/* Kasper AI Auth — professional branded experience */
:root {
  --kasper-ink: #083D3B;
  --kasper-ink-soft: #647280;
  --kasper-paper: #F4F7F6;
  --kasper-panel: #062E2C;
  --kasper-accent: #10B981;
  --kasper-accent-strong: #059669;
  --kasper-line: rgba(8, 61, 59, 0.12);
  --kasper-danger: #be123c;
  --kasper-font: "Cairo", "Segoe UI", Tahoma, sans-serif;
  --kasper-display: "Cairo", "Segoe UI", Tahoma, sans-serif;
}

* { box-sizing: border-box; }

.auth-body {
  margin: 0;
  min-height: 100vh;
  font-family: var(--kasper-font);
  color: var(--kasper-ink);
  background: var(--kasper-paper);
  -webkit-font-smoothing: antialiased;
}

.auth-shell {
  min-height: 100vh;
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(0, 0.95fr);
  animation: auth-in 0.5s ease-out;
}

@keyframes auth-in {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.auth-brand-panel {
  position: relative;
  overflow: hidden;
  background:
    radial-gradient(680px 420px at 15% 10%, rgba(16, 185, 129, 0.28), transparent 55%),
    radial-gradient(520px 360px at 90% 85%, rgba(5, 150, 105, 0.22), transparent 50%),
    linear-gradient(165deg, #0A3A37 0%, #062E2C 48%, #083D3B 100%);
  color: #f4faf7;
  display: flex;
  align-items: center;
  padding: clamp(2rem, 5vw, 4.5rem);
}

.auth-brand-panel::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='120' height='120' viewBox='0 0 120 120'%3E%3Cpath fill='none' stroke='rgba(255,255,255,0.045)' stroke-width='1' d='M0 60h120M60 0v120M20 0l80 120M100 0L20 120'/%3E%3C/svg%3E");
  pointer-events: none;
  animation: pattern-move 60s linear infinite;
}

@keyframes pattern-move {
  from { background-position: 0 0; }
  to { background-position: 120px 120px; }
}

.auth-brand-panel__inner {
  position: relative;
  z-index: 1;
  max-width: 28rem;
  animation: fade-in-up 0.6s ease-out 0.2s both;
}

@keyframes fade-in-up {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.auth-brand-logo {
  width: min(100%, 280px);
  height: auto;
  display: block;
  margin-bottom: 1.75rem;
  filter: drop-shadow(0 12px 28px rgba(0, 0, 0, 0.28));
}

.auth-brand-mark-row {
  display: flex;
  align-items: center;
  gap: 0.9rem;
  margin-bottom: 1.5rem;
  animation: float 3s ease-in-out infinite;
}

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

.auth-brand-mark-row img {
  width: 72px;
  height: 72px;
  display: block;
  object-fit: contain;
  filter: drop-shadow(0 10px 22px rgba(0, 0, 0, 0.35));
}

.auth-brand-wordmark {
  margin: 0;
  font-size: clamp(1.8rem, 3.2vw, 2.35rem);
  font-weight: 800;
  letter-spacing: 0.01em;
  line-height: 1;
}

.auth-brand-wordmark span { color: #34D399; }

.auth-brand-tagline {
  margin: 0 0 1.35rem;
  color: rgba(244, 250, 247, 0.72);
  font-size: 1.02rem;
  font-weight: 600;
}

.auth-brand-headline {
  margin: 0 0 0.85rem;
  font-family: var(--kasper-display);
  font-size: clamp(1.45rem, 2.6vw, 1.95rem);
  font-weight: 700;
  line-height: 1.35;
}

.auth-brand-copy {
  margin: 0;
  max-width: 36ch;
  color: rgba(244, 250, 247, 0.78);
  font-size: 1rem;
  line-height: 1.7;
}

.auth-main {
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: clamp(1.5rem, 4vw, 3rem);
  background:
    radial-gradient(700px 320px at 100% 0%, rgba(16, 185, 129, 0.08), transparent 55%),
    var(--kasper-paper);
}

.auth-main__top {
  display: flex;
  justify-content: flex-end;
  margin-bottom: 1rem;
  animation: fade-in 0.5s ease-out 0.3s both;
}

@keyframes fade-in {
  from { opacity: 0; }
  to { opacity: 1; }
}

.auth-locale {
  display: inline-flex;
  padding: 0.18rem;
  border: 1px solid var(--kasper-line);
  border-radius: 10px;
  background: #fff;
  gap: 0.15rem;
  box-shadow: 0 2px 8px rgba(8, 61, 59, 0.06);
}

.auth-locale__btn {
  border: 0;
  background: transparent;
  color: var(--kasper-ink-soft);
  font: inherit;
  font-size: 0.82rem;
  font-weight: 700;
  padding: 0.32rem 0.7rem;
  border-radius: 8px;
  cursor: pointer;
  transition: all 0.2s ease;
}

.auth-locale__btn.is-active,
.auth-locale__btn:hover {
  background: var(--kasper-ink);
  color: #fff;
  transform: scale(1.05);
}

.auth-card {
  width: min(100%, 420px);
  margin-inline: auto;
  background: #fff;
  border: 1px solid var(--kasper-line);
  border-radius: 20px;
  box-shadow: 0 20px 60px rgba(8, 61, 59, 0.12);
  padding: 2.25rem 2rem;
  animation: card-in 0.6s ease-out 0.4s both;
}

/* Register needs a bit more width for plan cards */
.auth-card:has(#registerForm) {
  width: min(100%, 480px);
}

@keyframes card-in {
  from {
    opacity: 0;
    transform: translateY(20px) scale(0.98);
  }
  to {
    opacity: 1;
    transform: translateY(0) scale(1);
  }
}

.auth-card-logo {
  display: none;
  width: 44px;
  height: 44px;
  margin-bottom: 1rem;
}

.auth-card h1 {
  margin: 0 0 0.35rem;
  font-size: 1.6rem;
  font-weight: 800;
  color: var(--kasper-ink);
  letter-spacing: -0.01em;
}

.auth-card p.lead {
  margin: 0 0 1.5rem;
  color: var(--kasper-ink-soft);
  line-height: 1.6;
}

.auth-form {
  display: grid;
  gap: 1.25rem;
}

.auth-field { margin-bottom: 0; }

.auth-card .form-label,
.auth-field label {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-weight: 600;
  color: var(--kasper-ink);
  margin-bottom: 0.4rem;
  font-size: 0.9rem;
}

.auth-field__icon {
  width: 18px;
  height: 18px;
  color: var(--kasper-accent);
}

.auth-card .form-control,
.auth-field input {
  width: 100%;
  border-radius: 12px;
  border: 1.5px solid var(--kasper-line);
  padding: 0.85rem 1rem;
  font: inherit;
  background: #fff;
  transition: all 0.2s ease;
}

.auth-field input:focus {
  outline: none;
  border-color: var(--kasper-accent);
  box-shadow: 0 0 0 4px rgba(16, 185, 129, 0.15);
  transform: translateY(-1px);
}

.auth-field input::placeholder {
  color: var(--kasper-ink-soft);
  opacity: 0.6;
}

.auth-field--remember {
  margin-top: 0.5rem;
}

.auth-checkbox {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  cursor: pointer;
  user-select: none;
}

.auth-checkbox__input {
  position: absolute;
  opacity: 0;
  width: 0;
  height: 0;
}

.auth-checkbox__box {
  width: 20px;
  height: 20px;
  border: 2px solid var(--kasper-line);
  border-radius: 6px;
  background: #fff;
  display: grid;
  place-items: center;
  transition: all 0.2s ease;
  flex-shrink: 0;
}

.auth-checkbox__input:checked + .auth-checkbox__box {
  background: var(--kasper-accent);
  border-color: var(--kasper-accent);
}

.auth-checkbox__input:checked + .auth-checkbox__box::after {
  content: "";
  width: 10px;
  height: 6px;
  border: solid #fff;
  border-width: 0 0 2px 2px;
  transform: rotate(-45deg);
  margin-top: -2px;
}

.auth-checkbox__label {
  font-size: 0.9rem;
  color: var(--kasper-ink);
  font-weight: 500;
}

.auth-actions {
  margin-top: 0.5rem;
}

.auth-btn {
  width: 100%;
  background: linear-gradient(135deg, var(--kasper-accent) 0%, var(--kasper-accent-strong) 100%);
  border: none;
  color: #fff;
  font-weight: 700;
  border-radius: 12px;
  padding: 0.9rem 1.2rem;
  font: inherit;
  cursor: pointer;
  font-size: 1rem;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  transition: all 0.3s ease;
  box-shadow: 0 4px 14px rgba(16, 185, 129, 0.3);
  position: relative;
  overflow: hidden;
}

.auth-btn::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(255,255,255,0.2) 0%, transparent 50%);
  opacity: 0;
  transition: opacity 0.3s ease;
}

.auth-btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(16, 185, 129, 0.4);
}

.auth-btn:hover::before {
  opacity: 1;
}

.auth-btn:active {
  transform: translateY(0);
}

.auth-btn__icon {
  width: 20px;
  height: 20px;
  transition: transform 0.3s ease;
}

.auth-btn:hover .auth-btn__icon {
  transform: translateX(4px);
}

[dir="rtl"] .auth-btn:hover .auth-btn__icon {
  transform: translateX(-4px);
}

.auth-btn:disabled,
.auth-btn.is-loading {
  cursor: wait;
  opacity: 0.85;
  transform: none;
  box-shadow: 0 4px 14px rgba(16, 185, 129, 0.22);
  pointer-events: none;
}

.auth-btn__loading {
  display: inline-flex;
  align-items: center;
  gap: 0.55rem;
}

.auth-spinner {
  width: 1.05rem;
  height: 1.05rem;
  border: 2px solid rgba(255, 255, 255, 0.35);
  border-top-color: #fff;
  border-radius: 50%;
  animation: auth-spin 0.7s linear infinite;
}

@keyframes auth-spin {
  to { transform: rotate(360deg); }
}

.auth-section {
  display: grid;
  gap: 0.85rem;
  padding-bottom: 0.35rem;
  border-bottom: 1px solid var(--kasper-line);
  margin-bottom: 0.15rem;
}

.auth-section:last-of-type {
  border-bottom: 0;
  padding-bottom: 0;
}

.auth-section__title {
  margin: 0;
  font-size: 0.78rem;
  font-weight: 800;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--kasper-ink-soft);
}

.auth-optional {
  margin-inline-start: 0.35rem;
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--kasper-ink-soft);
  text-transform: none;
  letter-spacing: 0;
}

.auth-hint {
  display: block;
  margin-top: 0.35rem;
  font-size: 0.78rem;
  color: var(--kasper-ink-soft);
}

.auth-field-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.85rem;
}

@media (max-width: 520px) {
  .auth-field-row { grid-template-columns: 1fr; }
}

.auth-plans {
  display: grid;
  gap: 0.65rem;
}

.auth-plan {
  display: flex;
  gap: 0.75rem;
  align-items: flex-start;
  margin: 0;
  padding: 0.9rem 1rem;
  border: 1.5px solid var(--kasper-line);
  border-radius: 14px;
  background: #fff;
  cursor: pointer;
  transition: border-color 0.15s ease, background 0.15s ease, box-shadow 0.15s ease;
}

.auth-plan:hover {
  border-color: rgba(16, 185, 129, 0.45);
}

.auth-plan.is-selected {
  border-color: var(--kasper-accent);
  background: rgba(16, 185, 129, 0.06);
  box-shadow: 0 0 0 3px rgba(16, 185, 129, 0.12);
}

.auth-plan input[type="radio"] {
  width: 1.1rem;
  height: 1.1rem;
  margin-top: 0.2rem;
  flex: none;
  accent-color: var(--kasper-accent);
  cursor: pointer;
}

.auth-plan__body {
  flex: 1;
  min-width: 0;
  display: grid;
  gap: 0.35rem;
}

.auth-plan__top {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 0.75rem;
  flex-wrap: wrap;
}

.auth-plan__name {
  font-weight: 800;
  font-size: 0.98rem;
  color: var(--kasper-ink);
}

.auth-plan__price {
  font-weight: 700;
  font-size: 0.92rem;
  color: var(--kasper-ink);
  white-space: nowrap;
}

.auth-plan__badge {
  display: inline-flex;
  align-items: center;
  width: fit-content;
  border-radius: 999px;
  padding: 0.12rem 0.55rem;
  font-size: 0.72rem;
  font-weight: 700;
}

.auth-plan__badge--trial {
  background: #e8f7ef;
  color: #166534;
}

.auth-plan__badge--paid {
  background: #fff7e6;
  color: #92400e;
}

.auth-plan__meta {
  font-size: 0.8rem;
  color: var(--kasper-ink-soft);
  line-height: 1.45;
}

.auth-form .text-danger {
  display: block;
  margin-top: 0.3rem;
  font-size: 0.8rem;
  color: var(--kasper-danger);
}

.auth-alert {
  padding: 0.85rem 1rem;
  border-radius: 12px;
  background: rgba(190, 18, 60, 0.08);
  color: var(--kasper-danger);
  margin-bottom: 1.25rem;
  font-size: 0.9rem;
  display: flex;
  align-items: center;
  gap: 0.75rem;
  border: 1px solid rgba(190, 18, 60, 0.15);
  animation: shake 0.5s ease-in-out;
}

@keyframes shake {
  0%, 100% { transform: translateX(0); }
  25% { transform: translateX(-8px); }
  75% { transform: translateX(8px); }
}

.auth-alert__icon {
  width: 20px;
  height: 20px;
  flex-shrink: 0;
}

.auth-footer {
  margin-top: 1.75rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--kasper-line);
  text-align: center;
}

.auth-footer__text {
  margin: 0 0 0.5rem;
  color: var(--kasper-ink-soft);
  font-size: 0.9rem;
}

.auth-footer__link {
  color: var(--kasper-accent-strong);
  font-weight: 700;
  text-decoration: none;
  font-size: 0.95rem;
  transition: all 0.2s ease;
}

.auth-footer__link:hover {
  color: var(--kasper-ink);
  text-decoration: underline;
}

@media (max-width: 900px) {
  .auth-shell { grid-template-columns: 1fr; }
  .auth-brand-panel {
    min-height: auto;
    padding: 1.75rem 1.35rem;
  }
  .auth-brand-headline,
  .auth-brand-copy { display: none; }
  .auth-card-logo { display: block; }
  .auth-card {
    padding: 1.85rem 1.5rem;
  }
}