:root {
  --bg: #050507;
  --surface: #101014;
  --surface-2: #17171c;
  --border: rgba(255, 255, 255, 0.08);

  --purple: #8b3dff;
  --purple-2: #c54dff;

  --text: #ffffff;
  --muted: #8f8f9b;

  --danger: #ff5f75;
  --success: #53d79a;
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;

  -webkit-tap-highlight-color: transparent;
}

html {
  min-height: 100%;
  background: var(--bg);
}

body {
  min-height: 100vh;

  font-family:
    Inter,
    system-ui,
    -apple-system,
    BlinkMacSystemFont,
    "Segoe UI",
    sans-serif;

  color: var(--text);

  background:
    radial-gradient(
      circle at 50% -10%,
      rgba(139, 61, 255, 0.2),
      transparent 36%
    ),
    radial-gradient(
      circle at 100% 55%,
      rgba(197, 77, 255, 0.07),
      transparent 30%
    ),
    var(--bg);

  overflow-x: hidden;
}

button,
input {
  font: inherit;
}

button {
  border: 0;
  color: inherit;
  cursor: pointer;
}

button:disabled {
  cursor: not-allowed;
}

input {
  width: 100%;

  border: 0;
  outline: none;

  color: var(--text);
  background: transparent;
}

.hidden {
  display: none !important;
}


/* =========================
   PAGE
========================= */

.auth-page {
  width: 100%;
  min-height: 100vh;

  display: flex;
  align-items: center;
  justify-content: center;

  padding: 24px 16px;
}


/* =========================
   CARD
========================= */

.auth-card {
  width: min(440px, 100%);

  padding: 32px 28px 26px;

  border: 1px solid var(--border);
  border-radius: 30px;

  background:
    linear-gradient(
      180deg,
      rgba(23, 23, 28, 0.96),
      rgba(13, 13, 17, 0.96)
    );

  box-shadow:
    0 30px 100px rgba(0, 0, 0, 0.65),
    0 0 60px rgba(139, 61, 255, 0.08);

  backdrop-filter: blur(24px);
}


/* =========================
   BRAND
========================= */

.brand {
  text-align: center;

  font-size: 42px;
  font-weight: 900;

  letter-spacing: 0.5px;

  background:
    linear-gradient(
      135deg,
      #ffffff,
      #c54dff
    );

  -webkit-background-clip: text;
  background-clip: text;

  color: transparent;
}

.tagline {
  margin-top: 6px;

  text-align: center;

  color: var(--muted);

  font-size: 12px;
}


/* =========================
   TABS
========================= */

.auth-tabs {
  display: grid;
  grid-template-columns: 1fr 1fr;

  gap: 6px;

  margin-top: 30px;
  padding: 5px;

  border-radius: 15px;

  background: rgba(255, 255, 255, 0.045);
}

.auth-tab {
  min-height: 42px;

  border-radius: 11px;

  color: var(--muted);

  font-size: 13px;
  font-weight: 700;

  transition:
    background 0.2s ease,
    color 0.2s ease;
}

.auth-tab.active {
  color: #ffffff;

  background:
    linear-gradient(
      135deg,
      var(--purple),
      var(--purple-2)
    );

  box-shadow:
    0 8px 25px rgba(139, 61, 255, 0.24);
}


/* =========================
   FORMS
========================= */

.auth-form {
  display: none;

  margin-top: 26px;
}

.auth-form.active {
  display: block;
}


/* =========================
   FIELD
========================= */

.field {
  margin-top: 17px;
}

.field:first-child {
  margin-top: 0;
}

.field label {
  display: block;

  margin-bottom: 8px;

  color: #d9d9df;

  font-size: 12px;
  font-weight: 700;
}

.field input {
  height: 52px;

  padding: 0 15px;

  border:
    1px solid
    rgba(255, 255, 255, 0.08);

  border-radius: 15px;

  background:
    rgba(255, 255, 255, 0.045);

  transition:
    border-color 0.2s ease,
    background 0.2s ease,
    box-shadow 0.2s ease;
}

.field input::placeholder {
  color: #666671;
}

.field input:focus {
  border-color:
    rgba(139, 61, 255, 0.7);

  background:
    rgba(139, 61, 255, 0.06);

  box-shadow:
    0 0 0 4px
    rgba(139, 61, 255, 0.09);
}


/* =========================
   USERNAME
========================= */

.username-input {
  position: relative;
}

.username-input span {
  position: absolute;

  left: 15px;
  top: 50%;

  transform: translateY(-50%);

  color: var(--muted);

  font-size: 15px;
  font-weight: 700;

  pointer-events: none;
}

.username-input input {
  padding-left: 31px;
}


/* =========================
   PRIMARY BUTTON
========================= */

.primary-button {
  width: 100%;

  min-height: 52px;

  margin-top: 24px;

  border-radius: 15px;

  color: #ffffff;

  background:
    linear-gradient(
      135deg,
      var(--purple),
      var(--purple-2)
    );

  font-size: 14px;
  font-weight: 800;

  box-shadow:
    0 12px 30px
    rgba(139, 61, 255, 0.24);

  transition:
    transform 0.2s ease,
    box-shadow 0.2s ease,
    opacity 0.2s ease;
}

.primary-button:hover {
  transform: translateY(-1px);

  box-shadow:
    0 16px 35px
    rgba(139, 61, 255, 0.32);
}

.primary-button:active {
  transform: translateY(1px);
}

.primary-button:disabled {
  opacity: 0.55;
  cursor: not-allowed;
}


/* =========================
   SECONDARY BUTTON
========================= */

.secondary-button {
  width: 100%;

  min-height: 50px;

  margin-top: 20px;

  border:
    1px solid
    rgba(139, 61, 255, 0.35);

  border-radius: 15px;

  color: #ffffff;

  background:
    rgba(139, 61, 255, 0.08);

  font-size: 13px;
  font-weight: 800;

  transition:
    background 0.2s ease,
    border-color 0.2s ease;
}

.secondary-button:hover {
  background:
    rgba(139, 61, 255, 0.15);

  border-color:
    rgba(139, 61, 255, 0.6);
}


/* =========================
   MESSAGE
========================= */

.form-message {
  min-height: 18px;

  margin-top: 12px;

  text-align: center;

  color: var(--muted);

  font-size: 11px;
  line-height: 1.5;
}

.form-message.error {
  color: var(--danger);
}

.form-message.success {
  color: var(--success);
}


/* =========================
   PROFILE SETUP
========================= */

.profile-setup {
  margin-top: 26px;

  text-align: center;
}

.profile-setup-icon {
  width: 82px;
  height: 82px;

  margin: 0 auto;

  display: flex;
  align-items: center;
  justify-content: center;

  border-radius: 50%;

  background:
    linear-gradient(
      135deg,
      var(--purple),
      var(--purple-2)
    );

  font-size: 30px;
  font-weight: 900;

  box-shadow:
    0 0 35px
    rgba(139, 61, 255, 0.28);
}

.profile-setup h2 {
  margin-top: 18px;

  font-size: 21px;
}

.profile-setup p {
  margin-top: 7px;

  color: var(--muted);

  font-size: 12px;
}


/* =========================
   PROFILE MODAL
========================= */

.profile-modal {
  position: fixed;
  inset: 0;

  z-index: 5000;

  display: flex;
  align-items: center;
  justify-content: center;

  padding: 16px;
}

.profile-modal-backdrop {
  position: absolute;
  inset: 0;

  background:
    rgba(0, 0, 0, 0.82);

  backdrop-filter: blur(18px);
}

.profile-modal-card {
  position: relative;
  z-index: 2;

  width: min(500px, 100%);
  max-height: 92vh;

  overflow-y: auto;

  padding: 30px 22px 24px;

  border:
    1px solid
    rgba(255, 255, 255, 0.08);

  border-radius: 28px;

  background:
    radial-gradient(
      circle at 50% 0%,
      rgba(139, 61, 255, 0.12),
      transparent 38%
    ),
    var(--surface);

  box-shadow:
    0 30px 100px
    rgba(0, 0, 0, 0.75);
}

.modal-close {
  position: absolute;

  right: 14px;
  top: 14px;

  width: 40px;
  height: 40px;

  border-radius: 50%;

  color: #ffffff;

  background:
    rgba(255, 255, 255, 0.07);

  font-size: 25px;
}


/* =========================
   LARGE AVATAR
========================= */

.modal-avatar-wrap {
  display: flex;
  justify-content: center;
}

.large-avatar-preview {
  width: 100px;
  height: 100px;

  display: flex;
  align-items: center;
  justify-content: center;

  border-radius: 50%;

  color: #ffffff;

  font-size: 36px;
  font-weight: 900;

  box-shadow:
    0 0 35px
    rgba(139, 61, 255, 0.25);
}

.profile-modal-card > h2 {
  margin-top: 18px;

  text-align: center;

  font-size: 21px;
}

.profile-modal-card > p {
  margin-top: 6px;

  text-align: center;

  color: var(--muted);

  font-size: 12px;
}


/* =========================
   SETUP GROUP
========================= */

.setup-group {
  margin-top: 24px;
}

.setup-group h3 {
  margin-bottom: 10px;

  color: #e5e5ea;

  font-size: 12px;
}


/* =========================
   LETTER GRID
========================= */

.letter-grid {
  display: grid;

  grid-template-columns:
    repeat(7, minmax(0, 1fr));

  gap: 7px;
}

.letter-option {
  min-height: 39px;

  border:
    1px solid
    rgba(255, 255, 255, 0.07);

  border-radius: 10px;

  color: #d8d8df;

  background:
    rgba(255, 255, 255, 0.035);

  font-size: 12px;
  font-weight: 800;

  transition:
    background 0.15s ease,
    border-color 0.15s ease;
}

.letter-option:hover {
  background:
    rgba(139, 61, 255, 0.09);
}

.letter-option.selected {
  border-color:
    rgba(139, 61, 255, 0.7);

  color: #ffffff;

  background:
    rgba(139, 61, 255, 0.18);
}


/* =========================
   COLORS
========================= */

.color-grid,
.gradient-grid {
  display: flex;

  flex-wrap: wrap;

  gap: 10px;
}

.color-option {
  width: 42px;
  height: 42px;

  border-radius: 50%;

  border:
    3px solid
    transparent;

  box-shadow:
    0 6px 18px
    rgba(0, 0, 0, 0.3);

  transition:
    transform 0.15s ease,
    border-color 0.15s ease;
}

.color-option:hover {
  transform: scale(1.06);
}

.color-option.selected {
  border-color: #ffffff;
}

.gradient-option {
  width: 56px;
  height: 42px;

  border-radius: 12px;

  border:
    2px solid
    transparent;

  box-shadow:
    0 6px 18px
    rgba(0, 0, 0, 0.3);

  transition:
    transform 0.15s ease,
    border-color 0.15s ease;
}

.gradient-option:hover {
  transform: scale(1.05);
}

.gradient-option.selected {
  border-color: #ffffff;
}


/* =========================
   BACKEND STATUS
========================= */

.backend-status {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 7px;

  margin-top: 24px;

  color: #666671;

  font-size: 10px;
  font-weight: 700;
}

.status-dot {
  width: 6px;
  height: 6px;

  border-radius: 50%;

  background: var(--purple);

  box-shadow:
    0 0 10px
    rgba(139, 61, 255, 0.7);
}


/* =========================
   MOBILE
========================= */

@media (max-width: 480px) {
  .auth-page {
    padding: 14px;
  }

  .auth-card {
    padding:
      28px 18px 22px;

    border-radius: 25px;
  }

  .brand {
    font-size: 38px;
  }

  .letter-grid {
    grid-template-columns:
      repeat(6, minmax(0, 1fr));
  }

  .profile-modal-card {
    padding:
      27px 16px 20px;

    border-radius: 25px;
  }
}


/* =========================
   TABLET / LARGE SCREENS
========================= */

@media (min-width: 768px) {
  .auth-page {
    padding: 40px 20px;
  }

  .auth-card {
    padding:
      38px 32px 30px;
  }
}


/* =========================
   REDUCED MOTION
========================= */

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;

    transition-duration:
      0.01ms !important;

    animation-duration:
      0.01ms !important;
  }
  }