/* ============================================
   PERPRIMA.CO — Base Styles
   Colors: #1C1631 · #1A162B · #C2B1FF
   ============================================ */

:root {
  --bg-deep:     #1C1631;
  --bg-surface:  #1A162B;
  --bg-raised:   #221C3A;
  --accent:      #C2B1FF;
  --accent-dim:  rgba(194, 177, 255, 0.15);
  --accent-glow: rgba(194, 177, 255, 0.06);
  --text-primary:   #FFFFFF;
  --text-secondary: #E8E4F0;
  --text-muted:     #9B8EC4;
  --text-faint:     #5C5278;
  --border:      rgba(194, 177, 255, 0.1);
  --border-dim:  rgba(194, 177, 255, 0.05);

  --font-serif: 'Cormorant Garamond', Georgia, serif;
  --font-sans:  'Inter', -apple-system, sans-serif;

  --max-width: 760px;
  --wide-width: 1100px;
}

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

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

body {
  background-color: var(--bg-deep);
  color: var(--text-secondary);
  font-family: var(--font-sans);
  font-weight: 300;
  line-height: 1.7;
  overflow-x: hidden;
}

/* ——— Typography ——— */
h1, h2, h3, h4 {
  font-family: var(--font-serif);
  font-weight: 400;
  color: var(--text-primary);
  line-height: 1.15;
  letter-spacing: -0.01em;
}

p { color: var(--text-secondary); }

a {
  color: var(--accent);
  text-decoration: none;
  transition: opacity 0.2s ease;
}
a:hover { opacity: 0.75; }

/* ——— Layout ——— */
.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 2rem;
}

.container--wide {
  max-width: var(--wide-width);
  margin: 0 auto;
  padding: 0 2rem;
}

section { padding: 6rem 0; }

/* ——— Navigation ——— */
nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  padding: 1.5rem 2.5rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  background: linear-gradient(to bottom, var(--bg-deep) 0%, transparent 100%);
}

.nav__logo {
  display: flex;
  align-items: center;
  opacity: 1;
}
.nav__logo:hover { opacity: 0.75; }

.nav__logo-img {
  height: 36px;
  width: auto;
  display: block;
  /* Subtle glow on hover */
  transition: filter 0.3s ease;
}
.nav__logo:hover .nav__logo-img {
  filter: brightness(1.2) drop-shadow(0 0 8px rgba(194, 177, 255, 0.4));
}

.nav__links {
  display: flex;
  gap: 2.5rem;
  list-style: none;
}

.nav__links a {
  font-size: 0.78rem;
  font-weight: 400;
  color: var(--text-muted);
  letter-spacing: 0.1em;
  text-transform: uppercase;
}
.nav__links a:hover { color: var(--text-primary); opacity: 1; }

/* ——— Hero ——— */
.hero {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: 8rem 2.5rem 6rem;
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  top: -20%;
  right: -10%;
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, rgba(194, 177, 255, 0.04) 0%, transparent 70%);
  pointer-events: none;
}

.hero__eyebrow {
  font-size: 0.72rem;
  font-weight: 400;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 2.5rem;
  opacity: 0;
  animation: fadeUp 0.8s ease 0.2s forwards;
}

.hero__headline {
  font-family: var(--font-serif);
  font-size: clamp(2.8rem, 6vw, 5rem);
  font-weight: 300;
  color: var(--text-primary);
  line-height: 1.1;
  max-width: 760px;
  opacity: 0;
  animation: fadeUp 0.8s ease 0.4s forwards;
}

.hero__headline em {
  font-style: italic;
  color: var(--accent);
}

.hero__subline {
  margin-top: 2rem;
  font-size: 1.05rem;
  font-weight: 300;
  color: var(--text-muted);
  max-width: 480px;
  line-height: 1.8;
  opacity: 0;
  animation: fadeUp 0.8s ease 0.6s forwards;
}

.hero__cta {
  margin-top: 3rem;
  display: flex;
  align-items: center;
  gap: 1.5rem;
  flex-wrap: wrap;
  opacity: 0;
  animation: fadeUp 0.8s ease 0.8s forwards;
}

.hero__scroll {
  position: absolute;
  bottom: 2.5rem;
  left: 2.5rem;
  display: flex;
  align-items: center;
  gap: 1rem;
  opacity: 0;
  animation: fadeIn 1s ease 1.2s forwards;
}

.hero__scroll-line {
  width: 40px;
  height: 1px;
  background: var(--accent);
  opacity: 0.4;
}

.hero__scroll-text {
  font-size: 0.7rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--text-faint);
}

/* ——— Buttons ——— */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  font-family: var(--font-sans);
  font-size: 0.8rem;
  font-weight: 400;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  padding: 0.9rem 2rem;
  border: 1px solid var(--border);
  color: var(--text-primary);
  background: transparent;
  cursor: pointer;
  transition: all 0.3s ease;
  position: relative;
  overflow: hidden;
}

.btn::before {
  content: '';
  position: absolute;
  inset: 0;
  background: var(--accent-dim);
  transform: translateX(-100%);
  transition: transform 0.3s ease;
}

.btn:hover { border-color: var(--accent); color: var(--accent); opacity: 1; }
.btn:hover::before { transform: translateX(0); }

.btn--accent {
  background: var(--accent);
  color: var(--bg-deep);
  border-color: var(--accent);
  font-weight: 500;
}
.btn--accent:hover { background: transparent; color: var(--accent); }
.btn--accent::before { display: none; }

.btn svg { width: 14px; height: 14px; transition: transform 0.2s ease; }
.btn:hover svg { transform: translateX(3px); }

/* ——— Divider ——— */
.divider {
  width: 1px;
  height: 60px;
  background: linear-gradient(to bottom, var(--accent), transparent);
  margin: 0 auto;
  opacity: 0.3;
}

/* ——— Section: For You ——— */
.for-you {
  background: var(--bg-surface);
  border-top: 1px solid var(--border-dim);
  border-bottom: 1px solid var(--border-dim);
}

.for-you__label {
  font-size: 0.7rem;
  font-weight: 400;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 1.5rem;
}

.for-you__headline {
  font-size: clamp(1.8rem, 3.5vw, 2.8rem);
  font-weight: 300;
  line-height: 1.2;
  max-width: 640px;
  margin-bottom: 2.5rem;
}

.for-you__body {
  max-width: 580px;
  font-size: 1rem;
  line-height: 1.9;
  color: var(--text-muted);
}

.for-you__body p + p { margin-top: 1.2rem; }

.for-you__tension {
  margin-top: 3rem;
  padding: 2rem 2.5rem;
  border-left: 2px solid var(--accent);
  background: var(--accent-glow);
}

.for-you__tension p {
  font-family: var(--font-serif);
  font-size: 1.35rem;
  font-weight: 300;
  font-style: italic;
  color: var(--text-primary);
  line-height: 1.5;
}

/* ——— Section: Framework ——— */
.framework__header {
  text-align: center;
  margin-bottom: 5rem;
}

.framework__label {
  font-size: 0.7rem;
  font-weight: 400;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 1.5rem;
}

.framework__headline {
  font-size: clamp(1.8rem, 3vw, 2.5rem);
  font-weight: 300;
  max-width: 560px;
  margin: 0 auto;
}

.framework__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  background: var(--border-dim);
  border: 1px solid var(--border-dim);
}

.framework__item {
  background: var(--bg-deep);
  padding: 3rem 2.5rem;
  position: relative;
  transition: background 0.3s ease;
}

.framework__item:hover { background: var(--bg-surface); }

.framework__number {
  font-family: var(--font-serif);
  font-size: 3.5rem;
  font-weight: 300;
  color: var(--accent);
  opacity: 0.2;
  line-height: 1;
  margin-bottom: 1.5rem;
}

.framework__item-label {
  font-size: 0.68rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 0.8rem;
}

.framework__item-title {
  font-size: 1.4rem;
  font-weight: 400;
  margin-bottom: 1rem;
}

.framework__item-question {
  font-family: var(--font-serif);
  font-size: 1rem;
  font-style: italic;
  color: var(--text-muted);
  margin-bottom: 1.2rem;
}

.framework__item-body {
  font-size: 0.9rem;
  line-height: 1.8;
  color: var(--text-faint);
}

/* ——— Section: Writing ——— */
.writing { background: var(--bg-surface); }

.writing__header {
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  margin-bottom: 3.5rem;
  padding-bottom: 1.5rem;
  border-bottom: 1px solid var(--border-dim);
}

.writing__label {
  font-size: 0.7rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 0.8rem;
}

.writing__headline { font-size: 2rem; font-weight: 300; }

.piece {
  padding: 2.5rem 0;
  border-bottom: 1px solid var(--border-dim);
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 2rem;
  align-items: start;
  transition: opacity 0.2s ease;
  cursor: pointer;
}

.piece:hover { opacity: 0.75; }

.piece__type {
  font-size: 0.68rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--text-faint);
  margin-bottom: 0.7rem;
}

.piece__title {
  font-family: var(--font-serif);
  font-size: 1.5rem;
  font-weight: 400;
  color: var(--text-primary);
  margin-bottom: 0.6rem;
  line-height: 1.25;
}

.piece__excerpt {
  font-size: 0.92rem;
  color: var(--text-muted);
  line-height: 1.7;
  max-width: 560px;
}

.piece__arrow {
  color: var(--text-faint);
  font-size: 1.2rem;
  margin-top: 0.3rem;
  transition: transform 0.2s ease, color 0.2s ease;
}

.piece:hover .piece__arrow {
  transform: translate(3px, -3px);
  color: var(--accent);
}

.writing__more {
  margin-top: 3rem;
  text-align: center;
}

/* ——— Section: Origin ——— */
.origin {
  padding: 0;
  display: grid;
  grid-template-columns: 1fr 1fr;
  min-height: 600px;
}

.origin__image {
  position: relative;
  overflow: hidden;
}

.origin__image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
  filter: saturate(0.8) brightness(0.85);
  display: block;
}

.origin__image-caption {
  position: absolute;
  bottom: 1.5rem;
  left: 1.5rem;
  font-size: 0.72rem;
  letter-spacing: 0.1em;
  color: rgba(255,255,255,0.4);
  font-family: var(--font-sans);
}

.origin__content {
  padding: 5rem 4rem;
  background: var(--bg-surface);
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.origin__label {
  font-size: 0.7rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 2rem;
}

.origin__headline {
  font-size: clamp(1.8rem, 2.5vw, 2.4rem);
  font-weight: 300;
  line-height: 1.2;
  margin-bottom: 2rem;
}

.origin__body {
  font-size: 0.95rem;
  line-height: 1.9;
  color: var(--text-muted);
}

.origin__body p + p { margin-top: 1.2rem; }

.origin__prima {
  margin-top: 2.5rem;
  padding-top: 2rem;
  border-top: 1px solid var(--border-dim);
  font-size: 0.85rem;
  color: var(--text-faint);
  font-style: italic;
}

/* ——— Section: CTA ——— */
.cta-section {
  text-align: center;
  padding: 8rem 2rem;
  position: relative;
  overflow: hidden;
}

.cta-section::before {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 700px;
  height: 700px;
  background: radial-gradient(circle, rgba(194, 177, 255, 0.05) 0%, transparent 65%);
  pointer-events: none;
}

.cta-section__label {
  font-size: 0.7rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 2rem;
}

.cta-section__headline {
  font-size: clamp(2rem, 4vw, 3.5rem);
  font-weight: 300;
  max-width: 600px;
  margin: 0 auto 1.5rem;
  line-height: 1.15;
}

.cta-section__body {
  max-width: 440px;
  margin: 0 auto 3rem;
  font-size: 0.95rem;
  color: var(--text-muted);
  line-height: 1.8;
}

.cta-section__note {
  margin-top: 1.5rem;
  font-size: 0.78rem;
  color: var(--text-faint);
  letter-spacing: 0.05em;
}

/* ——— Footer ——— */
footer {
  padding: 3rem 2.5rem;
  border-top: 1px solid var(--border-dim);
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.footer__left {
  font-family: var(--font-serif);
  font-size: 0.95rem;
  color: var(--text-faint);
}

.footer__right {
  font-size: 0.75rem;
  color: var(--text-faint);
  letter-spacing: 0.08em;
}

/* ——— Animations ——— */
@keyframes fadeUp {
  from { opacity: 0; transform: translateY(20px); }
  to   { opacity: 1; transform: translateY(0); }
}

@keyframes fadeIn {
  from { opacity: 0; }
  to   { opacity: 1; }
}

.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}
.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

/* ——— Hero Inner ——— */
.hero__inner {
  max-width: 760px;
  width: 100%;
}

/* ——— Nav CTA ——— */
.nav__cta {
  color: var(--accent) !important;
  border: 1px solid rgba(194, 177, 255, 0.2);
  padding: 0.35rem 1rem;
  transition: background 0.2s ease, border-color 0.2s ease;
}
.nav__cta:hover {
  background: var(--accent-dim);
  border-color: var(--accent);
  color: var(--accent) !important;
  opacity: 1;
}

/* ——— Button variants ——— */
.btn--ghost {
  border-color: rgba(194, 177, 255, 0.2);
  color: var(--text-muted);
}
.btn--ghost:hover {
  border-color: var(--accent);
  color: var(--accent);
  opacity: 1;
}

.btn--sm {
  font-size: 0.72rem;
  padding: 0.6rem 1.4rem;
  letter-spacing: 0.1em;
}

/* ——— Framework Section wrapper ——— */
.framework-section {
  background: var(--bg-deep);
  border-top: 1px solid var(--border-dim);
  border-bottom: 1px solid var(--border-dim);
}

/* ——— Framework header link ——— */
.framework__link {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.75rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-top: 2rem;
  transition: color 0.2s ease;
}
.framework__link:hover {
  color: var(--accent);
  opacity: 1;
}

/* ——— Footer Logo ——— */
.footer__logo {
  display: flex;
  align-items: center;
  opacity: 1;
  transition: opacity 0.2s ease;
}
.footer__logo:hover { opacity: 0.6; }

/* ——— Footer Links ——— */
.footer__links {
  display: flex;
  gap: 2rem;
}
.footer__links a {
  font-size: 0.75rem;
  color: var(--text-faint);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  transition: color 0.2s ease;
}
.footer__links a:hover {
  color: var(--accent);
  opacity: 1;
}

/* ——— Responsive ——— */
@media (max-width: 900px) {
  .framework__grid { grid-template-columns: 1fr; }
  .origin { grid-template-columns: 1fr; }
  .origin__image { height: 360px; }
  .origin__content { padding: 4rem 2rem; }
}

@media (max-width: 640px) {
  nav { padding: 1.2rem 1.5rem; }
  .hero { padding: 7rem 1.5rem 5rem; }
  .hero__cta { flex-direction: column; align-items: flex-start; gap: 1rem; }
  .writing__header { flex-direction: column; align-items: flex-start; gap: 1rem; }
  footer { flex-direction: column; gap: 1.5rem; text-align: center; }
  .footer__links { flex-wrap: wrap; justify-content: center; gap: 1.2rem; }
  .nav__cta { display: none; }
}