/**
 * SCOOTERBIKE PRO — MODERN PREMIUM DESIGN SYSTEM & MOTION ENGINE
 * Unified Design Tokens, Component Primitives, Elevations, Typography, & Micro-Interactions
 */

:root {
    /* 1. BRAND COLOR SPECTRUM & DESIGN TOKENS */
    --primary: #FF6A00;
    --primary-hover: #E65100;
    --primary-light: #FFF7ED;
    --primary-border: rgba(255, 106, 0, 0.3);
    --primary-glow: rgba(255, 106, 0, 0.18);

    --secondary: #0E2A4D;
    --secondary-hover: #173F6B;
    --secondary-light: #F0F5FA;

    --accent: #FF9143;
    --accent-light: #FFEBD6;

    --brand-navy-950: #071527;
    --brand-navy-900: #0E2A4D;
    --brand-navy-800: #173F6B;
    --brand-navy-700: #235894;
    --brand-navy-600: #2E6DAE;
    --brand-navy-100: #E2ECF8;
    --brand-navy-50:  #F0F5FA;

    --surface-canvas: #F8FAFC;
    --surface-card: #FFFFFF;
    --surface-hover: #F1F5F9;
    --surface-border: #E2E8F0;
    --surface-border-subtle: rgba(14, 42, 77, 0.06);
    --surface-border-strong: rgba(14, 42, 77, 0.14);

    --text-primary: #0F172A;
    --text-secondary: #64748B;
    --text-tertiary: #94A3B8;
    --text-inverse: #FFFFFF;

    /* Semantic Status Colors */
    --success: #10B981;
    --success-light: #ECFDF5;
    --success-text: #065F46;
    --success-border: #A7F3D0;

    --warning: #F59E0B;
    --warning-light: #FFFBEB;
    --warning-text: #92400E;
    --warning-border: #FDE68A;

    --danger: #EF4444;
    --danger-light: #FEF2F2;
    --danger-text: #991B1B;
    --danger-border: #FECACA;

    --info: #3B82F6;
    --info-light: #EFF6FF;
    --info-text: #1E40AF;
    --info-border: #BFDBFE;

    /* 2. TYPOGRAPHY SYSTEM */
    --font-heading: 'Plus Jakarta Sans', system-ui, -apple-system, sans-serif;
    --font-body: 'Plus Jakarta Sans', 'Hind Siliguri', system-ui, sans-serif;
    --font-bengali: 'Hind Siliguri', system-ui, sans-serif;
    --font-mono: 'JetBrains Mono', ui-monospace, Menlo, Monaco, Consolas, monospace;

    /* 3. ELEVATION & SOFT SHADOW SYSTEM */
    --shadow-sm: 0 1px 2px 0 rgba(14, 42, 77, 0.04);
    --shadow-card: 0 1px 3px 0 rgba(14, 42, 77, 0.05), 0 1px 2px -1px rgba(14, 42, 77, 0.05);
    --shadow-card-hover: 0 10px 25px -3px rgba(14, 42, 77, 0.08), 0 4px 6px -4px rgba(14, 42, 77, 0.03);
    --shadow-dropdown: 0 10px 15px -3px rgba(14, 42, 77, 0.1), 0 4px 6px -4px rgba(14, 42, 77, 0.05);
    --shadow-modal: 0 25px 50px -12px rgba(14, 42, 77, 0.25);
    --shadow-glow-primary: 0 4px 20px -2px rgba(255, 106, 0, 0.32);

    /* 4. MOTION, EASINGS & DURATIONS */
    --ease-standard: cubic-bezier(0.16, 1, 0.3, 1);
    --ease-out-back: cubic-bezier(0.34, 1.56, 0.64, 1);
    --duration-fast: 160ms;
    --duration-normal: 250ms;
    --duration-slow: 380ms;

    /* 5. RADIUS SCALE */
    --radius-sm: 0.375rem; /* 6px */
    --radius-md: 0.625rem; /* 10px */
    --radius-lg: 0.875rem; /* 14px */
    --radius-xl: 1.25rem;  /* 20px */
    --radius-full: 9999px;
}

/* BASE RESETS & TYPOGRAPHY */
html {
    scroll-behavior: smooth;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    font-family: var(--font-body);
    background-color: var(--surface-canvas);
    color: var(--text-primary);
    line-height: 1.5;
}

h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-heading);
    letter-spacing: -0.025em;
}

.font-mono, .tabular-nums {
    font-family: var(--font-mono);
    font-variant-numeric: tabular-nums;
}

/* ==========================================================================
   COMPONENT STYLES: MODERN CARDS & PANELS
   ========================================================================== */
.card-modern {
    background: var(--surface-card);
    border: 1px solid var(--surface-border);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-card);
    transition: transform var(--duration-normal) var(--ease-standard),
                box-shadow var(--duration-normal) var(--ease-standard),
                border-color var(--duration-normal) var(--ease-standard);
}

.card-interactive {
    cursor: pointer;
}
.card-interactive:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-card-hover);
    border-color: rgba(14, 42, 77, 0.16);
}

.card-kpi {
    background: var(--surface-card);
    border: 1px solid var(--surface-border);
    border-radius: var(--radius-lg);
    padding: 1.25rem;
    box-shadow: var(--shadow-card);
    transition: all var(--duration-normal) var(--ease-standard);
    position: relative;
    overflow: hidden;
}
.card-kpi::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, transparent, transparent);
    transition: background var(--duration-normal) var(--ease-standard);
}
.card-kpi:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-card-hover);
}
.card-kpi:hover::before {
    background: linear-gradient(90deg, var(--primary), var(--accent));
}

/* ==========================================================================
   COMPONENT STYLES: BUTTON SYSTEM
   ========================================================================== */
.btn-modern {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    font-family: var(--font-heading);
    font-weight: 700;
    font-size: 0.8125rem;
    line-height: 1.25rem;
    padding: 0.625rem 1.125rem;
    border-radius: var(--radius-md);
    border: 1px solid transparent;
    cursor: pointer;
    text-decoration: none;
    white-space: nowrap;
    transition: all var(--duration-fast) var(--ease-standard);
    user-select: none;
}
.btn-modern:active {
    transform: scale(0.98);
}
.btn-modern:disabled {
    opacity: 0.55;
    cursor: not-allowed;
    pointer-events: none;
}

.btn-primary-modern {
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-hover) 100%);
    color: #FFFFFF;
    box-shadow: 0 2px 8px rgba(255, 106, 0, 0.25);
}
.btn-primary-modern:hover {
    background: linear-gradient(135deg, #FF7B1A 0%, #E65100 100%);
    box-shadow: var(--shadow-glow-primary);
    transform: translateY(-1px);
}

.btn-secondary-modern {
    background: var(--brand-navy-900);
    color: #FFFFFF;
    box-shadow: 0 2px 8px rgba(14, 42, 77, 0.2);
}
.btn-secondary-modern:hover {
    background: var(--brand-navy-800);
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(14, 42, 77, 0.25);
}

.btn-outline-modern {
    background: transparent;
    border-color: var(--surface-border);
    color: var(--text-primary);
}
.btn-outline-modern:hover {
    background: var(--surface-hover);
    border-color: rgba(14, 42, 77, 0.2);
    transform: translateY(-1px);
}

.btn-ghost-modern {
    background: transparent;
    color: var(--text-secondary);
}
.btn-ghost-modern:hover {
    background: var(--surface-hover);
    color: var(--text-primary);
}

.btn-danger-modern {
    background: var(--danger-light);
    color: var(--danger-text);
    border-color: var(--danger-border);
}
.btn-danger-modern:hover {
    background: #FEE2E2;
    border-color: #FCA5A5;
}

/* ==========================================================================
   COMPONENT STYLES: MODERN TABLES
   ========================================================================== */
.table-container-modern {
    background: var(--surface-card);
    border: 1px solid var(--surface-border);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-card);
    overflow: hidden;
}

.table-modern {
    width: 100%;
    border-collapse: separate;
    border-spacing: 0;
    text-align: left;
    font-size: 0.8125rem;
}

.table-modern thead th {
    background: #F8FAFC;
    color: var(--text-secondary);
    font-size: 0.6875rem;
    font-weight: 800;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    padding: 0.75rem 1rem;
    border-bottom: 1px solid var(--surface-border);
}

.table-modern tbody tr {
    transition: background-color var(--duration-fast) var(--ease-standard);
}
.table-modern tbody tr:hover {
    background-color: #F8FAFC;
}
.table-modern tbody td {
    padding: 0.875rem 1rem;
    border-bottom: 1px solid var(--surface-border);
    color: var(--text-primary);
    vertical-align: middle;
}
.table-modern tbody tr:last-child td {
    border-bottom: none;
}

/* ==========================================================================
   COMPONENT STYLES: FORM INPUTS & CONTROLS
   ========================================================================== */
.input-modern {
    width: 100%;
    background: #FFFFFF;
    border: 1.5px solid var(--surface-border);
    border-radius: var(--radius-md);
    padding: 0.5625rem 0.875rem;
    font-size: 0.8125rem;
    color: var(--text-primary);
    outline: none;
    transition: border-color var(--duration-fast) var(--ease-standard),
                box-shadow var(--duration-fast) var(--ease-standard);
}
.input-modern:focus {
    border-color: var(--primary);
    box-shadow: 0 0 0 3px var(--primary-glow);
}
.input-modern::placeholder {
    color: var(--text-tertiary);
}

.label-modern {
    display: block;
    font-size: 0.75rem;
    font-weight: 700;
    color: var(--text-secondary);
    margin-bottom: 0.375rem;
    text-transform: uppercase;
    letter-spacing: 0.025em;
}

/* ==========================================================================
   COMPONENT STYLES: STATUS PILLS & BADGES
   ========================================================================== */
.badge-pill {
    display: inline-flex;
    align-items: center;
    gap: 0.375rem;
    padding: 0.25rem 0.625rem;
    border-radius: var(--radius-full);
    font-size: 0.6875rem;
    font-weight: 700;
    letter-spacing: 0.025em;
    line-height: 1;
}

.badge-success {
    background: var(--success-light);
    color: var(--success-text);
    border: 1px solid var(--success-border);
}
.badge-warning {
    background: var(--warning-light);
    color: var(--warning-text);
    border: 1px solid var(--warning-border);
}
.badge-danger {
    background: var(--danger-light);
    color: var(--danger-text);
    border: 1px solid var(--danger-border);
}
.badge-info {
    background: var(--info-light);
    color: var(--info-text);
    border: 1px solid var(--info-border);
}
.badge-neutral {
    background: #F1F5F9;
    color: #475569;
    border: 1px solid #E2E8F0;
}

/* ==========================================================================
   ANIMATIONS & SKELETON LOADERS
   ========================================================================== */
@keyframes shimmerAnim {
    0% { background-position: -200% 0; }
    100% { background-position: 200% 0; }
}

.skeleton-shimmer {
    background: linear-gradient(90deg, #F1F5F9 25%, #E2E8F0 50%, #F1F5F9 75%);
    background-size: 200% 100%;
    animation: shimmerAnim 1.6s infinite ease-in-out;
    border-radius: var(--radius-sm);
}

@keyframes pulseBeacon {
    0%, 100% { transform: scale(1); opacity: 1; }
    50% { transform: scale(1.3); opacity: 0.6; }
}
.beacon-pulse {
    animation: pulseBeacon 2s cubic-bezier(0.4, 0, 0.6, 1) infinite;
}

/* ==========================================================================
   TOAST NOTIFICATION ANIMATION
   ========================================================================== */
@keyframes toastSlideIn {
    from {
        opacity: 0;
        transform: translateY(-12px) scale(0.96);
    }
    to {
        opacity: 1;
        transform: translateY(0) scale(1);
    }
}
.toast-animated {
    animation: toastSlideIn var(--duration-normal) var(--ease-out-back) forwards;
}

/* ==========================================================================
   ACCESSIBILITY: PREFERS-REDUCED-MOTION
   ========================================================================== */
@media (prefers-reduced-motion: reduce) {
    *, ::before, ::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
        scroll-behavior: auto !important;
    }
    .skeleton-shimmer {
        animation: none !important;
        background: #E2E8F0 !important;
    }
}