/* ==========================================================================
   PORTFÓLIO — ALEXANDRE DE CAMPOS
   AI Engineer · Cientista de Dados · Base de Apoio Logístico do Exército (BaApLog)
   ========================================================================== */

/* 1. DESIGN TOKENS & VARIÁVEIS CSS */
:root {
    /* Paleta Institucional Militar & Neutros Quentes */
    --color-bg:            #f7f5ed;
    --color-bg-alt:        #ece7d5;
    --color-surface:       #ffffff;
    --color-surface-hover: #fcfbfa;
    --color-text:          #242918;
    --color-text-muted:    #5c634e;
    
    --color-primary:       #424c1e;  /* Verde oliva militar */
    --color-primary-dark:  #2f3714;
    --color-primary-light: #61702f;
    --color-primary-subtle:#edf2df;

    --color-accent:        #b88a38;  /* Dourado / Bronze */
    --color-accent-dark:   #966e27;
    --color-accent-subtle: #fbf3e4;

    --color-border:        #d6cfbe;
    --color-border-subtle: #e5dec9;
    --color-error:         #c43826;
    --color-success:       #2e7d32;

    /* Badges de Categorias */
    --badge-ai-bg:         #e8f4eb;
    --badge-ai-text:       #1b5e20;
    --badge-bi-bg:         #eef2fa;
    --badge-bi-text:       #1a437a;
    --badge-code-bg:       #f5edf8;
    --badge-code-text:     #5e2075;
    --badge-web-bg:        #e3f6f5;
    --badge-web-text:      #0b615c;
    --badge-media-bg:      #faeee6;
    --badge-media-text:    #823707;

    /* Sombras Elevadas */
    --shadow-sm: 0 2px 4px rgba(36, 41, 24, 0.05);
    --shadow-md: 0 6px 16px rgba(36, 41, 24, 0.08);
    --shadow-lg: 0 16px 36px rgba(36, 41, 24, 0.12);
    --shadow-hover: 0 20px 40px rgba(36, 41, 24, 0.16);

    /* Tipografia */
    --font-heading: 'Montserrat', -apple-system, BlinkMacSystemFont, sans-serif;
    --font-body:    'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    --font-mono:    'Fira Code', monospace, Consolas;

    /* Layout & Estrutura */
    --max-width:     1200px;
    --header-height: 76px;

    /* Raios de Borda */
    --radius-sm: 6px;
    --radius:    12px;
    --radius-lg: 20px;
    --radius-full: 9999px;

    /* Transições Fluidas */
    --transition-fast: 0.18s cubic-bezier(0.16, 1, 0.3, 1);
    --transition:      0.28s cubic-bezier(0.16, 1, 0.3, 1);
    --transition-slow: 0.45s cubic-bezier(0.16, 1, 0.3, 1);
}

/* TEMA ESCURO (DARK MODE) */
[data-theme="dark"] {
    --color-bg:            #13160e;
    --color-bg-alt:        #1b1f13;
    --color-surface:       #222718;
    --color-surface-hover: #29301e;
    --color-text:          #eae7d8;
    --color-text-muted:    #9ea390;

    --color-primary:       #93ab5c;
    --color-primary-dark:  #758c42;
    --color-primary-light: #aecd72;
    --color-primary-subtle:#2a341a;

    --color-accent:        #dcb164;
    --color-accent-dark:   #b88a38;
    --color-accent-subtle: #3a3118;

    --color-border:        #343b27;
    --color-border-subtle: #2b321e;

    /* Badges no Dark Mode */
    --badge-ai-bg:         #1d331f;
    --badge-ai-text:       #a7e5ad;
    --badge-bi-bg:         #1a2a44;
    --badge-bi-text:       #a9cbfa;
    --badge-code-bg:       #331d3d;
    --badge-code-text:     #e3aef2;
    --badge-web-bg:        #153331;
    --badge-web-text:      #98e5e1;
    --badge-media-bg:      #3d281a;
    --badge-media-text:    #f5bca0;

    --shadow-sm: 0 2px 6px rgba(0, 0, 0, 0.35);
    --shadow-md: 0 8px 20px rgba(0, 0, 0, 0.45);
    --shadow-lg: 0 18px 42px rgba(0, 0, 0, 0.55);
    --shadow-hover: 0 24px 48px rgba(0, 0, 0, 0.7);
}

/* 2. RESET & BASE */
*, *::before, *::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
    scroll-padding-top: var(--header-height);
}

body {
    font-family: var(--font-body);
    font-size: 1rem;
    line-height: 1.65;
    color: var(--color-text);
    background-color: var(--color-bg);
    transition: background-color var(--transition), color var(--transition);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-heading);
    font-weight: 700;
    line-height: 1.25;
    color: var(--color-text);
    letter-spacing: -0.02em;
}

p {
    margin-bottom: 1.1rem;
}

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;
    display: block;
}

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

/* Acessibilidade Motion */
@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
        scroll-behavior: auto !important;
    }
}

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

/* 3. HEADER & NAVEGAÇÃO */
.header {
    position: sticky;
    top: 0;
    z-index: 1000;
    background-color: var(--color-bg);
    border-bottom: 1px solid var(--color-border-subtle);
    backdrop-filter: blur(12px);
    transition: background-color var(--transition), border-color var(--transition);
}

.header__container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: var(--header-height);
}

.header__logo {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    font-family: var(--font-heading);
    font-weight: 800;
    color: var(--color-text);
}

.logo__badge {
    background-color: var(--color-primary);
    color: #ffffff;
    padding: 0.28rem 0.55rem;
    border-radius: var(--radius-sm);
    font-size: 0.9rem;
    letter-spacing: 0.05em;
    box-shadow: var(--shadow-sm);
}

.logo__text {
    font-size: 1.1rem;
    letter-spacing: -0.01em;
}

.nav__list {
    display: flex;
    align-items: center;
    list-style: none;
    gap: 1.75rem;
}

.nav__link {
    font-size: 0.95rem;
    font-weight: 500;
    color: var(--color-text-muted);
    padding: 0.4rem 0.2rem;
    position: relative;
    transition: color var(--transition-fast);
}

.nav__link:hover,
.nav__link.is-active {
    color: var(--color-primary);
}

.nav__link.is-active::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 100%;
    height: 2px;
    background-color: var(--color-primary);
    border-radius: var(--radius-full);
}

.theme-toggle {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    border-radius: var(--radius-full);
    background-color: var(--color-bg-alt);
    border: 1px solid var(--color-border);
    font-size: 1.15rem;
    transition: transform var(--transition-fast), background-color var(--transition);
}

.theme-toggle:hover {
    transform: rotate(20deg) scale(1.06);
}

.nav__toggle {
    display: none;
    flex-direction: column;
    justify-content: space-around;
    width: 32px;
    height: 24px;
}

.nav__toggle span {
    display: block;
    width: 100%;
    height: 2.5px;
    background-color: var(--color-text);
    border-radius: var(--radius-full);
    transition: var(--transition-fast);
}

/* 4. HERO SECTION */
.hero {
    padding: 5rem 0 4rem;
    position: relative;
    overflow: hidden;
}

.hero__container {
    display: grid;
    grid-template-columns: 1.25fr 0.85fr;
    gap: 3.5rem;
    align-items: center;
}

.hero__badge {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.35rem 0.9rem;
    background-color: var(--color-primary-subtle);
    border: 1px solid var(--color-primary-light);
    color: var(--color-primary);
    border-radius: var(--radius-full);
    font-size: 0.85rem;
    font-weight: 600;
    margin-bottom: 1.5rem;
}

.status-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background-color: var(--color-success);
    box-shadow: 0 0 0 3px rgba(46, 125, 50, 0.25);
    animation: pulse 2s infinite;
}

@keyframes pulse {
    0%, 100% { transform: scale(1); opacity: 1; }
    50% { transform: scale(1.2); opacity: 0.7; }
}

.hero__title {
    font-size: clamp(2.2rem, 4.5vw, 3.4rem);
    font-weight: 800;
    line-height: 1.15;
    margin-bottom: 1rem;
    letter-spacing: -0.03em;
}

.text-gradient {
    color: var(--color-primary);
}

.hero__subtitle {
    font-size: 1.15rem;
    font-weight: 600;
    color: var(--color-accent);
    margin-bottom: 1.25rem;
}

.hero__description {
    font-size: 1.05rem;
    color: var(--color-text-muted);
    max-width: 620px;
    line-height: 1.7;
    margin-bottom: 2rem;
}

/* Stats */
.hero__stats {
    display: flex;
    align-items: center;
    gap: 1.5rem;
    padding: 1.25rem 1.5rem;
    background-color: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    box-shadow: var(--shadow-sm);
    margin-bottom: 2.25rem;
    max-width: 640px;
}

.stat-item {
    display: flex;
    flex-direction: column;
}

.stat-number {
    font-family: var(--font-heading);
    font-size: 1.35rem;
    font-weight: 800;
    color: var(--color-primary);
}

.stat-label {
    font-size: 0.75rem;
    color: var(--color-text-muted);
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.04em;
}

.stat-divider {
    width: 1px;
    height: 36px;
    background-color: var(--color-border);
}

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

/* Visual do Hero */
.hero__visual {
    display: flex;
    justify-content: center;
}

.hero__image-card {
    position: relative;
    padding: 1rem;
    background-color: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
    transition: transform var(--transition);
}

.hero__image-card:hover {
    transform: translateY(-4px);
}

.hero__image-wrapper {
    width: 320px;
    height: 360px;
    border-radius: var(--radius);
    overflow: hidden;
    background-color: var(--color-bg-alt);
}

.hero__image {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.hero__floating-badge {
    position: absolute;
    bottom: -15px;
    right: -15px;
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.75rem 1.25rem;
    background-color: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    box-shadow: var(--shadow-md);
}

.hero__floating-badge .badge-icon {
    font-size: 1.4rem;
}

.hero__floating-badge strong {
    display: block;
    font-size: 0.88rem;
    color: var(--color-text);
}

.hero__floating-badge span {
    font-size: 0.75rem;
    color: var(--color-text-muted);
}

/* 5. BOTÕES */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 0.85rem 1.65rem;
    border-radius: var(--radius-sm);
    font-weight: 600;
    font-size: 0.95rem;
    transition: all var(--transition-fast);
    cursor: pointer;
    position: relative;
}

.btn--primary {
    background-color: var(--color-primary);
    color: #ffffff;
    box-shadow: var(--shadow-sm);
}

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

.btn--outline {
    background-color: transparent;
    color: var(--color-text);
    border: 1px solid var(--color-border);
}

.btn--outline:hover {
    border-color: var(--color-primary);
    color: var(--color-primary);
    background-color: var(--color-primary-subtle);
    transform: translateY(-2px);
}

.btn--block {
    width: 100%;
}

.btn.is-loading {
    opacity: 0.8;
    pointer-events: none;
}

.btn.is-loading .btn__text {
    visibility: hidden;
}

.btn.is-loading::after {
    content: '';
    position: absolute;
    width: 20px;
    height: 20px;
    border: 2px solid rgba(255, 255, 255, 0.4);
    border-top-color: #ffffff;
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

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

/* 6. SEÇÕES GERAIS */
.section {
    padding: 5.5rem 0;
}

.section--alt {
    background-color: var(--color-bg-alt);
    border-top: 1px solid var(--color-border-subtle);
    border-bottom: 1px solid var(--color-border-subtle);
}

.section__header {
    margin-bottom: 3.5rem;
}

.section__tag {
    display: inline-block;
    font-family: var(--font-mono);
    font-size: 0.82rem;
    font-weight: 600;
    color: var(--color-accent);
    letter-spacing: 0.08em;
    margin-bottom: 0.5rem;
}

.section__title {
    font-size: clamp(1.8rem, 3.2vw, 2.5rem);
    font-weight: 800;
    margin-bottom: 0.75rem;
}

.section__divider {
    width: 50px;
    height: 3px;
    background-color: var(--color-primary);
    border-radius: var(--radius-full);
    margin-bottom: 1rem;
}

.section__lead {
    font-size: 1.1rem;
    color: var(--color-text-muted);
    max-width: 680px;
}

/* 7. SEÇÃO SOBRE MIM */
.sobre__grid {
    display: grid;
    grid-template-columns: 1.2fr 0.8fr;
    gap: 3.5rem;
    align-items: start;
}

.sobre__content .lead-text {
    font-size: 1.1rem;
    font-weight: 500;
    color: var(--color-text);
    margin-bottom: 1.25rem;
}

.sobre__hobbies-card {
    display: flex;
    gap: 1rem;
    padding: 1.25rem;
    background-color: var(--color-surface);
    border: 1px solid var(--color-border);
    border-left: 4px solid var(--color-accent);
    border-radius: var(--radius);
    margin-top: 1.75rem;
    box-shadow: var(--shadow-sm);
}

.sobre__hobbies-card .hobbies-icon {
    font-size: 1.6rem;
}

.sobre__hobbies-card p {
    margin: 0.25rem 0 0;
    font-size: 0.92rem;
    color: var(--color-text-muted);
}

.sobre__info {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.info-card {
    padding: 1.75rem;
    background-color: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    box-shadow: var(--shadow-sm);
}

.info-card h3 {
    font-size: 1.1rem;
    margin-bottom: 1.25rem;
    color: var(--color-primary);
    border-bottom: 1px solid var(--color-border-subtle);
    padding-bottom: 0.5rem;
}

.info-list {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 0.85rem;
}

.info-list li {
    display: flex;
    flex-direction: column;
}

.info-list__label {
    font-size: 0.78rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--color-text-muted);
    font-weight: 600;
}

.info-list__value {
    font-size: 0.95rem;
    font-weight: 600;
    color: var(--color-text);
}

.tags-cloud {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.tag-pill {
    padding: 0.35rem 0.75rem;
    background-color: var(--color-bg-alt);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-full);
    font-size: 0.82rem;
    font-weight: 500;
    color: var(--color-text);
    transition: all var(--transition-fast);
}

.tag-pill:hover {
    background-color: var(--color-primary);
    color: #ffffff;
    border-color: var(--color-primary);
}

/* 8. PILARES DE ESPECIALIDADE */
.skills-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 1.75rem;
}

.skill-pillar {
    padding: 2.25rem 1.75rem;
    background-color: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    box-shadow: var(--shadow-sm);
    transition: transform var(--transition), box-shadow var(--transition);
}

.skill-pillar:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-md);
}

.pillar__icon {
    font-size: 2.2rem;
    margin-bottom: 1rem;
}

.skill-pillar h3 {
    font-size: 1.25rem;
    margin-bottom: 0.75rem;
}

.skill-pillar p {
    font-size: 0.92rem;
    color: var(--color-text-muted);
    margin-bottom: 1.25rem;
}

.pillar__list {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.pillar__list li {
    font-size: 0.88rem;
    color: var(--color-text);
    position: relative;
    padding-left: 1.25rem;
}

.pillar__list li::before {
    content: '→';
    position: absolute;
    left: 0;
    color: var(--color-primary);
    font-weight: bold;
}

/* 9. PORTFÓLIO & FILTROS */
.portfolio-filter {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem;
    margin-bottom: 2.5rem;
}

.filter-btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.6rem 1.15rem;
    background-color: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-full);
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--color-text-muted);
    transition: all var(--transition-fast);
}

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

.filter-btn.is-active {
    background-color: var(--color-primary);
    color: #ffffff;
    border-color: var(--color-primary);
    box-shadow: var(--shadow-sm);
}

.filter-count {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.15rem 0.45rem;
    background-color: var(--color-bg-alt);
    color: var(--color-text);
    border-radius: var(--radius-full);
    font-size: 0.75rem;
    font-family: var(--font-mono);
}

.filter-btn.is-active .filter-count {
    background-color: rgba(255, 255, 255, 0.25);
    color: #ffffff;
}

.projects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(360px, 1fr));
    gap: 2.25rem;
}

.project-card {
    background-color: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    display: flex;
    flex-direction: column;
    transition: transform var(--transition), box-shadow var(--transition), opacity var(--transition);
}

.project-card:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-hover);
}

.project-card.is-hidden {
    display: none;
}

.project-card__image {
    position: relative;
    width: 100%;
    height: 220px;
    background-color: var(--color-bg-alt);
    overflow: hidden;
}

.project-card__image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform var(--transition-slow);
}

.project-card:hover .project-card__image img {
    transform: scale(1.05);
}

.project-card__badge {
    position: absolute;
    top: 12px;
    right: 12px;
    padding: 0.25rem 0.65rem;
    background-color: rgba(0, 0, 0, 0.75);
    color: #ffffff;
    backdrop-filter: blur(4px);
    border-radius: var(--radius-sm);
    font-size: 0.75rem;
    font-weight: 600;
    letter-spacing: 0.03em;
}

.project-card__badge--live {
    background-color: #1b5e20;
    color: #a7e5ad;
    border: 1px solid rgba(167, 229, 173, 0.4);
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.4);
}

.project-card__body {
    padding: 1.75rem;
    display: flex;
    flex-direction: column;
    flex-grow: 1;
}

.project-card__tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.4rem;
    margin-bottom: 0.85rem;
}

.tag {
    padding: 0.25rem 0.55rem;
    background-color: var(--color-bg-alt);
    border-radius: var(--radius-sm);
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--color-text-muted);
}

.tag--ai    { background-color: var(--badge-ai-bg); color: var(--badge-ai-text); }
.tag--bi    { background-color: var(--badge-bi-bg); color: var(--badge-bi-text); }
.tag--code  { background-color: var(--badge-code-bg); color: var(--badge-code-text); }
.tag--web   { background-color: var(--badge-web-bg); color: var(--badge-web-text); }
.tag--media { background-color: var(--badge-media-bg); color: var(--badge-media-text); }

.project-card h3 {
    font-size: 1.25rem;
    margin-bottom: 0.75rem;
}

.project-card__desc {
    font-size: 0.93rem;
    color: var(--color-text-muted);
    line-height: 1.6;
    margin-bottom: 1.25rem;
}

/* Métricas do Card */
.project-card__metrics {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 0.5rem;
    padding: 0.85rem;
    background-color: var(--color-bg-alt);
    border-radius: var(--radius-sm);
    margin-bottom: 1.25rem;
    text-align: center;
}

.metric-item strong {
    display: block;
    font-family: var(--font-heading);
    font-size: 1.05rem;
    color: var(--color-primary);
}

.metric-item span {
    font-size: 0.72rem;
    color: var(--color-text-muted);
    text-transform: uppercase;
    font-weight: 500;
}

/* Ações / Links do Projeto */
.project-card__actions {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 0.75rem;
    margin-top: auto;
    padding-top: 1rem;
    border-top: 1px solid var(--color-border-subtle);
}

.btn-project-link {
    display: inline-flex;
    align-items: center;
    gap: 0.35rem;
    font-weight: 700;
    font-size: 0.88rem;
    color: var(--color-primary);
    transition: color var(--transition-fast);
}

.btn-project-link:hover {
    color: var(--color-primary-light);
    text-decoration: underline;
}

.btn-project-code {
    font-size: 0.8rem;
    color: var(--color-text-muted);
    font-weight: 500;
    transition: color var(--transition-fast);
}

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

.project-card__note {
    font-size: 0.82rem;
    color: var(--color-text-muted);
    margin-top: auto;
    border-top: 1px dashed var(--color-border);
    padding-top: 0.75rem;
}

/* 10. TIMELINE / TRAJETÓRIA */
.timeline {
    position: relative;
    max-width: 820px;
    margin: 0 auto;
    padding-left: 2rem;
}

.timeline::before {
    content: '';
    position: absolute;
    left: 7px;
    top: 10px;
    bottom: 10px;
    width: 2px;
    background-color: var(--color-border);
}

.timeline__item {
    position: relative;
    margin-bottom: 2.75rem;
}

.timeline__dot {
    position: absolute;
    left: -2rem;
    top: 6px;
    width: 16px;
    height: 16px;
    border-radius: 50%;
    background-color: var(--color-primary);
    border: 3px solid var(--color-surface);
    box-shadow: 0 0 0 2px var(--color-primary);
}

.timeline__content {
    background-color: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    padding: 1.5rem 1.75rem;
    box-shadow: var(--shadow-sm);
}

.timeline__date {
    display: inline-block;
    font-family: var(--font-mono);
    font-size: 0.82rem;
    font-weight: 600;
    color: var(--color-accent);
    margin-bottom: 0.35rem;
}

.timeline__content h3 {
    font-size: 1.2rem;
    margin-bottom: 0.25rem;
}

.timeline__institution {
    font-size: 0.92rem;
    font-weight: 600;
    color: var(--color-primary);
    margin-bottom: 0.75rem;
}

.timeline__content p:last-child {
    margin-bottom: 0;
    font-size: 0.92rem;
    color: var(--color-text-muted);
}

/* 11. CONTATO */
.contact__grid {
    display: grid;
    grid-template-columns: 1.2fr 0.8fr;
    gap: 3.5rem;
}

.contact__form {
    background-color: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    padding: 2.25rem;
    box-shadow: var(--shadow-sm);
}

.form-field {
    margin-bottom: 1.5rem;
}

.form-field label {
    display: block;
    font-size: 0.88rem;
    font-weight: 600;
    margin-bottom: 0.45rem;
    color: var(--color-text);
}

.form-field input,
.form-field textarea {
    width: 100%;
    padding: 0.85rem 1rem;
    font-family: var(--font-body);
    font-size: 0.95rem;
    color: var(--color-text);
    background-color: var(--color-bg);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
    transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.form-field input:focus,
.form-field textarea:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px rgba(66, 76, 30, 0.18);
}

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

.form-error {
    display: block;
    font-size: 0.8rem;
    color: var(--color-error);
    margin-top: 0.35rem;
    min-height: 1.1rem;
}

.form-footnote {
    margin-top: 1rem;
    margin-bottom: 0;
    font-size: 0.8rem;
    color: var(--color-text-muted);
    line-height: 1.4;
    text-align: center;
}

.contact__info {
    display: flex;
    flex-direction: column;
    gap: 1.25rem;
}

.contact__info h3 {
    font-size: 1.35rem;
}

.contact__desc {
    color: var(--color-text-muted);
    font-size: 0.95rem;
}

.contact-list {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.contact-list__item {
    display: flex;
    align-items: center;
    gap: 1.1rem;
    padding: 1.1rem 1.35rem;
    background-color: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    color: var(--color-text);
    box-shadow: var(--shadow-sm);
    transition: transform var(--transition-fast), border-color var(--transition-fast);
}

.contact-list__item:hover {
    transform: translateX(4px);
    border-color: var(--color-primary);
    color: var(--color-primary);
}

.contact-list__icon {
    font-size: 1.5rem;
}

.contact-list__label {
    display: block;
    font-size: 0.78rem;
    text-transform: uppercase;
    color: var(--color-text-muted);
    font-weight: 600;
}

.contact-list__value {
    font-size: 0.95rem;
    font-weight: 600;
}

/* 12. RODAPÉ */
.footer {
    padding: 3rem 0;
    border-top: 1px solid var(--color-border-subtle);
    background-color: var(--color-bg);
}

.footer__container {
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.footer__copy p {
    margin: 0;
    font-size: 0.9rem;
    color: var(--color-text);
}

.footer__sub {
    font-size: 0.82rem !important;
    color: var(--color-text-muted) !important;
}

.footer__backtop {
    font-size: 0.9rem;
    font-weight: 600;
}

/* 13. MODAL */
.modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 2000;
    align-items: center;
    justify-content: center;
}

.modal.is-open {
    display: flex;
}

.modal__overlay {
    position: absolute;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.65);
    backdrop-filter: blur(4px);
}

.modal__content {
    position: relative;
    background-color: var(--color-surface);
    padding: 2.5rem;
    border-radius: var(--radius-lg);
    max-width: 480px;
    width: 90%;
    text-align: center;
    border: 1px solid var(--color-border);
    box-shadow: var(--shadow-lg);
    animation: modalIn 0.25s cubic-bezier(0.16, 1, 0.3, 1);
}

@keyframes modalIn {
    from { opacity: 0; transform: scale(0.92); }
    to { opacity: 1; transform: scale(1); }
}

.modal__icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 60px;
    height: 60px;
    border-radius: 50%;
    background-color: var(--color-primary-subtle);
    color: var(--color-primary);
    font-size: 1.8rem;
    font-weight: bold;
    margin-bottom: 1.25rem;
}

.modal__content h3 {
    font-size: 1.4rem;
    margin-bottom: 0.75rem;
}

.modal__content p {
    color: var(--color-text-muted);
    font-size: 0.95rem;
    margin-bottom: 1.75rem;
}

/* 14. ANIMAÇÕES DE SCROLL (REVEAL) */
.js-reveal-enabled .reveal {
    opacity: 0;
    transform: translateY(28px);
    transition: opacity var(--transition-slow), transform var(--transition-slow);
}

.js-reveal-enabled .reveal.is-visible {
    opacity: 1;
    transform: translateY(0);
}

/* 15. RESPONSIVIDADE (MEDIA QUERIES) */
@media (max-width: 992px) {
    .hero__container {
        grid-template-columns: 1fr;
        gap: 3rem;
        text-align: center;
    }

    .hero__badge {
        margin: 0 auto 1.5rem;
    }

    .hero__description {
        margin: 0 auto 2rem;
    }

    .hero__stats {
        margin: 0 auto 2rem;
        justify-content: center;
    }

    .hero__actions {
        justify-content: center;
    }

    .sobre__grid,
    .contact__grid {
        grid-template-columns: 1fr;
        gap: 2.5rem;
    }
}

@media (max-width: 768px) {
    .nav__toggle {
        display: flex;
    }

    .nav {
        position: absolute;
        top: var(--header-height);
        left: 0;
        width: 100%;
        background-color: var(--color-bg);
        border-bottom: 1px solid var(--color-border);
        padding: 1.5rem;
        box-shadow: var(--shadow-md);
        display: none;
    }

    .nav__list {
        flex-direction: column;
        gap: 1.25rem;
        align-items: flex-start;
    }

    .nav__list.is-open {
        display: flex;
    }

    .nav__toggle.is-active span:nth-child(1) {
        transform: rotate(45deg) translate(6px, 6px);
    }

    .nav__toggle.is-active span:nth-child(2) {
        opacity: 0;
    }

    .nav__toggle.is-active span:nth-child(3) {
        transform: rotate(-45deg) translate(6px, -6px);
    }

    .hero__stats {
        flex-direction: column;
        gap: 1rem;
        align-items: center;
    }

    .stat-divider {
        display: none;
    }

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

    .project-card__actions {
        flex-direction: column;
        align-items: flex-start;
        gap: 0.5rem;
    }

    .footer__container {
        flex-direction: column;
        gap: 1.25rem;
        text-align: center;
    }
}