/* ════════════════════════════════════════════════════════════════════════════
 * v2-login.css — aurora-hero login screen for telgautopost-v2.
 *
 * Fully self-contained and namespaced under .login-screen so it can never leak
 * into the authenticated app. A slow-drifting aurora gradient (indigo → teal →
 * magenta) fills the viewport behind a frosted-glass card. All keyframe names
 * are prefixed `v2login-` to avoid collisions with any other stylesheet.
 *
 * Dark is the default; a lighter variant is provided for
 * :root[data-theme="light"].
 * ══════════════════════════════════════════════════════════════════════════ */

/* ── full-viewport aurora stage ────────────────────────────────────────────── */
.login-screen {
  position: fixed;
  inset: 0;
  z-index: 20;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px;
  overflow: hidden;
  background:
    radial-gradient(1200px 800px at 18% 22%, rgba(99, 102, 241, 0.55), transparent 60%),
    radial-gradient(1000px 720px at 82% 30%, rgba(20, 184, 166, 0.45), transparent 62%),
    radial-gradient(1100px 900px at 55% 88%, rgba(217, 70, 239, 0.45), transparent 60%),
    #05060f;
  background-size: 200% 200%;
  animation: v2login-drift 26s ease-in-out infinite;
  -webkit-font-smoothing: antialiased;
}

/* second animated aurora layer + soft vignette, drifting on its own rhythm */
.login-screen::before {
  content: '';
  position: absolute;
  inset: -20%;
  z-index: 0;
  pointer-events: none;
  background:
    radial-gradient(760px 620px at 70% 18%, rgba(56, 189, 248, 0.40), transparent 60%),
    radial-gradient(820px 680px at 22% 78%, rgba(129, 140, 248, 0.38), transparent 62%),
    radial-gradient(680px 560px at 88% 82%, rgba(244, 114, 182, 0.34), transparent 60%);
  filter: blur(28px);
  animation: v2login-aurora 34s ease-in-out infinite alternate;
}

/* fine grain / vignette to keep the glass reading premium, not flat */
.login-screen::after {
  content: '';
  position: absolute;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  background: radial-gradient(140% 120% at 50% 40%, transparent 55%, rgba(2, 3, 12, 0.55) 100%);
}

@keyframes v2login-drift {
  0%   { background-position: 0% 0%; }
  25%  { background-position: 100% 12%; }
  50%  { background-position: 88% 100%; }
  75%  { background-position: 12% 78%; }
  100% { background-position: 0% 0%; }
}

@keyframes v2login-aurora {
  0%   { transform: translate3d(-3%, -2%, 0) rotate(0deg)   scale(1.05); opacity: 0.9; }
  50%  { transform: translate3d(3%, 2%, 0)   rotate(6deg)   scale(1.12); opacity: 1; }
  100% { transform: translate3d(-2%, 3%, 0)  rotate(-4deg)  scale(1.08); opacity: 0.92; }
}

/* ── frosted-glass card ────────────────────────────────────────────────────── */
.login-screen .login-card {
  position: relative;
  z-index: 1;
  width: 100%;
  max-width: 400px;
  padding: 40px 36px 34px;
  border-radius: 22px;
  background: rgba(17, 20, 38, 0.55);
  border: 1px solid rgba(255, 255, 255, 0.14);
  backdrop-filter: blur(20px) saturate(140%);
  -webkit-backdrop-filter: blur(20px) saturate(140%);
  box-shadow:
    0 24px 70px rgba(2, 3, 15, 0.55),
    0 2px 0 rgba(255, 255, 255, 0.10) inset,
    0 0 60px rgba(129, 140, 248, 0.20);
  text-align: center;
  color: #eef1ff;
  animation: v2login-card-in 0.7s cubic-bezier(0.16, 1, 0.3, 1) both;
}

/* subtle top light-edge highlight */
.login-screen .login-card::before {
  content: '';
  position: absolute;
  inset: 0;
  border-radius: inherit;
  padding: 1px;
  background: linear-gradient(135deg, rgba(255, 255, 255, 0.45), rgba(255, 255, 255, 0) 42%);
  -webkit-mask: linear-gradient(#000 0 0) content-box, linear-gradient(#000 0 0);
  -webkit-mask-composite: xor;
  mask-composite: exclude;
  pointer-events: none;
  opacity: 0.7;
}

@keyframes v2login-card-in {
  from { opacity: 0; transform: translateY(18px) scale(0.98); }
  to   { opacity: 1; transform: translateY(0) scale(1); }
}

/* ── floating logo ─────────────────────────────────────────────────────────── */
.login-screen .login-logo {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 72px;
  height: 72px;
  margin: 0 auto 18px;
  border-radius: 20px;
  background: linear-gradient(135deg, #6366f1, #14b8a6 55%, #d946ef);
  box-shadow:
    0 10px 30px rgba(99, 102, 241, 0.45),
    0 0 0 1px rgba(255, 255, 255, 0.12) inset;
  color: #fff;
  font-size: 30px;
  font-weight: 800;
  animation: v2login-float 5.5s ease-in-out infinite;
}

.login-screen .login-logo img,
.login-screen .login-logo svg {
  width: 60%;
  height: 60%;
  object-fit: contain;
  display: block;
}

@keyframes v2login-float {
  0%, 100% { transform: translateY(0) rotate(0deg); }
  50%      { transform: translateY(-8px) rotate(-1.5deg); }
}

/* ── typography ────────────────────────────────────────────────────────────── */
.login-screen .login-card h1 {
  margin: 0 0 6px;
  font-size: 25px;
  font-weight: 750;
  letter-spacing: -0.01em;
  background: linear-gradient(90deg, #ffffff, #c7d0ff);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  color: #ffffff;
}

.login-screen .login-card p {
  margin: 0 0 26px;
  font-size: 14px;
  line-height: 1.5;
  color: rgba(226, 230, 255, 0.68);
}

/* ── inputs ────────────────────────────────────────────────────────────────── */
.login-screen .login-card input {
  width: 100%;
  box-sizing: border-box;
  margin-bottom: 14px;
  padding: 13px 15px;
  font-size: 14.5px;
  color: #f3f5ff;
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.16);
  border-radius: 12px;
  outline: none;
  transition: border-color 0.18s ease, box-shadow 0.18s ease, background 0.18s ease;
}

.login-screen .login-card input::placeholder {
  color: rgba(226, 230, 255, 0.42);
}

.login-screen .login-card input:hover {
  border-color: rgba(255, 255, 255, 0.28);
}

.login-screen .login-card input:focus {
  background: rgba(255, 255, 255, 0.10);
  border-color: rgba(129, 140, 248, 0.85);
  box-shadow:
    0 0 0 3px rgba(99, 102, 241, 0.28),
    0 0 22px rgba(56, 189, 248, 0.22);
}

/* ── animated gradient sign-in button ─────────────────────────────────────── */
.login-screen .btn-primary {
  position: relative;
  width: 100%;
  margin-top: 6px;
  padding: 13px 18px;
  font-size: 15px;
  font-weight: 650;
  letter-spacing: 0.01em;
  color: #fff;
  border: none;
  border-radius: 12px;
  cursor: pointer;
  overflow: hidden;
  background: linear-gradient(120deg, #6366f1, #14b8a6, #d946ef, #6366f1);
  background-size: 280% 280%;
  box-shadow: 0 10px 26px rgba(99, 102, 241, 0.40);
  animation: v2login-btn-flow 8s ease infinite;
  transition: transform 0.14s ease, box-shadow 0.18s ease, filter 0.18s ease;
}

.login-screen .btn-primary:hover {
  transform: translateY(-1px);
  filter: brightness(1.06);
  box-shadow: 0 14px 34px rgba(99, 102, 241, 0.52), 0 0 22px rgba(20, 184, 166, 0.35);
}

.login-screen .btn-primary:active {
  transform: translateY(0);
  box-shadow: 0 8px 20px rgba(99, 102, 241, 0.40);
}

.login-screen .btn-primary:disabled {
  opacity: 0.6;
  cursor: not-allowed;
  transform: none;
}

@keyframes v2login-btn-flow {
  0%   { background-position: 0% 50%; }
  50%  { background-position: 100% 50%; }
  100% { background-position: 0% 50%; }
}

/* ── light-theme variant ───────────────────────────────────────────────────── */
:root[data-theme="light"] .login-screen {
  background:
    radial-gradient(1200px 800px at 18% 22%, rgba(129, 140, 248, 0.42), transparent 60%),
    radial-gradient(1000px 720px at 82% 30%, rgba(45, 212, 191, 0.38), transparent 62%),
    radial-gradient(1100px 900px at 55% 88%, rgba(232, 121, 249, 0.36), transparent 60%),
    #eef1fb;
  background-size: 200% 200%;
}

:root[data-theme="light"] .login-screen::after {
  background: radial-gradient(140% 120% at 50% 40%, transparent 62%, rgba(120, 130, 170, 0.18) 100%);
}

:root[data-theme="light"] .login-screen .login-card {
  background: rgba(255, 255, 255, 0.62);
  border-color: rgba(255, 255, 255, 0.7);
  color: #1c2233;
  box-shadow:
    0 24px 60px rgba(60, 70, 120, 0.22),
    0 2px 0 rgba(255, 255, 255, 0.8) inset,
    0 0 50px rgba(129, 140, 248, 0.18);
}

:root[data-theme="light"] .login-screen .login-card h1 {
  background: linear-gradient(90deg, #2b2f57, #4f46e5);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  color: #2b2f57;
}

:root[data-theme="light"] .login-screen .login-card p {
  color: rgba(40, 48, 80, 0.66);
}

:root[data-theme="light"] .login-screen .login-card input {
  color: #1c2233;
  background: rgba(255, 255, 255, 0.72);
  border-color: rgba(60, 70, 120, 0.18);
}

:root[data-theme="light"] .login-screen .login-card input::placeholder {
  color: rgba(40, 48, 80, 0.4);
}

:root[data-theme="light"] .login-screen .login-card input:focus {
  background: #ffffff;
  border-color: rgba(99, 102, 241, 0.75);
  box-shadow:
    0 0 0 3px rgba(99, 102, 241, 0.20),
    0 0 18px rgba(56, 189, 248, 0.18);
}

/* ── reduced-motion: freeze every decorative animation ─────────────────────── */
@media (prefers-reduced-motion: reduce) {
  .login-screen,
  .login-screen::before,
  .login-screen .login-card,
  .login-screen .login-logo,
  .login-screen .btn-primary {
    animation: none !important;
  }
}