/* ========================================
   Design Tokens
   ======================================== */
:root {
  /* Colors */
  --color-navy: #0f1b4c;
  --color-navy-light: #1e2d6f;
  --color-blue-accent: #3b5fec;
  --color-blue-soft: #e8edff;
  --color-white: #ffffff;
  --color-bg: #fafbfc;
  --color-bg-alt: #f3f4f6;
  --color-text: #374151;
  --color-text-light: #6b7280;
  --color-border: #e5e7eb;
  --color-border-light: #f0f1f3;

  /* Typography */
  --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-size-xs: 0.8125rem;
  --font-size-sm: 0.875rem;
  --font-size-base: 1rem;
  --font-size-lg: 1.125rem;
  --font-size-xl: 1.5rem;
  --font-size-2xl: 2rem;
  --font-size-3xl: 2.5rem;

  /* Spacing */
  --space-xs: 0.5rem;
  --space-sm: 0.75rem;
  --space-md: 1rem;
  --space-lg: 1.5rem;
  --space-xl: 2.5rem;
  --space-2xl: 4rem;
  --space-3xl: 6rem;

  /* Misc */
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 20px;
  --radius-full: 100px;
  --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.04);
  --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.06);
  --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.08);
  --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

/* ========================================
   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-family);
  font-size: var(--font-size-base);
  color: var(--color-text);
  background-color: var(--color-white);
  line-height: 1.6;
}

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

button {
  cursor: pointer;
  border: none;
  background: none;
  font-family: inherit;
}

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

/* ========================================
   Utility
   ======================================== */
.section-container {
  max-width: 960px;
  margin: 0 auto;
  padding: 0 var(--space-lg);
}

.section-title {
  font-size: var(--font-size-2xl);
  font-weight: 700;
  color: var(--color-navy);
  text-align: center;
  margin-bottom: var(--space-2xl);
  letter-spacing: -0.02em;
}

/* ========================================
   Buttons
   ======================================== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-weight: 600;
  font-size: var(--font-size-sm);
  border-radius: var(--radius-full);
  padding: 0.7rem 1.6rem;
  transition: all var(--transition);
  white-space: nowrap;
}

.btn-primary {
  background-color: var(--color-navy);
  color: var(--color-white);
}

.btn-primary:hover {
  background-color: var(--color-navy-light);
  transform: translateY(-1px);
  box-shadow: var(--shadow-md);
}

.btn-sm {
  padding: 0.5rem 1.2rem;
  font-size: var(--font-size-xs);
}

/* ========================================
   Navigation
   ======================================== */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  background: rgba(255, 255, 255, 0.85);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--color-border-light);
  transition: box-shadow var(--transition);
}

.nav.scrolled {
  box-shadow: var(--shadow-sm);
}

.nav-container {
  max-width: 960px;
  margin: 0 auto;
  padding: 0 var(--space-lg);
  height: 64px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.nav-logo img {
  height: 80px;
  width: auto;
}

/* ========================================
   Hero Carousel
   ======================================== */
.hero {
  padding-top: calc(64px + var(--space-3xl));
  padding-bottom: var(--space-3xl);
  background-color: var(--color-white);
  min-height: 80vh;
  display: flex;
  align-items: center;
  justify-content: center;
}

.carousel {
  max-width: 720px;
  margin: 0 auto;
  text-align: center;
  position: relative;
  padding: 0 var(--space-lg);
}

.carousel-track {
  position: relative;
  overflow: hidden;
}

.carousel-slide {
  display: none;
  animation: fadeSlide 0.5s ease;
}

.carousel-slide.active {
  display: block;
}

@keyframes fadeSlide {
  from {
    opacity: 0;
    transform: translateY(12px);
  }

  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.slide-content {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-lg);
}

/* ---- Phone Mockup ---- */
.mockup-phone {
  width: 340px;
  background: var(--color-white);
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-border);
  box-shadow: var(--shadow-lg);
  overflow: hidden;
  text-align: left;
}

.mockup-header {
  padding: 12px 16px;
  font-weight: 700;
  font-size: var(--font-size-sm);
  color: var(--color-navy);
  border-bottom: 1px solid var(--color-border-light);
  background: var(--color-bg);
  display: flex;
  align-items: center;
  gap: 8px;
}

.mockup-logo-img {
  height: 48px;
  width: auto;
}

.mockup-chat {
  padding: 16px;
  display: flex;
  flex-direction: column;
  gap: 12px;
  min-height: 280px;
}

.mockup-input {
  padding: 12px 16px;
  border-top: 1px solid var(--color-border-light);
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: var(--color-bg);
}

.mockup-input-text {
  font-size: 12px;
  color: #9ca3af;
}

/* ---- Chat Bubbles ---- */
.chat-msg {
  display: flex;
  gap: 8px;
  align-items: flex-end;
}

.chat-msg.user {
  justify-content: flex-end;
}

.chat-bubble {
  padding: 10px 14px;
  border-radius: 16px;
  font-size: 13px;
  line-height: 1.5;
  max-width: 240px;
}

.user-bubble {
  background: var(--color-bg-alt);
  color: var(--color-text);
  border-bottom-right-radius: 4px;
}

.ai-bubble {
  background: var(--color-navy);
  color: var(--color-white);
  border-bottom-left-radius: 4px;
}

.chat-avatar {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: var(--color-navy);
  color: var(--color-white);
  font-size: 10px;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

/* ---- File Attachment ---- */
.chat-file {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 14px;
  background: var(--color-bg-alt);
  border-radius: 12px;
  border-bottom-right-radius: 4px;
}

.chat-file-info {
  display: flex;
  flex-direction: column;
}

.chat-file-name {
  font-size: 12px;
  font-weight: 600;
  color: var(--color-text);
}

.chat-file-size {
  font-size: 11px;
  color: var(--color-text-light);
}

/* ---- Job Cards ---- */
.chat-job-cards {
  display: flex;
  flex-direction: column;
  gap: 8px;
  max-width: 240px;
}

.job-card {
  padding: 10px 12px;
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: 10px;
}

.job-card-top {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 2px;
}

.job-title {
  font-size: 12px;
  font-weight: 600;
  color: var(--color-navy);
}

.job-match {
  font-size: 11px;
  font-weight: 700;
  color: #059669;
  background: #ecfdf5;
  padding: 2px 6px;
  border-radius: 4px;
}

.job-company {
  font-size: 11px;
  color: var(--color-text-light);
}

/* ---- Apply Progress ---- */
.apply-item {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 12px;
  padding: 4px 0;
}

.apply-item svg {
  flex-shrink: 0;
}

.spinner {
  width: 14px;
  height: 14px;
  border: 2px solid rgba(255, 255, 255, 0.3);
  border-top-color: white;
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
  flex-shrink: 0;
}

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

/* ---- Status Cards ---- */
.chat-status-cards {
  display: flex;
  flex-direction: column;
  gap: 8px;
  max-width: 240px;
}

.status-card {
  padding: 10px 12px;
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: 10px;
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.status-badge {
  font-size: 10px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  padding: 2px 8px;
  border-radius: 4px;
  width: fit-content;
  margin-bottom: 2px;
}

.status-badge.interview {
  color: #059669;
  background: #ecfdf5;
}

.status-badge.viewed {
  color: #2563eb;
  background: #eff6ff;
}

.status-badge.pending {
  color: #6b7280;
  background: var(--color-bg-alt);
}

.status-role {
  font-size: 12px;
  font-weight: 600;
  color: var(--color-navy);
}

.status-detail {
  font-size: 11px;
  color: var(--color-text-light);
}

.slide-title {
  font-size: var(--font-size-3xl);
  font-weight: 700;
  color: var(--color-navy);
  letter-spacing: -0.03em;
  line-height: 1.1;
}

.slide-description {
  font-size: var(--font-size-lg);
  color: var(--color-text-light);
  max-width: 440px;
  line-height: 1.6;
}

/* Carousel Controls */
.carousel-controls {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-lg);
  margin-top: var(--space-xl);
}

.carousel-arrow {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-text-light);
  border: 1px solid var(--color-border);
  transition: all var(--transition);
  background: var(--color-white);
}

.carousel-arrow:hover {
  color: var(--color-navy);
  border-color: var(--color-navy);
  transform: scale(1.05);
}

.carousel-dots {
  display: flex;
  gap: var(--space-xs);
}

.carousel-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--color-border);
  transition: all var(--transition);
}

.carousel-dot.active {
  background: var(--color-navy);
  width: 24px;
  border-radius: 4px;
}

/* ========================================
   How It Works
   ======================================== */
.how-it-works {
  padding: var(--space-3xl) 0;
  background-color: var(--color-bg);
}

.steps {
  display: flex;
  align-items: flex-start;
  justify-content: center;
  gap: var(--space-md);
}

.step {
  text-align: center;
  flex: 1;
  max-width: 220px;
}

.step-number {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: var(--color-navy);
  color: var(--color-white);
  font-weight: 700;
  font-size: var(--font-size-lg);
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto var(--space-md);
}

.step-title {
  font-size: var(--font-size-lg);
  font-weight: 600;
  color: var(--color-navy);
  margin-bottom: var(--space-xs);
}

.step-text {
  font-size: var(--font-size-sm);
  color: var(--color-text-light);
  line-height: 1.6;
}

.step-connector {
  display: flex;
  align-items: center;
  padding-top: 23px;
}

/* ========================================
   CTA / Waitlist
   ======================================== */
.cta {
  padding: var(--space-3xl) 0;
  background-color: var(--color-white);
}

.cta-card {
  text-align: center;
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-2xl) var(--space-xl);
  max-width: 560px;
  margin: 0 auto;
}

.cta-title {
  font-size: var(--font-size-2xl);
  font-weight: 700;
  color: var(--color-navy);
  margin-bottom: var(--space-xs);
  letter-spacing: -0.02em;
}

.cta-text {
  color: var(--color-text-light);
  margin-bottom: var(--space-xl);
}

.cta-form {
  display: flex;
  gap: var(--space-sm);
  max-width: 420px;
  margin: 0 auto;
}

.cta-input {
  flex: 1;
  padding: 0.75rem 1.2rem;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-full);
  font-family: var(--font-family);
  font-size: var(--font-size-sm);
  color: var(--color-text);
  background: var(--color-white);
  outline: none;
  transition: border-color var(--transition);
}

.cta-input:focus {
  border-color: var(--color-navy);
}

.cta-input::placeholder {
  color: var(--color-text-light);
}

.cta-note {
  font-size: var(--font-size-xs);
  color: var(--color-text-light);
  margin-top: var(--space-sm);
  min-height: 1.2em;
}

.cta-note.success {
  color: #059669;
}

/* ========================================
   Footer
   ======================================== */
.footer {
  padding: var(--space-xl) 0;
  border-top: 1px solid var(--color-border-light);
  background: var(--color-white);
}

.footer-content {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.footer-logo img {
  height: 22px;
  width: auto;
  opacity: 0.5;
}

.footer-copy {
  font-size: var(--font-size-xs);
  color: var(--color-text-light);
}

/* ========================================
   Animations
   ======================================== */
.fade-in {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.fade-in.visible {
  opacity: 1;
  transform: translateY(0);
}

/* Stagger children */
.steps .fade-in:nth-child(1) {
  transition-delay: 0s;
}

.steps .fade-in:nth-child(2) {
  transition-delay: 0.1s;
}

.steps .fade-in:nth-child(3) {
  transition-delay: 0.2s;
}

.steps .fade-in:nth-child(4) {
  transition-delay: 0.3s;
}

.steps .fade-in:nth-child(5) {
  transition-delay: 0.4s;
}

.steps .fade-in:nth-child(6) {
  transition-delay: 0.5s;
}

.steps .fade-in:nth-child(7) {
  transition-delay: 0.6s;
}

/* ========================================
   Responsive
   ======================================== */
@media (max-width: 768px) {
  :root {
    --font-size-3xl: 1.875rem;
    --font-size-2xl: 1.5rem;
  }

  .hero {
    min-height: auto;
    padding-top: calc(64px + var(--space-2xl));
    padding-bottom: var(--space-2xl);
  }

  .mockup-phone {
    width: 300px;
  }

  .steps {
    flex-direction: column;
    align-items: center;
    gap: var(--space-lg);
  }

  .step-connector {
    transform: rotate(90deg);
    padding-top: 0;
  }

  .step {
    max-width: 280px;
  }

  .cta-form {
    flex-direction: column;
  }

  .footer-content {
    flex-direction: column;
    gap: var(--space-sm);
    text-align: center;
  }
}

@media (max-width: 480px) {
  :root {
    --font-size-3xl: 1.5rem;
    --font-size-2xl: 1.25rem;
  }

  .mockup-phone {
    width: 260px;
  }

  .carousel-arrow {
    width: 36px;
    height: 36px;
  }
}