/* ======================================
   CARISSA REES POETRY — Design Tokens
   Warm cream / golden / botanical palette
   ====================================== */

:root {
  /* Type Scale */
  --text-xs:   clamp(0.75rem,  0.7rem  + 0.25vw, 0.875rem);
  --text-sm:   clamp(0.875rem, 0.8rem  + 0.35vw, 1rem);
  --text-base: clamp(1rem,     0.95rem + 0.25vw, 1.125rem);
  --text-lg:   clamp(1.125rem, 1rem    + 0.75vw, 1.5rem);
  --text-xl:   clamp(1.5rem,   1.2rem  + 1.25vw, 2.25rem);
  --text-2xl:  clamp(2rem,     1.2rem  + 2.5vw,  3.5rem);
  --text-3xl:  clamp(2.5rem,   1rem    + 4vw,    5rem);
  --text-hero: clamp(3rem,     0.5rem  + 7vw,    8rem);

  /* Spacing */
  --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;
  --space-32: 8rem;

  /* Radius */
  --radius-sm: 0.375rem;
  --radius-md: 0.5rem;
  --radius-lg: 0.75rem;
  --radius-xl: 1rem;
  --radius-full: 9999px;

  /* Transitions */
  --transition-interactive: 180ms cubic-bezier(0.16, 1, 0.3, 1);
  --ease-out: cubic-bezier(0.16, 1, 0.3, 1);

  /* Content widths */
  --content-narrow: 640px;
  --content-default: 960px;
  --content-wide: 1200px;

  /* Fonts */
  --font-display: 'Zodiak', 'Georgia', serif;
  --font-body: 'Satoshi', 'Helvetica Neue', sans-serif;

  /* Custom palette — warm, botanical, poetic */
  --color-bg:             #faf8f4;
  --color-surface:        #f5f1ea;
  --color-surface-2:      #eee9e0;
  --color-divider:        #ddd6c9;
  --color-border:         #d4cbbe;
  --color-text:           #2c2417;
  --color-text-muted:     #7a6f5f;
  --color-text-faint:     #b5a997;
  --color-primary:        #b8860b;     /* warm golden */
  --color-primary-hover:  #96700a;
  --color-primary-active: #7a5b08;
  --color-accent:         #d4a853;     /* lighter gold for highlights */
  --color-cream:          #fdf8ef;

  /* Shadows */
  --shadow-sm: 0 1px 2px oklch(0.3 0.02 70 / 0.06);
  --shadow-md: 0 4px 12px oklch(0.3 0.02 70 / 0.08);
  --shadow-lg: 0 12px 32px oklch(0.3 0.02 70 / 0.12);
}

/* ======================================
   LAYOUT
   ====================================== */

.container {
  max-width: var(--content-default);
  margin-inline: auto;
  padding-inline: var(--space-6);
}

.container--narrow {
  max-width: var(--content-narrow);
}

.container--wide {
  max-width: var(--content-wide);
}

/* ======================================
   NAVIGATION
   ====================================== */

.nav {
  position: sticky;
  top: 0;
  z-index: 50;
  background: oklch(from var(--color-bg) l c h / 0.92);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid oklch(from var(--color-text) l c h / 0.06);
  transition: box-shadow 0.3s var(--ease-out);
}

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

.nav__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-block: var(--space-4);
  max-width: var(--content-wide);
  margin-inline: auto;
  padding-inline: var(--space-6);
}

.nav__logo {
  font-family: var(--font-display);
  font-size: var(--text-lg);
  font-weight: 500;
  color: var(--color-text);
  text-decoration: none;
  letter-spacing: -0.01em;
}

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

.nav__links a {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  text-decoration: none;
  letter-spacing: 0.03em;
  text-transform: lowercase;
  transition: color var(--transition-interactive);
}

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

.nav__mobile-toggle {
  display: none;
  width: 44px;
  height: 44px;
  align-items: center;
  justify-content: center;
  color: var(--color-text);
}

@media (max-width: 640px) {
  .nav__links {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    flex-direction: column;
    background: var(--color-bg);
    padding: var(--space-6);
    gap: var(--space-4);
    border-bottom: 1px solid var(--color-divider);
    box-shadow: var(--shadow-md);
  }
  .nav__links.open { display: flex; }
  .nav__mobile-toggle { display: flex; }
}

/* ======================================
   HERO
   ====================================== */

.hero {
  position: relative;
  min-height: 90vh;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}

.hero__bg {
  position: absolute;
  inset: 0;
  z-index: 0;
}

.hero__bg img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center 40%;
}

.hero__overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(
    to bottom,
    oklch(0.97 0.01 80 / 0.3) 0%,
    oklch(0.97 0.01 80 / 0.65) 40%,
    oklch(0.97 0.01 80 / 0.88) 70%,
    var(--color-bg) 100%
  );
}

.hero__content {
  position: relative;
  z-index: 1;
  text-align: center;
  padding: var(--space-16) var(--space-6) var(--space-12);
  max-width: 700px;
}

.hero__subtitle {
  font-family: var(--font-body);
  font-size: var(--text-xs);
  font-weight: 500;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--color-primary);
  margin-bottom: var(--space-4);
}

.hero__title {
  font-family: var(--font-display);
  font-size: var(--text-3xl);
  font-weight: 400;
  color: var(--color-text);
  line-height: 1.05;
  margin-bottom: var(--space-6);
  font-style: italic;
}

.hero__author {
  font-family: var(--font-body);
  font-size: var(--text-sm);
  font-weight: 500;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--color-text-muted);
  margin-bottom: var(--space-8);
}

.hero__tagline {
  font-family: var(--font-display);
  font-size: var(--text-base);
  font-style: italic;
  color: var(--color-text-muted);
  margin-bottom: var(--space-10);
  max-width: 50ch;
  margin-inline: auto;
  line-height: 1.7;
}

.hero__cta-group {
  display: flex;
  gap: var(--space-4);
  justify-content: center;
  flex-wrap: wrap;
}

/* ======================================
   BUTTONS
   ====================================== */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  font-family: var(--font-body);
  font-size: var(--text-sm);
  font-weight: 500;
  letter-spacing: 0.08em;
  text-transform: lowercase;
  text-decoration: none;
  padding: var(--space-3) var(--space-8);
  border-radius: var(--radius-full);
  transition: background var(--transition-interactive),
              color var(--transition-interactive),
              box-shadow var(--transition-interactive),
              transform var(--transition-interactive);
  cursor: pointer;
  min-height: 48px;
}

.btn--primary {
  background: var(--color-text);
  color: var(--color-cream);
}

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

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

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

.btn--secondary:hover {
  background: var(--color-surface);
  border-color: var(--color-text-muted);
  transform: translateY(-1px);
}

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

/* ======================================
   BOTANICAL DIVIDER
   ====================================== */

.divider {
  display: flex;
  justify-content: center;
  padding: var(--space-8) 0;
  opacity: 0.5;
}

.divider img {
  max-width: 360px;
  width: 100%;
  height: auto;
}

/* ======================================
   POEM PREVIEW SECTION
   ====================================== */

.section {
  padding-block: clamp(var(--space-12), 8vw, var(--space-24));
}

.section__label {
  font-family: var(--font-body);
  font-size: var(--text-xs);
  font-weight: 500;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--color-primary);
  margin-bottom: var(--space-4);
  text-align: center;
}

.section__title {
  font-family: var(--font-display);
  font-size: var(--text-xl);
  font-weight: 400;
  color: var(--color-text);
  margin-bottom: var(--space-10);
  text-align: center;
}

.poems-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(300px, 100%), 1fr));
  gap: var(--space-8);
  max-width: var(--content-wide);
  margin-inline: auto;
  padding-inline: var(--space-6);
}

.poem-card {
  background: var(--color-cream);
  border: 1px solid oklch(from var(--color-text) l c h / 0.06);
  border-radius: var(--radius-lg);
  padding: var(--space-10) var(--space-8);
  text-align: center;
  transition: box-shadow var(--transition-interactive),
              transform var(--transition-interactive);
}

.poem-card:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
}

.poem-card__title {
  font-family: var(--font-display);
  font-size: var(--text-lg);
  font-weight: 400;
  font-style: italic;
  color: var(--color-text);
  margin-bottom: var(--space-6);
}

.poem-card__body {
  font-family: var(--font-display);
  font-size: var(--text-base);
  font-style: italic;
  color: var(--color-text-muted);
  line-height: 2;
  max-width: 36ch;
  margin-inline: auto;
}

.poem-card__body br {
  display: block;
  content: "";
}

.poem-card__page {
  margin-top: var(--space-6);
  font-family: var(--font-body);
  font-size: var(--text-xs);
  color: var(--color-text-faint);
  letter-spacing: 0.1em;
}

/* ======================================
   ABOUT SECTION
   ====================================== */

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

.about__grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-12);
  align-items: center;
  max-width: var(--content-wide);
  margin-inline: auto;
  padding-inline: var(--space-6);
}

.about__image {
  border-radius: var(--radius-lg);
  overflow: hidden;
}

.about__image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  aspect-ratio: 4/5;
}

.about__text h2 {
  font-family: var(--font-display);
  font-size: var(--text-xl);
  font-weight: 400;
  color: var(--color-text);
  margin-bottom: var(--space-6);
}

.about__text p {
  font-size: var(--text-base);
  color: var(--color-text-muted);
  margin-bottom: var(--space-4);
  line-height: 1.7;
}

.about__text p:last-of-type {
  margin-bottom: var(--space-8);
}

@media (max-width: 768px) {
  .about__grid {
    grid-template-columns: 1fr;
  }
  .about__image {
    order: -1;
    max-height: 400px;
  }
}

/* ======================================
   BUY SECTION
   ====================================== */

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

.buy__grid {
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: var(--space-12);
  align-items: center;
  max-width: var(--content-wide);
  margin-inline: auto;
  padding-inline: var(--space-6);
}

.buy__book-image {
  position: relative;
  display: flex;
  justify-content: center;
}

.buy__book-mockup {
  max-width: 280px;
  width: 100%;
  border-radius: var(--radius-sm);
  box-shadow: var(--shadow-lg);
}

.buy__details h2 {
  font-family: var(--font-display);
  font-size: var(--text-xl);
  font-weight: 400;
  color: var(--color-text);
  margin-bottom: var(--space-4);
}

.buy__details .buy__description {
  font-size: var(--text-base);
  color: var(--color-text-muted);
  line-height: 1.7;
  margin-bottom: var(--space-6);
}

.buy__meta {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
  margin-bottom: var(--space-8);
  font-size: var(--text-sm);
  color: var(--color-text-muted);
}

.buy__meta span {
  display: flex;
  align-items: center;
  gap: var(--space-2);
}

.buy__meta strong {
  color: var(--color-text);
  font-weight: 500;
}

.buy__buttons {
  display: flex;
  gap: var(--space-4);
  flex-wrap: wrap;
}

@media (max-width: 768px) {
  .buy__grid {
    grid-template-columns: 1fr;
    text-align: center;
  }
  .buy__buttons {
    justify-content: center;
  }
}

/* ======================================
   REVIEWS SECTION
   ====================================== */

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

.reviews__grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(280px, 100%), 1fr));
  gap: var(--space-6);
  max-width: var(--content-wide);
  margin-inline: auto;
  padding-inline: var(--space-6);
}

.review-card {
  background: var(--color-cream);
  border: 1px solid oklch(from var(--color-text) l c h / 0.06);
  border-radius: var(--radius-lg);
  padding: var(--space-8);
}

.review-card__stars {
  color: var(--color-primary);
  font-size: var(--text-sm);
  margin-bottom: var(--space-4);
  letter-spacing: 0.1em;
}

.review-card__quote {
  font-family: var(--font-display);
  font-size: var(--text-base);
  font-style: italic;
  color: var(--color-text);
  line-height: 1.7;
  margin-bottom: var(--space-4);
}

.review-card__author {
  font-size: var(--text-xs);
  color: var(--color-text-muted);
  letter-spacing: 0.05em;
}

/* ======================================
   EMAIL SIGNUP
   ====================================== */

.signup {
  background: var(--color-cream);
  text-align: center;
}

.signup h2 {
  font-family: var(--font-display);
  font-size: var(--text-xl);
  font-weight: 400;
  color: var(--color-text);
  margin-bottom: var(--space-3);
}

.signup p {
  font-size: var(--text-base);
  color: var(--color-text-muted);
  margin-bottom: var(--space-8);
  max-width: 45ch;
  margin-inline: auto;
}

.signup__form {
  display: flex;
  gap: var(--space-3);
  max-width: 440px;
  margin-inline: auto;
  flex-wrap: wrap;
  justify-content: center;
}

.signup__input {
  flex: 1;
  min-width: 200px;
  padding: var(--space-3) var(--space-5);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-full);
  background: var(--color-bg);
  font-size: var(--text-sm);
  outline: none;
  transition: border-color var(--transition-interactive),
              box-shadow var(--transition-interactive);
}

.signup__input:focus {
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px oklch(from var(--color-primary) l c h / 0.15);
}

.signup__input::placeholder {
  color: var(--color-text-faint);
}

/* ======================================
   FOOTER
   ====================================== */

.footer {
  padding: var(--space-12) var(--space-6) var(--space-8);
  text-align: center;
}

.footer__socials {
  display: flex;
  justify-content: center;
  gap: var(--space-6);
  margin-bottom: var(--space-6);
}

.footer__socials a {
  color: var(--color-text-muted);
  text-decoration: none;
  font-size: var(--text-sm);
  letter-spacing: 0.05em;
  transition: color var(--transition-interactive);
}

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

.footer__copy {
  font-size: var(--text-xs);
  color: var(--color-text-faint);
}

/* ======================================
   SCROLL ANIMATIONS
   ====================================== */

.fade-in {
  opacity: 1;
}

@supports (animation-timeline: scroll()) {
  .fade-in {
    opacity: 0;
    animation: reveal-fade linear both;
    animation-timeline: view();
    animation-range: entry 0% entry 80%;
  }
}

@keyframes reveal-fade {
  to { opacity: 1; }
}

/* ======================================
   FULL-BLEED QUOTE
   ====================================== */

.pull-quote {
  text-align: center;
  padding: var(--space-16) var(--space-6);
  background: var(--color-bg);
}

.pull-quote blockquote {
  font-family: var(--font-display);
  font-size: var(--text-xl);
  font-style: italic;
  font-weight: 400;
  color: var(--color-text);
  max-width: 38ch;
  margin-inline: auto;
  line-height: 1.6;
}

.pull-quote cite {
  display: block;
  margin-top: var(--space-4);
  font-family: var(--font-body);
  font-size: var(--text-xs);
  font-style: normal;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--color-text-faint);
}

/* ======================================
   RESPONSIVE REFINEMENTS
   ====================================== */

@media (max-width: 480px) {
  .hero__title {
    font-size: var(--text-2xl);
  }
  .hero {
    min-height: 80vh;
  }
  .poems-grid {
    gap: var(--space-6);
  }
}