/* =========================================
   1. CSS Variables & Base Styles
   ========================================= */
:root {
    --primary-color: #4f46e5;
    --primary-hover: #4338ca;
    --primary-light: #e0e7ff;
    --secondary-color: #3b82f6;
    
    --success-color: #10b981;
    --success-border: #a7f3d0;
    --success-bg: #ecfdf5;
    
    --warning-color: #f59e0b;
    --warning-border: #fde68a;
    --warning-bg: #fffbeb;
    
    --danger-color: #ef4444;
    --danger-border: #fca5a5;
    --danger-bg: #fef2f2;
    
    --info-color: #3b82f6;
    --info-border: #bfdbfe;
    --info-bg: #eff6ff;

    --bg-main: #f4f7fb;
    --bg-card: #ffffff;
    
    --text-main: #0f172a;
    --text-muted: #64748b;
    --text-light: #94a3b8;
    
    --border-color: #e2e8f0;
    
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    --shadow-card: 0 10px 30px rgba(0, 0, 0, 0.03);
    
    --radius-md: 12px;
    --radius-lg: 16px;
    --radius-xl: 24px;
    
    --sidebar-width: 280px;
    --sidebar-bg: rgba(15, 23, 42, 0.98);
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Prompt', sans-serif;
}

html { scroll-behavior: smooth; }

/* Custom Scrollbar */
::-webkit-scrollbar { width: 6px; height: 6px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: #cbd5e1; border-radius: 4px; }
::-webkit-scrollbar-thumb:hover { background: #94a3b8; }

body {
    transition: opacity 0.5s ease-in-out;
    opacity: 1;
    background-color: var(--bg-main);
    color: var(--text-main);
    -webkit-font-smoothing: antialiased;
}
body.fade-out { opacity: 0; }

@keyframes fadeInPage {
    from { opacity: 0; }
    to { opacity: 1; }
}

/* =========================================
   2. Login Page
   ========================================= */
.login-page {
    display: flex; justify-content: center; align-items: center; min-height: 100vh;
    background: linear-gradient(-45deg, #0f172a, #1e3a8a, #4c1d95, #0f172a);
    background-size: 400% 400%; animation: gradientBG 40s ease infinite;
    padding: 20px; position: relative; overflow: hidden;
}
.login-page::before {
    content: ""; position: absolute; inset: 0; z-index: 0;
    background-image: radial-gradient(rgba(255,255,255,0.1) 1px, transparent 1px);
    background-size: 40px 40px; opacity: 0.5;
}
@keyframes gradientBG {
    0% { background-position: 0% 50%; }
    50% { background-position: 100% 50%; }
    100% { background-position: 0% 50%; }
}
.login-container {
    background: rgba(255, 255, 255, 0.05); backdrop-filter: blur(24px); -webkit-backdrop-filter: blur(24px);
    border: 1px solid rgba(255, 255, 255, 0.1); padding: 50px 40px; border-radius: 28px;
    width: 100%; max-width: 440px; box-shadow: 0 30px 60px rgba(0, 0, 0, 0.4);
    text-align: center; color: #ffffff; z-index: 1;
}
.logo-box img {
    width: 100px; height: 100px; object-fit: cover; border-radius: 50%;
    border: 4px solid rgba(255, 255, 255, 0.2); margin-bottom: 24px;
    box-shadow: 0 10px 30px rgba(0,0,0,0.3); transition: transform 0.4s cubic-bezier(0.34, 1.56, 0.64, 1);
}
.logo-box img:hover { transform: scale(1.1) rotate(5deg); }
.login-container h2 { font-size: 28px; font-weight: 600; margin-bottom: 8px; }
.login-container p { font-size: 14px; font-weight: 300; margin-bottom: 35px; color: rgba(255,255,255,0.7); }
.input-group { margin-bottom: 24px; text-align: left; }
.input-group label { display: block; font-size: 14px; margin-bottom: 8px; color: rgba(255, 255, 255, 0.9); }
.input-group input { 
    width: 100%; padding: 15px 20px; background: rgba(255, 255, 255, 0.08); 
    border: 1px solid rgba(255, 255, 255, 0.15); border-radius: var(--radius-md); 
    color: #ffffff; font-size: 16px; outline: none; transition: all 0.3s ease; 
}
.input-group input::placeholder { color: rgba(255, 255, 255, 0.4); }
.input-group input:focus { background: rgba(255, 255, 255, 0.15); border-color: rgba(255,255,255,0.5); box-shadow: 0 0 20px rgba(255, 255, 255, 0.1); }
.login-btn { 
    width: 100%; padding: 16px; background: linear-gradient(135deg, #ffffff, #f1f5f9); 
    color: #0f172a; border: none; border-radius: var(--radius-md); font-size: 16px; font-weight: 600; 
    cursor: pointer; transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1); box-shadow: 0 10px 25px rgba(0,0,0,0.2); 
}
.login-btn:hover:not(:disabled) { transform: translateY(-3px); box-shadow: 0 15px 35px rgba(0,0,0,0.3); }
.login-btn:active:not(:disabled) { transform: translateY(0); }
.login-btn:disabled { opacity: 0.7; cursor: not-allowed; }
.extra-links { display: flex; justify-content: space-between; margin-top: 30px; font-size: 14px; }
.extra-links a { color: rgba(255, 255, 255, 0.6); text-decoration: none; transition: 0.3s; }
.extra-links a:hover { color: #ffffff; }

/* Progress Bar */
.progress-wrapper { display: none; margin-top: 20px; text-align: center; }
.progress-container { width: 100%; background: rgba(255, 255, 255, 0.1); height: 6px; border-radius: 10px; overflow: hidden; }
.progress-fill { width: 0%; height: 100%; background: linear-gradient(90deg, #60a5fa, #818cf8); transition: width 0.4s ease; }
.progress-text { font-size: 13px; color: rgba(255, 255, 255, 0.8); margin-top: 10px; display: block; }

/* =========================================
   3. Dashboard Base & Layout
   ========================================= */
.dashboard-page {
    display: flex; min-height: 100vh;
    opacity: 0; animation: fadeInPage 0.6s ease-out forwards;
}

/* Sidebar (PC) */
.sidebar { 
    width: var(--sidebar-width); background: var(--sidebar-bg); backdrop-filter: blur(20px); 
    color: white; transition: all 0.4s cubic-bezier(0.16, 1, 0.3, 1); 
    position: fixed; top: 0; left: 0; bottom: 0; z-index: 100; padding: 25px 0; 
    display: flex; flex-direction: column; border-right: 1px solid rgba(255,255,255,0.08); 
    overflow-y: auto; 
}
.sidebar.hidden { transform: translateX(-100%); }
.sidebar-header { padding: 0 25px 25px 25px; border-bottom: 1px solid rgba(255,255,255,0.08); margin-bottom: 25px; display: flex; flex-direction: column; align-items: flex-start;}
.sidebar-header h3 { font-size: 26px; color: #60a5fa; font-weight: 700; letter-spacing: 1px; margin-bottom: 4px; }
.close-sidebar-btn { 
    position: absolute; top: 20px; right: 20px; background: rgba(255,255,255,0.05); border: none; color: #cbd5e1; 
    width: 36px; height: 36px; border-radius: 10px; display: none; align-items: center; justify-content: center; cursor: pointer; transition: 0.2s; 
}
.close-sidebar-btn:hover { background: rgba(239, 68, 68, 0.2); color: #ef4444; }
.sidebar-category { font-size: 12px; font-weight: 700; color: #64748b; padding: 15px 25px 10px 25px; text-transform: uppercase; letter-spacing: 0.5px; }
.menu-item { 
    padding: 14px 20px; margin: 0 20px 8px 20px; border-radius: var(--radius-md); 
    display: flex; align-items: center; gap: 14px; color: #94a3b8; text-decoration: none; 
    transition: all 0.3s ease; font-weight: 500; font-size: 15px; position: relative; overflow: hidden;
}
.menu-item:hover { background-color: rgba(255, 255, 255, 0.08); color: #ffffff; }
.menu-item.active { background: linear-gradient(135deg, var(--primary-color), #6366f1); color: white; box-shadow: 0 8px 20px rgba(79, 70, 229, 0.3); }
.menu-item .material-symbols-rounded { font-size: 22px; transition: transform 0.3s ease; }
.menu-item:hover .material-symbols-rounded { transform: scale(1.1); }
#logoutBtn { margin-top: auto; color: #fca5a5; margin-bottom: 20px; }
#logoutBtn:hover { background: rgba(239, 68, 68, 0.15); color: #ef4444; }

/* Main Content */
.main-content { 
    flex: 1; margin-left: var(--sidebar-width); transition: all 0.4s cubic-bezier(0.16, 1, 0.3, 1); 
    padding: 30px 40px; width: calc(100% - var(--sidebar-width)); 
}
.main-content.expanded { margin-left: 0; width: 100%; }

/* Header */
header { 
    display: flex; justify-content: space-between; align-items: center; 
    background: rgba(255, 255, 255, 0.7); backdrop-filter: blur(20px); -webkit-backdrop-filter: blur(20px); 
    padding: 18px 28px; border-radius: var(--radius-xl); box-shadow: var(--shadow-sm), inset 0 0 0 1px rgba(255,255,255,0.5); 
    margin-bottom: 40px; position: sticky; top: 20px; z-index: 90; transition: all 0.3s ease; 
}
header.collapsed { padding: 12px 24px; margin-bottom: 25px; }
header.collapsed .header-right { display: none; }
.header-left { display: flex; align-items: center; gap: 20px; }
.toggle-btn { 
    background: var(--bg-card); border: 1px solid var(--border-color); display: flex; align-items: center; justify-content: center; 
    width: 44px; height: 44px; border-radius: var(--radius-md); cursor: pointer; color: var(--text-muted); transition: 0.2s; box-shadow: var(--shadow-sm);
}
.toggle-btn:hover { background: var(--primary-light); color: var(--primary-color); border-color: var(--primary-light); }
.header-left h2 { font-size: 26px; font-weight: 700; color: var(--text-main); margin-bottom: 4px; letter-spacing: -0.5px; white-space: normal; line-height: 1.2; word-break: break-word; }
.greeting { font-size: 15px; color: var(--text-muted); font-weight: 500; white-space: normal; line-height: 1.4; word-break: break-word; }
.header-right { text-align: right; }
.date-display { font-size: 14px; color: var(--text-muted); font-weight: 500; }
.clock-display { font-size: 18px; font-weight: 700; color: var(--primary-color); margin-top: 2px; font-variant-numeric: tabular-nums; }
.academic-year { font-size: 13px; color: var(--text-muted); margin-top: 4px; background: var(--bg-main); display: inline-block; padding: 4px 10px; border-radius: 20px; }

/* Toast */
.toast-container { position: fixed; top: 20px; right: 20px; z-index: 9999; display: flex; flex-direction: column; gap: 12px; }
.toast { 
    background: var(--text-main); color: white; padding: 16px 24px; border-radius: var(--radius-md); 
    box-shadow: var(--shadow-lg); font-size: 15px; display: flex; align-items: center; gap: 12px; 
    animation: slideInRight 0.4s cubic-bezier(0.16, 1, 0.3, 1) forwards; opacity: 0; transform: translateX(100%); font-weight: 500;
}
.toast.error { background: var(--danger-color); }
.toast.success { background: var(--success-color); }
.toast.fade-out { animation: fadeOutRight 0.4s cubic-bezier(0.16, 1, 0.3, 1) forwards; }
@keyframes slideInRight { to { opacity: 1; transform: translateX(0); } }
@keyframes fadeOutRight { to { opacity: 0; transform: translateX(100%); } }

/* =========================================
   4. Dashboard Elements
   ========================================= */
/* Cards */
.dashboard-cards { display: grid; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); gap: 24px; margin-bottom: 40px; }
.card { 
    background: var(--bg-card); padding: 28px; border-radius: var(--radius-xl); 
    box-shadow: var(--shadow-card); position: relative; display: flex; flex-direction: column; gap: 20px; 
    border: 1px solid rgba(226, 232, 240, 0.6); cursor: pointer; transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1); 
    overflow: hidden;
}
.card:hover { transform: translateY(-6px); box-shadow: 0 20px 40px rgba(0,0,0,0.08); }
.card.active-filter { border: 2px solid var(--primary-color); box-shadow: 0 15px 35px rgba(79, 70, 229, 0.15); }
.card-header { display: flex; justify-content: space-between; align-items: flex-start; }
.card h4 { font-size: 16px; color: var(--text-muted); font-weight: 600; margin: 0; }
.card-icon { width: 56px; height: 56px; border-radius: var(--radius-lg); display: flex; align-items: center; justify-content: center; font-size: 28px; transition: transform 0.3s; }
.card:hover .card-icon { transform: scale(1.1); }
.card.total .card-icon { background: var(--info-bg); color: var(--info-color); }
.card.pending .card-icon { background: var(--warning-bg); color: var(--warning-color); }
.card.inprogress .card-icon { background: #fff7ed; color: #f97316; }
.card.done .card-icon { background: var(--success-bg); color: var(--success-color); }
.card .number { font-size: 40px; font-weight: 700; color: var(--text-main); line-height: 1; letter-spacing: -1px; }

/* Status Badges */
.status-badge { padding: 6px 14px; border-radius: 20px; font-size: 13px; font-weight: 600; display: inline-flex; align-items: center; justify-content: center; text-align: center;}
.status-pending { background: var(--warning-bg); color: #b45309; border: 1px solid var(--warning-border); }
.status-inprogress { background: #fff7ed; color: #c2410c; border: 1px solid #fed7aa; }
.status-done { background: var(--success-bg); color: #15803d; border: 1px solid var(--success-border); }

/* Tables (PC) */
.content-card { background: var(--bg-card); padding: 30px; border-radius: var(--radius-xl); box-shadow: var(--shadow-card); border: 1px solid var(--border-color); }
.cases-table { width: 100%; border-collapse: separate; border-spacing: 0; min-width: 900px; }
.cases-table thead th { background: #f8fafc; border-bottom: 2px solid var(--border-color); text-align: left; padding: 18px 20px; font-size: 14px; font-weight: 700; color: var(--text-muted); text-transform: uppercase; letter-spacing: 0.5px; }
.cases-table thead th:first-child { border-top-left-radius: var(--radius-md); }
.cases-table thead th:last-child { border-top-right-radius: var(--radius-md); }
.cases-table td { padding: 18px 20px; border-bottom: 1px solid #f1f5f9; font-size: 15px; color: var(--text-main); vertical-align: middle; line-height: 1.5; word-break: break-word; }
.cases-table tbody tr { transition: all 0.2s ease; }
.cases-table tbody tr:hover { background-color: #f8fafc; transform: scale(1.001); box-shadow: 0 4px 10px rgba(0,0,0,0.02); }
.cases-table tbody tr.row-inprogress { background-color: #fffaf5; }
.cases-table tbody tr.row-done { background-color: #f6fdf9; }
.text-center { text-align: center !important; }
.w-60 { width: 60px; }
.btn-icon { background: var(--bg-main); border: 1px solid var(--border-color); color: var(--text-muted); width: 42px; height: 42px; border-radius: var(--radius-md); display: inline-flex; align-items: center; justify-content: center; cursor: pointer; transition: all 0.2s ease; }
.btn-icon:hover { background: var(--primary-color); color: white; border-color: var(--primary-color); transform: translateY(-2px); box-shadow: var(--shadow-sm); }

/* Table Animations */
@keyframes slideUpFade { from { opacity: 0; transform: translateY(15px); } to { opacity: 1; transform: translateY(0); } }
.cases-table tbody tr { animation: slideUpFade 0.4s cubic-bezier(0.16, 1, 0.3, 1) forwards; opacity: 0; }
.cases-table tbody tr:nth-child(1) { animation-delay: 0.05s; }
.cases-table tbody tr:nth-child(2) { animation-delay: 0.10s; }
.cases-table tbody tr:nth-child(3) { animation-delay: 0.15s; }
.cases-table tbody tr:nth-child(n+4) { animation-delay: 0.20s; }

/* Filter Buttons */
.filter-container { display: flex; gap: 12px; margin-bottom: 24px; flex-wrap: wrap; }
.btn-filter-all, .btn-filter-pending, .btn-filter-inprogress, .btn-filter-done {
    padding: 8px 18px; border-radius: 20px; font-size: 14px; font-weight: 600; cursor: pointer; transition: 0.2s; background: white;
}
.btn-filter-all { border: 1.5px solid var(--secondary-color); color: var(--secondary-color); }
.btn-filter-all.active, .btn-filter-all:hover { background: var(--secondary-color); color: white; }
.btn-filter-pending { border: 1.5px solid var(--warning-color); color: var(--warning-color); }
.btn-filter-pending.active, .btn-filter-pending:hover { background: var(--warning-color); color: white; }
.btn-filter-inprogress { border: 1.5px solid #f97316; color: #ea580c; }
.btn-filter-inprogress.active, .btn-filter-inprogress:hover { background: #f97316; color: white; }
.btn-filter-done { border: 1.5px solid var(--success-color); color: var(--success-color); }
.btn-filter-done.active, .btn-filter-done:hover { background: var(--success-color); color: white; }

/* =========================================
   5. Forms & Modals
   ========================================= */
.section-header { display: flex; justify-content: space-between; align-items: center; margin-bottom: 30px; flex-wrap: wrap; gap: 15px; }
.section-title { font-size: 24px; font-weight: 700; color: var(--text-main); display: flex; align-items: center; gap: 12px; letter-spacing: -0.5px; }
.section-title .material-symbols-rounded { font-size: 32px; }

.form-container { background: var(--bg-card); padding: 40px; border-radius: var(--radius-xl); box-shadow: var(--shadow-card); border: 1px solid var(--border-color); }
.form-section-title { font-size: 18px; font-weight: 700; color: var(--text-main); margin: 40px 0 25px 0; padding-bottom: 15px; border-bottom: 2px solid var(--bg-main); display: flex; align-items: center; gap: 12px; }
.form-section-title:first-child { margin-top: 0; }

.form-row { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: 24px; margin-bottom: 24px; }
.form-group { display: flex; flex-direction: column; gap: 10px; position: relative; }
.form-group label { font-size: 14px; font-weight: 600; color: var(--text-muted); }
.form-control { 
    padding: 16px 20px; border: 1.5px solid var(--border-color); background: var(--bg-main); 
    border-radius: var(--radius-lg); font-size: 16px; outline: none; transition: all 0.3s ease; 
    font-family: 'Prompt', sans-serif; width: 100%; color: var(--text-main); 
}
.form-control:hover { border-color: #cbd5e1; }
.form-control:focus { background: var(--bg-card); border-color: var(--primary-color); box-shadow: 0 0 0 4px var(--primary-light); }
.form-control:disabled, .form-control[readonly] { background: var(--border-color); color: var(--text-muted); cursor: not-allowed; border-color: var(--border-color); }
textarea.form-control { resize: vertical; min-height: 140px; }

.btn { 
    padding: 14px 28px; border-radius: var(--radius-md); font-size: 15px; font-weight: 600; cursor: pointer; 
    border: 1.5px solid transparent; transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1); 
    display: inline-flex; align-items: center; justify-content: center; gap: 10px; font-family: 'Prompt', sans-serif; 
}
.btn-primary { background: linear-gradient(135deg, var(--primary-color), var(--secondary-color)); color: white; box-shadow: 0 4px 15px rgba(79, 70, 229, 0.3); }
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 8px 25px rgba(79, 70, 229, 0.4); }
.btn-outline { background: var(--bg-card); border-color: #cbd5e1; color: var(--text-main); }
.btn-outline:hover { background: var(--bg-main); border-color: var(--text-muted); transform: translateY(-2px); box-shadow: var(--shadow-sm); }
.form-actions { display: flex; gap: 15px; justify-content: flex-end; border-top: 1px dashed var(--border-color); padding-top: 30px; margin-top: 20px; }

.search-icon { position: absolute; left: 18px; top: 18px; color: var(--text-muted); font-size: 22px; }

/* Modals */
.modal-overlay { 
    position: fixed; inset: 0; background: rgba(15, 23, 42, 0.6); backdrop-filter: blur(8px); -webkit-backdrop-filter: blur(8px); 
    z-index: 1000; display: flex; align-items: center; justify-content: center; opacity: 0; animation: fadeInModal 0.3s ease forwards; 
}
.modal-content { 
    background: var(--bg-card); width: 90%; max-width: 700px; border-radius: var(--radius-xl); box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.25); 
    display: flex; flex-direction: column; max-height: 90vh; transform: scale(0.95) translateY(20px); 
    animation: slideUpModal 0.4s cubic-bezier(0.16, 1, 0.3, 1) forwards; 
}
.modal-header { padding: 25px 30px; border-bottom: 1px solid var(--border-color); display: flex; justify-content: space-between; align-items: center; }
.close-modal-btn { background: var(--bg-main); border: none; width: 44px; height: 44px; border-radius: 12px; display: flex; align-items: center; justify-content: center; color: var(--text-muted); cursor: pointer; transition: all 0.2s; }
.close-modal-btn:hover { background: var(--danger-light); color: var(--danger-color); transform: rotate(90deg); }
.modal-body { padding: 30px; overflow-y: auto; -webkit-overflow-scrolling: touch; flex: 1; min-height: 0; }
.modal-body::-webkit-scrollbar { display: none; }
.modal-body { -ms-overflow-style: none; scrollbar-width: none; }
.modal-footer { padding: 20px 30px; border-top: 1px solid var(--border-color); display: flex; justify-content: flex-end; gap: 15px;}
@keyframes fadeInModal { to { opacity: 1; } }
@keyframes slideUpModal { to { transform: scale(1) translateY(0); } }
@keyframes spin { 100% { transform: rotate(360deg); } }

/* =========================================
   6. Utilities & Colors
   ========================================= */
.text-red { color: var(--danger-color) !important; }
.text-blue { color: var(--secondary-color) !important; }
.text-amber { color: var(--warning-color) !important; }
.text-purple { color: #8b5cf6 !important; }
.text-emerald { color: var(--success-color) !important; }
.text-indigo { color: var(--primary-color) !important; }
.flex-center { display: flex; align-items: center; gap: 10px; }
.empty-state { text-align: center; padding: 40px; color: var(--text-muted); font-size: 15px; }

/* Calendar */
.calendar-header-grid { display: grid; grid-template-columns: repeat(7, 1fr); gap: 10px; text-align: center; margin-bottom: 10px; }
.calendar-cell { padding: 10px; border-radius: var(--radius-md); border: 1px solid var(--border-color); background: var(--bg-main); min-height: 90px; cursor: pointer; transition: all 0.2s ease; display: flex; flex-direction: column; align-items: center; }
.calendar-cell:hover { border-color: var(--success-color); background: var(--success-bg); transform: translateY(-2px); box-shadow: var(--shadow-sm); }
.calendar-cell.active { border-color: var(--success-color); background: var(--success-bg); box-shadow: 0 0 0 2px rgba(16, 185, 129, 0.3); }
.calendar-cell.today { border-color: var(--primary-color); background: var(--primary-light); }
.calendar-cell.today > span { color: var(--primary-hover) !important; background: white; padding: 4px 10px; border-radius: 20px; font-weight: 700;}
.appt-badge { background: var(--success-color); color: white; border-radius: 12px; padding: 4px 10px; font-size: 12px; font-weight: 600; margin-top: auto; margin-bottom: 5px; width: 95%; text-align: center; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }

/* Miscellaneous form elements */
.recorder-info { display: inline-flex; align-items: center; gap: 8px; background: var(--info-bg); color: var(--primary-hover); padding: 10px 20px; border-radius: 24px; font-size: 14px; font-weight: 600; border: 1px solid var(--info-border); }
.time-select-group { display: flex; gap: 10px; align-items: center; }
.time-separator { font-weight: 700; color: var(--text-main); font-size: 20px;}
.suggestions-box { position: absolute; top: calc(100% + 8px); left: 0; right: 0; background: white; border: 1px solid var(--border-color); border-radius: var(--radius-md); max-height: 250px; overflow-y: auto; z-index: 20; box-shadow: var(--shadow-lg); display: none; }
.suggestion-item { padding: 14px 20px; cursor: pointer; border-bottom: 1px solid var(--bg-main); font-size: 15px; display: flex; flex-direction: column; gap: 4px; transition: 0.2s; }
.suggestion-item:hover { background-color: var(--info-bg); color: var(--info-color); padding-left: 24px; }
.detail-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; margin-bottom: 20px; }
.detail-item { background: var(--bg-main); padding: 18px; border-radius: var(--radius-md); border: 1px solid var(--border-color); }
.detail-label { font-size: 13px; color: var(--text-muted); margin-bottom: 6px; font-weight: 600; text-transform: uppercase; letter-spacing: 0.5px;}
.detail-value { font-size: 16px; color: var(--text-main); font-weight: 600; word-break: break-word; }
.detail-full { grid-column: 1 / -1; }
.btn-remove { background: var(--danger-bg); color: var(--danger-color); border: none; border-radius: var(--radius-md); width: 48px; height: 48px; cursor: pointer; display: flex; align-items: center; justify-content: center; transition: all 0.2s; flex-shrink: 0; }
.btn-remove:hover { background: var(--danger-color); color: white; transform: translateY(-2px); box-shadow: 0 4px 12px rgba(239, 68, 68, 0.25); }
.involved-student-item { display: flex; gap: 15px; margin-bottom: 15px; animation: slideUpFade 0.3s ease; }

/* =========================================
   7. Responsive Design (Tablets & Mobile)
   ========================================= */
/* Mobile Sidebar Overlay & FAB */
.sidebar-overlay {
    position: fixed; inset: 0; background: rgba(15, 23, 42, 0.5); backdrop-filter: blur(4px); -webkit-backdrop-filter: blur(4px);
    z-index: 95; opacity: 0; visibility: hidden; transition: all 0.3s ease;
}
.sidebar-overlay.active { opacity: 1; visibility: visible; }

.mobile-menu-fab {
    position: fixed; bottom: max(24px, env(safe-area-inset-bottom)); right: 24px; width: 60px; height: 60px; border-radius: 50%;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color)); color: white;
    border: none; box-shadow: 0 10px 25px rgba(79, 70, 229, 0.4); display: none; align-items: center; justify-content: center;
    cursor: pointer; z-index: 1001; transition: all 0.3s ease;
}
.mobile-menu-fab:hover { transform: translateY(-4px) scale(1.05); box-shadow: 0 15px 30px rgba(79, 70, 229, 0.5); }

@media screen and (min-width: 1025px) {
    .sidebar-overlay { display: none !important; }
}

@media screen and (max-width: 1024px) {
    .sidebar { left: 0; transform: translateX(-100%) !important; box-shadow: 10px 0 30px rgba(0,0,0,0.15); width: 280px; }
    .sidebar.active { transform: translateX(0) !important; }
    .close-sidebar-btn { display: flex; }
    .main-content { margin-left: 0; width: 100%; padding: 20px; padding-bottom: 100px; }
    .mobile-menu-fab { display: flex; }
    .dashboard-cards { grid-template-columns: repeat(2, 1fr); gap: 16px; }
    #sidebarToggleBtn { display: none; }
}

/* Mobile Devices (Smartphones) - Clean & Functional Reversion */
@media screen and (max-width: 768px) {
    .detail-grid { grid-template-columns: 1fr; }
    
    /* Login Mobile Fix */
    .login-container { padding: 30px 20px; width: 100%; border-radius: 16px; }
    .login-container h2 { font-size: clamp(14px, 5vw, 20px); white-space: nowrap; margin-bottom: 5px; }
    .login-container p { font-size: 13px; margin-bottom: 25px; }
    
    /* Header */
    header { padding: 15px; flex-direction: column; align-items: flex-start; gap: 15px; border-radius: 0 0 16px 16px; }
    header.collapsed { flex-direction: row; align-items: center; padding: 12px 15px; gap: 10px; }
    header.collapsed .header-right { display: none; }
    header.collapsed .greeting { display: none; }
    header.collapsed .header-left h2 { font-size: 18px; margin-bottom: 0; }
    
    .header-left { width: 100%; }
    .header-left h2 { font-size: 20px; }
    .greeting { font-size: 14px; margin-left: 0; }
    .header-right { width: 100%; display: flex; flex-direction: column; gap: 10px; border-top: 1px solid var(--border-color); padding-top: 15px; margin-top: 5px; text-align: left; }
    
    /* Dashboard Cards - Reverted to Simple Grid */
    .dashboard-cards { grid-template-columns: 1fr; gap: 15px; }
    .card { padding: 20px; flex-direction: row; align-items: center; justify-content: space-between; border-radius: 16px; box-shadow: var(--shadow-sm); background: white; }
    .dashboard-cards .card:first-child { background: white; color: var(--text-main); }
    .dashboard-cards .card:first-child .card-title, .dashboard-cards .card:first-child .card-value { color: var(--text-main); }
    .dashboard-cards .card:first-child .card-icon { background: rgba(59, 130, 246, 0.1); color: var(--primary-color); }
    .card-header { flex-direction: row; align-items: center; gap: 15px; }
    .card-icon { width: 48px; height: 48px; font-size: 24px; order: 0; }
    .card h4 { font-size: 14px; font-weight: 500; color: var(--text-muted); }
    .card .number { font-size: 24px; font-weight: 700; align-self: center; color: var(--text-main); }

    /* Forms */
    .form-container, .content-card { padding: 15px; border-radius: 16px; }
    .form-row { grid-template-columns: 1fr; gap: 15px; }
    .form-actions { flex-direction: column-reverse; gap: 10px; }
    .form-actions .btn { width: 100%; justify-content: center; }

    /* Modals - Reverted to standard centered/full screen to allow scrolling */
    .modal-content { 
        width: 95% !important; max-width: 95% !important; margin: 20px auto; 
        max-height: 90vh; overflow-y: auto; border-radius: 16px; transform: none; animation: fadeInModal 0.2s ease-out;
    }
    .modal-header { padding: 20px; border-bottom: 1px solid var(--border-color); }
    .modal-header::before { display: none; }
    .modal-body { padding: 20px; overflow-y: visible; }
    .modal-footer { padding: 20px; flex-direction: column-reverse; gap: 10px; }
    .modal-footer .btn { width: 100%; justify-content: center; }

    /* Simple Table Card View for Mobile (Readable) */
    .filter-container { flex-wrap: nowrap; overflow-x: auto; padding-bottom: 10px; }
    .btn-filter-all, .btn-filter-pending, .btn-filter-inprogress, .btn-filter-done { flex: 0 0 auto; white-space: nowrap; }

    .main-content .cases-table { border: none; display: block; width: 100%; }
    .main-content .cases-table thead { display: none; }
    .main-content .cases-table tbody { display: flex; flex-direction: column; gap: 15px; padding: 0; }
    
    .main-content .cases-table tr { 
        display: flex; flex-direction: column; gap: 10px; background: white; 
        border-radius: 12px; border: 1px solid var(--border-color); 
        padding: 15px; box-shadow: var(--shadow-sm); width: 100%;
    }
    .main-content .cases-table tr::after { display: none; }
    
    .main-content .cases-table td { 
        display: flex; flex-direction: column; align-items: flex-start;
        padding: 0; border: none; text-align: left; width: 100%; font-size: 14px;
    }
    
    .main-content .cases-table td::before {
        font-weight: 600; color: var(--text-muted); font-size: 12px; 
        margin-bottom: 4px; display: inline-block; background: none; padding: 0; text-transform: none;
    }
    .main-content .cases-table td:not([data-label])::before { display: none !important; }
    
    .main-content .cases-table td.empty-state, .main-content .cases-table td[colspan] {
        display: block !important; text-align: center !important; padding: 30px 15px !important; border: none !important; color: var(--text-muted);
    }
    .main-content .cases-table td.empty-state::before { display: none !important; }

    .main-content .cases-table td[data-label="Case ID"], 
    .main-content .cases-table td[data-label="เลขประจำตัวนักเรียน"],
    .main-content .cases-table td[data-label="ชื่อ-สกุล"] { font-size: 15px !important; font-weight: 600 !important; color: var(--text-main) !important; }
    .main-content .cases-table td[data-label="Case ID"]::before, 
    .main-content .cases-table td[data-label="เลขประจำตัวนักเรียน"]::before,
    .main-content .cases-table td[data-label="ชื่อ-สกุล"]::before { display: none; }

    .main-content .cases-table td[data-label="รายละเอียด"] { 
        font-size: 14px; font-weight: 400; color: var(--text-main); margin-top: 5px; 
        background: #f8fafc; padding: 10px; border-radius: 8px; border: 1px solid #e2e8f0; 
    }
    .main-content .cases-table td[data-label="รายละเอียด"]::before { display: none; }

    .main-content .cases-table td[data-label="จัดการ"] { 
        flex-direction: column; gap: 8px; margin-top: 10px; padding-top: 10px; border-top: 1px solid #f1f5f9; width: 100%; 
    }
    .main-content .cases-table td[data-label="จัดการ"]::before { display: none; }
    .main-content .cases-table td[data-label="จัดการ"] > div { width: 100%; display: flex; flex-direction: column; gap: 8px; }
    .main-content .cases-table td[data-label="จัดการ"] .btn { width: 100%; justify-content: center; padding: 10px; font-size: 14px; border-radius: 8px; font-weight: 500; }

    /* Calendar Mobile */
    .calendar-cell { min-height: 80px; padding: 5px; }
    .appt-badge { font-size: 11px; padding: 3px 6px; }
    .calendar-header-grid div { font-size: 13px !important; padding: 5px; }
}

@media screen and (max-width: 400px) {
    .section-title { font-size: 20px; }
    .btn { padding: 10px 15px; font-size: 13px; }
    .dashboard-cards { grid-template-columns: 1fr; }
}
/* =========================================
   8. Signature & Special Elements
   ========================================= */
.transform-wrapper {
    position: absolute; border: 1.5px dashed var(--secondary-color);
    user-select: none; -webkit-user-select: none; touch-action: none; cursor: move;
    min-width: 50px; min-height: 25px; border-radius: 4px;
}
.transform-wrapper:hover, .transform-wrapper.active { border-style: solid; border-width: 2px; background: rgba(59, 130, 246, 0.05);}
.transform-wrapper .draggable-signature { width: 100%; height: 100%; display: block; pointer-events: none; }
.transform-handle {
    position: absolute; width: 18px; height: 18px; background: white;
    border: 2.5px solid var(--secondary-color); border-radius: 50%; box-shadow: var(--shadow-sm); z-index: 101;
}
.handle-se { bottom: -9px; right: -9px; cursor: se-resize; }
.handle-rotate { top: -35px; left: 50%; transform: translateX(-50%); cursor: grab; background: var(--warning-color); border-color: white; }
.handle-rotate:active { cursor: grabbing; }