/* ── Tokens ───────────────────────────────── */
:root {
    --bg:         #FAFAF8;
    --surface:    #FFFFFF;
    --border:     #E8E8E3;
    --border-mid: #D4D4CE;
    --ink-1:      #0F1624;
    --ink-2:      #3A4255;
    --ink-3:      #6B7280;
    --ink-4:      #9AA1AD;
    --blue:       #1D4ED8;
    --blue-bg:    #EBF0FD;
    --rose:       #E11D48;
    --rose-bg:    #FFE4E6;
    --font-body:  'DM Sans', system-ui, sans-serif;
    --font-tight: 'Inter Tight', system-ui, sans-serif;
    --font-mono:  'JetBrains Mono', monospace;
    --radius-md:  10px;
    --radius-lg:  14px;
    --ease-out:   cubic-bezier(.2,.7,.3,1);
}

*, *::before, *::after { box-sizing: border-box; }

html, body {
    margin: 0; padding: 0; height: 100%;
    background: var(--bg);
    font-family: var(--font-body);
    color: var(--ink-1);
    -webkit-font-smoothing: antialiased;
}

/* ── Layout ───────────────────────────────── */
.pf-login {
    min-height: 100vh;
    display: grid;
    grid-template-columns: 1fr 1fr;
}

/* ── Left panel — brand ───────────────────── */
.pf-login__brand {
    background: var(--ink-1);
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    padding: 48px;
    position: relative;
    overflow: hidden;
}

/* Subtle dot-grid texture */
.pf-login__brand::before {
    content: '';
    position: absolute;
    inset: 0;
    background-image: radial-gradient(circle, rgba(255,255,255,.07) 1px, transparent 1px);
    background-size: 28px 28px;
    pointer-events: none;
}

/* Glow orb */
.pf-login__brand::after {
    content: '';
    position: absolute;
    width: 420px; height: 420px;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(29,78,216,.35) 0%, transparent 70%);
    bottom: -100px; left: -80px;
    pointer-events: none;
}

.pf-login__logo {
    display: flex;
    align-items: center;
    gap: 10px;
    position: relative;
    z-index: 1;
}

.pf-login__logo-mark {
    width: 36px; height: 36px;
    background: var(--blue);
    border-radius: 9px;
    display: flex; align-items: center; justify-content: center;
    color: #fff; font-size: 16px;
}

.pf-login__logo-name {
    font-family: var(--font-tight);
    font-size: 17px; font-weight: 700;
    color: #fff; letter-spacing: -.01em;
}

.pf-login__brand-body {
    position: relative; z-index: 1;
}

.pf-login__kicker {
    font-family: var(--font-mono);
    font-size: 10.5px; letter-spacing: .14em;
    text-transform: uppercase;
    color: rgba(255,255,255,.4);
    margin-bottom: 16px;
}

.pf-login__headline {
    font-family: var(--font-tight);
    font-size: 36px; font-weight: 700;
    letter-spacing: -.03em;
    color: #fff;
    line-height: 1.15;
    margin: 0 0 20px;
}

.pf-login__headline em {
    font-style: normal;
    color: var(--blue);
    background: linear-gradient(90deg, #60A5FA, #818CF8);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.pf-login__desc {
    font-size: 14.5px;
    color: rgba(255,255,255,.5);
    line-height: 1.6;
    max-width: 320px;
}

.pf-login__pills {
    display: flex; gap: 8px; flex-wrap: wrap;
    position: relative; z-index: 1;
}

.pf-login__pill {
    background: rgba(255,255,255,.07);
    border: 1px solid rgba(255,255,255,.1);
    border-radius: 999px;
    padding: 5px 12px;
    font-size: 12px; font-weight: 500;
    color: rgba(255,255,255,.55);
    display: flex; align-items: center; gap: 6px;
}

.pf-login__pill i { font-size: 10px; color: rgba(255,255,255,.3); }

/* ── Right panel — form ───────────────────── */
.pf-login__form-panel {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 48px 40px;
    background: var(--surface);
}

.pf-login__form-wrap {
    width: 100%;
    max-width: 360px;
}

.pf-login__form-kicker {
    font-family: var(--font-mono);
    font-size: 10.5px; letter-spacing: .12em;
    text-transform: uppercase; color: var(--ink-4);
    margin-bottom: 6px;
}

.pf-login__form-title {
    font-family: var(--font-tight);
    font-size: 24px; font-weight: 700;
    letter-spacing: -.02em; color: var(--ink-1);
    margin: 0 0 32px;
}

/* Fields */
.pf-field { margin-bottom: 18px; }

.pf-field label {
    display: block;
    font-size: 12px; font-weight: 600;
    letter-spacing: .04em; text-transform: uppercase;
    color: var(--ink-3);
    margin-bottom: 7px;
}

.pf-field__input-wrap {
    position: relative;
}

.pf-field__icon {
    position: absolute;
    left: 12px; top: 50%;
    transform: translateY(-50%);
    color: var(--ink-4);
    font-size: 13px;
    pointer-events: none;
    transition: color .15s;
}

.pf-field input {
    width: 100%;
    height: 42px;
    padding: 0 12px 0 36px;
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    background: var(--bg);
    font-family: var(--font-body);
    font-size: 14px; color: var(--ink-1);
    outline: none;
    transition: border-color .15s, box-shadow .15s, background .15s;
}

.pf-field input::placeholder { color: var(--ink-4); }

.pf-field input:focus {
    border-color: var(--blue);
    box-shadow: 0 0 0 3px rgba(29,78,216,.1);
    background: var(--surface);
}

.pf-field__input-wrap:focus-within .pf-field__icon {
    color: var(--blue);
}

/* Password toggle */
.pf-field__toggle {
    position: absolute;
    right: 10px; top: 50%;
    transform: translateY(-50%);
    background: none; border: none;
    color: var(--ink-4); font-size: 13px;
    cursor: pointer; padding: 4px;
    border-radius: 4px;
    transition: color .12s;
}
.pf-field__toggle:hover { color: var(--ink-2); }

/* Error banner */
.pf-login__error {
    background: var(--rose-bg);
    border: 1px solid #FCA5A5;
    border-radius: var(--radius-md);
    padding: 10px 14px;
    font-size: 13px; color: var(--rose);
    margin-bottom: 18px;
    display: flex; align-items: center; gap: 8px;
}
.pf-login__error.hidden { display: none; }
.pf-login__error i { font-size: 12px; flex-shrink: 0; }

/* Submit button */
.pf-login__submit {
    width: 100%; height: 44px;
    background: var(--blue);
    color: #fff;
    border: none; border-radius: var(--radius-md);
    font-family: var(--font-body);
    font-size: 14px; font-weight: 600;
    cursor: pointer;
    display: flex; align-items: center; justify-content: center; gap: 8px;
    transition: opacity .15s, transform .1s;
    margin-top: 8px;
    position: relative;
    overflow: hidden;
}

.pf-login__submit:hover  { opacity: .88; }
.pf-login__submit:active { transform: scale(.98); }
.pf-login__submit:disabled { opacity: .6; cursor: not-allowed; }

/* Spinner */
.pf-spinner {
    width: 16px; height: 16px;
    border: 2px solid rgba(255,255,255,.3);
    border-top-color: #fff;
    border-radius: 50%;
    animation: spin .6s linear infinite;
    display: none;
}
.pf-login__submit.loading .pf-spinner   { display: block; }
.pf-login__submit.loading .pf-btn-label { display: none; }

/* ── Animations ───────────────────────────── */
@keyframes spin {
    to { transform: rotate(360deg); }
}

@keyframes fadeUp {
    from { opacity: 0; transform: translateY(14px); }
    to   { opacity: 1; transform: translateY(0); }
}

@keyframes shake {
    0%,100% { transform: translateX(0); }
    20%     { transform: translateX(-6px); }
    40%     { transform: translateX(6px); }
    60%     { transform: translateX(-4px); }
    80%     { transform: translateX(4px); }
}

.pf-login__form-wrap > * {
    animation: fadeUp .35s var(--ease-out) both;
}
.pf-login__form-wrap > *:nth-child(1) { animation-delay: .05s; }
.pf-login__form-wrap > *:nth-child(2) { animation-delay: .10s; }
.pf-login__form-wrap > *:nth-child(3) { animation-delay: .15s; }
.pf-login__form-wrap > *:nth-child(4) { animation-delay: .18s; }
.pf-login__form-wrap > *:nth-child(5) { animation-delay: .21s; }

/* ── Responsive ───────────────────────────── */
@media (max-width: 768px) {
    .pf-login { grid-template-columns: 1fr; }

    .pf-login__brand {
        padding: 32px 24px 36px;
        min-height: auto;
    }

    .pf-login__headline { font-size: 26px; }
    .pf-login__desc     { display: none; }

    .pf-login__form-panel { padding: 36px 24px; }
    .pf-login__form-wrap  { max-width: 100%; }
}