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

:root {
  --cream: #f7f3ee;
  --cream-dark: #ede8e1;
  --sage: #3d4f42;
  --sage-mid: #5a7060;
  --sage-light: #d0d9d3;
  --terra: #a05a3c;
  --terra-light: #c47d5c;
  --ink: #1a1a18;
  --ink-mid: #4a4a46;
  --ink-light: #7a7a74;
  --white: #ffffff;

  --font-display: 'Cormorant Garamond', Georgia, serif;
  --font-body: 'DM Sans', system-ui, sans-serif;

  --space-xs: 0.5rem;
  --space-sm: 1rem;
  --space-md: 1.5rem;
  --space-lg: 2.5rem;
  --space-xl: 4rem;
  --space-2xl: 6rem;
}

html {
  scroll-behavior: smooth;
  font-size: 16px;
}

body {
  background-color: var(--cream);
  color: var(--ink);
  font-family: var(--font-body);
  font-weight: 400;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

/* ── Typography ── */
h1, h2, h3, h4 {
  font-family: var(--font-display);
  font-weight: 500;
  line-height: 1.15;
  letter-spacing: -0.01em;
}

/* ── Navigation ── */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  padding: 1.5rem 2rem;
}

.nav__inner {
  max-width: 1100px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.nav__logo {
  font-family: var(--font-display);
  font-size: 1.75rem;
  font-weight: 500;
  letter-spacing: -0.03em;
  color: var(--ink);
  text-decoration: none;
}

.nav__tag {
  font-size: 0.7rem;
  font-weight: 500;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--ink-light);
}

/* ── Hero ── */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding: 10rem 2rem 6rem;
  position: relative;
  overflow: hidden;
}

.hero__inner {
  max-width: 900px;
  margin: 0 auto;
  position: relative;
  z-index: 2;
}

.hero__label {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  font-size: 0.72rem;
  font-weight: 500;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--terra);
  margin-bottom: 2rem;
}

.hero__label-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--terra);
  display: inline-block;
}

.hero__headline {
  font-size: clamp(3rem, 7vw, 5.5rem);
  font-weight: 400;
  color: var(--ink);
  margin-bottom: 2rem;
  max-width: 14ch;
}

.hero__sub {
  font-size: clamp(1.05rem, 1.8vw, 1.2rem);
  color: var(--ink-mid);
  max-width: 46ch;
  line-height: 1.7;
  font-weight: 300;
}

.hero__texture {
  position: absolute;
  top: 0;
  right: 0;
  bottom: 0;
  width: 45%;
  background: linear-gradient(160deg, var(--sage-light) 0%, transparent 70%);
  opacity: 0.25;
  z-index: 1;
}

/* ── Manifesto ── */
.manifesto {
  padding: var(--space-xl) 2rem;
  background: var(--cream-dark);
}

.manifesto__inner {
  max-width: 680px;
  margin: 0 auto;
  text-align: center;
}

.manifesto__rule {
  width: 40px;
  height: 1px;
  background: var(--ink-light);
  margin: 0 auto var(--space-md);
  opacity: 0.4;
}

.manifesto__quote {
  font-family: var(--font-display);
  font-size: clamp(1.3rem, 2.5vw, 1.7rem);
  font-style: italic;
  color: var(--ink-mid);
  line-height: 1.5;
  font-weight: 400;
  margin-bottom: var(--space-md);
}

/* ── Why ── */
.why {
  padding: var(--space-2xl) 2rem;
}

.why__inner {
  max-width: 1100px;
  margin: 0 auto;
}

.why__header {
  max-width: 36ch;
  margin-bottom: var(--space-xl);
}

.why__eyebrow {
  display: block;
  font-size: 0.7rem;
  font-weight: 500;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--terra);
  margin-bottom: 1.2rem;
}

.why__title {
  font-size: clamp(2rem, 4vw, 3rem);
  color: var(--ink);
}

.why__body {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-xl) var(--space-2xl);
  max-width: 800px;
  margin-bottom: var(--space-xl);
}

.why__body p {
  color: var(--ink-mid);
  line-height: 1.75;
  font-size: 0.97rem;
}

.why__signals {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-lg);
}

.why__signal-icon {
  color: var(--sage-mid);
  margin-bottom: 1rem;
}

.why__signal h3 {
  font-family: var(--font-body);
  font-size: 1rem;
  font-weight: 500;
  color: var(--ink);
  margin-bottom: 0.6rem;
}

.why__signal p {
  font-size: 0.875rem;
  color: var(--ink-light);
  line-height: 1.6;
}

/* ── Approach ── */
.approach {
  padding: var(--space-2xl) 2rem;
  background: var(--sage);
  color: var(--cream);
}

.approach__inner {
  max-width: 1100px;
  margin: 0 auto;
}

.approach__header {
  margin-bottom: var(--space-xl);
}

.approach__eyebrow {
  display: block;
  font-size: 0.7rem;
  font-weight: 500;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--terra-light);
  margin-bottom: 1.2rem;
}

.approach__title {
  font-size: clamp(2rem, 4vw, 3rem);
  color: var(--cream);
}

.approach__grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-lg);
}

.approach__card {
  padding: 1.5rem;
  border: 1px solid rgba(255,255,255,0.1);
  border-radius: 2px;
}

.approach__card-num {
  font-family: var(--font-display);
  font-size: 2.5rem;
  font-weight: 400;
  color: var(--sage-light);
  opacity: 0.4;
  margin-bottom: 1rem;
}

.approach__card h3 {
  font-family: var(--font-body);
  font-size: 0.95rem;
  font-weight: 500;
  color: var(--cream);
  margin-bottom: 0.75rem;
}

.approach__card p {
  font-size: 0.825rem;
  color: var(--cream-dark);
  line-height: 1.65;
  opacity: 0.8;
}

/* ── Promise ── */
.promise {
  padding: var(--space-2xl) 2rem;
}

.promise__inner {
  max-width: 1100px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-2xl);
  align-items: center;
}

.promise__title {
  font-size: clamp(1.8rem, 3.5vw, 2.6rem);
  color: var(--ink);
  margin-bottom: var(--space-md);
}

.promise__text {
  color: var(--ink-mid);
  line-height: 1.75;
  font-size: 0.97rem;
  margin-bottom: var(--space-md);
}

.promise__values {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

.promise__value {
  display: flex;
  align-items: center;
  gap: 1rem;
  font-size: 0.9rem;
  color: var(--ink-mid);
}

.promise__value-check {
  width: 28px;
  height: 28px;
  background: var(--sage);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--cream);
  flex-shrink: 0;
}

/* ── Closing ── */
.closing {
  padding: var(--space-2xl) 2rem;
  background: var(--cream-dark);
  text-align: center;
}

.closing__inner {
  max-width: 700px;
  margin: 0 auto;
}

.closing__title {
  font-size: clamp(2.5rem, 5vw, 4rem);
  color: var(--ink);
  margin-bottom: var(--space-md);
}

.closing__sub {
  font-size: 1rem;
  color: var(--ink-mid);
  max-width: 42ch;
  margin: 0 auto;
  line-height: 1.7;
}

/* ── CTA Button ── */
.closing__cta {
  margin-top: var(--space-lg);
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 0.75rem;
}

.btn-signup-hero {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  padding: 1rem 2rem;
  background: var(--sage);
  color: var(--cream);
  border: none;
  border-radius: 2px;
  font-family: var(--font-body);
  font-size: 1rem;
  font-weight: 500;
  cursor: pointer;
  transition: background 0.2s ease, transform 0.15s ease;
  letter-spacing: 0.01em;
}

.btn-signup-hero:hover {
  background: var(--sage-mid);
  transform: translateY(-1px);
}

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

.btn-signup-hero svg {
  transition: transform 0.2s ease;
}

.btn-signup-hero:hover svg {
  transform: translateX(2px);
}

.closing__cta-sub {
  font-size: 0.825rem;
  color: var(--ink-light);
  margin-top: 0.25rem;
}

/* ── Modal ── */
.modal {
  position: fixed;
  inset: 0;
  z-index: 1000;
  display: none;
  align-items: center;
  justify-content: center;
  padding: 1rem;
}

.modal--open {
  display: flex;
}

.modal__backdrop {
  position: absolute;
  inset: 0;
  background: rgba(26, 26, 24, 0.6);
  backdrop-filter: blur(4px);
}

.modal__card {
  position: relative;
  background: var(--cream);
  border-radius: 4px;
  padding: 2.5rem;
  max-width: 500px;
  width: 100%;
  box-shadow: 0 20px 60px rgba(26, 26, 24, 0.2);
}

.modal__close {
  position: absolute;
  top: 1.25rem;
  right: 1.25rem;
  background: none;
  border: none;
  color: var(--ink-light);
  cursor: pointer;
  padding: 0.25rem;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: color 0.2s;
}

.modal__close:hover { color: var(--ink); }

.modal__header { margin-bottom: 1.75rem; }

.modal__eyebrow {
  display: block;
  font-size: 0.7rem;
  font-weight: 500;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--terra);
  margin-bottom: 0.75rem;
}

.modal__title {
  font-family: var(--font-display);
  font-size: clamp(1.5rem, 3vw, 2rem);
  color: var(--ink);
  line-height: 1.2;
  margin-bottom: 0.75rem;
}

.modal__sub {
  font-size: 0.9rem;
  color: var(--ink-mid);
  line-height: 1.65;
}

/* ── Form ── */
.modal__form {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

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

.form-label {
  font-size: 0.8rem;
  font-weight: 500;
  color: var(--ink-mid);
  letter-spacing: 0.03em;
}

.form-input {
  padding: 0.85rem 1rem;
  background: var(--white);
  border: 1px solid var(--cream-dark);
  border-radius: 2px;
  font-family: var(--font-body);
  font-size: 0.95rem;
  color: var(--ink);
  transition: border-color 0.2s;
  outline: none;
}

.form-input:focus {
  border-color: var(--sage);
  box-shadow: 0 0 0 3px rgba(61, 79, 66, 0.08);
}

.form-input::placeholder { color: var(--ink-light); }

.form-submit {
  padding: 1rem 1.5rem;
  background: var(--sage);
  color: var(--cream);
  border: none;
  border-radius: 2px;
  font-family: var(--font-body);
  font-size: 1rem;
  font-weight: 500;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  transition: background 0.2s;
  width: 100%;
}

.form-submit:hover:not(:disabled) { background: var(--sage-mid); }
.form-submit:disabled { opacity: 0.7; cursor: not-allowed; }

.btn-loading {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
}

.spinner {
  animation: spin 0.8s linear infinite;
}

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

.form-error {
  font-size: 0.85rem;
  color: var(--terra);
  padding: 0.75rem 1rem;
  background: rgba(160, 90, 60, 0.08);
  border-radius: 2px;
  border-left: 3px solid var(--terra);
}

.form-success {
  font-size: 0.9rem;
  color: var(--sage);
  padding: 0.75rem 1rem;
  background: rgba(61, 79, 66, 0.08);
  border-radius: 2px;
  border-left: 3px solid var(--sage);
  line-height: 1.5;
}

.modal__fine-print {
  margin-top: 1rem;
  font-size: 0.75rem;
  color: var(--ink-light);
  line-height: 1.5;
  text-align: center;
}

/* ── Footer ── */
.footer {
  padding: var(--space-xl) 2rem;
  border-top: 1px solid var(--cream-dark);
}

.footer__inner {
  max-width: 1100px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.footer__logo {
  font-family: var(--font-display);
  font-size: 1.5rem;
  font-weight: 500;
  color: var(--ink);
}

.footer__tagline {
  font-size: 0.8rem;
  color: var(--ink-light);
  margin-top: 0.3rem;
}

.footer__note {
  font-size: 0.75rem;
  color: var(--ink-light);
  letter-spacing: 0.05em;
}

/* ── Responsive ── */
@media (max-width: 900px) {
  .approach__grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 768px) {
  .hero {
    padding: 8rem 1.5rem 4rem;
    min-height: 90vh;
  }

  .hero__headline {
    max-width: none;
  }

  .why__body {
    grid-template-columns: 1fr;
    gap: var(--space-md);
  }

  .why__signals {
    grid-template-columns: 1fr;
    gap: var(--space-lg);
  }

  .approach__grid {
    grid-template-columns: 1fr;
  }

  .promise__inner {
    grid-template-columns: 1fr;
    gap: var(--space-xl);
  }

  .footer__inner {
    flex-direction: column;
    gap: 1rem;
    text-align: center;
  }
}

@media (max-width: 480px) {
  html { font-size: 15px; }
  .nav { padding: 1rem 1.25rem; }
  .hero { padding: 7rem 1.25rem 3.5rem; }
  .manifesto, .why, .approach, .promise, .closing, .footer {
    padding-left: 1.25rem;
    padding-right: 1.25rem;
  }
}