/* ════════════════════════════════════════════════════════════
   AUTH.CSS — shared design system for Login & Signup
   Extends the Attendance page's token language (Barlow family,
   dark/orange palette) with a premium glass + glow treatment.
   ════════════════════════════════════════════════════════════ */

:root {
  /* ── Core surface tokens (Attendance lineage) ── */
  --bg:            #080808;
  --bg-elevated:   #0c0c0c;
  --surface:       #111111;
  --surface-2:     #181818;
  --border:        rgba(255,255,255,.07);
  --border-2:      rgba(255,255,255,.13);

  /* ── Orange identity (brief-specified glow tone) ── */
  --orange:        #ff7a00;
  --orange-soft:   #ff9a40;
  --orange-dim:    rgba(255,122,0,.12);
  --orange-bdr:    rgba(255,122,0,.32);
  --orange-glow:   rgba(255,122,0,.38);

  /* ── Status ── */
  --green:         #5de87c;
  --red:           #ff6b6b;
  --red-dim:       rgba(255,107,107,.12);
  --red-bdr:       rgba(255,107,107,.3);

  /* ── Text ── */
  --text-hi:       #f7f7f7;
  --text-mid:      #9a9a9a;
  --text-lo:       #555;

  /* ── Glass ── */
  --glass-bg:      rgba(18,16,14,.58);
  --glass-bdr:     rgba(255,255,255,.09);
  --glass-blur:    20px;

  /* ── Type ── */
  --font-d: "Barlow Condensed", sans-serif;
  --font-b: "Barlow", sans-serif;

  /* ── Motion ── */
  --ease:   cubic-bezier(.4,0,.2,1);
  --ease-spring: cubic-bezier(.34,1.4,.64,1);
  --t:      .22s;

  /* ── Radii ── */
  --radius-lg:   24px;
  --radius-md:   14px;
  --radius-sm:   10px;
  --radius-pill: 999px;
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: .001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: .001ms !important;
    scroll-behavior: auto !important;
  }
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  min-height: 100vh;
  background: var(--bg);
  color: var(--text-hi);
  font-family: var(--font-b);
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

/* ════════════════════════════════════════════════════════════
   PAGE SHELL — split screen
   ════════════════════════════════════════════════════════════ */

.auth-shell {
  min-height: 100vh;
  display: grid;
  grid-template-columns: minmax(0, 1.1fr) minmax(0, 1fr);
}

@media (max-width: 880px) {
  .auth-shell {
    grid-template-columns: 1fr;
  }
}

/* ── LEFT: hero visual panel ── */
.auth-visual {
  position: relative;
  min-height: 100vh;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  padding: clamp(24px, 4vw, 48px);
}

@media (max-width: 880px) {
  .auth-visual {
    min-height: 320px;
    padding: 20px clamp(20px, 5vw, 40px) 32px;
  }
}
@media (max-width: 480px) {
  .auth-visual { min-height: 240px; }
}

.auth-visual-bg {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  z-index: 0;
}

.auth-visual-overlay {
  position: absolute;
  inset: 0;
  z-index: 1;
  background:
    linear-gradient(180deg, rgba(8,8,8,.55) 0%, rgba(8,8,8,.35) 35%, rgba(8,8,8,.88) 100%),
    linear-gradient(115deg, rgba(8,8,8,.5) 0%, transparent 55%);
}

.auth-visual-content {
  position: relative;
  z-index: 2;
}

/* Brand row, top-left */
.auth-brand {
  display: flex;
  align-items: center;
  gap: 12px;
}
.auth-brand img,
.auth-brand .brand-mark {
  height: 38px;
  width: 38px;
  object-fit: contain;
  border-radius: 10px;
  filter: drop-shadow(0 0 10px var(--orange-glow));
}
.auth-brand-name {
  font-family: var(--font-d);
  font-weight: 900;
  font-size: clamp(1.1rem, 2vw, 1.35rem);
  text-transform: uppercase;
  letter-spacing: -.01em;
  color:#ff7a00;
}

/* Bottom hero copy */
.auth-hero-copy {
  position: relative;
  z-index: 2;
  max-width: 460px;
}
.auth-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-d);
  font-size: .76rem;
  font-weight: 700;
  letter-spacing: .2em;
  text-transform: uppercase;
  color: var(--orange-soft);
  margin-bottom: 14px;
  padding: 6px 14px;
  border: 1px solid var(--orange-bdr);
  border-radius: var(--radius-pill);
  background: rgba(255,122,0,.08);
  backdrop-filter: blur(8px);
}
.auth-hero-copy h1 {
  font-family: var(--font-d);
  font-weight: 900;
  font-size: clamp(2rem, 4.4vw, 3.1rem);
  line-height: .98;
  letter-spacing: -.01em;
  text-transform: uppercase;
  margin: 0 0 14px;
  color: var(--text-hi);
}
.auth-hero-copy h1 .accent { color: var(--orange); }
.auth-hero-copy p {
  font-size: clamp(.92rem, 1.4vw, 1.02rem);
  color: rgba(245,245,245,.78);
  line-height: 1.6;
  margin: 0;
}

@media (max-width: 880px) {
  .auth-hero-copy h1 { font-size: clamp(1.6rem, 6vw, 2.2rem); }
  .auth-hero-copy p { display: none; }
}

/* ── RIGHT: form column ── */
.auth-form-col {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: clamp(28px, 5vw, 64px) clamp(20px, 5vw, 56px);
  background: var(--bg-elevated);
  overflow: hidden;
}

/* Ambient glow blobs — signature element, restrained to one slow drift */
.glow-blob {
  position: absolute;
  border-radius: 50%;
  filter: blur(70px);
  pointer-events: none;
  z-index: 0;
  opacity: .55;
}
.glow-blob.b1 {
  width: 420px; height: 420px;
  background: radial-gradient(circle, var(--orange-glow) 0%, transparent 70%);
  top: -120px; right: -120px;
  animation: drift1 16s ease-in-out infinite;
}
.glow-blob.b2 {
  width: 320px; height: 320px;
  background: radial-gradient(circle, rgba(255,154,64,.22) 0%, transparent 70%);
  bottom: -100px; left: -80px;
  animation: drift2 20s ease-in-out infinite;
}

@keyframes drift1 {
  0%, 100% { transform: translate(0, 0) scale(1); }
  50%      { transform: translate(-30px, 40px) scale(1.08); }
}
@keyframes drift2 {
  0%, 100% { transform: translate(0, 0) scale(1); }
  50%      { transform: translate(25px, -30px) scale(1.05); }
}

@media (prefers-reduced-motion: reduce) {
  .glow-blob { animation: none; }
}

/* ════════════════════════════════════════════════════════════
   GLASS CARD
   ════════════════════════════════════════════════════════════ */

.auth-card {
  position: relative;
  z-index: 1;
  width: 100%;
  max-width: 420px;
  background: var(--glass-bg);
  border: 1px solid var(--glass-bdr);
  border-radius: var(--radius-lg);
  backdrop-filter: blur(var(--glass-blur)) saturate(140%);
  -webkit-backdrop-filter: blur(var(--glass-blur)) saturate(140%);
  box-shadow:
    0 24px 60px rgba(0,0,0,.5),
    0 0 0 1px rgba(255,255,255,.02) inset,
    0 1px 0 rgba(255,255,255,.06) inset;
  padding: clamp(28px, 4vw, 40px) clamp(24px, 4vw, 36px);

  opacity: 0;
  transform: translateY(22px);
  animation: cardIn .6s var(--ease-spring) .12s forwards;
}

@keyframes cardIn {
  to { opacity: 1; transform: translateY(0); }
}

.auth-card-head {
  margin-bottom: clamp(20px, 3vw, 28px);
}
.auth-card-eyebrow {
  font-family: var(--font-d);
  font-size: .7rem;
  font-weight: 700;
  letter-spacing: .2em;
  text-transform: uppercase;
  color: var(--orange);
  margin-bottom: 8px;
}
.auth-card-head h2 {
  font-family: var(--font-d);
  font-weight: 900;
  font-size: clamp(1.6rem, 3vw, 2.1rem);
  letter-spacing: -.01em;
  text-transform: uppercase;
  margin: 0 0 6px;
  color: var(--text-hi);
}
.auth-card-head p {
  font-size: .88rem;
  color: var(--text-mid);
  margin: 0;
  line-height: 1.5;
}

/* mobile-only compact gym header, shown above card when visual panel copy is hidden */
.auth-mobile-brand {
  display: none;
}
@media (max-width: 480px) {
  .auth-mobile-brand {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 18px;
  }
  .auth-mobile-brand img,
  .auth-mobile-brand .brand-mark {
    height: 30px; width: 30px;
    border-radius: 8px;
    object-fit: contain;
  }
  .auth-mobile-brand span {
    font-family: var(--font-d);
    font-weight: 800;
    font-size: 1rem;
    text-transform: uppercase;
    color: var(--text-hi);
  }
}

/* ════════════════════════════════════════════════════════════
   FORM ELEMENTS
   ════════════════════════════════════════════════════════════ */

.form-group {
  margin-bottom: 18px;
  position: relative;
}

.form-group label {
  display: block;
  font-family: var(--font-d);
  font-size: .7rem;
  font-weight: 700;
  letter-spacing: .16em;
  text-transform: uppercase;
  color: var(--text-mid);
  margin-bottom: 7px;
  transition: color var(--t);
}

.input-wrap {
  position: relative;
  display: flex;
  align-items: center;
}

.form-group input.text {
  width: 100%;
  background: rgba(255,255,255,.03);
  border: 1px solid var(--border-2);
  border-radius: var(--radius-sm);
  color: var(--text-hi);
  font-family: var(--font-b);
  font-size: .96rem;
  padding: 13px 16px;
  outline: none;
  transition: border-color var(--t), box-shadow var(--t), background var(--t);
}

.form-group input.text::placeholder {
  color: rgba(255,255,255,.22);
}

.form-group input.text:hover {
  border-color: rgba(255,255,255,.22);
}

.form-group input.text:focus {
  border-color: var(--orange);
  background: rgba(255,122,0,.04);
  box-shadow: 0 0 0 3px var(--orange-dim), 0 0 22px -6px var(--orange-glow);
}

.form-group:focus-within label {
  color: var(--orange-soft);
}

/* password field gets extra right padding for the toggle button */
.form-group.has-toggle input.text {
  padding-right: 46px;
}

.pw-toggle {
  position: absolute;
  right: 6px;
  top: 50%;
  transform: translateY(-50%);
  width: 34px;
  height: 34px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: transparent;
  border: none;
  border-radius: 8px;
  color: var(--text-mid);
  cursor: pointer;
  transition: color var(--t), background var(--t);
}
.pw-toggle:hover {
  color: var(--text-hi);
  background: rgba(255,255,255,.06);
}
.pw-toggle:focus-visible {
  outline: 2px solid var(--orange);
  outline-offset: 2px;
}
.pw-toggle svg { width: 18px; height: 18px; }
.pw-toggle .icon-off { display: none; }
.pw-toggle.is-visible .icon-on  { display: none; }
.pw-toggle.is-visible .icon-off { display: block; }

small.error {
  display: block;
  margin-top: 7px;
  font-size: .78rem;
  color: var(--red);
  font-weight: 500;
}

.password-hint {
  display: block;
  margin-top: 7px;
  font-size: .76rem;
  color: var(--text-lo);
  line-height: 1.5;
}
.password-hint strong { color: var(--text-mid); font-weight: 700; }

/* ── Password strength meter ── */
.pw-strength {
  margin-top: 9px;
  display: flex;
  gap: 4px;
}
.pw-strength-bar {
  height: 4px;
  flex: 1;
  border-radius: var(--radius-pill);
  background: rgba(255,255,255,.08);
  transition: background var(--t);
}
.pw-strength[data-level="1"] .pw-strength-bar:nth-child(1) { background: var(--red); }
.pw-strength[data-level="2"] .pw-strength-bar:nth-child(-n+2) { background: var(--orange); }
.pw-strength[data-level="3"] .pw-strength-bar:nth-child(-n+3) { background: var(--green); }
.pw-strength-label {
  font-size: .72rem;
  color: var(--text-lo);
  margin-top: 6px;
  letter-spacing: .04em;
}

/* ════════════════════════════════════════════════════════════
   BUTTON
   ════════════════════════════════════════════════════════════ */

.submit-btn {
  width: 100%;
  margin-top: 6px;
  padding: 15px;
  border: none;
  border-radius: var(--radius-sm);
  background: linear-gradient(135deg, var(--orange) 0%, #ff5a00 100%);
  color: #fff;
  font-family: var(--font-d);
  font-size: .96rem;
  font-weight: 800;
  letter-spacing: .08em;
  text-transform: uppercase;
  cursor: pointer;
  position: relative;
  overflow: hidden;
  transition: transform var(--t), box-shadow var(--t), opacity var(--t);
  box-shadow: 0 10px 30px -8px var(--orange-glow);
}

.submit-btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 16px 38px -8px var(--orange-glow);
}
.submit-btn:active {
  transform: translateY(0);
}
.submit-btn:focus-visible {
  outline: 2px solid #fff;
  outline-offset: 3px;
}
.submit-btn:disabled {
  opacity: .65;
  cursor: not-allowed;
  transform: none;
}

/* shimmer sweep on hover, subtle, GPU-friendly */
.submit-btn::after {
  content: "";
  position: absolute;
  top: 0; left: -60%;
  width: 40%; height: 100%;
  background: linear-gradient(115deg, transparent, rgba(255,255,255,.25), transparent);
  transform: skewX(-18deg);
  transition: left .55s var(--ease);
  pointer-events: none;
}
.submit-btn:hover::after { left: 130%; }

@media (prefers-reduced-motion: reduce) {
  .submit-btn::after { display: none; }
}

/* ════════════════════════════════════════════════════════════
   FOOTER TEXT / LINKS
   ════════════════════════════════════════════════════════════ */

.forget-text{
  text-align: center;
  font-size: .85rem;
  color: var(--text-mid);
  margin: 16px 0 0;
  line-height: 1.6;
}

/* Top bar variant: "Already have an account?" */
.login-text {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  text-align: center;
  font-size: .82rem;
  color: var(--text-mid);
  line-height: 1.5;
  margin: 0 0 20px;
  padding: 10px 14px;
  border: 1px solid var(--border-2);
  border-radius: var(--radius-pill);
  background: rgba(255,255,255,.03);
}

.forget-text a,
.login-text a {
  color: var(--orange-soft);
  font-weight: 700;
  text-decoration: none;
  transition: color var(--t);
}
.forget-text a:hover,
.login-text a:hover {
  color: var(--orange);
  text-decoration: underline;
}
.forget-text a:focus-visible,
.login-text a:focus-visible {
  outline: 2px solid var(--orange);
  outline-offset: 2px;
  border-radius: 4px;
}

/* ════════════════════════════════════════════════════════════
   FLASH MESSAGES
   ════════════════════════════════════════════════════════════ */

#message-container {
  position: fixed;
  top: 20px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 9999;
  width: 100%;
  max-width: 420px;
  padding: 0 16px;
}
.flash-message {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 13px 20px;
  margin-bottom: 12px;
  border-radius: var(--radius-md);
  font-size: 14px;
  font-weight: 500;
  color: #fff;
  box-shadow: 0 10px 26px rgba(0,0,0,.4);
  backdrop-filter: blur(10px);
  animation: toastIn .35s var(--ease-spring) both;
}
@keyframes toastIn {
  from { opacity: 0; transform: translateY(-12px); }
  to   { opacity: 1; transform: translateY(0); }
}
.flash-message.success { background: linear-gradient(to right, #1f9d55, #166534); border: 1px solid rgba(93,232,124,.3); }
.flash-message.error   { background: linear-gradient(to right, #c0392b, #7f1d1d); border: 1px solid var(--red-bdr); }
.flash-message.default { background: #1f2937; border: 1px solid rgba(255,255,255,.1); }
.close-btn {
  margin-left: 10px;
  font-size: 18px;
  font-weight: bold;
  border: none;
  background: none;
  color: white;
  cursor: pointer;
  transition: transform .2s ease;
}
.close-btn:hover { transform: scale(1.1); }

/* ════════════════════════════════════════════════════════════
   ENTRANCE ANIMATIONS (page-level)
   ════════════════════════════════════════════════════════════ */

.auth-visual-content,
.auth-hero-copy {
  opacity: 0;
  animation: fadeUp .7s var(--ease) forwards;
}
.auth-visual-content { animation-delay: .05s; }
.auth-hero-copy       { animation-delay: .2s; }

@keyframes fadeUp {
  from { opacity: 0; transform: translateY(16px); }
  to   { opacity: 1; transform: translateY(0); }
}

.auth-visual-bg {
  animation: imgReveal 1.1s var(--ease) both;
}
@keyframes imgReveal {
  from { opacity: 0; transform: scale(1.06); filter: saturate(.7); }
  to   { opacity: 1; transform: scale(1); filter: saturate(1); }
}

@media (prefers-reduced-motion: reduce) {
  .auth-visual-content, .auth-hero-copy, .auth-visual-bg, .auth-card {
    animation: none !important;
    opacity: 1 !important;
    transform: none !important;
  }
}

/* ════════════════════════════════════════════════════════════
   RESPONSIVE FINE-TUNING
   ════════════════════════════════════════════════════════════ */

@media (max-width: 880px) {
  .auth-form-col { min-height: calc(100vh - 320px); }
}
@media (max-width: 480px) {
  .auth-form-col { min-height: calc(100vh - 240px); padding: 28px 18px 40px; }
  .auth-card { padding: 26px 20px; border-radius: var(--radius-md); }
}

@supports (padding: env(safe-area-inset-bottom)) {
  .auth-form-col { padding-bottom: max(28px, env(safe-area-inset-bottom)); }
}

/* Keyboard focus visibility (general fallback) */
a:focus-visible, button:focus-visible, input:focus-visible {
  outline: 2px solid var(--orange);
  outline-offset: 2px;
}