/* ========================================
   Global Brain Corporation - Main Styles
   ======================================== */

/* CSS Variables */
:root {
    --primary-color: #1e40af;
    --primary-dark: #1e3a8a;
    --primary-light: #3b82f6;
    --secondary-color: #60a5fa;
    --accent-color: #dbeafe;
    --text-color: #1f2937;
    --text-light: #6b7280;
    --background-color: #ffffff;
    --background-alt: #f8fafc;
    --border-color: #e5e7eb;
    --success-color: #10b981;
    --error-color: #ef4444;
    --shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    --transition: all 0.3s ease;
    --max-width: 1200px;
    --header-height: 80px;
}

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

html {
    scroll-behavior: smooth;
    font-size: 16px;
}

body {
    font-family: 'Hiragino Kaku Gothic ProN', 'Hiragino Sans', 'Yu Gothic', 'Meiryo', sans-serif;
    line-height: 1.6;
    color: var(--text-color);
    background-color: var(--background-color);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

main {
    flex: 1;
}

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

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

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

ul, ol {
    list-style: none;
}

button {
    cursor: pointer;
    font-family: inherit;
    border: none;
    background: none;
}

input, textarea, select {
    font-family: inherit;
    font-size: inherit;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
    font-weight: 700;
    line-height: 1.3;
    color: var(--text-color);
}

h1 {
    font-size: 2.5rem;
}

h2 {
    font-size: 2rem;
}

h3 {
    font-size: 1.5rem;
}

h4 {
    font-size: 1.25rem;
}

p {
    margin-bottom: 1rem;
}

/* Container */
.container {
    width: 100%;
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 1.5rem;
}

/* ========================================
   Header Styles
   ======================================== */
.header {
    background-color: var(--background-color);
    box-shadow: var(--shadow);
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    height: var(--header-height);
}

.header-container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 100%;
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 1.5rem;
}

.logo {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary-color);
}

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

.logo-icon {
    width: 40px;
    height: 40px;
    background: linear-gradient(135deg, var(--primary-color), var(--primary-light));
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-weight: 700;
    font-size: 1.2rem;
}

/* Navigation */
.nav {
    display: flex;
    align-items: center;
}

.nav-list {
    display: flex;
    gap: 2rem;
}

.nav-link {
    font-weight: 500;
    color: var(--text-color);
    padding: 0.5rem 0;
    position: relative;
}

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

.nav-link:hover::after,
.nav-link.active::after {
    width: 100%;
}

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

/* Mobile Menu Toggle */
.mobile-menu-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    padding: 0.5rem;
}

.mobile-menu-toggle span {
    display: block;
    width: 25px;
    height: 3px;
    background-color: var(--text-color);
    border-radius: 2px;
    transition: var(--transition);
}

/* ========================================
   Hero Section
   ======================================== */
.hero {
    padding: calc(var(--header-height) + 4rem) 0 4rem;
    background: linear-gradient(135deg, var(--accent-color) 0%, var(--background-color) 100%);
    min-height: 80vh;
    display: flex;
    align-items: center;
}

.hero-container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
}

.hero-content {
    max-width: 600px;
}

.hero-badge {
    display: inline-block;
    background-color: var(--primary-color);
    color: white;
    padding: 0.5rem 1rem;
    border-radius: 50px;
    font-size: 0.875rem;
    font-weight: 500;
    margin-bottom: 1.5rem;
}

.hero-title {
    font-size: 3rem;
    color: var(--primary-dark);
    margin-bottom: 1.5rem;
    line-height: 1.2;
}

.hero-subtitle {
    font-size: 1.25rem;
    color: var(--text-light);
    margin-bottom: 2rem;
}

.hero-description {
    font-size: 1.1rem;
    color: var(--text-color);
    margin-bottom: 2rem;
}

.hero-buttons {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
}

.hero-image {
    display: flex;
    justify-content: center;
    align-items: center;
}

.hero-image img {
    border-radius: 1rem;
    box-shadow: var(--shadow-lg);
}

/* ========================================
   Buttons
   ======================================== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 0.875rem 1.75rem;
    font-size: 1rem;
    font-weight: 600;
    border-radius: 8px;
    transition: var(--transition);
    text-align: center;
}

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

.btn-primary:hover {
    background-color: var(--primary-dark);
    color: white;
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

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

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

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

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

/* ========================================
   Section Styles
   ======================================== */
.section {
    padding: 5rem 0;
}

.section-alt {
    background-color: var(--background-alt);
}

.section-header {
    text-align: center;
    max-width: 800px;
    margin: 0 auto 3rem;
}

.section-title {
    color: var(--primary-dark);
    margin-bottom: 1rem;
}

.section-subtitle {
    color: var(--text-light);
    font-size: 1.1rem;
}

/* ========================================
   Features / Services Grid
   ======================================== */
.features-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
}

.feature-card {
    background-color: var(--background-color);
    border-radius: 1rem;
    padding: 2rem;
    box-shadow: var(--shadow);
    transition: var(--transition);
}

.feature-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
}

.feature-icon {
    width: 60px;
    height: 60px;
    background: linear-gradient(135deg, var(--primary-color), var(--primary-light));
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 1.5rem;
    color: white;
    font-size: 1.5rem;
}

.feature-title {
    font-size: 1.25rem;
    margin-bottom: 0.75rem;
    color: var(--primary-dark);
}

.feature-description {
    color: var(--text-light);
    margin-bottom: 0;
}

/* ========================================
   About Section
   ======================================== */
.about-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
}

.about-image img {
    border-radius: 1rem;
    box-shadow: var(--shadow-lg);
}

.about-content h2 {
    color: var(--primary-dark);
    margin-bottom: 1.5rem;
}

.about-content p {
    color: var(--text-light);
    margin-bottom: 1.5rem;
}

/* Values List */
.values-list {
    margin-top: 2rem;
}

.value-item {
    display: flex;
    align-items: flex-start;
    gap: 1rem;
    margin-bottom: 1.5rem;
}

.value-icon {
    width: 40px;
    height: 40px;
    background-color: var(--accent-color);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--primary-color);
    flex-shrink: 0;
}

.value-content h4 {
    color: var(--primary-dark);
    margin-bottom: 0.25rem;
}

.value-content p {
    color: var(--text-light);
    margin-bottom: 0;
    font-size: 0.95rem;
}

/* ========================================
   Lead Form Section
   ======================================== */
.lead-form-section {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-dark) 100%);
    padding: 5rem 0;
}

.lead-form-container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
}

.lead-form-content {
    color: white;
}

.lead-form-content h2 {
    color: white;
    margin-bottom: 1.5rem;
}

.lead-form-content p {
    opacity: 0.9;
    margin-bottom: 1.5rem;
}

.lead-form {
    background-color: white;
    border-radius: 1rem;
    padding: 2.5rem;
    box-shadow: var(--shadow-lg);
}

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

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

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

.form-input,
.form-textarea,
.form-select {
    width: 100%;
    padding: 0.875rem 1rem;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    font-size: 1rem;
    transition: var(--transition);
    background-color: var(--background-color);
}

.form-input:focus,
.form-textarea:focus,
.form-select:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(30, 64, 175, 0.1);
}

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

.form-checkbox {
    display: flex;
    align-items: flex-start;
    gap: 0.75rem;
}

.form-checkbox input[type="checkbox"] {
    width: 20px;
    height: 20px;
    margin-top: 2px;
    accent-color: var(--primary-color);
}

.form-checkbox label {
    font-size: 0.9rem;
    color: var(--text-light);
    line-height: 1.5;
}

.form-checkbox a {
    color: var(--primary-color);
    text-decoration: underline;
}

.form-submit {
    width: 100%;
    margin-top: 1rem;
}

.form-success {
    background-color: #d1fae5;
    color: #065f46;
    padding: 1rem;
    border-radius: 8px;
    text-align: center;
    margin-top: 1rem;
}

.form-error {
    background-color: #fee2e2;
    color: #991b1b;
    padding: 1rem;
    border-radius: 8px;
    text-align: center;
    margin-top: 1rem;
}

/* ========================================
   Services Page
   ======================================== */
.services-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 2rem;
}

.service-card {
    background-color: var(--background-color);
    border-radius: 1rem;
    overflow: hidden;
    box-shadow: var(--shadow);
    transition: var(--transition);
}

.service-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
}

.service-image {
    height: 200px;
    overflow: hidden;
}

.service-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: var(--transition);
}

.service-card:hover .service-image img {
    transform: scale(1.05);
}

.service-content {
    padding: 1.5rem;
}

.service-title {
    color: var(--primary-dark);
    margin-bottom: 0.75rem;
}

.service-description {
    color: var(--text-light);
    margin-bottom: 0;
}

/* Portfolio / Examples */
.portfolio-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
}

.portfolio-item {
    background-color: var(--background-color);
    border-radius: 1rem;
    overflow: hidden;
    box-shadow: var(--shadow);
}

.portfolio-image {
    height: 180px;
    overflow: hidden;
}

.portfolio-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.portfolio-content {
    padding: 1.25rem;
}

.portfolio-title {
    font-size: 1.1rem;
    color: var(--primary-dark);
    margin-bottom: 0.5rem;
}

.portfolio-category {
    font-size: 0.875rem;
    color: var(--text-light);
}

/* ========================================
   Business Model Page
   ======================================== */
.business-model-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 3rem;
}

.model-card {
    background-color: var(--background-color);
    border-radius: 1rem;
    padding: 2rem;
    box-shadow: var(--shadow);
}

.model-card h3 {
    color: var(--primary-dark);
    margin-bottom: 1rem;
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.model-card-icon {
    width: 40px;
    height: 40px;
    background: linear-gradient(135deg, var(--primary-color), var(--primary-light));
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
}

.model-card p {
    color: var(--text-light);
    margin-bottom: 0;
}

.model-card ul {
    margin-top: 1rem;
}

.model-card li {
    padding: 0.5rem 0;
    padding-left: 1.5rem;
    position: relative;
    color: var(--text-light);
}

.model-card li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: var(--success-color);
    font-weight: bold;
}

/* ========================================
   Contact Page
   ======================================== */
.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
}

.contact-info {
    padding: 2rem;
}

.contact-info h2 {
    color: var(--primary-dark);
    margin-bottom: 2rem;
}

.contact-item {
    display: flex;
    align-items: flex-start;
    gap: 1rem;
    margin-bottom: 1.5rem;
}

.contact-icon {
    width: 50px;
    height: 50px;
    background-color: var(--accent-color);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--primary-color);
    flex-shrink: 0;
    font-size: 1.25rem;
}

.contact-details h4 {
    color: var(--primary-dark);
    margin-bottom: 0.25rem;
}

.contact-details p {
    color: var(--text-light);
    margin-bottom: 0;
}

.contact-details a {
    color: var(--primary-color);
}

/* Business Hours */
.business-hours {
    margin-top: 2rem;
    padding-top: 2rem;
    border-top: 1px solid var(--border-color);
}

.business-hours h4 {
    color: var(--primary-dark);
    margin-bottom: 1rem;
}

.hours-list li {
    display: flex;
    justify-content: space-between;
    padding: 0.5rem 0;
    color: var(--text-light);
    border-bottom: 1px solid var(--border-color);
}

.hours-list li:last-child {
    border-bottom: none;
}

/* Map */
.map-container {
    border-radius: 1rem;
    overflow: hidden;
    box-shadow: var(--shadow);
    height: 400px;
}

.map-container iframe {
    width: 100%;
    height: 100%;
    border: none;
}

/* Contact Form */
.contact-form-container {
    background-color: var(--background-color);
    border-radius: 1rem;
    padding: 2.5rem;
    box-shadow: var(--shadow);
}

.contact-form-container h2 {
    color: var(--primary-dark);
    margin-bottom: 1.5rem;
}

/* ========================================
   Legal Pages (Privacy, Terms, etc.)
   ======================================== */
.legal-content {
    max-width: 900px;
    margin: 0 auto;
    padding: calc(var(--header-height) + 3rem) 1.5rem 3rem;
}

.legal-content h1 {
    color: var(--primary-dark);
    margin-bottom: 1rem;
}

.legal-meta {
    color: var(--text-light);
    font-size: 0.9rem;
    margin-bottom: 2rem;
    padding-bottom: 1rem;
    border-bottom: 1px solid var(--border-color);
}

.legal-content h2 {
    color: var(--primary-dark);
    font-size: 1.5rem;
    margin-top: 2.5rem;
    margin-bottom: 1rem;
}

.legal-content h3 {
    color: var(--text-color);
    font-size: 1.25rem;
    margin-top: 2rem;
    margin-bottom: 0.75rem;
}

.legal-content p {
    color: var(--text-light);
    margin-bottom: 1rem;
}

.legal-content ul,
.legal-content ol {
    margin-bottom: 1rem;
    padding-left: 1.5rem;
}

.legal-content li {
    color: var(--text-light);
    margin-bottom: 0.5rem;
    list-style: disc;
}

.legal-content ol li {
    list-style: decimal;
}

.legal-content a {
    color: var(--primary-color);
    text-decoration: underline;
}

/* ========================================
   Cookie Consent Banner
   ======================================== */
.cookie-banner {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    background-color: var(--background-color);
    box-shadow: 0 -4px 20px rgba(0, 0, 0, 0.15);
    z-index: 9999;
    padding: 1.5rem;
    transform: translateY(100%);
    transition: transform 0.4s ease;
}

.cookie-banner.show {
    transform: translateY(0);
}

.cookie-banner-container {
    max-width: var(--max-width);
    margin: 0 auto;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 2rem;
}

.cookie-content {
    flex: 1;
}

.cookie-content h3 {
    font-size: 1.1rem;
    color: var(--primary-dark);
    margin-bottom: 0.5rem;
}

.cookie-content p {
    color: var(--text-light);
    margin-bottom: 0;
    font-size: 0.9rem;
}

.cookie-content a {
    color: var(--primary-color);
    text-decoration: underline;
}

.cookie-buttons {
    display: flex;
    gap: 0.75rem;
    flex-shrink: 0;
}

.cookie-buttons .btn {
    padding: 0.75rem 1.25rem;
    font-size: 0.9rem;
}

/* Cookie Settings Modal */
.cookie-modal {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: rgba(0, 0, 0, 0.5);
    z-index: 10000;
    display: none;
    align-items: center;
    justify-content: center;
    padding: 1rem;
}

.cookie-modal.show {
    display: flex;
}

.cookie-modal-content {
    background-color: var(--background-color);
    border-radius: 1rem;
    max-width: 600px;
    width: 100%;
    max-height: 90vh;
    overflow-y: auto;
    box-shadow: var(--shadow-lg);
}

.cookie-modal-header {
    padding: 1.5rem;
    border-bottom: 1px solid var(--border-color);
}

.cookie-modal-header h3 {
    color: var(--primary-dark);
    margin-bottom: 0;
}

.cookie-modal-body {
    padding: 1.5rem;
}

.cookie-category {
    margin-bottom: 1.5rem;
    padding-bottom: 1.5rem;
    border-bottom: 1px solid var(--border-color);
}

.cookie-category:last-child {
    margin-bottom: 0;
    padding-bottom: 0;
    border-bottom: none;
}

.cookie-category-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 0.75rem;
}

.cookie-category-header h4 {
    color: var(--primary-dark);
    margin-bottom: 0;
}

.cookie-category p {
    color: var(--text-light);
    font-size: 0.9rem;
    margin-bottom: 0;
}

/* Toggle Switch */
.toggle-switch {
    position: relative;
    width: 50px;
    height: 26px;
}

.toggle-switch input {
    opacity: 0;
    width: 0;
    height: 0;
}

.toggle-slider {
    position: absolute;
    cursor: pointer;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: var(--border-color);
    transition: var(--transition);
    border-radius: 26px;
}

.toggle-slider::before {
    position: absolute;
    content: "";
    height: 20px;
    width: 20px;
    left: 3px;
    bottom: 3px;
    background-color: white;
    transition: var(--transition);
    border-radius: 50%;
}

.toggle-switch input:checked + .toggle-slider {
    background-color: var(--primary-color);
}

.toggle-switch input:checked + .toggle-slider::before {
    transform: translateX(24px);
}

.toggle-switch input:disabled + .toggle-slider {
    opacity: 0.6;
    cursor: not-allowed;
}

.cookie-modal-footer {
    padding: 1.5rem;
    border-top: 1px solid var(--border-color);
    display: flex;
    gap: 1rem;
    justify-content: flex-end;
}

/* ========================================
   Footer
   ======================================== */
.footer {
    background-color: var(--primary-dark);
    color: white;
    padding: 4rem 0 0;
}

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

.footer-brand {
    max-width: 300px;
}

.footer-logo {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 1.5rem;
    font-weight: 700;
    color: white;
    margin-bottom: 1rem;
}

.footer-logo-icon {
    width: 40px;
    height: 40px;
    background: linear-gradient(135deg, var(--primary-light), white);
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--primary-dark);
    font-weight: 700;
    font-size: 1.2rem;
}

.footer-brand p {
    color: rgba(255, 255, 255, 0.8);
    font-size: 0.95rem;
}

.footer-title {
    font-size: 1.1rem;
    font-weight: 600;
    margin-bottom: 1.5rem;
    color: white;
}

.footer-links li {
    margin-bottom: 0.75rem;
}

.footer-links a {
    color: rgba(255, 255, 255, 0.8);
    font-size: 0.95rem;
    transition: var(--transition);
}

.footer-links a:hover {
    color: white;
}

.footer-contact p {
    color: rgba(255, 255, 255, 0.8);
    font-size: 0.95rem;
    margin-bottom: 0.75rem;
}

.footer-contact a {
    color: rgba(255, 255, 255, 0.8);
}

.footer-contact a:hover {
    color: white;
}

/* Footer Bottom */
.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding: 1.5rem 0;
}

.footer-bottom-container {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.footer-disclaimer {
    color: rgba(255, 255, 255, 0.7);
    font-size: 0.85rem;
    text-align: center;
    padding: 1rem;
    background-color: rgba(255, 255, 255, 0.05);
    border-radius: 8px;
    margin-bottom: 0.5rem;
}

.footer-copyright {
    color: rgba(255, 255, 255, 0.7);
    font-size: 0.9rem;
    text-align: center;
}

.footer-legal-links {
    display: flex;
    justify-content: center;
    gap: 2rem;
    flex-wrap: wrap;
}

.footer-legal-links a {
    color: rgba(255, 255, 255, 0.7);
    font-size: 0.9rem;
}

.footer-legal-links a:hover {
    color: white;
}

/* ========================================
   Page Header (for inner pages)
   ======================================== */
.page-header {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-dark) 100%);
    padding: calc(var(--header-height) + 3rem) 0 3rem;
    color: white;
    text-align: center;
}

.page-header h1 {
    color: white;
    margin-bottom: 0.5rem;
}

.page-header p {
    color: rgba(255, 255, 255, 0.9);
    font-size: 1.1rem;
    margin-bottom: 0;
}

/* Breadcrumb */
.breadcrumb {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    margin-bottom: 1rem;
    font-size: 0.9rem;
}

.breadcrumb a {
    color: rgba(255, 255, 255, 0.8);
}

.breadcrumb a:hover {
    color: white;
}

.breadcrumb span {
    color: rgba(255, 255, 255, 0.6);
}

/* ========================================
   Accessibility
   ======================================== */
.skip-link {
    position: absolute;
    top: -40px;
    left: 0;
    background: var(--primary-color);
    color: white;
    padding: 8px 16px;
    z-index: 10000;
    transition: top 0.3s;
}

.skip-link:focus {
    top: 0;
}

/* Focus styles */
a:focus,
button:focus,
input:focus,
textarea:focus,
select:focus {
    outline: 2px solid var(--primary-color);
    outline-offset: 2px;
}

/* Screen reader only */
.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;
}

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

/* Tablet */
@media (max-width: 1024px) {
    h1 {
        font-size: 2rem;
    }
    
    h2 {
        font-size: 1.75rem;
    }
    
    .hero-title {
        font-size: 2.5rem;
    }
    
    .hero-container {
        grid-template-columns: 1fr;
        gap: 2rem;
        text-align: center;
    }
    
    .hero-content {
        max-width: 100%;
    }
    
    .hero-buttons {
        justify-content: center;
    }
    
    .features-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .about-grid,
    .lead-form-container,
    .contact-grid {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
    
    .services-grid {
        grid-template-columns: 1fr;
    }
    
    .portfolio-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .business-model-grid {
        grid-template-columns: 1fr;
    }
    
    .footer-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

/* Mobile */
@media (max-width: 768px) {
    :root {
        --header-height: 70px;
    }
    
    h1 {
        font-size: 1.75rem;
    }
    
    h2 {
        font-size: 1.5rem;
    }
    
    .section {
        padding: 3rem 0;
    }
    
    /* Mobile Navigation */
    .nav {
        position: fixed;
        top: var(--header-height);
        left: 0;
        right: 0;
        background-color: var(--background-color);
        box-shadow: var(--shadow);
        transform: translateY(-100%);
        opacity: 0;
        visibility: hidden;
        transition: var(--transition);
    }
    
    .nav.active {
        transform: translateY(0);
        opacity: 1;
        visibility: visible;
    }
    
    .nav-list {
        flex-direction: column;
        padding: 1.5rem;
        gap: 0;
    }
    
    .nav-link {
        display: block;
        padding: 1rem 0;
        border-bottom: 1px solid var(--border-color);
    }
    
    .mobile-menu-toggle {
        display: flex;
    }
    
    .mobile-menu-toggle.active span:nth-child(1) {
        transform: rotate(45deg) translate(5px, 5px);
    }
    
    .mobile-menu-toggle.active span:nth-child(2) {
        opacity: 0;
    }
    
    .mobile-menu-toggle.active span:nth-child(3) {
        transform: rotate(-45deg) translate(7px, -6px);
    }
    
    /* Hero */
    .hero {
        padding: calc(var(--header-height) + 2rem) 0 2rem;
        min-height: auto;
    }
    
    .hero-title {
        font-size: 2rem;
    }
    
    .hero-subtitle {
        font-size: 1rem;
    }
    
    .hero-buttons {
        flex-direction: column;
    }
    
    .hero-buttons .btn {
        width: 100%;
    }
    
    /* Features */
    .features-grid {
        grid-template-columns: 1fr;
    }
    
    /* Portfolio */
    .portfolio-grid {
        grid-template-columns: 1fr;
    }
    
    /* Footer */
    .footer-grid {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
    
    .footer-bottom-container {
        text-align: center;
    }
    
    .footer-legal-links {
        flex-direction: column;
        gap: 0.75rem;
    }
    
    /* Cookie Banner */
    .cookie-banner-container {
        flex-direction: column;
        text-align: center;
    }
    
    .cookie-buttons {
        width: 100%;
        flex-direction: column;
    }
    
    .cookie-buttons .btn {
        width: 100%;
    }
    
    /* Forms */
    .lead-form {
        padding: 1.5rem;
    }
    
    .contact-form-container {
        padding: 1.5rem;
    }
    
    /* Legal Pages */
    .legal-content {
        padding: calc(var(--header-height) + 2rem) 1rem 2rem;
    }
}

/* Small Mobile */
@media (max-width: 480px) {
    .container {
        padding: 0 1rem;
    }
    
    .hero-title {
        font-size: 1.75rem;
    }
    
    .btn {
        padding: 0.75rem 1.25rem;
        font-size: 0.9rem;
    }
    
    .feature-card,
    .service-card,
    .model-card {
        padding: 1.5rem;
    }
}

/* ========================================
   Cookie Tables (for Cookie Policy page)
   ======================================== */
.cookie-table {
    width: 100%;
    border-collapse: collapse;
    margin-bottom: 2rem;
    font-size: 0.9rem;
}

.cookie-table th,
.cookie-table td {
    padding: 0.875rem 1rem;
    text-align: left;
    border: 1px solid var(--border-color);
}

.cookie-table th {
    background-color: var(--primary-color);
    color: white;
    font-weight: 600;
}

.cookie-table tr:nth-child(even) {
    background-color: var(--background-alt);
}

.cookie-table td {
    color: var(--text-light);
}

.cookie-table tr:hover {
    background-color: var(--accent-color);
}

.cookie-table caption {
    text-align: left;
    font-weight: 600;
    color: var(--primary-dark);
    margin-bottom: 1rem;
    font-size: 1.1rem;
}

/* Responsive Table */
@media (max-width: 768px) {
    .cookie-table {
        display: block;
        overflow-x: auto;
        white-space: nowrap;
    }
    
    .cookie-table th,
    .cookie-table td {
        min-width: 120px;
    }
}

/* Print Styles */
@media print {
    .header,
    .cookie-banner,
    .cookie-modal {
        display: none !important;
    }
    
    .footer {
        background-color: #333;
        color: white;
    }
    
    main {
        padding-top: 0;
    }
}