/* Account menu (top right), sidebar profile card and the My profile page, shared by the student
   workspace and the teacher dashboard (scripts/shared/profile.js). Colours come from styles/theme.css. */

/* ---------- Header account menu ---------- */
.account-menu { position: relative; }
.account-button {
  display: inline-flex; align-items: center; gap: 6px; padding: 3px 8px 3px 3px; border-radius: 999px; cursor: pointer;
  background: var(--surface-raised); border: 1px solid var(--border-strong); color: var(--text-soft); transition: border-color 0.15s ease;
}
.account-button:hover, .account-button[aria-expanded="true"] { border-color: var(--border-hover); color: var(--text-main); }
.account-button .icon { width: 14px; height: 14px; transition: transform 0.15s ease; }
.account-button[aria-expanded="true"] .icon { transform: rotate(180deg); }
.account-dropdown {
  position: absolute; right: 0; top: calc(100% + 8px); z-index: 70; width: 260px; padding: 6px; border-radius: 14px;
  background: var(--surface); border: 1px solid var(--border-strong); box-shadow: 0 18px 44px var(--shadow-color); animation: menu-in 0.16s ease;
}
.account-head { display: flex; align-items: center; gap: 10px; padding: 10px 10px 12px; border-bottom: 1px solid var(--border); margin-bottom: 6px; min-width: 0; }
.account-head > div { min-width: 0; }
.account-head b { display: block; font-size: 13.5px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.account-head small { display: block; font-size: 12px; color: var(--text-muted); overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.account-dropdown [role="menuitem"] {
  width: 100%; display: flex; align-items: center; gap: 10px; padding: 9px 10px; border-radius: 9px; border: 0; background: none;
  font-size: 13.5px; color: var(--text-soft); text-decoration: none; text-align: left; cursor: pointer;
}
.account-dropdown [role="menuitem"]:hover, .account-dropdown [role="menuitem"]:focus-visible { background: var(--surface-hover); color: var(--text-main); outline: none; }
.account-dropdown [role="menuitem"] .icon { width: 16px; height: 16px; color: var(--text-muted); }
.account-dropdown [role="separator"] { height: 1px; background: var(--border); margin: 6px 4px; }
@keyframes menu-in { from { opacity: 0; transform: translateY(-4px); } to { opacity: 1; transform: none; } }

/* Sidebar account card opens My profile */
.user-card:is(a, button) { color: inherit; text-decoration: none; transition: border-color 0.15s ease, background 0.15s ease; }
button.user-card { width: 100%; font: inherit; text-align: left; cursor: pointer; }
.user-card:is(a, button):hover { border-color: var(--border-hover); background: var(--surface-raised); }
.user-card:is(a, button)[aria-current] { border-color: color-mix(in srgb, var(--accent) 45%, var(--border)); }

/* =====================================================================
   My profile (student-profile.js)
   ===================================================================== */
.profile-grid { display: grid; grid-template-columns: minmax(0, 1.2fr) minmax(320px, 1fr); gap: 20px; align-items: start; }
.field-label { display: block; font-size: 12px; font-weight: 650; letter-spacing: 0.4px; text-transform: uppercase; color: var(--text-muted); margin-bottom: 8px; }
.field-help { font-size: 12.5px; color: var(--text-muted); line-height: 1.5; }
.field-error { font-size: 12.5px; color: var(--danger-text); line-height: 1.45; margin-top: 6px; }
.field-error:empty { display: none; }
.field-input[aria-invalid="true"] { border-color: color-mix(in srgb, var(--red) 60%, var(--border-strong)); box-shadow: 0 0 0 3px color-mix(in srgb, var(--red) 12%, transparent); }
.field-foot { display: flex; justify-content: space-between; gap: 12px; margin-top: 6px; }
.field-foot .char-count { padding: 0; flex: none; }
.char-count[data-state="over"] { color: var(--danger-text); font-weight: 600; }
fieldset { border: 0; min-width: 0; }

.identity-row { display: flex; gap: 22px; align-items: center; }
.identity-preview { display: flex; flex-direction: column; align-items: center; gap: 8px; flex: none; }
.identity-preview .nf-avatar { box-shadow: 0 0 0 4px var(--surface), 0 0 0 5px color-mix(in srgb, var(--accent) 40%, transparent), 0 14px 32px var(--glow); }
.identity-caption { font-size: 12px; color: var(--text-muted); text-align: center; max-width: 140px; }
.identity-fields { flex: 1; min-width: 0; }
.identity-fields .field-input { font-size: 15px; padding: 11px 13px; }

.avatar-picker { margin-top: 22px; }
.avatar-options { display: grid; grid-template-columns: repeat(auto-fill, minmax(60px, 1fr)); gap: 10px; }
.avatar-option { position: relative; display: flex; flex-direction: column; align-items: center; gap: 6px; cursor: pointer; padding: 8px 4px; border-radius: 14px; border: 1px solid transparent; transition: background 0.15s ease, border-color 0.15s ease; }
.avatar-option:hover { background: var(--surface-sunken); }
.avatar-option input { position: absolute; opacity: 0; pointer-events: none; }
.avatar-option .nf-avatar { --size: 46px; transition: transform 0.15s ease, box-shadow 0.15s ease; }
.avatar-option span.label { font-size: 11.5px; color: var(--text-muted); text-align: center; line-height: 1.2; }
.avatar-option:has(input:checked) { background: var(--surface-sunken); border-color: color-mix(in srgb, var(--accent) 50%, var(--border)); }
.avatar-option:has(input:checked) .nf-avatar { box-shadow: 0 0 0 3px var(--surface), 0 0 0 5px var(--accent); }
.avatar-option:has(input:checked) span.label { color: var(--text-main); font-weight: 600; }
.avatar-option:has(input:focus-visible) { outline: 2px solid var(--accent); outline-offset: 2px; }

.upload-box { margin-top: 20px; padding-top: 18px; border-top: 1px solid var(--border); }
.upload-actions { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 8px; }
.btn-danger-soft { color: var(--danger-text); }
.btn-danger-soft:hover { border-color: color-mix(in srgb, var(--red) 45%, var(--border-strong)); background: color-mix(in srgb, var(--red) 8%, var(--surface-raised)); }
.crop-panel { display: grid; grid-template-columns: 220px minmax(0, 1fr); gap: 18px; align-items: start; margin-top: 14px; padding: 14px; border-radius: 14px; background: var(--surface-sunken); border: 1px solid var(--border); }
.crop-stage { position: relative; width: 220px; height: 220px; border-radius: 12px; overflow: hidden; cursor: grab; touch-action: none; background: var(--track); }
.crop-stage:active { cursor: grabbing; }
.crop-stage:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; }
.crop-stage canvas { width: 100%; height: 100%; display: block; }
.crop-ring { position: absolute; inset: 0; pointer-events: none; border-radius: 12px; box-shadow: inset 0 0 0 2px color-mix(in srgb, #fff 70%, transparent); background: radial-gradient(circle at center, transparent 69.5%, rgba(0, 0, 0, 0.45) 70.5%); }
.crop-controls { display: flex; flex-direction: column; gap: 10px; min-width: 0; }
.crop-controls input[type="range"] { width: 100%; accent-color: var(--accent); }
.crop-buttons { display: flex; gap: 8px; flex-wrap: wrap; }

.account-facts { display: grid; gap: 10px; margin-top: 20px; padding-top: 18px; border-top: 1px solid var(--border); }
.account-facts div { display: grid; grid-template-columns: 120px minmax(0, 1fr); gap: 12px; font-size: 13px; align-items: baseline; }
.account-facts dt { color: var(--text-muted); }
.account-facts dd { color: var(--text-main); overflow-wrap: anywhere; }
.account-facts code { font-family: ui-monospace, SFMono-Regular, Menlo, monospace; font-size: 12px; color: var(--text-soft); }
.account-note { margin-top: 10px; }

.theme-options { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 10px; }
.theme-option {
  position: relative; display: flex; flex-direction: column; gap: 6px; padding: 10px; border-radius: 14px; cursor: pointer;
  border: 1px solid var(--border); background: var(--surface-sunken); transition: border-color 0.15s ease, transform 0.15s ease;
}
.theme-option:hover { border-color: var(--border-hover); transform: translateY(-1px); }
.theme-option input { position: absolute; opacity: 0; pointer-events: none; }
.theme-option:has(input:checked) { border-color: var(--accent); box-shadow: 0 0 0 1px var(--accent); }
.theme-option:has(input:focus-visible) { outline: 2px solid var(--accent); outline-offset: 2px; }
.theme-swatch { display: grid; grid-template-columns: 26% 1fr; grid-template-rows: 1fr 1fr; gap: 4px; height: 64px; padding: 6px; border-radius: 9px; border: 1px solid rgba(127, 127, 127, 0.25); }
.theme-swatch i { border-radius: 4px; }
.theme-swatch i:first-child { grid-row: 1 / -1; }
.theme-swatch[data-swatch="default"] { background: #09090b; }
.theme-swatch[data-swatch="default"] i:nth-child(1) { background: #0c0c0f; box-shadow: inset 2px 0 0 #00d9ff; }
.theme-swatch[data-swatch="default"] i:nth-child(2) { background: #141417; }
.theme-swatch[data-swatch="default"] i:nth-child(3) { background: linear-gradient(90deg, #00d9ff 40%, #141417 40%); }
.theme-swatch[data-swatch="light"] { background: #f4f5f8; }
.theme-swatch[data-swatch="light"] i:nth-child(1) { background: #ffffff; box-shadow: inset 2px 0 0 #0e7490; }
.theme-swatch[data-swatch="light"] i:nth-child(2) { background: #ffffff; border: 1px solid #e1e4ea; }
.theme-swatch[data-swatch="light"] i:nth-child(3) { background: linear-gradient(90deg, #16181d 40%, #ffffff 40%); border: 1px solid #e1e4ea; }
.theme-swatch[data-swatch="dark"] { background: #0f141a; }
.theme-swatch[data-swatch="dark"] i:nth-child(1) { background: #121820; box-shadow: inset 2px 0 0 #7cc7e8; }
.theme-swatch[data-swatch="dark"] i:nth-child(2) { background: #171e27; }
.theme-swatch[data-swatch="dark"] i:nth-child(3) { background: linear-gradient(90deg, #7cc7e8 40%, #171e27 40%); }
.theme-text { display: flex; flex-direction: column; gap: 2px; }
.theme-name { font-size: 13.5px; font-weight: 650; }
.theme-desc { font-size: 12px; color: var(--text-muted); line-height: 1.4; }

.accent-picker { margin-top: 20px; }
.accent-options { display: flex; flex-wrap: wrap; gap: 8px; }
.accent-option {
  position: relative; display: inline-flex; align-items: center; gap: 8px; padding: 7px 12px 7px 8px; border-radius: 999px; cursor: pointer;
  border: 1px solid var(--border); background: var(--surface-sunken); font-size: 13px; color: var(--text-soft); transition: border-color 0.15s ease;
}
.accent-option:hover { border-color: var(--border-hover); }
.accent-option input { position: absolute; opacity: 0; pointer-events: none; }
.accent-option:has(input:checked) { border-color: var(--accent); color: var(--text-main); font-weight: 600; }
.accent-option:has(input:focus-visible) { outline: 2px solid var(--accent); outline-offset: 2px; }
.accent-dot { width: 18px; height: 18px; border-radius: 50%; flex: none; box-shadow: inset 0 0 0 1px rgba(0, 0, 0, 0.15); }
.accent-dot[data-accent="default"] { background: #00d9ff; }
.accent-dot[data-accent="blue"] { background: #60a5fa; }
.accent-dot[data-accent="purple"] { background: #a78bfa; }
.accent-dot[data-accent="green"] { background: #4ade80; }
.accent-dot[data-accent="orange"] { background: #fb923c; }
:root[data-theme="dark"] .accent-dot[data-accent="default"] { background: #7cc7e8; }
:root[data-theme="light"] .accent-dot[data-accent="default"] { background: #0e7490; }
:root[data-theme="light"] .accent-dot[data-accent="blue"] { background: #1d4ed8; }
:root[data-theme="light"] .accent-dot[data-accent="purple"] { background: #6d28d9; }
:root[data-theme="light"] .accent-dot[data-accent="green"] { background: #15803d; }
:root[data-theme="light"] .accent-dot[data-accent="orange"] { background: #c2410c; }
.accent-option:has(input:checked) .accent-dot { box-shadow: 0 0 0 2px var(--surface-sunken), 0 0 0 4px var(--accent); }

/* Live sample of the chosen look, including status colours */
.appearance-sample { margin-top: 20px; padding: 16px; border-radius: 14px; border: 1px solid var(--border); background: linear-gradient(180deg, var(--surface-raised), var(--surface-sunken)); }
.sample-head { display: flex; align-items: center; gap: 10px; margin-bottom: 10px; }
.sample-head b { font-size: 14px; }
.sample-text { font-size: 13px; color: var(--text-soft); line-height: 1.5; margin-bottom: 12px; }
.sample-text a { color: var(--accent); }
.sample-row { display: flex; flex-wrap: wrap; gap: 8px; align-items: center; }
.sample-row .btn-primary, .sample-row .btn-action { padding: 7px 12px; font-size: 12.5px; pointer-events: none; }
.sample-chip { display: inline-flex; align-items: center; gap: 6px; font-size: 12px; font-weight: 600; padding: 4px 10px; border-radius: 999px; border: 1px solid; }
.sample-chip::before { content: ""; width: 7px; height: 7px; border-radius: 50%; background: currentColor; }
.sample-chip.ok { color: var(--success-text); border-color: color-mix(in srgb, var(--green) 35%, transparent); background: color-mix(in srgb, var(--green) 8%, transparent); }
.sample-chip.warn { color: var(--warning-text); border-color: color-mix(in srgb, var(--amber) 35%, transparent); background: color-mix(in srgb, var(--amber) 8%, transparent); }
.sample-chip.live { color: var(--danger-text); border-color: color-mix(in srgb, var(--red) 35%, transparent); background: color-mix(in srgb, var(--red) 8%, transparent); }
.sample-chart { display: flex; align-items: flex-end; gap: 5px; height: 46px; margin-top: 14px; padding-bottom: 2px; border-bottom: 1px solid var(--border); }
.sample-chart i { flex: 1; border-radius: 3px 3px 0 0; background: color-mix(in srgb, var(--accent) 78%, transparent); }

.profile-actions {
  position: sticky; bottom: 0; z-index: 15; display: flex; align-items: center; justify-content: flex-end; gap: 10px; flex-wrap: wrap;
  margin-top: 20px; padding: 14px 18px; border-radius: 16px; border: 1px solid var(--border-strong);
  background: var(--header-bg); backdrop-filter: blur(14px); box-shadow: 0 -8px 30px color-mix(in srgb, var(--shadow-color) 40%, transparent);
}
.profile-status { flex: 1; min-width: 180px; font-size: 13px; color: var(--text-muted); line-height: 1.45; }
.profile-status[data-state="error"] { color: var(--danger-text); }
.profile-status[data-state="success"] { color: var(--success-text); }
.profile-status[data-state="dirty"] { color: var(--warning-text); }
.profile-actions .btn-primary { min-width: 140px; }
.spinner { width: 14px; height: 14px; border-radius: 50%; border: 2px solid currentColor; border-right-color: transparent; animation: spin 0.8s linear infinite; }
@keyframes spin { to { transform: rotate(360deg); } }



/* ---------- Motion and small screens ---------- */
@media (prefers-reduced-motion: reduce) {
  .account-dropdown { animation: none; }
  .theme-option:hover { transition: none; transform: none; }
  .spinner { animation-duration: 2.4s; }
  .account-button .icon { transition: none; }
}
@media (max-width: 1100px) {
  .profile-grid { grid-template-columns: 1fr; }
}
@media (max-width: 760px) {
  .identity-row { flex-direction: column; align-items: stretch; }
  .identity-preview { align-self: center; }
  .crop-panel { grid-template-columns: 1fr; justify-items: center; }
  .crop-controls { width: 100%; }
  .account-facts div { grid-template-columns: 1fr; gap: 2px; }
}
@media (max-width: 640px) {
  .theme-options { grid-template-columns: 1fr; }
  .theme-option { flex-direction: row; align-items: center; }
  .theme-swatch { width: 84px; height: 52px; flex: none; }
  .theme-text { display: flex; flex-direction: column; gap: 2px; }
  .profile-actions { padding: 12px; }
  .profile-actions .btn-primary, .profile-actions .btn-action { flex: 1; }
  .profile-status { flex-basis: 100%; }
  .account-dropdown { position: fixed; top: 64px; right: 12px; left: 12px; width: auto; }
}

/* Profile settings → Sign-in and security (account-security.js) */
.security-card { margin-top: 20px; scroll-margin-top: 80px; }
.security-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 20px; }
.security-form { display: flex; flex-direction: column; gap: 8px; padding: 18px; border-radius: 14px; background: var(--surface-sunken); border: 1px solid var(--border); }
.security-form [hidden] { display: none !important; }
.security-title { font-size: 15px; font-weight: 650; }
.security-current { font-size: 13px; color: var(--text-soft); overflow-wrap: anywhere; }
.security-current b { color: var(--text-main); font-weight: 600; }
.security-pending { padding: 10px 12px; border-radius: 10px; font-size: 12.5px; line-height: 1.45; color: var(--warning-text); background: color-mix(in srgb, var(--amber) 9%, transparent); border: 1px solid color-mix(in srgb, var(--amber) 30%, var(--border)); overflow-wrap: anywhere; }
.security-field { display: flex; flex-direction: column; gap: 6px; margin-top: 4px; }
#acctPasswordFields, #acctPasswordLink { display: flex; flex-direction: column; gap: 8px; }
.security-show { display: inline-flex; align-items: center; gap: 8px; width: fit-content; font-size: 13px; color: var(--text-soft); cursor: pointer; }
.security-show input { width: 16px; height: 16px; accent-color: var(--accent); }
.security-form .field-input[aria-invalid="true"] { border-color: color-mix(in srgb, var(--red) 60%, var(--border-strong)); }
@media (max-width: 860px) { .security-grid { grid-template-columns: 1fr; } }

/* The Save changes bar slides up when something is changed (profile.js shows it only then) */
.profile-actions { animation: profile-bar-in 0.28s cubic-bezier(0.2, 0.7, 0.2, 1); }
@keyframes profile-bar-in { from { opacity: 0; transform: translateY(14px); } to { opacity: 1; transform: none; } }
@media (prefers-reduced-motion: reduce) { .profile-actions { animation: none; } }