/* ===========================================================================
   Auth screens — "Control Room / Signal Terminal" art direction.
   Self-contained dark palette, scoped to .auth. Distinct from the themeable
   app shell on purpose: the sign-in is a fixed, art-directed first impression.
   Type: Instrument Serif (display) · IBM Plex Mono (technical) · Hanken Grotesk (UI)
   =========================================================================== */

.auth {
    /* palette */
    --ink:      #0a0d12;
    --ink-2:    #0e121a;
    --ink-3:    #141a24;
    --line:     rgba(255, 255, 255, 0.08);
    --line-2:   rgba(255, 255, 255, 0.14);
    --text:     #e9ebef;
    --muted:    #828c9b;
    --faint:    #4b5563;
    --signal:   #ffb000;
    --signal-2: #ffc94d;
    --signal-soft: rgba(255, 176, 0, 0.13);
    --ok:       #4ade80;

    /* tokens the shared flash partial expects, mapped to this palette */
    --color-surface: var(--ink-3);
    --color-text: var(--text);
    --color-muted: var(--muted);
    --color-border: var(--line-2);
    --color-success: var(--ok);     --color-success-bg: #11241a;
    --color-danger:  #ff6b6b;       --color-danger-bg:  #251416;
    --color-info:    var(--signal); --color-info-bg:    #241c0c;
    --color-warning: var(--signal); --color-warning-bg: #241c0c;
    --motion-duration: 200ms;

    margin: 0;
    min-height: 100vh;
    background: var(--ink);
    color: var(--text);
    font-family: "Hanken Grotesk", ui-sans-serif, system-ui, sans-serif;
    -webkit-font-smoothing: antialiased;
    text-rendering: optimizeLegibility;
}

.auth * { box-sizing: border-box; }
.auth ::selection { background: var(--signal); color: #1a1300; }

/* --- shell: split stage / form ------------------------------------------- */
.auth-wrap {
    display: grid;
    grid-template-columns: 1.15fr 0.85fr;
    min-height: 100vh;
    position: relative;
}

/* film grain over everything */
.auth-wrap::after {
    content: "";
    position: fixed; inset: 0;
    pointer-events: none; z-index: 50;
    opacity: 0.05; mix-blend-mode: overlay;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='160' height='160'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='2'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
}

/* =======================  LEFT — THE STAGE  ============================== */
.stage {
    position: relative;
    overflow: hidden;
    padding: clamp(2rem, 5vw, 4.5rem);
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    background:
        radial-gradient(120% 90% at 12% 0%, rgba(255, 176, 0, 0.08), transparent 55%),
        radial-gradient(80% 70% at 100% 100%, rgba(40, 70, 120, 0.12), transparent 60%),
        var(--ink-2);
    border-right: 1px solid var(--line);
}
/* blueprint grid */
.stage::before {
    content: "";
    position: absolute; inset: 0; z-index: 0;
    background-image:
        linear-gradient(var(--line) 1px, transparent 1px),
        linear-gradient(90deg, var(--line) 1px, transparent 1px);
    background-size: 46px 46px;
    -webkit-mask-image: radial-gradient(120% 100% at 30% 20%, #000 35%, transparent 80%);
            mask-image: radial-gradient(120% 100% at 30% 20%, #000 35%, transparent 80%);
    opacity: 0.6;
}
/* node constellation canvas */
.stage canvas {
    position: absolute; inset: 0; z-index: 1;
    width: 100%; height: 100%;
    opacity: 0.9;
}
.stage > * { position: relative; z-index: 2; }

/* rotated edge label */
.edge-label {
    position: absolute; left: 1.1rem; top: 50%;
    transform: translateY(-50%) rotate(180deg);
    writing-mode: vertical-rl;
    font-family: "IBM Plex Mono", monospace;
    font-size: 0.66rem; letter-spacing: 0.32em;
    color: var(--faint); text-transform: uppercase;
    z-index: 3;
}

/* top rail: brand mark + status */
.stage-top {
    display: flex; align-items: center; justify-content: space-between;
    gap: 1rem;
}
.brand-mark {
    display: flex; align-items: center; gap: 0.6rem;
    font-family: "IBM Plex Mono", monospace;
    font-size: 0.7rem; letter-spacing: 0.28em;
    text-transform: uppercase; color: var(--muted);
}
.brand-mark .glyph {
    width: 26px; height: 26px; display: grid; place-items: center;
    border: 1px solid var(--line-2); border-radius: 6px;
    color: var(--signal); font-size: 0.9rem;
    box-shadow: inset 0 0 12px rgba(255, 176, 0, 0.18);
}
.status-chip {
    display: inline-flex; align-items: center; gap: 0.5rem;
    font-family: "IBM Plex Mono", monospace;
    font-size: 0.64rem; letter-spacing: 0.2em; text-transform: uppercase;
    color: var(--muted);
    padding: 0.4rem 0.7rem; border: 1px solid var(--line);
    border-radius: 999px; background: rgba(0,0,0,0.2);
}
.status-chip .dot {
    width: 7px; height: 7px; border-radius: 50%; background: var(--ok);
    box-shadow: 0 0 0 0 rgba(74, 222, 128, 0.6);
    animation: pulse 2.4s infinite;
}
@keyframes pulse {
    0%   { box-shadow: 0 0 0 0 rgba(74, 222, 128, 0.5); }
    70%  { box-shadow: 0 0 0 7px rgba(74, 222, 128, 0); }
    100% { box-shadow: 0 0 0 0 rgba(74, 222, 128, 0); }
}

/* headline */
.stage-head { max-width: 18ch; }
.kicker {
    font-family: "IBM Plex Mono", monospace;
    font-size: 0.74rem; letter-spacing: 0.34em; text-transform: uppercase;
    color: var(--signal); margin: 0 0 1.4rem;
    display: inline-flex; align-items: center; gap: 0.7rem;
}
.kicker::before {
    content: ""; width: 26px; height: 1px; background: var(--signal);
    display: inline-block;
}
.headline {
    font-family: "Instrument Serif", Georgia, serif;
    font-weight: 400;
    font-size: clamp(3.2rem, 7vw, 6.4rem);
    line-height: 0.92; letter-spacing: -0.01em;
    margin: 0; color: var(--text);
}
.headline em {
    font-style: italic; color: var(--signal);
    position: relative;
}
.headline .amp {
    font-style: italic; color: var(--signal-2);
    font-size: 1.05em; padding: 0 0.04em;
}
.subhead {
    margin: 1.8rem 0 0; max-width: 34ch;
    color: var(--muted); font-size: 1.02rem; line-height: 1.6;
}

/* bottom metadata rail */
.stage-foot {
    font-family: "IBM Plex Mono", monospace;
    font-size: 0.68rem; letter-spacing: 0.14em; text-transform: uppercase;
    color: var(--faint);
    display: flex; flex-wrap: wrap; gap: 0.4rem 1.4rem; align-items: center;
}
.stage-foot .sep { color: var(--line-2); }
.cursor {
    display: inline-block; width: 8px; height: 1.05em; transform: translateY(2px);
    background: var(--signal); margin-left: 2px;
    animation: blink 1.1s steps(1) infinite;
}
@keyframes blink { 50% { opacity: 0; } }

/* corner registration crosshairs */
.crosshair {
    position: absolute; width: 16px; height: 16px; z-index: 3;
    color: var(--line-2);
}
.crosshair::before, .crosshair::after {
    content: ""; position: absolute; background: currentColor;
}
.crosshair::before { left: 50%; top: 0; width: 1px; height: 100%; transform: translateX(-50%); }
.crosshair::after  { top: 50%; left: 0; height: 1px; width: 100%; transform: translateY(-50%); }
.crosshair.tl { top: 18px; left: 18px; }
.crosshair.br { bottom: 18px; right: 18px; }

/* =======================  RIGHT — THE FORM  ============================= */
.panel {
    position: relative;
    display: flex; flex-direction: column; justify-content: center;
    padding: clamp(2rem, 4vw, 4rem);
    background: var(--ink);
}
.panel-inner { width: 100%; max-width: 380px; margin: 0 auto; }

/* inline flash banner (renders without JS; auto-dismiss is progressive) */
.auth-flash {
    position: relative; overflow: hidden;
    display: flex; align-items: flex-start; gap: 0.6rem;
    padding: 0.8rem 2.1rem 0.85rem 0.9rem; margin-bottom: 1.5rem;
    border: 1px solid var(--line-2); border-left-width: 3px; border-radius: 10px;
    font-size: 0.9rem; line-height: 1.45;
    background: var(--ink-3);
}
.auth-flash-icon { flex-shrink: 0; margin-top: 1px; }
.auth-flash-msg { flex: 1; }
.auth-flash.is-success { border-left-color: var(--ok);     color: #bdf0cf; background: #11241a; }
.auth-flash.is-error   { border-left-color: #ff6b6b;       color: #ffc4c4; background: #251416; }
.auth-flash.is-info    { border-left-color: var(--signal); color: var(--signal-2); background: #241c0c; }
/* welcome — a greeting, not an alert: the same signal gold as .is-info, but a
   soft wash rather than a filled panel, so arriving signed-out never reads as
   something having gone wrong. */
.auth-flash.is-welcome {
    border-color: rgba(255, 176, 0, 0.22);
    border-left-color: var(--signal);
    color: var(--signal-2);
    background: linear-gradient(90deg, var(--signal-soft), rgba(255, 176, 0, 0.03) 70%, transparent);
}

/* dismiss (×) — inherits the banner's text colour, quiet until hovered */
.auth-flash-close {
    position: absolute; top: 0.5rem; right: 0.45rem;
    width: 22px; height: 22px; padding: 0;
    display: inline-grid; place-items: center;
    border: 0; border-radius: 6px; cursor: pointer;
    color: inherit; background: transparent; opacity: 0.5;
    transition: opacity var(--motion-duration), background var(--motion-duration);
}
.auth-flash-close:hover { opacity: 1; background: rgba(255, 255, 255, 0.08); }
.auth-flash-close:focus-visible { outline: 2px solid currentColor; outline-offset: 1px; opacity: 1; }

/* Countdown bar. Driven by a CSS animation (not JS) so it starts when the
   banner paints — the lifetime is anchored to what the user actually sees, not
   to when a render-blocking font stylesheet lets the inline script run. Its
   animationend is what triggers removal; --flash-life is set per banner. */
.auth-flash-bar {
    position: absolute; left: 0; bottom: 0; height: 2px; width: 100%;
    background: currentColor; opacity: 0.4;
    transform-origin: left center;
    animation: flash-countdown var(--flash-life, 4500ms) linear forwards;
}
@keyframes flash-countdown { from { transform: scaleX(1); } to { transform: scaleX(0); } }
/* hovering holds the message — pure CSS, no timer bookkeeping */
.auth-flash:hover .auth-flash-bar,
.auth-flash:focus-within .auth-flash-bar { animation-play-state: paused; }

/* exit transition (collapses so siblings reflow smoothly) */
.auth-flash.dismissing {
    opacity: 0;
    transform: translateY(-6px);
    max-height: 0 !important;
    margin-bottom: 0;
    padding-top: 0; padding-bottom: 0;
    border-width: 0;
    transition: opacity 320ms ease, transform 320ms ease,
                max-height 380ms ease, margin 380ms ease,
                padding 380ms ease, border-width 380ms ease;
}
.auth-flash:not(.dismissing) { max-height: 200px; }

.form-index {
    font-family: "IBM Plex Mono", monospace;
    font-size: 0.7rem; letter-spacing: 0.3em; text-transform: uppercase;
    color: var(--muted); margin-bottom: 0.9rem;
    display: flex; align-items: center; gap: 0.6rem;
}
.form-index b { color: var(--signal); font-weight: 600; }
.form-title {
    font-family: "Instrument Serif", Georgia, serif; font-weight: 400;
    font-size: clamp(2.2rem, 4vw, 2.9rem); line-height: 1.02;
    margin: 0 0 0.5rem; letter-spacing: -0.01em;
}
.form-sub { color: var(--muted); font-size: 0.94rem; margin: 0 0 2rem; line-height: 1.55; }

.field { margin-bottom: 1.15rem; }
.field > label {
    display: block;
    font-family: "IBM Plex Mono", monospace;
    font-size: 0.66rem; letter-spacing: 0.18em; text-transform: uppercase;
    color: var(--muted); margin-bottom: 0.5rem;
}
.field .req { color: var(--signal); }
.control {
    position: relative;
    display: flex; align-items: center;
    border: 1px solid var(--line-2);
    border-radius: 10px;
    background: var(--ink-3);
    transition: border-color var(--motion-duration), box-shadow var(--motion-duration), background var(--motion-duration);
}
.control:focus-within {
    border-color: var(--signal);
    background: #171b22;
    box-shadow: 0 0 0 4px var(--signal-soft);
}
.control input,
.control textarea,
.control select {
    flex: 1; width: 100%;
    border: 0; outline: 0; background: transparent;
    color: var(--text); font: inherit; font-size: 0.95rem;
    padding: 0.78rem 0.9rem;
}
.control textarea { resize: vertical; min-height: 4.5rem; line-height: 1.5; }
.control input::placeholder { color: var(--faint); }

/* Selects (Company, Department / Function on Request access). Without the
   rule above they kept the browser's own font, padding and background and sat
   inside the styled .control looking like a different form. appearance:none
   removes the native chrome so only the shared frame shows; the chevron is
   drawn here instead, and follows .control:focus-within like .tick does.

   color-scheme is set on the element rather than on .auth so it changes only
   the dropdown popup — the OS draws that list, and against this dark palette
   the default light popup was the other half of the mismatch. */
.control select {
    appearance: none; -webkit-appearance: none;
    color-scheme: dark;
    cursor: pointer;
    padding-right: 2.2rem;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 12 8'%3E%3Cpath d='M1 1.5 6 6.5 11 1.5' fill='none' stroke='%23828c9b' stroke-width='1.6' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 0.9rem center;
    background-size: 12px 8px;
    transition: background-image var(--motion-duration);
}
.control:focus-within select {
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 12 8'%3E%3Cpath d='M1 1.5 6 6.5 11 1.5' fill='none' stroke='%23ffb000' stroke-width='1.6' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E");
}
/* Belt and braces for the popup: color-scheme covers Chromium/Edge, these
   cover the rest. */
.control select option { background: var(--ink-3); color: var(--text); }
/* Nothing chosen yet reads as a placeholder, matching ::placeholder above.
   Progressive: ignored where :has() is unsupported, and the field still works. */
.control select:has(option[value=""]:checked) { color: var(--faint); }
.control .tick {
    padding-right: 0.8rem; color: var(--faint);
    transition: color var(--motion-duration);
    display: inline-flex;
}
.control:focus-within .tick { color: var(--signal); }
.control input:not(:placeholder-shown) + .tick { color: var(--ok); }

.field-hint {
    font-family: "IBM Plex Mono", monospace;
    font-size: 0.62rem; letter-spacing: 0.06em; color: var(--faint);
    margin-top: 0.45rem;
}

/* "Not you?" — quiet by default; this is an escape hatch, not a call to action */
.field-switch {
    display: inline-block; margin-top: 0.5rem;
    font-size: 0.76rem; color: var(--faint); text-decoration: none;
    transition: color var(--motion-duration);
}
.field-switch:hover { color: var(--signal); text-decoration: underline; text-underline-offset: 3px; }

/* options row */
.options {
    display: flex; align-items: center; justify-content: space-between;
    margin: 0.4rem 0 1.6rem; gap: 1rem;
}
.check {
    display: inline-flex; align-items: center; gap: 0.55rem;
    font-size: 0.85rem; color: var(--muted); cursor: pointer; user-select: none;
}
.check input { position: absolute; opacity: 0; width: 0; height: 0; }
.check .box {
    width: 17px; height: 17px; border: 1px solid var(--line-2); border-radius: 5px;
    display: inline-grid; place-items: center; background: var(--ink-3);
    transition: all var(--motion-duration);
}
.check .box svg { width: 11px; height: 11px; stroke: #1a1300; opacity: 0; transform: scale(0.6); transition: all var(--motion-duration); }
.check input:checked + .box { background: var(--signal); border-color: var(--signal); }
.check input:checked + .box svg { opacity: 1; transform: scale(1); }
.check input:focus-visible + .box { box-shadow: 0 0 0 4px var(--signal-soft); }

.linklike { color: var(--signal); text-decoration: none; font-size: 0.85rem; transition: color var(--motion-duration); }
.linklike:hover { color: var(--signal-2); text-decoration: underline; text-underline-offset: 3px; }

/* submit */
.btn-signal {
    position: relative; overflow: hidden;
    width: 100%; border: 0; cursor: pointer;
    font-family: "IBM Plex Mono", monospace;
    font-size: 0.8rem; font-weight: 600; letter-spacing: 0.16em; text-transform: uppercase;
    color: #1a1300; background: var(--signal);
    padding: 0.95rem 1.1rem; border-radius: 10px;
    display: inline-flex; align-items: center; justify-content: center; gap: 0.6rem;
    transition: transform 120ms ease, box-shadow var(--motion-duration);
    box-shadow: 0 8px 24px -10px rgba(255, 176, 0, 0.6);
}
.btn-signal:hover { box-shadow: 0 12px 30px -8px rgba(255, 176, 0, 0.7); }
.btn-signal:active { transform: translateY(1px); }
.btn-signal .arrow { transition: transform var(--motion-duration); }
.btn-signal:hover .arrow { transform: translateX(4px); }
.btn-signal::before {
    content: ""; position: absolute; inset: 0; transform: translateX(-101%);
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.45), transparent);
    transition: transform 600ms ease;
}
.btn-signal:hover::before { transform: translateX(101%); }
/* busy state while the form posts */
.btn-signal.is-busy { pointer-events: none; opacity: 0.9; }
.btn-signal.is-busy .arrow { animation: signal-arrow 0.9s ease-in-out infinite; }
@keyframes signal-arrow { 0%,100% { transform: translateX(0); } 50% { transform: translateX(5px); } }

/* =======================  LOADING OVERLAY  ============================== */
.auth-loading {
    position: absolute; inset: 0; z-index: 20;
    display: flex; align-items: center; justify-content: center;
    background: rgba(8, 11, 16, 0.72);
    -webkit-backdrop-filter: blur(6px); backdrop-filter: blur(6px);
    opacity: 0; visibility: hidden;
    transition: opacity 260ms ease, visibility 0s linear 260ms;
}
.auth-loading.is-active { opacity: 1; visibility: visible; transition: opacity 260ms ease; }
.auth-loading-inner {
    position: relative;
    display: flex; flex-direction: column; align-items: flex-start;
    gap: 1.15rem; width: min(300px, 78%);
    transform: translateY(8px); transition: transform 320ms cubic-bezier(0.22, 1, 0.36, 1);
}
.auth-loading.is-active .auth-loading-inner { transform: none; }

.auth-loading-kicker {
    display: inline-flex; align-items: center; gap: 0.65rem;
    font-family: "IBM Plex Mono", monospace;
    font-size: 0.7rem; letter-spacing: 0.3em; text-transform: uppercase;
    color: var(--signal);
}
.auth-loading-kicker::before {
    content: ""; width: 22px; height: 1px; background: var(--signal);
}

/* transmission rail — one travelling pulse, echoing the stage's node-link glyph */
.auth-rail {
    width: 100%; height: 2px; position: relative; overflow: hidden;
    background: var(--line); border-radius: 2px;
}
.auth-rail i {
    position: absolute; inset-block: 0; left: 0; width: 42%;
    background: linear-gradient(90deg, transparent, var(--signal), transparent);
    animation: rail 1.45s cubic-bezier(0.6, 0, 0.35, 1) infinite;
}
@keyframes rail { from { transform: translateX(-105%); } to { transform: translateX(340%); } }

/* the sequence reads as a log: left-aligned, monospace, one line per state */
.auth-seq { list-style: none; margin: 0; padding: 0; width: 100%; display: flex; flex-direction: column; gap: 0.62rem; }
.auth-seq-step {
    display: flex; align-items: center; gap: 0.7rem;
    font-family: "IBM Plex Mono", monospace;
    font-size: 0.73rem; letter-spacing: 0.04em;
    color: var(--faint);
    opacity: 0.45;
    transition: opacity 320ms ease, color 320ms ease;
}
.auth-seq-step.is-active { opacity: 1; color: var(--text); }
.auth-seq-step.is-done   { opacity: 1; color: var(--muted); }

/* marker: hollow when pending, pulsing amber while active, ticked once done */
.auth-seq-mark {
    position: relative; flex: none;
    width: 13px; height: 13px; border-radius: 50%;
    border: 1px solid var(--line-2);
    transition: border-color 320ms ease, background 320ms ease;
}
.auth-seq-step.is-active .auth-seq-mark {
    border-color: var(--signal);
    box-shadow: 0 0 0 0 rgba(255, 176, 0, 0.55);
    animation: mark-pulse 1.5s ease-out infinite;
}
.auth-seq-step.is-active .auth-seq-mark::after {
    content: ""; position: absolute; inset: 3px;
    border-radius: 50%; background: var(--signal);
}
.auth-seq-step.is-done .auth-seq-mark { border-color: var(--ok); background: transparent; animation: none; box-shadow: none; }
.auth-seq-step.is-done .auth-seq-mark::after {
    content: ""; position: absolute; left: 3.5px; top: 1px;
    width: 4px; height: 7px;
    border: solid var(--ok); border-width: 0 1.5px 1.5px 0;
    transform: rotate(42deg);
}
@keyframes mark-pulse {
    0%   { box-shadow: 0 0 0 0 rgba(255, 176, 0, 0.5); }
    70%  { box-shadow: 0 0 0 6px rgba(255, 176, 0, 0); }
    100% { box-shadow: 0 0 0 0 rgba(255, 176, 0, 0); }
}

.auth-loading-foot {
    font-family: "IBM Plex Mono", monospace;
    font-size: 0.6rem; letter-spacing: 0.22em; text-transform: uppercase;
    color: var(--faint);
}

/* footer line */
.panel-foot {
    margin-top: 1.8rem; padding-top: 1.4rem; border-top: 1px solid var(--line);
    font-size: 0.9rem; color: var(--muted); text-align: center;
}
.panel-foot a { color: var(--signal); text-decoration: none; font-weight: 600; }
.panel-foot a:hover { text-decoration: underline; text-underline-offset: 3px; }

/* Confidential reporting portal entry point (MD-007 §4.1).
   Visually quieter than "Request access" — it should be findable by someone
   looking for it, without turning the sign-in page into an advertisement. */
.panel-report {
    margin-top: 0.9rem; padding-top: 0.9rem; border-top: 1px solid var(--line);
    text-align: center; display: flex; flex-direction: column; gap: 0.25rem;
}
.panel-report a {
    color: var(--muted); text-decoration: none; font-weight: 600; font-size: 0.85rem;
    transition: color var(--motion-duration);
}
.panel-report a:hover { color: var(--signal); text-decoration: underline; text-underline-offset: 3px; }
.panel-report span { color: var(--muted); font-size: 0.72rem; opacity: 0.75; }
.back-link {
    display: inline-flex; align-items: center; gap: 0.45rem;
    font-family: "IBM Plex Mono", monospace; font-size: 0.7rem; letter-spacing: 0.14em;
    text-transform: uppercase; color: var(--muted); text-decoration: none; margin-bottom: 1.6rem;
    transition: color var(--motion-duration);
}
.back-link:hover { color: var(--signal); }

/* grid for the request form */
.grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 1.15rem; }
.grid-2 .col-span { grid-column: 1 / -1; }

/* --- entrance choreography ----------------------------------------------- */
.reveal { opacity: 0; transform: translateY(14px); animation: rise 0.7s cubic-bezier(0.22, 1, 0.36, 1) forwards; }
@keyframes rise { to { opacity: 1; transform: none; } }
.d1 { animation-delay: 0.05s; } .d2 { animation-delay: 0.14s; }
.d3 { animation-delay: 0.23s; } .d4 { animation-delay: 0.32s; }
.d5 { animation-delay: 0.41s; } .d6 { animation-delay: 0.50s; }
.d7 { animation-delay: 0.59s; } .d8 { animation-delay: 0.68s; }

/* --- responsive ----------------------------------------------------------- */
@media (max-width: 900px) {
    .auth-wrap { grid-template-columns: 1fr; }
    .stage { min-height: 42vh; border-right: 0; border-bottom: 1px solid var(--line); }
    .edge-label { display: none; }
    .panel { padding: 2.2rem 1.5rem 3rem; }
}
@media (max-width: 520px) {
    .grid-2 { grid-template-columns: 1fr; }
    .stage { padding: 1.6rem; }
}

/* --- reduced motion ------------------------------------------------------- */
@media (prefers-reduced-motion: reduce) {
    .auth *, .auth *::before, .auth *::after { animation: none !important; transition: none !important; }
    .reveal { opacity: 1; transform: none; }
}