/* Login / register — one card, OTP via SMS or Bale (same flow as Nazlix), SAMA palette (logo teal + green) */
.sama-auth {
    --sa-ink: #12312f;
    --sa-text: #3f5856;
    --sa-muted: #7b9491;
    --sa-line: #dcecea;
    --sa-soft: #f3faf9;
    --sa-teal: #00a59f;
    --sa-teal-dark: #0f766e;
    --sa-green: #10b981;
    --sa-primary: linear-gradient(135deg, #00a59f 0%, #0f766e 100%);
    --sa-teal-soft: rgba(0, 165, 159, .1);
    --sa-danger: #b42318;
    --sa-danger-soft: #fdf1ef;
    --sa-warn: #8a5a00;
    --sa-warn-soft: #fff7e6;
    --sa-ok: #0b7a55;
    --sa-ok-soft: #ecf8f2;
    padding: clamp(1.5rem, 5vw, 3.5rem) 16px clamp(2.5rem, 6vw, 4.5rem);
    background:
        radial-gradient(circle at 100% 0, rgba(0, 165, 159, .12), transparent 38%),
        radial-gradient(circle at 0 100%, rgba(16, 185, 129, .10), transparent 40%);
    color: var(--sa-text);
}
.sama-auth *, .sama-auth *::before, .sama-auth *::after { box-sizing: border-box; }
.sama-auth a { text-decoration: none; }
.sama-auth [hidden] { display: none !important; }

.sa-card {
    width: 100%;
    max-width: 440px;
    margin: 0 auto;
    background: #fff;
    border: 1px solid var(--sa-line);
    border-radius: 26px;
    box-shadow: 0 24px 60px rgba(15, 118, 110, .10);
    overflow: hidden;
}

/* header */
.sa-head { padding: 30px 28px 6px; text-align: center; }
.sa-logo { display: block; width: 96px; height: auto; margin: 0 auto 16px; }
.sa-logo-fallback {
    width: 56px; height: 56px; margin: 0 auto 16px;
    display: flex; align-items: center; justify-content: center;
    border-radius: 18px; background: var(--sa-teal-soft); color: var(--sa-teal); font-size: 24px;
}
.sa-title { margin: 0; color: var(--sa-ink); font-size: 21px; font-weight: 800; line-height: 1.7; }
.sa-subtitle { margin: 6px 0 0; color: var(--sa-muted); font-size: 13.5px; line-height: 1.9; }

/* tabs: OTP | password */
.sa-tabs {
    display: grid; grid-template-columns: 1fr 1fr; gap: 4px;
    margin: 20px 28px 0; padding: 4px;
    background: var(--sa-soft); border: 1px solid var(--sa-line); border-radius: 16px;
}
.sa-tab {
    border: 0; background: transparent; border-radius: 12px; padding: 10px 8px;
    color: var(--sa-muted); font: inherit; font-size: 13.5px; font-weight: 700; cursor: pointer;
    transition: background-color .2s ease, color .2s ease, box-shadow .2s ease;
}
.sa-tab i { margin-left: 6px; font-size: 13px; }
.sa-tab.is-active { background: #fff; color: var(--sa-teal-dark); box-shadow: 0 2px 10px rgba(15, 118, 110, .12); }
.sa-tab:focus-visible { outline: 2px solid var(--sa-teal); outline-offset: 2px; }

.sa-body { padding: 22px 28px 26px; }
.sa-pane { display: none; }
.sa-pane.is-active { display: block; animation: sa-fade .25s ease; }
.sa-step { display: none; }
.sa-step.is-active { display: block; animation: sa-fade .25s ease; }
@keyframes sa-fade { from { opacity: 0; transform: translateY(4px); } to { opacity: 1; transform: none; } }

/* progress */
.sa-progress { display: flex; justify-content: center; gap: 6px; margin-bottom: 18px; }
.sa-progress span { width: 22px; height: 5px; border-radius: 99px; background: var(--sa-line); transition: all .25s ease; }
.sa-progress span.is-done { background: rgba(0, 165, 159, .45); }
.sa-progress span.is-active { width: 38px; background: var(--sa-primary); }

/* fields */
.sa-label { display: block; margin-bottom: 9px; color: var(--sa-ink); font-size: 13.5px; font-weight: 700; }
.sa-field { position: relative; }
.sa-field > i {
    position: absolute; top: 50%; right: 16px; transform: translateY(-50%);
    color: var(--sa-muted); font-size: 15px; pointer-events: none;
}
.sa-input {
    width: 100%; height: 52px; padding: 0 46px 0 16px;
    border: 1px solid var(--sa-line); border-radius: 16px; background: var(--sa-soft);
    color: var(--sa-ink); font: inherit; font-size: 15px; outline: none;
    transition: border-color .2s ease, background-color .2s ease, box-shadow .2s ease;
}
.sa-input[type="tel"], .sa-input.is-ltr { direction: ltr; text-align: right; letter-spacing: .5px; }
.sa-input::placeholder { color: #a9bfbc; letter-spacing: 0; }
.sa-input:focus { border-color: var(--sa-teal); background: #fff; box-shadow: 0 0 0 4px var(--sa-teal-soft); }
.sa-input.is-invalid { border-color: var(--sa-danger); box-shadow: 0 0 0 4px var(--sa-danger-soft); }
.sa-field-error { margin: 6px 2px 0; color: var(--sa-danger); font-size: 12.5px; }
.sa-group + .sa-group { margin-top: 14px; }

/* channel picker */
.sa-channels-label { display: block; margin: 18px 0 9px; color: var(--sa-text); font-size: 12.5px; font-weight: 700; }
.sa-channels { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; }
.sa-channel {
    position: relative; display: flex; align-items: center; gap: 10px;
    padding: 12px; border: 1.5px solid var(--sa-line); border-radius: 16px; background: #fff;
    cursor: pointer; text-align: right; font: inherit; color: var(--sa-text);
    transition: border-color .2s ease, background-color .2s ease;
}
.sa-channel:hover:not(:disabled) { border-color: rgba(0, 165, 159, .5); }
.sa-channel:focus-visible { outline: 2px solid var(--sa-teal); outline-offset: 2px; }
.sa-channel__icon {
    flex: 0 0 36px; height: 36px; display: flex; align-items: center; justify-content: center;
    border-radius: 12px; background: var(--sa-soft); color: var(--sa-muted); font-size: 16px;
    transition: background-color .2s ease, color .2s ease;
}
.sa-channel__text { display: flex; flex-direction: column; min-width: 0; line-height: 1.5; }
.sa-channel__name { color: var(--sa-ink); font-size: 13.5px; font-weight: 800; }
.sa-channel__hint { color: var(--sa-muted); font-size: 11.5px; }
.sa-channel.is-active { border-color: var(--sa-teal); background: rgba(0, 165, 159, .04); }
.sa-channel.is-active .sa-channel__icon { background: var(--sa-primary); color: #fff; }
.sa-channel.is-active::after {
    content: ""; position: absolute; top: 9px; left: 9px; width: 8px; height: 8px;
    border-radius: 50%; background: var(--sa-teal);
}
.sa-channel:disabled { cursor: not-allowed; background: var(--sa-soft); border-style: dashed; }
.sa-channel:disabled .sa-channel__name { color: var(--sa-muted); }
.sa-channel:disabled .sa-channel__hint { color: var(--sa-warn); font-weight: 700; }

/* buttons */
.sa-btn {
    width: 100%; height: 52px; margin-top: 18px;
    display: inline-flex; align-items: center; justify-content: center; gap: 8px;
    border: 0; border-radius: 16px; background: var(--sa-primary); color: #fff;
    box-shadow: 0 10px 24px rgba(0, 165, 159, .22);
    font: inherit; font-size: 15px; font-weight: 800; cursor: pointer;
    transition: background-color .2s ease, opacity .2s ease, transform .1s ease;
}
.sa-btn:hover:not(:disabled) { filter: brightness(.94); box-shadow: 0 12px 28px rgba(0, 165, 159, .3); }
.sa-btn:active:not(:disabled) { transform: scale(.99); }
.sa-btn:disabled { opacity: .5; cursor: not-allowed; box-shadow: none; }
.sa-btn:focus-visible { outline: 2px solid var(--sa-teal); outline-offset: 3px; }
.sa-btn--teal { background: linear-gradient(135deg, var(--sa-green) 0%, var(--sa-teal) 100%); }
.sa-btn .sa-spinner {
    width: 18px; height: 18px; border: 2px solid rgba(255, 255, 255, .4); border-top-color: #fff;
    border-radius: 50%; animation: sa-spin .7s linear infinite; display: none;
}
.sa-btn.is-busy .sa-spinner { display: inline-block; }
.sa-btn.is-busy .sa-btn__label { opacity: .85; }
@keyframes sa-spin { to { transform: rotate(360deg); } }

.sa-link-btn {
    border: 0; background: none; padding: 0; color: var(--sa-teal-dark);
    font: inherit; font-size: 13px; font-weight: 700; cursor: pointer;
}
.sa-link-btn:hover:not(:disabled) { color: var(--sa-teal); }
.sa-link-btn:disabled { color: var(--sa-muted); cursor: default; }
.sa-back { display: block; margin: 14px auto 0; }

/* otp step */
.sa-sent {
    display: flex; align-items: center; justify-content: space-between; gap: 10px;
    margin-bottom: 16px; padding: 12px 14px;
    background: var(--sa-soft); border: 1px solid var(--sa-line); border-radius: 16px;
    font-size: 13px; line-height: 1.8;
}
.sa-sent strong { color: var(--sa-ink); direction: ltr; unicode-bidi: embed; }
.sa-otp { display: flex; justify-content: center; gap: 8px; direction: ltr; }
.sa-otp input {
    width: 52px; height: 58px; padding: 0;
    border: 1.5px solid var(--sa-line); border-radius: 15px; background: var(--sa-soft);
    color: var(--sa-ink); font: inherit; font-size: 22px; font-weight: 800; text-align: center; outline: none;
    transition: border-color .2s ease, background-color .2s ease, box-shadow .2s ease;
}
.sa-otp input:focus { border-color: var(--sa-teal); background: #fff; box-shadow: 0 0 0 4px var(--sa-teal-soft); }
.sa-otp input.is-filled { background: #fff; border-color: rgba(0, 165, 159, .55); }
.sa-otp.is-invalid input { border-color: var(--sa-danger); animation: sa-shake .3s ease; }
@keyframes sa-shake { 25% { transform: translateX(-3px); } 75% { transform: translateX(3px); } }
.sa-otp-meta {
    display: flex; align-items: center; justify-content: space-between; gap: 8px; flex-wrap: wrap;
    margin-top: 14px; font-size: 12.5px; color: var(--sa-muted);
}
.sa-timer { font-variant-numeric: tabular-nums; }
.sa-timer.is-expired { color: var(--sa-danger); }

/* notices */
.sa-notice {
    display: flex; gap: 10px; align-items: flex-start;
    margin-top: 16px; padding: 12px 14px; border-radius: 14px;
    font-size: 13px; line-height: 1.85;
}
.sa-notice > i { margin-top: 4px; }
.sa-notice[hidden] { display: none; }
.sa-notice--error { background: var(--sa-danger-soft); color: var(--sa-danger); }
.sa-notice--ok { background: var(--sa-ok-soft); color: var(--sa-ok); }
.sa-notice--info { background: var(--sa-soft); color: var(--sa-text); }
.sa-notice--warn { background: var(--sa-warn-soft); color: var(--sa-warn); }
.sa-notice--warn strong { color: var(--sa-ink); }

.sa-offer {
    margin-top: 12px; padding: 14px; text-align: center;
    border: 1.5px dashed rgba(0, 165, 159, .45); border-radius: 16px; background: rgba(0, 165, 159, .04);
}
.sa-offer[hidden] { display: none; }
.sa-offer .sa-btn { margin-top: 0; height: 46px; font-size: 14px; }

/* password pane */
.sa-pass-toggle {
    position: absolute; top: 50%; left: 10px; transform: translateY(-50%);
    border: 0; background: none; padding: 6px 8px; color: var(--sa-muted); cursor: pointer;
}
.sa-pass-toggle:hover { color: var(--sa-teal-dark); }
.sa-hint { margin: 14px 0 0; color: var(--sa-muted); font-size: 12.5px; line-height: 1.9; text-align: center; }

/* footer */
.sa-foot {
    padding: 14px 28px; border-top: 1px solid var(--sa-line); background: var(--sa-soft);
    color: var(--sa-muted); font-size: 12px; text-align: center; line-height: 1.9;
}
.sa-foot a { color: var(--sa-teal-dark); font-weight: 700; }
.sa-foot i { color: var(--sa-teal); margin-left: 4px; }

@media (max-width: 420px) {
    .sa-head { padding: 24px 18px 4px; }
    .sa-tabs { margin: 18px 18px 0; }
    .sa-body { padding: 20px 18px 22px; }
    .sa-foot { padding: 12px 18px; }
    .sa-otp { gap: 6px; }
    .sa-otp input { width: 46px; height: 54px; font-size: 20px; }
    .sa-channel { padding: 10px; gap: 8px; }
    .sa-channel__icon { flex-basis: 32px; height: 32px; }
}
@media (prefers-reduced-motion: reduce) {
    .sama-auth * { animation: none !important; transition: none !important; }
}