/*
 * styles/components.css
 * Estilos de todos os componentes da interface:
 * Card, Inputs, Buttons, Forms, Language Selector, Error Banner, Screens.
 */

/* ══════════════════════════════════════════════════════════════════
   AUTH CARD
══════════════════════════════════════════════════════════════════ */

.card {
  background: var(--color-card-bg);
  border: 1px solid var(--color-border);
  border-top-color: var(--color-border-top);
  border-radius: var(--radius-2xl);
  padding: 38px 42px 34px;
  width: 100%;
  max-width: 400px;
  backdrop-filter: blur(24px) saturate(1.6);
  -webkit-backdrop-filter: blur(24px) saturate(1.6);
  box-shadow:
    0 0 0 1px rgba(255, 255, 255, 0.04),
    0 1px 0 0 rgba(255, 255, 255, 0.16) inset,
    0 32px 80px rgba(0, 0, 0, 0.65),
    0 8px 32px rgba(0, 0, 0, 0.50),
    0 2px 8px rgba(0, 0, 0, 0.35);
  max-height: calc(100vh - 110px);
  overflow-y: auto;
  scrollbar-width: thin;
  scrollbar-color: rgba(255, 255, 255, 0.07) transparent;
  position: relative;
}

/* Brilho interno sutil no topo */
.card::before {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: var(--radius-2xl);
  background: linear-gradient(160deg, rgba(255, 255, 255, 0.10) 0%, transparent 45%);
  pointer-events: none;
}

.card::-webkit-scrollbar { width: 3px; }
.card::-webkit-scrollbar-thumb {
  background: rgba(255, 255, 255, 0.08);
  border-radius: 4px;
}

/* ── Logo ──────────────────────────────────────────────────────── */

.logo {
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: var(--space-6);
}

.logo-svg-wrap {
  display: inline-flex;
  align-items: center;
}

/* ── Título e subtítulo ────────────────────────────────────────── */

.card-title {
  text-align: center;
  font-size: var(--font-size-2xl);
  font-weight: 700;
  color: #fff;
  margin-bottom: 7px;
  letter-spacing: -0.35px;
}

.card-sub {
  text-align: center;
  font-size: var(--font-size-base);
  color: var(--color-text-muted);
  margin-bottom: 22px;
  line-height: 1.55;
}

/* ── Divisor ───────────────────────────────────────────────────── */

.divider {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 15px;
}

.divider-line {
  flex: 1;
  height: 1px;
  background: var(--color-divider);
}

.divider-text {
  font-size: var(--font-size-xs);
  color: rgba(255, 255, 255, 0.22);
  letter-spacing: 0.5px;
}

/* ── Footer do card ────────────────────────────────────────────── */

.card-footer {
  text-align: center;
  font-size: 12.5px;
  color: var(--color-text-footer);
}

/* ══════════════════════════════════════════════════════════════════
   SCREENS (login / register)
══════════════════════════════════════════════════════════════════ */

.screen { display: none; }
.screen.active { display: block; }

/* ══════════════════════════════════════════════════════════════════
   BOTÕES
══════════════════════════════════════════════════════════════════ */

/* Social (GitHub) */
.social-btn {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 10.5px 16px;
  background: var(--color-social-bg);
  border: 1px solid var(--color-social-border);
  border-top-color: rgba(255, 255, 255, 0.22);
  border-radius: var(--radius-lg);
  color: var(--color-social-text);
  font-size: var(--font-size-md);
  font-family: var(--font-primary);
  font-weight: 500;
  cursor: pointer;
  backdrop-filter: blur(16px) saturate(1.4);
  -webkit-backdrop-filter: blur(16px) saturate(1.4);
  box-shadow:
    0 4px 16px rgba(0, 0, 0, 0.30),
    inset 0 1px 0 rgba(255, 255, 255, 0.12);
  transition:
    background var(--transition-base),
    border-color var(--transition-base),
    box-shadow var(--transition-base);
  margin-bottom: 9px;
}

.social-btn:hover:not(:disabled) {
  background: var(--color-social-bg-hover);
  border-color: var(--color-social-border-h);
  box-shadow:
    0 4px 20px rgba(0, 0, 0, 0.40),
    inset 0 1px 0 rgba(255, 255, 255, 0.18);
}

.social-btn:disabled,
.social-btn[aria-busy="true"] {
  opacity: 0.6;
  cursor: not-allowed;
}

/* CTA principal */
.btn-cta {
  width: 100%;
  padding: 12px;
  background: var(--color-cta);
  border: 1px solid rgba(59, 130, 246, 0.45);
  border-top-color: rgba(147, 197, 253, 0.55);
  border-radius: var(--radius-md);
  color: #fff;
  font-size: var(--font-size-lg);
  font-weight: 600;
  font-family: var(--font-primary);
  cursor: pointer;
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  transition:
    background var(--transition-base),
    transform 0.1s,
    box-shadow var(--transition-base),
    border-color var(--transition-base);
  margin-bottom: 18px;
  margin-top: 8px;
  box-shadow:
    0 4px 16px var(--color-cta-shadow),
    inset 0 1px 0 rgba(255, 255, 255, 0.22);
  letter-spacing: 0.1px;
}

.btn-cta:hover:not(:disabled) {
  background: var(--color-cta-hover);
  border-top-color: rgba(147, 197, 253, 0.70);
  box-shadow:
    0 4px 22px var(--color-cta-shadow-h),
    inset 0 1px 0 rgba(255, 255, 255, 0.28);
}

.btn-cta:active:not(:disabled) {
  transform: scale(0.985);
}

.btn-cta:disabled {
  opacity: 0.65;
  cursor: not-allowed;
}

/* Link-style button */
.footer-link,
.field-link {
  color: var(--color-link);
  background: none;
  border: none;
  font-family: var(--font-primary);
  cursor: pointer;
  padding: 0;
}

.footer-link { font-size: 12.5px; }
.field-link  { font-size: var(--font-size-sm); }

.footer-link:hover,
.field-link:hover { text-decoration: underline; }

/* Topbar buttons */
.btn-back,
.btn-lang {
  background: var(--color-topbar-bg);
  border: 1px solid var(--color-topbar-border);
  border-top-color: rgba(255, 255, 255, 0.22);
  color: var(--color-topbar-text);
  border-radius: var(--radius-sm);
  font-size: var(--font-size-base);
  font-family: var(--font-primary);
  cursor: pointer;
  backdrop-filter: blur(14px) saturate(1.3);
  -webkit-backdrop-filter: blur(14px) saturate(1.3);
  box-shadow:
    0 2px 8px rgba(0, 0, 0, 0.25),
    inset 0 1px 0 rgba(255, 255, 255, 0.10);
  transition:
    background var(--transition-base),
    border-color var(--transition-base),
    color var(--transition-base),
    box-shadow var(--transition-base);
}

.btn-back { padding: 7px 18px; }

.btn-lang {
  padding: 7px 14px;
  display: flex;
  align-items: center;
  gap: 7px;
  position: relative;
}

.btn-back:hover,
.btn-lang:hover,
.btn-lang.open {
  background: var(--color-topbar-bg-h);
  border-color: var(--color-topbar-border-h);
  color: #fff;
  box-shadow:
    0 4px 14px rgba(0, 0, 0, 0.35),
    inset 0 1px 0 rgba(255, 255, 255, 0.18);
}

/* Olho (toggle visibilidade senha) */
.eye-btn {
  position: absolute;
  right: 12px;
  top: 50%;
  transform: translateY(-50%);
  background: none;
  border: none;
  cursor: pointer;
  color: rgba(255, 255, 255, 0.28);
  padding: 0;
  display: flex;
  align-items: center;
  transition: color var(--transition-base);
  line-height: 0;
}

.eye-btn:hover { color: rgba(255, 255, 255, 0.60); }

/* ══════════════════════════════════════════════════════════════════
   FORMULÁRIOS
══════════════════════════════════════════════════════════════════ */

.form-section { margin-top: 18px; }

.field { margin-bottom: 13px; }

.field-label-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 6px;
}

.field-label {
  font-size: var(--font-size-sm);
  color: var(--color-text-label);
  font-weight: 500;
}

.field-req { color: #ef4444; }
.field-opt {
  color: rgba(255, 255, 255, 0.22);
  font-size: var(--font-size-xs);
  font-weight: 400;
}

.input-wrap { position: relative; }

.field-input {
  width: 100%;
  padding: 10px 14px;
  background: var(--color-input-bg);
  border: 1px solid var(--color-input-border);
  border-top-color: rgba(255, 255, 255, 0.20);
  border-radius: var(--radius-md);
  color: var(--color-text-primary);
  font-size: var(--font-size-md);
  font-family: var(--font-primary);
  outline: none;
  backdrop-filter: blur(12px) saturate(1.3);
  -webkit-backdrop-filter: blur(12px) saturate(1.3);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.06), 0 2px 6px rgba(0, 0, 0, 0.20);
  transition:
    border-color var(--transition-base),
    background var(--transition-base),
    box-shadow var(--transition-base);
}

.field-input::placeholder { color: rgba(255, 255, 255, 0.18); }

.field-input:focus {
  border-color: var(--color-input-border-focus);
  border-top-color: rgba(77, 159, 255, 0.55);
  background: var(--color-input-bg-focus);
  box-shadow:
    0 0 0 3px var(--color-input-shadow-focus),
    inset 0 1px 0 rgba(255, 255, 255, 0.10);
}

.field-input.error {
  border-color: var(--color-input-border-error);
  box-shadow: 0 0 0 3px var(--color-input-shadow-error);
}

/* Padding extra para inputs com botão interno (olho) */
.field-input.has-icon { padding-right: 40px; }

.field-error {
  font-size: var(--font-size-xs);
  color: var(--color-error);
  margin-top: 4px;
  min-height: 16px; /* evita layout shift */
}

/* ── Checkbox (liquid glass custom) ───────────────────────────── */

.check-row {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  margin-bottom: 6px;
}

/* Oculta o checkbox nativo e substitui por visual glass */
.check-row input[type="checkbox"] {
  -webkit-appearance: none;
  appearance: none;
  width: 18px;
  height: 18px;
  min-width: 18px;
  border: 1px solid rgba(255, 255, 255, 0.20);
  border-top-color: rgba(255, 255, 255, 0.32);
  border-radius: 5px;
  background: rgba(255, 255, 255, 0.07);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  box-shadow:
    0 2px 8px rgba(0, 0, 0, 0.30),
    inset 0 1px 0 rgba(255, 255, 255, 0.10);
  cursor: pointer;
  flex-shrink: 0;
  margin-top: 1px;
  position: relative;
  transition:
    background var(--transition-base),
    border-color var(--transition-base),
    box-shadow var(--transition-base);
}

.check-row input[type="checkbox"]:hover {
  background: rgba(255, 255, 255, 0.12);
  border-color: rgba(255, 255, 255, 0.30);
  box-shadow:
    0 2px 10px rgba(0, 0, 0, 0.35),
    inset 0 1px 0 rgba(255, 255, 255, 0.14);
}

/* Estado marcado — glass azul com checkmark */
.check-row input[type="checkbox"]:checked {
  background: rgba(37, 99, 235, 0.65);
  border-color: rgba(99, 163, 255, 0.60);
  border-top-color: rgba(147, 197, 253, 0.75);
  box-shadow:
    0 2px 14px rgba(37, 99, 235, 0.45),
    inset 0 1px 0 rgba(255, 255, 255, 0.25);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
}

/* Checkmark via pseudo-elemento */
.check-row input[type="checkbox"]:checked::after {
  content: '';
  position: absolute;
  left: 5px;
  top: 2px;
  width: 6px;
  height: 10px;
  border: 2px solid rgba(255, 255, 255, 0.95);
  border-top: none;
  border-left: none;
  transform: rotate(44deg);
}

/* Foco acessível */
.check-row input[type="checkbox"]:focus-visible {
  outline: 2px solid rgba(77, 159, 255, 0.65);
  outline-offset: 2px;
}

.check-label {
  font-size: var(--font-size-sm);
  color: rgba(255, 255, 255, 0.38);
  line-height: 1.5;
  cursor: pointer;
}

.check-link { color: var(--color-link); }

/* ══════════════════════════════════════════════════════════════════
   ERROR BANNER
══════════════════════════════════════════════════════════════════ */

.auth-error {
  display: none;
  background: var(--color-error-bg);
  border: 1px solid var(--color-error-border);
  border-radius: var(--radius-md);
  padding: 10px 14px;
  font-size: 12.5px;
  color: #fca5a5;
  margin-bottom: 14px;
  line-height: 1.5;
}

.auth-error.visible { display: block; }

/* ══════════════════════════════════════════════════════════════════
   LANGUAGE SELECTOR
══════════════════════════════════════════════════════════════════ */

.lang-chevron {
  font-style: normal;
  font-size: 9px;
  opacity: 0.6;
  transition: transform var(--transition-base);
  display: inline-block;
}

.btn-lang.open .lang-chevron { transform: rotate(180deg); }

.lang-wrap { position: relative; }

.lang-dropdown {
  position: absolute;
  top: calc(100% + 8px);
  right: 0;
  background: var(--color-dropdown-bg);
  border: 1px solid var(--color-dropdown-border);
  border-top-color: rgba(255, 255, 255, 0.24);
  border-radius: var(--radius-xl);
  overflow: hidden;
  min-width: 178px;
  backdrop-filter: blur(24px) saturate(1.6);
  -webkit-backdrop-filter: blur(24px) saturate(1.6);
  box-shadow:
    0 8px 32px rgba(0, 0, 0, 0.55),
    0 2px 8px rgba(0, 0, 0, 0.3),
    inset 0 1px 0 rgba(255, 255, 255, 0.14);
  opacity: 0;
  transform: translateY(-6px) scale(0.97);
  pointer-events: none;
  transition:
    opacity 0.18s ease,
    transform 0.18s ease;
  transform-origin: top right;
  z-index: var(--z-dropdown);
}

.lang-dropdown.open {
  opacity: 1;
  transform: translateY(0) scale(1);
  pointer-events: auto;
}

.lang-opt {
  display: flex;
  align-items: center;
  gap: 11px;
  padding: 11px 16px;
  cursor: pointer;
  font-size: var(--font-size-base);
  font-family: var(--font-primary);
  color: rgba(220, 228, 245, 0.78);
  transition:
    background var(--transition-fast),
    color var(--transition-fast);
  border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

.lang-opt:last-child { border-bottom: none; }
.lang-opt:hover { background: var(--color-dropdown-opt-h); color: #fff; }
.lang-opt.active { color: #fff; background: var(--color-dropdown-active); }
.lang-opt.active .lang-check { opacity: 1; }

.lang-flag { font-size: 18px; line-height: 1; flex-shrink: 0; }
.lang-info  { flex: 1; }
.lang-name  { font-weight: 600; font-size: var(--font-size-base); line-height: 1.2; }
.lang-sub   { font-size: var(--font-size-xs); opacity: 0.45; margin-top: 1px; }
.lang-check { margin-left: auto; font-size: var(--font-size-sm); color: var(--color-link); opacity: 0; transition: opacity var(--transition-fast); }

/* ══════════════════════════════════════════════════════════════════
   RESPONSIVIDADE
══════════════════════════════════════════════════════════════════ */

@media (max-width: 480px) {
  .card {
    padding: 28px 22px 26px;
    border-radius: 16px;
  }

  .card-title { font-size: var(--font-size-xl); }
}