/* Shared auth styles — Sign In + Sign Up. Same tokens as the rest of the
   site; declared inline here so each auth page is self-sufficient. */

:root {
  --bg:           oklch(0.155 0.008 60);
  --bg-1:         oklch(0.185 0.009 60);
  --bg-2:         oklch(0.225 0.010 60);
  --hairline:     oklch(0.32 0.010 60 / 0.55);
  --hairline-2:   oklch(0.40 0.012 60 / 0.35);
  --fg:           oklch(0.97 0.005 80);
  --fg-dim:       oklch(0.78 0.006 80);
  --fg-mute:      oklch(0.58 0.006 80);
  --fg-faint:     oklch(0.42 0.006 80);

  --accent:       oklch(0.74 0.175 35);
  --accent-soft:  oklch(0.74 0.175 35 / 0.18);
  --accent-glow:  oklch(0.74 0.175 35 / 0.35);
  --accent-fg:    #1a0f0a;

  --ok:           oklch(0.78 0.16 155);

  --font-sans: "Geist", ui-sans-serif, system-ui, -apple-system, sans-serif;
  --font-mono: "Geist Mono", ui-monospace, "SF Mono", Menlo, monospace;
}

* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; min-height: 100%; }
body {
  background: var(--bg);
  color: var(--fg);
  font-family: var(--font-sans);
  line-height: 1.45;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
}

/* Ambient grid */
body::before {
  content: "";
  position: fixed; inset: 0;
  background-image:
    linear-gradient(to right, oklch(0.30 0.01 60 / 0.10) 1px, transparent 1px),
    linear-gradient(to bottom, oklch(0.30 0.01 60 / 0.10) 1px, transparent 1px);
  background-size: 56px 56px;
  mask-image: radial-gradient(ellipse 70% 70% at 50% 40%, #000 30%, transparent 80%);
  -webkit-mask-image: radial-gradient(ellipse 70% 70% at 50% 40%, #000 30%, transparent 80%);
  pointer-events: none;
  z-index: 0;
}

/* Film grain */
body::after {
  content: "";
  position: fixed; inset: 0;
  pointer-events: none;
  z-index: 1;
  opacity: 0.035;
  mix-blend-mode: overlay;
  background-image: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='160' height='160'><filter id='n'><feTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='2' stitchTiles='stitch'/></filter><rect width='100%25' height='100%25' filter='url(%23n)' opacity='0.85'/></svg>");
}

a { color: inherit; text-decoration: none; }
button { font: inherit; color: inherit; background: none; border: 0; padding: 0; cursor: pointer; }
h1, h2, h3 { margin: 0; font-weight: 500; letter-spacing: -0.02em; line-height: 1.05; }
p { margin: 0; }
::selection { background: var(--accent); color: var(--accent-fg); }

/* Layout */
.page {
  position: relative;
  z-index: 2;
  min-height: 100dvh;
  display: flex; flex-direction: column;
}

.topbar {
  position: relative; z-index: 5;
  padding: 22px clamp(20px, 4vw, 48px);
  display: flex; align-items: center; justify-content: space-between;
}
.topbar a:hover { color: var(--fg); }
.topbar-back {
  color: var(--fg-mute);
  font-size: 14px;
  display: inline-flex; align-items: center; gap: 6px;
}

.logo {
  display: inline-flex; align-items: center; gap: 9px;
  font-weight: 600; font-size: 17px; letter-spacing: -0.02em;
  color: var(--fg);
}
.logo-mark {
  width: 26px; height: 26px; border-radius: 50%;
  background: linear-gradient(135deg, var(--accent) 0%, oklch(0.65 0.20 18) 100%);
  box-shadow: 0 0 22px var(--accent-glow), inset 0 1px 0 oklch(1 0 0 / 0.25);
  display: grid; place-items: center;
  color: var(--accent-fg);
  flex-shrink: 0;
}
.logo-mark svg { display: block; }
.logo-caret { animation: caret-blink 1.4s steps(2) infinite; }
@keyframes caret-blink { 50% { opacity: 0.25; } }

/* Main */
.auth-main {
  flex: 1;
  display: grid; place-items: center;
  padding: clamp(20px, 4vw, 40px);
  position: relative;
}

/* Ambient glows */
.auth-glow {
  position: absolute;
  pointer-events: none;
  filter: blur(20px);
  z-index: 0;
}

/* Card */
.auth-card {
  position: relative;
  z-index: 2;
  width: 100%; max-width: 440px;
  padding: 36px clamp(24px, 4vw, 40px) 32px;
  background: linear-gradient(180deg, oklch(0.20 0.009 60 / 0.85), oklch(0.17 0.008 60 / 0.85));
  border: 1px solid var(--hairline);
  border-radius: 22px;
  backdrop-filter: blur(20px);
  box-shadow:
    0 30px 80px -20px oklch(0 0 0 / 0.7),
    0 0 80px -30px var(--accent-glow);
}
.auth-card::before {
  content: "";
  position: absolute; left: 0; right: 0; top: 0; height: 1px;
  background: linear-gradient(90deg, transparent, var(--accent), transparent);
  opacity: .6;
}

/* Header */
.auth-eye {
  display: inline-flex; align-items: center; gap: 8px;
  font-family: var(--font-mono);
  font-size: 11px; letter-spacing: 0.14em; text-transform: uppercase;
  color: var(--fg-mute);
}
.auth-eye::before {
  content: ""; width: 5px; height: 5px; border-radius: 50%;
  background: var(--accent); box-shadow: 0 0 12px var(--accent-glow);
}
.auth-title {
  margin-top: 14px;
  font-size: clamp(26px, 3.4vw, 34px);
  font-weight: 500;
  letter-spacing: -0.022em;
  line-height: 1.1;
  text-wrap: balance;
}
.auth-title em {
  font-style: normal;
  color: var(--accent);
  text-shadow: 0 0 30px var(--accent-glow);
}
.auth-sub {
  margin-top: 10px;
  color: var(--fg-mute);
  font-size: 14.5px;
  line-height: 1.5;
  text-wrap: balance;
}

/* Form */
.auth-form {
  margin-top: 24px;
  display: flex; flex-direction: column;
  gap: 12px;
}

.auth-field {
  display: flex; flex-direction: column;
  gap: 6px;
}
.auth-label {
  font-family: var(--font-mono);
  font-size: 10.5px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--fg-mute);
  padding-left: 4px;
}

.auth-input {
  width: 100%;
  padding: 13px 16px;
  background: oklch(0.16 0.008 60 / 0.8);
  border: 1px solid var(--hairline);
  border-radius: 12px;
  color: var(--fg);
  font: 15px/1.5 var(--font-sans);
  outline: none;
  transition: border-color .15s, background .15s, box-shadow .15s;
}
.auth-input::placeholder { color: var(--fg-faint); }
.auth-input:focus {
  border-color: oklch(0.74 0.175 35 / 0.65);
  background: oklch(0.18 0.009 60 / 0.95);
  box-shadow: 0 0 0 3px oklch(0.74 0.175 35 / 0.12), 0 0 30px -10px var(--accent-glow);
}
.auth-input.mono { font-family: var(--font-mono); letter-spacing: 0.08em; text-transform: uppercase; }
.auth-input.mono::placeholder { letter-spacing: 0.08em; }

/* Buttons */
.auth-btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 10px;
  height: 50px; padding: 0 22px;
  border-radius: 999px;
  font-weight: 500;
  font-size: 15px;
  transition: transform .12s, box-shadow .2s, background .2s;
  white-space: nowrap;
  width: 100%;
}
.auth-btn-primary {
  background: var(--accent);
  color: var(--accent-fg);
  box-shadow:
    0 0 0 1px oklch(0.84 0.16 35 / 0.5) inset,
    0 10px 40px -10px var(--accent-glow),
    0 0 40px -8px var(--accent-glow);
}
.auth-btn-primary:hover { transform: translateY(-1px); }
.auth-btn-primary[disabled] { opacity: .55; cursor: not-allowed; transform: none; }
.auth-btn-ghost {
  background: oklch(0.20 0.009 60 / 0.6);
  border: 1px solid var(--hairline);
  color: var(--fg-dim);
}
.auth-btn-ghost:hover { color: var(--fg); border-color: var(--hairline-2); background: oklch(0.22 0.010 60 / 0.8); }
.auth-btn-ghost img, .auth-btn-ghost svg { flex-shrink: 0; }

/* Divider */
.auth-divider {
  display: flex; align-items: center; gap: 14px;
  margin: 6px 0 2px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--fg-faint);
}
.auth-divider::before, .auth-divider::after {
  content: ""; flex: 1; height: 1px; background: var(--hairline);
}

/* OAuth row */
.auth-oauth {
  display: flex; flex-direction: column; gap: 10px;
}

/* Footer */
.auth-foot {
  margin-top: 26px;
  padding-top: 22px;
  border-top: 1px solid var(--hairline);
  text-align: center;
  font-size: 14px;
  color: var(--fg-mute);
}
.auth-foot a {
  color: var(--accent);
  font-weight: 500;
}
.auth-foot a:hover { text-decoration: underline; text-underline-offset: 3px; }

.auth-fine {
  margin-top: 18px;
  text-align: center;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.04em;
  color: var(--fg-faint);
}
.auth-fine a { color: var(--fg-mute); text-decoration: underline; text-underline-offset: 3px; }

/* Spinner */
.auth-spinner {
  width: 16px; height: 16px; border-radius: 50%;
  border: 2px solid oklch(0 0 0 / 0.2);
  border-top-color: var(--accent-fg);
  animation: spin .9s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }

/* Confirmed state */
.auth-success {
  text-align: center;
}
.auth-success-badge {
  display: inline-grid; place-items: center;
  width: 56px; height: 56px;
  border-radius: 50%;
  margin-bottom: 16px;
  color: var(--accent);
  background: oklch(0.74 0.175 35 / 0.12);
  border: 1px solid oklch(0.74 0.175 35 / 0.4);
  box-shadow: 0 0 40px var(--accent-glow);
}
.auth-success .email-chip {
  display: inline-block;
  margin: 0 4px;
  padding: 2px 9px;
  border-radius: 6px;
  background: oklch(0.74 0.175 35 / 0.12);
  border: 1px solid oklch(0.74 0.175 35 / 0.3);
  color: var(--accent);
  font-family: var(--font-mono);
  font-size: 13.5px;
  font-weight: 500;
  letter-spacing: 0;
  text-transform: none;
  white-space: nowrap;
}

.auth-tip {
  margin-top: 22px;
  padding: 14px 16px;
  border-radius: 10px;
  background: oklch(0.16 0.008 60 / 0.6);
  border: 1px solid var(--hairline);
  display: flex; gap: 12px;
  text-align: left;
  font-size: 13px; line-height: 1.5;
  color: var(--fg-dim);
}
.auth-tip-icon {
  flex-shrink: 0;
  width: 22px; height: 22px; border-radius: 6px;
  background: oklch(0.22 0.011 60);
  color: var(--fg-mute);
  display: grid; place-items: center;
}
.auth-tip a { color: var(--accent); }
.auth-tip a:hover { text-decoration: underline; text-underline-offset: 3px; }

/* Resend */
.auth-resend {
  display: inline-flex; align-items: center; gap: 8px;
  margin-top: 20px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.03em;
  color: var(--fg-mute);
}
.auth-resend button {
  color: var(--accent);
  text-decoration: underline;
  text-underline-offset: 3px;
}
.auth-resend button:hover { color: oklch(0.78 0.16 35); }
.auth-resend button[disabled] {
  color: var(--fg-faint);
  text-decoration: none;
  cursor: not-allowed;
}

/* Trust strip in footer area */
.auth-trust {
  margin-top: 32px;
  display: flex; gap: 14px; justify-content: center; align-items: center;
  flex-wrap: wrap;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.03em;
  color: var(--fg-faint);
}
.auth-trust .sep { color: var(--fg-faint); opacity: 0.5; }
