/* ================================
   RESET & BASE
=================================== */

*,
*::before,
*::after {
    box-sizing: border-box;
}

html, body {
    margin: 0;
    padding: 0;
    font-family: "Inter", system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
    background-color: #f5f5f7;
    color: #111827;
}

img {
    max-width: 100%;
    display: block;
}

a {
    color: inherit;
    text-decoration: none;
}

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

input, select, textarea {
    font-family: inherit;
    font-size: 0.95rem;
}

/* ================================
   TOKENS / VARIÁVEIS
=================================== */

:root {
    --color-primary: #FE5412;
    --color-primary-soft: #FFE1D3;
    --color-primary-strong: #E14608;
    --color-bg: #f5f5f7;
    --color-surface: #ffffff;
    --color-border: #e5e7eb;
    --color-border-strong: #d1d5db;
    --color-text-main: #111827;
    --color-text-muted: #6b7280;
    --color-success: #16a34a;
    --color-warning: #f59e0b;
    --color-danger: #dc2626;
    --radius-sm: 0.375rem;
    --radius-md: 0.75rem;
    --radius-lg: 1rem;
    --shadow-soft: 0 4px 12px rgba(15, 23, 42, 0.08);
    --shadow-subtle: 0 1px 3px rgba(15, 23, 42, 0.06);
}

/* ================================
   LAYOUT PRINCIPAL (ADMIN)
=================================== */

.app-shell {
    display: flex;
    min-height: 100vh;
    background-color: var(--color-bg);
}

.app-header {
    position: sticky;
    top: 0;
    z-index: 40;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0.75rem 1.25rem;
    background-color: var(--color-surface);
    border-bottom: 1px solid var(--color-border);
    box-shadow: var(--shadow-subtle);
}

.app-header__left {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.app-logo-badge {
    width: 2.5rem;
    height: 2.5rem;
    border-radius: 0.9rem;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--color-primary), var(--color-primary-strong));
    color: #fff;
    box-shadow: var(--shadow-soft);
}

.app-header__title {
    font-size: 1.25rem;
    font-weight: 700;
}

.app-header__right {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.sidebar {
    width: 260px;
    background-color: var(--color-surface);
    border-right: 1px solid var(--color-border);
    min-height: calc(100vh - 56px);
    position: sticky;
    top: 56px;
    padding: 1rem 0.75rem;
    box-shadow: 6px 0 18px rgba(15, 23, 42, 0.06);
}

.sidebar__section-title {
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--color-text-muted);
    margin: 0.75rem 0.75rem 0.35rem;
}

.sidebar__nav {
    list-style: none;
    margin: 0;
    padding: 0;
}

.sidebar__link {
    display: flex;
    align-items: center;
    gap: 0.6rem;
    padding: 0.55rem 0.75rem;
    border-radius: 0.7rem;
    font-size: 0.9rem;
    color: var(--color-text-muted);
    transition: background-color 0.15s ease, color 0.15s ease, box-shadow 0.15s ease;
}

.sidebar__link:hover {
    background-color: #f3f4f6;
    color: var(--color-text-main);
}

.sidebar__link--active {
    background-color: var(--color-primary-soft);
    color: var(--color-primary-strong);
    font-weight: 600;
    box-shadow: 0 0 0 1px rgba(254, 84, 18, 0.2);
}

.app-content {
    flex: 1;
    padding: 1.25rem 1.5rem 2rem;
    max-width: 1600px;
    width: 100%;
    margin: 0 auto;
}

.page-header {
    display: flex;
    flex-wrap: wrap;
    justify-content: space-between;
    gap: 0.75rem;
    align-items: center;
    margin-bottom: 1.25rem;
}

.page-title {
    font-size: 1.1rem;
    font-weight: 600;
}

.page-subtitle {
    font-size: 0.9rem;
    color: var(--color-text-muted);
}

/* ================================
   LAYOUT PROFESSOR (MENU TOP)
=================================== */

.prof-shell {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

.prof-topnav {
    display: flex;
    align-items: center;
    justify-content: space-between;
    background-color: var(--color-surface);
    border-bottom: 1px solid var(--color-border);
    padding: 0.75rem 1.25rem;
    box-shadow: var(--shadow-subtle);
}

.prof-topnav__menu {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.prof-topnav__link {
    padding: 0.35rem 0.75rem;
    border-radius: 999px;
    font-size: 0.9rem;
    color: var(--color-text-muted);
}

.prof-topnav__link--active {
    background-color: var(--color-primary-soft);
    color: var(--color-primary-strong);
    font-weight: 600;
}

.prof-content {
    flex: 1;
    padding: 1.25rem 1.5rem 2rem;
    max-width: 1600px;
    width: 100%;
    margin: 0 auto;
}

/* ================================
   CARDS / SUMMARY
=================================== */

.card {
    background-color: var(--color-surface);
    border-radius: var(--radius-lg);
    border: 1px solid var(--color-border);
    box-shadow: var(--shadow-subtle);
    padding: 1rem 1.1rem;
}

.card__header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 0.5rem;
}

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

.card__subtitle {
    font-size: 0.8rem;
    color: var(--color-text-muted);
}

.summary-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(210px, 1fr));
    gap: 0.85rem;
}

.summary-card {
    background-color: var(--color-surface);
    border-radius: var(--radius-lg);
    padding: 0.9rem 1rem;
    border: 1px solid var(--color-border);
    box-shadow: var(--shadow-subtle);
    display: flex;
    flex-direction: column;
    gap: 0.35rem;
}

.summary-card__label {
    font-size: 0.8rem;
    color: var(--color-text-muted);
    text-transform: uppercase;
    letter-spacing: 0.08em;
}

.summary-card__value {
    font-size: 1.4rem;
    font-weight: 700;
}

.summary-card__hint {
    font-size: 0.8rem;
    color: var(--color-text-muted);
}

/* ================================
   BOTÕES
=================================== */

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.4rem;
    padding: 0.4rem 0.95rem;
    border-radius: 999px;
    font-size: 0.9rem;
    border: 1px solid transparent;
    background-color: transparent;
    color: var(--color-text-main);
    transition: background-color 0.15s ease, color 0.15s ease, box-shadow 0.15s ease, border-color 0.15s ease;
}

.btn-primary {
    background-color: var(--color-primary);
    border-color: var(--color-primary);
    color: #fff;
    box-shadow: 0 6px 12px rgba(254, 84, 18, 0.33);
}

.btn-primary:hover {
    background-color: var(--color-primary-strong);
}

.btn-secondary {
    background-color: #f3f4f6;
    border-color: var(--color-border);
    color: var(--color-text-main);
}

.btn-secondary:hover {
    background-color: #e5e7eb;
}

.btn-danger {
    background-color: var(--color-danger);
    border-color: var(--color-danger);
    color: #fff;
}

.btn-danger:hover {
    background-color: #b91c1c;
}

.btn-ghost {
    background-color: transparent;
    border-color: transparent;
    color: var(--color-text-muted);
}

.btn-ghost:hover {
    background-color: #f3f4f6;
}

/* ================================
   FORMULÁRIOS
=================================== */

.form-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(230px, 1fr));
    gap: 0.85rem 1rem;
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
    margin-bottom: 0.5rem;
}

.label {
    font-size: 0.8rem;
    font-weight: 500;
    color: var(--color-text-muted);
}

.input,
.select,
.textarea {
    border-radius: var(--radius-sm);
    border: 1px solid var(--color-border);
    padding: 0.45rem 0.6rem;
    font-size: 0.9rem;
    background-color: #ffffff;
    transition: border-color 0.15s ease, box-shadow 0.15s ease, background-color 0.15s ease;
}

.input:focus,
.select:focus,
.textarea:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 1px rgba(254, 84, 18, 0.35);
}

.textarea {
    min-height: 120px;
    resize: vertical;
}

/* ================================
   TABELAS
=================================== */

.table-wrapper {
    width: 100%;
    overflow: auto;
}

.table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.88rem;
}

.table th,
.table td {
    text-align: left;
    padding: 0.55rem 0.75rem;
    border-bottom: 1px solid var(--color-border);
}

.table th {
    font-size: 0.78rem;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    color: var(--color-text-muted);
    background-color: #f9fafb;
}

.table tbody tr:hover {
    background-color: #f9fafb;
}

/* ================================
   BADGES / STATUS
=================================== */

.badge {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.1rem 0.55rem;
    border-radius: 999px;
    font-size: 0.75rem;
    font-weight: 500;
}

.badge-success {
    background-color: #dcfce7;
    color: #166534;
}

.badge-warning {
    background-color: #fef3c7;
    color: #92400e;
}

.badge-danger {
    background-color: #fee2e2;
    color: #b91c1c;
}

.badge-neutral {
    background-color: #e5e7eb;
    color: #374151;
}

/* ================================
   ABAS / MODAL / UPLOAD
=================================== */

.tabs {
    display: flex;
    gap: 0.35rem;
    border-bottom: 1px solid var(--color-border);
    margin-bottom: 0.75rem;
}

.tab {
    padding: 0.35rem 0.75rem;
    border-radius: 999px 999px 0 0;
    font-size: 0.85rem;
    color: var(--color-text-muted);
    cursor: pointer;
}

.tab--active {
    background-color: var(--color-surface);
    color: var(--color-primary-strong);
    border: 1px solid var(--color-border);
    border-bottom-color: var(--color-surface);
    font-weight: 600;
}

.modal-backdrop {
    position: fixed;
    inset: 0;
    background-color: rgba(15, 23, 42, 0.35);
    display: none;
    align-items: center;
    justify-content: center;
    z-index: 50;
}

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

.modal-dialog {
    background-color: var(--color-surface);
    border-radius: var(--radius-lg);
    border: 1px solid var(--color-border);
    box-shadow: var(--shadow-soft);
    max-width: 600px;
    width: 100%;
    padding: 1rem 1.25rem 1.25rem;
}

.upload-area {
    border: 1px dashed var(--color-border-strong);
    border-radius: var(--radius-md);
    padding: 1.25rem;
    text-align: center;
    background-color: #f9fafb;
    font-size: 0.9rem;
    color: var(--color-text-muted);
    cursor: pointer;
    transition: border-color 0.15s ease, background-color 0.15s ease;
}

.upload-area:hover {
    border-color: var(--color-primary);
    background-color: #fff7f3;
}

.upload-area.is-hover {
    border-color: var(--color-primary-strong);
    background-color: #fff0e8;
}

/* ================================
   CALENDÁRIO (DASHBOARD)
=================================== */

.calendar-grid {
    display: grid;
    grid-template-columns: repeat(7, minmax(0, 1fr));
    gap: 0.25rem;
    font-size: 0.8rem;
}

.calendar-day {
    padding: 0.3rem 0.15rem;
    text-align: center;
    border-radius: 0.35rem;
    cursor: pointer;
    color: var(--color-text-muted);
}

.calendar-day--has-event {
    background-color: var(--color-primary-soft);
    color: var(--color-primary-strong);
    font-weight: 600;
}

.calendar-day--today {
    outline: 1px solid var(--color-primary-strong);
}

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

@media (max-width: 1024px) {
    .sidebar {
        position: fixed;
        left: -280px;
        top: 56px;
        height: calc(100vh - 56px);
        z-index: 45;
        transition: left 0.25s ease;
    }

    .sidebar.is-open {
        left: 0;
    }

    .app-content {
        padding: 1rem;
    }
}

@media (max-width: 640px) {
    .page-header {
        align-items: flex-start;
    }

    .app-header {
        padding-inline: 0.85rem;
    }

    .prof-content {
        padding: 1rem;
    }
}