/* ============================================
   PRECISION CRAFT — Design System
   Palette: Emerald + Gold | Geometry: Sharp
   ============================================ */

:root {
    --bg: #f7f8f6;
    --sidebar-bg: #ffffff;
    --text-primary: #1a1a2e;
    --text-secondary: #64748b;
    --accent: #0d9488;
    --accent-hover: #0f766e;
    --accent-glow: rgba(13, 148, 136, 0.12);
    --gold: #c9952d;
    --gold-soft: rgba(201, 149, 45, 0.10);
    --border: #e2e8f0;
    --card: #ffffff;
    --card-hover: #f0fdf9;
    --chat-bg: #f8fafc;
    --chat-user-bg: #0d9488;
    --chat-ai-bg: #f1f5f9;
    --skill-track: #e5e7eb;
    --shadow-sm: 0 1px 2px rgba(0,0,0,0.04);
    --shadow: 0 2px 8px rgba(0,0,0,0.06);
    --shadow-lg: 0 8px 24px rgba(0,0,0,0.08);
    --radius: 2px;
    --radius-lg: 4px;
    --transition: 0.3s cubic-bezier(0.22, 1, 0.36, 1);
}

body.dark-mode {
    --bg: #0c1222;
    --sidebar-bg: #141d30;
    --text-primary: #e8ecf1;
    --text-secondary: #8b99ad;
    --accent: #2dd4bf;
    --accent-hover: #14b8a6;
    --accent-glow: rgba(45, 212, 191, 0.10);
    --gold: #f5c842;
    --gold-soft: rgba(245, 200, 66, 0.10);
    --border: #1e2d44;
    --card: #1a2538;
    --card-hover: #1e2d44;
    --chat-bg: #0c1222;
    --chat-user-bg: #0d9488;
    --chat-ai-bg: #1e2d44;
    --skill-track: #1e2d44;
    --shadow-sm: 0 1px 2px rgba(0,0,0,0.15);
    --shadow: 0 2px 8px rgba(0,0,0,0.2);
    --shadow-lg: 0 8px 24px rgba(0,0,0,0.3);
}

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

body {
    font-family: 'Inter', -apple-system, sans-serif;
    background: var(--bg);
    color: var(--text-primary);
    line-height: 1.65;
    display: flex;
    min-height: 100vh;
    transition: background var(--transition), color var(--transition);
}

h1, h2, h3, h4, h5 {
    font-family: 'Space Grotesk', 'Inter', sans-serif;
    line-height: 1.2;
}

a { color: inherit; text-decoration: none; }

/* === REDUCED MOTION === */
@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after {
        animation-duration: 0.01ms !important;
        transition-duration: 0.01ms !important;
    }
}

/* === SIDEBAR === */
.sidebar {
    width: 280px;
    background: var(--sidebar-bg);
    border-right: 1px solid var(--border);
    padding: 1.4rem 1.25rem 1.25rem;
    position: fixed;
    top: 0;
    left: 0;
    bottom: 0;
    height: 100vh;
    height: 100dvh;
    display: flex;
    flex-direction: column;
    overflow-y: auto;
    overflow-x: hidden;
    scrollbar-width: thin;
    scrollbar-color: rgba(148, 163, 184, 0.25) transparent;
    transition: background var(--transition), border-color var(--transition);
    z-index: 100;
}

.sidebar::-webkit-scrollbar {
    width: 4px;
}

.sidebar::-webkit-scrollbar-track {
    background: transparent;
}

.sidebar::-webkit-scrollbar-thumb {
    background: rgba(148, 163, 184, 0.25);
    border-radius: 4px;
}

.sidebar::-webkit-scrollbar-thumb:hover {
    background: rgba(148, 163, 184, 0.45);
}

.sidebar-header {
    margin-bottom: 1.2rem;
    text-align: center;
    flex-shrink: 0;
}

.profile-avatar-wrapper {
    display: flex;
    justify-content: center;
    margin-bottom: 0.6rem;
}

.profile-avatar {
    width: 72px;
    height: 72px;
    border-radius: 50%;
    object-fit: cover;
    object-position: center 20%;
    border: 2.5px solid var(--accent);
    box-shadow: 0 4px 14px rgba(13, 148, 136, 0.25);
    transition: transform 0.3s cubic-bezier(0.34, 1.56, 0.64, 1), box-shadow 0.3s ease;
}

.profile-avatar:hover {
    transform: scale(1.05);
    box-shadow: 0 6px 20px rgba(13, 148, 136, 0.4);
}

.name-badge {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    flex-wrap: wrap;
    margin-bottom: 3px;
}

.name-badge h2 {
    font-size: 1.35rem;
    font-weight: 700;
    letter-spacing: -0.02em;
}

.badge {
    display: inline-block;
    background: #1a1a2e;
    color: #f5c842;
    font-family: 'Space Grotesk', sans-serif;
    font-size: 0.78rem;
    font-weight: 700;
    padding: 4px 12px;
    border-radius: var(--radius);
    letter-spacing: 1px;
    text-transform: uppercase;
    border: 1.5px solid #f5c842;
}

body.dark-mode .badge {
    background: rgba(245, 200, 66, 0.12);
    color: #f5c842;
    border-color: #f5c842;
}

.sidebar-header .subtitle {
    font-size: 0.85rem;
    color: var(--text-secondary);
    margin-top: 1px;
    font-weight: 400;
}

/* Navigation */
.nav-links {
    list-style: none;
    margin-bottom: 1rem;
}
.nav-links li { margin-bottom: 3px; }
.nav-links a {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 0.65rem 0.9rem;
    color: var(--text-secondary);
    font-weight: 500;
    font-size: 0.9rem;
    border-radius: var(--radius);
    border-left: 3px solid transparent;
    transition: all 0.2s ease;
}
.nav-links a i { width: 20px; text-align: center; font-size: 0.95rem; }

.nav-links a:hover {
    color: var(--accent);
    background: var(--accent-glow);
    border-left-color: transparent;
}

.nav-links a.active {
    color: var(--accent);
    background: var(--accent-glow);
    border-left-color: var(--accent);
    font-weight: 600;
}

/* Theme & Lang Buttons */
.theme-toggle {
    margin-top: auto;
    margin-bottom: 1rem;
    display: flex;
    flex-direction: column;
    gap: 6px;
    flex-shrink: 0;
}

#theme-btn, #lang-btn {
    background: transparent;
    border: 1px solid var(--border);
    color: var(--text-primary);
    padding: 0.5rem 0.85rem;
    border-radius: var(--radius);
    cursor: pointer;
    font-family: inherit;
    font-size: 0.84rem;
    font-weight: 500;
    transition: all 0.2s ease;
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
}

#theme-btn:hover, #lang-btn:hover {
    border-color: var(--accent);
    color: var(--accent);
    background: var(--accent-glow);
}

.flag-icon { font-size: 1.1rem; }

/* Contact */
.contact-info {
    font-size: 0.8rem;
    color: var(--text-secondary);
    border-top: 1px solid var(--border);
    padding-top: 0.9rem;
    padding-bottom: 0.5rem;
    flex-shrink: 0;
}
.contact-info p { margin-bottom: 5px; }
.contact-info a {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    transition: color 0.2s;
}
.contact-info a:hover { color: var(--accent); }
.contact-info i { width: 16px; }

/* === MAIN CONTENT === */
.content {
    margin-left: 280px;
    padding: 3rem 4rem;
    flex: 1;
    max-width: 920px;
}

/* Sections */
.section {
    display: none;
    margin-bottom: 4rem;
}
.section.active-section { display: block; }

.page-title {
    font-size: 2.2rem;
    font-weight: 700;
    letter-spacing: -0.03em;
    margin-bottom: 1.5rem;
    color: var(--text-primary);
    position: relative;
    padding-bottom: 12px;
}

.page-title::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 48px;
    height: 3px;
    background: var(--accent);
    border-radius: 1px;
}

.section-subtitle {
    font-size: 1.3rem;
    font-weight: 600;
    margin-top: 3rem;
    margin-bottom: 1.2rem;
    letter-spacing: -0.01em;
    color: var(--text-primary);
    display: flex;
    align-items: center;
    gap: 10px;
}

.section-subtitle .subtitle-accent {
    width: 28px;
    height: 3px;
    background: var(--gold);
    display: inline-block;
    border-radius: 1px;
}

.intro-text {
    color: var(--text-secondary);
    margin-bottom: 2rem;
    font-size: 1.05rem;
    line-height: 1.7;
}

/* === ABOUT CARD === */
.card {
    background: var(--card);
    padding: 2rem;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow);
    margin-bottom: 2rem;
    border: 1px solid var(--border);
    transition: background var(--transition), border-color var(--transition);
}
.card p { margin-bottom: 1rem; line-height: 1.75; }
.card p:last-child { margin-bottom: 0; }
.card strong { color: var(--accent); }

/* === TIMELINE === */
.timeline-alt {
    position: relative;
    margin: 2rem 0;
    padding: 0;
}
.timeline-alt::before {
    content: '';
    position: absolute;
    top: 0;
    bottom: 0;
    left: 50%;
    width: 2px;
    background: linear-gradient(180deg, var(--accent), var(--gold));
    transform: translateX(-50%);
}

.timeline-item-alt {
    position: relative;
    width: 50%;
    margin-bottom: 2rem;
}

.timeline-item-alt.left { left: 0; padding-right: 2.5rem; }
.timeline-item-alt.right { left: 50%; padding-left: 2.5rem; }

.timeline-dot {
    position: absolute;
    width: 14px;
    height: 14px;
    background: var(--accent);
    border-radius: 50%;
    top: 16px;
    box-shadow: 0 0 0 4px var(--accent-glow);
    animation: pulseDot 3s ease-in-out infinite;
}

@keyframes pulseDot {
    0%, 100% { box-shadow: 0 0 0 4px var(--accent-glow); }
    50% { box-shadow: 0 0 0 8px var(--accent-glow); }
}

.timeline-item-alt.left .timeline-dot { right: -7px; }
.timeline-item-alt.right .timeline-dot { left: -7px; }

.timeline-card {
    display: flex;
    flex-direction: column;
    box-shadow: var(--shadow);
    border-radius: var(--radius);
    overflow: hidden;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}
.timeline-card:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.timeline-head {
    background: var(--text-primary);
    color: #ffffff;
    padding: 0.9rem 1.3rem;
    position: relative;
}
body.dark-mode .timeline-head { background: #0d1520; }

.timeline-head h3 {
    font-size: 1rem;
    margin: 0;
    font-weight: 600;
    letter-spacing: -0.01em;
}

.timeline-body {
    padding: 1.1rem 1.3rem;
    border: 1px solid var(--border);
    border-top: none;
    background: var(--card);
}

.timeline-body .company {
    font-weight: 600;
    color: var(--accent);
    font-size: 0.8rem;
    margin-bottom: 0.6rem;
    text-transform: uppercase;
    letter-spacing: 0.8px;
}

/* Timeline Arrows */
.timeline-item-alt.left .arrow {
    position: absolute;
    top: 14px;
    right: -10px;
    width: 0; height: 0;
    border-top: 10px solid transparent;
    border-bottom: 10px solid transparent;
    border-left: 10px solid var(--text-primary);
}
.timeline-item-alt.right .arrow {
    position: absolute;
    top: 14px;
    left: -10px;
    width: 0; height: 0;
    border-top: 10px solid transparent;
    border-bottom: 10px solid transparent;
    border-right: 10px solid var(--text-primary);
}
body.dark-mode .timeline-item-alt.left .arrow { border-left-color: #0d1520; }
body.dark-mode .timeline-item-alt.right .arrow { border-right-color: #0d1520; }

/* === EDUCATION SECTION === */
.education-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1rem;
    margin-top: 1rem;
}

.education-card {
    background: var(--card);
    border: 1px solid var(--border);
    border-top: 3px solid var(--gold);
    padding: 1.5rem 1.2rem;
    border-radius: 0 0 var(--radius) var(--radius);
    text-align: center;
    box-shadow: var(--shadow-sm);
    transition: transform 0.3s ease, box-shadow 0.3s ease, border-color 0.3s;
}

.education-card:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-lg);
    border-top-color: var(--accent);
}

.education-icon {
    width: 44px;
    height: 44px;
    margin: 0 auto 1rem;
    background: var(--gold-soft);
    color: var(--gold);
    border-radius: var(--radius);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.2rem;
    transition: background 0.3s, color 0.3s;
}

.education-card:hover .education-icon {
    background: var(--accent-glow);
    color: var(--accent);
}

.education-card h3 {
    font-size: 0.95rem;
    font-weight: 600;
    margin-bottom: 4px;
}

.education-institution {
    font-size: 0.82rem;
    color: var(--text-secondary);
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

/* === SKILLS SECTION === */
.skills-category {
    margin-bottom: 2.5rem;
}

.category-header {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 1.2rem;
    padding-bottom: 8px;
    border-bottom: 1px solid var(--border);
}

.category-header i {
    font-size: 1.1rem;
    color: var(--accent);
    width: 28px;
    height: 28px;
    background: var(--accent-glow);
    border-radius: var(--radius);
    display: flex;
    align-items: center;
    justify-content: center;
}

.category-header h2 {
    font-size: 1.15rem;
    font-weight: 600;
    letter-spacing: -0.01em;
}

.skill-item {
    margin-bottom: 1rem;
    padding: 0.85rem 1rem;
    background: var(--card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    transition: border-color 0.2s, box-shadow 0.2s, transform 0.2s;
}

.skill-item:hover {
    border-color: var(--accent);
    box-shadow: var(--shadow-sm);
    transform: translateX(4px);
}

.skill-info {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 8px;
}

.skill-name {
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--text-primary);
}

.skill-level {
    font-size: 0.72rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.8px;
    padding: 2px 10px;
    border-radius: var(--radius);
}

.skill-level.advanced {
    color: var(--accent);
    background: var(--accent-glow);
}
.skill-level.intermediate {
    color: var(--gold);
    background: var(--gold-soft);
}
.skill-level.basic {
    color: var(--text-secondary);
    background: rgba(100, 116, 139, 0.08);
}
.skill-level.native {
    color: var(--accent);
    background: var(--accent-glow);
}

.skill-bar {
    width: 100%;
    height: 6px;
    background: var(--skill-track);
    border-radius: 1px;
    overflow: hidden;
}

.skill-fill {
    height: 100%;
    width: 0;
    background: linear-gradient(90deg, var(--accent), var(--gold));
    border-radius: 1px;
    transition: width 1.4s cubic-bezier(0.22, 1, 0.36, 1);
}

/* === STUDIES / ARTICLES === */
.studies-filters {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin: 1.5rem 0 2rem 0;
}

.filter-pill {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 0.55rem 1.15rem;
    background: var(--card);
    border: 1px solid var(--border);
    border-radius: 20px;
    color: var(--text-secondary);
    font-family: 'Space Grotesk', sans-serif;
    font-size: 0.88rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.25s cubic-bezier(0.22, 1, 0.36, 1);
    outline: none;
}

.filter-pill:hover {
    border-color: var(--accent);
    color: var(--accent);
    transform: translateY(-2px);
}

.filter-pill.active {
    background: var(--accent);
    border-color: var(--accent);
    color: #ffffff;
    box-shadow: 0 4px 14px var(--accent-glow);
}

.artigos-container {
    display: flex;
    flex-direction: column;
    gap: 2.5rem;
    margin-top: 1rem;
}

.area-group {
    animation: fadeIn 0.4s ease-out;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(10px); }
    to { opacity: 1; transform: translateY(0); }
}

.area-group-header {
    display: flex;
    align-items: center;
    gap: 10px;
    font-family: 'Space Grotesk', sans-serif;
    font-size: 1.22rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 1.2rem;
    padding-bottom: 0.6rem;
    border-bottom: 2px solid var(--border);
}

.area-group-header i {
    color: var(--accent);
    font-size: 1.15rem;
}

.artigos-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 1.5rem;
}

.artigo-item {
    position: relative;
    border-radius: var(--radius-lg);
    overflow: hidden;
    aspect-ratio: 16 / 10;
    cursor: pointer;
    background: var(--card);
    border: 1px solid var(--border);
    box-shadow: var(--shadow);
    transition: transform 0.3s cubic-bezier(0.34, 1.56, 0.64, 1), box-shadow 0.3s ease, border-color 0.3s ease;
    display: flex;
    flex-direction: column;
}

.artigo-item:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
    border-color: var(--accent);
}

.artigo-badge {
    position: absolute;
    top: 12px;
    left: 12px;
    z-index: 3;
    padding: 4px 10px;
    border-radius: 12px;
    font-family: 'Space Grotesk', sans-serif;
    font-size: 0.72rem;
    font-weight: 700;
    letter-spacing: 0.5px;
    text-transform: uppercase;
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    display: inline-flex;
    align-items: center;
    gap: 6px;
    box-shadow: 0 2px 8px rgba(0,0,0,0.25);
}

.badge-governanca {
    background: rgba(15, 23, 42, 0.88);
    color: #f5c842;
    border: 1px solid rgba(245, 200, 66, 0.5);
}

.badge-judicial {
    background: rgba(15, 23, 42, 0.88);
    color: #60a5fa;
    border: 1px solid rgba(96, 165, 250, 0.5);
}

.badge-tecnologia {
    background: rgba(15, 23, 42, 0.88);
    color: #2dd4bf;
    border: 1px solid rgba(45, 212, 191, 0.5);
}

.artigo-img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
    transition: transform 0.4s ease;
}

.artigo-item:hover .artigo-img {
    transform: scale(1.05);
}

.artigo-img-fallback {
    width: 100%;
    height: 100%;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 12px;
    background: linear-gradient(135deg, #1e293b 0%, #0f172a 100%);
    color: var(--text-secondary);
    padding: 1.5rem;
    text-align: center;
}

.artigo-img-fallback i.theme-big-icon {
    font-size: 2.8rem;
    color: var(--accent);
    opacity: 0.85;
}

.artigo-fallback-title {
    font-family: 'Space Grotesk', sans-serif;
    font-size: 0.98rem;
    font-weight: 600;
    color: #ffffff;
    line-height: 1.35;
}

.artigo-overlay {
    position: absolute;
    inset: 0;
    background: rgba(12, 18, 34, 0.9);
    color: #ffffff;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: opacity 0.3s ease;
    padding: 1.5rem;
    text-align: center;
    text-decoration: none;
    z-index: 4;
}

.artigo-item:hover .artigo-overlay { 
    opacity: 1; 
}

.artigo-title {
    font-family: 'Space Grotesk', sans-serif;
    font-size: 1.05rem;
    font-weight: 600;
    line-height: 1.4;
    margin-bottom: 0.5rem;
}

.artigo-status-tag {
    font-size: 0.76rem;
    font-weight: 600;
    color: #f5c842;
    background: rgba(245, 200, 66, 0.15);
    padding: 3px 10px;
    border-radius: 4px;
    border: 1px solid rgba(245, 200, 66, 0.35);
    margin-top: 6px;
    display: inline-block;
}

.artigo-icon {
    margin-top: 10px;
    font-size: 1.1rem;
    color: var(--accent);
}

/* Studies CTA Banner */
.studies-cta {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1.5rem;
    margin-top: 3rem;
    padding: 1.5rem 2rem;
    background: var(--card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow);
    transition: border-color 0.3s ease;
}

.studies-cta:hover {
    border-color: var(--accent);
}

.studies-cta-content {
    display: flex;
    align-items: center;
    gap: 1.2rem;
}

.studies-cta-content .cta-icon {
    font-size: 2.2rem;
    color: #25d366;
    flex-shrink: 0;
}

.studies-cta-content h4 {
    font-family: 'Space Grotesk', sans-serif;
    font-size: 1.05rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 4px;
}

.studies-cta-content p {
    font-size: 0.88rem;
    color: var(--text-secondary);
}

.btn-cta {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 0.75rem 1.4rem;
    background: #25d366;
    color: #ffffff;
    font-family: 'Space Grotesk', sans-serif;
    font-weight: 700;
    font-size: 0.92rem;
    border-radius: var(--radius);
    transition: all 0.25s ease;
    white-space: nowrap;
}

.btn-cta:hover {
    background: #1eb954;
    transform: translateY(-2px);
    box-shadow: 0 4px 14px rgba(37, 211, 102, 0.35);
}

@media (max-width: 768px) {
    .studies-cta {
        flex-direction: column;
        align-items: flex-start;
        gap: 1.2rem;
    }
    .btn-cta {
        width: 100%;
        justify-content: center;
    }
}

/* === DOMINO AUTOMATE PROMO === */
.promo-banner {
    background: linear-gradient(135deg, #1a1a2e 0%, #0f2027 50%, #0d9488 100%);
    border: 1px solid var(--accent);
    border-radius: var(--radius-lg);
    padding: 2rem 2.2rem;
    margin-bottom: 2.5rem;
    position: relative;
    overflow: hidden;
    box-shadow: var(--shadow-lg);
}

.promo-banner::before {
    content: '';
    position: absolute;
    top: -30px;
    right: -30px;
    width: 120px;
    height: 120px;
    background: rgba(45, 212, 191, 0.08);
    border-radius: 50%;
}

.promo-badge {
    display: inline-block;
    background: var(--gold);
    color: #1a1a2e;
    font-family: 'Space Grotesk', sans-serif;
    font-size: 0.65rem;
    font-weight: 700;
    padding: 3px 10px;
    border-radius: var(--radius);
    letter-spacing: 1px;
    text-transform: uppercase;
    margin-bottom: 0.8rem;
}

.promo-banner h3 {
    color: #ffffff;
    font-size: 1.25rem;
    font-weight: 700;
    margin-bottom: 0.6rem;
    letter-spacing: -0.01em;
}

.promo-banner p {
    color: rgba(255, 255, 255, 0.75);
    font-size: 0.92rem;
    line-height: 1.6;
    margin-bottom: 1.2rem;
    max-width: 560px;
}

.promo-stats {
    display: flex;
    gap: 2rem;
    margin-bottom: 1.4rem;
    flex-wrap: wrap;
}

.promo-stat {
    text-align: center;
}

.promo-stat-value {
    display: block;
    color: #2dd4bf;
    font-family: 'Space Grotesk', sans-serif;
    font-size: 1.5rem;
    font-weight: 700;
    line-height: 1;
}

.promo-stat-label {
    display: block;
    color: rgba(255, 255, 255, 0.55);
    font-size: 0.72rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-top: 4px;
}

.promo-link {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: var(--gold);
    color: #1a1a2e;
    font-family: 'Space Grotesk', sans-serif;
    font-size: 0.85rem;
    font-weight: 700;
    padding: 10px 24px;
    border-radius: var(--radius);
    text-decoration: none;
    transition: transform 0.2s, box-shadow 0.2s;
    letter-spacing: 0.3px;
}

.promo-link:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 16px rgba(201, 149, 45, 0.3);
}

/* === STUDY AREA GROUPS === */
.area-group {
    margin-bottom: 2rem;
}

.area-group-header {
    font-family: 'Space Grotesk', sans-serif;
    font-size: 1rem;
    font-weight: 600;
    color: var(--accent);
    margin-bottom: 1rem;
    padding-bottom: 6px;
    border-bottom: 2px solid var(--accent);
    display: flex;
    align-items: center;
    gap: 8px;
}

.area-group-header i {
    font-size: 0.9rem;
}

.empty-state {
    text-align: center;
    padding: 3rem;
    color: var(--text-secondary);
    border: 2px dashed var(--border);
    background: transparent;
    border-radius: var(--radius);
}
.empty-state i { font-size: 2rem; margin-bottom: 1rem; opacity: 0.5; display: block; }

/* === AI CHAT === */
.chat-container {
    background: var(--card);
    border-radius: var(--radius-lg);
    border: 1px solid var(--border);
    display: flex;
    flex-direction: column;
    height: 500px;
    box-shadow: var(--shadow);
}

.chat-box {
    flex: 1;
    padding: 1.5rem;
    overflow-y: auto;
    background: var(--chat-bg);
}

.message {
    display: flex;
    margin-bottom: 1.2rem;
    align-items: flex-start;
}

.message-avatar {
    width: 34px;
    height: 34px;
    border-radius: var(--radius);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-right: 0.8rem;
    flex-shrink: 0;
    font-size: 1rem;
}

.ai-message .message-avatar {
    background: var(--accent);
    color: white;
}

.user-message { flex-direction: row-reverse; }

.user-message .message-avatar {
    background: var(--text-secondary);
    color: white;
    margin-right: 0;
    margin-left: 0.8rem;
}

.message-content {
    background: var(--card);
    padding: 0.9rem 1.1rem;
    border-radius: var(--radius);
    font-size: 0.92rem;
    box-shadow: var(--shadow-sm);
    max-width: 80%;
    border: 1px solid var(--border);
    line-height: 1.6;
}

.user-message .message-content {
    background: var(--chat-user-bg);
    color: white;
    border-color: transparent;
}

.user-message a { color: #a7f3d0; }
.ai-message a { color: var(--accent); font-weight: 600; }

.chat-input-area {
    display: flex;
    padding: 0.8rem 1rem;
    background: var(--sidebar-bg);
    border-top: 1px solid var(--border);
    border-radius: 0 0 var(--radius-lg) var(--radius-lg);
    gap: 8px;
}

#chat-input {
    flex: 1;
    padding: 0.7rem 1rem;
    border: 1px solid var(--border);
    border-radius: var(--radius);
    background: var(--bg);
    color: var(--text-primary);
    outline: none;
    font-family: inherit;
    font-size: 0.9rem;
    transition: border-color 0.2s;
}
#chat-input:focus { border-color: var(--accent); }

#send-btn {
    background: var(--accent);
    color: white;
    border: none;
    width: 40px;
    height: 40px;
    border-radius: var(--radius);
    cursor: pointer;
    transition: background 0.2s, transform 0.15s;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.9rem;
}
#send-btn:hover {
    background: var(--accent-hover);
    transform: scale(1.05);
}

/* === SCROLL REVEAL ANIMATIONS === */
.reveal-item {
    opacity: 0;
    transform: translateY(24px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

.reveal-item.revealed {
    opacity: 1;
    transform: translateY(0);
}

/* Stagger delays for children */
.reveal-item:nth-child(1) { transition-delay: 0s; }
.reveal-item:nth-child(2) { transition-delay: 0.08s; }
.reveal-item:nth-child(3) { transition-delay: 0.16s; }
.reveal-item:nth-child(4) { transition-delay: 0.24s; }
.reveal-item:nth-child(5) { transition-delay: 0.32s; }
.reveal-item:nth-child(6) { transition-delay: 0.4s; }
.reveal-item:nth-child(7) { transition-delay: 0.48s; }
.reveal-item:nth-child(8) { transition-delay: 0.56s; }

/* Section fade-in when activated */
.section.active-section {
    animation: sectionIn 0.45s ease-out;
}

@keyframes sectionIn {
    from { opacity: 0; transform: translateY(16px); }
    to { opacity: 1; transform: translateY(0); }
}

/* === MOBILE HAMBURGER === */
.mobile-header {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    height: 56px;
    background: var(--sidebar-bg);
    border-bottom: 1px solid var(--border);
    z-index: 200;
    align-items: center;
    justify-content: space-between;
    padding: 0 1rem;
}

.mobile-brand {
    display: flex;
    align-items: center;
    gap: 10px;
}

.mobile-avatar {
    width: 34px;
    height: 34px;
    border-radius: 50%;
    object-fit: cover;
    object-position: center 20%;
    border: 1.5px solid var(--accent);
}

.mobile-header h2 {
    font-size: 1.1rem;
    font-weight: 700;
}

.hamburger {
    background: none;
    border: none;
    color: var(--text-primary);
    font-size: 1.3rem;
    cursor: pointer;
    padding: 8px;
}

.sidebar-overlay {
    display: none;
    position: fixed;
    inset: 0;
    background: rgba(0,0,0,0.4);
    z-index: 99;
}

@media (max-height: 700px) {
    .sidebar {
        padding: 1rem 1rem 0.8rem;
    }
    .profile-avatar {
        width: 60px;
        height: 60px;
    }
    .sidebar-header {
        margin-bottom: 0.8rem;
    }
    .sidebar-header .subtitle {
        font-size: 0.8rem;
    }
    .nav-links {
        margin-bottom: 0.6rem;
    }
    .nav-links a {
        padding: 0.5rem 0.8rem;
        font-size: 0.85rem;
    }
    .theme-toggle {
        margin-bottom: 0.6rem;
    }
    #theme-btn, #lang-btn {
        padding: 0.4rem 0.75rem;
        font-size: 0.8rem;
    }
    .contact-info {
        padding-top: 0.6rem;
        font-size: 0.76rem;
    }
}

/* === RESPONSIVE === */
@media (max-width: 768px) {
    .mobile-header { display: flex; }

    .sidebar {
        transform: translateX(-100%);
        transition: transform 0.3s ease;
        z-index: 150;
        width: 280px;
    }

    .sidebar.open { transform: translateX(0); }
    .sidebar-overlay.open { display: block; }

    .content {
        margin-left: 0;
        padding: 72px 1.2rem 2rem;
        max-width: 100%;
    }

    .page-title { font-size: 1.7rem; }

    .education-grid {
        grid-template-columns: 1fr;
        gap: 0.8rem;
    }

    .timeline-alt::before { left: 20px; }
    .timeline-item-alt {
        width: 100%;
        padding-left: 50px !important;
        padding-right: 0 !important;
        left: 0 !important;
    }
    .timeline-item-alt.left .timeline-dot,
    .timeline-item-alt.right .timeline-dot {
        left: 13px;
        right: auto;
    }
    .timeline-item-alt.left .arrow,
    .timeline-item-alt.right .arrow {
        right: auto;
        left: -10px;
        border-right: 10px solid var(--text-primary);
        border-left: none;
    }
    body.dark-mode .timeline-item-alt.left .arrow,
    body.dark-mode .timeline-item-alt.right .arrow {
        border-right-color: #0d1520;
        border-left-color: transparent;
    }

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

    .chat-container { height: 400px; }
}

@media (max-width: 480px) {
    .content { padding: 64px 1rem 1.5rem; }
    .page-title { font-size: 1.5rem; }
    .section-subtitle { font-size: 1.1rem; }
    .skill-item { padding: 0.7rem 0.8rem; }
}