/* ==========================================================================
   shared.css — Becoming Her
   CSS variables, reset, typography, navigation, footer, buttons, utilities
   ========================================================================== */

/* ---------- 1. CSS Variables ---------- */
:root {
  /* Colors */
  --color-bordeaux: #8b1a1a;
  --color-bordeaux-hover: #701414;
  --color-bg: #ffffff;
  --color-bg-grey: #f7f7f7;
  --color-bg-cream: #faf8f5;
  --color-bg-dark: #0e0e0e;
  --color-heading: #0e0e0e;
  --color-text: #3a3a3a;
  --color-text-muted: #6a6a6a;
  --color-text-on-dark: #ffffff;
  --color-border: #e5e5e5;
  --color-border-dark: rgba(255, 255, 255, 0.18);

  /* Typography */
  --font-serif: "Cormorant Garamond", Georgia, serif;
  --font-sans: "Barlow", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;

  /* Spacing */
  --space-xs: 0.5rem;
  --space-sm: 1rem;
  --space-md: 1.5rem;
  --space-lg: 2.5rem;
  --space-xl: 4rem;
  --space-2xl: 6rem;
  --space-3xl: 8rem;

  /* Layout */
  --container-max: 1240px;
  --container-narrow: 650px;
  --container-padding: 1.5rem;
  --nav-height: 76px;

  /* Motion */
  --ease-out: cubic-bezier(0.22, 1, 0.36, 1);
  --transition: 0.4s var(--ease-out);
}

/* ---------- 2. Reset ---------- */
*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: var(--font-sans);
  font-size: 17px;
  line-height: 1.7;
  color: var(--color-text);
  background-color: var(--color-bg);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

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

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

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

ul, ol {
  list-style: none;
}

/* ---------- 3. Typography ---------- */
h1, h2, h3, h4 {
  font-family: var(--font-serif);
  color: var(--color-heading);
  font-weight: 700;
  line-height: 1.15;
  letter-spacing: -0.005em;
  text-wrap: balance;
}

.h-display {
  font-family: var(--font-serif);
  font-size: clamp(2.8rem, 7vw, 5.2rem);
  font-weight: 700;
  letter-spacing: -0.015em;
  line-height: 1.02;
}

.h-section {
  font-family: var(--font-serif);
  font-size: clamp(2.1rem, 4vw, 3.3rem);
  font-weight: 700;
  letter-spacing: -0.01em;
  line-height: 1.15;
}

.h-card {
  font-family: var(--font-serif);
  font-size: 1.35rem;
  font-weight: 700;
  letter-spacing: -0.01em;
  color: var(--color-heading);
}

/* Italic accent inside headings — used to highlight a phrase in bordeaux */
.serif-italic,
h1 em, h2 em, h3 em, h4 em {
  font-family: var(--font-serif);
  font-style: italic;
  font-weight: 400;
  letter-spacing: 0;
  color: var(--color-bordeaux);
}

.subhead {
  font-family: var(--font-serif);
  font-style: italic;
  font-weight: 400;
  font-size: clamp(1.4rem, 2.4vw, 2rem);
  color: var(--color-bordeaux);
  line-height: 1.3;
}

.eyebrow {
  font-family: var(--font-sans);
  font-size: 0.78rem;
  font-weight: 500;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--color-bordeaux);
}

p {
  text-wrap: pretty;
}

p + p {
  margin-top: 1em;
}

/* ---------- 4. Layout primitives ---------- */
.container {
  width: 100%;
  max-width: var(--container-max);
  margin-inline: auto;
  padding-inline: var(--container-padding);
}

.container-narrow {
  width: 100%;
  max-width: var(--container-narrow);
  margin-inline: auto;
  padding-inline: var(--container-padding);
}

.section {
  padding-block: clamp(4rem, 8vw, 7rem);
}

.section--grey {
  background-color: var(--color-bg-grey);
}

.section--cream {
  background-color: var(--color-bg-cream);
}

.section--bordeaux {
  background-color: var(--color-bordeaux);
  color: var(--color-text-on-dark);
}

.section--bordeaux h1,
.section--bordeaux h2,
.section--bordeaux h3 {
  color: var(--color-text-on-dark);
}

.section--dark {
  background-color: var(--color-bg-dark);
  color: var(--color-text-on-dark);
}

.section--dark h1,
.section--dark h2,
.section--dark h3 {
  color: var(--color-text-on-dark);
}

/* ---------- 5. Navigation ---------- */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  height: var(--nav-height);
  background-color: rgba(255, 255, 255, 0.92);
  backdrop-filter: saturate(160%) blur(14px);
  -webkit-backdrop-filter: saturate(160%) blur(14px);
  border-bottom: 1px solid transparent;
  transition: border-color var(--transition), background-color var(--transition);
}

.nav.is-scrolled {
  border-bottom-color: var(--color-border);
  background-color: rgba(255, 255, 255, 0.96);
}

.nav__inner {
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 2rem;
}

.nav__logo {
  font-family: var(--font-serif);
  font-style: italic;
  font-weight: 500;
  font-size: 1.7rem;
  color: var(--color-heading);
  letter-spacing: -0.01em;
  line-height: 1;
}

.nav__links {
  display: flex;
  align-items: center;
  gap: 2.4rem;
}

.nav__link {
  font-size: 0.94rem;
  font-weight: 500;
  color: var(--color-heading);
  position: relative;
  transition: color var(--transition);
}

.nav__link::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: -6px;
  height: 1px;
  background-color: var(--color-bordeaux);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform var(--transition);
}

.nav__link:hover {
  color: var(--color-bordeaux);
}

.nav__link:hover::after,
.nav__link.is-active::after {
  transform: scaleX(1);
}

.nav__burger {
  display: none;
  width: 36px;
  height: 36px;
  position: relative;
  z-index: 110;
}

.nav__burger span {
  position: absolute;
  left: 6px;
  right: 6px;
  height: 1.5px;
  background-color: var(--color-heading);
  transition: transform var(--transition), opacity 0.2s, top var(--transition);
}

.nav__burger span:nth-child(1) { top: 13px; }
.nav__burger span:nth-child(2) { top: 50%; transform: translateY(-50%); }
.nav__burger span:nth-child(3) { top: 22px; }

.nav__burger.is-open span:nth-child(1) {
  top: 50%;
  transform: translateY(-50%) rotate(45deg);
}
.nav__burger.is-open span:nth-child(2) {
  opacity: 0;
}
.nav__burger.is-open span:nth-child(3) {
  top: 50%;
  transform: translateY(-50%) rotate(-45deg);
}

/* Mobile menu drawer */
.nav__drawer {
  position: fixed;
  inset: 0;
  background-color: var(--color-bg);
  padding: calc(var(--nav-height) + 2rem) 2rem 2rem;
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
  transform: translateX(100%);
  transition: transform 0.45s var(--ease-out);
  z-index: 105;
  visibility: hidden;
}

.nav__drawer.is-open {
  transform: translateX(0);
  visibility: visible;
}

.nav__drawer .nav__link {
  font-size: 1.6rem;
  font-family: var(--font-serif);
  font-style: italic;
  font-weight: 500;
}

/* ---------- 6. Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.95rem 1.7rem;
  font-family: var(--font-sans);
  font-size: 0.94rem;
  font-weight: 500;
  letter-spacing: 0.01em;
  border-radius: 2px;
  border: 1px solid transparent;
  cursor: pointer;
  transition: background-color var(--transition), color var(--transition),
              border-color var(--transition), transform 0.2s var(--ease-out);
  white-space: nowrap;
}

.btn:hover {
  transform: translateY(-1px);
}

.btn--primary {
  background-color: var(--color-bordeaux);
  color: #ffffff;
}

.btn--primary:hover {
  background-color: var(--color-bordeaux-hover);
}

.btn--ghost-light {
  background-color: transparent;
  color: var(--color-heading);
  border-color: var(--color-heading);
}

.btn--ghost-light:hover {
  background-color: var(--color-heading);
  color: #ffffff;
}

.btn--ghost-dark {
  background-color: transparent;
  color: #ffffff;
  border-color: rgba(255, 255, 255, 0.6);
}

.btn--ghost-dark:hover {
  background-color: #ffffff;
  color: var(--color-bordeaux);
  border-color: #ffffff;
}

.btn--white {
  background-color: #ffffff;
  color: var(--color-bordeaux);
}

.btn--white:hover {
  background-color: #f5f5f5;
}

.btn--lg {
  padding: 1.1rem 2.2rem;
  font-size: 1rem;
}

.btn--nav {
  padding: 0.6rem 1.1rem;
  font-size: 0.88rem;
}

.text-link {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  color: var(--color-text);
  font-size: 0.95rem;
  border-bottom: 1px solid var(--color-border);
  padding-bottom: 2px;
  transition: color var(--transition), border-color var(--transition);
}

.text-link:hover {
  color: var(--color-bordeaux);
  border-bottom-color: var(--color-bordeaux);
}

/* ---------- 7. Footer ---------- */
.footer {
  background-color: var(--color-bg-dark);
  color: rgba(255, 255, 255, 0.72);
  padding-block: 4rem 2rem;
}

.footer__inner {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 3rem;
  align-items: start;
}

.footer__logo {
  font-family: var(--font-serif);
  font-style: italic;
  font-weight: 500;
  font-size: 2rem;
  color: #ffffff;
  margin-bottom: 0.6rem;
}

.footer__tagline {
  font-family: var(--font-serif);
  font-style: italic;
  font-size: 1.05rem;
  color: rgba(255, 255, 255, 0.55);
  max-width: 28ch;
}

.footer__links {
  display: flex;
  flex-direction: column;
  gap: 0.7rem;
  text-align: right;
}

.footer__links a {
  font-size: 0.92rem;
  color: rgba(255, 255, 255, 0.72);
  transition: color var(--transition);
}

.footer__links a:hover {
  color: #ffffff;
}

.footer__bottom {
  margin-top: 3rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--color-border-dark);
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.82rem;
  color: rgba(255, 255, 255, 0.45);
}

/* ---------- 8. Scroll-reveal ---------- */
.reveal {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity 0.8s var(--ease-out), transform 0.8s var(--ease-out);
  will-change: opacity, transform;
}

.reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}

.reveal--delay-1 { transition-delay: 0.08s; }
.reveal--delay-2 { transition-delay: 0.16s; }
.reveal--delay-3 { transition-delay: 0.24s; }

@media (prefers-reduced-motion: reduce) {
  .reveal {
    opacity: 1;
    transform: none;
    transition: none;
  }
  html {
    scroll-behavior: auto;
  }
}

/* ---------- 9. Responsive nav ---------- */
@media (max-width: 860px) {
  .nav__links {
    display: none;
  }
  .nav__burger {
    display: block;
  }
}

/* ---------- 10. Section header utility ---------- */
.section-header {
  max-width: 720px;
  margin-bottom: 3rem;
}

.section-header--center {
  margin-inline: auto;
  text-align: center;
}

.section-header__lead {
  margin-top: 1.2rem;
  font-size: 1.05rem;
  color: var(--color-text);
  max-width: 60ch;
}

.section-header--center .section-header__lead {
  margin-inline: auto;
}

/* Footer responsive */
@media (max-width: 640px) {
  .footer__inner {
    grid-template-columns: 1fr;
  }
  .footer__links {
    text-align: left;
    flex-direction: row;
    flex-wrap: wrap;
    gap: 1.2rem;
  }
  .footer__bottom {
    flex-direction: column;
    gap: 0.5rem;
    align-items: flex-start;
  }
}