/* ============================================================
   Talos Marketing Site — styles.css
   Self-contained, no external CDN or framework.
   System font stack; responsive 375px / 768px / desktop.
   ============================================================ */

/* ---------- Reset & base ---------- */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

:root {
  /* Colour tokens */
  --color-bg:          #0b0d0c;
  --color-surface:     #121614;
  --color-surface-2:   #181d1b;
  --color-border:      #2c352f;
  --color-text:        #eef2ed;
  --color-muted:       #98a39b;
  --color-accent:      #38b26f;
  --color-accent-glow: rgba(56, 178, 111, 0.16);
  --color-accent-2:    #f4c76b;
  --color-white:       #ffffff;
  --color-success:     #22c55e;
  --color-error:       #ef4444;

  /* Typography */
  --font-stack: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI",
                Roboto, "Helvetica Neue", Arial, sans-serif;
  --font-mono:  ui-monospace, SFMono-Regular, Consolas, "Liberation Mono",
                Menlo, monospace;

  /* Spacing scale */
  --space-1:  0.25rem;
  --space-2:  0.5rem;
  --space-3:  0.75rem;
  --space-4:  1rem;
  --space-5:  1.25rem;
  --space-6:  1.5rem;
  --space-8:  2rem;
  --space-10: 2.5rem;
  --space-12: 3rem;
  --space-16: 4rem;
  --space-20: 5rem;
  --space-24: 6rem;

  /* Layout */
  --max-width: 1080px;
  --radius:    0.5rem;
  --radius-sm: 0.25rem;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-stack);
  background-color: var(--color-bg);
  color: var(--color-text);
  line-height: 1.6;
  font-size: 1rem;
  -webkit-font-smoothing: antialiased;
}

body::selection {
  background: rgba(56, 178, 111, 0.3);
}

a {
  color: var(--color-accent-2);
  text-decoration: underline;
  text-underline-offset: 3px;
}

a:hover {
  color: var(--color-white);
}

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

/* ---------- Layout helpers ---------- */
.container {
  width: 100%;
  max-width: var(--max-width);
  margin-inline: auto;
  padding-inline: var(--space-6);
}

.section {
  padding-block: var(--space-20);
}

.section--alt {
  background-color: var(--color-surface);
}

/* ---------- Navigation ---------- */
.nav {
  position: sticky;
  top: 0;
  z-index: 100;
  background-color: rgba(11, 13, 12, 0.9);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--color-border);
}

.nav__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-block: var(--space-4);
}

.nav__logo {
  font-size: 1.25rem;
  font-weight: 700;
  letter-spacing: 0;
  color: var(--color-white);
  text-decoration: none;
}

.nav__logo span {
  color: var(--color-accent-2);
}

.nav__links {
  display: flex;
  align-items: center;
  gap: var(--space-6);
  list-style: none;
}

.nav__links a {
  color: var(--color-muted);
  text-decoration: none;
  font-size: 0.9rem;
  transition: color 0.15s;
}

.nav__links a:hover {
  color: var(--color-white);
}

.nav__cta {
  font-size: 0.875rem !important;
  font-weight: 600;
  color: var(--color-accent-2) !important;
  border: 1px solid var(--color-accent);
  border-radius: var(--radius-sm);
  padding: var(--space-2) var(--space-4) !important;
  transition: background 0.15s, color 0.15s !important;
}

.nav__cta:hover {
  background-color: var(--color-accent);
  color: var(--color-white) !important;
}

/* Mobile: hide nav links on small screens */
@media (max-width: 640px) {
  .nav__links { display: none; }
}

/* ---------- Hero ---------- */
.hero {
  padding-top: var(--space-8);
  padding-bottom: var(--space-6);
}

.hero__layout {
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(340px, 0.95fr);
  gap: var(--space-12);
  align-items: center;
}

.hero__content {
  text-align: left;
}

.hero__eyebrow {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0;
  text-transform: uppercase;
  color: var(--color-accent-2);
  background: var(--color-accent-glow);
  border: 1px solid rgba(56, 178, 111, 0.32);
  border-radius: 100px;
  padding: var(--space-1) var(--space-4);
  margin-bottom: var(--space-6);
}

.hero__headline {
  font-size: clamp(2.35rem, 5vw, 3.75rem);
  font-weight: 800;
  letter-spacing: 0;
  line-height: 1.08;
  color: var(--color-white);
  margin-bottom: var(--space-6);
}

.hero__tagline {
  font-size: clamp(1rem, 2vw, 1.18rem);
  color: var(--color-muted);
  max-width: 620px;
  margin-bottom: var(--space-8);
  line-height: 1.5;
}

.hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-3);
  align-items: center;
}

.hero__sub {
  font-size: 0.875rem;
  color: var(--color-muted);
  margin-top: var(--space-4);
}

.hero__media {
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  overflow: hidden;
  background: var(--color-surface-2);
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.32);
}

.hero__media img {
  width: 100%;
  min-height: 320px;
  object-fit: cover;
}

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  font-family: var(--font-stack);
  font-size: 1rem;
  font-weight: 600;
  border: none;
  border-radius: var(--radius-sm);
  cursor: pointer;
  text-decoration: none;
  transition: opacity 0.15s, background 0.15s, transform 0.1s;
  padding: var(--space-3) var(--space-6);
  line-height: 1;
}

.btn:active { transform: scale(0.98); }

.btn--primary {
  background: var(--color-accent);
  color: #07100b;
}

.btn--primary:hover {
  background: var(--color-accent-2);
  color: #120d03;
}

.btn--ghost {
  background: transparent;
  color: var(--color-muted);
  border: 1px solid var(--color-border);
}

.btn--ghost:hover {
  color: var(--color-white);
  border-color: var(--color-accent-2);
}

.btn--full { width: 100%; }
.btn--lg   { font-size: 1.1rem; padding: var(--space-4) var(--space-8); }
.btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
  transform: none;
}

/* ---------- Capability grid ---------- */
.capabilities__grid {
  display: grid;
  gap: var(--space-6);
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  margin-top: var(--space-12);
}

.capability-card {
  background: var(--color-surface-2);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: var(--space-8);
  transition: border-color 0.2s, box-shadow 0.2s;
}

.capability-card:hover {
  border-color: var(--color-accent);
  box-shadow: 0 0 0 1px var(--color-accent-glow);
}

.capability-card__icon {
  font-size: 1.75rem;
  margin-bottom: var(--space-4);
  line-height: 1;
}

.capability-card__title {
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--color-white);
  margin-bottom: var(--space-2);
}

.capability-card__body {
  font-size: 0.9rem;
  color: var(--color-muted);
  line-height: 1.6;
}

/* ---------- Family/work tracks ---------- */
.tracks__grid {
  display: grid;
  gap: var(--space-6);
  grid-template-columns: repeat(2, minmax(0, 1fr));
  margin-top: var(--space-12);
}

.track-card {
  background: var(--color-surface-2);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: var(--space-8);
}

.track-card__label {
  display: inline-flex;
  align-items: center;
  color: #07100b;
  background: var(--color-accent-2);
  border-radius: var(--radius-sm);
  font-size: 0.75rem;
  font-weight: 800;
  padding: var(--space-1) var(--space-3);
  margin-bottom: var(--space-4);
}

.track-card__title {
  font-size: 1.35rem;
  line-height: 1.25;
  color: var(--color-white);
  margin-bottom: var(--space-5);
}

.track-card__list {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
  color: var(--color-muted);
  font-size: 0.93rem;
  padding-left: var(--space-5);
}

.track-card__list li::marker {
  color: var(--color-accent);
}

.limits-panel {
  margin-top: var(--space-10);
  border: 1px solid var(--color-border);
  border-left: 4px solid var(--color-accent-2);
  border-radius: var(--radius);
  background: var(--color-surface-2);
  color: var(--color-muted);
  padding: var(--space-6);
  max-width: 760px;
}

.limits-panel__kicker {
  color: var(--color-accent-2);
  font-size: 0.78rem;
  font-weight: 800;
  margin-bottom: var(--space-2);
  text-transform: uppercase;
}

/* ---------- Section headings ---------- */
.section-label {
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0;
  text-transform: uppercase;
  color: var(--color-accent-2);
  margin-bottom: var(--space-3);
}

.section-heading {
  font-size: clamp(1.75rem, 4vw, 2.5rem);
  font-weight: 800;
  letter-spacing: 0;
  color: var(--color-white);
  line-height: 1.15;
  margin-bottom: var(--space-4);
}

.section-body {
  font-size: 1rem;
  color: var(--color-muted);
  max-width: 600px;
  line-height: 1.7;
}

/* ---------- Pricing section ---------- */
.pricing__grid {
  display: grid;
  gap: var(--space-6);
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  margin-top: var(--space-12);
}

.pricing-card {
  background: var(--color-surface-2);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: var(--space-8);
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
}

.pricing-card--featured {
  border-color: var(--color-accent);
  background: var(--color-surface-2);
}

.pricing-card__badge {
  align-self: flex-start;
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0;
  text-transform: uppercase;
  color: var(--color-accent-2);
  background: var(--color-accent-glow);
  border-radius: 100px;
  padding: var(--space-1) var(--space-3);
}

.pricing-card__name {
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--color-white);
}

.pricing-card__price {
  font-size: 0.875rem;
  color: var(--color-muted);
  line-height: 1.5;
}

.pricing-card__price strong {
  color: var(--color-text);
}

.pricing-card__list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
  font-size: 0.875rem;
  color: var(--color-muted);
  flex: 1;
}

.pricing-card__list li::before {
  content: "— ";
  color: var(--color-accent-2);
}

.pricing-note {
  margin-top: var(--space-8);
  font-size: 0.8rem;
  color: var(--color-muted);
  line-height: 1.6;
  max-width: 640px;
}

/* ---------- Waitlist form ---------- */
.waitlist {
  max-width: 540px;
  margin-inline: auto;
  text-align: center;
}

.form {
  margin-top: var(--space-8);
  text-align: left;
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
}

.form__group {
  display: flex;
  flex-direction: column;
  gap: var(--space-1);
}

.form__label {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--color-text);
}

.form__input,
.form__select,
.form__textarea {
  font-family: var(--font-stack);
  font-size: 0.95rem;
  color: var(--color-text);
  background: var(--color-surface-2);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  padding: var(--space-3) var(--space-4);
  width: 100%;
  transition: border-color 0.15s, box-shadow 0.15s;
  outline: none;
}

.form__textarea {
  min-height: 9rem;
  resize: vertical;
  line-height: 1.5;
}

.form__input::placeholder,
.form__textarea::placeholder {
  color: var(--color-muted);
}

.form__input:focus,
.form__select:focus,
.form__textarea:focus {
  border-color: var(--color-accent);
  box-shadow: 0 0 0 3px var(--color-accent-glow);
}

.form__input.error {
  border-color: var(--color-error);
}

/* Honeypot field — hidden from real users, visible to bots */
.form__honeypot {
  display: none !important;
  visibility: hidden !important;
  position: absolute !important;
  left: -9999px !important;
}

.form__hint {
  font-size: 0.78rem;
  color: var(--color-muted);
  margin-top: var(--space-1);
}

.form__error-msg {
  font-size: 0.82rem;
  color: var(--color-error);
  margin-top: var(--space-1);
  display: none;
}

.form__error-msg.visible { display: block; }

.form__privacy {
  font-size: 0.78rem;
  color: var(--color-muted);
  text-align: center;
  line-height: 1.5;
}

/* ---------- Status messages ---------- */
.status-msg {
  border-radius: var(--radius-sm);
  padding: var(--space-4);
  font-size: 0.9rem;
  font-weight: 500;
  text-align: center;
  display: none;
}

.status-msg.visible { display: block; }

.status-msg--success {
  background: rgba(34, 197, 94, 0.12);
  border: 1px solid rgba(34, 197, 94, 0.35);
  color: var(--color-success);
}

.status-msg--error {
  background: rgba(239, 68, 68, 0.12);
  border: 1px solid rgba(239, 68, 68, 0.35);
  color: var(--color-error);
}

/* ---------- Privacy badge ---------- */
.privacy-strip {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-4) var(--space-8);
  align-items: center;
  justify-content: center;
  margin-top: var(--space-12);
  padding: var(--space-6);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  background: var(--color-surface-2);
}

.privacy-strip__item {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  font-size: 0.85rem;
  color: var(--color-muted);
}

.privacy-strip__item::before {
  content: "";
  width: 0.4rem;
  height: 0.4rem;
  border-radius: 50%;
  background: var(--color-accent-2);
  color: var(--color-accent-2);
}

/* ---------- Footer ---------- */
.footer {
  border-top: 1px solid var(--color-border);
  padding-block: var(--space-8);
  text-align: center;
}

.footer__text {
  font-size: 0.82rem;
  color: var(--color-muted);
  line-height: 1.6;
}

/* ---------- Responsive adjustments ---------- */
@media (max-width: 768px) {
  .section { padding-block: var(--space-16); }
  .hero    { padding-top: var(--space-8); padding-bottom: var(--space-8); }
  .container { padding-inline: var(--space-5); }
  .hero__layout,
  .tracks__grid {
    grid-template-columns: 1fr;
  }
  .hero__layout {
    gap: var(--space-6);
  }
  .hero__media {
    order: -1;
  }
  .hero__media img {
    min-height: 220px;
  }
}

@media (max-width: 480px) {
  .section { padding-block: var(--space-12); }
  .hero    { padding-top: var(--space-6); padding-bottom: var(--space-6); }
  .container { padding-inline: var(--space-4); }
  .pricing__grid,
  .capabilities__grid,
  .tracks__grid { grid-template-columns: 1fr; }
  .hero__headline {
    font-size: 2.05rem;
  }
  .hero__tagline {
    font-size: 0.95rem;
    margin-bottom: var(--space-5);
  }
  .hero__eyebrow {
    font-size: 0.68rem;
    margin-bottom: var(--space-4);
  }
  .hero__media img {
    min-height: 180px;
  }
  .hero__sub {
    font-size: 0.78rem;
  }
  .hero__actions .btn {
    width: 100%;
  }
}