/* ==========================================================================
   ExamSetu Nepal - Interactive Studio Lamp & Auth Animation
   Inspired by Code with Bhurtel Desk Lamp & Web Audio API
   ========================================================================== */

:root {
  --lamp-bg-dark: #090c10;
  --lamp-bg-light: #161c24;
  --lamp-gold: #e5a93c;
  --lamp-gold-light: #ffd277;
  --lamp-cord: #c4b5a0;
  --lamp-card-bg: rgba(18, 24, 33, 0.88);
  --lamp-card-border: rgba(255, 255, 255, 0.08);
  --lamp-glow-color: rgba(255, 222, 130, 0.38);
}

/* Stage Container */
/* Stage Container (Full-Width Desktop Layout) */
.lamp-stage-wrapper {
  position: relative;
  min-height: calc(100vh - var(--header-height, 70px) - 50px);
  width: 100%;
  max-width: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 48px clamp(20px, 4vw, 72px);
  background: radial-gradient(circle at 35% 45%, #18202c 0%, #0c1017 60%, #06080b 100%);
  overflow: hidden;
  transition: background 0.6s cubic-bezier(0.4, 0, 0.2, 1);
  border-radius: 24px;
  margin: 10px auto 40px;
  box-shadow: inset 0 0 120px rgba(0, 0, 0, 0.7);
}

/* Lamp OFF State - Deep Midnight Ambience */
.lamp-stage-wrapper.lamp-off {
  background: radial-gradient(circle at 35% 45%, #0d1218 0%, #06080b 70%, #030405 100%);
}

/* Ambient Dust / Starlight specks */
.lamp-particles {
  position: absolute;
  inset: 0;
  pointer-events: none;
  background-image: 
    radial-gradient(1.5px 1.5px at 20px 30px, rgba(255,255,255,0.25), transparent),
    radial-gradient(1px 1px at 80px 140px, rgba(255,255,255,0.18), transparent),
    radial-gradient(1.5px 1.5px at 190px 80px, rgba(255,255,255,0.2), transparent),
    radial-gradient(2px 2px at 320px 260px, rgba(255,230,160,0.22), transparent),
    radial-gradient(1px 1px at 450px 180px, rgba(255,255,255,0.15), transparent),
    radial-gradient(1.5px 1.5px at 620px 90px, rgba(255,255,255,0.2), transparent),
    radial-gradient(2px 2px at 780px 320px, rgba(255,230,160,0.18), transparent);
  background-size: 550px 550px;
  opacity: 0.6;
  transition: opacity 0.6s ease;
}

.lamp-stage-wrapper.lamp-off .lamp-particles {
  opacity: 0.25;
}

/* Main Flex Layout: Desktop Studio Stage */
.lamp-scene {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: space-evenly;
  gap: clamp(40px, 5vw, 90px);
  width: 100%;
  max-width: 1440px;
  z-index: 2;
}

/* ==========================================================================
   DESK LAMP SECTION
   ========================================================================== */
.lamp-container {
  position: relative;
  width: 320px;
  height: 480px;
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  user-select: none;
}

.lamp-svg {
  width: 100%;
  height: 100%;
  overflow: visible;
  filter: drop-shadow(0 20px 25px rgba(0, 0, 0, 0.6));
}

/* Light Cone Projector */
.lamp-light-beam {
  position: absolute;
  top: 140px;
  left: 200px;
  width: 650px;
  height: 480px;
  pointer-events: none;
  z-index: 1;
  transform-origin: top left;
  background: conic-gradient(
    from 115deg at 0% 0%,
    rgba(255, 235, 170, 0.32) 0deg,
    rgba(255, 225, 140, 0.16) 28deg,
    rgba(255, 215, 120, 0.05) 55deg,
    transparent 65deg
  );
  filter: blur(28px);
  opacity: 1;
  transition: opacity 0.45s cubic-bezier(0.4, 0, 0.2, 1);
  mix-blend-mode: screen;
}

.lamp-stage-wrapper.lamp-off .lamp-light-beam {
  opacity: 0;
}

/* Bulb Glow */
.bulb-glow-circle {
  transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
  transform-origin: center;
}

.lamp-stage-wrapper:not(.lamp-off) .bulb-glow-circle {
  fill: #fff7d6;
  filter: drop-shadow(0 0 18px #ffcf54) drop-shadow(0 0 40px #ffb326);
}

.lamp-stage-wrapper.lamp-off .bulb-glow-circle {
  fill: #3b2816;
  filter: none;
  opacity: 0.4;
}

/* Interactive Cord Switch */
.lamp-cord-group {
  cursor: pointer;
  transform-origin: 218px 200px;
  transition: transform 0.18s cubic-bezier(0.2, 0.8, 0.4, 1);
}

.lamp-cord-group:hover .cord-handle {
  filter: drop-shadow(0 0 8px #ffc107);
}

.lamp-cord-group.pulling {
  transform: translateY(28px) scaleY(1.35);
  animation: none !important;
}

.lamp-cord-group.spring-back {
  animation: cordBounce 0.65s cubic-bezier(0.36, 0.07, 0.19, 0.97) both;
}

@keyframes cordBounce {
  0% { transform: translateY(28px) scaleY(1.35); }
  25% { transform: translateY(-10px) scaleY(0.92); }
  50% { transform: translateY(8px) scaleY(1.08); }
  75% { transform: translateY(-3px) scaleY(0.98); }
  100% { transform: translateY(0px) scaleY(1); }
}

/* Cord Tooltip hint */
.cord-hint {
  position: absolute;
  top: 310px;
  left: 200px;
  background: rgba(15, 23, 42, 0.85);
  color: #fbbf24;
  border: 1px solid rgba(251, 191, 36, 0.3);
  backdrop-filter: blur(8px);
  padding: 4px 10px;
  border-radius: 20px;
  font-size: 0.75rem;
  font-weight: 600;
  display: flex;
  align-items: center;
  gap: 5px;
  pointer-events: none;
  animation: floatHint 2.4s ease-in-out infinite;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.4);
  white-space: nowrap;
  z-index: 4;
}

@keyframes floatHint {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-5px); }
}

/* Sound and Controls floating panel */
.stage-controls {
  position: absolute;
  top: 16px;
  right: 18px;
  display: flex;
  align-items: center;
  gap: 10px;
  z-index: 10;
}

.stage-btn {
  background: rgba(30, 41, 59, 0.7);
  border: 1px solid rgba(255, 255, 255, 0.12);
  color: #cbd5e1;
  padding: 6px 12px;
  border-radius: 999px;
  font-size: 0.8rem;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  cursor: pointer;
  backdrop-filter: blur(10px);
  transition: all 0.2s ease;
}

.stage-btn:hover {
  background: rgba(51, 65, 85, 0.9);
  color: #fff;
  border-color: rgba(255, 255, 255, 0.25);
  transform: translateY(-1px);
}

.stage-btn.active {
  color: #fbbf24;
  border-color: rgba(251, 191, 36, 0.4);
}

/* ==========================================================================
   AUTHENTICATION CARD (Code with Bhurtel / Studio Style)
   ========================================================================== */
.lamp-auth-card {
  position: relative;
  width: 100%;
  max-width: 580px;
  background: var(--lamp-card-bg);
  border: 1px solid var(--lamp-card-border);
  border-radius: 26px;
  padding: 42px 38px 36px;
  box-shadow: 
    0 25px 50px -12px rgba(0, 0, 0, 0.6),
    0 0 0 1px rgba(255, 255, 255, 0.05);
  backdrop-filter: blur(24px) saturate(160%);
  -webkit-backdrop-filter: blur(24px) saturate(160%);
  transition: all 0.5s cubic-bezier(0.4, 0, 0.2, 1);
  z-index: 3;
}

/* Illuminated highlight when lamp is ON */
.lamp-stage-wrapper:not(.lamp-off) .lamp-auth-card {
  border-color: rgba(255, 225, 140, 0.28);
  box-shadow: 
    -12px -10px 45px -5px rgba(255, 215, 120, 0.16),
    0 30px 60px -12px rgba(0, 0, 0, 0.75),
    inset 1px 1px 1px rgba(255, 245, 210, 0.35);
}

.lamp-stage-wrapper.lamp-off .lamp-auth-card {
  border-color: rgba(255, 255, 255, 0.05);
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.75);
}

/* Card Header: "YOUR SPACE" */
.card-header-badge {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 14px;
}

.space-tag {
  font-size: 0.74rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: #94a3b8;
  display: flex;
  align-items: center;
  gap: 6px;
}

.space-star {
  color: #fbbf24;
  font-size: 0.85rem;
}

/* Card Title */
.card-auth-title {
  font-size: 2.1rem;
  font-weight: 700;
  font-family: 'Outfit', 'Inter', -apple-system, sans-serif;
  color: #f8fafc;
  letter-spacing: -0.02em;
  margin: 0 0 6px;
  line-height: 1.2;
}

.card-auth-subtitle {
  color: #94a3b8;
  font-size: 0.88rem;
  margin: 0 0 22px;
}

/* Tab Switcher: [ Sign In ] [ Sign Up ] */
.auth-tab-switcher {
  position: relative;
  display: flex;
  background: rgba(15, 23, 42, 0.75);
  border: 1px solid rgba(255, 255, 255, 0.07);
  border-radius: 12px;
  padding: 4px;
  margin-bottom: 24px;
}

.tab-btn {
  flex: 1;
  background: transparent;
  border: none;
  color: #94a3b8;
  padding: 8px 14px;
  font-size: 0.88rem;
  font-weight: 600;
  border-radius: 9px;
  cursor: pointer;
  transition: all 0.25s ease;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  z-index: 1;
}

.tab-btn:hover {
  color: #f1f5f9;
}

.tab-btn.active {
  background: rgba(255, 255, 255, 0.1);
  color: #ffffff;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.3);
}

.lamp-stage-wrapper:not(.lamp-off) .tab-btn.active {
  background: rgba(255, 255, 255, 0.15);
  color: #fff;
  border: 1px solid rgba(255, 225, 140, 0.25);
}

/* Form Fields */
.lamp-form-group {
  margin-bottom: 18px;
}

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

.lamp-field-label {
  font-size: 0.82rem;
  font-weight: 600;
  color: #cbd5e1;
}

.lamp-forgot-link {
  font-size: 0.78rem;
  color: #94a3b8;
  text-decoration: none;
  transition: color 0.2s ease;
}

.lamp-forgot-link:hover {
  color: #fbbf24;
  text-decoration: underline;
}

/* Input Container with Icons */
.lamp-input-wrap {
  position: relative;
  display: flex;
  align-items: center;
}

.lamp-input-icon {
  position: absolute;
  left: 14px;
  color: #64748b;
  font-size: 1.1rem;
  pointer-events: none;
  transition: color 0.2s ease;
}

.lamp-input {
  width: 100%;
  background: rgba(15, 23, 42, 0.65);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 12px;
  padding: 12px 14px 12px 42px;
  color: #f8fafc;
  font-size: 0.92rem;
  outline: none;
  transition: all 0.25s ease;
}

.lamp-input::placeholder {
  color: #64748b;
}

.lamp-input:focus {
  background: rgba(15, 23, 42, 0.9);
  border-color: #38bdf8;
  box-shadow: 0 0 0 3px rgba(56, 189, 248, 0.18);
}

.lamp-input:focus ~ .lamp-input-icon {
  color: #38bdf8;
}

.lamp-stage-wrapper:not(.lamp-off) .lamp-input:focus {
  border-color: #f59e0b;
  box-shadow: 0 0 0 3px rgba(245, 158, 11, 0.2);
}

.lamp-stage-wrapper:not(.lamp-off) .lamp-input:focus ~ .lamp-input-icon {
  color: #f59e0b;
}

/* Password Eye Toggle */
.password-toggle-btn {
  position: absolute;
  right: 12px;
  background: transparent;
  border: none;
  color: #64748b;
  font-size: 1.1rem;
  cursor: pointer;
  padding: 4px;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: color 0.2s ease;
}

.password-toggle-btn:hover {
  color: #e2e8f0;
}

/* Remember Me Checkbox */
.remember-row {
  display: flex;
  align-items: center;
  gap: 8px;
  margin: 14px 0 20px;
  user-select: none;
}

.remember-label {
  font-size: 0.82rem;
  color: #94a3b8;
  cursor: pointer;
}

.custom-checkbox {
  appearance: none;
  width: 17px;
  height: 17px;
  border: 1.5px solid rgba(255, 255, 255, 0.2);
  border-radius: 5px;
  background: rgba(15, 23, 42, 0.6);
  cursor: pointer;
  display: grid;
  place-content: center;
  transition: all 0.2s ease;
}

.custom-checkbox:checked {
  background: #3b82f6;
  border-color: #3b82f6;
}

.custom-checkbox:checked::before {
  content: "✓";
  color: #fff;
  font-size: 11px;
  font-weight: 800;
}

/* Primary Action Submit Button */
.lamp-submit-btn {
  width: 100%;
  padding: 13px 20px;
  background: linear-gradient(135deg, #1e293b 0%, #334155 100%);
  border: 1px solid rgba(255, 255, 255, 0.15);
  border-radius: 12px;
  color: #ffffff;
  font-size: 0.96rem;
  font-weight: 600;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  cursor: pointer;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.35);
}

.lamp-stage-wrapper:not(.lamp-off) .lamp-submit-btn {
  background: linear-gradient(135deg, #2563eb 0%, #3b82f6 100%);
  border-color: rgba(255, 255, 255, 0.25);
  box-shadow: 0 6px 20px rgba(37, 99, 235, 0.4);
}

.lamp-submit-btn:hover {
  transform: translateY(-2px);
  filter: brightness(1.1);
}

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

/* "OR CONTINUE WITH" Divider */
.or-divider {
  display: flex;
  align-items: center;
  text-align: center;
  margin: 22px 0 18px;
  color: #64748b;
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.or-divider::before,
.or-divider::after {
  content: '';
  flex: 1;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.or-divider span {
  padding: 0 12px;
}

/* Social & 1-Click Buttons */
.social-btn-group {
  display: flex;
  gap: 12px;
  justify-content: center;
  margin-bottom: 18px;
}

.social-btn {
  flex: 1;
  height: 44px;
  background: rgba(15, 23, 42, 0.7);
  border: 1px solid rgba(255, 255, 255, 0.09);
  border-radius: 12px;
  color: #e2e8f0;
  font-size: 1.15rem;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: all 0.2s ease;
}

.social-btn:hover {
  background: rgba(30, 41, 59, 0.95);
  border-color: rgba(255, 255, 255, 0.2);
  color: #fff;
  transform: translateY(-2px);
}

/* 1-Click Fast Evaluation Logins */
.quick-demo-container {
  background: rgba(15, 23, 42, 0.5);
  border: 1px dashed rgba(255, 255, 255, 0.12);
  border-radius: 12px;
  padding: 12px 14px;
  margin-top: 10px;
}

.quick-demo-title {
  font-size: 0.76rem;
  color: #cbd5e1;
  font-weight: 600;
  display: flex;
  align-items: center;
  gap: 6px;
  margin-bottom: 8px;
}

.quick-demo-btns {
  display: flex;
  gap: 8px;
}

.demo-pill-btn {
  flex: 1;
  background: rgba(30, 41, 59, 0.8);
  border: 1px solid rgba(255, 255, 255, 0.08);
  color: #94a3b8;
  font-size: 0.76rem;
  font-weight: 600;
  padding: 6px 10px;
  border-radius: 8px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 5px;
  transition: all 0.2s ease;
}

.demo-pill-btn:hover {
  background: rgba(51, 65, 85, 0.95);
  color: #fff;
  border-color: #3b82f6;
}

/* ==========================================================================
   RESPONSIVE DESIGN (Adaptive Layout)
   ========================================================================== */
@media (max-width: 900px) {
  .lamp-scene {
    flex-direction: column;
    gap: 10px;
  }

  .lamp-container {
    width: 260px;
    height: 280px;
    margin-bottom: -30px;
  }

  .lamp-light-beam {
    top: 90px;
    left: 130px;
    width: 380px;
    height: 380px;
    transform: rotate(20deg);
  }

  .cord-hint {
    top: 180px;
    left: 170px;
  }

  .lamp-auth-card {
    max-width: 520px;
    width: 100%;
  }
}

/* Widescreen Desktop Monitors (1200px+) */
@media (min-width: 1200px) {
  .lamp-container {
    width: 360px;
    height: 520px;
  }
  .lamp-light-beam {
    top: 150px;
    left: 220px;
    width: 780px;
    height: 560px;
  }
  .lamp-auth-card {
    max-width: 620px;
    padding: 46px 42px 38px;
  }
}

@media (max-width: 480px) {
  .lamp-stage-wrapper {
    padding: 24px 16px;
    border-radius: 16px;
  }

  .lamp-auth-card {
    padding: 26px 20px;
    border-radius: 20px;
    max-width: 100%;
  }

  .card-auth-title {
    font-size: 1.75rem;
  }
}