/* ========================================
   Plus-Docs Modern Design System
   ======================================== */

/* CSS Variables */
:root {
    --color-primary: #2563eb;
    --color-primary-dark: #1d4ed8;
    --color-primary-light: #3b82f6;
    --color-secondary: #64748b;
    --color-success: #10b981;
    --color-warning: #f59e0b;
    --color-error: #ef4444;
    --color-background: #f8fafc;
    --color-surface: #ffffff;
    --color-text: #1e293b;
    --color-text-muted: #64748b;
    --color-border: #e2e8f0;
    --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
    --shadow: 0 1px 3px 0 rgb(0 0 0 / 0.1), 0 1px 2px -1px rgb(0 0 0 / 0.1);
    --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);
    --shadow-xl: 0 20px 25px -5px rgb(0 0 0 / 0.1), 0 8px 10px -6px rgb(0 0 0 / 0.1);
    --radius-sm: 0.375rem;
    --radius: 0.5rem;
    --radius-md: 0.75rem;
    --radius-lg: 1rem;
    --transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
    --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-sans);
    font-size: 16px;
    line-height: 1.6;
    color: var(--color-text);
    background: var(--color-background);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

.container {
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 1.5rem;
}

/* ========================================
   Header
   ======================================== */
.header {
    background: var(--color-surface);
    border-bottom: 1px solid var(--color-border);
    position: sticky;
    top: 0;
    z-index: 100;
    backdrop-filter: blur(8px);
    background: rgba(255, 255, 255, 0.95);
}

.header .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 4rem;
}

.logo {
    font-size: 1.5rem;
    font-weight: 800;
    color: var(--color-primary);
    text-decoration: none;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    transition: var(--transition);
}

.logo:hover {
    color: var(--color-primary-dark);
    transform: scale(1.02);
}

.logo-icon {
    width: 32px;
    height: 32px;
    stroke-width: 2;
    flex-shrink: 0;
}

.logo svg {
    width: 32px;
    height: 32px;
    stroke-width: 2;
}

.nav {
    display: flex;
    gap: 2rem;
    align-items: center;
}

.nav a {
    color: var(--color-text-muted);
    text-decoration: none;
    font-weight: 500;
    font-size: 0.875rem;
    transition: var(--transition);
    position: relative;
}

.nav a::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--color-primary);
    transition: var(--transition);
}

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

.nav a:hover::after {
    width: 100%;
}

.nav a svg,
.nav-icon {
    width: 16px;
    height: 16px;
    stroke-width: 2;
}

/* ========================================
   Buttons
   ======================================== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 0.625rem 1.25rem;
    border-radius: var(--radius);
    font-weight: 600;
    font-size: 0.875rem;
    text-decoration: none;
    cursor: pointer;
    border: none;
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}

.btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, rgba(255,255,255,0.2) 0%, transparent 50%);
    opacity: 0;
    transition: opacity 0.3s;
}

.btn:hover::before {
    opacity: 1;
}

.btn:active {
    transform: translateY(1px);
}

.btn-primary {
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
    color: #fff;
    box-shadow: 0 4px 6px -1px rgba(37, 99, 235, 0.3);
}

.btn-primary:hover {
    background: linear-gradient(135deg, var(--color-primary-dark) 0%, #1e40af 100%);
    box-shadow: 0 6px 12px -2px rgba(37, 99, 235, 0.4);
    transform: translateY(-1px);
}

.btn-secondary {
    background: var(--color-surface);
    color: var(--color-text);
    border: 1px solid var(--color-border);
    box-shadow: var(--shadow-sm);
}

.btn-secondary:hover {
    background: var(--color-background);
    border-color: var(--color-secondary);
    box-shadow: var(--shadow);
}

.btn-success {
    background: linear-gradient(135deg, var(--color-success) 0%, #059669 100%);
    color: #fff;
}

.btn-success:hover {
    background: linear-gradient(135deg, #059669 0%, #047857 100%);
    transform: translateY(-1px);
}

.btn-ghost {
    background: transparent;
    color: var(--color-text-muted);
}

.btn-ghost:hover {
    background: var(--color-background);
    color: var(--color-text);
}

.btn-large {
    padding: 0.875rem 2rem;
    font-size: 1rem;
}

.btn-small {
    padding: 0.375rem 0.75rem;
    font-size: 0.75rem;
}

.btn-icon,
.btn svg {
    width: 16px;
    height: 16px;
    stroke-width: 2;
    flex-shrink: 0;
}

.btn-large .btn-icon,
.btn-large svg {
    width: 18px;
    height: 18px;
}

/* ========================================
   Hero Section
   ======================================== */
.hero {
    background: linear-gradient(135deg, var(--color-primary) 0%, #1e40af 50%, #1e3a8a 100%);
    color: #fff;
    padding: 5rem 0 6rem;
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -10%;
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, rgba(255,255,255,0.1) 0%, transparent 70%);
    border-radius: 50%;
}

.hero::after {
    content: '';
    position: absolute;
    bottom: -30%;
    left: -5%;
    width: 400px;
    height: 400px;
    background: radial-gradient(circle, rgba(255,255,255,0.08) 0%, transparent 70%);
    border-radius: 50%;
}

.hero .container {
    position: relative;
    z-index: 1;
    text-align: center;
}

.hero h1 {
    font-size: 3.5rem;
    font-weight: 800;
    line-height: 1.1;
    margin-bottom: 1.5rem;
    letter-spacing: -0.02em;
}

.hero p {
    font-size: 1.25rem;
    opacity: 0.9;
    max-width: 600px;
    margin: 0 auto 2.5rem;
    line-height: 1.6;
}

.hero-cta {
    display: flex;
    gap: 1rem;
    justify-content: center;
    margin-top: 2rem;
}

/* Search Box */
.search-box {
    display: flex;
    gap: 0.75rem;
    max-width: 640px;
    margin: 0 auto;
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    padding: 0.5rem;
    border-radius: var(--radius-lg);
    border: 1px solid rgba(255, 255, 255, 0.2);
}

.search-box input {
    flex: 1;
    padding: 1rem 1.25rem;
    border: none;
    border-radius: var(--radius-md);
    font-size: 1rem;
    background: #fff;
    color: var(--color-text);
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
}

.search-box input:focus {
    outline: none;
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.3);
}

.search-box input::placeholder {
    color: var(--color-text-muted);
}

.search-box .btn {
    padding: 1rem 1.75rem;
    white-space: nowrap;
}

/* ========================================
   Categories Section
   ======================================== */
.categories {
    padding: 4rem 0;
    background: var(--color-background);
}

.section-header {
    text-align: center;
    margin-bottom: 3rem;
}

.section-header h2 {
    font-size: 2.25rem;
    font-weight: 700;
    color: var(--color-text);
    margin-bottom: 0.75rem;
}

.section-header p {
    color: var(--color-text-muted);
    font-size: 1.125rem;
    max-width: 600px;
    margin: 0 auto;
}

.categories-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 1.5rem;
}

.category-card {
    background: var(--color-surface);
    padding: 2rem 1.5rem;
    border-radius: var(--radius-lg);
    text-decoration: none;
    color: inherit;
    box-shadow: var(--shadow);
    transition: var(--transition);
    border: 1px solid var(--color-border);
    position: relative;
    overflow: hidden;
}

.category-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 4px;
    background: linear-gradient(90deg, var(--color-primary) 0%, var(--color-primary-light) 100%);
    transform: scaleX(0);
    transition: transform 0.3s ease;
}

.category-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-xl);
    border-color: var(--color-primary-light);
}

.category-card:hover::before {
    transform: scaleX(1);
}

.category-icon {
    font-size: 2.5rem;
    margin-bottom: 1rem;
    display: block;
}

.category-card h3 {
    color: var(--color-text);
    font-size: 1.125rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
}

.category-card p {
    color: var(--color-text-muted);
    font-size: 0.875rem;
    line-height: 1.5;
}

/* ========================================
   Documents Section
   ======================================== */
.documents {
    padding: 4rem 0;
    background: var(--color-surface);
    border-top: 1px solid var(--color-border);
}

.documents-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
    gap: 1.5rem;
}

.document-card {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    padding: 1.75rem;
    display: flex;
    flex-direction: column;
    gap: 1rem;
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}

.document-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 4px;
    height: 100%;
    background: linear-gradient(180deg, var(--color-primary) 0%, var(--color-primary-light) 100%);
    opacity: 0;
    transition: opacity 0.3s;
}

.document-card:hover {
    box-shadow: var(--shadow-lg);
    border-color: var(--color-primary-light);
    transform: translateY(-2px);
}

.document-card:hover::before {
    opacity: 1;
}

.document-card .category {
    font-size: 0.75rem;
    color: var(--color-primary);
    text-transform: uppercase;
    font-weight: 700;
    letter-spacing: 0.1em;
}

.document-card h3 {
    font-size: 1.25rem;
    font-weight: 600;
    line-height: 1.3;
}

.document-card h3 a {
    color: var(--color-text);
    text-decoration: none;
    transition: color 0.2s;
}

.document-card h3 a:hover {
    color: var(--color-primary);
}

.document-card p {
    color: var(--color-text-muted);
    font-size: 0.9375rem;
    line-height: 1.6;
    flex: 1;
}

.document-meta {
    display: flex;
    align-items: center;
    gap: 1rem;
    font-size: 0.875rem;
    color: var(--color-text-muted);
}

.document-meta span {
    display: flex;
    align-items: center;
    gap: 0.25rem;
}

.document-actions {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: 1rem;
    border-top: 1px solid var(--color-border);
}

.price {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--color-text);
}

.price .currency {
    font-size: 1rem;
    font-weight: 500;
    color: var(--color-text-muted);
}

.no-results {
    text-align: center;
    color: var(--color-text-muted);
    padding: 4rem 2rem;
    background: var(--color-background);
    border-radius: var(--radius-lg);
    grid-column: 1 / -1;
}

.no-results-icon {
    font-size: 3rem;
    margin-bottom: 1rem;
    opacity: 0.5;
}

/* Loading States */
.loading {
    text-align: center;
    color: var(--color-text-muted);
    padding: 3rem;
}

.spinner {
    display: inline-block;
    width: 40px;
    height: 40px;
    border: 3px solid var(--color-border);
    border-top-color: var(--color-primary);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

.skeleton {
    background: linear-gradient(90deg, var(--color-border) 25%, #f1f5f9 50%, var(--color-border) 75%);
    background-size: 200% 100%;
    animation: shimmer 1.5s infinite;
    border-radius: var(--radius);
}

@keyframes shimmer {
    0% { background-position: 200% 0; }
    100% { background-position: -200% 0; }
}

/* ========================================
   Document Page
   ======================================== */
.document-page {
    padding: 3rem 0;
    background: var(--color-background);
    min-height: calc(100vh - 4rem);
}

.document-header {
    background: var(--color-surface);
    padding: 2.5rem;
    border-radius: var(--radius-lg);
    margin-bottom: 2rem;
    box-shadow: var(--shadow);
}

.breadcrumbs {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.875rem;
    color: var(--color-text-muted);
    margin-bottom: 1rem;
}

.breadcrumbs a {
    color: var(--color-text-muted);
    text-decoration: none;
    transition: color 0.2s;
}

.breadcrumbs a:hover {
    color: var(--color-primary);
}

.document-header .category {
    display: inline-block;
    color: var(--color-primary);
    font-weight: 600;
    font-size: 0.875rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: 0.75rem;
}

.document-header h1 {
    font-size: 2rem;
    font-weight: 700;
    color: var(--color-text);
    margin-bottom: 1rem;
    line-height: 1.2;
}

.document-header .description {
    color: var(--color-text-muted);
    font-size: 1.125rem;
    line-height: 1.6;
    max-width: 700px;
}

.price-tag {
    display: inline-flex;
    align-items: baseline;
    gap: 0.25rem;
    font-size: 2rem;
    font-weight: 700;
    color: var(--color-primary);
    margin-top: 1.5rem;
}

.price-tag .currency {
    font-size: 1.25rem;
    font-weight: 500;
}

/* Document Form */
.document-form-wrapper {
    background: var(--color-surface);
    padding: 2.5rem;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow);
}

.document-form h2 {
    font-size: 1.5rem;
    font-weight: 600;
    margin-bottom: 1.5rem;
    color: var(--color-text);
}

.form-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1.5rem;
}

@media (max-width: 768px) {
    .form-grid {
        grid-template-columns: 1fr;
    }
}

/* ========================================
   Forms
   ======================================== */
.form-group {
    margin-bottom: 1.5rem;
}

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 500;
    font-size: 0.875rem;
    color: var(--color-text);
}

.form-group label .required {
    color: var(--color-error);
    margin-left: 0.25rem;
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 0.75rem 1rem;
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    font-size: 1rem;
    font-family: inherit;
    background: var(--color-surface);
    color: var(--color-text);
    transition: var(--transition);
}

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

.form-group input::placeholder,
.form-group textarea::placeholder {
    color: #94a3b8;
}

/* Form Validation */
.form-group.error input,
.form-group.error select,
.form-group.error textarea {
    border-color: var(--color-error);
    box-shadow: 0 0 0 3px rgba(239, 68, 68, 0.1);
}

.form-group.error label {
    color: var(--color-error);
}

.error-message {
    color: var(--color-error);
    font-size: 0.875rem;
    margin-top: 0.375rem;
    display: flex;
    align-items: center;
    gap: 0.375rem;
}

.error-message::before {
    content: '⚠️';
    font-size: 0.75rem;
}

.form-hint {
    color: var(--color-text-muted);
    font-size: 0.875rem;
    margin-top: 0.375rem;
}

.form-actions {
    margin-top: 2rem;
    display: flex;
    gap: 1rem;
    justify-content: flex-end;
}

.form-actions .btn {
    padding: 0.875rem 2rem;
}

/* ========================================
   Auth Page
   ======================================== */
.auth-page {
    min-height: calc(100vh - 4rem);
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 2rem;
    background: linear-gradient(135deg, var(--color-background) 0%, #e2e8f0 100%);
}

.auth-card {
    width: 100%;
    max-width: 440px;
    background: var(--color-surface);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-xl);
    overflow: hidden;
}

.auth-header {
    padding: 2rem 2rem 1rem;
    text-align: center;
}

.auth-header .logo {
    justify-content: center;
    margin-bottom: 1rem;
}

.auth-header h1 {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--color-text);
}

.auth-header p {
    color: var(--color-text-muted);
    font-size: 0.9375rem;
}

.auth-tabs {
    display: flex;
    padding: 0 2rem;
    gap: 0.5rem;
    border-bottom: 1px solid var(--color-border);
}

.tab-btn {
    flex: 1;
    padding: 1rem;
    border: none;
    background: transparent;
    cursor: pointer;
    border-radius: 0;
    font-weight: 600;
    font-size: 0.9375rem;
    color: var(--color-text-muted);
    position: relative;
    transition: color 0.2s;
}

.tab-btn::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 2px;
    background: var(--color-primary);
    transform: scaleX(0);
    transition: transform 0.2s;
}

.tab-btn:hover {
    color: var(--color-text);
}

.tab-btn.active {
    color: var(--color-primary);
}

.tab-btn.active::after {
    transform: scaleX(1);
}

.auth-form {
    padding: 2rem;
}

/* ========================================
   LK Page
   ======================================== */
.lk-page {
    padding: 2rem 0;
    min-height: calc(100vh - 4rem);
    background: var(--color-background);
}

.lk-page h1 {
    font-size: 1.75rem;
    font-weight: 700;
    margin-bottom: 1.5rem;
    color: var(--color-text);
}

.lk-grid {
    display: grid;
    grid-template-columns: 280px 1fr;
    gap: 1.5rem;
}

.lk-sidebar {
    background: var(--color-surface);
    padding: 1.5rem;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow);
    height: fit-content;
    position: sticky;
    top: 5rem;
}

.lk-nav {
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
}

.lk-nav a {
    padding: 0.875rem 1rem;
    border-radius: var(--radius);
    color: var(--color-text-muted);
    text-decoration: none;
    font-weight: 500;
    font-size: 0.9375rem;
    transition: var(--transition);
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.lk-nav a:hover,
.lk-nav a.active {
    background: #eff6ff;
    color: var(--color-primary);
}

.lk-nav a.active {
    font-weight: 600;
}

.lk-content {
    background: var(--color-surface);
    padding: 2rem;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow);
}

.lk-section h2 {
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: 1.5rem;
    color: var(--color-text);
}

/* Order Cards */
.order-card,
.subscription-card {
    background: var(--color-background);
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    padding: 1.25rem;
    margin-bottom: 1rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    transition: var(--transition);
}

.order-card:hover,
.subscription-card:hover {
    border-color: var(--color-primary-light);
    box-shadow: var(--shadow-sm);
}

.order-info h4 {
    margin-bottom: 0.25rem;
    font-weight: 600;
}

.order-info p {
    color: var(--color-text-muted);
    font-size: 0.875rem;
}

.status {
    display: inline-flex;
    align-items: center;
    gap: 0.375rem;
    padding: 0.375rem 0.75rem;
    border-radius: 9999px;
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.025em;
}

.status::before {
    content: '';
    width: 6px;
    height: 6px;
    border-radius: 50%;
}

.status-pending { background: #fef3c7; color: #92400e; }
.status-pending::before { background: #f59e0b; }

.status-paid { background: #dbeafe; color: #1e40af; }
.status-paid::before { background: #3b82f6; }

.status-generated { background: #d1fae5; color: #065f46; }
.status-generated::before { background: #10b981; }

.status-failed { background: #fee2e2; color: #991b1b; }
.status-failed::before { background: #ef4444; }

/* Subscription Options */
.subscription-options {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1.5rem;
}

.subscription-option {
    border: 2px solid var(--color-border);
    border-radius: var(--radius-lg);
    padding: 1.5rem;
    text-align: center;
    transition: var(--transition);
    cursor: pointer;
}

.subscription-option:hover {
    border-color: var(--color-primary-light);
}

.subscription-option.featured {
    border-color: var(--color-primary);
    background: #eff6ff;
}

.subscription-option .price {
    font-size: 2rem;
    color: var(--color-text);
    margin: 0.5rem 0;
}

.subscription-option .period {
    color: var(--color-text-muted);
    font-size: 0.875rem;
}

/* ========================================
   Footer
   ======================================== */
.footer {
    background: #0f172a;
    color: #94a3b8;
    padding: 3rem 0 2rem;
    margin-top: auto;
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: 3rem;
    margin-bottom: 2rem;
}

.footer-brand h3 {
    color: #fff;
    font-size: 1.25rem;
    margin-bottom: 0.75rem;
}

.footer-brand p {
    font-size: 0.9375rem;
    line-height: 1.6;
}

.footer-links h4 {
    color: #fff;
    font-size: 0.875rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: 1rem;
}

.footer-links ul {
    list-style: none;
}

.footer-links li {
    margin-bottom: 0.5rem;
}

.footer-links a {
    color: #94a3b8;
    text-decoration: none;
    font-size: 0.9375rem;
    transition: color 0.2s;
}

.footer-links a:hover {
    color: #fff;
}

.footer-bottom {
    border-top: 1px solid #1e293b;
    padding-top: 2rem;
    text-align: center;
    font-size: 0.875rem;
}

/* ========================================
   Utilities
   ======================================== */
.hidden {
    display: none !important;
}

.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;
}

.badge {
    display: inline-flex;
    align-items: center;
    padding: 0.25rem 0.625rem;
    border-radius: 9999px;
    font-size: 0.75rem;
    font-weight: 600;
}

.badge-primary {
    background: #eff6ff;
    color: var(--color-primary);
}

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

/* Alert Messages */
.alert {
    padding: 1rem 1.25rem;
    border-radius: var(--radius);
    margin-bottom: 1rem;
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.alert-success {
    background: #d1fae5;
    color: #065f46;
    border: 1px solid #a7f3d0;
}

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

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

/* ========================================
   Responsive
   ======================================== */
@media (max-width: 1024px) {
    .hero h1 {
        font-size: 2.5rem;
    }

    .lk-grid {
        grid-template-columns: 240px 1fr;
    }

    .footer-grid {
        grid-template-columns: 1fr 1fr;
    }
}

@media (max-width: 768px) {
    .header .container {
        height: 3.5rem;
    }

    .nav {
        display: none;
    }

    .hero {
        padding: 3rem 0 4rem;
    }

    .hero h1 {
        font-size: 2rem;
    }

    .hero p {
        font-size: 1rem;
    }

    .hero-cta {
        flex-direction: column;
    }

    .search-box {
        flex-direction: column;
        background: transparent;
        padding: 0;
        border: none;
    }

    .search-box input {
        width: 100%;
    }

    .categories-grid {
        grid-template-columns: 1fr;
    }

    .documents-grid {
        grid-template-columns: 1fr;
    }

    .lk-grid {
        grid-template-columns: 1fr;
    }

    .lk-sidebar {
        position: static;
    }

    .lk-nav {
        flex-direction: row;
        flex-wrap: wrap;
    }

    .form-actions {
        flex-direction: column-reverse;
    }

    .form-actions .btn {
        width: 100%;
    }

    .subscription-options {
        grid-template-columns: 1fr;
    }

    .footer-grid {
        grid-template-columns: 1fr;
        gap: 2rem;
    }

    .document-actions {
        flex-direction: column;
        gap: 1rem;
        align-items: stretch;
    }

    .order-card,
    .subscription-card {
        flex-direction: column;
        gap: 1rem;
        text-align: center;
    }
}

/* Mobile Menu Toggle */
.mobile-menu-toggle {
    display: none;
    background: none;
    border: none;
    font-size: 1.5rem;
    cursor: pointer;
    color: var(--color-text);
    padding: 0.5rem;
}

@media (max-width: 768px) {
    .mobile-menu-toggle {
        display: block;
    }
    
    .nav {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background: var(--color-surface);
        flex-direction: column;
        padding: 1rem;
        border-bottom: 1px solid var(--color-border);
        box-shadow: var(--shadow-lg);
    }
    
    .nav.mobile-open {
        display: flex;
    }
    
    .nav a {
        width: 100%;
        padding: 0.875rem;
        text-align: center;
    }
    
    .nav .btn {
        width: 100%;
        margin-top: 0.5rem;
    }
}