/* ============================================
   Blitz Contact Finder — ColdStart Design
   Cabinet Grotesk + Inter · Purple accent
   ============================================ */

:root {
  --bg: #050508;
  --text: #e8e8ec;
  --text-dim: rgba(232, 232, 236, 0.3);
  --text-muted: rgba(232, 232, 236, 0.55);
  --text-body: rgba(232, 232, 236, 0.85);
  --accent: #8b9cf7;
  --accent-warm: #c4a0f7;
  --red: #ef4444;
  --font-display: 'Unbounded', sans-serif;
  --font-heading: 'Cabinet Grotesk', sans-serif;
  --font-body: 'Inter', sans-serif;
}

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

html {
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: var(--font-body);
  font-weight: 300;
  color: var(--text);
  background: var(--bg);
  overflow-x: hidden;
  letter-spacing: 0.01em;
}

a { color: inherit; text-decoration: none; }
button { font-family: inherit; }

::selection {
  background: var(--accent);
  color: var(--bg);
}

/* --- Canvas --- */
#cube-canvas {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: 0;
}

/* --- Grain --- */
.grain {
  position: fixed;
  inset: 0;
  z-index: 2;
  pointer-events: none;
  opacity: 0.025;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noise'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noise)'/%3E%3C/svg%3E");
  background-repeat: repeat;
  background-size: 180px;
}

/* --- Header --- */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 200;
  padding: 1.25rem 2rem;
  transition: background 0.4s ease, backdrop-filter 0.4s ease, border-color 0.4s ease;
  border-bottom: 1px solid transparent;
}

.site-header.scrolled {
  background: rgba(5, 5, 8, 0.88);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom-color: rgba(255, 255, 255, 0.06);
}

.site-header nav {
  display: flex;
  justify-content: space-between;
  align-items: center;
  max-width: 1280px;
  margin: 0 auto;
}

.nav-logo {
  font-family: var(--font-body);
  font-size: 1.3rem;
  font-weight: 600;
  color: var(--text);
  letter-spacing: -0.01em;
}

.brand-accent { color: var(--accent); }

.nav-links {
  display: flex;
  align-items: center;
  gap: 2.5rem;
}

.nav-links a {
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--text-muted);
  transition: color 0.2s ease;
}

.nav-links a:hover { color: var(--text); }

.nav-cta {
  color: var(--bg) !important;
  background: var(--accent);
  padding: 0.6rem 1.4rem;
  border-radius: 10px;
  font-weight: 600 !important;
  transition: transform 0.25s cubic-bezier(0.34, 1.56, 0.64, 1), box-shadow 0.25s ease !important;
  box-shadow: 0 4px 16px rgba(139, 156, 247, 0.25);
}

.nav-cta:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(139, 156, 247, 0.35);
}

/* --- Hero --- */
.hero-text {
  position: fixed;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  z-index: 10;
  pointer-events: none;
  max-width: 720px;
  text-align: center;
  width: 90%;
}

.hero-label {
  font-family: var(--font-body);
  font-size: 0.65rem;
  font-weight: 500;
  letter-spacing: 0.25em;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-bottom: 1.5rem;
  opacity: 0;
}

.hero-heading {
  font-family: var(--font-heading);
  font-size: clamp(2rem, 4.8vw, 3.8rem);
  font-weight: 700;
  line-height: 1.15;
  letter-spacing: -0.025em;
}

.hero-heading .line {
  display: block;
  opacity: 0;
}

.hero-heading .accent {
  color: var(--accent);
}

.hero-sub {
  font-family: var(--font-body);
  font-size: 1.1rem;
  font-weight: 300;
  line-height: 1.7;
  color: var(--text-body);
  max-width: 540px;
  margin: 1.5rem auto 0;
  opacity: 0;
}

.hero-ctas {
  display: flex;
  gap: 1rem;
  justify-content: center;
  margin-top: 2rem;
  pointer-events: auto;
  opacity: 0;
}

/* --- Buttons --- */
.cta-btn {
  display: inline-block;
  padding: 0.9rem 2.2rem;
  font-family: var(--font-body);
  font-size: 0.8rem;
  font-weight: 500;
  letter-spacing: 0.06em;
  color: var(--bg);
  background: var(--text);
  border: none;
  border-radius: 100px;
  cursor: pointer;
  transition: background 0.4s ease, transform 0.4s ease, box-shadow 0.4s ease, color 0.4s ease;
}

.cta-btn:hover {
  background: var(--accent);
  transform: translateY(-1px);
  box-shadow: 0 8px 30px rgba(139, 156, 247, 0.2);
}

.cta-btn--outline {
  background: transparent;
  color: var(--text);
  border: 1px solid rgba(255, 255, 255, 0.15);
}

.cta-btn--outline:hover {
  background: rgba(255, 255, 255, 0.06);
  border-color: rgba(255, 255, 255, 0.25);
  color: var(--text);
  box-shadow: none;
}

/* --- Scroll Hint --- */
.scroll-hint {
  position: fixed;
  bottom: 2rem;
  left: 50%;
  transform: translateX(-50%);
  z-index: 10;
  pointer-events: none;
  opacity: 0;
}

.scroll-hint-line {
  width: 1px;
  height: 48px;
  background: linear-gradient(to bottom, transparent, var(--text-dim), transparent);
  animation: scrollPulse 2s ease-in-out infinite;
}

@keyframes scrollPulse {
  0%, 100% { opacity: 0.2; transform: scaleY(0.6); transform-origin: top; }
  50% { opacity: 0.6; transform: scaleY(1); transform-origin: top; }
}

/* --- Scroll Content --- */
.scroll-content {
  position: relative;
  z-index: 10;
  margin-top: 100vh;
}

.section {
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding: 6rem 4rem;
  justify-content: center;
}

.section-inner {
  max-width: 540px;
}

.section-inner--wide {
  max-width: 1100px;
  width: 100%;
}

.section-number {
  font-family: var(--font-body);
  font-size: 0.65rem;
  font-weight: 500;
  letter-spacing: 0.2em;
  color: var(--accent);
  display: block;
  margin-bottom: 1.8rem;
  opacity: 0;
  transform: translateY(15px);
}

.section-heading {
  font-family: var(--font-heading);
  font-size: clamp(1.8rem, 3.2vw, 2.8rem);
  font-weight: 700;
  line-height: 1.15;
  letter-spacing: -0.025em;
  color: var(--text);
  margin-bottom: 1.5rem;
  opacity: 0;
  transform: translateY(15px);
}

.section-body {
  font-family: var(--font-body);
  font-size: 1.1rem;
  font-weight: 300;
  line-height: 1.7;
  color: var(--text-body);
  max-width: 480px;
  margin-bottom: 2.5rem;
  opacity: 0;
  transform: translateY(15px);
}

/* --- CTA / Form Section --- */
.cta-section {
  position: relative;
  z-index: 10;
  padding: 8rem 4rem;
  min-height: 100vh;
  display: flex;
  align-items: flex-start;
  justify-content: center;
}

.cta-split {
  display: flex;
  gap: 5rem;
  align-items: flex-start;
  max-width: 1100px;
  width: 100%;
}

.cta-left {
  flex: 0 0 320px;
  position: sticky;
  top: 8rem;
}

.cta-heading {
  font-family: var(--font-heading);
  font-size: clamp(1.8rem, 3.2vw, 2.8rem);
  font-weight: 700;
  line-height: 1.15;
  letter-spacing: -0.025em;
  color: var(--text);
  margin-bottom: 1.5rem;
  opacity: 0;
  transform: translateY(20px);
}

.cta-heading .line { display: block; }
.cta-heading .accent { color: var(--accent); }

.cta-body {
  font-family: var(--font-body);
  font-size: 1.1rem;
  font-weight: 300;
  line-height: 1.7;
  color: var(--text-body);
  max-width: 440px;
  opacity: 0;
  transform: translateY(20px);
}

/* --- Form --- */
.cta-form {
  flex: 1;
  min-width: 0;
  max-width: 520px;
  display: flex;
  flex-direction: column;
  gap: 1.2rem;
  opacity: 0;
  transform: translateY(20px);
}

.form-fieldset {
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 14px;
  padding: 1.5rem;
  background: rgba(255, 255, 255, 0.06);
}

.form-fieldset legend {
  font-family: var(--font-heading);
  font-size: 1.3rem;
  font-weight: 700;
  color: var(--text);
  padding: 0 0.25rem;
  letter-spacing: -0.02em;
  margin-left: -0.25rem;
}

/* Inline validation errors */
.form-group.has-error input,
.form-group.has-error select,
.form-group.has-error .tag-input-wrap,
.form-group.has-error .checkbox-group {
  border-color: var(--red) !important;
}

.form-error-msg {
  font-size: 0.7rem;
  color: var(--red);
  margin-top: 0.25rem;
  font-weight: 400;
}

/* Multi-select dropdown */
.multi-select {
  position: relative;
}

.multi-select-field {
  display: flex;
  flex-wrap: wrap;
  gap: 0.3rem;
  padding: 0.55rem 0.75rem;
  min-height: 2.5rem;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 8px;
  cursor: pointer;
  align-items: center;
  transition: border-color 0.3s ease;
}

.multi-select-field:hover {
  border-color: rgba(255, 255, 255, 0.15);
}

.multi-select.open .multi-select-field {
  border-color: var(--accent);
  border-radius: 8px 8px 0 0;
}

.multi-select-placeholder {
  font-size: 0.9rem;
  font-weight: 300;
  color: var(--text-dim);
}

.multi-select-dropdown {
  display: none;
  position: absolute;
  z-index: 100;
  top: 100%;
  left: 0;
  right: 0;
  max-height: 220px;
  overflow-y: auto;
  overscroll-behavior: contain;
  background: rgba(12, 12, 18, 0.98);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-top: none;
  border-radius: 0 0 8px 8px;
}

.multi-select.open .multi-select-dropdown {
  display: block;
}

.multi-select-dropdown .ms-option {
  padding: 0.5rem 1rem;
  font-size: 0.85rem;
  color: var(--text-body);
  cursor: pointer;
  transition: background 0.15s ease;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.multi-select-dropdown .ms-option:hover {
  background: rgba(139, 156, 247, 0.1);
}

.multi-select-dropdown .ms-option.selected {
  color: var(--accent);
  background: rgba(139, 156, 247, 0.08);
}

.multi-select-dropdown .ms-option .ms-check {
  width: 14px;
  height: 14px;
  border: 1px solid rgba(255, 255, 255, 0.2);
  border-radius: 3px;
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background 0.2s, border-color 0.2s;
}

.multi-select-dropdown .ms-option.selected .ms-check {
  background: var(--accent);
  border-color: var(--accent);
}

.multi-select-dropdown .ms-option.selected .ms-check::after {
  content: '';
  width: 6px;
  height: 6px;
  background: var(--bg);
  border-radius: 1px;
}

.multi-select-dropdown::-webkit-scrollbar { width: 4px; }
.multi-select-dropdown::-webkit-scrollbar-track { background: transparent; }
.multi-select-dropdown::-webkit-scrollbar-thumb { background: rgba(255, 255, 255, 0.1); border-radius: 4px; }

.form-group.has-error .multi-select-field {
  border-color: var(--red) !important;
}

.form-row {
  display: flex;
  gap: 1rem;
}

.form-row .form-group {
  flex: 1;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
  margin-bottom: 0.8rem;
}

.form-group label {
  font-family: var(--font-body);
  font-size: 0.65rem;
  font-weight: 500;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--text-body);
}

.form-group label small {
  font-weight: 400;
  letter-spacing: 0;
  text-transform: none;
  color: var(--text-muted);
}

.form-group input,
.form-group textarea,
.form-group select {
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 8px;
  padding: 0.75rem 1rem;
  color: var(--text);
  font-family: var(--font-body);
  font-size: 0.9rem;
  font-weight: 300;
  outline: none;
  transition: border-color 0.3s ease;
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
  border-color: var(--accent);
}

.form-group input::placeholder,
.form-group textarea::placeholder {
  color: var(--text-dim);
}

.form-group select {
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg width='10' height='6' viewBox='0 0 10 6' fill='none' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath d='M1 1l4 4 4-4' stroke='%23888' stroke-width='1.5'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 1rem center;
  padding-right: 2.5rem;
}

.form-group select option {
  background: var(--bg);
  color: var(--text);
}

/* Checkbox group */
.checkbox-group {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
}

.checkbox-group label {
  font-size: 0.8rem;
  font-weight: 400;
  color: var(--text-body);
  display: flex;
  align-items: center;
  gap: 0.3rem;
  padding: 0.35rem 0.7rem;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(255, 255, 255, 0.06);
  border-radius: 6px;
  cursor: pointer;
  transition: background 0.2s ease, border-color 0.2s ease;
  text-transform: none;
  letter-spacing: 0;
}

.checkbox-group label:hover {
  background: rgba(255, 255, 255, 0.07);
  border-color: rgba(255, 255, 255, 0.12);
}

.checkbox-group input[type="checkbox"] {
  accent-color: var(--accent);
  width: 14px;
  height: 14px;
}

.checkbox-group input[type="checkbox"]:checked + span,
.checkbox-group label:has(input:checked) {
  border-color: var(--accent);
  background: rgba(139, 156, 247, 0.1);
}

/* Searchable select */
.search-select { position: relative; }
.search-select input { width: 100%; }
.search-select .dropdown {
  position: absolute;
  z-index: 100;
  background: rgba(15, 15, 20, 0.98);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-top: none;
  border-radius: 0 0 8px 8px;
  max-height: 200px;
  overflow-y: auto;
  width: 100%;
  display: none;
}
.search-select .dropdown.open { display: block; }
.search-select .dropdown div {
  padding: 0.5rem 1rem;
  cursor: pointer;
  font-size: 0.85rem;
  color: var(--text-body);
  transition: background 0.15s ease;
}
.search-select .dropdown div:hover {
  background: rgba(139, 156, 247, 0.15);
  color: var(--text);
}

.selected-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.3rem;
  margin-top: 0.35rem;
}

/* Tags */
.tag {
  display: inline-flex;
  align-items: center;
  background: rgba(139, 156, 247, 0.2);
  border: 1px solid rgba(139, 156, 247, 0.3);
  color: var(--accent);
  padding: 0.2rem 0.6rem;
  border-radius: 100px;
  font-size: 0.75rem;
  font-weight: 500;
}

.tag button {
  background: none;
  border: none;
  color: inherit;
  margin-left: 0.3rem;
  cursor: pointer;
  padding: 0;
  font-size: 1rem;
  line-height: 1;
  opacity: 0.7;
  transition: opacity 0.2s;
}

.tag button:hover { opacity: 1; }

/* Tag input */
.tag-input-wrap {
  display: flex;
  flex-wrap: wrap;
  gap: 0.3rem;
  padding: 0.5rem 0.75rem;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 8px;
  min-height: 2.5rem;
  align-items: center;
  cursor: text;
  transition: border-color 0.3s ease;
}

.tag-input-wrap:focus-within {
  border-color: var(--accent);
}

.tag-input-wrap input {
  border: none !important;
  outline: none;
  flex: 1;
  min-width: 120px;
  padding: 0.2rem;
  background: transparent !important;
  font-size: 0.85rem;
  color: var(--text);
}

.tag-input-wrap input::placeholder {
  color: var(--text-dim);
}

/* Details / Advanced */
details {
  margin-top: 0.5rem;
}

details summary {
  cursor: pointer;
  font-family: var(--font-body);
  font-size: 0.7rem;
  font-weight: 500;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-bottom: 1rem;
  transition: color 0.2s ease;
  list-style: none;
}

details summary::-webkit-details-marker { display: none; }

details summary::before {
  content: '+ ';
  color: var(--accent);
}

details[open] summary::before {
  content: '- ';
}

details summary:hover { color: var(--text); }

/* Submit */
.form-submit-btn {
  margin-top: 0.5rem;
  padding: 0.85rem 2rem;
  font-family: var(--font-body);
  font-size: 0.8rem;
  font-weight: 500;
  letter-spacing: 0.06em;
  color: var(--bg);
  background: var(--text);
  border: none;
  border-radius: 100px;
  cursor: pointer;
  transition: background 0.4s ease, transform 0.3s ease, box-shadow 0.3s ease;
  width: 100%;
}

.form-submit-btn:hover {
  background: var(--accent);
  transform: translateY(-1px);
  box-shadow: 0 6px 24px rgba(139, 156, 247, 0.2);
}

.form-submit-btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
  transform: none;
}

/* --- Confirmation --- */
.confirmation {
  position: fixed;
  inset: 0;
  z-index: 100;
  display: none;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 2rem;
}

.confirmation.visible {
  display: flex;
}

.confirmation-inner {
  max-width: 520px;
}

.confirmation-icon {
  width: 64px;
  height: 64px;
  border-radius: 50%;
  background: rgba(139, 156, 247, 0.15);
  border: 1px solid rgba(139, 156, 247, 0.3);
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 2rem;
}

.confirmation-icon svg {
  color: var(--accent);
}

.confirmation h2 {
  font-family: var(--font-heading);
  font-size: clamp(1.8rem, 3.5vw, 2.8rem);
  font-weight: 700;
  line-height: 1.15;
  letter-spacing: -0.025em;
  color: var(--text);
  margin-bottom: 1rem;
}

.confirmation h2 .accent {
  color: var(--accent);
}

.confirmation p {
  font-size: 1.05rem;
  font-weight: 300;
  line-height: 1.7;
  color: var(--text-body);
  margin-bottom: 0.5rem;
}

.confirmation .email-highlight {
  color: var(--accent);
  font-weight: 500;
}

.confirmation .muted {
  font-size: 0.85rem;
  color: var(--text-muted);
  margin-top: 1.5rem;
}

/* --- Responsive --- */
@media (max-width: 768px) {
  .nav-links { display: none; }

  .site-header { padding: 1rem 1.5rem; }

  .hero-text {
    top: auto;
    bottom: 6rem;
    left: 1.5rem;
    right: 1.5rem;
    transform: none;
    text-align: left;
    width: auto;
  }

  .hero-heading {
    font-size: clamp(1.8rem, 7vw, 2.5rem);
  }

  .hero-heading .line {
    white-space: normal;
  }

  .hero-ctas {
    justify-content: flex-start;
    flex-direction: column;
  }

  .hero-ctas .cta-btn {
    text-align: center;
  }

  .section {
    padding: 4rem 1.5rem;
    min-height: auto;
  }

  .cta-section {
    padding: 4rem 1.5rem;
  }

  .cta-split {
    flex-direction: column;
    gap: 2rem;
  }

  .cta-left {
    position: static;
    flex: none;
  }

  .cta-form {
    max-width: 100%;
  }

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

  .form-fieldset {
    padding: 1rem;
  }

  .scroll-hint {
    bottom: 1.5rem;
  }

  .checkbox-group {
    gap: 0.3rem;
  }
}