/* ==========================================================================
   Keep a Secret (صندوق الأسرار) — service styles. Builds on unified-glass.css + site-shell.css tokens.
   Dark is the default; html.light-mode overrides. Logical properties for RTL/LTR.
   ========================================================================== */
:root {
  --sk-accent: #c4b5fd;          /* violet-300 on dark: 10.9:1 on #0b0f19 */
  --sk-accent-2: #f9a8d4;        /* pink-300 */
  --sk-grad: linear-gradient(135deg, var(--brand) 0%, #9d174d 100%); /* white text >= 5.6:1 across */
  --sk-grad-hover: linear-gradient(135deg, #5b21b6 0%, #831843 100%);
  --sk-surface: rgba(139, 92, 246, .10);
  --sk-surface-2: rgba(244, 114, 182, .08);
  --sk-border: rgba(196, 181, 253, .28);
  --sk-unread: #f472b6;
  --sk-danger-text: #fca5a5;
  --sk-ok-text: #86efac;
}
html.light-mode, [data-theme="light"] {
  --sk-accent: var(--brand);          /* 7.1:1 on #f8fafc */
  --sk-accent-2: #be185d;
  --sk-surface: rgba(109, 40, 217, .07);
  --sk-surface-2: rgba(190, 24, 93, .06);
  --sk-border: rgba(109, 40, 217, .22);
  --sk-unread: #be185d;
  --sk-danger-text: #b91c1c;
  --sk-ok-text: #15803d;
}

.sk-narrow { max-width: 600px; }
.sk-wide { max-width: 880px; }
.sk-center { justify-content: center; text-align: center; width: 100%; }
.sk-small { font-size: .85rem; }
.sk-page main { padding-bottom: 24px; }
.sk-page .breadcrumbs { margin-top: 18px; }
.sk-card { margin-top: 8px; }
.sk-card h1, .sk-card h2 { line-height: 1.25; }

/* ---------- buttons ---------- */
.sk-btn-primary { background: var(--sk-grad); color: #fff; box-shadow: 0 8px 24px rgba(109, 40, 217, .32); }
.sk-btn-primary:hover { background: var(--sk-grad-hover); }
.sk-btn-danger { background: #b91c1c; color: #fff; }
.sk-btn-danger:hover { background: #991b1b; }
.sk-head-link span { white-space: nowrap; }
@media (max-width: 520px) { .sk-head-link span { display: none; } }

/* ---------- auth ---------- */
.sk-auth { display: grid; gap: 14px; }
.sk-auth__title { margin: 4px 0 0; font-size: clamp(1.35rem, 3.6vw, 1.75rem); }
.sk-auth__links { margin: 4px 0 0; text-align: center; font-size: .92rem; }
.sk-auth__links a, .sk-auth a:not(.btn):not(.sk-tab) { color: var(--sk-accent); }
.sk-tabs { display: grid; grid-template-columns: 1fr 1fr; gap: 4px; padding: 4px; border-radius: 14px; background: var(--glass-bg-subtle); border: 1px solid var(--glass-border); }
.sk-tab { display: flex; align-items: center; justify-content: center; min-height: 40px; border-radius: 10px; text-decoration: none; font-weight: 700; color: var(--glass-text-muted); }
.sk-tab.is-active { background: var(--sk-surface); color: var(--glass-text-main); box-shadow: inset 0 0 0 1px var(--sk-border); }
.sk-pw { position: relative; }
.sk-pw .input { padding-inline-end: 76px; }
.sk-pw__toggle { position: absolute; inset-inline-end: 6px; top: 50%; transform: translateY(-50%); min-height: 32px; padding: 0 10px; border-radius: 8px; border: 1px solid var(--glass-border); background: var(--glass-bg-subtle); color: var(--glass-text-main); font: inherit; font-size: .8rem; font-weight: 700; cursor: pointer; }
.sk-pw .input[dir="ltr"] { text-align: start; }
[dir="rtl"] .sk-pw .input[dir="ltr"] { padding-inline-end: 14px; padding-left: 76px; }
[dir="rtl"] .sk-pw__toggle { inset-inline-end: auto; left: 6px; }
.sk-prefix { display: flex; align-items: stretch; border-radius: 12px; border: 1px solid var(--control-border); background: var(--control-bg); overflow: hidden; }
.sk-prefix:focus-within { border-color: var(--glass-border-focus); box-shadow: var(--focus-ring); }
.sk-prefix__label { display: flex; align-items: center; padding: 0 4px 0 12px; color: var(--glass-text-muted); font-size: .9rem; white-space: nowrap; }
.sk-prefix .input { border: 0; background: transparent; box-shadow: none !important; padding-inline-start: 2px; min-width: 0; }
.sk-check { display: flex; gap: 10px; align-items: flex-start; font-size: .92rem; cursor: pointer; }
.sk-check input { width: 20px; height: 20px; margin: 2px 0 0; accent-color: var(--brand); flex: 0 0 auto; }
.sk-check a { color: var(--sk-accent); }
.sk-or { display: flex; align-items: center; gap: 12px; color: var(--glass-text-muted); font-size: .85rem; margin: 0; }
.sk-or::before, .sk-or::after { content: ""; flex: 1; height: 1px; background: var(--glass-border); }
.sk-google { display: grid; justify-items: center; gap: 8px; min-height: 44px; }
.sk-devlink { word-break: break-all; font-size: .88rem; border-color: rgba(245, 158, 11, .5); background: rgba(245, 158, 11, .1); }
.sk-devlink a { color: var(--sk-accent); }
.sk-mailart { width: 72px; height: 72px; border-radius: 20px; display: grid; place-items: center; background: var(--sk-surface); color: var(--sk-accent); border: 1px solid var(--sk-border); }
.field input[aria-invalid="true"], .sk-check input[aria-invalid="true"] { border-color: var(--danger); outline: 1px solid var(--danger); }
.field .error, .sk-auth .error { color: var(--sk-danger-text); margin: 0; }
.hint.is-ok { color: var(--sk-ok-text); }
.hint.is-bad { color: var(--sk-danger-text); }
.sk-turnstile { min-height: 65px; }

/* ---------- avatar ---------- */
.sk-avatar { --sk-hue: 265; display: inline-grid; place-items: center; flex: 0 0 auto; border-radius: 50%; color: #fff; font-weight: 800; background: linear-gradient(135deg, hsl(var(--sk-hue) 62% 34%), hsl(calc(var(--sk-hue) + 40) 62% 30%)); box-shadow: 0 0 0 3px var(--sk-border); font-family: var(--font-latin); }
.sk-avatar--md { width: 56px; height: 56px; font-size: 1.25rem; }
.sk-avatar--lg { width: 84px; height: 84px; font-size: 1.8rem; }

/* ---------- landing ---------- */
.sk-hero { display: grid; gap: 28px; align-items: center; grid-template-columns: 1fr; padding-block: 28px 8px; }
@media (min-width: 900px) { .sk-hero { grid-template-columns: 1.15fr .85fr; } }
.sk-hero h1 { font-size: clamp(2rem, 5.6vw, 3.3rem); line-height: 1.12; margin: 14px 0 12px; }
.sk-hero .lead { margin: 0 0 20px; }
.sk-hero__visual { display: grid; place-items: center; }
.sk-hero__visual svg { width: min(100%, 360px); height: auto; }
.sk-env-back { fill: var(--sk-surface); stroke: var(--sk-border); }
.sk-env-paper { fill: var(--glass-bg); stroke: var(--sk-border); }
.sk-env-line { stroke: var(--glass-text-dim); }
.sk-env-flap { fill: rgba(139, 92, 246, .18); stroke: var(--sk-border); }
.sk-env-lock { fill: var(--brand); }
.sk-env-heart { fill: var(--sk-unread); }
.sk-section { margin-top: 40px; }
.sk-section > h2 { font-size: clamp(1.3rem, 3vw, 1.75rem); margin: 0 0 14px; }
.sk-steps { counter-reset: sk; display: grid; gap: 14px; grid-template-columns: repeat(auto-fit, minmax(min(100%, 230px), 1fr)); padding: 0; margin: 0; list-style: none; }
.sk-steps li { counter-increment: sk; position: relative; padding: 18px 18px 18px; border-radius: 18px; background: var(--glass-bg); border: 1px solid var(--glass-border); }
.sk-steps li::before { content: counter(sk); display: inline-grid; place-items: center; width: 32px; height: 32px; border-radius: 10px; background: var(--sk-grad); color: #fff; font-weight: 800; margin-bottom: 8px; font-family: var(--font-latin); }
.sk-steps h3 { margin: 0 0 4px; font-size: 1.05rem; }
.sk-steps p { margin: 0; color: var(--glass-text-muted); font-size: .94rem; }
.sk-rules { display: grid; gap: 12px; grid-template-columns: repeat(auto-fit, minmax(min(100%, 260px), 1fr)); margin: 0; padding: 0; list-style: none; }
.sk-rules li { display: flex; gap: 12px; padding: 16px; border-radius: 16px; background: var(--sk-surface); border: 1px solid var(--sk-border); }
.sk-rules li > svg { flex: 0 0 auto; color: var(--sk-accent); margin-top: 3px; }
.sk-rules strong { display: block; margin-bottom: 2px; }
.sk-rules span { color: var(--glass-text-muted); font-size: .93rem; }

/* ---------- send page ---------- */
.sk-recipient { display: flex; align-items: center; gap: 14px; margin-bottom: 16px; }
.sk-recipient h1 { font-size: clamp(1.2rem, 3.6vw, 1.5rem); margin: 0; }
.sk-recipient .sk-handle { color: var(--glass-text-muted); font-size: .9rem; direction: ltr; unicode-bidi: isolate; }
.sk-bio { margin: 0 0 14px; color: var(--glass-text-muted); white-space: pre-wrap; overflow-wrap: anywhere; }
.sk-compose { display: grid; gap: 10px; }
.sk-compose textarea { min-height: 170px; font-size: 1.05rem; line-height: 1.7; }
.sk-compose__foot { display: flex; align-items: center; justify-content: space-between; gap: 12px; flex-wrap: wrap; }
.sk-counter { font-size: .85rem; color: var(--glass-text-muted); font-variant-numeric: tabular-nums; }
.sk-counter.is-over { color: var(--sk-danger-text); font-weight: 700; }
.sk-status { min-height: 1.5em; margin: 0; }
.sk-status.is-ok { color: var(--sk-ok-text); font-weight: 700; }
.sk-status.is-err { color: var(--sk-danger-text); font-weight: 600; }
.sk-sent { text-align: center; display: grid; gap: 12px; justify-items: center; padding: 10px 0; }
.sk-sent__icon { width: 64px; height: 64px; border-radius: 50%; display: grid; place-items: center; background: rgba(34, 197, 94, .14); color: var(--sk-ok-text); }
.sk-cta { margin-top: 18px; display: flex; gap: 12px; align-items: center; justify-content: space-between; flex-wrap: wrap; padding: 16px; border-radius: 16px; background: var(--sk-surface-2); border: 1px dashed var(--sk-border); }
.sk-cta p { margin: 0; }
.sk-unavailable { text-align: center; display: grid; gap: 10px; justify-items: center; }

/* ---------- inbox ---------- */
.sk-topbar { display: flex; align-items: center; justify-content: space-between; gap: 12px; flex-wrap: wrap; margin: 6px 0 14px; }
.sk-topbar h1 { margin: 0; font-size: clamp(1.4rem, 4vw, 1.9rem); display: flex; align-items: center; gap: 10px; }
.sk-badge { display: inline-flex; align-items: center; justify-content: center; min-width: 24px; height: 24px; padding: 0 7px; border-radius: 999px; background: var(--sk-unread); color: #1f0414; font-size: .8rem; font-weight: 800; font-family: var(--font-latin); }
html.light-mode .sk-badge, [data-theme="light"] .sk-badge { color: #fff; }
.sk-badge[hidden] { display: none; }
.sk-banner { display: flex; gap: 12px; align-items: flex-start; padding: 14px 16px; border-radius: 14px; border: 1px solid rgba(245, 158, 11, .5); background: rgba(245, 158, 11, .1); margin-bottom: 14px; }
.sk-banner > svg { flex: 0 0 auto; margin-top: 3px; color: #f59e0b; }
.sk-banner p { margin: 0; }
.sk-banner form { margin-top: 8px; }
.sk-share { display: grid; gap: 12px; margin-bottom: 18px; }
.sk-share__row { display: flex; gap: 8px; flex-wrap: wrap; align-items: center; }
.sk-share__link { flex: 1 1 260px; min-width: 0; direction: ltr; text-align: left; font-family: var(--font-latin); }
.sk-share h2 { margin: 0; font-size: 1.05rem; }
.sk-filters { display: flex; gap: 6px; flex-wrap: wrap; margin-bottom: 14px; }
.sk-filter { display: inline-flex; align-items: center; gap: 6px; min-height: 40px; padding: 6px 14px; border-radius: 999px; border: 1px solid var(--glass-border); background: var(--glass-bg-subtle); color: var(--glass-text-main); font: inherit; font-weight: 700; font-size: .9rem; cursor: pointer; }
.sk-filter[aria-pressed="true"] { background: var(--sk-surface); border-color: var(--sk-border); color: var(--sk-accent); }
.sk-filter__n { font-family: var(--font-latin); font-size: .78rem; color: var(--glass-text-muted); }
.sk-list { display: grid; gap: 12px; }
.sk-msg { position: relative; padding: 16px 16px 12px; border-radius: 18px; background: var(--glass-bg); border: 1px solid var(--glass-border); box-shadow: var(--glass-shadow); transition: border-color .3s; }
.sk-msg.is-unread { border-color: var(--sk-border); box-shadow: var(--glass-shadow), inset 4px 0 0 var(--sk-unread); }
[dir="rtl"] .sk-msg.is-unread { box-shadow: var(--glass-shadow), inset -4px 0 0 var(--sk-unread); }
.sk-msg__head { display: flex; align-items: center; gap: 8px; justify-content: space-between; margin-bottom: 8px; font-size: .82rem; color: var(--glass-text-muted); }
.sk-msg__new { display: inline-flex; align-items: center; gap: 6px; color: var(--sk-unread); font-weight: 800; }
.sk-msg__new::before { content: ""; width: 8px; height: 8px; border-radius: 50%; background: currentColor; }
.sk-msg__body { margin: 0; white-space: pre-wrap; overflow-wrap: anywhere; font-size: 1.04rem; line-height: 1.75; unicode-bidi: plaintext; text-align: start; }
.sk-msg__reported { display: inline-flex; gap: 6px; align-items: center; font-size: .78rem; color: var(--warn); }
.sk-reply { margin-top: 10px; padding: 10px 12px; border-radius: 12px; background: var(--sk-surface); border: 1px solid var(--sk-border); }
.sk-reply__label { font-size: .78rem; font-weight: 800; color: var(--sk-accent); margin: 0 0 2px; }
.sk-reply__text { margin: 0; white-space: pre-wrap; overflow-wrap: anywhere; unicode-bidi: plaintext; text-align: start; }
.sk-reply-form { display: grid; gap: 8px; margin-top: 10px; }
.sk-reply-form textarea { min-height: 90px; }
.sk-msg__actions { display: flex; flex-wrap: wrap; gap: 4px; margin-top: 10px; padding-top: 10px; border-top: 1px solid var(--glass-border); }
.sk-iconbtn { display: inline-flex; align-items: center; gap: 6px; min-height: 38px; padding: 6px 10px; border-radius: 10px; border: 1px solid transparent; background: transparent; color: var(--glass-text-main); font: inherit; font-size: .85rem; font-weight: 600; cursor: pointer; }
.sk-iconbtn:hover { background: var(--glass-bg-subtle); border-color: var(--glass-border); }
.sk-iconbtn[aria-pressed="true"] { color: var(--sk-unread); }
.sk-iconbtn[aria-pressed="true"] svg { fill: currentColor; }
.sk-iconbtn--danger { color: var(--sk-danger-text); }
.sk-iconbtn--push { margin-inline-start: auto; }
@media (max-width: 480px) { .sk-iconbtn__t { position: absolute !important; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; } .sk-iconbtn { padding: 6px 11px; } }
.sk-empty { text-align: center; padding: 36px 16px; color: var(--glass-text-muted); display: grid; gap: 10px; justify-items: center; }
.sk-empty svg { color: var(--sk-accent); }
.sk-more { display: flex; justify-content: center; margin-top: 14px; }
.sk-skeleton { height: 110px; border-radius: 18px; background: linear-gradient(90deg, var(--glass-bg-subtle), var(--sk-surface), var(--glass-bg-subtle)); background-size: 200% 100%; animation: skShimmer 1.4s infinite linear; }
@keyframes skShimmer { to { background-position: -200% 0; } }

/* ---------- dialogs ---------- */
.sk-dialog { width: min(520px, calc(100vw - 24px)); max-height: calc(100vh - 32px); padding: 0; border: 1px solid var(--glass-border); border-radius: 20px; background: var(--bg-base); color: var(--glass-text-main); box-shadow: 0 30px 80px rgba(0, 0, 0, .5); }
.sk-dialog::backdrop { background: rgba(2, 6, 23, .65); }
.sk-dialog__inner { padding: 20px; display: grid; gap: 14px; }
.sk-dialog h2 { margin: 0; font-size: 1.2rem; }
.sk-dialog .btn-row { justify-content: flex-end; }
.sk-reasons { display: grid; gap: 8px; border: 0; margin: 0; padding: 0; }
.sk-reasons legend { font-weight: 700; margin-bottom: 6px; }
.sk-reason { display: flex; gap: 10px; align-items: center; padding: 10px 12px; border-radius: 12px; border: 1px solid var(--glass-border); background: var(--glass-bg-subtle); cursor: pointer; }
.sk-reason input { width: 18px; height: 18px; accent-color: var(--brand); }
.sk-reason:has(input:checked) { border-color: var(--sk-border); background: var(--sk-surface); }
.sk-card-preview { display: grid; place-items: center; background: var(--glass-bg-subtle); border-radius: 14px; padding: 10px; }
.sk-card-preview img { width: auto; max-width: 100%; max-height: 52vh; border-radius: 12px; box-shadow: 0 10px 30px rgba(0, 0, 0, .35); }

/* ---------- settings ---------- */
.sk-settings { display: grid; gap: 18px; }
.sk-settings section { display: grid; gap: 14px; }
.sk-settings h2 { margin: 0; font-size: 1.15rem; }
.sk-settings .sk-sub { margin: -8px 0 0; color: var(--glass-text-muted); font-size: .9rem; }
.sk-switch { display: flex; align-items: flex-start; justify-content: space-between; gap: 16px; padding: 12px 14px; border-radius: 14px; border: 1px solid var(--glass-border); background: var(--glass-bg-subtle); cursor: pointer; }
.sk-switch__text strong { display: block; }
.sk-switch__text span { font-size: .87rem; color: var(--glass-text-muted); }
.sk-switch input { appearance: none; -webkit-appearance: none; flex: 0 0 auto; width: 48px; height: 28px; margin: 2px 0 0; border-radius: 999px; background: var(--control-border); border: 1px solid var(--glass-border); position: relative; cursor: pointer; transition: background .2s; }
.sk-switch input::after { content: ""; position: absolute; top: 3px; inset-inline-start: 3px; width: 20px; height: 20px; border-radius: 50%; background: #fff; box-shadow: 0 1px 4px rgba(0, 0, 0, .35); transition: transform .2s; }
.sk-switch input:checked { background: var(--brand); border-color: var(--brand); }
.sk-switch input:checked::after { transform: translateX(20px); }
[dir="rtl"] .sk-switch input:checked::after { transform: translateX(-20px); }
.sk-switch input:focus-visible { box-shadow: var(--focus-ring); }
.sk-danger-zone { border-color: rgba(239, 68, 68, .45) !important; }
.sk-danger-zone h2 { color: var(--sk-danger-text); }
.sk-kv { display: grid; grid-template-columns: auto 1fr; gap: 6px 14px; margin: 0; font-size: .92rem; }
.sk-kv dt { color: var(--glass-text-muted); }
.sk-kv dd { margin: 0; overflow-wrap: anywhere; }

@media (prefers-reduced-motion: reduce) { .sk-skeleton { animation: none; } }