/* ReliefLink - Disaster Relief Management System */
/* Sophisticated Modern Design System */

:root {
    /* Color Palette */
    --primary: #0052cc;
    --primary-hover: #0747a6;
    --secondary: #6b778c;
    --success: #36b37e;
    --warning: #ffab00;
    --danger: #ff5630;
    --info: #00b8d9;
    
    /* Neutral Colors */
    --bg-main: #f4f5f7;
    --bg-card: #ffffff;
    --bg-sidebar: #0747a6;
    --text-main: #172b4d;
    --text-subtle: #5e6c84;
    --text-on-primary: #ffffff;
    --border: #dfe1e6;
    --input-focus: #4c9aff;
    
    /* UI Elements */
    --radius-sm: 4px;
    --radius-md: 8px;
    --radius-lg: 12px;
    --shadow-sm: 0 1px 2px rgba(9, 30, 66, 0.08);
    --shadow-md: 0 4px 8px -2px rgba(9, 30, 66, 0.25), 0 0 1px rgba(9, 30, 66, 0.31);
    --shadow-lg: 0 12px 24px -6px rgba(9, 30, 66, 0.25), 0 0 1px rgba(9, 30, 66, 0.31);
    --transition: all 0.2s cubic-bezier(0.15, 0, 0.5, 1);
    
    /* Spacing */
    --space-xs: 4px;
    --space-sm: 8px;
    --space-md: 16px;
    --space-lg: 24px;
    --space-xl: 32px;
}

/* ===== RESET & BASE ===== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
    color: var(--text-main);
    background-color: var(--bg-main);
    line-height: 1.5;
    -webkit-font-smoothing: antialiased;
}

h1, h2, h3, h4, h5, h6 {
    color: var(--text-main);
    font-weight: 600;
    letter-spacing: -0.01em;
}

a {
    color: var(--primary);
    text-decoration: none;
    transition: var(--transition);
}

a:hover {
    color: var(--primary-hover);
    text-decoration: underline;
}

/* ===== LAYOUT COMPONENTS ===== */

/* Auth Pages (Login/Register) */
.auth-page {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 100vh;
    background-color: #f7f9fc;
    background-image: radial-gradient(circle at 2px 2px, #dfe1e6 1px, transparent 0);
    background-size: 40px 40px;
}

.auth-container {
    width: 100%;
    max-width: 440px;
    padding: var(--space-lg);
}

.auth-card {
    background: var(--bg-card);
    border-radius: var(--radius-lg);
    padding: var(--space-xl);
    box-shadow: var(--shadow-lg);
    border: 1px solid var(--border);
}

.auth-header {
    text-align: center;
    margin-bottom: var(--space-xl);
}

.auth-header h1 {
    font-size: 24px;
    margin-bottom: var(--space-sm);
    color: #172b4d;
}

.auth-header p {
    color: var(--text-subtle);
    font-size: 14px;
}

/* Dashboard Layout */
.dashboard-wrapper {
    display: flex;
    min-height: 100vh;
}

.sidebar {
    width: 260px;
    background-color: var(--bg-sidebar);
    color: var(--text-on-primary);
    display: flex;
    flex-direction: column;
    position: fixed;
    height: 100vh;
    z-index: 100;
    transition: var(--transition);
}

.sidebar-header {
    padding: var(--space-xl) var(--space-lg);
    display: flex;
    align-items: center;
    gap: var(--space-sm);
}

.sidebar-brand {
    font-size: 20px;
    font-weight: 700;
    letter-spacing: 0.5px;
    text-transform: uppercase;
}

.sidebar-menu {
    flex: 1;
    list-style: none;
    padding: var(--space-sm);
}

.sidebar-menu li {
    margin-bottom: 2px;
}

.sidebar-menu a {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 10px 16px;
    color: rgba(255, 255, 255, 0.7);
    border-radius: var(--radius-sm);
    font-weight: 500;
    font-size: 14px;
    text-decoration: none;
}

.sidebar-menu a:hover, .sidebar-menu a.active {
    background-color: rgba(255, 255, 255, 0.1);
    color: #ffffff;
}

.sidebar-footer {
    padding: var(--space-lg);
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.main-content {
    flex: 1;
    margin-left: 260px;
    padding: var(--space-xl);
}

.top-nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--space-xl);
}

/* ===== UI ELEMENTS ===== */

/* Cards */
.card {
    background: var(--bg-card);
    border-radius: var(--radius-md);
    padding: var(--space-lg);
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--border);
    margin-bottom: var(--space-lg);
}

.card-title {
    font-size: 16px;
    font-weight: 600;
    margin-bottom: var(--space-md);
    display: flex;
    align-items: center;
    justify-content: space-between;
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 10px 20px;
    border-radius: var(--radius-sm);
    font-size: 14px;
    font-weight: 500;
    cursor: pointer;
    transition: var(--transition);
    border: none;
    gap: 8px;
}

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

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

.btn-block {
    display: flex;
    width: 100%;
}

/* Form Controls */
.form-group {
    margin-bottom: var(--space-md);
}

.form-label {
    display: block;
    font-size: 12px;
    font-weight: 600;
    color: var(--text-subtle);
    margin-bottom: 4px;
    text-transform: uppercase;
}

.form-control {
    width: 100%;
    padding: 10px 12px;
    border-radius: var(--radius-sm);
    border: 1px solid var(--border);
    background-color: #f4f5f7;
    font-size: 14px;
    transition: var(--transition);
}

.form-control:focus {
    outline: none;
    border-color: var(--input-focus);
    background-color: #ffffff;
    box-shadow: 0 0 0 2px rgba(76, 154, 255, 0.2);
}

/* Hide Microsoft Edge / IE default eye reveal button on password fields */
::-ms-reveal,
::-ms-clear {
    display: none !important;
}

/* Badges */
.badge {
    padding: 2px 8px;
    border-radius: 12px;
    font-size: 11px;
    font-weight: 700;
    text-transform: uppercase;
}

.badge-danger { background: #ffebe6; color: #bf2600; }
.badge-warning { background: #fffae6; color: #ff8b00; }
.badge-success { background: #e3fcef; color: #006644; }
.badge-info { background: #deebff; color: #0747a6; }

/* Metrics Grid */
.metrics-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: var(--space-lg);
    margin-bottom: var(--space-xl);
}

.metric-card {
    padding: var(--space-lg);
    background: var(--bg-card);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-sm);
    border-left: 4px solid var(--primary);
}

.metric-value {
    font-size: 32px;
    font-weight: 700;
    color: var(--text-main);
    line-height: 1;
    margin: 8px 0;
}

.metric-label {
    font-size: 12px;
    font-weight: 600;
    color: var(--text-subtle);
    text-transform: uppercase;
}

/* Tables */
.table-container {
    overflow-x: auto;
}

table {
    width: 100%;
    border-collapse: collapse;
}

th {
    text-align: left;
    padding: 12px 16px;
    font-size: 12px;
    font-weight: 600;
    color: var(--text-subtle);
    border-bottom: 2px solid var(--border);
    text-transform: uppercase;
}

td {
    padding: 14px 16px;
    font-size: 14px;
    border-bottom: 1px solid var(--border);
    color: var(--text-main);
}

tr:hover td {
    background-color: #f4f5f7;
}

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

.animate-fade-in {
    animation: fadeIn 0.4s ease-out forwards;
}

/* Map Animations */
@keyframes hazardPulse {
    0% { transform: scale(0.9); transform-origin: center; opacity: 0.7; }
    50% { transform: scale(1.15); transform-origin: center; opacity: 1; }
    100% { transform: scale(0.9); transform-origin: center; opacity: 0.7; }
}
.pulse-hazard {
    animation: hazardPulse 2s infinite ease-in-out;
    transform-box: fill-box;
}

/* Button Loading Spinner */
@keyframes btnSpin {
    to { transform: rotate(360deg); }
}
.btn-loading {
    position: relative;
    color: transparent !important;
    pointer-events: none;
}
.btn-loading::after {
    content: '';
    position: absolute;
    width: 18px;
    height: 18px;
    top: 50%;
    left: 50%;
    margin-top: -9px;
    margin-left: -9px;
    border: 2px solid rgba(255,255,255,0.4);
    border-top-color: #ffffff;
    border-radius: 50%;
    animation: btnSpin 0.8s linear infinite;
}

/* Form Validation Shake */
@keyframes shake {
    0%, 100% { transform: translateX(0); }
    25% { transform: translateX(-4px); }
    75% { transform: translateX(4px); }
}
.shake-anim {
    animation: shake 0.3s ease-in-out;
}

/* Zoom Earth Atmospheric Filter */
.leaflet-tile-pane {
    filter: brightness(0.65) contrast(1.2) saturate(1.1);
}

/* RESPONSIVE */
@media (max-width: 768px) {
    .sidebar {
        width: 0;
        overflow: hidden;
    }
    .main-content {
        margin-left: 0;
    }
}