/**
 * Mimir File Management System - Main Stylesheet
 */

/* ===== CSS Variables ===== */
:root {
    /* Brand colors - can be overridden by inline styles */
    --brand-primary: #1e40af;
    --brand-secondary: #475569;
    --brand-accent: #0ea5e9;
    
    /* System colors - professional palette */
    --primary-color: var(--brand-primary);
    --primary-dark: #1e3a8a;
    --primary-light: #3b82f6;
    --secondary-color: var(--brand-secondary);
    --accent-color: var(--brand-accent);
    --success-color: #059669;
    --danger-color: #dc2626;
    --warning-color: #d97706;
    --info-color: var(--brand-accent);
    
    /* Neutral palette - professional grays */
    --bg-color: #f8fafc;
    --bg-main: #ffffff;
    --bg-secondary: #f1f5f9;
    --surface-color: #ffffff;
    --text-color: #0f172a;
    --text-primary: #1e293b;
    --text-secondary: #475569;
    --text-muted: #64748b;
    /* Legacy / compatibility aliases used across templates */
    --text-main: var(--text-primary);
    --text-on-primary: #ffffff;
    --border-color: #e2e8f0;
    --border-light: #f1f5f9;
    
    /* Layout */
    --sidebar-width: 250px;
    --header-height: 60px;
    
    /* Radius */
    --radius-sm: 4px;
    --radius-md: 8px;
    --radius-lg: 12px;
    
    /* Shadows - subtle and professional */
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 2px 4px 0 rgba(0, 0, 0, 0.08);
    --shadow-lg: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    --shadow-xl: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
    
    /* Primary color with opacity for professional effects */
    --primary: var(--brand-primary);
    /* Period button tuning */
    --period-bg: rgba(255,255,255,0.92);
    --period-border: rgba(0,0,0,0.06);
    --period-text: var(--text-primary);
    --period-hover-bg: rgba(0,0,0,0.04);
}

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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    font-size: 14px;
    line-height: 1.5;
    color: var(--text-color);
    background-color: var(--bg-color);
}

a { color: var(--primary-color); text-decoration: none; transition: color 0.2s; }
a:hover { color: var(--primary-dark); }

/* ===== Layout ===== */
.app-container { display: flex; min-height: 100vh; }
.sidebar { width: var(--sidebar-width); background-color: var(--surface-color); border-right: 1px solid var(--border-color); box-shadow: var(--shadow-sm); position: fixed; height: 100vh; overflow-y: auto; z-index: 100; }
.main-content { flex: 1; margin-left: var(--sidebar-width); min-height: 100vh; display: flex; flex-direction: column; }
.header { height: var(--header-height); background-color: var(--surface-color); border-bottom: 1px solid var(--border-color); display: flex; align-items: center; justify-content: space-between; padding: 0 1.5rem; box-shadow: var(--shadow-sm); }
/* Make header a positioning context for absolute dropdowns */
.header { position: relative; }
.content { flex: 1; padding: 1.5rem; }

/* ===== Sidebar ===== */
.sidebar-header { padding: 1.5rem; border-bottom: 1px solid var(--border-color); }
.logo { font-size: 1.5rem; font-weight: 700; color: var(--primary-color); display: flex; align-items: center; gap: 0.75rem; }
.logo img { max-height: 40px; max-width: 150px; width: auto; height: auto; object-fit: contain; }
/* Visually hidden utility for screen-readers (when logo image is present we hide textual site name) */
.visually-hidden { position: absolute !important; height: 1px; width: 1px; overflow: hidden; clip: rect(1px, 1px, 1px, 1px); white-space: nowrap; border: 0; padding: 0; margin: -1px; }
.sidebar-menu { padding: 1rem 0; }
.menu-section { margin-bottom: 1.5rem; }
.menu-section-title { padding: 0.5rem 1.5rem; font-size: 0.75rem; font-weight: 600; text-transform: uppercase; color: var(--text-muted); letter-spacing: 0.05em; }

.header-brand { display: flex; align-items: center; gap: 0.5rem; }
.header-brand-logo { height: 32px; width: auto; }
.header-brand-text { font-weight: 600; font-size: 1rem; }

.sidebar-brand-visual { display: flex; align-items: center; gap: 0.5rem; padding: 8px 12px; }
.sidebar-brand-logo { height: 40px; width: auto; }
.sidebar-brand-text { font-weight: 700; font-size: 1.05rem; color:var(--text-color); }

/* Basic responsive behavior: when mobile-menu-open, slide sidebar over content */
body.mobile-menu-open .sidebar {
    transform: translateX(0);
}

/* Ensure sidebar header takes minimal width and profile doesn't create extra column */
.sidebar { width: 220px; min-width: 220px; }
.main-content { margin-left: 220px; }
.menu-item { display: flex; align-items: center; padding: 0.75rem 1.5rem; color: var(--text-color); transition: all 0.2s; cursor: pointer; }
.menu-item:hover { background-color: var(--bg-color); color: var(--primary-color); }
.menu-item.active { background-color: var(--primary-color); color: white; font-weight: 500; }
.menu-item i { margin-right: 0.75rem; width: 20px; text-align: center; }

/* ===== Header ===== */
.header-title { font-size: 1.25rem; font-weight: 600; }
.header-actions { display: flex; align-items: center; gap: 1rem; }
.header-brand { display: flex; align-items: center; gap: 0.6rem; margin-left: 0.5rem; }
.header-brand-logo { max-height: 36px; max-width: 140px; object-fit: contain; display: inline-block; }
.header-brand-text { font-weight: 700; color: var(--primary-color); font-size: 1rem; display: inline-block; }
.user-menu { display: flex; align-items: center; gap: 0.75rem; padding: 0.5rem 1rem; border-radius: var(--radius-md); cursor: pointer; transition: background-color 0.2s; }
.user-menu:hover { background-color: var(--bg-color); }
.user-avatar { width: 36px; height: 36px; border-radius: 50%; background: linear-gradient(135deg, var(--brand-primary) 0%, var(--brand-accent) 100%); color: white; display: inline-flex; align-items: center; justify-content: center; font-weight: 600; box-shadow: 0 2px 8px rgba(16,24,40,0.12); }
.user-avatar svg { width: 20px; height: 20px; fill: white; display: block; }

/* User dropdown styling (used by header dropdown) */
.user-dropdown { display: none; }
.user-dropdown.show { display: block; }

/* ===== Cards ===== */
.card { background-color: var(--surface-color); border-radius: var(--radius-md); box-shadow: var(--shadow-sm); border: 1px solid var(--border-color); margin-bottom: 1.5rem; }
.card-header { padding: 1.25rem 1.5rem; border-bottom: 1px solid var(--border-color); display: flex; align-items: center; justify-content: space-between; }
.card-title { font-size: 1.125rem; font-weight: 600; }
.card-body { padding: 1.5rem; }
.card-footer { padding: 1rem 1.5rem; border-top: 1px solid var(--border-color); background-color: var(--bg-color); }

/* Brandized card headers: use brand gradient and white text by default */
.card-header {
    background: linear-gradient(135deg, var(--brand-primary) 0%, var(--brand-secondary) 100%);
    color: var(--text-on-primary, #ffffff);
}

/* Utility helpers to avoid inline styles */
.card-header--padded {
    padding: 1.5rem;
}
.card-header--flex {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.bulk-actions-bar {
    position: fixed;
    bottom: 2rem;
    left: 50%;
    transform: translateX(-50%);
    background: linear-gradient(135deg, var(--brand-primary) 0%, var(--brand-secondary) 100%);
    color: var(--text-on-primary, #ffffff);
    padding: 1rem 2rem;
    border-radius: 2rem;
    box-shadow: 0 8px 32px rgba(0,0,0,0.3);
    display: none;
    z-index: 1000;
    animation: slideUp 0.3s ease-out;
}
.bulk-actions-bar.show {
    display: flex;
    align-items: center;
    gap: 1rem;
    flex-wrap: wrap;
}

/* ===== 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: 500; border: 1px solid transparent; border-radius: var(--radius-md); cursor: pointer; transition: all 0.2s; text-decoration: none; }
.btn:disabled { opacity: 0.5; cursor: not-allowed; }
.btn-primary { background-color: var(--primary-color); color: var(--text-on-primary); border-color: transparent; }

/* Period selector buttons (chart period) - ensure high contrast */
.period-btn {
    padding: 0.5rem 1rem;
    border: 2px solid var(--border-color);
    background: var(--surface-color);
    color: var(--text-main);
    border-radius: 0.5rem;
    font-size: 0.875rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s;
}
.period-btn:hover {
    border-color: var(--primary-color);
    background: var(--primary-color);
    color: var(--text-on-primary);
    transform: translateY(-2px);
    box-shadow: 0 4px 8px rgba(0,0,0,0.08);
}
.period-btn.active {
    background: var(--primary-color);
    border-color: var(--primary-color);
    color: var(--text-on-primary);
    box-shadow: 0 2px 8px rgba(0,0,0,0.08);
}

/* Outline variant for buttons placed on dark/brand headers */
.btn-outline--on-dark {
    background: rgba(255,255,255,0.08);
    color: var(--text-on-primary);
    border-color: rgba(255,255,255,0.12);
    box-shadow: none;
}
.btn-outline--on-dark:hover {
    background: rgba(255,255,255,0.12);
    color: var(--text-on-primary);
    transform: translateY(-1px);
}

/* Ensure period selector buttons inside brand headers are readable */
.card-header .period-btn {
    padding: 0.42rem 0.9rem;
    border: 1px solid var(--period-border);
    background: var(--period-bg);
    color: var(--period-text);
    border-radius: 0.5rem;
    font-size: 0.875rem;
    font-weight: 600;
    cursor: pointer;
    transition: transform 0.12s ease, box-shadow 0.12s ease, background 0.12s ease;
}
.card-header .period-btn:hover {
    background: color-mix(in srgb, var(--period-bg) 88%, black 12%);
    transform: translateY(-1px);
    box-shadow: 0 6px 18px rgba(0,0,0,0.06);
}
.card-header .period-btn.active {
    background: var(--primary-color);
    border-color: var(--primary-color);
    color: var(--text-on-primary);
}

/* Fallback for period buttons outside headers */
.period-btn {
    padding: 0.5rem 1rem;
    border: 2px solid var(--border-color);
    background: var(--surface-color);
    color: var(--text-main);
    border-radius: 0.5rem;
    font-size: 0.875rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s;
}
.period-btn:hover {
    border-color: var(--primary-color);
    background: var(--primary-color);
    color: var(--text-on-primary);
}
.period-btn.active {
    background: var(--primary-color);
    border-color: var(--primary-color);
    color: var(--text-on-primary);
    box-shadow: 0 2px 8px rgba(0,0,0,0.08);
}
.btn-primary:hover:not(:disabled) { background-color: var(--primary-dark); }
.btn-secondary { background-color: var(--secondary-color); color: white; }
.btn-success { background-color: var(--success-color); color: white; }
.btn-danger { background-color: var(--danger-color); color: white; }
.btn-warning { background-color: var(--warning-color); color: white; }
.btn-outline { background-color: transparent; border-color: var(--border-color); color: var(--text-color); }
.btn-outline:hover { background-color: var(--bg-color); }
.btn-sm { padding: 0.375rem 0.875rem; font-size: 0.8125rem; }
.btn-lg { padding: 0.875rem 1.75rem; font-size: 1rem; }

/* ===== Forms ===== */
.form-group { margin-bottom: 1.25rem; }
.form-label { display: block; margin-bottom: 0.5rem; font-weight: 500; color: var(--text-color); }
.form-label.required::after { content: " *"; color: var(--danger-color); }
.form-control { width: 100%; padding: 0.625rem 0.875rem; font-size: 0.875rem; border: 1.5px solid rgba(0, 0, 0, 0.15); border-radius: var(--radius-md); background-color: rgba(255, 255, 255, 0.05); color: var(--text-color); transition: all 0.2s; box-shadow: inset 0 1px 2px rgba(0, 0, 0, 0.05); }
.form-control:hover { border-color: rgba(0, 0, 0, 0.25); background-color: rgba(255, 255, 255, 0.08); }
.form-control:focus { outline: none; border-color: var(--primary-color); background-color: var(--surface-color); box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1), inset 0 1px 2px rgba(0, 0, 0, 0.05); }
.form-control:disabled { background-color: var(--bg-color); opacity: 0.6; cursor: not-allowed; }
textarea.form-control { resize: vertical; min-height: 80px; }
.form-select { appearance: none; background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16'%3e%3cpath fill='none' stroke='%23343a40' stroke-linecap='round' stroke-linejoin='round' stroke-width='2' d='M2 5l6 6 6-6'/%3e%3c/svg%3e"); background-repeat: no-repeat; background-position: right 0.75rem center; background-size: 16px 12px; padding-right: 2.5rem; }
.form-check { display: flex; align-items: center; gap: 0.5rem; margin-bottom: 0.5rem; }
.form-check input[type="checkbox"], .form-check input[type="radio"] { width: 18px; height: 18px; cursor: pointer; }
.form-text { display: block; margin-top: 0.25rem; font-size: 0.8125rem; color: var(--text-muted); }
.form-error { color: var(--danger-color); font-size: 0.8125rem; margin-top: 0.25rem; }

/* ===== Tables ===== */
.table-responsive { overflow-x: auto; }
.table { width: 100%; border-collapse: collapse; }
.table thead th { background-color: var(--bg-color); padding: 0.875rem 1rem; text-align: left; font-weight: 600; font-size: 0.8125rem; text-transform: uppercase; color: var(--text-muted); letter-spacing: 0.05em; border-bottom: 2px solid var(--border-color); }
.table tbody td { padding: 0.875rem 1rem; border-bottom: 1px solid var(--border-color); }
.table tbody tr:hover { background-color: var(--bg-color); }
.table tbody tr.selected { background-color: rgba(37, 99, 235, 0.05); }

/* ===== Alerts ===== */
.alert { padding: 1rem 1.25rem; border-radius: var(--radius-md); border: 1px solid transparent; margin-bottom: 1rem; }
.alert-success { background-color: #d1fae5; border-color: #6ee7b7; color: #065f46; }
.alert-danger { background-color: #fee2e2; border-color: #fca5a5; color: #991b1b; }
.alert-warning { background-color: #fef3c7; border-color: #fcd34d; color: #92400e; }
.alert-info { background-color: #dbeafe; border-color: #93c5fd; color: #1e40af; }

/* ===== Badges ===== */
.badge { display: inline-flex; align-items: center; padding: 0.25rem 0.625rem; font-size: 0.75rem; font-weight: 500; border-radius: 9999px; }
.badge-primary { background-color: #dbeafe; color: #1e40af; }
.badge-success { background-color: #d1fae5; color: #065f46; }
.badge-danger { background-color: #fee2e2; color: #991b1b; }
.badge-warning { background-color: #fef3c7; color: #92400e; }
.badge-secondary { background-color: #f1f5f9; color: #475569; }

/* ===== Modals ===== */
.modal { display: none; position: fixed; top: 0; left: 0; width: 100%; height: 100%; background-color: rgba(0, 0, 0, 0.5); z-index: 1000; align-items: center; justify-content: center; }
.modal.active { display: flex; }
.modal-dialog { background-color: var(--surface-color); border-radius: var(--radius-lg); max-width: 500px; width: 90%; max-height: 90vh; overflow-y: auto; box-shadow: var(--shadow-lg); }
.modal-header { padding: 1.25rem 1.5rem; border-bottom: 1px solid var(--border-color); display: flex; align-items: center; justify-content: space-between; }
.modal-title { font-size: 1.125rem; font-weight: 600; }
.modal-close { background: none; border: none; font-size: 1.5rem; cursor: pointer; color: var(--text-muted); line-height: 1; }
.modal-body { padding: 1.5rem; }
.modal-footer { padding: 1rem 1.5rem; border-top: 1px solid var(--border-color); display: flex; gap: 0.75rem; justify-content: flex-end; }

/* ===== Login Page ===== */
.login-container { min-height: 100vh; display: flex; align-items: center; justify-content: center; background: linear-gradient(135deg, #667eea 0%, #764ba2 100%); }
.login-card { background-color: var(--surface-color); border-radius: var(--radius-lg); padding: 2.5rem; width: 100%; max-width: 400px; box-shadow: var(--shadow-lg); }
.login-header { text-align: center; margin-bottom: 2rem; }
.login-header .logo { justify-content: center; margin-bottom: 1rem; }
.login-header h1 { font-size: 1.5rem; margin-bottom: 0.5rem; }
.login-header p { color: var(--text-muted); }

/* ===== Footer ===== */
.footer { padding: 1.5rem; border-top: 1px solid var(--border-color); background-color: var(--surface-color); text-align: center; }
.footer-links { display: flex; gap: 1.5rem; justify-content: center; flex-wrap: wrap; margin-bottom: 0.75rem; }
.footer-links a { color: var(--text-muted); font-size: 0.875rem; }
.footer-links a:hover { color: var(--primary-color); }
.footer-copyright { font-size: 0.8125rem; color: var(--text-muted); }

/* ===== Utilities ===== */
.text-center { text-align: center; }
.text-right { text-align: right; }
.text-muted { color: var(--text-muted); }
.text-success { color: var(--success-color); }
.text-danger { color: var(--danger-color); }
.text-warning { color: var(--warning-color); }
.mt-1 { margin-top: 0.5rem; }
.mt-2 { margin-top: 1rem; }
.mt-3 { margin-top: 1.5rem; }
.mb-1 { margin-bottom: 0.5rem; }
.mb-2 { margin-bottom: 1rem; }
.mb-3 { margin-bottom: 1.5rem; }
.d-flex { display: flex; }
.align-items-center { align-items: center; }
.justify-content-between { justify-content: space-between; }
.gap-1 { gap: 0.5rem; }
.gap-2 { gap: 1rem; }

/* ===== Responsive ===== */
@media (max-width: 768px) {
    .sidebar { transform: translateX(-100%); transition: transform 0.3s; }
    .sidebar.mobile-open { transform: translateX(0); }
    .main-content { margin-left: 0; }
    .mobile-menu-toggle { display: block; }
    .table { font-size: 0.8125rem; }
    .table thead th, .table tbody td { padding: 0.5rem; }
}

@media (min-width: 769px) {
    .mobile-menu-toggle { display: none; }
}

/* ===== Loading ===== */
.spinner { border: 3px solid var(--border-color); border-top: 3px solid var(--primary-color); border-radius: 50%; width: 24px; height: 24px; animation: spin 1s linear infinite; }
@keyframes spin { 0% { transform: rotate(0deg); } 100% { transform: rotate(360deg); } }

/* Font Awesome Icon Styles */
.fas, .far, .fab {
    display: inline-block;
    font-style: normal;
    font-variant: normal;
    text-rendering: auto;
    -webkit-font-smoothing: antialiased;
}

.menu-item i.fas {
    width: 1.25rem;
    text-align: center;
    margin-right: 0.5rem;
}

.btn i.fas {
    margin-right: 0.25rem;
}

.stat-icon-modern i.fas {
    font-size: inherit;
}

.admin-stat-icon i.fas {
    font-size: inherit;
}

.quick-action-icon i.fas {
    font-size: inherit;
}