/* Portal base (plan.md 1.1): element styles and the global class names (.btn*, .card, .toggle-switch) for pages on
   the design system (templates/_portal_base.html), AI Chat included. Tokens: portal-tokens.css; components:
   portal-components.css. */

*, *::before, *::after { box-sizing: border-box; }
[hidden] { display: none !important; }
html { -webkit-text-size-adjust: 100%; }
body {
    margin: 0; font-family: var(--font-sans); font-size: var(--fs-md); line-height: var(--lh-base);
    -webkit-font-smoothing: antialiased; -moz-osx-font-smoothing: grayscale;
    color: var(--clr-text-body); background-color: var(--clr-bg); overflow-x: hidden;
}
button, input, select, textarea { font: inherit; }
input, select, textarea { accent-color: var(--clr-primary); color-scheme: inherit; }
a { color: var(--clr-link); }
h1, h2, h3, h4 { color: var(--clr-text-heading); line-height: var(--lh-tight); }
:focus-visible { outline: 2px solid var(--clr-focus-ring); outline-offset: 2px; }
.sr-only { position: absolute !important; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; border: 0; }
/* The page area of the base layout (templates/_portal_base.html). */
.app-main { width: 100%; max-width: var(--page-max); margin: 0 auto; padding: 0 var(--page-gutter) var(--space-10); min-width: 0; }
/* The page's sides keep clear of a notch on a phone on its side (the insets are 0 in a browser tab). */
.app-main { padding-left: max(var(--page-gutter), env(safe-area-inset-left, 0px)); padding-right: max(var(--page-gutter), env(safe-area-inset-right, 0px)); }
.app-shell .app-main { margin: 0; }
.ds-auth { min-height: 100dvh; display: grid; place-items: center; padding: var(--space-6) var(--page-gutter); }
.ds-auth-card { width: 100%; max-width: 420px; }
.portal-page { min-height: 100dvh; }
@media (prefers-reduced-motion: reduce) {
    /* Only what a rule transitions: transition-property's initial value is all, so the duration alone made every
       element transition every change for a frame (a class swap drew its new display with its old padding). Zero
       specificity: any rule's own transition wins. */
    :where(*), :where(*)::before, :where(*)::after { transition-property: none; }
    *, *::before, *::after { animation-duration: 0.01ms !important; animation-iteration-count: 1 !important; transition-duration: 0.01ms !important; scroll-behavior: auto !important; }
}

/* =========================================================================================
   BUTTONS (the .btn family with Scheduling's sizes), CARD, SWITCH
   ========================================================================================= */
.btn, .btn-primary, .btn-secondary, .btn-ghost, .btn-success, .btn-danger, .btn-approve {
    appearance: none; display: inline-flex; align-items: center; justify-content: center; gap: 8px;
    padding: 9px 16px; font-size: var(--fs-btn); font-weight: var(--fw-semibold); font-family: inherit; line-height: 1.2;
    border-radius: var(--radius-md); border: 1px solid transparent; cursor: pointer; text-decoration: none; white-space: nowrap;
    transition: background-color var(--transition-speed), border-color var(--transition-speed), color var(--transition-speed);
}
.btn svg.ds-i, .btn-primary svg.ds-i, .btn-secondary svg.ds-i, .btn-ghost svg.ds-i, .btn-success svg.ds-i, .btn-danger svg.ds-i, .btn-approve svg.ds-i { width: var(--icon-md); height: var(--icon-md); }
.btn-primary { background: var(--clr-primary-fill); color: var(--clr-on-accent); }
@media (hover: hover) { .btn-primary:hover:not(:disabled, :where([aria-disabled="true"]:not(.is-loading))) { background: var(--clr-primary-fill-hover); } }
.btn-secondary { background: var(--clr-surface); color: var(--clr-text-body); border-color: var(--clr-border); }
@media (hover: hover) { .btn-secondary:hover:not(:disabled, :where([aria-disabled="true"]:not(.is-loading))) { border-color: var(--clr-border-hover); background: var(--clr-surface-muted); color: var(--clr-text-heading); } }
/* The quiet button (N0, plan 1.3): no fill and no border until hovered; a bordered look is .btn-secondary. */
.btn-ghost { background: transparent; color: var(--clr-text-body); }
.btn-ghost[aria-expanded="true"], .btn-ghost[aria-pressed="true"] { background: var(--clr-surface-muted); color: var(--clr-text-heading); }
@media (hover: hover) { .btn-ghost:hover:not(:disabled, :where([aria-disabled="true"]:not(.is-loading))) { background: var(--clr-surface-muted); color: var(--clr-text-heading); } }
.btn-success { background: var(--clr-success-solid); border-color: var(--clr-success-solid); color: var(--clr-on-accent); }
@media (hover: hover) { .btn-success:hover:not(:disabled, :where([aria-disabled="true"]:not(.is-loading))) { background: var(--clr-success-solid-hover); border-color: var(--clr-success-solid-hover); } }
.btn-danger { background: var(--clr-danger-fill); color: var(--clr-on-accent); }
@media (hover: hover) { .btn-danger:hover:not(:disabled, :where([aria-disabled="true"]:not(.is-loading))) { background: var(--clr-danger-fill-hover); } }
.btn-approve { background: var(--clr-success-soft); color: var(--clr-success-tone-ink); border: 1px solid var(--clr-success-line); }
@media (hover: hover) { .btn-approve:hover:not(:disabled, :where([aria-disabled="true"]:not(.is-loading))) { background: var(--clr-success-solid); color: var(--clr-on-accent); border-color: var(--clr-success-solid); } }
:is(.btn, .btn-primary, .btn-secondary, .btn-ghost, .btn-success, .btn-danger, .btn-approve):disabled { opacity: 0.5; cursor: not-allowed; }
/* aria-disabled: locked but focusable (a press can say why); a busy .is-loading button keeps its own look */
:is(.btn, .btn-primary, .btn-secondary, .btn-ghost, .btn-success, .btn-danger, .btn-approve):where([aria-disabled="true"]:not(.is-loading)) { opacity: 0.5; cursor: not-allowed; }
:is(.btn, .btn-primary, .btn-secondary, .btn-ghost, .btn-success, .btn-danger, .btn-approve):focus-visible { outline: 2px solid var(--clr-focus-ring); outline-offset: 2px; }
.btn-sm { height: var(--ctl-h-sm); padding: 0 12px !important; font-size: var(--fs-sm) !important; gap: 6px !important; }
.btn-lg { height: var(--ctl-h-lg); padding: 0 16px; }
.btn-icon { width: var(--ctl-h-md); height: var(--ctl-h-md); padding: 0 !important; }
.btn-sm.btn-icon { width: var(--ctl-h-sm); height: var(--ctl-h-sm); }
.btn-lg.btn-icon { width: var(--ctl-h-lg); height: var(--ctl-h-lg); }
.btn-icon.is-round { border-radius: var(--radius-pill); }   /* a round icon button: a chat's Send and Stop */
.is-loading { position: relative; color: transparent !important; }
.is-loading::after { content: ""; position: absolute; inset: 0; margin: auto; width: 16px; height: 16px; border-radius: 50%; border: 2px solid currentColor; border-color: var(--clr-on-accent) var(--clr-on-accent) transparent transparent; animation: ds-spin 0.7s linear infinite; }
.btn-secondary.is-loading::after, .btn-ghost.is-loading::after, .btn-approve.is-loading::after, .ds-icon-btn.is-loading::after { border-color: var(--clr-text-muted) var(--clr-text-muted) transparent transparent; }
@keyframes ds-spin { to { transform: rotate(360deg); } }

.toggle-switch { position: relative; display: inline-block; width: 44px; height: 24px; flex-shrink: 0; }
.toggle-switch input { opacity: 0; width: 0; height: 0; position: absolute; }
/* The off track is --clr-switch-off (3:1 against the surface, as a control's boundary must be). */
.toggle-slider { position: absolute; cursor: pointer; inset: 0; background-color: var(--clr-switch-off); border-radius: var(--radius-pill); transition: background-color 0.3s ease; }
.toggle-slider::before { content: ""; position: absolute; height: 18px; width: 18px; left: 3px; bottom: 3px; background-color: var(--clr-surface); border-radius: 50%; transition: transform 0.3s ease; box-shadow: 0 1px 3px rgba(0, 0, 0, 0.15); }
.toggle-switch input:checked + .toggle-slider { background-color: var(--clr-primary); }
.toggle-switch input:checked + .toggle-slider::before { transform: translateX(20px); }
.toggle-switch input:disabled + .toggle-slider { opacity: 0.45; cursor: not-allowed; }
.toggle-switch input:focus-visible + .toggle-slider { box-shadow: 0 0 0 2px var(--clr-surface), 0 0 0 4px var(--clr-focus-ring); }
.card { background: var(--clr-surface); border: 1px solid var(--clr-border); border-radius: var(--radius-lg); box-shadow: var(--shadow-sm); padding: 20px; }
.card.is-flush { padding: 0; overflow: hidden; }
.card.is-flush > .ds-card-head { padding: var(--space-4) var(--space-5) 0; margin-bottom: var(--space-3); }
@media (max-width: 600px) { .card.is-flush > .ds-card-head { padding: var(--space-3) var(--space-4) 0; } }

@media (pointer: coarse) {
    .btn, .btn-primary, .btn-secondary, .btn-ghost, .btn-success, .btn-danger, .btn-approve { min-height: var(--ctl-h-touch); }
    .btn-sm { height: var(--ctl-h-touch); }
    /* An icon-only button is a 44 px square on touch screens (like .ds-icon-btn). */
    .btn-icon, .btn-sm.btn-icon, .btn-lg.btn-icon { width: var(--ctl-h-touch); }
    /* A bare switch (no .ds-switch row around it) takes taps across a 44 px band around its 24 px track. */
    .toggle-switch::after { content: ""; position: absolute; left: 0; right: 0; top: 50%; height: var(--ctl-h-touch); transform: translateY(-50%); }
}