/* Clean, Minimalist & Modern Light Theme for BITSANDBYTEDUDE */

:root {
  /* Colorful Claymorphism Palette */
  --bg-main: #f0f4f9;
  --card-bg: #eef2f8;

  /* Left Sidebar Clay Dark Navy Theme */
  --sidebar-dark-bg: linear-gradient(165deg, #0e172a 0%, #1e293b 100%);
  --primary-blue: #3b82f6;
  --primary-cyan: #06b6d4;
  --accent-purple: #8b5cf6;
  --accent-pink: #ec4899;
  --accent-amber: #f59e0b;
  --accent-emerald: #10b981;

  --accent-gradient: linear-gradient(135deg, #6366f1 0%, #a855f7 50%, #ec4899 100%);
  --clay-card-shadow: 16px 16px 32px #cbd5e1, -16px -16px 32px #ffffff, inset 2px 2px 4px rgba(255, 255, 255, 0.9), inset -2px -2px 4px rgba(148, 163, 184, 0.2);
  --clay-input-shadow: inset 5px 5px 10px #d1d5db, inset -5px -5px 10px #ffffff;
  --clay-input-focus: inset 3px 3px 6px #cbd5e1, inset -3px -3px 6px #ffffff, 0 0 0 3px rgba(99, 102, 241, 0.3);

  --text-main: #1e293b;
  --text-muted: #475569;
  --text-dim: #94a3b8;

  --sidebar-text: #f8fafc;
  --sidebar-muted: #94a3b8;
  --sidebar-border: rgba(255, 255, 255, 0.08);

  --border-color: #e2e8f0;
  --border-focus: #6366f1;
  --border-hover: #cbd5e1;

  --input-bg: #f8fafc;
  --error-color: #ef4444;
  --success-color: #10b981;

  --radius-lg: 32px;
  --radius-md: 20px;
  --radius-sm: 14px;

  --transition-fast: 0.3s cubic-bezier(0.34, 1.56, 0.64, 1);
  --font-family: 'Plus Jakarta Sans', system-ui, -apple-system, sans-serif;
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

body {
  font-family: var(--font-family);
  background: linear-gradient(135deg, #c7d2fe 0%, #fbcfe8 35%, #e0e7ff 70%, #f3e8ff 100%);
  background-size: 300% 300%;
  animation: bodyGradientAnim 14s ease infinite alternate;
  color: var(--text-main);
  min-height: 100vh;
  display: flex;
  justify-content: center;
  align-items: center;
  position: relative;
  overflow-x: hidden;
  padding: 32px 16px;
}

@keyframes bodyGradientAnim {
  0% {
    background-position: 0% 50%;
  }

  50% {
    background-position: 100% 50%;
  }

  100% {
    background-position: 50% 100%;
  }
}

/* Subtle Animated Ambient Decor */
.background-decor {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 0;
  overflow: hidden;
}

.glow-orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(80px);
  opacity: 0.6;
  animation: floatOrb 10s ease-in-out infinite alternate;
}

.orb-1 {
  width: 550px;
  height: 550px;
  background: radial-gradient(circle, #a855f7, #6366f1);
  top: -150px;
  left: -150px;
}

.orb-2 {
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, #ec4899, #f43f5e);
  bottom: -200px;
  right: -200px;
  animation-delay: -5s;
}

@keyframes floatOrb {
  0% {
    transform: translate(0, 0) scale(1);
  }

  50% {
    transform: translate(40px, 30px) scale(1.1);
  }

  100% {
    transform: translate(-30px, 50px) scale(0.95);
  }
}

.grid-pattern {
  position: absolute;
  inset: 0;
  background-image: radial-gradient(rgba(99, 102, 241, 0.08) 1.5px, transparent 1.5px);
  background-size: 32px 32px;
}

/* Page Container */
.page-container {
  width: 100%;
  max-width: 1260px;
  position: relative;
  z-index: 1;
  margin: auto;
}

/* Main Reservation Card with Claymorphism 3D effect */
.reservation-card {
  display: grid;
  grid-template-columns: 450px 1fr;
  background: #f1f5f9;
  border: 4px solid #ffffff;
  border-radius: var(--radius-lg);
  box-shadow: 20px 20px 60px #cbd5e1, -20px -20px 60px #ffffff, inset 2px 2px 5px rgba(255, 255, 255, 1);
  overflow: hidden;
  min-height: 840px;
  transition: transform 0.4s ease, box-shadow 0.4s ease;
}

.reservation-card:hover {
  transform: translateY(-4px);
  box-shadow: 24px 24px 70px #94a3b8, -24px -24px 70px #ffffff, inset 3px 3px 6px rgba(255, 255, 255, 1);
}

/* ==========================================================================
   LEFT SIDEBAR: CLAYMORPHISM DARK GRADIENT
   ========================================================================== */
.brand-sidebar {
  background: linear-gradient(160deg, #0f172a 0%, #1e1b4b 100%);
  padding: 44px 38px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  border-right: 1px solid rgba(255, 255, 255, 0.1);
  position: relative;
  gap: 30px;
  overflow: hidden;
  color: var(--sidebar-text);
  box-shadow: inset -10px 0 20px rgba(0, 0, 0, 0.2);
}

/* Animated Ambient Gradient Line at top */
.brand-sidebar::before {
  content: "";
  position: absolute;
  top: 0;
  left: -100%;
  width: 200%;
  height: 5px;
  background: linear-gradient(90deg, #ec4899, #8b5cf6, #3b82f6, #06b6d4, #ec4899);
  animation: shimmerLine 3s linear infinite;
}

@keyframes shimmerLine {
  0% {
    transform: translateX(0);
  }

  100% {
    transform: translateX(50%);
  }
}

/* Floating Light Orbs inside Sidebar */
.brand-sidebar::after {
  content: "";
  position: absolute;
  width: 250px;
  height: 250px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(236, 72, 153, 0.25), transparent 70%);
  top: -50px;
  right: -50px;
  pointer-events: none;
  animation: pulseOrb 6s ease-in-out infinite alternate;
}

@keyframes pulseOrb {
  0% {
    transform: scale(1) translate(0, 0);
    opacity: 0.5;
  }

  100% {
    transform: scale(1.3) translate(-20px, 20px);
    opacity: 0.9;
  }
}

/* Logo & Floating Animation */
.brand-header {
  display: flex;
  align-items: center;
  gap: 16px;
  position: relative;
  z-index: 2;
}

.logo-wrapper {
  width: 64px;
  height: 64px;
  border-radius: 20px;
  padding: 3px;
  background: var(--accent-gradient);
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 6px 6px 15px rgba(0, 0, 0, 0.4), inset 2px 2px 4px rgba(255, 255, 255, 0.6);
  flex-shrink: 0;
  animation: floatLogo 4s ease-in-out infinite alternate;
}

@keyframes floatLogo {
  0% {
    transform: translateY(0px) rotate(0deg);
  }

  100% {
    transform: translateY(-8px) rotate(3deg);
  }
}

.brand-logo-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  border-radius: 17px;
  background: #0f172a;
}

.brand-title {
  display: flex;
  flex-direction: column;
}

.brand-name {
  font-size: 20px;
  font-weight: 800;
  letter-spacing: 0.3px;
  background: linear-gradient(135deg, #ffffff 0%, #e6dcb0 50%, #86ccb5 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.brand-tagline {
  font-size: 11px;
  font-weight: 700;
  color: #c084fc;
  text-transform: uppercase;
  letter-spacing: 1.5px;
  margin-top: 2px;
}

/* Sidebar Hero Section & Animated Badge */
.sidebar-hero {
  position: relative;
  z-index: 2;
}

.badge-pill {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(236, 72, 153, 0.15);
  border: 1px solid rgba(236, 72, 153, 0.35);
  color: #f472b6;
  padding: 7px 16px;
  border-radius: 99px;
  font-size: 11px;
  font-weight: 800;
  letter-spacing: 0.8px;
  margin-bottom: 16px;
  box-shadow: 4px 4px 10px rgba(0, 0, 0, 0.2), inset 1px 1px 2px rgba(255, 255, 255, 0.3);
  animation: pulseBadge 3s infinite alternate;
}

@keyframes pulseBadge {
  0% {
    transform: scale(1);
    box-shadow: 4px 4px 10px rgba(0, 0, 0, 0.2);
  }

  100% {
    transform: scale(1.04);
    box-shadow: 6px 6px 18px rgba(236, 72, 153, 0.4);
  }
}

.sidebar-hero h1 {
  font-size: 30px;
  line-height: 1.2;
  font-weight: 800;
  letter-spacing: -0.6px;
  color: #ffffff;
  margin-bottom: 12px;
}

.sidebar-hero h1 span {
  background: linear-gradient(135deg, #38bdf8 0%, #c084fc 50%, #f472b6 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.sidebar-desc {
  font-size: 13.5px;
  line-height: 1.65;
  color: var(--sidebar-muted);
}

/* Claymorphism Cards inside Sidebar */
.info-blocks {
  display: flex;
  flex-direction: column;
  gap: 18px;
  position: relative;
  z-index: 2;
}

.info-card {
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: var(--radius-md);
  padding: 22px;
  box-shadow: 8px 8px 20px rgba(0, 0, 0, 0.3), inset 1px 1px 3px rgba(255, 255, 255, 0.2);
  transition: all 0.35s cubic-bezier(0.34, 1.56, 0.64, 1);
  position: relative;
  overflow: hidden;
}

.info-card:hover {
  background: rgba(255, 255, 255, 0.09);
  border-color: rgba(236, 72, 153, 0.4);
  transform: translateY(-6px) scale(1.02);
  box-shadow: 12px 12px 30px rgba(0, 0, 0, 0.4), inset 2px 2px 4px rgba(255, 255, 255, 0.3);
}

.info-card-header {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 10px;
}

.info-icon {
  width: 42px;
  height: 42px;
  border-radius: 14px;
  background: linear-gradient(135deg, #06b6d4 0%, #3b82f6 100%);
  color: #ffffff;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  box-shadow: 4px 4px 10px rgba(0, 0, 0, 0.3), inset 1px 1px 2px rgba(255, 255, 255, 0.5);
  transition: transform 0.3s ease;
}

.info-card:hover .info-icon {
  transform: scale(1.15) rotate(-6deg);
}

.creator-icon {
  background: linear-gradient(135deg, #ec4899 0%, #8b5cf6 100%);
}

.info-card h3 {
  font-size: 15px;
  font-weight: 700;
  color: #ffffff;
}

.instructor-sub {
  font-size: 11px;
  color: #38bdf8;
  font-weight: 600;
  display: block;
}

.info-card p {
  font-size: 12.5px;
  line-height: 1.6;
  color: var(--sidebar-muted);
}

.info-card p strong {
  color: #ffffff;
}

/* Sidebar Social Links & Buttons (White Text & Icons) */
.social-links {
  display: flex;
  flex-direction: column;
  gap: 10px;
  margin-top: 16px;
  padding-top: 14px;
  border-top: 1px solid rgba(255, 255, 255, 0.12);
}

.social-btn {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 11px 16px;
  border-radius: var(--radius-sm);
  text-decoration: none;
  font-size: 12.5px;
  font-weight: 700;
  color: #ffffff !important;
  transition: all 0.3s cubic-bezier(0.34, 1.56, 0.64, 1);
  position: relative;
  overflow: hidden;
  box-shadow: 4px 4px 10px rgba(0, 0, 0, 0.3), inset 1px 1px 2px rgba(255, 255, 255, 0.2);
}

.social-btn svg {
  color: #ffffff !important;
  fill: currentColor;
  transition: transform 0.3s ease;
}

.portfolio-btn {
  background: linear-gradient(135deg, rgba(99, 102, 241, 0.4) 0%, rgba(168, 85, 247, 0.4) 100%);
  border: 1px solid rgba(255, 255, 255, 0.3);
}

.portfolio-btn:hover {
  background: linear-gradient(135deg, #6366f1 0%, #a855f7 100%);
  border-color: #ffffff;
  transform: translateX(6px);
  box-shadow: 6px 6px 18px rgba(168, 85, 247, 0.4);
}

.github-btn {
  background: rgba(15, 23, 42, 0.7);
  border: 1px solid rgba(255, 255, 255, 0.2);
}

.github-btn:hover {
  background: rgba(30, 41, 59, 0.9);
  border-color: #ffffff;
  transform: translateX(6px);
  box-shadow: 6px 6px 18px rgba(0, 0, 0, 0.4);
}

.email-btn {
  background: rgba(56, 189, 248, 0.2);
  border: 1px solid rgba(255, 255, 255, 0.25);
}

.email-btn:hover {
  background: rgba(56, 189, 248, 0.4);
  border-color: #ffffff;
  transform: translateX(6px);
  box-shadow: 6px 6px 18px rgba(56, 189, 248, 0.3);
}

.social-btn:hover svg:last-child {
  transform: translateX(4px);
}

/* Tech Stack Badges (White Text) */
.tech-stack-section {
  padding-top: 6px;
  position: relative;
  z-index: 2;
}

.tech-title {
  display: block;
  font-size: 10.5px;
  font-weight: 800;
  letter-spacing: 1.2px;
  color: #cbd5e1;
  margin-bottom: 10px;
}

.tech-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.tag {
  font-size: 11px;
  font-weight: 700;
  color: #ffffff;
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.15);
  padding: 6px 12px;
  border-radius: 8px;
  transition: all 0.25s ease;
  box-shadow: 2px 2px 6px rgba(0, 0, 0, 0.2);
}

.tag:hover {
  color: #ffffff;
  border-color: #ffffff;
  background: rgba(236, 72, 153, 0.4);
  transform: translateY(-2px);
  box-shadow: 4px 4px 12px rgba(236, 72, 153, 0.3);
}

/* ==========================================================================
   RIGHT SIDE: COLORFUL CLAYMORPHISM FORM
   ========================================================================== */
.form-main {
  padding: 44px 48px;
  display: flex;
  flex-direction: column;
  justify-content: flex-start;
  background: linear-gradient(145deg, #f8fafc 0%, #edf2f7 100%);
  position: relative;
}

/* Form Top Header */
.form-header-bar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 16px 20px;
  background: #ffffff;
  border-radius: var(--radius-md);
  box-shadow: 8px 8px 20px #d1d5db, -8px -8px 20px #ffffff, inset 1px 1px 2px rgba(255, 255, 255, 0.8);
  margin-bottom: 28px;
}

.brand-mini {
  display: flex;
  align-items: center;
  gap: 12px;
}

.mini-logo {
  width: 42px;
  height: 42px;
  border-radius: 12px;
  box-shadow: 3px 3px 8px #cbd5e1, -3px -3px 8px #ffffff;
}

.mini-title {
  font-size: 14px;
  font-weight: 800;
  display: block;
  background: linear-gradient(135deg, #059669 0%, #d97706 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.mini-sub {
  font-size: 11px;
  color: var(--text-muted);
  display: block;
}

.status-badge {
  display: flex;
  align-items: center;
  gap: 8px;
  background: #ecfdf5;
  border: 2px solid #a7f3d0;
  color: #047857;
  padding: 6px 14px;
  border-radius: 99px;
  font-size: 11px;
  font-weight: 800;
  box-shadow: 4px 4px 10px #d1d5db, -4px -4px 10px #ffffff, inset 1px 1px 2px #ffffff;
}

.status-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background-color: #10b981;
  box-shadow: 0 0 8px rgba(16, 185, 129, 0.8);
  animation: pulseDot 2s infinite;
}

@keyframes pulseDot {
  0% {
    transform: scale(1);
    opacity: 1;
  }

  50% {
    transform: scale(1.4);
    opacity: 0.6;
  }

  100% {
    transform: scale(1);
    opacity: 1;
  }
}

/* Form Intro */
.form-intro {
  margin-bottom: 28px;
}

.form-intro h2 {
  font-size: 28px;
  font-weight: 800;
  letter-spacing: -0.5px;
  background: linear-gradient(135deg, #1e293b 0%, #4f46e5 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  margin-bottom: 6px;
}

.form-intro p {
  font-size: 14px;
  color: var(--text-muted);
}

/* Claymorphism Form Sections (Vibrant Colors & Soft 3D Insets) */
.form-section {
  background: #f1f5f9;
  border-radius: var(--radius-md);
  padding: 26px;
  margin-bottom: 24px;
  box-shadow: 12px 12px 25px #cbd5e1, -12px -12px 25px #ffffff, inset 2px 2px 4px rgba(255, 255, 255, 0.9);
  transition: all 0.35s ease;
  position: relative;
}

.form-section:hover {
  transform: translateY(-3px);
  box-shadow: 14px 14px 30px #bbf7d0, -14px -14px 30px #ffffff, inset 2px 2px 4px rgba(255, 255, 255, 0.9);
}

.section-header {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  margin-bottom: 22px;
}

.sec-num {
  width: 36px;
  height: 36px;
  border-radius: 12px;
  background: var(--accent-gradient);
  color: #ffffff;
  font-size: 14px;
  font-weight: 800;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  box-shadow: 4px 4px 10px rgba(99, 102, 241, 0.3), inset 1px 1px 2px rgba(255, 255, 255, 0.5);
}

.section-header h3 {
  font-size: 16px;
  font-weight: 800;
  color: var(--text-main);
}

.section-header p {
  font-size: 12px;
  color: var(--text-muted);
  margin-top: 2px;
}

/* Grid & Fields */
.form-grid {
  display: grid;
  gap: 20px;
}

.form-grid.two-col {
  grid-template-columns: 1fr 1fr;
}

.form-field {
  display: flex;
  flex-direction: column;
}

.form-field.full-width {
  grid-column: 1 / -1;
}

.form-field label {
  font-size: 12.5px;
  font-weight: 800;
  color: #334155;
  margin-bottom: 8px;
}

.required {
  color: var(--error-color);
}

/* Input Wrappers & Claymorphism Controls (Inset 3D Effect) */
.input-wrapper {
  position: relative;
  display: flex;
  align-items: center;
}

.field-icon {
  position: absolute;
  left: 16px;
  color: #64748b;
  pointer-events: none;
  transition: var(--transition-fast);
}

.form-field input,
.form-field select,
.form-field textarea {
  width: 100%;
  background: #e2e8f0;
  border: 2px solid transparent;
  border-radius: var(--radius-sm);
  padding: 14px 16px 14px 44px;
  color: var(--text-main);
  font-family: inherit;
  font-size: 13.5px;
  font-weight: 600;
  outline: none;
  box-shadow: inset 4px 4px 8px #cbd5e1, inset -4px -4px 8px #ffffff;
  transition: all 0.3s cubic-bezier(0.34, 1.56, 0.64, 1);
}

.form-field select {
  appearance: none;
  -webkit-appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 24 24' fill='none' stroke='%234f46e5' stroke-width='2.5'%3E%3Cpolyline points='6 9 12 15 18 9'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 16px center;
  padding-right: 42px;
  cursor: pointer;
}

.form-field select option {
  background-color: #ffffff;
  color: var(--text-main);
  padding: 12px;
}

.text-area-wrapper {
  flex-direction: column;
}

.form-field textarea {
  padding: 16px;
  min-height: 110px;
  resize: vertical;
  line-height: 1.6;
}

.char-counter {
  align-self: flex-end;
  font-size: 11px;
  color: var(--text-dim);
  margin-top: 6px;
  font-weight: 700;
}

/* Animated Claymorphism Focus & Error States */
.form-field input:focus,
.form-field select:focus,
.form-field textarea:focus {
  background: #ffffff;
  border-color: #8b5cf6;
  box-shadow: inset 2px 2px 4px #cbd5e1, inset -2px -2px 4px #ffffff, 0 0 0 4px rgba(139, 92, 246, 0.25);
  transform: translateY(-2px);
}

.form-field input:focus+.field-icon,
.input-wrapper:focus-within .field-icon {
  color: #8b5cf6;
  transform: scale(1.15);
}

.form-field.invalid input,
.form-field.invalid select,
.form-field.invalid textarea {
  border-color: var(--error-color);
  box-shadow: inset 3px 3px 6px #fca5a5, inset -3px -3px 6px #ffffff, 0 0 0 4px rgba(239, 68, 68, 0.2);
}

.error-msg {
  font-size: 11.5px;
  color: var(--error-color);
  margin-top: 6px;
  min-height: 16px;
  font-weight: 700;
}

/* Clay Checkbox */
.checkbox-container {
  margin-top: 10px;
}

.custom-checkbox {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  cursor: pointer;
  position: relative;
  user-select: none;
}

.custom-checkbox input {
  position: absolute;
  opacity: 0;
  cursor: pointer;
  height: 0;
  width: 0;
}

.checkmark {
  width: 22px;
  height: 22px;
  background: #e2e8f0;
  border-radius: 8px;
  flex-shrink: 0;
  margin-top: 2px;
  box-shadow: inset 3px 3px 6px #cbd5e1, inset -3px -3px 6px #ffffff;
  transition: all 0.3s cubic-bezier(0.34, 1.56, 0.64, 1);
  position: relative;
}

.custom-checkbox:hover input~.checkmark {
  transform: scale(1.08);
}

.custom-checkbox input:checked~.checkmark {
  background: var(--accent-gradient);
  box-shadow: 4px 4px 10px rgba(99, 102, 241, 0.4), inset 1px 1px 2px rgba(255, 255, 255, 0.6);
}

.checkmark::after {
  content: "";
  position: absolute;
  display: none;
  left: 7px;
  top: 4px;
  width: 5px;
  height: 10px;
  border: solid #ffffff;
  border-width: 0 2.5px 2.5px 0;
  transform: rotate(45deg);
}

.custom-checkbox input:checked~.checkmark::after {
  display: block;
}

.checkbox-label {
  font-size: 12.5px;
  line-height: 1.6;
  color: var(--text-muted);
}

.checkbox-label strong {
  color: var(--text-main);
}

/* Colorful 3D Clay Submit Button */
.submit-btn {
  width: 100%;
  background: linear-gradient(135deg, #6366f1 0%, #8b5cf6 50%, #ec4899 100%);
  border: 2px solid #ffffff;
  border-radius: var(--radius-sm);
  padding: 18px 28px;
  color: #ffffff;
  font-family: inherit;
  font-size: 15px;
  font-weight: 800;
  cursor: pointer;
  transition: all 0.35s cubic-bezier(0.34, 1.56, 0.64, 1);
  box-shadow: 8px 8px 20px #cbd5e1, -8px -8px 20px #ffffff, inset 2px 2px 4px rgba(255, 255, 255, 0.6);
  margin-top: 10px;
}

.btn-content {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
}

.submit-btn:hover {
  transform: translateY(-4px) scale(1.02);
  box-shadow: 12px 12px 30px rgba(99, 102, 241, 0.4), inset 3px 3px 6px rgba(255, 255, 255, 0.8);
}

.submit-btn:active {
  transform: translateY(1px) scale(0.99);
  box-shadow: inset 4px 4px 10px rgba(0, 0, 0, 0.3);
}

.btn-content {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
}

.submit-btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 14px 30px rgba(2, 132, 199, 0.35);
}

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

.form-footer-note {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  font-size: 11.5px;
  color: var(--text-dim);
  margin-top: 16px;
  text-align: center;
}

/* ==========================================================================
   SUCCESS BOX
   ========================================================================== */
.success-box {
  text-align: center;
  padding: 50px 20px;
  animation: fadeIn 0.4s ease;
}

@keyframes fadeIn {
  from {
    opacity: 0;
    transform: scale(0.97);
  }

  to {
    opacity: 1;
    transform: scale(1);
  }
}

.success-header {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  margin-bottom: 24px;
}

.success-logo {
  width: 44px;
  height: 44px;
  border-radius: 12px;
  border: 1px solid var(--border-color);
}

.brand-tag {
  font-size: 16px;
  font-weight: 800;
  color: var(--primary-blue);
}

.success-icon-wrapper {
  width: 72px;
  height: 72px;
  border-radius: 50%;
  background: #ecfdf5;
  color: #10b981;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 20px;
  box-shadow: 0 0 24px rgba(16, 185, 129, 0.2);
}

.success-box h2 {
  font-size: 28px;
  font-weight: 800;
  color: var(--text-main);
  margin-bottom: 12px;
}

.success-msg {
  font-size: 14px;
  line-height: 1.6;
  color: var(--text-muted);
  max-width: 460px;
  margin: 0 auto 28px;
}

.success-details {
  background: #f8fafc;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 20px;
  max-width: 480px;
  margin: 0 auto 28px;
  text-align: left;
}

.summary-row {
  display: flex;
  justify-content: space-between;
  font-size: 13px;
  padding: 8px 0;
  border-bottom: 1px solid var(--border-color);
}

.summary-row:last-child {
  border-bottom: none;
}

.summary-label {
  color: var(--text-dim);
}

.summary-val {
  color: var(--text-main);
  font-weight: 600;
}

.secondary-btn {
  background: #ffffff;
  border: 1px solid var(--border-color);
  color: var(--text-main);
  padding: 12px 24px;
  border-radius: var(--radius-sm);
  font-family: inherit;
  font-size: 13px;
  font-weight: 700;
  cursor: pointer;
  transition: var(--transition-fast);
}

.secondary-btn:hover {
  border-color: var(--primary-blue);
  color: var(--primary-blue);
  background: #f0f9ff;
}

[hidden] {
  display: none !important;
}

/* ==========================================================================
   RESPONSIVE DESIGN
   ========================================================================== */

@media (max-width: 1120px) {
  .reservation-card {
    grid-template-columns: 380px 1fr;
  }

  .brand-sidebar {
    padding: 34px 28px;
  }

  .form-main {
    padding: 34px 32px;
  }
}

@media (max-width: 920px) {
  .reservation-card {
    grid-template-columns: 1fr;
    border-radius: var(--radius-md);
  }

  .brand-sidebar {
    border-right: none;
    border-bottom: 1px solid var(--border-color);
    padding: 36px 28px;
  }

  .form-main {
    padding: 36px 28px;
  }

  .form-grid.two-col {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 640px) {
  body {
    padding: 12px 8px;
  }

  .reservation-card {
    border-radius: 16px;
  }

  .brand-sidebar {
    padding: 24px 18px;
    gap: 24px;
  }

  .sidebar-hero h1 {
    font-size: 24px;
  }

  .form-main {
    padding: 24px 18px;
  }

  .form-grid.two-col {
    grid-template-columns: 1fr;
  }

  .form-header-bar {
    flex-direction: column;
    align-items: flex-start;
    gap: 12px;
  }

  .status-badge {
    align-self: flex-start;
  }

  .form-intro h2 {
    font-size: 22px;
  }

  .form-section {
    padding: 18px 14px;
  }

  .social-btn {
    font-size: 11.5px;
  }

  .submit-btn {
    padding: 14px 18px;
    font-size: 13px;
  }
}

/* ==========================================================================
   TASK 2: COURSE DETAILS & FEE STRUCTURE CARD + MODAL STYLES
   ========================================================================== */

/* Header Actions */
.header-actions {
  display: flex;
  align-items: center;
  gap: 12px;
}

.course-modal-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: linear-gradient(135deg, #ec4899 0%, #8b5cf6 50%, #3b82f6 100%);
  background-size: 200% 200%;
  border: 2px solid #ffffff;
  color: #ffffff;
  padding: 10px 18px;
  border-radius: 99px;
  font-family: inherit;
  font-size: 12.5px;
  font-weight: 800;
  cursor: pointer;
  box-shadow: 0 0 0 0 rgba(236, 72, 153, 0.6), 6px 6px 16px rgba(139, 92, 246, 0.4), inset 2px 2px 4px rgba(255, 255, 255, 0.7);
  animation: attractPulse 2.5s infinite ease-in-out, gradientShift 4s infinite alternate;
  position: relative;
  overflow: hidden;
}

@keyframes attractPulse {
  0% {
    transform: scale(1);
    box-shadow: 0 0 0 0 rgba(236, 72, 153, 0.6), 4px 4px 12px rgba(139, 92, 246, 0.4);
  }

  50% {
    transform: scale(1.06);
    box-shadow: 0 0 0 12px rgba(236, 72, 153, 0), 8px 8px 24px rgba(236, 72, 153, 0.6);
  }

  100% {
    transform: scale(1);
    box-shadow: 0 0 0 0 rgba(236, 72, 153, 0), 4px 4px 12px rgba(139, 92, 246, 0.4);
  }
}

@keyframes gradientShift {
  0% {
    background-position: 0% 50%;
  }

  100% {
    background-position: 100% 50%;
  }
}

.course-modal-btn::after {
  content: "";
  position: absolute;
  top: -50%;
  left: -50%;
  width: 200%;
  height: 200%;
  background: linear-gradient(60deg, transparent, rgba(255, 255, 255, 0.4), transparent);
  transform: rotate(30deg) translateY(-100%);
  animation: lightSweep 3s infinite ease-in-out;
}

@keyframes lightSweep {
  0% {
    transform: rotate(30deg) translateY(-100%);
  }

  20% {
    transform: rotate(30deg) translateY(100%);
  }

  100% {
    transform: rotate(30deg) translateY(100%);
  }
}

.course-modal-btn:hover {
  transform: translateY(-3px) scale(1.08) !important;
  box-shadow: 0 0 25px rgba(236, 72, 153, 0.7), inset 2px 2px 5px rgba(255, 255, 255, 0.9) !important;
}

/* Sidebar Fee Card Styles */
.course-fee-card {
  background: linear-gradient(135deg, rgba(56, 189, 248, 0.12) 0%, rgba(2, 132, 199, 0.08) 100%) !important;
  border: 1px solid rgba(56, 189, 248, 0.3) !important;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
}

.fee-icon {
  background: rgba(56, 189, 248, 0.25) !important;
  color: #38bdf8 !important;
}

.course-stats-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
  margin: 12px 0 14px 0;
}

.stat-pill {
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.1);
  padding: 10px;
  border-radius: var(--radius-sm);
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
}

.stat-pill.highlight-fee {
  background: rgba(56, 189, 248, 0.15);
  border-color: rgba(56, 189, 248, 0.4);
}

.stat-label {
  font-size: 10px;
  color: var(--sidebar-muted);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  font-weight: 700;
}

.stat-value {
  font-size: 15px;
  font-weight: 800;
  color: #ffffff;
  margin-top: 2px;
}

.highlight-fee .stat-value {
  color: #38bdf8;
}

.fee-highlights {
  display: flex;
  flex-direction: column;
  gap: 6px;
  border-top: 1px dashed rgba(255, 255, 255, 0.12);
  padding-top: 10px;
}

.fee-item {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 11.5px;
  color: #e2e8f0;
}

.fee-item svg {
  color: #38bdf8;
  flex-shrink: 0;
}

/* Modal Overlay & Dialog */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(7, 17, 36, 0.75);
  backdrop-filter: blur(8px);
  z-index: 999;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
  animation: modalFadeIn 0.3s cubic-bezier(0.16, 1, 0.3, 1);
}

@keyframes modalFadeIn {
  from {
    opacity: 0;
    transform: scale(0.95);
  }

  to {
    opacity: 1;
    transform: scale(1);
  }
}

.modal-card {
  background: #ffffff;
  border-radius: var(--radius-lg);
  width: 100%;
  max-width: 680px;
  max-height: 90vh;
  overflow-y: auto;
  box-shadow: 0 30px 80px rgba(0, 0, 0, 0.35);
  position: relative;
  border: 1px solid var(--border-color);
  display: flex;
  flex-direction: column;
}

.modal-close {
  position: absolute;
  top: 20px;
  right: 20px;
  background: #f1f5f9;
  border: none;
  width: 36px;
  height: 36px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #64748b;
  cursor: pointer;
  transition: var(--transition-fast);
}

.modal-close:hover {
  background: #e2e8f0;
  color: #0f172a;
}

.modal-header {
  padding: 28px 32px 20px 32px;
  border-bottom: 1px solid var(--border-color);
  display: flex;
  align-items: center;
  gap: 16px;
}

.modal-icon {
  width: 48px;
  height: 48px;
  border-radius: 14px;
  background: var(--accent-gradient);
  color: #ffffff;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  box-shadow: 0 8px 20px rgba(2, 132, 199, 0.3);
}

.modal-header h2 {
  font-size: 20px;
  font-weight: 800;
  color: var(--text-main);
}

.modal-header p {
  font-size: 12.5px;
  color: var(--text-muted);
  margin-top: 2px;
}

.modal-body {
  padding: 28px 32px;
  display: flex;
  flex-direction: column;
  gap: 24px;
}

.modal-stats-row {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 14px;
}

.modal-stat-box {
  background: #f8fafc;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 16px;
  text-align: center;
  display: flex;
  flex-direction: column;
}

.modal-stat-box.highlight-box {
  background: #f0f9ff;
  border-color: #bae6fd;
}

.mstat-title {
  font-size: 11px;
  font-weight: 700;
  color: var(--text-muted);
  text-transform: uppercase;
}

.mstat-val {
  font-size: 20px;
  font-weight: 800;
  color: var(--text-main);
  margin: 4px 0 2px 0;
}

.highlight-box .mstat-val {
  color: var(--primary-blue);
}

.mstat-sub {
  font-size: 11px;
  color: var(--text-dim);
}

.modal-section-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
}

.modal-block h3 {
  font-size: 13.5px;
  font-weight: 700;
  color: var(--text-main);
  margin-bottom: 12px;
  display: flex;
  align-items: center;
  gap: 8px;
}

.modal-block h3 svg {
  color: var(--primary-blue);
}

.modal-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.modal-list li {
  font-size: 12px;
  line-height: 1.5;
  color: var(--text-muted);
  padding-left: 14px;
  position: relative;
}

.modal-list li::before {
  content: "•";
  color: var(--primary-blue);
  font-size: 16px;
  position: absolute;
  left: 0;
  top: -2px;
}

.fee-card-mini {
  background: #f8fafc;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  padding: 14px;
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin-bottom: 14px;
}

.fee-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 12.5px;
}

.discount-badge {
  background: #dcfce7;
  color: #15803d;
  font-weight: 700;
  padding: 2px 8px;
  border-radius: 4px;
  font-size: 11.5px;
}

.modal-perks {
  display: flex;
  flex-direction: column;
  gap: 6px;
  font-size: 11.5px;
  color: #047857;
  font-weight: 600;
}

.modal-footer {
  padding: 20px 32px 28px 32px;
  border-top: 1px solid var(--border-color);
  background: #f8fafc;
  border-bottom-left-radius: var(--radius-lg);
  border-bottom-right-radius: var(--radius-lg);
}

.modal-reserve-btn {
  margin-top: 0;
}

@media (max-width: 640px) {

  .modal-header,
  .modal-body,
  .modal-footer {
    padding: 20px 18px;
  }

  .modal-stats-row {
    grid-template-columns: 1fr;
  }

  .modal-section-grid {
    grid-template-columns: 1fr;
  }
}