/* ============================================
   De Carvalho Atelier - Stone Setting Training
   Professional Stylesheet
   ============================================ */

/* CSS Variables */
:root {
    /* Colors */
    --primary-color: #1a1a1a;
    --primary-light: #2e2e2e;
    --primary-dark: #0d0d0d;
    --accent-color: #c9a227;
    --accent-light: #e8c547;
    --text-dark: #2c2c2c;
    --text-light: #666666;
    --text-muted: #888888;
    --bg-white: #ffffff;
    --bg-light: #f8f7fa;
    --bg-cream: #faf9f7;
    --border-color: #e5e5e5;

    /* Typography */
    --font-heading: 'Playfair Display', Georgia, serif;
    --font-body: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;

    /* Spacing */
    --section-padding: 100px 0;
    --container-width: 1200px;

    /* Transitions */
    --transition-fast: 0.2s ease;
    --transition-normal: 0.3s ease;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-body);
    font-size: 16px;
    line-height: 1.7;
    color: var(--text-dark);
    background-color: var(--bg-white);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-heading);
    font-weight: 500;
    line-height: 1.3;
    color: var(--text-dark);
}

h1 { font-size: clamp(2.5rem, 5vw, 4rem); }
h2 { font-size: clamp(2rem, 4vw, 3rem); }
h3 { font-size: clamp(1.5rem, 3vw, 2rem); }
h4 { font-size: 1.25rem; }

p {
    margin-bottom: 1rem;
}

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

a:hover {
    color: var(--accent-color);
}

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

/* Container */
.container {
    width: 100%;
    max-width: var(--container-width);
    margin: 0 auto;
    padding: 0 20px;
}

/* Skip Link */
.skip-link {
    position: absolute;
    top: -100%;
    left: 50%;
    transform: translateX(-50%);
    background: var(--primary-color);
    color: white;
    padding: 10px 20px;
    z-index: 9999;
    border-radius: 0 0 8px 8px;
}

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

/* Header */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(255, 255, 255, 0.98);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--border-color);
    transition: box-shadow var(--transition-normal);
}

.header.scrolled {
    box-shadow: 0 2px 20px rgba(0, 0, 0, 0.08);
}

.header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 80px;
}

.logo {
    font-family: var(--font-heading);
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--primary-color);
    letter-spacing: 0.5px;
}

.logo span {
    color: var(--accent-color);
}

/* Navigation */
.nav-menu {
    display: flex;
    align-items: center;
    gap: 40px;
    list-style: none;
}

.nav-link {
    font-size: 0.95rem;
    font-weight: 500;
    color: var(--text-dark);
    text-transform: uppercase;
    letter-spacing: 1px;
    padding: 8px 0;
    position: relative;
}

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

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

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

/* Language Switcher */
.lang-switcher {
    display: flex;
    gap: 8px;
    margin-left: 20px;
    padding-left: 20px;
    border-left: 1px solid var(--border-color);
}

.lang-btn {
    background: none;
    border: 1px solid var(--border-color);
    padding: 6px 12px;
    font-size: 0.85rem;
    font-weight: 500;
    color: var(--text-light);
    cursor: pointer;
    border-radius: 4px;
    transition: all var(--transition-fast);
}

.lang-btn:hover {
    border-color: var(--primary-color);
    color: var(--primary-color);
}

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

/* Mobile Menu Button */
.mobile-menu-btn {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 10px;
}

.mobile-menu-btn span {
    display: block;
    width: 25px;
    height: 2px;
    background: var(--text-dark);
    transition: all var(--transition-fast);
}

/* Hero Section */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    padding: 120px 20px;
    background: linear-gradient(135deg, var(--bg-light) 0%, var(--bg-cream) 100%);
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -20%;
    width: 70%;
    height: 200%;
    background: radial-gradient(ellipse, rgba(74, 44, 90, 0.03) 0%, transparent 70%);
    pointer-events: none;
}

.hero-content {
    max-width: 800px;
    position: relative;
    z-index: 1;
}

.hero-subtitle {
    font-size: 0.9rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 3px;
    color: var(--accent-color);
    margin-bottom: 20px;
}

.hero h1 {
    margin-bottom: 24px;
    color: var(--primary-dark);
}

.hero-description {
    font-size: 1.2rem;
    color: var(--text-light);
    max-width: 600px;
    margin: 0 auto 40px;
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 16px 36px;
    font-size: 0.95rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1px;
    border-radius: 4px;
    cursor: pointer;
    transition: all var(--transition-normal);
    border: none;
}

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

.btn-primary:hover {
    background: var(--primary-dark);
    color: white;
    transform: translateY(-2px);
    box-shadow: 0 10px 30px rgba(74, 44, 90, 0.3);
}

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

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

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

.btn-accent:hover {
    background: var(--accent-light);
    color: var(--text-dark);
    transform: translateY(-2px);
}

.hero-buttons {
    display: flex;
    gap: 20px;
    justify-content: center;
    flex-wrap: wrap;
}

/* Sections */
.section {
    padding: var(--section-padding);
}

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

.section-header {
    text-align: center;
    max-width: 700px;
    margin: 0 auto 60px;
}

.section-header h2 {
    margin-bottom: 16px;
    color: var(--primary-dark);
}

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

/* About Section */
.about-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 80px;
    align-items: center;
}

.about-image {
    position: relative;
}

.about-image-placeholder {
    aspect-ratio: 4/5;
    background: linear-gradient(135deg, var(--primary-light) 0%, var(--primary-dark) 100%);
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 1.2rem;
    text-align: center;
    padding: 40px;
}

.about-image::after {
    content: '';
    position: absolute;
    top: 20px;
    left: 20px;
    right: -20px;
    bottom: -20px;
    border: 2px solid var(--accent-color);
    border-radius: 8px;
    z-index: -1;
}

.about-content h2 {
    margin-bottom: 24px;
}

.about-content p {
    color: var(--text-light);
    margin-bottom: 20px;
}

.about-features {
    margin-top: 30px;
    display: grid;
    gap: 16px;
}

.about-feature {
    display: flex;
    align-items: center;
    gap: 12px;
}

.about-feature-icon {
    width: 24px;
    height: 24px;
    background: var(--accent-color);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 12px;
    flex-shrink: 0;
}

/* Values / Pillars Section */
.values-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 40px;
}

.pillars-grid {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 30px;
    margin-bottom: 48px;
}

.pillars-grid .value-card {
    flex: 1 1 3200px;
    max-width: 320px;
}

.precision-tagline {
    text-align: center;
    font-style: italic;
    font-size: 1.1rem;
    color: var(--primary-color);
    font-weight: 500;
    margin-top: 8px;
}

.value-card {
    text-align: center;
    padding: 40px 30px;
    background: white;
    border-radius: 8px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.05);
    transition: transform var(--transition-normal), box-shadow var(--transition-normal);
}

.value-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.1);
}

.value-icon {
    width: 70px;
    height: 70px;
    margin: 0 auto 24px;
    background: var(--bg-light);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 28px;
    color: var(--primary-color);
}

.value-card h4 {
    margin-bottom: 12px;
    color: var(--primary-dark);
}

.value-card p {
    color: var(--text-light);
    font-size: 0.95rem;
}

/* Courses Section */
.courses-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 30px;
}

.course-card {
    background: white;
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
    transition: transform var(--transition-normal), box-shadow var(--transition-normal);
    display: flex;
    flex-direction: column;
}

.course-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 20px 50px rgba(0, 0, 0, 0.15);
}

.course-card.featured {
    border: 2px solid var(--accent-color);
    position: relative;
}

.course-badge {
    position: absolute;
    top: 20px;
    right: 20px;
    background: var(--accent-color);
    color: white;
    padding: 6px 14px;
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1px;
    border-radius: 20px;
}

.course-header {
    padding: 40px 30px 30px;
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-dark) 100%);
    color: white;
    text-align: center;
}

.course-level {
    font-size: 0.85rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 2px;
    opacity: 0.9;
    margin-bottom: 10px;
}

.course-card.initiation .course-header {
    background: linear-gradient(135deg, #5a6b7a 0%, #3d4a56 100%);
}

.course-card.intermediate .course-header {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-dark) 100%);
}

.course-card.expert .course-header {
    background: linear-gradient(135deg, var(--accent-color) 0%, #a88820 100%);
}

.course-header h3 {
    color: white;
    margin-bottom: 8px;
}

.course-duration {
    font-size: 0.9rem;
    opacity: 0.9;
}

.course-body {
    padding: 30px;
    flex-grow: 1;
    display: flex;
    flex-direction: column;
}

.course-description {
    color: var(--text-light);
    margin-bottom: 24px;
}

.course-features {
    list-style: none;
    margin-bottom: 30px;
}

.course-features li {
    padding: 10px 0;
    border-bottom: 1px solid var(--border-color);
    color: var(--text-dark);
    font-size: 0.95rem;
    display: flex;
    align-items: flex-start;
    gap: 10px;
}

.course-features li:last-child {
    border-bottom: none;
}

.course-features li::before {
    content: '✓';
    color: var(--accent-color);
    font-weight: bold;
}

.course-footer {
    margin-top: auto;
    text-align: center;
}

.course-card .btn {
    width: 100%;
    justify-content: center;
}

/* Course Details Page */
.course-detail-section {
    padding: 60px 0;
}

.course-detail-header {
    text-align: center;
    padding: 140px 20px 80px;
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-dark) 100%);
    color: white;
}

.course-detail-header h1 {
    color: white;
    margin-bottom: 16px;
}

.course-detail-header p {
    font-size: 1.2rem;
    opacity: 0.9;
    max-width: 600px;
    margin: 0 auto;
}

.curriculum-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 30px;
    margin-top: 40px;
}

.curriculum-item {
    background: var(--bg-light);
    padding: 30px;
    border-radius: 8px;
    border-left: 4px solid var(--accent-color);
}

.curriculum-item h4 {
    margin-bottom: 12px;
    color: var(--primary-dark);
}

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

/* CTA Section */
.cta-section {
    padding: 80px 0;
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-dark) 100%);
    color: white;
    text-align: center;
}

.cta-section h2 {
    color: white;
    margin-bottom: 16px;
}

.cta-section p {
    font-size: 1.1rem;
    opacity: 0.9;
    max-width: 600px;
    margin: 0 auto 30px;
}

/* Contact Section */
.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
}

.contact-info h3 {
    margin-bottom: 24px;
}

.contact-item {
    display: flex;
    align-items: flex-start;
    gap: 16px;
    margin-bottom: 24px;
}

.contact-icon {
    width: 50px;
    height: 50px;
    background: var(--bg-light);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--primary-color);
    font-size: 20px;
    flex-shrink: 0;
}

.contact-item-content h4 {
    margin-bottom: 4px;
    font-family: var(--font-body);
    font-weight: 600;
}

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

.contact-item-content a {
    color: var(--text-light);
}

.contact-item-content a:hover {
    color: var(--primary-color);
}

.social-links {
    display: flex;
    gap: 12px;
    margin-top: 30px;
}

.social-link {
    width: 44px;
    height: 44px;
    background: var(--bg-light);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--primary-color);
    font-size: 18px;
    transition: all var(--transition-fast);
}

.social-link:hover {
    background: var(--primary-color);
    color: white;
}

/* Contact Form */
.contact-form {
    background: var(--bg-light);
    padding: 40px;
    border-radius: 12px;
}

.form-group {
    margin-bottom: 24px;
}

.form-group label {
    display: block;
    margin-bottom: 8px;
    font-weight: 500;
    color: var(--text-dark);
}

.form-group input,
.form-group textarea,
.form-group select {
    width: 100%;
    padding: 14px 18px;
    border: 1px solid var(--border-color);
    border-radius: 6px;
    font-family: var(--font-body);
    font-size: 1rem;
    color: var(--text-dark);
    background: white;
    transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(74, 44, 90, 0.1);
}

.form-group textarea {
    min-height: 150px;
    resize: vertical;
}

.contact-form .btn {
    width: 100%;
    justify-content: center;
}

/* Map */
.map-section {
    padding: 0;
    height: 400px;
    background: var(--bg-light);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-muted);
}

/* Footer */
.footer {
    background: var(--primary-dark);
    color: white;
    padding: 60px 0 30px;
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: 40px;
    margin-bottom: 40px;
}

.footer-brand .logo {
    color: white;
    margin-bottom: 16px;
    display: block;
}

.footer-brand p {
    color: rgba(255, 255, 255, 0.7);
    font-size: 0.95rem;
}

.footer-title {
    font-size: 1rem;
    font-weight: 600;
    margin-bottom: 20px;
    color: white;
}

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

.footer-links li {
    margin-bottom: 12px;
}

.footer-links a {
    color: rgba(255, 255, 255, 0.7);
    font-size: 0.95rem;
    transition: color var(--transition-fast);
}

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

.footer-bottom {
    padding-top: 30px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.footer-bottom p {
    color: rgba(255, 255, 255, 0.5);
    font-size: 0.9rem;
    margin-bottom: 0;
}

.footer-social {
    display: flex;
    gap: 12px;
}

.footer-social .social-link {
    background: rgba(255, 255, 255, 0.1);
    color: white;
}

.footer-social .social-link:hover {
    background: var(--accent-color);
}

/* WhatsApp Button */
.whatsapp-btn {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 60px;
    height: 60px;
    background: #25D366;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 28px;
    box-shadow: 0 4px 20px rgba(37, 211, 102, 0.4);
    z-index: 999;
    transition: transform var(--transition-fast), box-shadow var(--transition-fast);
}

.whatsapp-btn:hover {
    transform: scale(1.1);
    box-shadow: 0 6px 30px rgba(37, 211, 102, 0.5);
    color: white;
}

/* Responsive */
@media (max-width: 1024px) {
    .about-grid {
        gap: 50px;
    }

    .values-grid {
        grid-template-columns: repeat(2, 1fr);
    }

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

@media (max-width: 768px) {
    :root {
        --section-padding: 60px 0;
    }

    .header-inner {
        height: 70px;
    }

    .mobile-menu-btn {
        display: flex;
    }

    .nav {
        position: fixed;
        top: 70px;
        left: 0;
        right: 0;
        background: white;
        padding: 20px;
        box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
        transform: translateY(-100%);
        opacity: 0;
        visibility: hidden;
        transition: all var(--transition-normal);
    }

    .nav.active {
        transform: translateY(0);
        opacity: 1;
        visibility: visible;
    }

    .nav-menu {
        flex-direction: column;
        gap: 0;
    }

    .nav-link {
        display: block;
        padding: 15px 0;
        border-bottom: 1px solid var(--border-color);
    }

    .lang-switcher {
        margin-left: 0;
        padding-left: 0;
        border-left: none;
        padding-top: 15px;
        justify-content: center;
    }

    .hero {
        min-height: auto;
        padding: 140px 20px 80px;
    }

    .hero-buttons {
        flex-direction: column;
        align-items: center;
    }

    .about-grid {
        grid-template-columns: 1fr;
        gap: 40px;
    }

    .about-image {
        order: -1;
    }

    .about-image::after {
        display: none;
    }

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

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

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

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

    .footer-bottom {
        flex-direction: column;
        gap: 20px;
        text-align: center;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 15px;
    }

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

    .btn {
        padding: 14px 28px;
        font-size: 0.9rem;
    }

    .contact-form {
        padding: 25px;
    }

    .whatsapp-btn {
        bottom: 20px;
        right: 20px;
        width: 50px;
        height: 50px;
        font-size: 24px;
    }
}

/* Animation Classes */
.fade-in {
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

.fade-in.visible {
    opacity: 1;
    transform: translateY(0);
}

/* Logo Image */
.logo img {
    height: 48px;
    width: auto;
    display: block;
}

.footer-logo img {
    filter: invert(1) brightness(10);
    height: 40px;
}

/* About Section Image */
.about-img {
    width: 100%;
    border-radius: 8px;
    object-fit: cover;
    aspect-ratio: 4/5;
    display: block;
}

/* Course Card: Adapted Module */
.course-card.adapted .course-header {
    background: linear-gradient(135deg, #2a7a6e 0%, #1a5a4e 100%);
}

/* Contact Form Banners */
.form-success {
    background: #d4edda;
    border: 1px solid #c3e6cb;
    color: #155724;
    padding: 20px 24px;
    border-radius: 8px;
    margin-bottom: 24px;
    font-weight: 500;
}

.form-error {
    background: #f8d7da;
    border: 1px solid #f5c6cb;
    color: #721c24;
    padding: 20px 24px;
    border-radius: 8px;
    margin-bottom: 24px;
    font-weight: 500;
}

/* Adapted CTA block inside curriculum */
.adapted-cta-block .btn {
    display: inline-flex;
}

/* Cookie Consent Banner */
.cookie-banner {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    background: var(--bg-white);
    border-top: 1px solid var(--border-color);
    box-shadow: 0 -4px 24px rgba(0, 0, 0, 0.08);
    z-index: 10000;
    padding: 18px 0;
}

.cookie-banner-inner {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
    display: flex;
    align-items: center;
    gap: 24px;
    flex-wrap: wrap;
}

.cookie-text {
    flex: 1;
    min-width: 200px;
    font-size: 0.875rem;
    color: var(--text-light);
    margin: 0;
    line-height: 1.5;
}

.cookie-actions {
    display: flex;
    gap: 10px;
    flex-shrink: 0;
}

.btn-cookie-decline {
    padding: 8px 20px;
    font-size: 0.875rem;
    background: transparent;
    border: 1px solid var(--border-color);
    color: var(--text-light);
    border-radius: 4px;
    cursor: pointer;
    transition: border-color var(--transition-fast), color var(--transition-fast);
}

.btn-cookie-decline:hover {
    border-color: var(--text-light);
    color: var(--text-dark);
}

.btn-cookie-accept {
    padding: 8px 20px;
    font-size: 0.875rem;
    background: var(--primary-color);
    color: white;
    border: 1px solid var(--primary-color);
    border-radius: 4px;
    cursor: pointer;
    transition: background var(--transition-fast);
}

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

.cookie-banner-visible .whatsapp-btn {
    bottom: 100px;
}

@media (max-width: 600px) {
    .cookie-banner-inner {
        flex-direction: column;
        align-items: stretch;
        gap: 14px;
    }

    .cookie-actions {
        justify-content: stretch;
    }

    .btn-cookie-decline,
    .btn-cookie-accept {
        flex: 1;
        text-align: center;
    }

    .cookie-banner-visible .whatsapp-btn {
        bottom: 150px;
    }
}

/* Print Styles */
@media print {
    .header,
    .whatsapp-btn,
    .footer {
        display: none;
    }

    .hero {
        min-height: auto;
        padding: 40px 20px;
    }
}