/* =====================================================================
   detalhe-curso.css
   Dark premium · preto + verde · minimalista
   ===================================================================== */

:root {
    /* --- superfícies --- */
    --curso-bg-base: #07090A;
    --curso-bg-surface: #0F1411;
    --curso-bg-surface-2: #141A17;
    --curso-bg-raised: #181F1B;

    /* --- verde --- */
    --curso-green: #39FF8A;
    --curso-green-soft: #1FB870;
    --curso-green-deep: #0E6B43;
    --curso-green-dim: #16241C;

    /* --- bordas --- */
    --curso-border: rgba(57, 255, 138, 0.14);
    --curso-border-strong: rgba(57, 255, 138, 0.4);

    /* --- texto --- */
    --curso-text: #F3F6F4;
    --curso-text-muted: #93A199;
    --curso-text-faint: #5B665F;

    /* --- tipografia --- */
    --curso-font-display: 'Fraunces', Georgia, serif;
    --curso-font-body: 'Inter', -apple-system, sans-serif;
    --curso-font-mono: 'Space Mono', 'SFMono-Regular', monospace;

    /* --- ritmo --- */
    --curso-radius: 18px;
    --curso-ease: cubic-bezier(0.22, 1, 0.36, 1);
}

/* ===================== BASE ===================== */

.curso-page {
    background: var(--curso-bg-base);
    color: var(--curso-text);
    font-family: var(--curso-font-body);
    overflow-x: hidden;
}

.curso-page .container {
    max-width: 1180px;
}

.curso-page .eyebrow {
    font-family: var(--curso-font-mono);
    font-size: 0.72rem;
    letter-spacing: 0.18em;
    text-transform: uppercase;
    color: var(--curso-green);
    margin-bottom: 1rem;
}

.curso-page .section-title {
    font-family: var(--curso-font-display);
    font-weight: 500;
    font-size: clamp(1.7rem, 2.4vw, 2.4rem);
    color: var(--curso-text);
    letter-spacing: -0.01em;
    margin-bottom: 1.25rem;
}

/* ===================== HERO ===================== */

.curso-hero {
    position: relative;
    padding: 6rem 0 5rem;
    background: var(--curso-bg-base);
    border-bottom: 1px solid var(--curso-border);
    overflow: hidden;
}

.curso-hero__glow {
    position: absolute;
    top: -220px;
    right: -160px;
    width: 620px;
    height: 620px;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(57, 255, 138, 0.16) 0%, rgba(57, 255, 138, 0) 70%);
    pointer-events: none;
}

.curso-hero__grid {
    position: relative;
    display: grid;
    grid-template-columns: 1.05fr 0.95fr;
    gap: 4rem;
    align-items: center;
    z-index: 1;
}

.curso-hero__title {
    font-family: var(--curso-font-display);
    font-weight: 500;
    font-size: clamp(2.2rem, 4vw, 3.4rem);
    line-height: 1.08;
    letter-spacing: -0.015em;
    color: var(--curso-text);
    margin-bottom: 1.25rem;
}

.curso-hero__lead {
    font-size: 1.05rem;
    line-height: 1.7;
    color: var(--curso-text-muted);
    max-width: 46ch;
    margin-bottom: 2.25rem;
}

/* --- spec strip --- */

.spec-strip {
    list-style: none;
    display: flex;
    flex-wrap: wrap;
    gap: 1.75rem;
    padding: 1.4rem 0;
    margin: 0 0 2.5rem;
    border-top: 1px solid var(--curso-border);
    border-bottom: 1px solid var(--curso-border);
}

.spec-strip li {
    display: flex;
    flex-direction: column;
    gap: 0.3rem;
}

.spec-strip__label {
    font-family: var(--curso-font-mono);
    font-size: 0.65rem;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    color: var(--curso-text-faint);
}

.spec-strip__value {
    font-size: 0.95rem;
    font-weight: 500;
    color: var(--curso-text);
}

/* --- cta da hero --- */

.curso-hero__cta {
    display: flex;
    align-items: center;
    gap: 1.75rem;
    flex-wrap: wrap;
}

.price-tag {
    font-family: var(--curso-font-mono);
    display: flex;
    align-items: baseline;
    gap: 0.2rem;
    color: var(--curso-green);
}

.price-tag__currency {
    font-size: 0.95rem;
}

.price-tag__value {
    font-size: 1.6rem;
    font-weight: 700;
}

.price-tag--lg .price-tag__value { font-size: 2.1rem; }
.price-tag--sm .price-tag__value { font-size: 1rem; }

.btn-premium {
    display: inline-flex;
    align-items: center;
    gap: 0.6rem;
    padding: 0.95rem 1.9rem;
    background: var(--curso-green);
    color: #061008;
    font-weight: 600;
    font-size: 0.95rem;
    border-radius: 999px;
    text-decoration: none;
    box-shadow: 0 0 0 0 rgba(57, 255, 138, 0.5);
    transition: transform 0.25s var(--curso-ease), box-shadow 0.25s var(--curso-ease), background 0.25s var(--curso-ease);
}

.btn-premium svg {
    transition: transform 0.25s var(--curso-ease);
}

.btn-premium:hover {
    background: #5CFFA3;
    box-shadow: 0 0 32px 4px rgba(57, 255, 138, 0.35);
    transform: translateY(-1px);
    color: #061008;
}

.btn-premium:hover svg { transform: translateX(3px); }

.btn-premium:focus-visible {
    outline: 2px solid var(--curso-green);
    outline-offset: 3px;
}

.btn-premium--lg { padding: 1.1rem 2.4rem; font-size: 1.02rem; }
.btn-premium--sm { padding: 0.6rem 1.3rem; font-size: 0.85rem; }

/* --- mídia da hero --- */

.curso-hero__media { position: relative; }

.media-frame {
    position: relative;
    border-radius: var(--curso-radius);
    border: 1px solid var(--curso-border-strong);
    background: var(--curso-bg-surface);
    padding: 0.6rem;
    box-shadow: 0 30px 80px -20px rgba(0, 0, 0, 0.6), 0 0 60px -10px rgba(57, 255, 138, 0.12);
}

.media-frame img {
    width: 100%;
    display: block;
    border-radius: calc(var(--curso-radius) - 6px);
    aspect-ratio: 4 / 3;
    object-fit: cover;
}

.status-chip {
    position: absolute;
    bottom: 1.4rem;
    left: 1.4rem;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.45rem 0.9rem;
    border-radius: 999px;
    font-family: var(--curso-font-mono);
    font-size: 0.7rem;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    background: rgba(7, 9, 10, 0.85);
    backdrop-filter: blur(6px);
    border: 1px solid var(--curso-border-strong);
    color: var(--curso-text);
}

.status-chip__dot {
    width: 7px;
    height: 7px;
    border-radius: 50%;
    background: var(--curso-text-faint);
}

.status-chip--ativo .status-chip__dot {
    background: var(--curso-green);
    box-shadow: 0 0 0 0 rgba(57, 255, 138, 0.6);
    animation: curso-pulse 2.2s infinite;
}

.status-chip--inline {
    position: static;
    padding: 0.3rem 0.7rem;
}

@keyframes curso-pulse {
    0%   { box-shadow: 0 0 0 0 rgba(57, 255, 138, 0.55); }
    70%  { box-shadow: 0 0 0 8px rgba(57, 255, 138, 0); }
    100% { box-shadow: 0 0 0 0 rgba(57, 255, 138, 0); }
}

/* ===================== SOBRE + FICHA TÉCNICA ===================== */

.curso-about {
    padding: 5.5rem 0;
    background: var(--curso-bg-base);
    border-bottom: 1px solid var(--curso-border);
}

.curso-about__grid {
    display: grid;
    grid-template-columns: 1.4fr 1fr;
    gap: 3.5rem;
    align-items: start;
}

.curso-about__body {
    font-size: 1.02rem;
    line-height: 1.85;
    color: var(--curso-text-muted);
    max-width: 62ch;
}

.tech-sheet {
    background: var(--curso-bg-surface);
    border: 1px solid var(--curso-border);
    border-radius: var(--curso-radius);
    padding: 2rem 2rem 1.4rem;
}

.tech-sheet__title {
    font-family: var(--curso-font-mono);
    font-size: 0.7rem;
    letter-spacing: 0.14em;
    text-transform: uppercase;
    color: var(--curso-green);
    margin-bottom: 1.4rem;
}

.tech-sheet__list { margin: 0; }

.tech-sheet__row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 1rem;
    padding: 0.85rem 0;
    border-top: 1px solid var(--curso-border);
}

.tech-sheet__row:first-child { border-top: none; }

.tech-sheet__row dt {
    font-family: var(--curso-font-mono);
    font-size: 0.78rem;
    color: var(--curso-text-faint);
}

.tech-sheet__row dd {
    margin: 0;
    font-size: 0.92rem;
    font-weight: 500;
    text-align: right;
    color: var(--curso-text);
}

/* ===================== CTA FINAL ===================== */

.curso-cta {
    padding: 6rem 0;
    background:
        radial-gradient(circle at 50% 0%, rgba(57, 255, 138, 0.08), transparent 60%),
        var(--curso-bg-base);
}

.curso-cta__box {
    text-align: center;
    max-width: 640px;
    margin: 0 auto;
}

.curso-cta__box .section-title { margin-bottom: 2rem; }

.curso-cta__row {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 2rem;
    flex-wrap: wrap;
}

/* ===================== BARRA FLUTUANTE ===================== */

.sticky-bar {
    position: fixed;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: 40;
    background: rgba(10, 13, 11, 0.92);
    backdrop-filter: blur(10px);
    border-top: 1px solid var(--curso-border-strong);
    transform: translateY(100%);
    opacity: 0;
    transition: transform 0.35s var(--curso-ease), opacity 0.35s var(--curso-ease);
}

.sticky-bar.is-visible {
    transform: translateY(0);
    opacity: 1;
}

.sticky-bar__inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1.5rem;
    padding: 0.85rem 0;
}

.sticky-bar__title {
    font-family: var(--curso-font-display);
    font-size: 1rem;
    color: var(--curso-text);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.sticky-bar__cta {
    display: flex;
    align-items: center;
    gap: 1.25rem;
    flex-shrink: 0;
}

/* ===================== ACESSIBILIDADE ===================== */

@media (prefers-reduced-motion: reduce) {
    .btn-premium,
    .btn-premium svg,
    .sticky-bar {
        transition: none;
    }
    .status-chip--ativo .status-chip__dot {
        animation: none;
    }
}

/* ===================== RESPONSIVO ===================== */

@media (max-width: 991px) {
    .curso-hero__grid,
    .curso-about__grid {
        grid-template-columns: 1fr;
        gap: 3rem;
    }

    .curso-hero__media { order: -1; }

    .media-frame img { aspect-ratio: 16 / 10; }
}

@media (max-width: 575px) {
    .curso-hero { padding: 4rem 0 3rem; }
    .curso-about,
    .curso-cta { padding: 4rem 0; }

    .curso-hero__cta { gap: 1.25rem; }

    .sticky-bar__title { display: none; }

    .curso-cta__row { gap: 1.25rem; }
}