/**
 * EAE University - Gate System Styles
 * Forest & Gold Authentication UI
 * "숲의 문을 여는 황금 열쇠"
 */

/* Gate Button - Golden Key */
.gate-button {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  padding: 20px 40px;
  background: transparent;
  border: 2px solid rgba(245, 197, 66, 0.3);
  border-radius: 16px;
  cursor: pointer;
  overflow: hidden;
  transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

.gate-button-bg {
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(26, 77, 46, 0.3), rgba(245, 197, 66, 0.1));
  opacity: 0;
  transition: opacity 0.4s ease;
}

.gate-button:hover .gate-button-bg {
  opacity: 1;
}

.gate-button:hover {
  border-color: var(--color-accent-500);
  transform: translateY(-3px);
  box-shadow:
    0 10px 40px rgba(245, 197, 66, 0.2),
    0 0 0 1px rgba(245, 197, 66, 0.1) inset;
}

.gate-button-content {
  position: relative;
  display: flex;
  align-items: center;
  gap: 14px;
  z-index: 1;
}

.fingerprint-icon {
  width: 36px;
  height: 36px;
  color: var(--color-accent-500);
  transition: all 0.4s ease;
  filter: drop-shadow(0 0 8px rgba(245, 197, 66, 0.3));
}

.gate-button:hover .fingerprint-icon {
  color: var(--color-accent-400);
  transform: scale(1.15);
  filter: drop-shadow(0 0 12px rgba(245, 197, 66, 0.5));
}

.gate-button.scanning .fingerprint-icon {
  animation: goldPulse 1.5s infinite;
}

.gate-button-text {
  font-size: 13px;
  font-weight: 600;
  color: var(--color-accent-400);
  letter-spacing: 2px;
  text-transform: uppercase;
}

/* Scan Line Animation - Gold */
.scan-line {
  position: absolute;
  left: 0;
  right: 0;
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--color-accent-500), transparent);
  opacity: 0;
  transform: translateY(-20px);
}

.gate-button.scanning .scan-line {
  opacity: 1;
  animation: scan 2s infinite;
}

@keyframes scan {
  0% {
    top: 0;
    opacity: 0;
  }
  10% {
    opacity: 1;
  }
  90% {
    opacity: 1;
  }
  100% {
    top: 100%;
    opacity: 0;
  }
}

@keyframes goldPulse {
  0%, 100% {
    opacity: 1;
    filter: drop-shadow(0 0 8px rgba(245, 197, 66, 0.3));
  }
  50% {
    opacity: 0.7;
    filter: drop-shadow(0 0 20px rgba(245, 197, 66, 0.6));
  }
}

/* Gate Modal - Forest Chamber */
.gate-modal {
  position: fixed;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(8, 12, 8, 0.95);
  backdrop-filter: blur(12px);
  z-index: 1000;
  opacity: 0;
  visibility: hidden;
  transition: all 0.4s ease;
}

.gate-modal.active {
  opacity: 1;
  visibility: visible;
}

.gate-modal-content {
  width: 100%;
  max-width: 420px;
  margin: 20px;
  padding: 48px 40px;
  background: linear-gradient(180deg, #0f1a12 0%, #080c08 100%);
  border: 1px solid rgba(245, 197, 66, 0.2);
  border-radius: 24px;
  transform: translateY(30px) scale(0.95);
  transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
  box-shadow:
    0 25px 80px rgba(0, 0, 0, 0.5),
    0 0 0 1px rgba(245, 197, 66, 0.05) inset;
}

.gate-modal.active .gate-modal-content {
  transform: translateY(0) scale(1);
}

.gate-modal.success .gate-modal-content {
  border-color: var(--color-success);
  box-shadow:
    0 25px 80px rgba(0, 0, 0, 0.5),
    0 0 60px rgba(34, 197, 94, 0.2);
}

/* Gate Header */
.gate-header {
  text-align: center;
  margin-bottom: 36px;
}

.gate-icon {
  width: 72px;
  height: 72px;
  margin: 0 auto 20px;
  padding: 18px;
  background: linear-gradient(135deg, rgba(245, 197, 66, 0.15), rgba(26, 77, 46, 0.2));
  border-radius: 50%;
  color: var(--color-accent-500);
  border: 1px solid rgba(245, 197, 66, 0.2);
}

.gate-modal.success .gate-icon {
  background: linear-gradient(135deg, rgba(34, 197, 94, 0.15), rgba(26, 77, 46, 0.2));
  color: var(--color-success);
  border-color: rgba(34, 197, 94, 0.3);
}

.gate-header h3 {
  font-size: 22px;
  font-weight: 700;
  color: var(--text-primary);
  margin: 0 0 10px;
  letter-spacing: -0.02em;
}

.gate-subtitle {
  font-size: 14px;
  color: var(--text-secondary);
  margin: 0;
}

/* Gate Input - Gold Accent */
.gate-input-container {
  position: relative;
  margin-bottom: 28px;
}

.gate-input {
  width: 100%;
  padding: 18px 24px;
  background: rgba(15, 22, 16, 0.9);
  border: 2px solid rgba(245, 197, 66, 0.2);
  border-radius: 14px;
  font-size: 20px;
  font-family: 'JetBrains Mono', monospace;
  color: var(--color-accent-400);
  text-align: center;
  letter-spacing: 10px;
  transition: all 0.3s ease;
}

.gate-input:focus {
  outline: none;
  border-color: var(--color-accent-500);
  box-shadow:
    0 0 0 4px rgba(245, 197, 66, 0.1),
    0 0 30px rgba(245, 197, 66, 0.1);
}

.gate-input.error {
  border-color: var(--color-error);
  animation: shake 0.5s ease;
}

.gate-input::placeholder {
  letter-spacing: normal;
  color: var(--text-tertiary);
  font-size: 14px;
}

.gate-input-line {
  position: absolute;
  bottom: 2px;
  left: 50%;
  width: 0;
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--color-accent-500), transparent);
  transform: translateX(-50%);
  transition: width 0.4s ease;
  border-radius: 2px;
}

.gate-input:focus ~ .gate-input-line {
  width: calc(100% - 48px);
}

@keyframes shake {
  0%, 100% { transform: translateX(0); }
  20%, 60% { transform: translateX(-10px); }
  40%, 80% { transform: translateX(10px); }
}

/* Gate Error */
.gate-error {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  margin-bottom: 24px;
  padding: 14px;
  background: rgba(220, 38, 38, 0.1);
  border: 1px solid rgba(220, 38, 38, 0.2);
  border-radius: 10px;
  color: var(--color-error);
  font-size: 14px;
  font-weight: 500;
}

/* Gate Actions */
.gate-actions {
  display: flex;
  gap: 14px;
}

.gate-actions button {
  flex: 1;
  padding: 16px 28px;
  border-radius: 12px;
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.3s ease;
  letter-spacing: 0.02em;
}

.gate-cancel {
  background: transparent;
  border: 1px solid rgba(168, 160, 138, 0.25);
  color: var(--text-secondary);
}

.gate-cancel:hover {
  background: rgba(168, 160, 138, 0.1);
  border-color: rgba(168, 160, 138, 0.4);
  color: var(--text-primary);
}

.gate-submit {
  background: linear-gradient(135deg, var(--color-accent-600), var(--color-accent-700));
  border: none;
  color: var(--bg-primary);
  font-weight: 700;
}

.gate-submit:hover {
  transform: translateY(-2px);
  box-shadow:
    0 8px 30px rgba(245, 197, 66, 0.35),
    0 0 0 1px rgba(245, 197, 66, 0.2);
}

.gate-submit:disabled {
  opacity: 0.5;
  cursor: not-allowed;
  transform: none;
  box-shadow: none;
}

/* Gate Section (for page footer) */
.gate-section {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 20px;
  padding: 80px 20px;
  background: linear-gradient(180deg, transparent 0%, rgba(26, 77, 46, 0.08) 50%, rgba(245, 197, 66, 0.03) 100%);
  border-top: 1px solid rgba(245, 197, 66, 0.1);
  position: relative;
}

.gate-section::before {
  content: '';
  position: absolute;
  top: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 200px;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--color-accent-500), transparent);
}

.gate-section-label {
  font-size: 11px;
  color: var(--text-tertiary);
  text-transform: uppercase;
  letter-spacing: 3px;
  font-weight: 500;
}

/* Responsive */
@media (max-width: 480px) {
  .gate-modal-content {
    padding: 36px 24px;
    margin: 16px;
  }

  .gate-input {
    font-size: 18px;
    letter-spacing: 8px;
    padding: 16px 20px;
  }

  .gate-actions {
    flex-direction: column-reverse;
  }

  .gate-button {
    padding: 16px 32px;
  }
}