/**
 * Domain Sales Landingpage - Stylesheet
 * Professional & Corporate Design
 */

/* ==========================================================================
   CSS Variables
   ========================================================================== */

:root {
    /* Colors */
    --color-primary: #1a365d;
    --color-primary-light: #2c5282;
    --color-primary-dark: #0f2744;
    --color-secondary: #c9a227;
    --color-secondary-light: #d4b545;
    --color-secondary-dark: #a8861f;

    --color-bg: #f7f9fc;
    --color-bg-white: #ffffff;
    --color-bg-dark: #1a365d;

    --color-text: #2d3748;
    --color-text-light: #718096;
    --color-text-white: #ffffff;

    --color-border: #e2e8f0;
    --color-success: #38a169;
    --color-error: #e53e3e;

    /* Typography */
    --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, sans-serif;
    --font-size-xs: 0.75rem;
    --font-size-sm: 0.875rem;
    --font-size-base: 1rem;
    --font-size-lg: 1.125rem;
    --font-size-xl: 1.25rem;
    --font-size-2xl: 1.5rem;
    --font-size-3xl: 2rem;
    --font-size-4xl: 2.5rem;
    --font-size-5xl: 3.5rem;

    /* Spacing */
    --spacing-xs: 0.25rem;
    --spacing-sm: 0.5rem;
    --spacing-md: 1rem;
    --spacing-lg: 1.5rem;
    --spacing-xl: 2rem;
    --spacing-2xl: 3rem;
    --spacing-3xl: 4rem;

    /* Border Radius */
    --radius-sm: 0.25rem;
    --radius-md: 0.5rem;
    --radius-lg: 1rem;
    --radius-full: 9999px;

    /* Shadows */
    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 25px rgba(0, 0, 0, 0.15);
    --shadow-xl: 0 20px 40px rgba(0, 0, 0, 0.2);

    /* Transitions */
    --transition-fast: 150ms ease;
    --transition-normal: 250ms ease;
    --transition-slow: 350ms ease;

    /* Container */
    --container-max: 1200px;
    --container-padding: var(--spacing-lg);
}

/* ==========================================================================
   Reset & Base
   ========================================================================== */

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

html {
    font-size: 16px;
    scroll-behavior: smooth;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    font-family: var(--font-family);
    font-size: var(--font-size-base);
    line-height: 1.6;
    color: var(--color-text);
    background-color: var(--color-bg);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

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

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

img {
    max-width: 100%;
    height: auto;
}

/* ==========================================================================
   Container
   ========================================================================== */

.container {
    width: 100%;
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 var(--container-padding);
}

/* ==========================================================================
   Header
   ========================================================================== */

.header {
    background-color: var(--color-bg-white);
    border-bottom: 1px solid var(--color-border);
    position: sticky;
    top: 0;
    z-index: 100;
}

.header-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 70px;
}

.logo {
    display: flex;
    align-items: center;
}

.logo-text {
    font-size: var(--font-size-lg);
    font-weight: 600;
    color: var(--color-primary);
}

.language-switcher {
    display: flex;
    gap: var(--spacing-sm);
}

.lang-link {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-xs) var(--spacing-sm);
    font-size: var(--font-size-sm);
    font-weight: 500;
    color: var(--color-text-light);
    border-radius: var(--radius-sm);
    transition: all var(--transition-fast);
}

.lang-link:hover {
    color: var(--color-primary);
    background-color: var(--color-bg);
}

.lang-link.active {
    color: var(--color-primary);
    background-color: var(--color-bg);
    font-weight: 600;
}

/* ==========================================================================
   Hero Section
   ========================================================================== */

.hero {
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
    color: var(--color-text-white);
    padding: var(--spacing-3xl) 0;
    text-align: center;
}

.hero-content {
    max-width: 800px;
    margin: 0 auto;
}

.hero-badge {
    display: inline-block;
    padding: var(--spacing-xs) var(--spacing-md);
    background-color: var(--color-secondary);
    color: var(--color-primary-dark);
    font-size: var(--font-size-sm);
    font-weight: 600;
    border-radius: var(--radius-full);
    margin-bottom: var(--spacing-lg);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.hero-domain {
    font-size: var(--font-size-4xl);
    font-weight: 700;
    margin-bottom: var(--spacing-md);
    word-break: break-word;
}

@media (min-width: 768px) {
    .hero-domain {
        font-size: var(--font-size-5xl);
    }
}

.hero-subtitle {
    font-size: var(--font-size-xl);
    opacity: 0.9;
    margin-bottom: var(--spacing-lg);
}

.category-badge {
    display: inline-block;
    padding: var(--spacing-xs) var(--spacing-md);
    background-color: rgba(255, 255, 255, 0.15);
    border: 1px solid rgba(255, 255, 255, 0.3);
    border-radius: var(--radius-full);
    font-size: var(--font-size-sm);
    margin-bottom: var(--spacing-xl);
}

.hero-cta {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
    justify-content: center;
    margin-top: var(--spacing-xl);
}

@media (min-width: 640px) {
    .hero-cta {
        flex-direction: row;
    }
}

/* ==========================================================================
   Buttons
   ========================================================================== */

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-md) var(--spacing-xl);
    font-family: var(--font-family);
    font-size: var(--font-size-base);
    font-weight: 600;
    line-height: 1;
    text-align: center;
    border: 2px solid transparent;
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all var(--transition-fast);
    text-decoration: none;
}

.btn:disabled {
    opacity: 0.6;
    cursor: not-allowed;
}

.btn-primary {
    background-color: var(--color-secondary);
    color: var(--color-primary-dark);
    border-color: var(--color-secondary);
}

.btn-primary:hover {
    background-color: var(--color-secondary-light);
    border-color: var(--color-secondary-light);
    color: var(--color-primary-dark);
}

.btn-secondary {
    background-color: transparent;
    color: var(--color-text-white);
    border-color: var(--color-text-white);
}

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

.btn-large {
    padding: var(--spacing-lg) var(--spacing-2xl);
    font-size: var(--font-size-lg);
}

.btn-block {
    width: 100%;
}

.btn-loading {
    display: none;
}

.btn.loading .btn-text {
    display: none;
}

.btn.loading .btn-loading {
    display: inline;
}

/* ==========================================================================
   Info Section
   ========================================================================== */

.info-section {
    padding: var(--spacing-3xl) 0;
    background-color: var(--color-bg-white);
}

.section-title {
    font-size: var(--font-size-2xl);
    font-weight: 700;
    color: var(--color-primary);
    margin-bottom: var(--spacing-xl);
    text-align: center;
}

.description {
    max-width: 800px;
    margin: 0 auto var(--spacing-xl);
    text-align: center;
    font-size: var(--font-size-lg);
    color: var(--color-text);
    line-height: 1.8;
}

.keywords {
    text-align: center;
}

.keywords h3 {
    font-size: var(--font-size-base);
    font-weight: 600;
    color: var(--color-text-light);
    margin-bottom: var(--spacing-md);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.keyword-tags {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: var(--spacing-sm);
}

.keyword-tag {
    display: inline-block;
    padding: var(--spacing-xs) var(--spacing-md);
    background-color: var(--color-bg);
    color: var(--color-text);
    font-size: var(--font-size-sm);
    border-radius: var(--radius-full);
    border: 1px solid var(--color-border);
}

/* ==========================================================================
   Trust Section
   ========================================================================== */

.trust-section {
    padding: var(--spacing-3xl) 0;
    background-color: var(--color-bg);
}

.trust-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-xl);
}

@media (min-width: 768px) {
    .trust-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

.trust-item {
    text-align: center;
    padding: var(--spacing-xl);
    background-color: var(--color-bg-white);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
}

.trust-icon {
    color: var(--color-primary);
    margin-bottom: var(--spacing-md);
}

.trust-item h3 {
    font-size: var(--font-size-lg);
    font-weight: 600;
    color: var(--color-primary);
    margin-bottom: var(--spacing-sm);
}

.trust-item p {
    font-size: var(--font-size-sm);
    color: var(--color-text-light);
}

/* ==========================================================================
   CTA Section
   ========================================================================== */

.cta-section {
    padding: var(--spacing-3xl) 0;
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
    color: var(--color-text-white);
    text-align: center;
}

.cta-content h2 {
    font-size: var(--font-size-2xl);
    font-weight: 700;
    margin-bottom: var(--spacing-xl);
}

.cta-buttons {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
    justify-content: center;
}

@media (min-width: 640px) {
    .cta-buttons {
        flex-direction: row;
    }
}

/* ==========================================================================
   Footer
   ========================================================================== */

.footer {
    margin-top: auto;
    padding: var(--spacing-xl) 0;
    background-color: var(--color-primary-dark);
    color: var(--color-text-white);
}

.footer-content {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--spacing-md);
}

@media (min-width: 640px) {
    .footer-content {
        flex-direction: row;
        justify-content: space-between;
    }
}

.footer-links {
    display: flex;
    gap: var(--spacing-lg);
}

.footer-links a {
    color: rgba(255, 255, 255, 0.8);
    font-size: var(--font-size-sm);
    transition: color var(--transition-fast);
}

.footer-links a:hover {
    color: var(--color-text-white);
}

.footer-copyright {
    font-size: var(--font-size-sm);
    color: rgba(255, 255, 255, 0.6);
}

.footer-minimal {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
}

/* ==========================================================================
   Modal
   ========================================================================== */

.modal {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: 1000;
    display: none;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-md);
}

.modal.active {
    display: flex;
}

.modal-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: rgba(0, 0, 0, 0.6);
    backdrop-filter: blur(4px);
}

.modal-content {
    position: relative;
    background-color: var(--color-bg-white);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-xl);
    max-width: 500px;
    width: 100%;
    max-height: 90vh;
    overflow-y: auto;
    animation: modalIn 0.3s ease;
}

@keyframes modalIn {
    from {
        opacity: 0;
        transform: scale(0.95) translateY(-20px);
    }
    to {
        opacity: 1;
        transform: scale(1) translateY(0);
    }
}

.modal-close {
    position: absolute;
    top: var(--spacing-md);
    right: var(--spacing-md);
    width: 36px;
    height: 36px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: none;
    border: none;
    font-size: var(--font-size-2xl);
    color: var(--color-text-light);
    cursor: pointer;
    border-radius: var(--radius-full);
    transition: all var(--transition-fast);
}

.modal-close:hover {
    background-color: var(--color-bg);
    color: var(--color-text);
}

/* ==========================================================================
   Forms
   ========================================================================== */

.form-container {
    padding: var(--spacing-xl);
}

.form-title {
    font-size: var(--font-size-xl);
    font-weight: 700;
    color: var(--color-primary);
    margin-bottom: var(--spacing-sm);
}

.form-subtitle {
    font-size: var(--font-size-sm);
    color: var(--color-text-light);
    margin-bottom: var(--spacing-xl);
}

.form-group {
    margin-bottom: var(--spacing-lg);
}

.form-group label {
    display: block;
    font-size: var(--font-size-sm);
    font-weight: 500;
    color: var(--color-text);
    margin-bottom: var(--spacing-xs);
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: var(--spacing-md);
    font-family: var(--font-family);
    font-size: var(--font-size-base);
    color: var(--color-text);
    background-color: var(--color-bg);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    transition: all var(--transition-fast);
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px rgba(26, 54, 93, 0.1);
}

.form-group input.error,
.form-group textarea.error {
    border-color: var(--color-error);
}

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

.input-group {
    display: flex;
    align-items: stretch;
}

.input-prefix {
    display: flex;
    align-items: center;
    padding: 0 var(--spacing-md);
    background-color: var(--color-border);
    border: 1px solid var(--color-border);
    border-right: none;
    border-radius: var(--radius-md) 0 0 var(--radius-md);
    font-size: var(--font-size-sm);
    font-weight: 500;
    color: var(--color-text-light);
}

.input-group input {
    border-radius: 0 var(--radius-md) var(--radius-md) 0;
}

.form-error {
    display: block;
    font-size: var(--font-size-xs);
    color: var(--color-error);
    margin-top: var(--spacing-xs);
}

.form-actions {
    margin-top: var(--spacing-xl);
}

.form-message {
    margin-top: var(--spacing-lg);
    padding: var(--spacing-md);
    border-radius: var(--radius-md);
    font-size: var(--font-size-sm);
    text-align: center;
    display: none;
}

.form-message.success {
    display: block;
    background-color: rgba(56, 161, 105, 0.1);
    color: var(--color-success);
    border: 1px solid var(--color-success);
}

.form-message.error {
    display: block;
    background-color: rgba(229, 62, 62, 0.1);
    color: var(--color-error);
    border: 1px solid var(--color-error);
}

/* Honeypot */
.hp-field {
    position: absolute;
    left: -9999px;
    opacity: 0;
    height: 0;
}

/* ==========================================================================
   Error Page (404)
   ========================================================================== */

.error-page {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--color-bg) 0%, var(--color-bg-white) 100%);
}

.error-container {
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-xl);
}

.error-content {
    text-align: center;
    max-width: 500px;
}

.error-icon {
    color: var(--color-text-light);
    margin-bottom: var(--spacing-xl);
}

.error-title {
    font-size: var(--font-size-3xl);
    font-weight: 700;
    color: var(--color-primary);
    margin-bottom: var(--spacing-md);
}

.error-message {
    font-size: var(--font-size-lg);
    color: var(--color-text-light);
    margin-bottom: var(--spacing-xl);
}

.error-domain {
    padding: var(--spacing-md) var(--spacing-xl);
    background-color: var(--color-bg);
    border-radius: var(--radius-md);
    margin-bottom: var(--spacing-xl);
}

.error-domain code {
    font-size: var(--font-size-lg);
    color: var(--color-text);
}

.language-switcher-404 {
    display: flex;
    gap: var(--spacing-md);
    justify-content: center;
}

.language-switcher-404 .lang-link {
    padding: var(--spacing-sm) var(--spacing-md);
    background-color: var(--color-bg);
    border-radius: var(--radius-md);
}

/* ==========================================================================
   Admin Styles
   ========================================================================== */

.admin-layout {
    display: flex;
    min-height: 100vh;
}

.admin-sidebar {
    width: 250px;
    background-color: var(--color-primary-dark);
    color: var(--color-text-white);
    padding: var(--spacing-lg);
    flex-shrink: 0;
}

.admin-sidebar h2 {
    font-size: var(--font-size-lg);
    font-weight: 600;
    margin-bottom: var(--spacing-xl);
    padding-bottom: var(--spacing-md);
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.admin-nav {
    list-style: none;
}

.admin-nav li {
    margin-bottom: var(--spacing-sm);
}

.admin-nav a {
    display: block;
    padding: var(--spacing-sm) var(--spacing-md);
    color: rgba(255, 255, 255, 0.8);
    border-radius: var(--radius-md);
    transition: all var(--transition-fast);
}

.admin-nav a:hover,
.admin-nav a.active {
    background-color: rgba(255, 255, 255, 0.1);
    color: var(--color-text-white);
}

.admin-main {
    flex: 1;
    padding: var(--spacing-xl);
    background-color: var(--color-bg);
}

.admin-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--spacing-xl);
}

.admin-header h1 {
    font-size: var(--font-size-2xl);
    font-weight: 700;
    color: var(--color-primary);
}

/* Admin Table */
.admin-table {
    width: 100%;
    background-color: var(--color-bg-white);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
    overflow: hidden;
}

.admin-table table {
    width: 100%;
    border-collapse: collapse;
}

.admin-table th,
.admin-table td {
    padding: var(--spacing-md);
    text-align: left;
    border-bottom: 1px solid var(--color-border);
}

.admin-table th {
    font-weight: 600;
    color: var(--color-text-light);
    font-size: var(--font-size-sm);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    background-color: var(--color-bg);
}

.admin-table tr:hover td {
    background-color: var(--color-bg);
}

.admin-table .actions {
    display: flex;
    gap: var(--spacing-sm);
}

/* Admin Cards */
.admin-cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-xl);
}

.admin-card {
    background-color: var(--color-bg-white);
    padding: var(--spacing-xl);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
}

.admin-card h3 {
    font-size: var(--font-size-sm);
    font-weight: 500;
    color: var(--color-text-light);
    margin-bottom: var(--spacing-sm);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.admin-card .value {
    font-size: var(--font-size-3xl);
    font-weight: 700;
    color: var(--color-primary);
}

/* Status Badges */
.badge {
    display: inline-block;
    padding: var(--spacing-xs) var(--spacing-sm);
    font-size: var(--font-size-xs);
    font-weight: 600;
    border-radius: var(--radius-full);
    text-transform: uppercase;
}

.badge-success {
    background-color: rgba(56, 161, 105, 0.1);
    color: var(--color-success);
}

.badge-warning {
    background-color: rgba(201, 162, 39, 0.1);
    color: var(--color-secondary-dark);
}

.badge-error {
    background-color: rgba(229, 62, 62, 0.1);
    color: var(--color-error);
}

.badge-info {
    background-color: rgba(26, 54, 93, 0.1);
    color: var(--color-primary);
}

/* Pagination */
.pagination {
    display: flex;
    justify-content: center;
    gap: var(--spacing-sm);
    margin-top: var(--spacing-xl);
}

.pagination a,
.pagination span {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 36px;
    height: 36px;
    padding: 0 var(--spacing-sm);
    background-color: var(--color-bg-white);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    font-size: var(--font-size-sm);
    color: var(--color-text);
    transition: all var(--transition-fast);
}

.pagination a:hover {
    background-color: var(--color-bg);
    color: var(--color-primary);
}

.pagination span.current {
    background-color: var(--color-primary);
    border-color: var(--color-primary);
    color: var(--color-text-white);
}

/* Alerts */
.alert {
    padding: var(--spacing-md) var(--spacing-lg);
    border-radius: var(--radius-md);
    margin-bottom: var(--spacing-lg);
    font-size: var(--font-size-sm);
}

.alert-success {
    background-color: rgba(56, 161, 105, 0.1);
    color: var(--color-success);
    border: 1px solid var(--color-success);
}

.alert-error {
    background-color: rgba(229, 62, 62, 0.1);
    color: var(--color-error);
    border: 1px solid var(--color-error);
}

.alert-info {
    background-color: rgba(26, 54, 93, 0.1);
    color: var(--color-primary);
    border: 1px solid var(--color-primary);
}

/* ==========================================================================
   Utilities
   ========================================================================== */

.text-center { text-align: center; }
.text-right { text-align: right; }
.text-muted { color: var(--color-text-light); }
.text-small { font-size: var(--font-size-sm); }

.mt-md { margin-top: var(--spacing-md); }
.mt-lg { margin-top: var(--spacing-lg); }
.mb-md { margin-bottom: var(--spacing-md); }
.mb-lg { margin-bottom: var(--spacing-lg); }

.hidden { display: none !important; }

/* ==========================================================================
   Responsive
   ========================================================================== */

@media (max-width: 768px) {
    .admin-layout {
        flex-direction: column;
    }

    .admin-sidebar {
        width: 100%;
        padding: var(--spacing-md);
    }

    .admin-nav {
        display: flex;
        flex-wrap: wrap;
        gap: var(--spacing-sm);
    }

    .admin-nav li {
        margin-bottom: 0;
    }

    .admin-table {
        overflow-x: auto;
    }

    .admin-table table {
        min-width: 600px;
    }
}

/* FAQ Section */
.faq-section {
    padding: var(--spacing-3xl) 0;
    background: var(--color-bg);
}

.faq-list {
    max-width: 760px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.faq-item {
    background: var(--color-bg-white);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-sm);
    overflow: hidden;
}

.faq-question {
    width: 100%;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-lg) var(--spacing-xl);
    background: none;
    border: none;
    cursor: pointer;
    font-size: var(--font-size-base);
    font-weight: 600;
    color: var(--color-text);
    text-align: left;
    gap: var(--spacing-md);
}

.faq-question:hover {
    color: var(--color-primary);
}

.faq-icon {
    font-size: 1.4rem;
    font-weight: 300;
    color: var(--color-primary);
    flex-shrink: 0;
    transition: transform 0.2s ease;
}

.faq-item.open .faq-icon {
    transform: rotate(45deg);
}

.faq-answer {
    display: none;
    padding: 0 var(--spacing-xl) var(--spacing-lg);
    color: var(--color-text-light);
    line-height: 1.7;
}

.faq-item.open .faq-answer {
    display: block;
}