@import url('https://fonts.googleapis.com/css2?family=Outfit:wght@300;400;500;600;700&display=swap');

:root {
    /* Color Palette - Modern Minimalist Theme */
    --primary: #1D4ED8;       /* Rich Blue (School Theme) */
    --primary-hover: #1E40AF; /* Darker Blue */
    --secondary: #64748B;     /* Slate / Gray */
    
    --background: #F8F9FA;    /* Bright White / Light Gray */
    --surface: #FFFFFF;       /* Solid Bright White surface */
    
    --text-main: #111111;     /* High contrast solid dark */
    --text-muted: #4B5563;    /* Solid dark gray */
    --border: #E5E7EB;        /* Solid light gray */
    
    /* Semantic Colors */
    --danger: #EF4444;
    --warning: #F59E0B;
    --info: #0EA5E9;
    --success: #10B981;

    /* Glassmorphism */
    --glass-bg: rgba(255, 255, 255, 0.96); /* Very slight transparency */
    --glass-border: #E5E7EB;               /* Solid border for visibility */
    --glass-shadow: none; /* Shadow removed */
    
    /* Layout */
    --radius-sm: 0.25rem;
    --radius-md: 0.5rem;
    --radius-lg: 1rem;
    --radius-full: 9999px;
}

[data-theme='dark'] {
    --primary: #3B82F6;
    --primary-hover: #60A5FA;
    --secondary: #2563EB;
    
    --background: #0B1120; /* Extremely dark blue/slate */
    --surface: rgba(30, 41, 59, 0.75);
    
    --text-main: #F8FAFC;
    --text-muted: #94A3B8;
    --border: rgba(51, 65, 85, 0.8);
    
    --glass-bg: rgba(15, 23, 42, 0.65);
    --glass-border: rgba(255, 255, 255, 0.08);
    --glass-shadow: none;
}

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

body {
    font-family: 'Outfit', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    background-color: var(--background);
    color: var(--text-main);
    line-height: 1.5;
    -webkit-font-smoothing: antialiased;
    transition: background-color 0.4s ease, color 0.4s ease;
}

/* Glassmorphism Classes */
.glass {
    background: var(--glass-bg);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border: 1px solid var(--glass-border);
    /* box-shadow: var(--glass-shadow); removed */
    border-radius: var(--radius-md);
}

.glass-card {
    background: var(--glass-bg);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border: 1px solid var(--glass-border);
    /* box-shadow: var(--glass-shadow); removed */
    border-radius: var(--radius-lg);
    padding: 2.5rem 2rem;
    transition: transform 0.3s ease, background 0.4s ease;
}

.glass-card:hover {
    /* box-shadow: 0 12px 40px 0 rgba(37, 99, 235, 0.15); removed */
    /* transform removed to prevent browser select rendering bugs */
}

/* Common UI Elements */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.5rem 1rem;
    border-radius: var(--radius-md);
    font-weight: 500;
    font-family: inherit;
    cursor: pointer;
    transition: all 0.2s ease;
    border: none;
    outline: none;
    letter-spacing: 0.015em;
    font-size: 0.95rem;
}

.btn-sm {
    padding: 0.25rem 0.75rem !important;
    font-size: 0.875rem !important;
}

.btn-lg {
    padding: 0.75rem 1.5rem !important;
    font-size: 1.125rem !important;
}

.btn-primary {
    background-color: var(--primary);
    color: #FFFFFF;
    /* box-shadow: 0 4px 14px 0 rgba(37, 99, 235, 0.39); removed */
}

.btn-primary:hover {
    background-color: var(--primary-hover);
    transform: translateY(-1px);
    /* box-shadow: 0 6px 20px rgba(37, 99, 235, 0.45); removed */
}

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

.btn-icon {
    background: var(--surface);
    border: 1px solid var(--border);
    color: var(--text-main);
    padding: 0.5rem;
    border-radius: var(--radius-full);
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all 0.2s ease;
}

.btn-icon:hover {
    background: var(--border);
    transform: scale(1.05);
}

.input-group {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    margin-bottom: 1.5rem;
}

.input-label {
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--text-main);
}

.input-field {
    width: 100%;
    padding: 0.75rem 1rem;
    border-radius: var(--radius-md);
    border: 1px solid var(--border);
    background-color: var(--surface);
    color: var(--text-main);
    font-family: inherit;
    transition: border-color 0.2s ease, background 0.4s ease;
}

.input-field:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.2);
}

/* Layout Classes */
.flex-center {
    display: flex;
    align-items: center;
    justify-content: center;
}

.min-h-screen {
    min-height: 100vh;
}

.w-full {
    width: 100%;
}

.max-w-md {
    max-width: 28rem;
}

/* Animations */
@keyframes fadeIn {
    from { opacity: 0; transform: translateY(15px); }
    to { opacity: 1; transform: translateY(0); }
}

.animate-fade-in {
    animation: fadeIn 0.5s cubic-bezier(0.16, 1, 0.3, 1) forwards;
}

/* Fancy Backgrounds */
.bg-gradient-blue {
    background-image: linear-gradient(135deg, var(--background) 0%, #DBEAFE 100%);
}

[data-theme='dark'] .bg-gradient-blue {
    background-image: linear-gradient(135deg, var(--background) 0%, #1A202C 100%);
}

#blazor-error-ui {
    background: var(--warning);
    bottom: 0;
    /* box-shadow: 0 -1px 2px rgba(0, 0, 0, 0.2); removed */
    display: none;
    left: 0;
    padding: 0.6rem 1.25rem 0.7rem 1.25rem;
    position: fixed;
    width: 100%;
    z-index: 1000;
    color: white;
}

#blazor-error-ui .dismiss {
    cursor: pointer;
    position: absolute;
    right: 0.75rem;
    top: 0.5rem;
}

/* App Layout Structure */
.app-layout {
    display: grid;
    grid-template-columns: 260px 1fr;
    grid-template-rows: 70px 1fr;
    height: 100vh;
    overflow: hidden;
    background: var(--background);
}

.app-sidebar {
    grid-column: 1 / 2;
    grid-row: 1 / 3;
    background: var(--surface);
    border-right: 1px solid var(--border);
    padding: 1.5rem 1rem;
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
    z-index: 10;
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    overflow-y: auto;
}

.app-header {
    grid-column: 2 / 3;
    grid-row: 1 / 2;
    background: var(--surface);
    border-bottom: 1px solid var(--border);
    padding: 0 2rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
    z-index: 10;
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
}

.app-content {
    grid-column: 2 / 3;
    grid-row: 2 / 3;
    padding: 2rem;
    overflow-y: auto;
}

/* Nav Links */
.nav-item {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.75rem 1rem;
    border-radius: var(--radius-md);
    color: var(--text-muted);
    text-decoration: none;
    font-weight: 500;
    transition: all 0.2s ease;
}

.nav-item:hover {
    background: var(--background);
    color: var(--primary);
}

.nav-item.active {
    background: #EFF6FF; /* Solid light blue for contrast */
    color: var(--primary);
}

[data-theme='dark'] .nav-item.active {
    background: rgba(37, 99, 235, 0.2);
}

/* Authentication Pages (No Sidebar) */
.auth-layout {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 100vh;
    width: 100vw;
    margin: 0;
    padding: 0;
}

/* Password Visibility Toggle */
.password-toggle {
    position: absolute;
    right: 0.75rem;
    top: 50%;
    transform: translateY(-50%);
    background: transparent;
    border: none;
    color: var(--text-muted);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 0.25rem;
    border-radius: var(--radius-sm);
    transition: color 0.2s ease, background 0.2s ease;
}

.password-toggle:hover {
    color: var(--text-main);
    background: rgba(0, 0, 0, 0.05);
}

[data-theme='dark'] .password-toggle:hover {
    background: rgba(255, 255, 255, 0.1);
}

/* Mobile Responsiveness */
.mobile-menu-btn {
    display: none;
    background: transparent;
    border: none;
    color: var(--text-main);
    padding: 0.5rem;
    cursor: pointer;
}

@media (max-width: 768px) {
    .app-layout {
        grid-template-columns: 1fr;
    }
    
    .app-sidebar {
        position: fixed;
        left: -260px;
        top: 0;
        bottom: 0;
        width: 260px;
        transition: left 0.3s ease;
        /* box-shadow: var(--glass-shadow); removed */
    }
    
    .app-sidebar.open {
        left: 0;
    }
    
    .app-header {
        grid-column: 1 / 2;
        padding: 0 1rem;
        gap: 1rem;
        justify-content: flex-start;
    }
    
    .app-content {
        grid-column: 1 / 2;
        padding: 1rem;
    }
    
    .mobile-menu-btn {
        display: block;
    }
    
    .header-right { margin-left: auto; }
    .hidden-mobile { display: none !important; }
    .show-mobile { display: block !important; }
}

/* Login Page Specific Layout */
.login-container {
    display: flex;
    min-height: 100vh;
    width: 100vw;
}

.login-image-side {
    display: none;
}

.login-form-side {
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 1.5rem;
}

.login-card {
    max-width: 28rem; /* mobile/tablet width */
}

@media (min-width: 1024px) {
    .login-image-side {
        display: block;
        flex: 1.2; /* Takes up slightly more than half the screen */
        background-image: url('/images/M_1.jpg');
        background-size: cover;
        background-position: center;
        background-repeat: no-repeat;
        /* box-shadow: inset -10px 0 30px rgba(0,0,0,0.1); removed */
    }
    
    .login-form-side {
        flex: 1;
        padding: 4rem;
    }

    .login-card {
        max-width: 32rem; /* Extended for desktop screens */
    }
}

/* Remove spin buttons from number inputs */
input[type="number"]::-webkit-outer-spin-button,
input[type="number"]::-webkit-inner-spin-button {
    -webkit-appearance: none;
    margin: 0;
}

input[type="number"] {
    -moz-appearance: textfield;
}

/* Print Styles */
@media print {
    .app-sidebar, .app-header, .no-print {
        display: none !important;
    }

    .app-layout {
        display: block;
        height: auto;
    }

    .app-content {
        margin: 0;
        padding: 0;
        width: 100%;
        overflow: visible;
        grid-column: 1 / -1;
        grid-row: 1 / -1;
    }

    @page {
        margin: 1cm;
    }
}

.show-mobile { display: none; }


.notification-dropdown { position: absolute; right: 0; top: 100%; margin-top: 0.5rem; width: 350px; padding: 0; background-color: var(--background); border: 1px solid var(--border); border-radius: var(--radius-md); overflow: hidden; animation: slideIn 0.2s ease-out; z-index: 1050; box-shadow: 0 10px 25px rgba(0,0,0,0.2); }
@media (max-width: 768px) { .notification-dropdown { position: fixed !important; top: 70px !important; left: 1rem !important; right: 1rem !important; width: auto !important; max-width: none !important; margin-top: 0 !important; } }

/* POS Checkout Modal Theme Styling (Light & Dark Mode) */
.pos-modal-content {
    background-color: #FFFFFF;
    border: 1px solid #E2E8F0 !important;
    border-radius: 1rem;
    box-shadow: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 8px 10px -6px rgba(0, 0, 0, 0.05);
    color: #0F172A;
    overflow: hidden;
}

[data-theme='dark'] .pos-modal-content {
    background-color: #111827;
    border: 1px solid rgba(255, 255, 255, 0.12) !important;
    box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.7);
    color: #F9FAFB;
}

.pos-modal-header {
    background: #F8FAFC;
    border-bottom: 1px solid #E2E8F0;
}

[data-theme='dark'] .pos-modal-header {
    background: rgba(255, 255, 255, 0.03);
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.pos-modal-title {
    color: #0F172A;
}

[data-theme='dark'] .pos-modal-title {
    color: #FFFFFF;
}

.pos-student-badge {
    background: #EEF2FF;
    color: #4F46E5;
    border: 1px solid #C7D2FE;
    font-weight: 500;
}

[data-theme='dark'] .pos-student-badge {
    background: rgba(99, 102, 241, 0.2);
    color: #818CF8;
    border: 1px solid rgba(99, 102, 241, 0.3);
}

.pos-subtitle-text {
    color: #64748B;
}

[data-theme='dark'] .pos-subtitle-text {
    color: #9CA3AF;
}

.pos-item-card {
    background: #F8FAFC;
    border: 1px solid #E2E8F0;
    border-radius: 0.75rem;
    padding: 0.9rem 1.1rem;
    cursor: pointer;
    transition: all 0.2s ease;
}

.pos-item-card:hover {
    border-color: #CBD5E1;
}

.pos-item-card.selected {
    background: #EEF2FF;
    border: 1px solid #6366F1;
}

[data-theme='dark'] .pos-item-card {
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid rgba(255, 255, 255, 0.08);
}

[data-theme='dark'] .pos-item-card:hover {
    border-color: rgba(255, 255, 255, 0.2);
}

[data-theme='dark'] .pos-item-card.selected {
    background: rgba(99, 102, 241, 0.12);
    border: 1px solid rgba(99, 102, 241, 0.5);
}

.pos-item-title {
    font-weight: 600;
    color: #1E293B;
    font-size: 0.95rem;
}

[data-theme='dark'] .pos-item-title {
    color: #F3F4F6;
}

.pos-item-subtext {
    font-size: 0.75rem;
    color: #64748B;
}

[data-theme='dark'] .pos-item-subtext {
    color: #9CA3AF;
}

.pos-item-price {
    font-weight: 700;
    font-size: 1.05rem;
    color: #334155;
}

.pos-item-card.selected .pos-item-price {
    color: #4F46E5;
}

[data-theme='dark'] .pos-item-price {
    color: #E5E7EB;
}

[data-theme='dark'] .pos-item-card.selected .pos-item-price {
    color: #818CF8;
}

.pos-checkbox-box {
    width: 22px;
    height: 22px;
    border-radius: 6px;
    border: 2px solid #94A3B8;
    background: transparent;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.2s;
}

.pos-item-card.selected .pos-checkbox-box {
    border-color: #4F46E5;
    background: #4F46E5;
}

[data-theme='dark'] .pos-checkbox-box {
    border-color: #4B5563;
}

[data-theme='dark'] .pos-item-card.selected .pos-checkbox-box {
    border-color: #6366F1;
    background: #6366F1;
}

.pos-details-card {
    background: #F8FAFC;
    border: 1px solid #E2E8F0;
    border-radius: 0.75rem;
    padding: 1.2rem;
}

[data-theme='dark'] .pos-details-card {
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid rgba(255, 255, 255, 0.08);
}

.pos-details-title {
    font-size: 0.85rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: #64748B;
    margin-bottom: 0.9rem;
}

[data-theme='dark'] .pos-details-title {
    color: #9CA3AF;
}

.pos-input-field {
    background-color: #FFFFFF !important;
    color: #0F172A !important;
    border: 1px solid #CBD5E1 !important;
}

[data-theme='dark'] .pos-input-field {
    background-color: #1E293B !important;
    color: #F8FAFC !important;
    border: 1px solid #334155 !important;
}

.pos-modal-footer {
    background: #F8FAFC;
    border-top: 1px solid #E2E8F0;
}

[data-theme='dark'] .pos-modal-footer {
    background: rgba(0,0,0,0.3);
    border-top: 1px solid rgba(255,255,255,0.08);
}

.pos-total-label {
    font-size: 0.75rem;
    color: #64748B;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

[data-theme='dark'] .pos-total-label {
    color: #9CA3AF;
}

.pos-total-amount {
    font-size: 1.4rem;
    font-weight: 800;
    color: #059669;
}

[data-theme='dark'] .pos-total-amount {
    color: #10B981;
}

.pos-total-subtext {
    font-size: 0.8rem;
    font-weight: 500;
    color: #64748B;
    margin-left: 0.5rem;
}

[data-theme='dark'] .pos-total-subtext {
    color: #9CA3AF;
}