/**
 * Verkbeiðnir Hrafnagilsskóla - Mobile-First Stylesheet
 */

/* ===== CSS Variables ===== */
:root {
    --primary: #2563eb;
    --primary-dark: #1d4ed8;
    --primary-light: #3b82f6;
    --success: #16a34a;
    --success-light: #22c55e;
    --warning: #f59e0b;
    --warning-light: #fbbf24;
    --danger: #dc2626;
    --danger-light: #ef4444;
    --gray-50: #f9fafb;
    --gray-100: #f3f4f6;
    --gray-200: #e5e7eb;
    --gray-300: #d1d5db;
    --gray-400: #9ca3af;
    --gray-500: #6b7280;
    --gray-600: #4b5563;
    --gray-700: #374151;
    --gray-800: #1f2937;
    --gray-900: #111827;

    --radius: 8px;
    --radius-lg: 12px;
    --shadow: 0 1px 3px rgba(0,0,0,0.1);
    --shadow-md: 0 4px 6px rgba(0,0,0,0.1);
    --shadow-lg: 0 10px 15px rgba(0,0,0,0.1);

    --header-height: 56px;
    --bottom-nav-height: 64px;
    --sidebar-width: 260px;

    --safe-area-inset-bottom: env(safe-area-inset-bottom, 0px);
}

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

html {
    font-size: 16px;
    -webkit-text-size-adjust: 100%;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    background: var(--gray-100);
    color: var(--gray-800);
    line-height: 1.5;
    min-height: 100vh;
    overflow-x: hidden;
}

a {
    color: var(--primary);
    text-decoration: none;
}

a:hover {
    text-decoration: underline;
}

/* ===== Typography ===== */
h1, h2, h3, h4, h5, h6 {
    font-weight: 600;
    line-height: 1.25;
    color: var(--gray-900);
}

h1 { font-size: 1.5rem; }
h2 { font-size: 1.25rem; }
h3 { font-size: 1.125rem; }

/* ===== Header ===== */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    height: var(--header-height);
    background: var(--primary);
    color: white;
    z-index: 100;
    box-shadow: var(--shadow-md);
}

.header-content {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 100%;
    padding: 0 1rem;
}

.header-title {
    font-size: 1.125rem;
    font-weight: 600;
}

.header-title a {
    color: white;
    text-decoration: none;
}

/* Menu Toggle Button */
.menu-toggle {
    display: flex;
    flex-direction: column;
    justify-content: center;
    gap: 5px;
    width: 40px;
    height: 40px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 8px;
}

.menu-toggle span {
    display: block;
    width: 24px;
    height: 2px;
    background: white;
    border-radius: 1px;
    transition: transform 0.2s, opacity 0.2s;
}

.menu-toggle.active span:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
}

.menu-toggle.active span:nth-child(2) {
    opacity: 0;
}

.menu-toggle.active span:nth-child(3) {
    transform: rotate(-45deg) translate(5px, -5px);
}

/* User Menu */
.user-menu {
    position: relative;
}

.user-btn {
    background: none;
    border: none;
    cursor: pointer;
    padding: 4px;
}

.user-avatar {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 36px;
    height: 36px;
    background: rgba(255,255,255,0.2);
    border-radius: 50%;
    font-weight: 600;
    color: white;
}

.user-dropdown {
    display: none;
    position: absolute;
    top: 100%;
    right: 0;
    min-width: 200px;
    background: white;
    border-radius: var(--radius);
    box-shadow: var(--shadow-lg);
    overflow: hidden;
    margin-top: 8px;
}

.user-dropdown.show {
    display: block;
}

.user-dropdown .user-info {
    padding: 1rem;
    background: var(--gray-50);
}

.user-dropdown .user-info strong {
    display: block;
    color: var(--gray-900);
}

.user-dropdown .user-info span {
    font-size: 0.875rem;
    color: var(--gray-500);
}

.user-dropdown hr {
    border: none;
    border-top: 1px solid var(--gray-200);
}

.user-dropdown a {
    display: block;
    padding: 0.75rem 1rem;
    color: var(--gray-700);
    transition: background 0.2s;
}

.user-dropdown a:hover {
    background: var(--gray-50);
    text-decoration: none;
}

/* ===== Sidebar ===== */
.sidebar {
    position: fixed;
    top: 0;
    left: -100%;
    width: 85%;
    max-width: 300px;
    height: 100vh;
    background: white;
    z-index: 200;
    transition: left 0.3s ease;
    overflow-y: auto;
    box-shadow: var(--shadow-lg);
}

.sidebar.open {
    left: 0;
}

.sidebar-overlay {
    display: none;
    position: fixed;
    inset: 0;
    background: rgba(0,0,0,0.5);
    z-index: 150;
}

.sidebar-overlay.show {
    display: block;
}

.sidebar-header {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 1rem;
    background: var(--primary);
    color: white;
}

.logo {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    background: rgba(255,255,255,0.2);
    border-radius: var(--radius);
    font-weight: 700;
}

.logo-text {
    font-weight: 600;
    font-size: 1.125rem;
}

.nav-list {
    list-style: none;
    padding: 0.5rem 0;
}

.nav-section {
    padding: 1rem 1rem 0.5rem;
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    color: var(--gray-500);
    letter-spacing: 0.05em;
}

.nav-item {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.875rem 1rem;
    color: var(--gray-700);
    transition: background 0.2s, color 0.2s;
}

.nav-item:hover {
    background: var(--gray-50);
    text-decoration: none;
}

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

.nav-icon {
    width: 20px;
    height: 20px;
    flex-shrink: 0;
}

/* ===== Main Content ===== */
.main-content {
    padding-top: var(--header-height);
    padding-bottom: calc(var(--bottom-nav-height) + var(--safe-area-inset-bottom) + 1rem);
    min-height: 100vh;
}

/* ===== Bottom Navigation ===== */
.bottom-nav {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    height: calc(var(--bottom-nav-height) + var(--safe-area-inset-bottom));
    padding-bottom: var(--safe-area-inset-bottom);
    background: white;
    border-top: 1px solid var(--gray-200);
    display: flex;
    justify-content: space-around;
    align-items: center;
    z-index: 100;
}

.bottom-nav-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 2px;
    padding: 8px 12px;
    color: var(--gray-500);
    font-size: 0.625rem;
    text-decoration: none;
    min-width: 64px;
}

.bottom-nav-item svg {
    width: 24px;
    height: 24px;
}

.bottom-nav-item.active {
    color: var(--primary);
}

.bottom-nav-item.bottom-nav-add {
    background: var(--primary);
    color: white;
    border-radius: 50%;
    width: 56px;
    height: 56px;
    margin-top: -20px;
    box-shadow: var(--shadow-md);
}

.bottom-nav-item.bottom-nav-add span {
    display: none;
}

/* ===== Alerts / Flash Messages ===== */
.alert {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0.875rem 1rem;
    margin: 1rem;
    border-radius: var(--radius);
    font-size: 0.875rem;
}

.alert-success {
    background: #dcfce7;
    color: #166534;
    border: 1px solid #bbf7d0;
}

.alert-error {
    background: #fee2e2;
    color: #991b1b;
    border: 1px solid #fecaca;
}

.alert-warning {
    background: #fef3c7;
    color: #92400e;
    border: 1px solid #fde68a;
}

.alert-info {
    background: #dbeafe;
    color: #1e40af;
    border: 1px solid #bfdbfe;
}

.alert-close {
    background: none;
    border: none;
    font-size: 1.25rem;
    cursor: pointer;
    opacity: 0.7;
    color: inherit;
}

/* ===== Buttons ===== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 0.75rem 1.5rem;
    font-size: 1rem;
    font-weight: 500;
    border-radius: var(--radius);
    border: none;
    cursor: pointer;
    transition: background 0.2s, transform 0.1s;
    text-decoration: none;
    min-height: 48px; /* Touch target */
}

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

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

.btn-primary:hover {
    background: var(--primary-dark);
    text-decoration: none;
}

.btn-secondary {
    background: var(--gray-200);
    color: var(--gray-700);
}

.btn-secondary:hover {
    background: var(--gray-300);
    text-decoration: none;
}

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

.btn-danger:hover {
    background: var(--danger-light);
}

.btn-outline {
    background: transparent;
    border: 2px solid var(--primary);
    color: var(--primary);
}

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

.btn-block {
    width: 100%;
}

.btn-google {
    background: white;
    color: var(--gray-700);
    border: 1px solid var(--gray-300);
    font-weight: 500;
}

.btn-google:hover {
    background: var(--gray-50);
    border-color: var(--gray-400);
}

.btn-google svg {
    width: 20px;
    height: 20px;
}

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

.form-label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 500;
    color: var(--gray-700);
}

.form-input,
.form-select,
.form-textarea {
    width: 100%;
    padding: 0.75rem 1rem;
    font-size: 1rem;
    border: 1px solid var(--gray-300);
    border-radius: var(--radius);
    background: white;
    color: var(--gray-800);
    transition: border-color 0.2s, box-shadow 0.2s;
    min-height: 48px; /* Touch target */
}

.form-input:focus,
.form-select:focus,
.form-textarea:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

.form-textarea {
    min-height: 120px;
    resize: vertical;
}

.form-error {
    color: var(--danger);
    font-size: 0.875rem;
    margin-top: 0.25rem;
}

.form-hint {
    color: var(--gray-500);
    font-size: 0.875rem;
    margin-top: 0.25rem;
}

/* Radio & Checkbox Groups */
.radio-group,
.checkbox-group {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem;
}

.radio-option,
.checkbox-option {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.625rem 1rem;
    background: var(--gray-100);
    border-radius: var(--radius);
    cursor: pointer;
    transition: background 0.2s;
    min-height: 48px;
}

.radio-option:hover,
.checkbox-option:hover {
    background: var(--gray-200);
}

.radio-option input,
.checkbox-option input {
    width: 18px;
    height: 18px;
    accent-color: var(--primary);
}

/* ===== Cards ===== */
.card {
    background: white;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow);
    overflow: hidden;
}

.card-header {
    padding: 1rem;
    border-bottom: 1px solid var(--gray-200);
}

.card-body {
    padding: 1rem;
}

.card-footer {
    padding: 1rem;
    border-top: 1px solid var(--gray-200);
    background: var(--gray-50);
}

/* ===== Badges ===== */
.badge {
    display: inline-flex;
    align-items: center;
    padding: 0.25rem 0.625rem;
    font-size: 0.75rem;
    font-weight: 500;
    border-radius: 9999px;
}

.badge-blue { background: #dbeafe; color: #1e40af; }
.badge-yellow { background: #fef3c7; color: #92400e; }
.badge-orange { background: #ffedd5; color: #9a3412; }
.badge-purple { background: #f3e8ff; color: #6b21a8; }
.badge-green { background: #dcfce7; color: #166534; }
.badge-gray { background: #f3f4f6; color: #374151; }
.badge-red { background: #fee2e2; color: #991b1b; }

/* ===== Ticket List ===== */
.ticket-list {
    padding: 0.5rem;
}

.ticket-card {
    display: block;
    background: white;
    border-radius: var(--radius-lg);
    padding: 1rem;
    margin-bottom: 0.75rem;
    box-shadow: var(--shadow);
    text-decoration: none;
    color: inherit;
    transition: box-shadow 0.2s, transform 0.1s;
}

.ticket-card:hover {
    box-shadow: var(--shadow-md);
    text-decoration: none;
}

.ticket-card:active {
    transform: scale(0.99);
}

.ticket-card.aging {
    border-left: 4px solid var(--warning);
}

.ticket-card.high-priority {
    border-left: 4px solid var(--danger);
}

.ticket-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: 0.5rem;
}

.ticket-number {
    font-size: 0.75rem;
    color: var(--gray-500);
}

.ticket-title {
    font-weight: 600;
    color: var(--gray-900);
    margin-bottom: 0.5rem;
}

.ticket-meta {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    font-size: 0.75rem;
    color: var(--gray-500);
}

/* ===== Page Container ===== */
.page-container {
    padding: 1rem;
    max-width: 800px;
    margin: 0 auto;
}

.page-header {
    margin-bottom: 1.5rem;
}

.page-title {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--gray-900);
}

.page-subtitle {
    color: var(--gray-500);
    margin-top: 0.25rem;
}

/* ===== Filter Tabs ===== */
.filter-tabs {
    display: flex;
    gap: 0.5rem;
    overflow-x: auto;
    padding: 0.5rem 1rem;
    margin: 0 -1rem;
    -webkit-overflow-scrolling: touch;
}

.filter-tab {
    flex-shrink: 0;
    padding: 0.5rem 1rem;
    background: var(--gray-100);
    border-radius: 9999px;
    font-size: 0.875rem;
    color: var(--gray-600);
    text-decoration: none;
    white-space: nowrap;
}

.filter-tab.active {
    background: var(--primary);
    color: white;
}

.filter-tab .count {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 20px;
    height: 20px;
    padding: 0 6px;
    background: rgba(0,0,0,0.1);
    border-radius: 10px;
    font-size: 0.75rem;
    margin-left: 0.25rem;
}

/* ===== Divider ===== */
.divider {
    display: flex;
    align-items: center;
    text-align: center;
    margin: 1.5rem 0;
    color: var(--gray-400);
    font-size: 0.875rem;
}

.divider::before,
.divider::after {
    content: '';
    flex: 1;
    border-bottom: 1px solid var(--gray-200);
}

.divider::before { margin-right: 1rem; }
.divider::after { margin-left: 1rem; }

/* ===== Empty State ===== */
.empty-state {
    text-align: center;
    padding: 3rem 1.5rem;
    color: var(--gray-500);
}

.empty-state svg {
    width: 64px;
    height: 64px;
    margin-bottom: 1rem;
    opacity: 0.5;
}

.empty-state h3 {
    color: var(--gray-700);
    margin-bottom: 0.5rem;
}

/* ===== Desktop Styles ===== */
@media (min-width: 768px) {
    .menu-toggle {
        display: none;
    }

    .sidebar {
        left: 0;
        width: var(--sidebar-width);
        top: 0;
        box-shadow: var(--shadow);
    }

    .sidebar-overlay {
        display: none !important;
    }

    .header {
        left: var(--sidebar-width);
    }

    .main-content {
        margin-left: var(--sidebar-width);
        padding-bottom: 2rem;
    }

    .bottom-nav {
        display: none;
    }

    .page-container {
        padding: 2rem;
    }

    h1 { font-size: 1.75rem; }
    h2 { font-size: 1.5rem; }

    .radio-group,
    .checkbox-group {
        flex-direction: row;
    }
}

/* ===== Utilities ===== */
.text-center { text-align: center; }
.text-right { text-align: right; }
.mt-1 { margin-top: 0.25rem; }
.mt-2 { margin-top: 0.5rem; }
.mt-3 { margin-top: 1rem; }
.mt-4 { margin-top: 1.5rem; }
.mb-1 { margin-bottom: 0.25rem; }
.mb-2 { margin-bottom: 0.5rem; }
.mb-3 { margin-bottom: 1rem; }
.mb-4 { margin-bottom: 1.5rem; }
.hidden { display: none; }
.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}