/* 
   School WFH System - Mockup-Inspired Design
   Colors: Blue (#1e5aa0), Green (#4caf50), Orange (#ff7043), Light Blue (#1976d2)
*/

:root {
    --primary: #4f46e5;
    --primary-hover: #4338ca;
    --primary-light: #eef2ff;
    --success: #10b981;
    --success-hover: #059669;
    --danger: #ef4444;
    --danger-hover: #dc2626;
    --warning: #f59e0b;
    --info: #3b82f6;
    --background: #f8fafc;
    --surface: #ffffff;
    --text-main: #0f172a;
    --text-secondary: #64748b;
    --text-muted: #94a3b8;
    --border: #e2e8f0;
    --radius-sm: 0.5rem;
    --radius-md: 0.75rem;
    --radius-lg: 1rem;
    --radius-xl: 1.5rem;
    --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
    --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
    --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);
    --glass: rgba(255, 255, 255, 0.7);
    --glass-border: rgba(255, 255, 255, 0.4);
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    background-color: var(--background);
    color: var(--text-main);
    font-family: 'Prompt', 'Inter', system-ui, sans-serif;
    line-height: 1.5;
    min-height: 100vh;
}

/* Glassmorphism Utilities */
.glass {
    background: var(--glass);
    -webkit-backdrop-filter: blur(12px);
    backdrop-filter: blur(12px);
    border: 1px solid var(--glass-border);
}

/* Layout */
.header-mobile {
    background: linear-gradient(135deg, var(--primary), var(--primary-hover));
    color: white;
    padding: 1.25rem;
    position: sticky;
    top: 0;
    z-index: 100;
    box-shadow: var(--shadow-md);
}

.container-mobile {
    max-width: 480px;
    margin: 0 auto;
    padding: 1.25rem;
}

/* Cards */
.card {
    background: var(--surface);
    border-radius: var(--radius-lg);
    padding: 1.5rem;
    margin-bottom: 1.25rem;
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--border);
    transition: transform 0.2s, box-shadow 0.2s;
}

.card:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

/* Buttons */
.btn-premium {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.75rem;
    width: 100%;
    padding: 1rem 1.5rem;
    border-radius: var(--radius-md);
    font-weight: 600;
    font-size: 1rem;
    text-decoration: none;
    border: none;
    cursor: pointer;
    transition: all 0.2s ease;
    box-shadow: var(--shadow-md);
    font-family: inherit;
}

.btn-premium:active {
    transform: scale(0.98);
}

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

.btn-premium-primary:hover {
    background: var(--primary-hover);
    box-shadow: 0 4px 12px rgba(79, 70, 229, 0.4);
}

.btn-premium-success {
    background: var(--success);
    color: white;
}

.btn-premium-success:hover {
    background: var(--success-hover);
    box-shadow: 0 4px 12px rgba(16, 185, 129, 0.4);
}

.btn-premium-danger {
    background: var(--danger);
    color: white;
}

.btn-premium-danger:hover {
    background: var(--danger-hover);
    box-shadow: 0 4px 12px rgba(239, 68, 68, 0.4);
}

.btn-premium-outline {
    background: white;
    color: var(--text-main);
    border: 1px solid var(--border);
    box-shadow: var(--shadow-sm);
}

.btn-premium-outline:hover {
    background: var(--background);
    border-color: var(--text-muted);
}

/* Forms */
.form-group {
    margin-bottom: 1.25rem;
}

label {
    display: block;
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--text-secondary);
    margin-bottom: 0.5rem;
}

input[type="text"], 
input[type="password"], 
input[type="date"], 
select, 
textarea {
    width: 100%;
    padding: 0.75rem 1rem;
    border-radius: var(--radius-md);
    border: 1px solid var(--border);
    background: var(--surface);
    color: var(--text-main);
    font-size: 1rem;
    font-family: inherit;
    transition: all 0.2s;
}

input:focus, 
select:focus, 
textarea:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 4px var(--primary-light);
}

/* Badges */
.badge {
    display: inline-flex;
    align-items: center;
    gap: 0.375rem;
    padding: 0.25rem 0.75rem;
    border-radius: 9999px;
    font-size: 0.75rem;
    font-weight: 600;
}

.badge-present {
    background: #d1fae5;
    color: #065f46;
}

.badge-absent {
    background: #fee2e2;
    color: #991b1b;
}

/* Toasts */
.toast-container {
    position: fixed;
    top: 1.5rem;
    left: 50%;
    transform: translateX(-50%);
    width: 90%;
    max-width: 400px;
    z-index: 1000;
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.toast {
    background: white;
    padding: 1rem 1.25rem;
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-lg);
    display: flex;
    align-items: center;
    gap: 0.75rem;
    border-left: 4px solid var(--primary);
    animation: slideIn 0.3s ease-out;
}

.toast.success { border-left-color: var(--success); }
.toast.error { border-left-color: var(--danger); }
.toast.warning { border-left-color: var(--warning); }

.toast.fade-out {
    animation: slideOut 0.3s ease-in forwards;
}

@keyframes slideIn {
    from { opacity: 0; transform: translateY(-1rem); }
    to { opacity: 1; transform: translateY(0); }
}

@keyframes slideOut {
    from { opacity: 1; transform: translateY(0); }
    to { opacity: 0; transform: translateY(-1rem); }
}

/* Biometric Scan */
.scan-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(to bottom, transparent, rgba(79, 70, 229, 0.4), transparent);
    animation: scanAnimation 2s infinite linear;
    pointer-events: none;
}

@keyframes scanAnimation {
    0% { transform: translateY(-100%); }
    100% { transform: translateY(100%); }
}

/* Utils */
.text-center { text-align: center; }
.mt-4 { margin-top: 1rem; }
.mb-4 { margin-bottom: 1rem; }