/* base.css — reset, typo, composants de base */

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

html,
body {
    margin: 0;
    padding: 0;
    min-height: 100%;
}

body {
    font-family: var(--font-sans);
    font-size: var(--fs-md);
    line-height: 1.5;
    color: var(--text);
    background: var(--bg);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    font-feature-settings: "cv11", "ss01", "ss03";
    text-rendering: optimizeLegibility;
    transition: background-color var(--dur-base) ease, color var(--dur-base) ease;
}

/* Chiffres en chasse fixe partout où ça compte */
.num,
.data-table td,
.kpi-value,
.data-totals .value,
input[type="number"],
input[type="text"][inputmode="decimal"] {
    font-variant-numeric: tabular-nums;
}

h1, h2, h3, h4, h5, h6 {
    margin: 0 0 var(--space-3);
    line-height: 1.25;
    color: var(--text);
    letter-spacing: -0.01em;
}
h1 {
    font-size: var(--fs-2xl);
    font-weight: 650;
    letter-spacing: -0.02em;
}
h2 { font-size: var(--fs-lg); font-weight: 600; }
h3 { font-size: var(--fs-md); font-weight: 600; }

p {
    margin: 0 0 var(--space-3);
}

a {
    color: var(--accent);
    text-decoration: none;
    transition: color var(--dur-fast) ease;
}
a:hover {
    color: var(--accent-hover);
    text-decoration: underline;
}

/* --- Boutons --- */

button,
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-2);
    padding: 8px 14px;
    border-radius: var(--radius-sm);
    border: 1px solid var(--border);
    background: var(--bg-elevated);
    color: var(--text);
    font-family: inherit;
    font-size: var(--fs-sm);
    font-weight: 500;
    cursor: pointer;
    transition:
        background-color var(--dur-fast) ease,
        border-color var(--dur-fast) ease,
        color var(--dur-fast) ease,
        transform var(--dur-fast) ease,
        box-shadow var(--dur-fast) ease;
    user-select: none;
    line-height: 1.3;
}
button:hover,
.btn:hover {
    background: var(--bg-hover);
    border-color: var(--border-strong);
}
button:active,
.btn:active {
    transform: translateY(1px);
}
button:focus-visible,
.btn:focus-visible {
    outline: 2px solid var(--accent);
    outline-offset: 2px;
}
button:disabled,
.btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

.btn-primary {
    background: var(--accent);
    color: var(--accent-contrast);
    border-color: var(--accent);
}
.btn-primary:hover {
    background: var(--accent-hover);
    border-color: var(--accent-hover);
    box-shadow: var(--shadow-sm);
}

.btn-secondary {
    background: var(--accent-50);
    color: var(--brand-700);
    border-color: transparent;
}
[data-theme="dark"] .btn-secondary,
:root:not([data-theme="light"]) .btn-secondary {
    color: var(--brand-600);
}

.btn-danger {
    background: transparent;
    color: var(--danger);
    border-color: var(--border);
}
.btn-danger:hover {
    background: var(--danger-50);
    border-color: var(--danger);
    color: var(--danger);
}

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

.btn-block {
    width: 100%;
}

/* --- Inputs --- */

input[type="text"],
input[type="password"],
input[type="email"],
input[type="number"],
input[type="date"],
input[type="month"],
textarea,
select {
    width: 100%;
    padding: 8px 12px;
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    background: var(--bg-elevated);
    color: var(--text);
    font-family: inherit;
    font-size: var(--fs-md);
    transition: border-color var(--dur-fast) ease, box-shadow var(--dur-fast) ease;
}
input:focus,
textarea:focus,
select:focus {
    outline: none;
    border-color: var(--accent);
    box-shadow: 0 0 0 3px color-mix(in srgb, var(--accent) 20%, transparent);
}

label {
    display: block;
    margin-bottom: var(--space-1);
    font-size: var(--fs-xs);
    font-weight: 550;
    color: var(--text-subtle);
    text-transform: uppercase;
    letter-spacing: 0.04em;
}

.form-field {
    margin-bottom: var(--space-4);
}

.form-row {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: var(--space-3);
    margin-bottom: var(--space-4);
}

/* --- Cards --- */

.card {
    background: var(--bg-elevated);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    padding: var(--space-5);
    box-shadow: var(--shadow-sm);
    transition: box-shadow var(--dur-base) var(--ease-out-quart);
}

/* --- Card collapsible (<details class="card card-collapsible">) ---
   La carte devient pliable. Le <summary> agit comme entête cliquable ;
   le <div class="card-body"> tient le contenu. Chevron rotatif inclus. */
.card-collapsible {
    padding: 0;
    overflow: hidden;
}
.card-collapsible > summary {
    list-style: none;
    cursor: pointer;
    padding: var(--space-4) var(--space-5);
    display: flex;
    align-items: center;
    justify-content: space-between;
    user-select: none;
    gap: var(--space-3);
}
.card-collapsible > summary::-webkit-details-marker { display: none; }
.card-collapsible > summary::after {
    content: '';
    width: 8px;
    height: 8px;
    flex: 0 0 auto;
    border-right: 2px solid var(--text-muted);
    border-bottom: 2px solid var(--text-muted);
    transform: rotate(-45deg);
    transition: transform var(--dur-fast) ease;
}
.card-collapsible[open] > summary::after { transform: rotate(45deg); }
.card-collapsible > summary > h2 {
    margin: 0;
    display: flex;
    align-items: center;
    gap: var(--space-2);
    font-size: var(--fs-lg);
}
.card-collapsible > .card-body {
    padding: 0 var(--space-5) var(--space-5);
}

/* --- Alerts --- */

.alert {
    padding: var(--space-3) var(--space-4);
    border-radius: var(--radius-sm);
    margin-bottom: var(--space-4);
    font-size: var(--fs-sm);
    display: flex;
    align-items: flex-start;
    gap: var(--space-2);
    animation: alert-in var(--dur-base) var(--ease-out-quart);
}
@keyframes alert-in {
    from { opacity: 0; transform: translateY(-4px); }
    to   { opacity: 1; transform: translateY(0); }
}
.alert-error {
    background: var(--danger-50);
    border: 1px solid color-mix(in srgb, var(--danger) 30%, transparent);
    color: var(--danger);
}
.alert-success {
    background: var(--success-50);
    border: 1px solid color-mix(in srgb, var(--success) 30%, transparent);
    color: var(--success-600);
}
.alert-info {
    background: var(--brand-50);
    border: 1px solid color-mix(in srgb, var(--accent) 30%, transparent);
    color: var(--brand-700);
}
.alert-warn {
    background: var(--warn-50);
    border: 1px solid color-mix(in srgb, var(--warning) 30%, transparent);
    color: var(--warn-600);
}

/* --- Utilities --- */

.muted {
    color: var(--text-muted);
    font-size: var(--fs-sm);
}

.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

.hidden,
[hidden] {
    display: none !important;
}

/* --- Icons (Lucide inline) --- */

.icon {
    display: inline-block;
    width: 18px;
    height: 18px;
    flex-shrink: 0;
    vertical-align: -3px;
    stroke: currentColor;
    stroke-width: 1.75;
    stroke-linecap: round;
    stroke-linejoin: round;
    fill: none;
}
.icon-sm { width: 14px; height: 14px; }
.icon-lg { width: 24px; height: 24px; }

/* --- Layouts auth (login + setup) --- */

.auth-layout {
    min-height: 100vh;
    display: grid;
    place-items: center;
    padding: var(--space-5);
    background:
        radial-gradient(circle at 20% 0%, color-mix(in srgb, var(--brand-500) 8%, transparent) 0%, transparent 40%),
        radial-gradient(circle at 80% 100%, color-mix(in srgb, var(--accent-500) 8%, transparent) 0%, transparent 40%),
        var(--bg);
}

.auth-card {
    width: 100%;
    max-width: 480px;
}

.auth-card .card {
    padding: var(--space-6);
}

.auth-header {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--space-3);
    margin-bottom: var(--space-5);
}

.auth-header .logo {
    height: 64px;
    width: 64px;
    border-radius: var(--radius-md);
    box-shadow: 0 4px 12px rgba(67, 56, 202, 0.22);
}
.auth-wordmark {
    font-size: var(--fs-xl);
    font-weight: 700;
    letter-spacing: -0.02em;
    color: var(--text);
    line-height: 1;
}

.step-indicator {
    display: flex;
    gap: var(--space-2);
    margin-bottom: var(--space-5);
}
.step-indicator > div {
    flex: 1;
    height: 4px;
    border-radius: 999px;
    background: var(--border);
    transition: background var(--dur-base) ease;
}
.step-indicator > div.active {
    background: var(--accent);
}
.step-indicator > div.done {
    background: var(--success);
}

/* --- Entrée/sortie de vue --- */

#app > * {
    animation: view-in var(--dur-base) var(--ease-out-quart);
}
@keyframes view-in {
    from { opacity: 0; transform: translateY(4px); }
    to   { opacity: 1; transform: translateY(0); }
}