screen dot active styling */
.dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background-color: var(--border-color);
}
.dot.active {
    background-color: var(--primary-accent);
    width: 20px;
    border-radius: 4px;
}

/* Tab selector */
.tabs-container {
    display: flex;
    background-color: var(--card-color);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 4px;
    margin-bottom: 16px;
}

.tab-item {
    flex: 1;
    padding: 10px;
    text-align: center;
    border-radius: 8px;
    cursor: pointer;
    font-weight: 600;
    color: var(--text-secondary);
    transition: all 0.2s;
}

.tab-item.active {
    background-color: var(--card-secondary);
    color: var(--primary-accent);
}

/* Splash screen styling */
.splash-logo-container {
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    flex: 1;
    animation: fadeIn 0.8s ease-out;
}

.splash-logo {
    width: 90px;
    height: 90px;
    background-color: rgba(var(--primary-accent-rgb), 0.12);
    border-radius: 24px;
    display: flex;
    justify-content: center;
    align-items: center;
    margin-bottom: 18px;
    box-shadow: 0 8px 25px rgba(var(--primary-accent-rgb), 0.2);
    border: 1.5px solid rgba(var(--primary-accent-rgb), 0.25);
    animation: pulseGlow 2.5s infinite ease-in-out;
    transition: transform 0.3s;
}

.splash-logo:hover {
    transform: rotate(5deg) scale(1.05);
}

.splash-logo i {
    font-size: 48px;
    color: var(--primary-accent);
}

/* Animations */
@keyframes pulseGlow {
    0%, 100% {
        transform: scale(1);
        box-shadow: 0 8px 25px rgba(var(--primary-accent-rgb), 0.15);
        border-color: rgba(var(--primary-accent-rgb), 0.2);
    }
    50% {
        transform: scale(1.04);
        box-shadow: 0 12px 35px rgba(var(--primary-accent-rgb), 0.35);
        border-color: rgba(var(--primary-accent-rgb), 0.6);
    }
}

@keyframes float {
    0%, 100% {
        transform: translateY(0) rotate(0deg);
    }
    50% {
        transform: translateY(-8px) rotate(3deg);
    }
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Subtle border animation for fields */
.app-input:focus {
    animation: borderPulse 1.5s infinite ease-in-out;
}

@keyframes borderPulse {
    0%, 100% { border-color: var(--primary-accent); }
    50% { border-color: var(--secondary-accent); }
}

/* Global Page transition loader overlay */
.page-loader {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(var(--bg-color-rgb), 0.85);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    z-index: 10000;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.22s ease-in-out;
}

.page-loader.show {
    opacity: 1;
    pointer-events: auto;
}