/* ========================================
   DESIGN TOKENS
   ======================================== */
:root {
  /* Colors */
  --bg-dark: #0a0e13;
  --bg-card: #111820;
  --bg-card-inner: #161e28;
  --bg-input: #1a2332;
  --bg-marquee: #0d1117;
  --border-subtle: #1e2a38;
  --border-card: #1c2835;
  --green-primary: #22c55e;
  --green-glow: #4ade80;
  --green-dark: #166534;
  --green-accent: #15803d;
  --text-white: #f8fafc;
  --text-gray: #94a3b8;
  --text-gray-light: #cbd5e1;
  --text-muted: #64748b;

  /* Typography */
  --font-heading: 'Outfit', sans-serif;
  --font-body: 'Inter', sans-serif;

  /* Spacing */
  --section-padding: 80px 0;
  --container-max: 1100px;
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 16px;
  --radius-xl: 20px;

  /* Transitions */
  --transition-fast: 0.2s ease;
  --transition-medium: 0.35s ease;
}

/* ========================================
   RESET & BASE
   ======================================== */
*,
*::before,
*::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: var(--font-body);
  background-color: var(--bg-dark);
  color: var(--text-white);
  line-height: 1.6;
  overflow-x: hidden;
}

img {
  max-width: 100%;
  display: block;
}

a {
  color: inherit;
  text-decoration: none;
}

.hide-mobile {
  display: inline;
}

/* ========================================
   UTILITY CLASSES
   ======================================== */
.text-green-glow {
  color: var(--green-primary);
  text-shadow: 0 0 20px rgba(34, 197, 94, 0.3);
}

.underline-green {
  text-decoration: underline;
  text-decoration-color: var(--green-primary);
  text-underline-offset: 4px;
  text-decoration-thickness: 2px;
}

/* ========================================
   FORM ELEMENTS
   ======================================== */
.form__input {
  width: 100%;
  padding: 14px 18px;
  background-color: var(--bg-input);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm);
  color: var(--text-white);
  font-family: var(--font-body);
  font-size: 0.925rem;
  outline: none;
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.form__input::placeholder {
  color: var(--text-white);
}

.form__input:focus {
  border-color: var(--green-primary);
  box-shadow: 0 0 0 3px rgba(34, 197, 94, 0.15);
}

.form__checkbox {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  cursor: pointer;
  font-size: 0.78rem;
  color: var(--text-gray);
  line-height: 1.5;
}

.form__checkbox input[type="checkbox"] {
  appearance: none;
  -webkit-appearance: none;
  width: 18px;
  height: 18px;
  min-width: 18px;
  border: 1px solid var(--border-subtle);
  border-radius: 4px;
  background-color: var(--bg-input);
  cursor: pointer;
  margin-top: 1px;
  transition: all var(--transition-fast);
}

.form__checkbox input[type="checkbox"]:checked {
  background-color: var(--green-primary);
  border-color: var(--green-primary);
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 16 16' fill='white' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath d='M12.207 4.793a1 1 0 010 1.414l-5 5a1 1 0 01-1.414 0l-2-2a1 1 0 011.414-1.414L6.5 9.086l4.293-4.293a1 1 0 011.414 0z'/%3E%3C/svg%3E");
  background-size: 12px;
  background-position: center;
  background-repeat: no-repeat;
}

.form__link {
  color: var(--green-primary);
  text-decoration: underline;
  text-underline-offset: 2px;
  transition: color var(--transition-fast);
}

.form__link:hover {
  color: var(--green-glow);
}

/* intl-tel-input overrides for dark theme */
.iti {
  width: 100%;
}

.iti__country-container {
  padding: 0;
}

.iti__selected-country-primary {
  background-color: transparent !important;
  padding: 0 10px;
}

.iti__selected-dial-code {
  color: var(--text-gray-light);
  font-size: 0.9rem;
}

.iti__arrow {
  border-top-color: var(--text-muted) !important;
}

.iti__arrow--up {
  border-bottom-color: var(--text-muted) !important;
}

.iti__dropdown-content {
  background-color: var(--bg-card) !important;
  border: 1px solid var(--border-subtle) !important;
  border-radius: var(--radius-sm);
}

.iti__search-input {
  background-color: var(--bg-input) !important;
  color: var(--text-white) !important;
  border-color: var(--border-subtle) !important;
}

.iti__country {
  padding: 8px 12px !important;
  color: var(--text-gray-light);
}

.iti__country:hover,
.iti__country--highlight {
  background-color: var(--bg-card-inner) !important;
}

.iti__country-name,
.iti__dial-code {
  color: var(--text-gray-light);
}

.iti__dial-code {
  color: var(--text-muted);
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 16px 32px;
  font-family: var(--font-body);
  font-weight: 700;
  font-size: 0.95rem;
  letter-spacing: 0.04em;
  border: none;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: all var(--transition-medium);
  text-transform: uppercase;
}

.btn--primary {
  background: linear-gradient(135deg, var(--green-primary) 0%, var(--green-accent) 100%);
  color: var(--text-white);
  box-shadow: 0 4px 20px rgba(34, 197, 94, 0.35);
}

.btn--primary:hover {
  background: linear-gradient(135deg, var(--green-glow) 0%, var(--green-primary) 100%);
  box-shadow: 0 6px 30px rgba(34, 197, 94, 0.5);
  transform: translateY(-2px);
}

.btn--primary:active {
  transform: translateY(0);
  box-shadow: 0 2px 12px rgba(34, 197, 94, 0.3);
}

/* ========================================
   TOP BAR
   ======================================== */
.top-bar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  background-color: rgba(10, 14, 19, 0.85);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border-subtle);
  padding: 12px 24px;
}

.top-bar__inner {
  max-width: var(--container-max);
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
}

.top-bar__badges {
  display: flex;
  align-items: center;
  gap: 12px;
}

.top-bar__badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 16px;
  background-color: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: 100px;
  font-size: 0.8rem;
  font-weight: 500;
  color: var(--text-gray-light);
  white-space: nowrap;
}

.top-bar__badge svg {
  flex-shrink: 0;
}

/* Countdown */
.countdown {
  display: flex;
  align-items: center;
  gap: 6px;
}

.countdown__block {
  display: flex;
  align-items: baseline;
  gap: 3px;
}

.countdown__number {
  font-family: var(--font-heading);
  font-size: 1.5rem;
  font-weight: 800;
  color: var(--text-white);
  min-width: 2ch;
}

.countdown__label {
  font-size: 0.6rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  color: var(--text-muted);
  margin-right: 10px;
}

/* ========================================
   HERO SECTION
   ======================================== */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding-top: 70px;
  overflow: hidden;
}

.hero__bg {
  position: absolute;
  inset: 0;
  z-index: 0;
}

.hero__video {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
  z-index: 0;
}

.hero__video--mobile {
  display: none;
}

.hero__video-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(
    90deg,
    rgba(10, 14, 19, 0.92) 0%,
    rgba(10, 14, 19, 0.75) 40%,
    rgba(10, 14, 19, 0.3) 70%,
    rgba(10, 14, 19, 0.15) 100%
  );
  z-index: 1;
}

/* Green ambient glow behind image area */
.hero__bg::after {
  content: '';
  position: absolute;
  top: 10%;
  right: 15%;
  width: 500px;
  height: 500px;
  background: radial-gradient(ellipse, rgba(34, 197, 94, 0.12) 0%, transparent 70%);
  pointer-events: none;
  z-index: 1;
}

.hero__content {
  position: relative;
  z-index: 2;
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 60px 24px;
  width: 100%;
}

.hero__text {
  max-width: 520px;
}

.hero__logo {
  max-width: 280px;
  height: auto;
  margin-top: -80px;
  margin-bottom: 24px;
}

/* Mobile-only video below the form — hidden on desktop */
.hero__video--below-form {
  display: none;
}

.hero__eyebrow {
  font-family: var(--font-heading);
  font-size: 0.85rem;
  font-weight: 600;
  letter-spacing: 0.4em;
  color: var(--green-primary);
  margin-bottom: 4px;
}

.hero__title {
  font-family: var(--font-heading);
  font-size: 3.5rem;
  font-weight: 900;
  line-height: 1;
  margin-bottom: 20px;
  color: var(--text-white);
}

.hero__title-accent {
  color: var(--green-primary);
  text-shadow: 0 0 30px rgba(34, 197, 94, 0.4);
}

.hero__subtitle {
  font-family: var(--font-heading);
  font-size: 2.2rem;
  font-weight: 900;
  line-height: 1.2;
  margin-bottom: 16px;
  color: var(--text-white);
}

.hero__headline {
  font-family: var(--font-heading);
  font-size: 1.45rem;
  font-weight: 700;
  line-height: 1.35;
  margin-bottom: 16px;
  color: var(--text-white);
}

.hero__description {
  font-size: 1.05rem;
  line-height: 1.7;
  color: var(--text-gray-light);
  margin-bottom: 28px;
}

.hero__description strong {
  color: var(--text-white);
}

.hero__form {
  display: flex;
  flex-direction: column;
  gap: 10px;
  max-width: 100%;
  margin-bottom: 14px;
}

.hero__form .btn {
  width: 100%;
}

.hero__bonus {
  font-size: 0.8rem;
  color: var(--text-muted);
  display: flex;
  align-items: center;
  gap: 6px;
}

/* ========================================
   MARQUEE TICKER
   ======================================== */
.marquee {
  background-color: var(--bg-marquee);
  border-top: 1px solid var(--border-subtle);
  border-bottom: 1px solid var(--border-subtle);
  padding: 16px 0;
  overflow: hidden;
  white-space: nowrap;
}

.marquee__track {
  display: inline-flex;
  align-items: center;
  gap: 24px;
  animation: marquee-scroll 30s linear infinite;
}

.marquee__item {
  font-family: var(--font-heading);
  font-size: 1.15rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  color: var(--text-white);
  text-transform: uppercase;
}

.marquee__diamond {
  color: var(--green-primary);
  font-size: 1rem;
}

@keyframes marquee-scroll {
  0% {
    transform: translateX(0);
  }
  100% {
    transform: translateX(-50%);
  }
}

/* ========================================
   FOR WHO SECTION
   ======================================== */
.for-who {
  padding: var(--section-padding);
  background-color: var(--bg-dark);
  position: relative;
  overflow: hidden;
}

/* Ambient background glow */
.for-who::before {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 800px;
  height: 400px;
  background: radial-gradient(ellipse at center, rgba(34, 197, 94, 0.05) 0%, transparent 70%);
  pointer-events: none;
  z-index: 0;
}

.for-who__container {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 24px;
  display: flex;
  justify-content: center;
  position: relative;
  z-index: 1;
}

.for-who__card-wrapper {
  background: linear-gradient(135deg, #111820 0%, #0c1219 100%);
  border: 1px solid var(--border-card);
  border-top: 3px solid var(--green-primary);
  border-radius: var(--radius-xl);
  padding: 48px 40px;
  max-width: 1080px;
  width: 100%;
  box-shadow: 0 20px 50px -15px rgba(0, 0, 0, 0.7), 0 0 30px -5px rgba(34, 197, 94, 0.02);
}

.for-who__title {
  font-family: var(--font-heading);
  font-size: 1.85rem;
  font-weight: 800;
  line-height: 1.3;
  margin-bottom: 32px;
  color: var(--text-white);
  text-align: center;
}

.for-who__grid {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: 20px;
}

.for-who__card {
  background: rgba(22, 30, 40, 0.65);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 32px 28px;
  transition: border-color var(--transition-medium), transform var(--transition-medium), box-shadow var(--transition-medium);
}

.for-who__card:hover {
  border-color: var(--green-primary);
  transform: translateY(-6px);
  box-shadow: 0 15px 35px -10px rgba(34, 197, 94, 0.2);
}

.for-who__card:hover .for-who__icon {
  transform: scale(1.1);
  background-color: rgba(34, 197, 94, 0.2);
  border-color: rgba(34, 197, 94, 0.4);
  box-shadow: 0 0 15px rgba(34, 197, 94, 0.2);
}

.for-who__icon {
  width: 48px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  background-color: rgba(34, 197, 94, 0.12);
  border: 1px solid rgba(34, 197, 94, 0.25);
  border-radius: var(--radius-md);
  margin-bottom: 20px;
  color: var(--green-primary);
  box-shadow: 0 4px 12px rgba(34, 197, 94, 0.08);
  transition: transform var(--transition-medium), background-color var(--transition-medium), border-color var(--transition-medium), box-shadow var(--transition-medium);
}

.for-who__text {
  font-size: 0.98rem;
  line-height: 1.65;
  color: var(--text-gray-light);
}

.for-who__text strong {
  color: var(--text-white);
  font-weight: 700;
}

/* ========================================
   WHAT YOU WILL MASTER SECTION (SPLIT & TERMINAL)
   ======================================== */
.what-you-learn {
  padding: var(--section-padding);
  background: linear-gradient(180deg, #090d12 0%, #06090d 100%);
  position: relative;
  overflow: hidden;
  border-top: 1px solid var(--border-subtle);
  border-bottom: 1px solid var(--border-subtle);
}

.what-you-learn::before {
  content: '';
  position: absolute;
  top: 30%;
  left: 10%;
  width: 500px;
  height: 500px;
  background: radial-gradient(circle, rgba(34, 197, 94, 0.03) 0%, transparent 70%);
  pointer-events: none;
  z-index: 0;
}

.what-you-learn__container {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 24px;
  position: relative;
  z-index: 1;
}

.what-you-learn__header {
  text-align: center;
  margin-bottom: 56px;
}

.what-you-learn__subtitle {
  color: var(--green-primary);
  font-family: var(--font-heading);
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.25em;
  margin-bottom: 8px;
  text-transform: uppercase;
}

.what-you-learn__title {
  font-family: var(--font-heading);
  font-size: 2.1rem;
  font-weight: 800;
  line-height: 1.3;
  color: var(--text-white);
}

.what-you-learn__split {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: 50px;
  align-items: center;
}

/* TERMINAL MOCKUP */
.what-you-learn__visual-col {
  position: relative;
}

.engine-wrapper {
  width: 100%;
  display: flex;
  justify-content: center;
}

.engine-container {
  position: relative;
  width: 100%;
  max-width: 440px;
  height: 440px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: transparent;
  border: none;
  border-radius: var(--radius-lg);
  overflow: visible;
  box-shadow: none;
}

.engine-core {
  position: relative;
  z-index: 10;
  width: 96px;
  height: 96px;
  background: radial-gradient(circle, #162232 0%, #0c1420 100%);
  border: 2px solid var(--green-primary);
  border-radius: 50%;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  box-shadow: 0 0 35px rgba(34, 197, 94, 0.3), inset 0 0 15px rgba(34, 197, 94, 0.2);
  animation: pulse-core 3s infinite ease-in-out;
}

@keyframes pulse-core {
  0%, 100% { transform: scale(1); box-shadow: 0 0 30px rgba(34, 197, 94, 0.25); }
  50% { transform: scale(1.05); box-shadow: 0 0 45px rgba(34, 197, 94, 0.45); }
}

.core-icon {
  font-size: 1.6rem;
  margin-bottom: 2px;
}

.core-label {
  font-size: 0.58rem;
  font-weight: 900;
  color: var(--green-primary);
  letter-spacing: 0.05em;
  line-height: 1.2;
}

.engine-orbit {
  position: absolute;
  border-radius: 50%;
  border: 1px dashed rgba(34, 197, 94, 0.12);
  pointer-events: none;
}

.orbit--inner {
  width: 220px;
  height: 220px;
  animation: rotate-clockwise 20s linear infinite;
}

.orbit--outer {
  width: 310px;
  height: 310px;
  border: 1px dotted rgba(34, 197, 94, 0.08);
  animation: rotate-counter-clockwise 30s linear infinite;
}

@keyframes rotate-clockwise {
  from { transform: rotate(0deg); }
  to { transform: rotate(360deg); }
}

@keyframes rotate-counter-clockwise {
  from { transform: rotate(360deg); }
  to { transform: rotate(0deg); }
}

.engine-scanner {
  position: absolute;
  width: 320px;
  height: 320px;
  background: conic-gradient(from 0deg, rgba(34, 197, 94, 0.1) 0deg, transparent 95deg);
  border-radius: 50%;
  pointer-events: none;
  z-index: 2;
  animation: scan 4s linear infinite;
}

@keyframes scan {
  from { transform: rotate(0deg); }
  to { transform: rotate(360deg); }
}

.engine-node {
  position: absolute;
  display: flex;
  align-items: center;
  gap: 8px;
  z-index: 5;
  transition: filter 0.3s ease;
}

.node-dot {
  width: 10px;
  height: 10px;
  background-color: var(--green-primary);
  border-radius: 50%;
  box-shadow: 0 0 10px var(--green-primary);
  flex-shrink: 0;
}

.node-card {
  background: rgba(17, 23, 35, 0.9);
  border: 1px solid rgba(34, 197, 94, 0.2);
  border-radius: var(--radius-sm);
  padding: 6px 10px;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.4);
  min-width: 135px;
}

.node-title {
  display: block;
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 0.72rem;
  color: var(--text-white);
  line-height: 1.2;
}

.node-desc {
  display: block;
  font-size: 0.62rem;
  color: var(--text-muted);
  margin-top: 1px;
  line-height: 1.2;
}

.node--ia {
  top: 15%;
  left: 0%;
  flex-direction: row;
  animation: pulse-node-1 4s infinite;
}

.node--rules {
  top: 15%;
  right: 0%;
  flex-direction: row-reverse;
  animation: pulse-node-2 4s infinite;
}

.node--shield {
  bottom: 8%;
  left: 50%;
  transform: translateX(-50%);
  flex-direction: column;
  animation: pulse-node-3 4s infinite;
}

@keyframes pulse-node-1 {
  0%, 100% { filter: brightness(0.9); }
  10%, 35% { filter: brightness(1.5); }
  45% { filter: brightness(0.9); }
}

@keyframes pulse-node-2 {
  0%, 100% { filter: brightness(0.9); }
  25% { filter: brightness(0.9); }
  40% { filter: brightness(1.5); }
  75% { filter: brightness(0.9); }
}

@keyframes pulse-node-3 {
  0%, 100% { filter: brightness(0.9); }
  60% { filter: brightness(0.9); }
  75%, 95% { filter: brightness(1.5); }
}

.terminal-glow-bg {
  position: absolute;
  top: -10%;
  left: -10%;
  right: -10%;
  bottom: -10%;
  background: radial-gradient(circle at center, rgba(34, 197, 94, 0.04) 0%, transparent 60%);
  z-index: -1;
  pointer-events: none;
}

.terminal-glow-bg {
  position: absolute;
  top: -10%;
  left: -10%;
  right: -10%;
  bottom: -10%;
  background: radial-gradient(circle at center, rgba(34, 197, 94, 0.04) 0%, transparent 60%);
  z-index: -1;
  pointer-events: none;
}

/* STEPS STYLING */
.what-you-learn__steps-col {
  display: flex;
  flex-direction: column;
  gap: 32px;
}

.step-item {
  display: flex;
  gap: 20px;
  position: relative;
  transition: transform 0.3s ease;
}

.step-item:hover {
  transform: translateX(8px);
}

.step-number-wrapper {
  display: flex;
  flex-direction: column;
  align-items: center;
}

.step-number {
  font-family: var(--font-heading);
  font-size: 1rem;
  font-weight: 800;
  color: var(--green-primary);
  background: rgba(34, 197, 94, 0.1);
  border: 1px solid rgba(34, 197, 94, 0.25);
  border-radius: 50%;
  width: 44px;
  height: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 0 15px rgba(34, 197, 94, 0.15);
  z-index: 2;
  transition: background 0.3s ease, color 0.3s ease, transform 0.3s ease, box-shadow 0.3s ease;
}

.step-item:hover .step-number {
  background: var(--green-primary);
  color: #06090d;
  transform: scale(1.1);
  box-shadow: 0 0 20px rgba(34, 197, 94, 0.4);
}

.step-connector {
  width: 2px;
  background: linear-gradient(to bottom, rgba(34, 197, 94, 0.3) 0%, transparent 100%);
  flex-grow: 1;
  margin-top: 12px;
  margin-bottom: -32px;
  z-index: 1;
}

.step-content {
  padding-top: 6px;
}

.step-title {
  font-family: var(--font-heading);
  font-size: 1.15rem;
  font-weight: 700;
  margin-bottom: 8px;
  color: var(--text-white);
  transition: color 0.3s ease;
}

.step-item:hover .step-title {
  color: var(--green-glow);
}

.step-desc {
  font-size: 0.95rem;
  line-height: 1.6;
  color: var(--text-gray);
  transition: color 0.3s ease;
}

.step-item:hover .step-desc {
  color: var(--text-gray-light);
}

/* ========================================
   PROFESSOR SECTION
   ======================================== */
.professor {
  padding: var(--section-padding);
  background-color: var(--bg-dark);
}

.professor__container {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 24px;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
  align-items: center;
}

.professor__image-col {
  position: relative;
}

.professor__image-wrapper {
  width: 100%;
  aspect-ratio: 3 / 4;
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid rgba(34, 197, 94, 0.2);
  box-shadow: 0 15px 40px rgba(0, 0, 0, 0.6), 0 0 30px rgba(34, 197, 94, 0.05);
  position: relative;
  background: linear-gradient(180deg, #162232 0%, #0c1420 100%);
}

.professor__img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  transition: transform 0.5s ease, filter 0.5s ease;
}

.professor__image-wrapper:hover .professor__img {
  transform: scale(1.03);
}

.professor__badge {
  position: absolute;
  bottom: 24px;
  left: 20px;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 18px;
  background-color: rgba(17, 24, 32, 0.9);
  backdrop-filter: blur(8px);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm);
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--text-white);
}

.professor__badge-icon {
  font-size: 0.9rem;
}

.professor__eyebrow {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 0.85rem;
  color: var(--text-gray);
  margin-bottom: 8px;
}

.professor__eyebrow-line {
  width: 3px;
  height: 20px;
  background-color: var(--green-primary);
  border-radius: 2px;
}

.professor__name {
  font-family: var(--font-heading);
  font-size: 2.2rem;
  font-weight: 900;
  color: var(--text-white);
  margin-bottom: 20px;
  line-height: 1.1;
}

.professor__bio {
  font-size: 1.05rem;
  line-height: 1.75;
  color: var(--text-gray);
  margin-bottom: 14px;
}

.professor__bio strong {
  color: var(--text-white);
}

.professor__bio:last-child {
  margin-bottom: 0;
}

.professor__quote-card {
  background: rgba(34, 197, 94, 0.03);
  border-left: 3px solid var(--green-primary);
  padding: 16px 20px;
  border-radius: 0 var(--radius-md) var(--radius-md) 0;
  margin-bottom: 22px;
  border-top: 1px solid rgba(34, 197, 94, 0.05);
  border-right: 1px solid rgba(34, 197, 94, 0.05);
  border-bottom: 1px solid rgba(34, 197, 94, 0.05);
}

.professor__quote-text {
  font-size: 1.05rem;
  font-style: italic;
  line-height: 1.5;
  color: var(--text-white);
  margin-bottom: 8px;
}

.professor__quote-author {
  font-size: 0.8rem;
  font-weight: 700;
  color: var(--green-primary);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  display: block;
}

/* ========================================
   FOOTER CTA SECTION
   ======================================== */
.footer-cta {
  padding: var(--section-padding);
  background-color: var(--bg-dark);
  border-top: 1px solid var(--border-subtle);
}

.footer-cta__container {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 24px;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
}

.footer-cta__eyebrow {
  font-family: var(--font-heading);
  font-size: 0.85rem;
  font-weight: 600;
  letter-spacing: 0.4em;
  color: var(--green-primary);
  margin-bottom: 4px;
}

.footer-cta__title {
  font-family: var(--font-heading);
  font-size: 2.2rem;
  font-weight: 900;
  line-height: 1.2;
  margin-bottom: 16px;
  color: var(--text-white);
  max-width: 550px;
}

.footer-cta__title-accent {
  color: var(--green-primary);
  text-shadow: 0 0 30px rgba(34, 197, 94, 0.4);
}

.footer-cta__desc {
  font-size: 1rem;
  line-height: 1.6;
  color: var(--text-gray);
  max-width: 500px;
}

.footer-cta__form {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.footer-cta__form .btn {
  width: 100%;
}

/* ========================================
   FOOTER
   ======================================== */
.footer {
  padding: 32px 24px;
  background-color: var(--bg-dark);
  border-top: 1px solid var(--border-subtle);
}

.footer__inner {
  max-width: var(--container-max);
  margin: 0 auto;
  text-align: center;
}

.footer__top {
  display: flex;
  justify-content: space-between;
  gap: 24px;
  margin-bottom: 24px;
  font-size: 0.78rem;
  color: var(--text-muted);
}

.footer__disclaimer {
  background-color: var(--bg-card);
  border: 1px solid var(--border-card);
  border-radius: 100px;
  padding: 12px 24px;
  display: inline-block;
}

.footer__disclaimer p {
  font-size: 0.72rem;
  color: var(--text-muted);
}

/* ========================================
   RESPONSIVE
   ======================================== */
@media (max-width: 768px) {
  .hide-mobile {
    display: none;
  }

  /* Top bar — mobile layout */
  .top-bar {
    padding: 10px 16px;
  }

  .top-bar__inner {
    flex-direction: column;
    gap: 8px;
  }

  .top-bar__badges {
    flex-wrap: wrap;
    justify-content: center;
    gap: 8px;
  }

  .top-bar__badge {
    font-size: 0.75rem;
    padding: 6px 12px;
    animation: badgePulse 2.5s ease-in-out infinite;
  }

  .top-bar__badge:nth-child(2) {
    background: linear-gradient(135deg, rgba(34, 197, 94, 0.15), rgba(34, 197, 94, 0.05));
    border-color: rgba(34, 197, 94, 0.4);
    color: var(--green-primary);
    animation: livePulse 2s ease-in-out infinite;
  }

  .top-bar__badge:nth-child(2) svg {
    stroke: var(--green-primary);
  }

  @keyframes badgePulse {
    0%, 100% { opacity: 0.85; }
    50% { opacity: 1; }
  }

  @keyframes livePulse {
    0%, 100% {
      box-shadow: 0 0 0 0 rgba(34, 197, 94, 0);
      border-color: rgba(34, 197, 94, 0.4);
    }
    50% {
      box-shadow: 0 0 12px 2px rgba(34, 197, 94, 0.25);
      border-color: rgba(34, 197, 94, 0.7);
    }
  }

  .countdown {
    gap: 2px;
  }

  .countdown__number {
    font-size: 1.1rem;
  }

  .countdown__label {
    font-size: 0.55rem;
    margin-right: 6px;
  }

  /* Hero — fix logo overlap */
  .hero {
    padding-top: 95px;
    min-height: auto;
    padding-bottom: 0;
    background-color: var(--bg-dark);
  }

  /* Hide the absolute bg layer since video is below */
  .hero__bg {
    display: none;
  }

  .hero__content {
    padding-top: 10px;
    padding-bottom: 60px;
  }

  /* Hide both background videos on mobile — video appears below form instead */
  .hero__video--desktop,
  .hero__video--mobile {
    display: none;
  }

  /* Show video below the form on mobile */
  .hero__video--below-form {
    display: block;
    width: calc(100% + 48px);
    margin-left: -24px;
    margin-right: -24px;
    margin-top: 24px;
    height: 220px;
    object-fit: cover;
    object-position: center top;
    border-radius: 0;
    opacity: 0.85;
  }

  .hero__logo {
    display: block;
    margin: 0 auto 20px auto;
    max-width: 240px;
  }

  .hero__title {
    font-size: 2.5rem;
  }

  .hero__headline {
    font-size: 1.15rem;
  }

  .hero__form {
    max-width: 100%;
  }

  /* For who */
  .for-who__card-wrapper {
    padding: 32px 24px;
  }

  .for-who__grid {
    grid-template-columns: 1fr;
  }

  .for-who__title {
    font-size: 1.35rem;
  }

  /* What you will master */
  .what-you-learn__split {
    grid-template-columns: 1fr;
    gap: 40px;
  }

  .what-you-learn__visual-col {
    order: 2;
  }

  .engine-container {
    transform: scale(0.85);
    transform-origin: center center;
    margin: -25px 0;
  }

  .step-connector {
    display: none;
  }
  
  .step-item {
    gap: 16px;
  }
  
  .step-number {
    width: 36px;
    height: 36px;
    font-size: 0.9rem;
  }
  
  .what-you-learn__title {
    font-size: 1.45rem;
  }

  /* Professor */
  .professor__container {
    grid-template-columns: 1fr;
    gap: 32px;
  }

  .professor__name {
    font-size: 1.8rem;
  }

  /* Footer CTA */
  .footer-cta__container {
    grid-template-columns: 1fr;
    gap: 32px;
  }

  .footer-cta__title {
    font-size: 2.2rem;
  }

  /* Footer */
  .footer__top {
    flex-direction: column;
    align-items: center;
    text-align: center;
    gap: 12px;
  }
}

@media (max-width: 480px) {
  .hero__title {
    font-size: 2rem;
  }

  .hero__headline {
    font-size: 1rem;
  }

  .for-who__card {
    padding: 20px;
  }

  .btn {
    padding: 14px 24px;
    font-size: 0.85rem;
  }
}