/* ==========================================================================
   APP.CSS — Global Styles for Daclic Platform
   ========================================================================== */

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

html {
    scroll-behavior: smooth;
    -webkit-text-size-adjust: 100%;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    line-height: 1.6;
    color: var(--text-primary, #1e293b);
    background-color: var(--body-bg, #f8fafc);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    transition: background-color 0.3s ease, color 0.3s ease;
}

img { max-width: 100%; height: auto; display: block; }
a { color: var(--primary, #3b82f6); text-decoration: none; transition: color 0.2s ease; }
a:hover { color: var(--primary-dark, #1e40af); }
ul, ol { list-style: none; }
button { cursor: pointer; font-family: inherit; }
input, select, textarea { font-family: inherit; font-size: inherit; }

/* ---------- CSS Custom Properties (Blue default) ---------- */
:root {
    --primary: #3b82f6;
    --primary-light: #eff6ff;
    --primary-dark: #1e40af;
    --card-bg: #f0f7ff;
    --card-border: #3b82f6;
    --sidebar-bg: #f8fafc;
    --nav-bg: #ffffff;
    --body-bg: #f8fafc;
    --accent: #2563eb;
    --text-primary: #1e293b;
    --text-secondary: #64748b;
    --btn-primary-bg: #3b82f6;
    --btn-primary-hover: #2563eb;
    --input-border: #cbd5e1;
    --input-focus: #3b82f6;
    --success: #10b981;
    --success-bg: #ecfdf5;
    --error: #ef4444;
    --error-bg: #fef2f2;
    --info: #3b82f6;
    --info-bg: #eff6ff;
    --warning: #f59e0b;
    --warning-bg: #fffbeb;
    --shadow-sm: 0 1px 2px rgba(0,0,0,0.05);
    --shadow-md: 0 4px 6px -1px rgba(0,0,0,0.07), 0 2px 4px -2px rgba(0,0,0,0.05);
    --shadow-lg: 0 10px 15px -3px rgba(0,0,0,0.08), 0 4px 6px -4px rgba(0,0,0,0.04);
    --radius-sm: 0.375rem;
    --radius-md: 0.5rem;
    --radius-lg: 0.75rem;
    --radius-xl: 1rem;
    --sidebar-width: 250px;
    --navbar-height: 60px;
    --transition-fast: 0.15s ease;
    --transition-base: 0.3s ease;
}

/* ---------- Typography ---------- */
h1, h2, h3, h4, h5, h6 {
    color: var(--text-primary);
    font-weight: 700;
    line-height: 1.3;
    transition: color var(--transition-base);
}
h1 { font-size: 2rem; }
h2 { font-size: 1.5rem; }
h3 { font-size: 1.25rem; }
h4 { font-size: 1.125rem; }
p { color: var(--text-secondary); transition: color var(--transition-base); }

/* ---------- Container ---------- */
.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 1rem;
}

/* ---------- Cards ---------- */
.card {
    background: var(--card-bg);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-sm);
    border-left: 4px solid var(--card-border);
    padding: 1.5rem;
    transition: background-color var(--transition-base), box-shadow var(--transition-base), border-color var(--transition-base);
}
.card:hover {
    box-shadow: var(--shadow-md);
}
.card-header {
    margin-bottom: 1rem;
    padding-bottom: 0.75rem;
    border-bottom: 1px solid rgba(0,0,0,0.06);
}
.card-title {
    font-size: 1.125rem;
    font-weight: 600;
    color: var(--text-primary);
}
.card-body { flex: 1; }

/* ---------- Buttons ---------- */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 0.625rem 1.25rem;
    font-size: 0.875rem;
    font-weight: 600;
    border-radius: var(--radius-md);
    border: 2px solid transparent;
    transition: all var(--transition-fast);
    line-height: 1.4;
    white-space: nowrap;
    user-select: none;
}
.btn:focus-visible {
    outline: 2px solid var(--primary);
    outline-offset: 2px;
}
.btn-primary {
    background-color: var(--btn-primary-bg);
    color: #ffffff;
    border-color: var(--btn-primary-bg);
}
.btn-primary:hover {
    background-color: var(--btn-primary-hover);
    border-color: var(--btn-primary-hover);
    color: #ffffff;
}
.btn-secondary {
    background-color: transparent;
    color: var(--primary);
    border-color: var(--primary);
}
.btn-secondary:hover {
    background-color: var(--primary);
    color: #ffffff;
}
.btn-sm { padding: 0.375rem 0.75rem; font-size: 0.8125rem; }
.btn-lg { padding: 0.75rem 1.75rem; font-size: 1rem; }
.btn:disabled, .btn.is-loading {
    opacity: 0.6;
    pointer-events: none;
}

/* ---------- Form Inputs ---------- */
.form-group {
    margin-bottom: 1.25rem;
}
.form-label {
    display: block;
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 0.375rem;
    transition: color var(--transition-base);
}
.form-hint {
    font-size: 0.75rem;
    color: var(--text-secondary);
    margin-top: 0.25rem;
}
.form-input,
.form-select,
.form-textarea {
    width: 100%;
    padding: 0.625rem 0.875rem;
    font-size: 0.9375rem;
    color: var(--text-primary);
    background-color: var(--nav-bg);
    border: 1.5px solid var(--input-border);
    border-radius: var(--radius-md);
    transition: border-color var(--transition-fast), box-shadow var(--transition-fast), background-color var(--transition-base);
    outline: none;
}
.form-input:focus,
.form-select:focus,
.form-textarea:focus {
    border-color: var(--input-focus);
    box-shadow: 0 0 0 3px rgba(59,130,246,0.15);
}
.form-textarea { resize: vertical; min-height: 100px; }

/* ---------- Flash Messages ---------- */
.flash {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.875rem 1.25rem;
    border-radius: var(--radius-md);
    font-size: 0.875rem;
    font-weight: 500;
    margin-bottom: 1rem;
    transition: opacity 0.4s ease, transform 0.4s ease;
}
.flash-success {
    background-color: var(--success-bg);
    color: #065f46;
    border-left: 4px solid var(--success);
}
.flash-error {
    background-color: var(--error-bg);
    color: #991b1b;
    border-left: 4px solid var(--error);
}
.flash-info {
    background-color: var(--info-bg);
    color: #1e40af;
    border-left: 4px solid var(--info);
}
.flash-warning {
    background-color: var(--warning-bg);
    color: #92400e;
    border-left: 4px solid var(--warning);
}
.flash.fade-out {
    opacity: 0;
    transform: translateY(-10px);
}

/* ---------- Navbar (Base) ---------- */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    height: var(--navbar-height);
    background-color: var(--nav-bg);
    border-bottom: 1px solid rgba(0,0,0,0.06);
    display: flex;
    align-items: center;
    padding: 0 1.5rem;
    z-index: 1000;
    transition: background-color var(--transition-base), box-shadow var(--transition-base);
}
.navbar-brand {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--primary);
    display: flex;
    align-items: center;
    gap: 0.5rem;
}
.navbar-nav {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-left: auto;
}
.navbar-link {
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--text-secondary);
    padding: 0.5rem 0.75rem;
    border-radius: var(--radius-sm);
    transition: color var(--transition-fast), background-color var(--transition-fast);
}
.navbar-link:hover,
.navbar-link.active {
    color: var(--primary);
    background-color: var(--primary-light);
}

/* ---------- Sidebar (Base) ---------- */
.sidebar {
    position: fixed;
    top: var(--navbar-height);
    left: 0;
    bottom: 0;
    width: var(--sidebar-width);
    background-color: var(--sidebar-bg);
    border-right: 1px solid rgba(0,0,0,0.06);
    overflow-y: auto;
    z-index: 900;
    transition: transform var(--transition-base), background-color var(--transition-base);
}

/* ---------- Main Content ---------- */
.main-content {
    margin-left: var(--sidebar-width);
    margin-top: var(--navbar-height);
    padding: 1.5rem;
    min-height: calc(100vh - var(--navbar-height));
    transition: margin-left var(--transition-base);
}

/* ---------- Utility Classes ---------- */
.text-primary { color: var(--primary) !important; }
.text-secondary { color: var(--text-secondary) !important; }
.text-success { color: var(--success) !important; }
.text-error { color: var(--error) !important; }
.text-center { text-align: center; }
.text-right { text-align: right; }
.text-sm { font-size: 0.875rem; }
.text-xs { font-size: 0.75rem; }
.text-lg { font-size: 1.125rem; }
.font-bold { font-weight: 700; }
.font-semibold { font-weight: 600; }
.font-medium { font-weight: 500; }
.mt-1 { margin-top: 0.25rem; }
.mt-2 { margin-top: 0.5rem; }
.mt-3 { margin-top: 0.75rem; }
.mt-4 { margin-top: 1rem; }
.mt-6 { margin-top: 1.5rem; }
.mb-1 { margin-bottom: 0.25rem; }
.mb-2 { margin-bottom: 0.5rem; }
.mb-3 { margin-bottom: 0.75rem; }
.mb-4 { margin-bottom: 1rem; }
.mb-6 { margin-bottom: 1.5rem; }
.p-4 { padding: 1rem; }
.p-6 { padding: 1.5rem; }
.px-4 { padding-left: 1rem; padding-right: 1rem; }
.py-2 { padding-top: 0.5rem; padding-bottom: 0.5rem; }
.flex { display: flex; }
.flex-col { flex-direction: column; }
.items-center { align-items: center; }
.justify-between { justify-content: space-between; }
.justify-center { justify-content: center; }
.gap-2 { gap: 0.5rem; }
.gap-3 { gap: 0.75rem; }
.gap-4 { gap: 1rem; }
.grid { display: grid; }
.grid-2 { grid-template-columns: repeat(2, 1fr); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-4 { grid-template-columns: repeat(4, 1fr); }
.w-full { width: 100%; }
.hidden { display: none !important; }
.relative { position: relative; }
.rounded-md { border-radius: var(--radius-md); }
.rounded-lg { border-radius: var(--radius-lg); }
.rounded-xl { border-radius: var(--radius-xl); }
.overflow-hidden { overflow: hidden; }
.truncate { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }

/* ---------- Transition Utilities ---------- */
.transition-colors { transition: color var(--transition-base), background-color var(--transition-base), border-color var(--transition-base); }
.transition-all { transition: all var(--transition-base); }
.transition-transform { transition: transform var(--transition-base); }

/* ---------- Loading Spinner ---------- */
.spinner {
    display: inline-block;
    width: 1.25rem;
    height: 1.25rem;
    border: 2.5px solid rgba(255,255,255,0.3);
    border-top-color: #ffffff;
    border-radius: 50%;
    animation: spin 0.6s linear infinite;
}
.spinner-dark {
    border-color: rgba(0,0,0,0.1);
    border-top-color: var(--primary);
}
@keyframes spin {
    to { transform: rotate(360deg); }
}

/* ---------- Overlay ---------- */
.overlay {
    position: fixed;
    inset: 0;
    background-color: rgba(0,0,0,0.4);
    z-index: 800;
    opacity: 0;
    visibility: hidden;
    transition: opacity var(--transition-base), visibility var(--transition-base);
}
.overlay.active {
    opacity: 1;
    visibility: visible;
}

/* ---------- Dropdown ---------- */
.dropdown {
    position: relative;
}
.dropdown-menu {
    position: absolute;
    top: 100%;
    right: 0;
    min-width: 180px;
    background: var(--nav-bg);
    border: 1px solid rgba(0,0,0,0.08);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-lg);
    padding: 0.375rem;
    opacity: 0;
    visibility: hidden;
    transform: translateY(8px);
    transition: all var(--transition-fast);
    z-index: 1100;
}
.dropdown-menu.active {
    opacity: 1;
    visibility: visible;
    transform: translateY(4px);
}
.dropdown-item {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 0.75rem;
    font-size: 0.875rem;
    color: var(--text-primary);
    border-radius: var(--radius-sm);
    transition: background-color var(--transition-fast);
}
.dropdown-item:hover {
    background-color: var(--primary-light);
    color: var(--primary);
}
.dropdown-divider {
    height: 1px;
    background-color: rgba(0,0,0,0.06);
    margin: 0.25rem 0;
}

/* ---------- Badge ---------- */
.badge {
    display: inline-flex;
    align-items: center;
    padding: 0.2rem 0.6rem;
    font-size: 0.7rem;
    font-weight: 700;
    border-radius: 9999px;
    text-transform: uppercase;
    letter-spacing: 0.03em;
}
.badge-primary { background-color: var(--primary-light); color: var(--primary); }
.badge-success { background-color: var(--success-bg); color: #065f46; }
.badge-error { background-color: var(--error-bg); color: #991b1b; }

/* ---------- Custom Scrollbar ---------- */
::-webkit-scrollbar {
    width: 6px;
    height: 6px;
}
::-webkit-scrollbar-track {
    background: transparent;
}
::-webkit-scrollbar-thumb {
    background: var(--input-border);
    border-radius: 3px;
}
::-webkit-scrollbar-thumb:hover {
    background: var(--text-secondary);
}

/* ---------- Responsive Breakpoints ---------- */
@media (max-width: 1024px) {
    .grid-4 { grid-template-columns: repeat(2, 1fr); }
    .grid-3 { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 768px) {
    .sidebar {
        transform: translateX(-100%);
    }
    .sidebar.open {
        transform: translateX(0);
    }
    .main-content {
        margin-left: 0;
    }
    .grid-2, .grid-3, .grid-4 {
        grid-template-columns: 1fr;
    }
    .container { padding: 0 0.75rem; }
    h1 { font-size: 1.5rem; }
    h2 { font-size: 1.25rem; }
    .hidden-mobile { display: none !important; }
}
@media (max-width: 480px) {
    .btn { padding: 0.5rem 1rem; font-size: 0.8125rem; }
    .card { padding: 1rem; }
    .navbar { padding: 0 1rem; }
}