/**
 * DonateTracker Styles
 * Following design-guide: clean, minimal, 8px grid
 */

/* ========================================
   CSS Variables (Design Guide Colors)
======================================== */
:root {
    /* Neutrals */
    --white: #FFFFFF;
    --gray-50: #F9FAFB;
    --gray-100: #F3F4F6;
    --gray-200: #E5E7EB;
    --gray-300: #D1D5DB;
    --gray-400: #9CA3AF;
    --gray-500: #6B7280;
    --gray-600: #4B5563;
    --gray-700: #374151;
    --gray-800: #1F2937;
    --gray-900: #111827;

    /* Brand */
    --primary: #2D5A3D;
    --primary-hover: #234830;
    --accent: #D4A853;

    /* Semantic */
    --success: #059669;
    --error: #DC2626;
    --warning: #D97706;

    /* Spacing (8px grid) */
    --space-1: 8px;
    --space-2: 16px;
    --space-3: 24px;
    --space-4: 32px;
    --space-5: 48px;
    --space-6: 64px;

    /* Typography */
    --font-body: 'DM Sans', -apple-system, BlinkMacSystemFont, sans-serif;
    --font-display: 'DM Serif Display', Georgia, serif;

    /* Shadows */
    --shadow-sm: 0 1px 2px rgba(0,0,0,0.05);
    --shadow: 0 1px 3px rgba(0,0,0,0.1), 0 1px 2px rgba(0,0,0,0.06);
    --shadow-md: 0 4px 6px rgba(0,0,0,0.1), 0 2px 4px rgba(0,0,0,0.06);

    /* Border radius */
    --radius-sm: 4px;
    --radius: 8px;
    --radius-lg: 12px;
}

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

html {
    font-size: 16px;
    -webkit-font-smoothing: antialiased;
}

body {
    font-family: var(--font-body);
    font-size: 1rem;
    line-height: 1.5;
    color: var(--gray-800);
    background: var(--gray-50);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

/* ========================================
   Typography
======================================== */
h1, h2, h3, h4 {
    font-family: var(--font-display);
    color: var(--gray-900);
    line-height: 1.2;
}

h1 { font-size: 2rem; margin-bottom: var(--space-3); }
h2 { font-size: 1.5rem; margin-bottom: var(--space-2); }
h3 { font-size: 1.25rem; margin-bottom: var(--space-2); }
h4 { font-size: 1rem; margin-bottom: var(--space-1); }

p { margin-bottom: var(--space-2); }

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

a:hover {
    text-decoration: underline;
}

/* ========================================
   Layout
======================================== */
.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--space-2);
}

.main {
    flex: 1;
    padding: var(--space-4) 0;
}

/* ========================================
   Header
======================================== */
.header {
    background: var(--white);
    border-bottom: 1px solid var(--gray-200);
    padding: var(--space-2) 0;
}

.header-inner {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    font-family: var(--font-display);
    font-size: 1.5rem;
    color: var(--primary);
    text-decoration: none;
}

.nav {
    display: flex;
    align-items: center;
    gap: var(--space-3);
}

.nav-link {
    color: var(--gray-600);
    font-weight: 500;
    text-decoration: none;
    padding: var(--space-1) 0;
}

.nav-link:hover,
.nav-link.active {
    color: var(--primary);
    text-decoration: none;
}

.nav-logout {
    display: inline;
}

/* ========================================
   Footer
======================================== */
.footer {
    background: var(--white);
    border-top: 1px solid var(--gray-200);
    padding: var(--space-3) 0;
    text-align: center;
    color: var(--gray-500);
    font-size: 0.875rem;
}

/* ========================================
   Buttons
======================================== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 12px 24px;
    font-family: var(--font-body);
    font-size: 1rem;
    font-weight: 600;
    line-height: 1;
    border: none;
    border-radius: var(--radius);
    cursor: pointer;
    text-decoration: none;
    transition: all 0.15s ease;
}

.btn-primary {
    background: var(--primary);
    color: var(--white);
    box-shadow: var(--shadow-sm);
}

.btn-primary:hover {
    background: var(--primary-hover);
    text-decoration: none;
}

.btn-secondary {
    background: var(--gray-100);
    color: var(--gray-700);
}

.btn-secondary:hover {
    background: var(--gray-200);
    text-decoration: none;
}

.btn-link {
    background: none;
    color: var(--gray-600);
    padding: 0;
    font-weight: 500;
}

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

.btn-sm {
    padding: 8px 16px;
    font-size: 0.875rem;
}

.btn-lg {
    padding: 16px 32px;
    font-size: 1.125rem;
}

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

/* ========================================
   Forms
======================================== */
.form-group {
    margin-bottom: var(--space-3);
}

.form-label {
    display: block;
    font-weight: 500;
    color: var(--gray-700);
    margin-bottom: var(--space-1);
}

.form-input,
.form-select,
.form-textarea {
    width: 100%;
    padding: 12px 16px;
    font-family: var(--font-body);
    font-size: 1rem;
    color: var(--gray-900);
    background: var(--white);
    border: 1px solid var(--gray-300);
    border-radius: var(--radius);
    transition: border-color 0.15s ease, box-shadow 0.15s ease;
}

.form-input:focus,
.form-select:focus,
.form-textarea:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(45, 90, 61, 0.1);
}

.form-input.error,
.form-select.error {
    border-color: var(--error);
}

.form-error {
    color: var(--error);
    font-size: 0.875rem;
    margin-top: var(--space-1);
}

.form-hint {
    color: var(--gray-500);
    font-size: 0.875rem;
    margin-top: var(--space-1);
}

.form-textarea {
    min-height: 100px;
    resize: vertical;
}

/* Radio & Checkbox */
.form-radio-group {
    display: flex;
    gap: var(--space-3);
    flex-wrap: wrap;
}

.form-radio {
    display: flex;
    align-items: center;
    gap: var(--space-1);
    cursor: pointer;
}

.form-radio input {
    width: 18px;
    height: 18px;
    accent-color: var(--primary);
}

/* ========================================
   Cards
======================================== */
.card {
    background: var(--white);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    padding: var(--space-3);
}

.card-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--space-2);
}

.card-title {
    font-size: 1.25rem;
    margin: 0;
}

/* ========================================
   Alerts
======================================== */
.alert {
    padding: var(--space-2);
    border-radius: var(--radius);
    margin-bottom: var(--space-3);
}

.alert-success {
    background: #D1FAE5;
    color: #065F46;
    border: 1px solid #A7F3D0;
}

.alert-error {
    background: #FEE2E2;
    color: #991B1B;
    border: 1px solid #FECACA;
}

.alert-warning {
    background: #FEF3C7;
    color: #92400E;
    border: 1px solid #FDE68A;
}

/* ========================================
   Tables
======================================== */
.table {
    width: 100%;
    border-collapse: collapse;
}

.table th,
.table td {
    padding: var(--space-2);
    text-align: left;
    border-bottom: 1px solid var(--gray-200);
}

.table th {
    font-weight: 600;
    color: var(--gray-700);
    background: var(--gray-50);
}

.table tbody tr:hover {
    background: var(--gray-50);
}

/* ========================================
   Auth Pages
======================================== */
.auth-container {
    max-width: 400px;
    margin: var(--space-5) auto;
}

.auth-card {
    background: var(--white);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    padding: var(--space-4);
}

.auth-title {
    text-align: center;
    margin-bottom: var(--space-3);
}

.auth-footer {
    text-align: center;
    margin-top: var(--space-3);
    color: var(--gray-600);
}

/* ========================================
   Dashboard
======================================== */
.dashboard-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--space-4);
    flex-wrap: wrap;
    gap: var(--space-2);
}

.summary-card {
    background: var(--primary);
    color: var(--white);
    border-radius: var(--radius-lg);
    padding: var(--space-4);
    margin-bottom: var(--space-4);
}

.summary-card h2 {
    color: var(--white);
    opacity: 0.9;
    font-size: 1rem;
    font-family: var(--font-body);
    margin-bottom: var(--space-1);
}

.summary-value {
    font-family: var(--font-display);
    font-size: 2.5rem;
}

.summary-count {
    opacity: 0.8;
    font-size: 0.875rem;
    margin-top: var(--space-1);
}

/* Donation List */
.donation-list {
    display: flex;
    flex-direction: column;
    gap: var(--space-2);
}

.donation-item {
    background: var(--white);
    border-radius: var(--radius);
    padding: var(--space-2) var(--space-3);
    display: flex;
    justify-content: space-between;
    align-items: center;
    box-shadow: var(--shadow-sm);
}

.donation-info {
    flex: 1;
}

.donation-name {
    font-weight: 600;
    color: var(--gray-900);
}

.donation-meta {
    font-size: 0.875rem;
    color: var(--gray-500);
    margin-top: 2px;
}

.donation-value {
    font-weight: 600;
    font-size: 1.125rem;
    color: var(--primary);
}

.donation-actions {
    display: flex;
    gap: var(--space-1);
    margin-left: var(--space-2);
}

/* Condition Badges */
.badge {
    display: inline-block;
    padding: 2px 8px;
    font-size: 0.75rem;
    font-weight: 600;
    border-radius: 9999px;
}

.badge-good {
    background: var(--gray-100);
    color: var(--gray-700);
}

.badge-very-good {
    background: #DBEAFE;
    color: #1E40AF;
}

.badge-excellent {
    background: #D1FAE5;
    color: #065F46;
}

/* ========================================
   Empty State
======================================== */
.empty-state {
    text-align: center;
    padding: var(--space-5);
    color: var(--gray-500);
}

.empty-state h3 {
    color: var(--gray-700);
    margin-bottom: var(--space-1);
}

.empty-state p {
    margin-bottom: var(--space-3);
}

/* ========================================
   Error Page
======================================== */
.error-page {
    text-align: center;
    padding: var(--space-6) 0;
}

.error-page h1 {
    font-size: 5rem;
    color: var(--gray-300);
    margin-bottom: var(--space-2);
}

/* ========================================
   Utilities
======================================== */
.text-center { text-align: center; }
.text-right { text-align: right; }
.text-muted { color: var(--gray-500); }
.text-small { font-size: 0.875rem; }

.mt-1 { margin-top: var(--space-1); }
.mt-2 { margin-top: var(--space-2); }
.mt-3 { margin-top: var(--space-3); }
.mt-4 { margin-top: var(--space-4); }

.mb-1 { margin-bottom: var(--space-1); }
.mb-2 { margin-bottom: var(--space-2); }
.mb-3 { margin-bottom: var(--space-3); }
.mb-4 { margin-bottom: var(--space-4); }

.flex { display: flex; }
.flex-between { justify-content: space-between; }
.flex-center { align-items: center; }
.gap-2 { gap: var(--space-2); }
.gap-3 { gap: var(--space-3); }

/* ========================================
   Responsive
======================================== */
@media (max-width: 600px) {
    h1 { font-size: 1.5rem; }

    .header-inner {
        flex-direction: column;
        gap: var(--space-2);
    }

    .nav {
        width: 100%;
        justify-content: center;
    }

    .dashboard-header {
        flex-direction: column;
        align-items: stretch;
    }

    .donation-item {
        flex-direction: column;
        align-items: flex-start;
        gap: var(--space-2);
    }

    .donation-actions {
        margin-left: 0;
        width: 100%;
        justify-content: flex-end;
    }

    .form-radio-group {
        flex-direction: column;
    }
}