/* ============================================================
   ALFA CURSOS DE ELÉTRICA E TREINAMENTOS
   estilo_curso.css — public_html/assets/css/
   Referenciado por: public_html/curso/index.php
============================================================ */

/* ── VARIÁVEIS ── */
:root {
    --amarelo:       #F5C000;
    --amarelo-escuro:#D4A600;
    --preto:         #0A0A0A;
    --preto-medio:   #111111;
    --preto-card:    #161616;
    --azul:          #1A3A6B;
    --azul-claro:    #2255A4;
    --branco:        #FFFFFF;
    --cinza:         #8A8A8A;
    --cinza-borda:   #2A2A2A;
}

/* ── RESET / BASE ── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html  { scroll-behavior: smooth; }
body  {
    font-family: 'Barlow', sans-serif;
    background: var(--preto);
    color: var(--branco);
    overflow-x: hidden;
}

/* ── TIPOGRAFIA ── */
.font-display { font-family: 'Barlow Condensed', sans-serif; }

/* ── SCROLLBAR ── */
::-webkit-scrollbar       { width: 6px; }
::-webkit-scrollbar-track { background: var(--preto); }
::-webkit-scrollbar-thumb { background: var(--cinza-borda); border-radius: 3px; }

/* ======================================================
   SCROLL ANIMATIONS
====================================================== */
.reveal {
    opacity: 0;
    transform: translateY(40px);
    transition: opacity .7s ease, transform .7s ease;
}
.reveal.from-left  { transform: translateX(-40px); }
.reveal.from-right { transform: translateX( 40px); }
.reveal.visible    { opacity: 1; transform: translate(0, 0); }

.reveal-delay-1 { transition-delay: .10s; }
.reveal-delay-2 { transition-delay: .20s; }
.reveal-delay-3 { transition-delay: .30s; }
.reveal-delay-4 { transition-delay: .40s; }

/* ======================================================
   NAVBAR
====================================================== */
#navbar {
    position: fixed;
    top: 0; left: 0; right: 0;
    z-index: 1000;
    background: rgba(10,10,10,.85);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--cinza-borda);
    transition: background .3s;
}
#navbar.scrolled { background: rgba(10,10,10,.97); }

.navbar-inner {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 64px;
}

.navbar-logo {
    display: flex;
    align-items: center;
    gap: 10px;
    text-decoration: none;
}
.navbar-logo-icon {
    background: var(--amarelo);
    width: 36px; height: 36px;
    border-radius: 4px;
    display: flex; align-items: center; justify-content: center;
    flex-shrink: 0;
}
.navbar-brand {
    font-family: 'Barlow Condensed', sans-serif;
    font-size: 1.2rem;
    font-weight: 800;
    letter-spacing: .05em;
    color: var(--branco);
}
.navbar-brand span { color: var(--amarelo); }

.navbar-links {
    display: flex;
    gap: 24px;
    align-items: center;
}
.navbar-link {
    color: var(--cinza);
    text-decoration: none;
    font-size: .9rem;
    font-weight: 500;
    transition: color .2s;
}
.navbar-link:hover { color: var(--branco); }

/* ======================================================
   BOTÕES
====================================================== */
.btn-primary {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: var(--amarelo);
    color: var(--preto);
    font-family: 'Barlow Condensed', sans-serif;
    font-weight: 800;
    font-size: 1.1rem;
    letter-spacing: .05em;
    text-transform: uppercase;
    padding: 16px 32px;
    border-radius: 4px;
    text-decoration: none;
    border: none;
    cursor: pointer;
    transition: background .2s, transform .2s, box-shadow .2s;
    box-shadow: 0 4px 20px rgba(245,192,0,.3);
}
.btn-primary:hover {
    background: var(--amarelo-escuro);
    transform: translateY(-2px);
    box-shadow: 0 8px 30px rgba(245,192,0,.4);
}
.btn-primary.sm { font-size: .9rem; padding: 10px 22px; }
.btn-primary.full { width: 100%; justify-content: center; }

.btn-outline {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    border: 1px solid var(--cinza-borda);
    color: var(--branco);
    font-family: 'Barlow Condensed', sans-serif;
    font-weight: 700;
    font-size: 1rem;
    letter-spacing: .05em;
    text-transform: uppercase;
    padding: 16px 28px;
    border-radius: 4px;
    text-decoration: none;
    transition: border-color .2s;
}
.btn-outline:hover { border-color: var(--amarelo); }

/* ======================================================
   BADGE / LABELS
====================================================== */
.badge {
    display: inline-block;
    background: rgba(245,192,0,.15);
    border: 1px solid rgba(245,192,0,.4);
    color: var(--amarelo);
    font-family: 'Barlow Condensed', sans-serif;
    font-weight: 700;
    font-size: .75rem;
    letter-spacing: .15em;
    text-transform: uppercase;
    padding: 6px 14px;
    border-radius: 2px;
}

.tag-popular {
    background: var(--amarelo);
    color: var(--preto);
    font-family: 'Barlow Condensed', sans-serif;
    font-weight: 800;
    font-size: .7rem;
    letter-spacing: .15em;
    text-transform: uppercase;
    padding: 4px 12px;
    border-radius: 2px;
    display: inline-block;
    margin-bottom: 16px;
}

.tag-turma {
    display: inline-block;
    background: rgba(245,192,0,.12);
    color: var(--amarelo);
    font-family: 'Barlow Condensed', sans-serif;
    font-weight: 700;
    font-size: .8rem;
    letter-spacing: .1em;
    text-transform: uppercase;
    padding: 4px 10px;
    border-radius: 2px;
    margin: 8px 0 20px;
}

/* ======================================================
   SECTION DIVIDER
====================================================== */
.section-divider {
    width: 60px;
    height: 4px;
    background: var(--amarelo);
    border-radius: 2px;
    margin: 12px auto 24px;
}
.section-divider.left { margin-left: 0; }

/* ======================================================
   HERO
====================================================== */
#hero {
    min-height: 100vh;
    background:
        linear-gradient(135deg, rgba(10,10,10,.92) 0%, rgba(26,58,107,.7) 100%),
        repeating-linear-gradient(
            45deg,
            transparent, transparent 40px,
            rgba(245,192,0,.03) 40px, rgba(245,192,0,.03) 41px
        );
    position: relative;
    overflow: hidden;
}
#hero::before {
    content: '';
    position: absolute;
    top: -200px; right: -200px;
    width: 600px; height: 600px;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(245,192,0,.12) 0%, transparent 70%);
    pointer-events: none;
}

.hero-inner {
    max-width: 1200px;
    margin: 0 auto;
    padding: 100px 20px 80px;
    display: flex;
    flex-direction: column;
    align-items: center;
}

.hero-title {
    font-size: clamp(2.8rem, 8vw, 5.5rem);
    font-weight: 900;
    line-height: .95;
    margin: 20px 0;
    text-transform: uppercase;
}
.hero-title span { color: var(--amarelo); }

.hero-subtitle {
    font-size: clamp(1rem, 2.5vw, 1.25rem);
    color: #AAA;
    max-width: 600px;
    margin: 0 auto 32px;
    line-height: 1.6;
}

.hero-ctas {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    justify-content: center;
    margin-bottom: 48px;
}

/* Stats bar */
.stats-bar {
    display: flex;
    flex-wrap: wrap;
    gap: 2px;
    justify-content: center;
    border: 1px solid var(--cinza-borda);
    border-radius: 8px;
    overflow: hidden;
    width: 100%;
    max-width: 700px;
    margin-top: 48px;
}
.stat-item {
    flex: 1;
    min-width: 140px;
    padding: 20px 16px;
    text-align: center;
}
.stat-item:nth-child(even) { background: var(--preto-medio); }
.stat-item:nth-child(odd)  { background: var(--preto-card); }
.stat-num   { font-family: 'Barlow Condensed', sans-serif; font-size: 2rem; font-weight: 900; color: var(--amarelo); }
.stat-label { font-size: .8rem; color: var(--cinza); margin-top: 4px; text-transform: uppercase; letter-spacing: .08em; }

/* ======================================================
   VIDEO
====================================================== */
.video-wrapper {
    position: relative;
    padding-bottom: 56.25%;
    height: 0;
    overflow: hidden;
    border-radius: 8px;
    border: 2px solid var(--cinza-borda);
    width: 100%;
    max-width: 800px;
}
.video-wrapper iframe {
    position: absolute;
    top: 0; left: 0;
    width: 100%; height: 100%;
    border: none;
}
.video-caption {
    text-align: center;
    font-size: .85rem;
    color: var(--cinza);
    margin-top: 10px;
}

/* ======================================================
   STRIPE DE DESTAQUE
====================================================== */
.stripe-section {
    background: linear-gradient(90deg, var(--amarelo) 0%, var(--amarelo-escuro) 100%);
}
.stripe-inner {
    max-width: 1200px;
    margin: 0 auto;
    padding: 18px 20px;
    display: flex;
    flex-wrap: wrap;
    gap: 16px;
    align-items: center;
    justify-content: center;
}
.stripe-item {
    font-family: 'Barlow Condensed', sans-serif;
    font-weight: 700;
    font-size: 1rem;
    color: var(--preto);
    letter-spacing: .04em;
}

/* ======================================================
   MÓDULOS
====================================================== */
#modulos { padding: 80px 20px; }
.modulos-inner { max-width: 1200px; margin: 0 auto; }

.modulos-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 24px;
}

.modulo-card {
    background: var(--preto-card);
    border: 1px solid var(--cinza-borda);
    border-top: 3px solid var(--amarelo);
    border-radius: 6px;
    padding: 28px 24px 24px;
    position: relative;
    transition: border-top-color .3s, transform .3s;
}
.modulo-card:hover {
    border-top-color: var(--azul-claro);
    transform: translateY(-4px);
}
.modulo-numero {
    font-family: 'Barlow Condensed', sans-serif;
    font-size: 4rem;
    font-weight: 900;
    color: rgba(245,192,0,.08);
    line-height: 1;
    position: absolute;
    top: 12px; right: 16px;
    user-select: none;
}
.modulo-tag {
    font-family: 'Barlow Condensed', sans-serif;
    font-size: .7rem;
    font-weight: 700;
    letter-spacing: .15em;
    text-transform: uppercase;
    color: var(--amarelo);
}
.modulo-titulo {
    font-family: 'Barlow Condensed', sans-serif;
    font-size: 1.4rem;
    font-weight: 800;
    text-transform: uppercase;
    margin: 6px 0 16px;
    line-height: 1.2;
}
.modulo-icon { font-size: 1.8rem; margin-bottom: 12px; }

/* Tópicos */
.topico-list { list-style: none; }
.topico-item {
    display: flex;
    align-items: flex-start;
    gap: 10px;
    padding: 8px 0;
    border-bottom: 1px solid rgba(255,255,255,.05);
    font-size: .95rem;
    color: #CCC;
}
.topico-item:last-child { border-bottom: none; }
.topico-dot {
    width: 8px; height: 8px;
    border-radius: 50%;
    background: var(--amarelo);
    margin-top: 6px;
    flex-shrink: 0;
}

/* ======================================================
   TURMAS
====================================================== */
#turmas { padding: 80px 20px; background: var(--preto-medio); }
.turmas-inner { max-width: 1200px; margin: 0 auto; }

.turmas-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 24px;
    max-width: 900px;
    margin: 0 auto;
}

.turma-card {
    background: var(--preto-card);
    border: 1px solid var(--cinza-borda);
    border-radius: 8px;
    padding: 32px 24px;
    text-align: center;
    transition: transform .3s, border-color .3s;
}
.turma-card:hover { transform: translateY(-6px); border-color: var(--amarelo); }
.turma-card.destaque { border-color: var(--amarelo); }

.turma-icon { font-size: 2.5rem; margin-bottom: 8px; }
.turma-nome {
    font-family: 'Barlow Condensed', sans-serif;
    font-size: 1.5rem;
    font-weight: 900;
    text-transform: uppercase;
}

.turma-detalhe {
    display: flex;
    gap: 10px;
    align-items: center;
    text-align: left;
    margin-bottom: 12px;
}
.turma-detalhe-emoji { font-size: 1.1rem; flex-shrink: 0; }
.turma-detalhe-key   { font-size: .75rem; color: var(--cinza); text-transform: uppercase; letter-spacing: .1em; }
.turma-detalhe-val   { font-weight: 600; font-size: .95rem; }
.turma-detalhes      { display: flex; flex-direction: column; gap: 0; margin: 8px 0 0; }

/* ======================================================
   FORMULÁRIO
====================================================== */
#inscricao { padding: 80px 20px; }

.form-wrapper {
    background: var(--preto-card);
    border: 1px solid var(--cinza-borda);
    border-radius: 10px;
    padding: clamp(24px, 5vw, 40px);
    max-width: 640px;
    margin: 0 auto;
}

.form-grid { display: grid; gap: 20px; }

.form-label {
    display: block;
    font-family: 'Barlow Condensed', sans-serif;
    font-weight: 700;
    font-size: .85rem;
    letter-spacing: .1em;
    text-transform: uppercase;
    color: var(--cinza);
    margin-bottom: 6px;
}

.form-input {
    width: 100%;
    background: #1A1A1A;
    border: 1px solid var(--cinza-borda);
    border-radius: 4px;
    color: var(--branco);
    font-family: 'Barlow', sans-serif;
    font-size: 1rem;
    padding: 14px 16px;
    outline: none;
    transition: border-color .2s;
    appearance: none;
    -webkit-appearance: none;
}
.form-input:focus    { border-color: var(--amarelo); }
.form-input::placeholder { color: var(--cinza); }

.form-select-wrap { position: relative; }
.form-select-wrap::after {
    content: '▾';
    position: absolute;
    right: 14px; top: 50%;
    transform: translateY(-50%);
    color: var(--amarelo);
    pointer-events: none;
    font-size: 1rem;
}

.form-notice {
    background: rgba(245,192,0,.06);
    border: 1px solid rgba(245,192,0,.2);
    border-radius: 4px;
    padding: 14px 16px;
    font-size: .85rem;
    color: #AAA;
    line-height: 1.5;
}

.form-footer-note {
    text-align: center;
    font-size: .82rem;
    color: var(--cinza);
}

/* Alerta de erro */
.alert-erro {
    background: rgba(220,38,38,.15);
    border: 1px solid rgba(220,38,38,.4);
    color: #FCA5A5;
    border-radius: 4px;
    padding: 14px 16px;
    margin-bottom: 16px;
    font-size: .95rem;
}

/* ======================================================
   FAQ
====================================================== */
#faq { padding: 60px 20px; background: var(--preto-medio); }
.faq-inner { max-width: 800px; margin: 0 auto; }

.faq-item {
    border-bottom: 1px solid var(--cinza-borda);
    cursor: pointer;
}
.faq-item summary {
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-family: 'Barlow Condensed', sans-serif;
    font-size: 1.2rem;
    font-weight: 700;
    text-transform: uppercase;
    padding: 20px 0;
    cursor: pointer;
    outline: none;
    list-style: none;
}
.faq-item summary::-webkit-details-marker { display: none; }
.faq-arrow {
    color: var(--amarelo);
    font-size: 1.5rem;
    transition: transform .3s;
    flex-shrink: 0;
    margin-left: 16px;
}
.faq-item[open] .faq-arrow { transform: rotate(45deg); }
.faq-body {
    color: var(--cinza);
    margin-top: 0;
    padding-bottom: 20px;
    line-height: 1.7;
    font-size: 1rem;
}

/* ======================================================
   RODAPÉ
====================================================== */
footer {
    background: #050505;
    border-top: 1px solid var(--cinza-borda);
    padding: 48px 20px 24px;
}
.footer-inner {
    max-width: 1200px;
    margin: 0 auto;
}
.footer-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 40px;
    margin-bottom: 40px;
}
.footer-logo-row {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 16px;
}
.footer-logo-icon {
    background: var(--amarelo);
    width: 36px; height: 36px;
    border-radius: 4px;
    display: flex; align-items: center; justify-content: center;
    flex-shrink: 0;
}
.footer-brand {
    font-family: 'Barlow Condensed', sans-serif;
    font-size: 1.1rem;
    font-weight: 800;
}
.footer-brand span { color: var(--amarelo); }
.footer-desc { color: var(--cinza); font-size: .9rem; line-height: 1.6; }

.footer-heading {
    font-family: 'Barlow Condensed', sans-serif;
    font-size: 1rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: .1em;
    margin-bottom: 14px;
    color: var(--amarelo);
}
.footer-address { font-style: normal; }
.footer-address p { color: var(--cinza); font-size: .9rem; line-height: 1.8; }
.footer-address a { color: var(--branco); text-decoration: none; font-weight: 600; }
.footer-hours    { color: var(--cinza); font-size: .9rem; line-height: 2; }

.footer-bottom {
    border-top: 1px solid var(--cinza-borda);
    padding-top: 20px;
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    justify-content: space-between;
    align-items: center;
}
.footer-copy { color: var(--cinza); font-size: .8rem; }

/* ======================================================
   WHATSAPP FLUTUANTE
====================================================== */
#whatsapp-btn {
    position: fixed;
    bottom: 24px; right: 24px;
    z-index: 999;
    background: #25D366;
    width: 60px; height: 60px;
    border-radius: 50%;
    display: flex; align-items: center; justify-content: center;
    box-shadow: 0 4px 20px rgba(37,211,102,.4);
    transition: transform .2s, box-shadow .2s;
    text-decoration: none;
}
#whatsapp-btn:hover {
    transform: scale(1.1);
    box-shadow: 0 8px 30px rgba(37,211,102,.5);
}

/* ======================================================
   SECTION HEADER UTILITÁRIO
====================================================== */
.section-header { text-align: center; margin-bottom: 48px; }
.section-title {
    font-family: 'Barlow Condensed', sans-serif;
    font-size: clamp(2rem, 5vw, 3.2rem);
    font-weight: 900;
    text-transform: uppercase;
    margin-top: 12px;
}
.section-title span { color: var(--amarelo); }
.section-subtitle { color: var(--cinza); margin-top: 12px; font-size: 1rem; }

/* ======================================================
   RESPONSIVIDADE
====================================================== */

/* Oculta links do menu em telas muito pequenas */
@media (max-width: 520px) {
    .navbar-links a:not(.btn-primary) { display: none; }
    .hero-title { font-size: clamp(2.4rem, 11vw, 4rem); }
    .btn-primary, .btn-outline { font-size: 1rem; padding: 14px 20px; }
}

@media (max-width: 768px) {
    .modulos-grid  { grid-template-columns: 1fr; }
    .turmas-grid   { grid-template-columns: 1fr; }
    .footer-grid   { grid-template-columns: 1fr; gap: 28px; }
    .footer-bottom { flex-direction: column; text-align: center; }
    .stats-bar     { border-radius: 6px; }
    .stat-item     { min-width: calc(50% - 1px); }
}