/* ========= AIOption Palette ========= */
:root{
  --ao-bg: #0d111c;
  --ao-panel: #0b1225;
  --ao-text: #ffffff;
  --ao-muted: #cdd5e0;

  --ao-stroke: #2e3448;
  --ao-stroke-soft: rgba(255,255,255,.08);

  --ao-accent: #8b5cf6;      /* violet */
  --ao-accent-2: #3b82f6;    /* blue  */
  --ao-grad: linear-gradient(90deg, var(--ao-accent), var(--ao-accent-2));

  --ao-accent-weak: rgba(139,92,246,.75);
  --ao-accent-weak-2: rgba(59,130,246,.75);

  --ao-shadow: 0 8px 32px rgba(98, 88, 199, .25);
}

/* ========= ЗАГАЛЬНІ СТИЛІ ========= */
body {
  margin: 0;
  font-family: 'Segoe UI', system-ui, -apple-system, "Inter", Roboto, sans-serif;
  background-color: var(--ao-bg);
  color: var(--ao-text);
}

.container {
  display: flex;
  height: 100vh;
  overflow: hidden;
}

.auth-box {
  width: 50%;
  display: flex;
  flex-direction: column;
  padding: 40px;
  box-sizing: border-box;
  position: relative;
}

.header {
  width: 100%;
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 40px;
  padding: 0 10px;
  position: relative;
}

.form-wrapper {
  width: 100%;
  max-width: 600px;
  margin: 60px auto 0;
  padding: 0 20px;
  box-sizing: border-box;
}

@media (max-width: 768px) {
  .auth-box {
    width: 100%;
    padding: 20px;
  }
  .form-wrapper {
    max-width: 100%;
  }
  .header {
    padding: 0;
    margin-bottom: 20px;
  }
}

.image-box {
  flex: 1;
  display: block;
}

.image-box img {
  width: 100%;
  height: 100vh;
  object-fit: cover;
}

@media (max-width: 768px) {
  .image-box { display: none; }
  .auth-box { max-width: 100%; padding: 20px; }
}

/* ========= ШАПКА ========= */
.logo {
  font-size: 24px;
  font-weight: 800;
  text-decoration: none;
  background: var(--ao-grad);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent; /* градієнтний текст */
  letter-spacing: .5px;
}

.menu-toggle {
  font-size: 26px;
  color: var(--ao-text);
  cursor: pointer;
  transition: color 0.2s ease, transform 0.3s ease;
}

.menu-toggle.active {
  transform: rotate(90deg);
  color: var(--ao-accent);
}

.menu-dropdown {
  position: absolute;
  top: 40px;
  right: 0;
  background-color: var(--ao-panel);
  border: 1px solid var(--ao-stroke);
  border-radius: 10px;
  padding: 10px 0;
  display: none;
  flex-direction: column;
  box-shadow: 0 12px 32px rgba(10, 8, 30, 0.55);
  z-index: 100;
}

.menu-dropdown.active { display: flex; }

.menu-item {
  color: var(--ao-text);
  text-decoration: none;
  padding: 10px 20px;
  transition: background 0.2s, color 0.2s, box-shadow .2s ease;
  font-size: 14px;
  cursor: pointer;
  position: relative;
  opacity: .92;
}

.menu-item:hover {
  background-color: rgba(139,92,246,.08);
  color: var(--ao-text);
  box-shadow: inset 0 0 0 999px rgba(139,92,246,.06);
}

.menu-item.language { position: relative; cursor: pointer; }

.language-options {
  display: none;
  flex-direction: column;
  margin-top: 6px;
  padding-left: 10px;
}

.menu-item.language:hover .language-options,
.menu-item.language.active .language-options { display: flex; }

.language-options a {
  color: var(--ao-muted);
  text-decoration: none;
  padding: 6px 10px;
  border-radius: 6px;
  transition: background .2s, color .2s;
}

.language-options a:hover {
  background: rgba(139,92,246,.1);
  color: var(--ao-text);
}

/* ========= ТАБИ ========= */
.tabs {
  display: flex;
  margin-bottom: 24px;
  border-bottom: 1px solid var(--ao-stroke);
}

.tab {
  flex: 1;
  padding: 12px;
  background: transparent;
  border: none;
  font-size: 16px;
  font-weight: 800;
  color: var(--ao-text);
  opacity: .8;
  border-bottom: 2px solid transparent;
  cursor: pointer;
  transition: border 0.3s, opacity .2s;
}

.tab:hover { opacity: 1; }

.tab.active {
  border-bottom: 2px solid var(--ao-accent);
  opacity: 1;
}

/* ========= ПОЛЯ ВВОДУ ========= */
.input-box {
  width: 100%;
  position: relative;
  margin-bottom: 24px;
}

.input-box input {
  width: 100%;
  padding: 14px 0 6px;
  background: transparent;
  border: none;
  border-bottom: 1px solid #3b3f55;
  font-size: 16px;
  color: var(--ao-text);
  outline: none;
  transition: all 0.25s ease;
}

.input-box input::placeholder{ color: transparent; }

.input-box input:focus {
  border-color: var(--ao-accent);
  box-shadow: 0 1px 0 0 var(--ao-accent);
}

.input-box label {
  position: absolute;
  top: 14px;
  left: 0;
  color: #a7b0c2;
  font-size: 16px;
  pointer-events: none;
  transition: 0.2s ease all;
  background-color: var(--ao-bg);
  padding: 0 0; /* додаємо фон тільки коли піднімається */
}

.input-box input:focus + label,
.input-box input:not(:placeholder-shown):not([type="password"]):valid + label,
.input-box input:valid + label {
  top: -8px;
  font-size: 12px;
  color: var(--ao-accent);
  background-color: var(--ao-bg);
  padding: 0 4px;
  border-radius: 4px;
}

/* ========= КНОПКИ ========= */
button[type="submit"] {
  width: 100%;
  padding: 16px;
  background: var(--ao-grad);
  border: 1px solid rgba(255,255,255,.06);
  border-radius: 10px;
  color: #0b0b12;
  font-weight: 800;
  font-size: 16px;
  cursor: pointer;
  transition: transform .15s ease, box-shadow .2s ease, filter .2s ease;
  margin-top: 16px;
  box-shadow: var(--ao-shadow), 0 0 0 6px rgba(139,92,246,.10); /* м’яке кільце */
}

button[type="submit"]:hover {
  transform: translateY(-1px);
  box-shadow: 0 12px 36px rgba(92,129,246,.35), 0 0 0 8px rgba(139,92,246,.14);
}

button[type="submit"]:active {
  transform: none;
  filter: brightness(.98);
}

/* ========= ПРОМОКОД ========= */
.promo-toggle {
  color: var(--ao-muted);
  font-size: 14px;
  margin-bottom: 8px;
}

/* ========= АНІМАЦІЇ ========= */
form {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.3s ease, transform 0.3s ease;
  display: none;
  flex-direction: column;
}

form.show {
  opacity: 1;
  transform: translateY(0);
  display: flex;
}

/* ========= СПОВІЩЕННЯ ========= */
.error-message {
  background-color: #ff4d4d;
  color: white;
  padding: 10px;
  border-radius: 8px;
  margin-bottom: 16px;
  text-align: center;
  font-size: 14px;
  border: 1px solid rgba(255,255,255,.08);
  box-shadow: 0 10px 24px rgba(0,0,0,.25);
}

/* ========= ВЕРИФІКАЦІЯ ========= */
.verify-button {
  padding: 12px 0;
  width: 100%;
  font-size: 14px;
  font-weight: 800;
  background-color: transparent;
  color: var(--ao-text);
  border: 1.5px solid var(--ao-accent);
  border-radius: 999px;
  cursor: pointer;
  transition: background-color 0.25s ease, color 0.25s ease, box-shadow .25s ease, transform .15s ease;
  margin-top: 20px;
  text-align: center;
  box-shadow:
    inset 0 0 0 1px rgba(139,92,246,.25),
    0 0 0 6px rgba(139,92,246,.12); /* кільце */
}

.verify-button:hover {
  background: var(--ao-grad);
  color: #0b0b12;
  transform: translateY(-1px);
  box-shadow:
    0 12px 28px rgba(102,76,230,.45),
    0 0 0 8px rgba(139,92,246,.16);
}

/* ========= МЕНЮ (мобільне) дрібні покращення ========= */
.menu-item:hover .emoji { filter: drop-shadow(0 0 8px rgba(139,92,246,.35)); }