/* Estilos refinados para aproximar o EducaLab ao padrão visual do Google Antigravity */

:root {
    --educaLab-bg: #070d19;
    --educaLab-ink: #000000;
    --educaLab-panel: rgba(12, 18, 30, 0.72);
    --educaLab-border: rgba(150, 170, 255, 0.18);
    --educaLab-accent: #5ea5ff;
    --educaLab-accent-strong: #4d8dff;
    --educaLab-soft: #f3f6ff;
    --educaLab-surface: #eff5ff;
    --educaLab-muted: rgba(128, 143, 176, 0.85);
    --educaLab-shadow: 0 24px 60px rgba(4, 11, 24, 0.22);
}

body {
    background: var(--educaLab-bg);
    color: var(--educaLab-ink);
}

.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--educaLab-bg);
    color: var(--educaLab-ink);
    overflow: hidden;
    isolation: isolate;
}

.hero-canvas {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    display: block;
    opacity: 0.9;
    pointer-events: none;
    z-index: 0;
}

.hero::before,
.hero::after {
    display: none;
}

.hero::before {
    top: -14rem;
    left: -10rem;
}

.hero::after {
    right: -10rem;
    bottom: -18rem;
}

.hero-content {
    position: relative;
    z-index: 1;
    text-align: center;
    width: min(760px, calc(100% - 2rem));
}

.hero-title {
    font-size: clamp(4rem, 8vw, 8rem);
    line-height: 0.9;
    letter-spacing: 0;
    font-weight: 800;
    margin-bottom: 1rem;
    color: #f3f7ff;
    text-shadow: 0 12px 30px rgba(0, 0, 0, 0.24);
}

.hero-subtitle {
    font-size: clamp(1.1rem, 2vw, 1.75rem);
    letter-spacing: 0.02em;
    color: rgba(228, 236, 255, 0.82);
    margin-bottom: 2.25rem;
}

.hero-buttons {
    display: flex;
    justify-content: center;
    gap: 1rem;
    flex-wrap: wrap;
}

.hero .btn {
    border-radius: 999px;
    min-width: 12rem;
    padding: 1rem 1.6rem;
    font-size: 1rem;
    font-weight: 700;
    letter-spacing: 0.02em;
}

.hero .btn-primary {
    background: linear-gradient(135deg, #dfeaff 0%, #b7d0ff 100%);
    color: #0f172a;
}

.hero .btn-secondary {
    background: rgba(255, 255, 255, 0.04);
    border: 1px solid rgba(255, 255, 255, 0.18);
    color: #edf3ff;
}

.explanation {
    background: linear-gradient(180deg, #f9fbff 0%, #eef3ff 100%);
    padding: 6rem 1.5rem;
}

.explanation-content {
    max-width: 980px;
    margin: 0 auto;
    text-align: center;
}

.explanation-header {
    margin-bottom: 2rem;
}

.eyebrow {
    display: inline-block;
    margin-bottom: 0.75rem;
    padding: 0.4rem 0.8rem;
    border-radius: 999px;
    background: rgba(79, 121, 255, 0.1);
    color: #3c6de8;
    font-size: 0.75rem;
    font-weight: 700;
    letter-spacing: 0.12em;
    text-transform: uppercase;
}

.explanation h2 {
    color: #101827;
    font-size: clamp(2.3rem, 5vw, 4rem);
    line-height: 1.1;
    letter-spacing: -0.06em;
}

.explainer-row {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 1rem;
    flex-wrap: wrap;
    margin: 2.5rem auto 1.75rem;
}

.explanation-pill {
    width: 4rem;
    height: 4rem;
    border: 1px solid rgba(77, 108, 216, 0.18);
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.7);
    color: #0f172a;
    display: grid;
    place-items: center;
    font-size: 1.35rem;
    cursor: pointer;
    transition: transform 0.18s ease, background-color 0.18s ease, box-shadow 0.18s ease, border-color 0.18s ease;
    box-shadow: 0 12px 24px rgba(38, 52, 91, 0.06);
}

.explanation-pill:hover,
.explanation-pill:focus-visible,
.explanation-pill.active {
    background: linear-gradient(135deg, #4c7eff 0%, #2d5ef3 100%);
    border-color: transparent;
    color: white;
    transform: scale(1.12);
    box-shadow: 0 18px 36px rgba(58, 97, 233, 0.25);
}

.explanation-copy {
    min-height: 74px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: clamp(1.05rem, 2vw, 1.6rem);
    line-height: 1.55;
    color: #0f172a;
    opacity: 0;
    transform: translateY(12px);
    transition: opacity 0.35s ease, transform 0.35s ease;
}

.explanation-copy.is-visible {
    opacity: 1;
    transform: translateY(0);
}

.featured-projects {
    background: linear-gradient(180deg, #f6f8ff 0%, #eef3ff 100%);
    padding: 6rem 1.5rem;
}

.featured-projects h2 {
    color: #111827;
    font-size: clamp(2.3rem, 4vw, 3.3rem);
    letter-spacing: -0.06em;
    margin-bottom: 3rem;
}

.featured-grid {
    max-width: 1200px;
    margin: 0 auto;
    display: grid;
    gap: 2.2rem;
}

.featured-item {
    display: grid;
    grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.1fr);
    gap: 2.5rem;
    align-items: center;
    padding: 2rem;
    border-radius: 2rem;
    background: rgba(255, 255, 255, 0.72);
    border: 1px solid rgba(105, 126, 206, 0.14);
    box-shadow: 0 18px 44px rgba(15, 23, 42, 0.05);
    opacity: 0;
    transform: translateY(32px) scale(0.97);
    transition: opacity 0.8s ease, transform 0.8s ease, box-shadow 0.3s ease;
}

.featured-item:nth-child(even) {
    direction: rtl;
}

.featured-item:nth-child(even) > * {
    direction: ltr;
}

.featured-item.is-visible {
    opacity: 1;
    transform: translateY(0) scale(1);
}

.featured-text {
    padding: 0.5rem;
    color: #0f172a;
}

.featured-text h3 {
    color: #101827;
    font-size: clamp(2rem, 2.4vw, 2.7rem);
    letter-spacing: -0.05em;
    margin-bottom: 1rem;
}

.featured-text p {
    color: rgba(31, 41, 55, 0.72);
    line-height: 1.75;
    margin-bottom: 1.5rem;
    font-size: 1.05rem;
}

.featured-image {
    display: flex;
    justify-content: center;
    align-items: center;
}

.project-mockup {
    position: relative;
    width: min(100%, 560px);
    background: linear-gradient(180deg, rgba(16, 22, 36, 0.96), rgba(8, 13, 24, 0.98));
    border: 1px solid rgba(255, 255, 255, 0.06);
    border-radius: 1.75rem;
    box-shadow: var(--educaLab-shadow);
    overflow: hidden;
}

.mockup-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 1.1rem;
    background: rgba(255, 255, 255, 0.04);
    border-bottom: 1px solid rgba(255, 255, 255, 0.06);
}

.window-dots {
    display: flex;
    gap: 0.5rem;
}

.window-dots span {
    width: 0.75rem;
    height: 0.75rem;
    border-radius: 50%;
    display: block;
}

.window-dots span:nth-child(1) { background: #ff5f57; }
.window-dots span:nth-child(2) { background: #ffbd2e; }
.window-dots span:nth-child(3) { background: #28c840; }

.mockup-title {
    color: rgba(201, 214, 255, 0.82);
    font-size: 0.78rem;
    letter-spacing: 0.08em;
    text-transform: uppercase;
}

.mockup-body {
    padding: 1.1rem;
    display: grid;
    gap: 0.9rem;
}

.terminal-card {
    background: rgba(40, 55, 82, 0.6);
    border: 1px solid rgba(139, 155, 214, 0.15);
    border-radius: 1rem;
    padding: 0.85rem 1rem;
}

.terminal-line {
    display: flex;
    align-items: center;
    gap: 0.55rem;
    color: #d9e6ff;
    font-family: "SFMono-Regular", Consolas, monospace;
    font-size: 0.8rem;
    line-height: 1.8;
}

.terminal-line .token {
    color: #7dd3fc;
}

.terminal-line .token-alt {
    color: #a7f3d0;
}

.terminal-line .token-strong {
    color: #fcd34d;
}

.terminal-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 0.9rem;
}

.mini-panel {
    min-height: 7rem;
    border-radius: 1rem;
    border: 1px solid rgba(139, 155, 214, 0.16);
    background: linear-gradient(180deg, rgba(11, 17, 31, 0.8), rgba(21, 31, 49, 0.7));
    padding: 0.8rem;
}

.mini-bar {
    height: 0.5rem;
    border-radius: 999px;
    background: linear-gradient(90deg, rgba(86, 112, 220, 0.9), rgba(86, 214, 255, 0.9));
    margin-bottom: 0.8rem;
}

.mini-rows {
    display: grid;
    gap: 0.5rem;
}

.mini-rows span {
    display: block;
    height: 0.45rem;
    border-radius: 999px;
    background: rgba(165, 182, 240, 0.28);
}

.course-team {
    background: linear-gradient(180deg, #eaf1ff 0%, #f3f7ff 100%);
    padding: 6rem 1.5rem;
}

.course-team-container {
    max-width: 1200px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 2.2rem;
}

.course-team-left,
.course-team-right {
    position: relative;
    overflow: hidden;
    padding: 2.1rem;
    border-radius: 2rem;
    border: 1px solid rgba(115, 135, 209, 0.14);
    background: rgba(255, 255, 255, 0.75);
    box-shadow: 0 18px 42px rgba(15, 23, 42, 0.04);
}

.course-team-left::before,
.course-team-right::before {
    display: none;
}

.team-particle-canvas {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    opacity: 0.9;
    pointer-events: none;
}

.course-team-left > *,
.course-team-right > * {
    position: relative;
    z-index: 1;
}

.course-team-left > .team-particle-canvas,
.course-team-right > .team-particle-canvas {
    position: absolute;
    z-index: 0;
}

.course-team h2 {
    color: #101827;
    font-size: clamp(2.1rem, 3vw, 2.9rem);
    letter-spacing: -0.06em;
}

.team-members {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 1.1rem;
    margin-top: 1.8rem;
}

.member {
    position: relative;
    z-index: 1;
    background: rgba(255,255,255,0.75);
    border: 1px solid rgba(117, 136, 203, 0.12);
    border-radius: 1.4rem;
    padding: 1.2rem 0.9rem;
    text-align: center;
    transition: transform 0.25s ease, box-shadow 0.25s ease;
}

.member:hover {
    transform: translateY(-4px);
    box-shadow: 0 16px 30px rgba(52, 72, 129, 0.1);
}

.member img {
    width: 5.2rem;
    height: 5.2rem;
    border-radius: 50%;
    object-fit: contain;
    margin: 0 auto 0.85rem;
    border: 2px solid rgba(103, 145, 255, 0.8);
}

.member h3 {
    color: #111827;
    font-size: 1rem;
    margin-bottom: 0.25rem;
}

.member p {
    color: rgba(31, 41, 55, 0.7);
    font-size: 0.82rem;
}

.course-team-right p {
    color: rgba(31, 41, 55, 0.78);
    font-size: 1.02rem;
    line-height: 1.75;
    margin-top: 1rem;
}

.course-features {
    margin-top: 1.5rem;
    list-style: none;
    display: grid;
    gap: 0.7rem;
}

.course-features li {
    color: #111827;
    font-weight: 600;
    padding: 0.7rem 0.8rem;
    border-radius: 0.9rem;
    background: rgba(116, 146, 255, 0.06);
    border: 1px solid rgba(116, 146, 255, 0.08);
}

.footer {
    background: linear-gradient(180deg, #0a1121 0%, #040a14 100%);
    color: #eef5ff;
    padding: 4rem 1.5rem 2.5rem;
}

.footer-content {
    max-width: 1180px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    gap: 2rem;
    align-items: flex-start;
}

.footer-column {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
}

.footer-column h4 {
    color: rgba(229, 238, 255, 0.62);
    margin-bottom: 1rem;
    font-size: 0.78rem;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    font-weight: 700;
}

.footer-column ul {
    list-style: none;
    display: grid;
    gap: 0.7rem;
}

.footer-column a {
    color: rgba(234, 241, 255, 0.9);
    text-decoration: none;
    font-weight: 500;
    transition: opacity 0.2s ease;
}

.footer-column a:hover {
    opacity: 0.8;
}

.footer-brand {
    margin-top: 2rem;
    font-size: clamp(4rem, 11vw, 11rem);
    line-height: 0.8;
    letter-spacing: -0.09em;
    font-weight: 900;
    color: #f0f6ff;
}

@keyframes rotate {
    from {
        transform: rotate(0deg);
    }
    to {
        transform: rotate(360deg);
    }
}

@media (max-width: 900px) {
    .featured-item {
        grid-template-columns: 1fr;
    }

    .course-team-container {
        grid-template-columns: 1fr;
    }

    .footer-content {
        flex-direction: column;
    }
}

@media (max-width: 640px) {
    .hero { min-height: 82vh; }

    .hero-buttons {
        flex-direction: column;
    }

    .hero .btn {
        width: 100%;
    }

    .explainer-row {
        gap: 0.8rem;
    }

    .explanation-pill {
        width: 3.25rem;
        height: 3.25rem;
    }

    .featured-item,
    .course-team-left,
    .course-team-right {
        padding: 1.25rem;
    }

    .team-members {
        grid-template-columns: 1fr;
    }

    .member {
        width: 88%;
        justify-self: center;
    }
}