/* TVET IMS — shadcn-inspired, mobile-first design system
   Content shell is boxed to 1180px. Brand: navy #003a4c / teal #4fa6b3 */

:root {
    --background: 210 20% 98%;
    --foreground: 194 100% 10%;
    --card: 0 0% 100%;
    --card-foreground: 194 100% 10%;
    --popover: 0 0% 100%;
    --popover-foreground: 194 100% 10%;
    --primary: 194 100% 15%;          /* #003a4c */
    --primary-foreground: 0 0% 100%;
    --secondary: 210 20% 96%;
    --secondary-foreground: 194 100% 15%;
    --muted: 210 20% 96%;
    --muted-foreground: 215 16% 47%;
    --accent: 187 39% 51%;            /* #4fa6b3 */
    --accent-foreground: 0 0% 100%;
    --destructive: 0 84% 60%;
    --destructive-foreground: 0 0% 100%;
    --border: 214 32% 91%;
    --input: 214 32% 91%;
    --ring: 187 39% 51%;
    --radius: 0.5rem;
    --content: 1180px;
    --nav: 194 100% 15%;
}

html { color-scheme: light; }

body {
    font-family: Inter, ui-sans-serif, system-ui, -apple-system, Segoe UI, sans-serif;
    background-color: hsl(var(--background));
    color: hsl(var(--foreground));
    -webkit-font-smoothing: antialiased;
}

/* ── Content shell (1180px) ───────────────────────────────────────── */
.app-shell {
    width: 100%;
    max-width: var(--content);
    margin-left: auto;
    margin-right: auto;
    padding-left: 1rem;
    padding-right: 1rem;
}
@media (min-width: 640px) {
    .app-shell { padding-left: 1.5rem; padding-right: 1.5rem; }
}

/* ── Brand colour utilities ───────────────────────────────────────── */
.bg-primary       { background-color: #003a4c; }
.bg-primary-light { background-color: #004d66; }
.bg-primary-dark  { background-color: #002533; }
.bg-secondary     { background-color: #4fa6b3; }
.bg-secondary-dk  { background-color: #3a8a96; }
.text-secondary   { color: #4fa6b3; }
.border-secondary { border-color: #4fa6b3; }
.ring-secondary   { --tw-ring-color: #4fa6b3; }

/* ── Navigation ───────────────────────────────────────────────────── */
.nav-link {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 0.75rem;
    border-radius: calc(var(--radius) - 2px);
    font-size: 0.8125rem;
    font-weight: 500;
    color: rgba(255,255,255,0.78);
    transition: background 0.15s, color 0.15s;
    white-space: nowrap;
    min-height: 2.25rem;
}
.nav-link:hover {
    background-color: rgba(79,166,179,0.18);
    color: #fff;
}
.nav-link-active {
    background-color: #4fa6b3 !important;
    color: #fff !important;
}
.nav-link-active:hover { background-color: #3a8a96 !important; }

.nav-link-mobile {
    display: flex;
    width: 100%;
    min-height: 2.75rem;
    padding: 0.75rem 0.875rem;
    border-radius: calc(var(--radius) - 2px);
    font-size: 0.875rem;
    font-weight: 500;
    color: rgba(255,255,255,0.85);
    white-space: normal;
}
.nav-link-mobile:hover {
    background-color: rgba(79,166,179,0.18);
    color: #fff;
}
.nav-link-mobile:hover,
.nav-link-mobile.nav-link-active {
    color: #fff;
}

/* ── Buttons (shadcn-style, 44px tap target on mobile) ────────────── */
.btn-primary,
.btn-secondary,
.btn-danger,
.btn-ghost {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.375rem;
    height: 2.5rem;
    padding: 0 1rem;
    border-radius: calc(var(--radius) - 2px);
    font-size: 0.875rem;
    font-weight: 500;
    line-height: 1;
    white-space: nowrap;
    cursor: pointer;
    text-decoration: none;
    transition: background-color 0.15s, color 0.15s, border-color 0.15s, box-shadow 0.15s, opacity 0.15s;
}
@media (min-width: 640px) {
    .btn-primary, .btn-secondary, .btn-danger, .btn-ghost { height: 2.25rem; }
}

.btn-primary {
    background-color: #4fa6b3;
    border: 1px solid #4fa6b3;
    color: #fff;
}
.btn-primary:hover { background-color: #3a8a96; border-color: #3a8a96; }
.btn-primary:disabled { opacity: 0.6; cursor: not-allowed; }

.btn-secondary {
    background-color: hsl(var(--card));
    border: 1px solid hsl(var(--border));
    color: hsl(var(--foreground));
}
.btn-secondary:hover { background-color: hsl(var(--muted)); }

.btn-danger {
    background-color: hsl(var(--destructive));
    border: 1px solid hsl(var(--destructive));
    color: #fff;
}
.btn-danger:hover { background-color: #b91c1c; border-color: #b91c1c; }

.btn-ghost {
    background: transparent;
    border: 1px solid transparent;
    color: hsl(var(--muted-foreground));
}
.btn-ghost:hover { background-color: hsl(var(--muted)); color: hsl(var(--foreground)); }

.btn-primary.text-xs,
.btn-secondary.text-xs { font-size: 0.75rem; height: 2rem; padding: 0 0.75rem; }

/* ── Cards ────────────────────────────────────────────────────────── */
.card {
    background: hsl(var(--card));
    color: hsl(var(--card-foreground));
    border: 1px solid hsl(var(--border));
    border-radius: var(--radius);
    box-shadow: 0 1px 2px rgba(15, 23, 42, 0.04);
    padding: 1rem;
}
@media (min-width: 640px) {
    .card { padding: 1.5rem; }
}

.card-toolbar {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
    padding: 1rem;
    border-bottom: 1px solid hsl(var(--border));
}
@media (min-width: 640px) {
    .card-toolbar {
        flex-direction: row;
        align-items: center;
        justify-content: space-between;
        padding: 1rem 1.5rem;
    }
}
.card-toolbar > .btn-primary,
.card-toolbar > .btn-secondary { width: 100%; }
@media (min-width: 640px) {
    .card-toolbar > .btn-primary,
    .card-toolbar > .btn-secondary { width: auto; }
}

/* ── Forms ────────────────────────────────────────────────────────── */
.form-label {
    display: block;
    font-size: 0.875rem;
    font-weight: 500;
    color: hsl(var(--foreground));
    margin-bottom: 0.375rem;
}
.form-input,
.form-select,
.form-textarea {
    margin-top: 0;
    display: block;
    width: 100%;
    min-height: 2.5rem;
    border-radius: calc(var(--radius) - 2px);
    border: 1px solid hsl(var(--input));
    background: hsl(var(--card));
    padding: 0.5rem 0.75rem;
    font-size: 1rem; /* 16px avoids iOS zoom */
    color: hsl(var(--foreground));
    box-shadow: none;
    outline: none;
    transition: border-color 0.15s, box-shadow 0.15s;
}
@media (min-width: 640px) {
    .form-input, .form-select, .form-textarea {
        min-height: 2.25rem;
        font-size: 0.875rem;
    }
}
.form-textarea { min-height: 4.5rem; }
.form-input:focus,
.form-select:focus,
.form-textarea:focus {
    border-color: #4fa6b3;
    box-shadow: 0 0 0 3px rgba(79,166,179,.22);
}
.form-error { margin-top: 0.375rem; font-size: 0.875rem; color: hsl(var(--destructive)); }
.required-star { color: hsl(var(--destructive)); margin-left: 0.125rem; }

/* ── Tables ───────────────────────────────────────────────────────── */
.table-wrap,
.card:has(> table) {
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    overscroll-behavior-x: contain;
}
.table { width: 100%; border-collapse: collapse; }
.table th {
    padding: 0.75rem 1rem;
    text-align: left;
    font-size: 0.75rem;
    font-weight: 600;
    color: #4fa6b3;
    text-transform: uppercase;
    letter-spacing: 0.04em;
    white-space: nowrap;
}
.table td {
    padding: 0.75rem 1rem;
    font-size: 0.875rem;
    color: hsl(var(--foreground));
}
.table tbody tr:hover { background-color: hsl(187 39% 51% / 0.06); }

@media (max-width: 639px) {
    .table th, .table td { padding: 0.625rem 0.75rem; }
}

/* ── Page header / actions ────────────────────────────────────────── */
.page-header {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}
@media (min-width: 640px) {
    .page-header {
        flex-direction: row;
        align-items: center;
        justify-content: space-between;
    }
}
.page-header-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
}
.page-header-actions > .btn-primary,
.page-header-actions > .btn-secondary,
.page-header-actions > .btn-danger,
.page-header-actions > a,
.page-header-actions > button {
    flex: 1 1 auto;
    justify-content: center;
    text-align: center;
}
@media (min-width: 640px) {
    .page-header-actions > .btn-primary,
    .page-header-actions > .btn-secondary,
    .page-header-actions > .btn-danger,
    .page-header-actions > a,
    .page-header-actions > button {
        flex: 0 0 auto;
    }
}

/* ── Filter / search bars ─────────────────────────────────────────── */
.filter-bar,
.search-bar {
    display: grid;
    grid-template-columns: 1fr;
    gap: 0.75rem;
    align-items: end;
}
@media (min-width: 640px) {
    .filter-bar,
    .search-bar {
        display: flex;
        flex-wrap: wrap;
        align-items: end;
    }
}
.filter-bar > div { min-width: 0; }
.filter-bar .form-input,
.filter-bar .form-select,
.search-bar .form-input { width: 100%; }
.filter-bar .w-48,
.filter-bar .w-44 { width: 100% !important; }
@media (min-width: 640px) {
    .filter-bar .w-48 { width: 12rem !important; }
    .filter-bar .w-44 { width: 11rem !important; }
}
.filter-bar .btn-primary,
.filter-bar .btn-secondary,
.search-bar .btn-primary,
.search-bar .btn-secondary {
    width: 100%;
}
@media (min-width: 640px) {
    .filter-bar .btn-primary,
    .filter-bar .btn-secondary,
    .search-bar .btn-primary,
    .search-bar .btn-secondary { width: auto; }
}

/* ── Pagination ───────────────────────────────────────────────────── */
.pager {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
    align-items: stretch;
}
@media (min-width: 640px) {
    .pager {
        flex-direction: row;
        align-items: center;
        justify-content: space-between;
    }
}
.pager nav { overflow-x: auto; max-width: 100%; }
nav[role="navigation"] { max-width: 100%; overflow-x: auto; }

/* ── Alerts ───────────────────────────────────────────────────────── */
.alert {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: 0.75rem;
    margin-bottom: 1rem;
    padding: 0.875rem 1rem;
    border-radius: var(--radius);
    border: 1px solid;
    font-size: 0.875rem;
}
.alert-success { background: #f0fdf4; border-color: #bbf7d0; color: #166534; }
.alert-error   { background: #fef2f2; border-color: #fecaca; color: #991b1b; }
.alert-warning { background: #fffbeb; border-color: #fde68a; color: #92400e; }

/* ── Dropdown ─────────────────────────────────────────────────────── */
.dropdown-menu {
    position: absolute;
    top: calc(100% + 0.35rem);
    right: 0;
    z-index: 60;
    width: min(16rem, calc(100vw - 2rem));
    transform-origin: top right;
    border-radius: var(--radius);
    background: hsl(var(--popover));
    color: hsl(var(--popover-foreground));
    padding: 0.25rem;
    box-shadow: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);
    border: 1px solid hsl(var(--border));
}
.dropdown-menu-left {
    left: 0;
    right: auto;
    transform-origin: top left;
}
.dropdown-menu-float {
    position: fixed;
    top: auto;
    right: auto;
    left: auto;
    margin: 0;
    z-index: 200;
    width: 16rem;
    transform-origin: top left;
}
.dropdown-item {
    display: block;
    width: 100%;
    border: 0;
    background: transparent;
    cursor: pointer;
    font-family: inherit;
    border-radius: calc(var(--radius) - 4px);
    padding: 0.625rem 0.75rem;
    font-size: 0.875rem;
    color: hsl(var(--foreground));
    text-align: left;
}
.dropdown-item:hover { background: hsl(var(--muted)); }

/* ── Footer ───────────────────────────────────────────────────────── */
.app-footer {
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
    padding-top: 0.875rem;
    padding-bottom: 0.875rem;
}
@media (min-width: 640px) {
    .app-footer {
        flex-direction: row;
        align-items: center;
        justify-content: space-between;
    }
}

.form-actions {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}
@media (min-width: 640px) {
    .form-actions {
        flex-direction: row;
        align-items: center;
        flex-wrap: wrap;
    }
}
.form-actions > .btn-primary,
.form-actions > .btn-secondary,
.form-actions > .btn-danger,
.form-actions > a,
.form-actions > button,
.form-actions > form {
    width: 100%;
}
.form-actions > .btn-primary,
.form-actions > .btn-secondary,
.form-actions > .btn-danger,
.form-actions > a,
.form-actions > button {
    justify-content: center;
}
.form-actions > form .btn-primary,
.form-actions > form .btn-secondary,
.form-actions > form .btn-danger,
.form-actions > form button {
    width: 100%;
    justify-content: center;
}
@media (min-width: 640px) {
    .form-actions > .btn-primary,
    .form-actions > .btn-secondary,
    .form-actions > .btn-danger,
    .form-actions > a,
    .form-actions > button,
    .form-actions > form { width: auto; }
    .form-actions > form .btn-primary,
    .form-actions > form .btn-secondary,
    .form-actions > form .btn-danger,
    .form-actions > form button { width: auto; }
}

[x-cloak] { display: none !important; }