/* TigoMeNote · pages/auth.css (login.html)
   Desktop: nagpapalit ng puwesto ang art panel at form pag Sign in ↔ Create account (body.is-register).
   Phone: form lang, may malambot na background at slide ng card. */

.auth { min-height: 100vh; min-height: 100dvh; position: relative; overflow-x: hidden; }

/* ---------- Form side ---------- */
.auth-main { position: relative; isolation: isolate; display: flex; flex-direction: column; padding: 14px 18px 32px; min-height: 100vh; min-height: 100dvh; }
.auth-main::before {
  /* malambot na background: dot grid + accent glow */
  content: ""; position: absolute; inset: 0; z-index: -1; pointer-events: none;
  background:
    radial-gradient(60% 45% at 85% 0%, var(--accent-soft) 0%, transparent 70%),
    radial-gradient(circle at 1px 1px, color-mix(in srgb, var(--text) 9%, transparent) 1px, transparent 0) 0 0 / 22px 22px;
  -webkit-mask-image: radial-gradient(120% 90% at 50% 40%, #000 40%, transparent 100%);
          mask-image: radial-gradient(120% 90% at 50% 40%, #000 40%, transparent 100%);
}
.auth-top { display: flex; align-items: center; justify-content: space-between; }
.auth-card {
  width: 100%; max-width: 400px; margin: 0 auto; padding: 7vh 0 0; display: grid; gap: 6px;
  transition: opacity .35s var(--ease), transform .45s var(--ease);
}
.auth-card.swap-out { opacity: 0; transform: translateY(10px) scale(.985); }
.auth-card h1 { font-size: 32px; letter-spacing: -0.035em; }
.auth-tabs { margin: 20px 0 6px; width: 100%; position: relative; }
.auth-tabs button { flex: 1; justify-content: center; height: 38px; position: relative; z-index: 1; transition: color .25s; }
.auth-tabs button[aria-pressed="true"] { background: transparent; box-shadow: none; }
.auth-tabs::before {
  /* sliding pill sa likod ng active tab */
  content: ""; position: absolute; top: 4px; bottom: 4px; left: 4px; width: calc(50% - 5px);
  border-radius: var(--r-full); background: var(--surface); box-shadow: var(--shadow-sm);
  transition: transform .45s var(--ease);
}
.is-register .auth-tabs::before { transform: translateX(calc(100% + 2px)); }

.auth-form { display: grid; gap: 16px; margin-top: 10px; }
.auth-foot { margin-top: 16px; text-align: center; }

.reg-only { animation: field-in .4s var(--ease); }
@keyframes field-in { from { opacity: 0; transform: translateY(-6px); } }

.at-wrap .at { position: absolute; left: 14px; top: 50%; transform: translateY(-50%); color: var(--text-3); font-weight: 500; pointer-events: none; }
.at-wrap .input { padding-left: 32px; padding-right: 14px; }

.strength { display: grid; grid-template-columns: repeat(4, 1fr); gap: 4px; margin-top: 2px; }
.strength i { height: 4px; border-radius: 2px; background: var(--surface-2); transition: background-color .2s; }
.strength[data-level="1"] i:nth-child(-n+1) { background: var(--danger); }
.strength[data-level="2"] i:nth-child(-n+2) { background: #f59e0b; }
.strength[data-level="3"] i:nth-child(-n+3) { background: #84cc16; }
.strength[data-level="4"] i { background: var(--success); }

.input[aria-invalid="true"] { border-color: var(--danger); }

/* ---------- Art panel (desktop lang) ---------- */
.auth-art { display: none; }

@media (min-width: 900px) {
  :root { --art-w: 44%; }
  .auth { height: 100vh; height: 100dvh; overflow: hidden; }

  .auth-art, .auth-main {
    position: absolute; top: 0; bottom: 0;
    transition: left .8s cubic-bezier(.7,0,.2,1), border-radius .8s cubic-bezier(.7,0,.2,1);
  }
  .auth-art { left: 0; width: var(--art-w); }
  .auth-main { left: var(--art-w); width: calc(100% - var(--art-w)); min-height: 0; padding: 24px 36px; overflow-y: auto; }
  .is-register .auth-art { left: calc(100% - var(--art-w)); }
  .is-register .auth-main { left: 0; }

  .auth-art {
    display: flex; flex-direction: column; justify-content: space-between; padding: 30px 36px;
    background: #0d0d10; color: #fff; overflow: hidden; z-index: 2;
  }
  .auth-art > * { position: relative; }

  /* Gumagalaw na kulay sa likod */
  .art-bg { position: absolute !important; inset: 0; overflow: hidden; }
  .blob { position: absolute; border-radius: 50%; filter: blur(70px); opacity: .55; }
  .b1 { width: 60%; aspect-ratio: 1; background: #ff5a36; left: -15%; top: -10%; animation: drift1 16s ease-in-out infinite alternate; }
  .b2 { width: 55%; aspect-ratio: 1; background: #7c3aed; right: -20%; top: 30%; animation: drift2 19s ease-in-out infinite alternate; }
  .b3 { width: 50%; aspect-ratio: 1; background: #2563eb; left: 10%; bottom: -25%; animation: drift3 22s ease-in-out infinite alternate; }
  .grain {
    position: absolute; inset: 0; opacity: .12; 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='.9' numOctaves='2'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
  }
  @keyframes drift1 { to { transform: translate(30%, 25%) scale(1.15); } }
  @keyframes drift2 { to { transform: translate(-35%, -20%) scale(.9); } }
  @keyframes drift3 { to { transform: translate(25%, -30%) scale(1.1); } }
  .is-register .b1 { background: #16a34a; }
  .is-register .b2 { background: #ff5a36; }
  .blob { transition: background-color 1.2s var(--ease); }

  /* Quote: magpapalit depende sa mode */
  .auth-quote { display: grid; }
  .auth-quote .q {
    grid-area: 1 / 1; font-family: var(--font-display); font-size: clamp(28px, 2.6vw, 42px); font-weight: 700;
    line-height: 1.1; letter-spacing: -0.03em; transition: opacity .5s var(--ease) .25s, transform .6s var(--ease) .25s;
  }
  .auth-quote span { opacity: .5; }
  .q-register { opacity: 0; transform: translateY(14px); }
  .is-register .q-login { opacity: 0; transform: translateY(-14px); transition-delay: 0s; }
  .is-register .q-register { opacity: 1; transform: none; }

  /* Tiles: lumulutang at nagpapalit ng ayos */
  .auth-tiles { display: grid; grid-template-columns: repeat(4, 1fr); gap: 10px; }
  .auth-tiles .t {
    aspect-ratio: 3 / 4; border-radius: 18px; box-shadow: 0 20px 40px -18px rgba(0,0,0,.6);
    transition: transform .8s cubic-bezier(.7,0,.2,1);
    animation: bob 6s ease-in-out infinite;
  }
  .t1 { background: linear-gradient(160deg, #ffd9cc, #ff8a6b 60%, #c2410c); }
  .t2 { background: linear-gradient(160deg, #e9d5ff, #a78bfa 60%, #6d28d9); animation-delay: -1.5s; }
  .t3 { background: linear-gradient(160deg, #dbeafe, #93c5fd 60%, #2563eb); animation-delay: -3s; }
  .t4 { background: linear-gradient(160deg, #dcfce7, #86efac 60%, #15803d); animation-delay: -4.5s; }
  @keyframes bob { 50% { translate: 0 -12px; } }
  .is-register .t1 { transform: translateX(calc(300% + 30px)) rotate(4deg); }
  .is-register .t2 { transform: translateX(-100%) translateX(-10px) rotate(-3deg); }
  .is-register .t3 { transform: translateX(-100%) translateX(-10px) rotate(3deg); }
  .is-register .t4 { transform: translateX(-100%) translateX(-10px) rotate(-4deg); }

  .auth-brand-sm { visibility: hidden; }
  .auth-card { margin: auto; padding-top: 0; }
}

/* Walang animation sa unang load */
.no-anim *, .no-anim *::before, .no-anim *::after { transition: none !important; }

/* ---------- Username field: walang @ sa Sign in (pwede email) ---------- */
.at-wrap.no-at .at { display: none; }
.at-wrap.no-at .input { padding-left: 14px; }

/* ---------- Verify email ---------- */
.verify { display: grid; gap: 8px; }
.verify-ic {
  width: 60px; height: 60px; border-radius: 18px; display: grid; place-items: center; margin-bottom: 8px;
  background: var(--accent-soft); color: var(--accent);
}
.verify h1 { font-size: 32px; letter-spacing: -0.035em; }
.verify b { color: var(--text); font-weight: 600; white-space: nowrap; }
.verify-form { display: grid; gap: 16px; margin-top: 18px; }
.otp { display: grid; grid-template-columns: repeat(6, 1fr); gap: 8px; }
.otp input {
  width: 100%; height: 58px; text-align: center; font-family: var(--font-display); font-size: 26px; font-weight: 700;
  border-radius: var(--r-md); border: 1px solid var(--line-strong); background: var(--surface); color: var(--text);
  transition: border-color .15s, box-shadow .15s, transform .15s var(--ease); caret-color: var(--accent);
}
.otp input:focus { outline: none; border-color: var(--text); box-shadow: 0 0 0 3px color-mix(in srgb, var(--text) 10%, transparent); transform: translateY(-1px); }
.otp input.bad { border-color: var(--danger); }
.otp.shake { animation: shake .4s; }
@keyframes shake { 20%, 60% { transform: translateX(-6px); } 40%, 80% { transform: translateX(6px); } }
.verify-links { display: flex; align-items: center; justify-content: center; gap: 10px; margin-top: 14px; flex-wrap: wrap; }
@media (max-width: 380px) { .otp { gap: 6px; } .otp input { height: 50px; font-size: 22px; } }

/* ---------- Forgot password ---------- */
.forgot-link { justify-self: end; font-size: 13px; margin-top: 2px; }
.verify-form .field { text-align: left; }

.auth-top-actions { display: flex; align-items: center; gap: 8px; }