/* ==========================================================================
   TeslassetStock — authentication pages
   Mirrors the light split layout of the public website's login/register pages
   so signing in feels like a continuation of the marketing site.
   ========================================================================== */
:root {
  --c-primary: #1e40af;
  --c-blue: #2563eb;
  --c-blue-50: #eef3ff;
  --c-ink: #0f172a;
  --c-text: #111827;
  --c-text-2: #334155;
  --c-muted: #64748b;
  --c-line: #e2e8f0;
  --c-bg: #f5f7fb;
  --c-success: #15803d;
  --c-danger: #dc2626;
  --d-bg: #0a1122;
  --font-sans: "Inter", system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  --font-display: "Plus Jakarta Sans", "Inter", system-ui, sans-serif;
}
*, *::before, *::after { box-sizing: border-box; }
body { margin: 0; font-family: var(--font-sans); color: var(--c-text); background: #fff; -webkit-font-smoothing: antialiased; line-height: 1.6; }
img, svg { display: block; max-width: 100%; }
a { color: var(--c-blue); text-decoration: none; font-weight: 500; }
a:hover { text-decoration: underline; }
h1, h2, p { margin: 0; }
button, input, select { font: inherit; color: inherit; }
:focus-visible { outline: 2px solid var(--c-blue); outline-offset: 3px; border-radius: 6px; }
.icon { width: 18px; height: 18px; fill: none; stroke: currentColor; stroke-width: 1.8; stroke-linecap: round; stroke-linejoin: round; flex: none; }
.icon--sm { width: 15px; height: 15px; }
.sr-only { position: absolute !important; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }
.skip-link { position: absolute; left: 12px; top: -80px; padding: 10px 14px; background: #fff; color: var(--c-ink); border-radius: 10px; box-shadow: 0 8px 24px rgba(15,23,42,.15); z-index: 10; }
.skip-link:focus { top: 12px; }

.auth { min-height: 100vh; display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); }
.auth__form-side { display: flex; flex-direction: column; padding: 28px clamp(16px, 4vw, 32px) 40px; }
.auth__top { display: flex; align-items: center; justify-content: space-between; gap: 12px; }
.auth__back { display: inline-flex; align-items: center; gap: 6px; font-size: 0.875rem; color: var(--c-muted); font-weight: 500; }
.auth__back:hover { color: var(--c-ink); text-decoration: none; }
.auth__wrap { width: 100%; max-width: 440px; margin: auto; padding-block: 36px; }
.auth__wrap h1 { font-family: var(--font-display); font-size: clamp(1.75rem, 3vw, 2.25rem); letter-spacing: -0.03em; line-height: 1.15; color: var(--c-ink); margin-bottom: 10px; }
.auth__lead { color: var(--c-muted); margin-bottom: 28px; }
.auth__switch { text-align: center; margin-top: 22px; color: var(--c-muted); font-size: 0.92rem; }
.auth__switch a { font-weight: 600; }
.auth__visual { position: relative; display: flex; align-items: flex-end; padding: clamp(32px, 5vw, 64px); color: #fff; background: var(--d-bg); overflow: hidden; isolation: isolate; }
.auth__visual > img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; z-index: -2; }
.auth__visual::before { content: ""; position: absolute; inset: 0; z-index: -1; background: linear-gradient(180deg, rgba(10,17,34,.15), rgba(10,17,34,.92) 85%); }
.auth__visual h2 { font-family: var(--font-display); font-size: clamp(1.6rem, 2.6vw, 2.2rem); letter-spacing: -0.03em; line-height: 1.15; margin-bottom: 12px; max-width: 18ch; }
.auth__visual p { color: #cbd5e1; max-width: 44ch; }
.auth__visual ul { list-style: none; padding: 0; margin: 22px 0 0; display: grid; gap: 10px; color: #e2e8f0; }
.auth__visual li { display: flex; gap: 10px; }
.auth__visual li .icon { color: #60a5fa; margin-top: 3px; }
.auth--admin .auth__visual::before { background: linear-gradient(180deg, rgba(30,27,75,.35), rgba(10,17,34,.95) 80%); }

.logo { display: inline-flex; align-items: center; gap: 10px; font-family: var(--font-display); font-weight: 700; font-size: 1.12rem; letter-spacing: -0.02em; color: var(--c-ink); }
.logo:hover { text-decoration: none; }
.logo__mark { width: 34px; height: 34px; }
.logo b { color: var(--c-blue); font-weight: 700; }
.logo small { margin-left: 4px; padding: 2px 8px; border-radius: 999px; background: #eef2ff; color: #4338ca; font-size: 0.66rem; font-weight: 700; letter-spacing: 0.1em; text-transform: uppercase; font-family: var(--font-sans); }

.form { display: grid; gap: 18px; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.field { display: grid; gap: 6px; }
.field label { font-size: 0.88rem; font-weight: 600; color: var(--c-ink); }
.field__hint { font-size: 0.8rem; color: var(--c-muted); }
.field__error { display: flex; align-items: center; gap: 6px; font-size: 0.82rem; color: var(--c-danger); }
.input { width: 100%; min-height: 50px; padding: 12px 16px; border-radius: 10px; border: 1px solid #cfd8e3; background: #fff; color: var(--c-ink); transition: border-color .2s, box-shadow .2s; }
.input::placeholder { color: #94a3b8; }
.input:hover { border-color: #94a3b8; }
.input:focus { outline: none; border-color: var(--c-blue); box-shadow: 0 0 0 4px rgba(37,99,235,.15); }
.has-error .input { border-color: var(--c-danger); }
.input-group { position: relative; }
.input-group .input { padding-right: 52px; }
.input-group__btn { position: absolute; right: 6px; top: 50%; transform: translateY(-50%); width: 40px; height: 40px; border: 0; background: none; border-radius: 8px; display: grid; place-items: center; color: var(--c-muted); cursor: pointer; }
.input-group__btn:hover { background: #eef2f7; color: var(--c-ink); }
.strength { display: grid; grid-template-columns: repeat(4, 1fr); gap: 4px; }
.strength i { height: 4px; border-radius: 4px; background: var(--c-line); }
.strength[data-score="1"] i:nth-child(-n+1) { background: var(--c-danger); }
.strength[data-score="2"] i:nth-child(-n+2) { background: #f59e0b; }
.strength[data-score="3"] i:nth-child(-n+3) { background: var(--c-blue); }
.strength[data-score="4"] i { background: #16a34a; }
.check { display: flex; align-items: flex-start; gap: 10px; font-size: 0.9rem; color: var(--c-text-2); cursor: pointer; }
.check input { width: 18px; height: 18px; margin: 2px 0 0; accent-color: var(--c-blue); flex: none; }
.form-meta { display: flex; align-items: center; justify-content: space-between; gap: 12px; flex-wrap: wrap; font-size: 0.9rem; }
.btn { display: inline-flex; align-items: center; justify-content: center; gap: 8px; min-height: 52px; padding: 0 24px; border-radius: 999px; border: 1px solid var(--c-blue); background: var(--c-blue); color: #fff; font-weight: 600; font-size: 1rem; cursor: pointer; box-shadow: 0 10px 30px -10px rgba(37,99,235,.55); transition: background-color .2s; width: 100%; }
.btn:hover { background: var(--c-primary); border-color: var(--c-primary); }
.btn--outline { background: #fff; color: var(--c-ink); border-color: var(--c-line); box-shadow: none; }
.btn--outline:hover { background: #f8fafc; border-color: var(--c-ink); }
.auth--admin .btn { background: #4f46e5; border-color: #4f46e5; box-shadow: 0 10px 30px -10px rgba(79,70,229,.55); }
.auth--admin .btn:hover { background: #4338ca; }
.alert { display: flex; gap: 12px; align-items: flex-start; padding: 14px 16px; border-radius: 14px; font-size: 0.92rem; border: 1px solid; margin-bottom: 20px; }
.alert .icon { margin-top: 2px; }
.alert--success { background: #e8f7ee; border-color: #bbe5c8; color: #14532d; }
.alert--error { background: #fdecec; border-color: #f5c2c2; color: #7f1d1d; }
.alert--info { background: var(--c-blue-50); border-color: #dbe6fe; color: #17358f; }
.risk { margin-top: 28px; font-size: 0.78rem; color: var(--c-muted); line-height: 1.6; }

@media (max-width: 1024px) {
  .auth { grid-template-columns: minmax(0, 1fr); }
  .auth__visual { display: none; }
}
@media (max-width: 480px) {
  .form-row { grid-template-columns: 1fr; }
}