/* ==========================================================================
   Indi-Duino — folha de estilos compartilhada
   Paleta baseada na logomarca oficial.
   ========================================================================== */

:root {
    --navy: #1e2a5e;
    --navy-dark: #151e47;
    --navy-light: #2b3a7a;
    --pink: #e63271;
    --pink-dark: #c51e5a;
    --pink-light: #fde4ec;
    --teal: #26a69a;
    --teal-dark: #1e857b;
    --teal-light: #e0f3f1;
    --orange: #fbb040;
    --orange-light: #fff3e0;
    --text-dark: #1f2937;
    --text-medium: #374151;
    --text-soft: #6b7280;
    --bg-soft: #f8f9fd;
    --border-soft: #e5e7eb;
    --success: #10b981;
    --error: #ef4444;
    --warning: #f59e0b;
}

* { margin: 0; padding: 0; box-sizing: border-box; }

body {
    font-family: 'Poppins', sans-serif;
    color: var(--text-dark);
    line-height: 1.6;
    background: white;
}

.container {
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 1rem;
}

.container-narrow {
    max-width: 720px;
    margin: 0 auto;
    padding: 0 1rem;
}

a { color: var(--pink); }

/* ------------ NAV ------------ */
nav.site-nav {
    position: sticky;
    top: 0;
    z-index: 50;
    background: white;
    border-bottom: 2px solid var(--teal);
    box-shadow: 0 2px 8px rgba(30, 42, 94, 0.08);
}

nav.site-nav .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0.75rem 1rem;
}

.logo { display: flex; align-items: center; gap: 0.6rem; }
.logo img { height: 48px; width: auto; }

.nav-links {
    display: none;
    gap: 1.5rem;
    align-items: center;
}

.nav-links a {
    color: var(--navy);
    text-decoration: none;
    font-weight: 500;
    transition: color 0.3s;
}

.nav-links a:hover,
.nav-links a.active { color: var(--pink); }

.nav-cta {
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    background: var(--pink);
    color: white !important;
    padding: 0.5rem 1rem;
    border-radius: 0.5rem;
    font-size: 0.9rem;
    font-weight: 600;
    transition: background 0.3s;
    text-decoration: none;
}

.nav-cta:hover { background: var(--pink-dark) !important; }

.nav-cta.nav-cta-outline {
    background: transparent;
    color: var(--navy) !important;
    border: 2px solid var(--navy);
}

.nav-cta.nav-cta-outline:hover {
    background: var(--navy);
    color: white !important;
}

@media (min-width: 900px) {
    .nav-links { display: flex; }
}

/* ------------ BOTÕES ------------ */
.btn {
    padding: 0.85rem 2rem;
    border-radius: 0.6rem;
    border: none;
    cursor: pointer;
    font-size: 1rem;
    font-weight: 600;
    font-family: inherit;
    transition: all 0.3s;
    text-decoration: none;
    display: inline-block;
    text-align: center;
}

.btn-primary {
    background: var(--pink);
    color: white;
    box-shadow: 0 4px 14px rgba(230, 50, 113, 0.35);
}
.btn-primary:hover {
    background: var(--pink-dark);
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(230, 50, 113, 0.45);
}

.btn-secondary {
    border: 2px solid var(--navy);
    color: var(--navy);
    background: transparent;
}
.btn-secondary:hover {
    background: var(--navy);
    color: white;
}

.btn-teal {
    background: var(--teal);
    color: white;
}
.btn-teal:hover { background: var(--teal-dark); }

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

.btn-small {
    padding: 0.5rem 1rem;
    font-size: 0.88rem;
}

.btn-danger-text {
    background: transparent;
    border: none;
    color: var(--error);
    font-weight: 600;
    cursor: pointer;
    font-size: 0.9rem;
}
.btn-danger-text:hover { text-decoration: underline; }

/* ------------ TÍTULO DE SEÇÃO ------------ */
.section-title {
    font-size: 2.25rem;
    font-weight: 800;
    text-align: center;
    margin-bottom: 1rem;
    color: var(--navy);
}

.section-title::after {
    content: '';
    display: block;
    width: 80px;
    height: 4px;
    background: linear-gradient(90deg, var(--pink), var(--teal));
    margin: 1rem auto 0;
    border-radius: 2px;
}

.section-intro {
    text-align: center;
    font-size: 1.1rem;
    color: var(--text-medium);
    margin: 1.5rem auto 3rem;
    max-width: 800px;
}

/* ------------ FORMULÁRIOS ------------ */
.form-card {
    background: white;
    border-radius: 1rem;
    padding: 2.5rem;
    box-shadow: 0 8px 30px rgba(30, 42, 94, 0.1);
    border-top: 5px solid var(--pink);
}

.form-card h2 {
    color: var(--navy);
    font-size: 1.75rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
}

.form-card .form-subtitle {
    color: var(--text-medium);
    margin-bottom: 2rem;
    font-size: 0.98rem;
}

.form-group {
    margin-bottom: 1.25rem;
}

.form-row {
    display: grid;
    grid-template-columns: 1fr;
    gap: 1.25rem;
}

@media (min-width: 640px) {
    .form-row.two-cols { grid-template-columns: 1fr 1fr; }
}

.form-group label {
    display: block;
    font-weight: 600;
    color: var(--navy);
    margin-bottom: 0.4rem;
    font-size: 0.92rem;
}

.form-group label .required { color: var(--pink); }

.form-group input[type="text"],
.form-group input[type="email"],
.form-group input[type="tel"],
.form-group input[type="password"],
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 0.7rem 0.9rem;
    border: 2px solid var(--border-soft);
    border-radius: 0.5rem;
    font-size: 0.98rem;
    font-family: inherit;
    color: var(--text-dark);
    transition: border-color 0.2s, box-shadow 0.2s;
    background: white;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--teal);
    box-shadow: 0 0 0 3px rgba(38, 166, 154, 0.15);
}

.form-group textarea { resize: vertical; min-height: 90px; }

.checkbox-group {
    display: flex;
    gap: 0.6rem;
    align-items: flex-start;
    padding: 0.6rem 0.8rem;
    border-radius: 0.5rem;
    border: 2px solid var(--border-soft);
    margin-bottom: 0.6rem;
    background: white;
    cursor: pointer;
    transition: all 0.2s;
}

.checkbox-group:hover { border-color: var(--teal); }

.checkbox-group input[type="checkbox"] {
    margin-top: 0.2rem;
    accent-color: var(--teal);
    width: 18px;
    height: 18px;
    cursor: pointer;
}

.checkbox-group label {
    cursor: pointer;
    color: var(--text-medium);
    font-size: 0.92rem;
    flex: 1;
}

.checkbox-group label strong { color: var(--navy); }

.form-footer {
    text-align: center;
    margin-top: 1.5rem;
    color: var(--text-medium);
    font-size: 0.92rem;
}

.form-footer a { color: var(--pink); font-weight: 600; text-decoration: none; }
.form-footer a:hover { text-decoration: underline; }

/* Mensagens (alerta) */
.alert {
    padding: 0.9rem 1rem;
    border-radius: 0.5rem;
    margin-bottom: 1.25rem;
    font-size: 0.92rem;
    display: none;
}
.alert.show { display: block; }
.alert-success { background: #ecfdf5; color: #065f46; border: 1px solid #a7f3d0; }
.alert-error   { background: #fef2f2; color: #991b1b; border: 1px solid #fecaca; }
.alert-info    { background: var(--teal-light); color: var(--teal-dark); border: 1px solid #99e1d9; }
.alert-warning { background: #fffbeb; color: #92400e; border: 1px solid #fde68a; }

/* ------------ HERO / CTA da página de conta ------------ */
.page-hero {
    background:
        radial-gradient(circle at 10% 20%, rgba(230, 50, 113, 0.08) 0%, transparent 40%),
        radial-gradient(circle at 90% 80%, rgba(38, 166, 154, 0.1) 0%, transparent 40%),
        linear-gradient(135deg, #ffffff 0%, var(--bg-soft) 100%);
    padding: 3rem 1rem;
    text-align: center;
}

.page-hero h1 {
    color: var(--navy);
    font-size: 2rem;
    font-weight: 800;
    margin-bottom: 0.5rem;
}

.page-hero p {
    color: var(--text-medium);
    max-width: 600px;
    margin: 0 auto;
}

/* ------------ ÁREA DO ALUNO ------------ */
.aluno-header {
    background: linear-gradient(135deg, var(--navy) 0%, var(--navy-dark) 100%);
    color: white;
    padding: 2.5rem 1rem 3.5rem;
}

.aluno-header .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 1rem;
    flex-wrap: wrap;
}

.aluno-header h1 {
    font-size: 1.8rem;
    font-weight: 700;
    margin-bottom: 0.25rem;
}

.aluno-header .aluno-subtitle {
    color: #cbd5f5;
    font-size: 0.95rem;
}

.aluno-header .user-badge {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    background: rgba(255,255,255,0.1);
    border-radius: 2rem;
    padding: 0.5rem 1rem 0.5rem 0.5rem;
}

.user-avatar {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: var(--pink);
    color: white;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 1rem;
}

.aluno-section {
    padding: 3rem 1rem;
}

.aluno-section h2 {
    color: var(--navy);
    font-size: 1.6rem;
    font-weight: 700;
    margin-bottom: 1.5rem;
}

.courses-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 1.5rem;
}

@media (min-width: 720px) {
    .courses-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (min-width: 1080px) {
    .courses-grid { grid-template-columns: repeat(3, 1fr); }
}

.course-card {
    background: white;
    border-radius: 1rem;
    overflow: hidden;
    box-shadow: 0 4px 20px rgba(30, 42, 94, 0.08);
    transition: all 0.3s;
    display: flex;
    flex-direction: column;
    text-decoration: none;
    color: inherit;
    border-top: 4px solid var(--teal);
}

.course-card:nth-child(2) { border-top-color: var(--pink); }
.course-card:nth-child(3) { border-top-color: var(--orange); }
.course-card:nth-child(4) { border-top-color: var(--navy); }

.course-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 30px rgba(30, 42, 94, 0.18);
}

.course-thumb {
    aspect-ratio: 16 / 9;
    background: linear-gradient(135deg, var(--teal) 0%, var(--navy) 100%);
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 3rem;
}

.course-card:nth-child(2) .course-thumb { background: linear-gradient(135deg, var(--pink) 0%, var(--navy) 100%); }
.course-card:nth-child(3) .course-thumb { background: linear-gradient(135deg, var(--orange) 0%, var(--pink) 100%); }
.course-card:nth-child(4) .course-thumb { background: linear-gradient(135deg, var(--navy) 0%, var(--teal) 100%); }

.course-body {
    padding: 1.25rem 1.25rem 1.5rem;
    flex: 1;
    display: flex;
    flex-direction: column;
}

.course-body h3 {
    color: var(--navy);
    font-size: 1.15rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
    line-height: 1.3;
}

.course-body .course-desc {
    color: var(--text-medium);
    font-size: 0.9rem;
    margin-bottom: 1rem;
    flex: 1;
}

.course-meta {
    display: flex;
    justify-content: space-between;
    align-items: center;
    color: var(--text-soft);
    font-size: 0.82rem;
    margin-bottom: 0.75rem;
}

.course-meta .pill {
    background: var(--teal-light);
    color: var(--teal-dark);
    padding: 0.2rem 0.6rem;
    border-radius: 2rem;
    font-weight: 600;
    font-size: 0.78rem;
}

.progress-bar {
    width: 100%;
    height: 6px;
    background: var(--border-soft);
    border-radius: 3px;
    overflow: hidden;
}

.progress-bar .progress-fill {
    height: 100%;
    background: linear-gradient(90deg, var(--pink), var(--teal));
    border-radius: 3px;
    transition: width 0.4s;
}

/* ------------ PÁGINA DE AULA ------------ */
.aula-layout {
    display: grid;
    grid-template-columns: 1fr;
    gap: 2rem;
    padding: 2rem 1rem;
    max-width: 1280px;
    margin: 0 auto;
}

@media (min-width: 1024px) {
    .aula-layout { grid-template-columns: 1fr 320px; }
}

.video-wrapper {
    background: #000;
    border-radius: 0.75rem;
    overflow: hidden;
    aspect-ratio: 16 / 9;
    position: relative;
}

.video-wrapper iframe,
.video-wrapper video {
    width: 100%;
    height: 100%;
    border: 0;
}

.video-placeholder {
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    background: linear-gradient(135deg, var(--navy) 0%, var(--pink) 100%);
    text-align: center;
    padding: 2rem;
    flex-direction: column;
    gap: 0.75rem;
}

.video-placeholder .ico { font-size: 3rem; }
.video-placeholder p { opacity: 0.9; }

.aula-main h1 {
    color: var(--navy);
    font-size: 1.75rem;
    font-weight: 800;
    margin: 1.5rem 0 0.5rem;
}

.aula-meta {
    display: flex;
    gap: 1rem;
    align-items: center;
    color: var(--text-soft);
    font-size: 0.88rem;
    margin-bottom: 1.25rem;
    flex-wrap: wrap;
}

.aula-meta .pill-small {
    background: var(--teal-light);
    color: var(--teal-dark);
    padding: 0.2rem 0.65rem;
    border-radius: 2rem;
    font-weight: 600;
    font-size: 0.78rem;
}

.aula-description {
    color: var(--text-medium);
    line-height: 1.8;
    margin-bottom: 1.5rem;
}

.pdf-download {
    background: linear-gradient(135deg, var(--teal-light) 0%, var(--pink-light) 100%);
    border-radius: 0.75rem;
    padding: 1.25rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
    margin-bottom: 2rem;
    flex-wrap: wrap;
}

.pdf-download .pdf-info {
    display: flex;
    align-items: center;
    gap: 0.9rem;
}

.pdf-download .pdf-icon {
    width: 48px;
    height: 48px;
    background: var(--pink);
    color: white;
    border-radius: 0.5rem;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 0.85rem;
}

.pdf-download .pdf-text h4 {
    color: var(--navy);
    margin-bottom: 0.2rem;
    font-size: 1rem;
}

.pdf-download .pdf-text p {
    color: var(--text-medium);
    font-size: 0.85rem;
}

/* Comentários */
.comments-section {
    border-top: 1px solid var(--border-soft);
    padding-top: 1.5rem;
    margin-top: 1rem;
}

.comments-section h3 {
    color: var(--navy);
    font-size: 1.2rem;
    font-weight: 700;
    margin-bottom: 1rem;
}

.comment-form {
    display: flex;
    gap: 0.75rem;
    margin-bottom: 1.5rem;
    align-items: flex-start;
}

.comment-form .user-avatar { flex-shrink: 0; }

.comment-form .comment-input-wrapper {
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.comment-form textarea {
    width: 100%;
    min-height: 70px;
    padding: 0.7rem 0.9rem;
    border: 2px solid var(--border-soft);
    border-radius: 0.5rem;
    font-family: inherit;
    font-size: 0.95rem;
    color: var(--text-dark);
    resize: vertical;
    transition: border-color 0.2s;
}

.comment-form textarea:focus {
    outline: none;
    border-color: var(--teal);
}

.comment-form .comment-actions {
    display: flex;
    justify-content: flex-end;
    gap: 0.5rem;
}

.comment {
    display: flex;
    gap: 0.75rem;
    margin-bottom: 1.25rem;
    padding-bottom: 1.25rem;
    border-bottom: 1px solid var(--border-soft);
}

.comment:last-child { border-bottom: 0; }

.comment .comment-body {
    flex: 1;
    background: var(--bg-soft);
    border-radius: 0.75rem;
    padding: 0.8rem 1rem;
}

.comment .comment-head {
    display: flex;
    justify-content: space-between;
    align-items: baseline;
    gap: 0.5rem;
    margin-bottom: 0.3rem;
    flex-wrap: wrap;
}

.comment .comment-head .author { color: var(--navy); font-weight: 700; font-size: 0.92rem; }
.comment .comment-head .when { color: var(--text-soft); font-size: 0.78rem; }

.comment .comment-text {
    color: var(--text-dark);
    font-size: 0.95rem;
    line-height: 1.55;
    white-space: pre-wrap;
}

.empty-comments {
    text-align: center;
    color: var(--text-soft);
    padding: 1.5rem;
    font-style: italic;
    font-size: 0.95rem;
}

/* ------------ LATERAL (aulas) ------------ */
.aula-sidebar {
    background: white;
    border-radius: 1rem;
    padding: 1.25rem;
    box-shadow: 0 4px 20px rgba(30, 42, 94, 0.06);
    align-self: start;
    position: sticky;
    top: 90px;
}

.aula-sidebar h3 {
    color: var(--navy);
    font-size: 1.05rem;
    font-weight: 700;
    margin-bottom: 0.25rem;
}

.aula-sidebar .course-name {
    color: var(--text-soft);
    font-size: 0.85rem;
    margin-bottom: 1rem;
}

.aula-list { list-style: none; }

.aula-list li a {
    display: flex;
    gap: 0.6rem;
    align-items: center;
    padding: 0.6rem 0.75rem;
    border-radius: 0.5rem;
    color: var(--text-medium);
    text-decoration: none;
    font-size: 0.92rem;
    margin-bottom: 0.25rem;
    transition: all 0.2s;
}

.aula-list li a:hover { background: var(--bg-soft); color: var(--navy); }

.aula-list li a.current {
    background: var(--pink-light);
    color: var(--pink-dark);
    font-weight: 600;
}

.aula-list li a .num {
    width: 26px;
    height: 26px;
    border-radius: 50%;
    background: var(--bg-soft);
    color: var(--navy);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.8rem;
    font-weight: 700;
    flex-shrink: 0;
}

.aula-list li a.current .num { background: var(--pink); color: white; }
.aula-list li a.done .num { background: var(--teal); color: white; }

.back-link {
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    color: var(--pink);
    text-decoration: none;
    font-weight: 600;
    font-size: 0.92rem;
    margin-bottom: 0.5rem;
}

.back-link:hover { color: var(--pink-dark); }

/* ------------ FOOTER ------------ */
footer.site-footer {
    background: var(--navy-dark);
    color: #d1d5db;
    padding: 2.5rem 1rem 1.5rem;
    margin-top: 3rem;
}

footer.site-footer .footer-content {
    display: grid;
    grid-template-columns: 1fr;
    gap: 1.5rem;
    margin-bottom: 1.5rem;
    max-width: 1280px;
    margin-left: auto;
    margin-right: auto;
}

@media (min-width: 768px) {
    footer.site-footer .footer-content { grid-template-columns: 2fr 1fr 1fr; }
}

footer.site-footer img {
    height: 42px;
    background: white;
    padding: 0.3rem 0.5rem;
    border-radius: 0.5rem;
    margin-bottom: 0.75rem;
}

footer.site-footer h4 {
    color: white;
    font-weight: 700;
    margin-bottom: 0.75rem;
    font-size: 0.95rem;
}

footer.site-footer ul { list-style: none; }
footer.site-footer li { margin-bottom: 0.4rem; font-size: 0.88rem; }
footer.site-footer a { color: #d1d5db; text-decoration: none; transition: color 0.3s; }
footer.site-footer a:hover { color: var(--pink); }

footer.site-footer .footer-bottom {
    border-top: 1px solid rgba(255,255,255,0.1);
    padding-top: 1.25rem;
    text-align: center;
    color: #9ca3af;
    font-size: 0.82rem;
    max-width: 1280px;
    margin: 0 auto;
}

/* Utilitários */
.mt-4 { margin-top: 2rem; }
.text-center { text-align: center; }