/* ===========================
   GSMwave — Global Stylesheet
   =========================== */

@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&family=Space+Grotesk:wght@400;500;600;700&display=swap');

:root {
  --bg:        #0D0D0D;
  --bg-card:   #161616;
  --bg-hover:  #1F1F1F;
  --border:    #222222;
  --text:      #EFEFEF;
  --muted:     #888888;
  --accent:    #B8975A;
  --accent-dim:#8A6E3E;
  --white:     #FFFFFF;
  --radius:    8px;
  --transition: 0.25s ease;
  --max-w:     1100px;
  --font-head: 'Space Grotesk', sans-serif;
  --font-body: 'Inter', sans-serif;
}

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

html { scroll-behavior: smooth; }

body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}

a { color: inherit; text-decoration: none; transition: color var(--transition); }
a:hover { color: var(--accent); }
img { max-width: 100%; display: block; }
ul { list-style: none; }

/* ---- Layout ---- */
.container { max-width: var(--max-w); margin: 0 auto; padding: 0 24px; }
.section    { padding: 90px 0; }
.section-sm { padding: 60px 0; }

/* ---- Typography ---- */
h1,h2,h3,h4 { font-family: var(--font-head); font-weight: 600; line-height: 1.2; }
h1 { font-size: clamp(2.4rem, 6vw, 4rem); }
h2 { font-size: clamp(1.6rem, 4vw, 2.4rem); }
h3 { font-size: 1.2rem; }
p  { color: var(--muted); }

.accent { color: var(--accent); }
.label  {
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 12px;
  display: block;
}

/* ---- Navbar ---- */
#navbar {
  position: fixed; top: 0; left: 0; right: 0; z-index: 100;
  height: 64px;
  display: flex; align-items: center;
  background: rgba(13,13,13,0.85);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid transparent;
  transition: border-color var(--transition);
}
#navbar.scrolled { border-bottom-color: var(--border); }

#navbar .container {
  display: flex; align-items: center; justify-content: space-between;
  width: 100%;
}

.nav-logo {
  font-family: var(--font-head);
  font-size: 1.15rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--white);
}
.nav-logo span { color: var(--accent); }

.nav-links { display: flex; gap: 36px; }
.nav-links a {
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--muted);
  transition: color var(--transition);
}
.nav-links a:hover,
.nav-links a.active { color: var(--white); }

.nav-cta {
  background: var(--accent);
  color: #0D0D0D !important;
  padding: 8px 20px;
  border-radius: 100px;
  font-weight: 600 !important;
  font-size: 0.85rem !important;
}
.nav-cta:hover { background: var(--accent-dim); color: #0D0D0D !important; }

.nav-toggle {
  display: none;
  flex-direction: column; gap: 5px; cursor: pointer;
  background: none; border: none; padding: 4px;
}
.nav-toggle span {
  display: block; width: 24px; height: 2px;
  background: var(--text); border-radius: 2px;
  transition: var(--transition);
}

/* ---- Hero ---- */
#hero {
  min-height: 100vh;
  display: flex; align-items: center;
  padding-top: 64px;
  position: relative;
  overflow: hidden;
}
.hero-grid {
  display: grid;
  align-items: center;
  gap: 60px;
}
.hero-eyebrow {
  font-size: 0.8rem;
  font-weight: 500;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--accent);
  display: flex; align-items: center; gap: 10px;
  margin-bottom: 20px;
}
.hero-eyebrow::before {
  content: '';
  display: inline-block; width: 32px; height: 1px;
  background: var(--accent);
}
.hero-title {
  font-size: clamp(2.8rem, 7vw, 5rem);
  font-weight: 700;
  line-height: 1.05;
  letter-spacing: -0.03em;
  color: var(--white);
  margin-bottom: 24px;
}
.hero-title em {
  font-style: normal;
  color: var(--accent);
}
.hero-desc {
  font-size: 1.1rem;
  color: var(--muted);
  max-width: 500px;
  margin-bottom: 40px;
  line-height: 1.8;
}
.hero-actions { display: flex; gap: 16px; flex-wrap: wrap; }

.btn {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 14px 28px;
  border-radius: 100px;
  font-weight: 600;
  font-size: 0.9rem;
  font-family: var(--font-body);
  cursor: pointer;
  border: none;
  transition: all var(--transition);
  text-decoration: none;
}
.btn-primary {
  background: var(--accent);
  color: #0D0D0D;
}
.btn-primary:hover { background: var(--accent-dim); color: #0D0D0D; transform: translateY(-2px); }
.btn-outline {
  background: transparent;
  color: var(--text);
  border: 1px solid var(--border);
}
.btn-outline:hover { border-color: var(--accent); color: var(--accent); transform: translateY(-2px); }

.hero-quote {
  margin-top: 60px;
  padding: 28px 32px;
  border-left: 2px solid var(--accent);
  background: var(--bg-card);
  border-radius: 0 var(--radius) var(--radius) 0;
}
.hero-quote p {
  font-family: var(--font-head);
  font-size: 1rem;
  color: var(--text);
  line-height: 1.6;
  font-style: italic;
}
.hero-quote cite {
  display: block; margin-top: 10px;
  font-size: 0.8rem; color: var(--muted);
  font-style: normal; font-weight: 500;
}

/* Noise/grain overlay */
#hero::after {
  content: '';
  position: absolute; inset: 0;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noise'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noise)' opacity='0.03'/%3E%3C/svg%3E");
  pointer-events: none; opacity: 0.4;
}

/* ---- Divider ---- */
.divider {
  width: 100%; height: 1px;
  background: var(--border);
}

/* ---- About ---- */
#about .about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: center;
}
.about-tag {
  display: inline-flex; align-items: center; gap: 8px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  padding: 6px 14px;
  border-radius: 100px;
  font-size: 0.8rem;
  color: var(--muted);
  margin-bottom: 20px;
}
.about-body { color: var(--muted); font-size: 1.05rem; line-height: 1.85; }
.about-body p + p { margin-top: 16px; }
.about-stats {
  display: grid; grid-template-columns: 1fr 1fr;
  gap: 20px; margin-top: 40px;
}
.stat-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px;
}
.stat-num {
  font-family: var(--font-head);
  font-size: 1.8rem; font-weight: 700;
  color: var(--accent);
}
.stat-label { font-size: 0.8rem; color: var(--muted); margin-top: 2px; }

/* ---- Books/Shop Preview ---- */
.section-header {
  display: flex; align-items: flex-end;
  justify-content: space-between;
  margin-bottom: 48px;
}
.section-header h2 { color: var(--white); }
.see-all {
  font-size: 0.85rem; font-weight: 500;
  color: var(--accent);
  display: flex; align-items: center; gap: 6px;
}
.see-all svg { transition: transform var(--transition); }
.see-all:hover svg { transform: translateX(4px); }

.books-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 24px;
}
.book-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 12px;
  overflow: hidden;
  transition: border-color var(--transition), transform var(--transition);
}
.book-card:hover { border-color: var(--accent); transform: translateY(-4px); }
.book-cover {
  aspect-ratio: 4/3;
  background: linear-gradient(135deg, #1a1a1a 0%, #222 100%);
  display: flex; align-items: center; justify-content: center;
  position: relative; overflow: hidden;
}
.book-cover-inner {
  width: 80px; height: 108px;
  background: linear-gradient(135deg, var(--accent-dim), var(--accent));
  border-radius: 4px;
  display: flex; flex-direction: column;
  align-items: center; justify-content: center;
  box-shadow: 8px 8px 24px rgba(0,0,0,0.6);
}
.book-cover-inner span {
  font-family: var(--font-head);
  font-size: 0.6rem; font-weight: 700;
  color: #0D0D0D; text-align: center; padding: 8px;
  letter-spacing: 0.05em;
}
.book-info { padding: 20px; }
.book-category {
  font-size: 0.72rem; font-weight: 600;
  letter-spacing: 0.1em; text-transform: uppercase;
  color: var(--accent); margin-bottom: 8px;
}
.book-title {
  font-family: var(--font-head); font-size: 1.05rem;
  color: var(--white); margin-bottom: 8px; font-weight: 600;
}
.book-desc { font-size: 0.875rem; color: var(--muted); line-height: 1.6; margin-bottom: 20px; }
.book-footer { display: flex; align-items: center; justify-content: space-between; }
.book-price {
  font-family: var(--font-head); font-size: 1.2rem;
  font-weight: 700; color: var(--white);
}
.book-buy {
  background: var(--accent);
  color: #0D0D0D;
  padding: 8px 18px;
  border-radius: 100px;
  font-size: 0.8rem; font-weight: 700;
  transition: all var(--transition);
}
.book-buy:hover { background: var(--accent-dim); color: #0D0D0D; }

/* ---- Blog Preview ---- */
#blog-preview { background: var(--bg); }
.posts-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 24px;
}
.post-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 28px;
  transition: border-color var(--transition), transform var(--transition);
  display: flex; flex-direction: column; gap: 12px;
}
.post-card:hover { border-color: var(--accent); transform: translateY(-4px); }
.post-meta {
  display: flex; align-items: center; gap: 12px;
  font-size: 0.78rem; color: var(--muted);
}
.post-tag {
  background: rgba(184,151,90,0.1);
  color: var(--accent);
  padding: 3px 10px;
  border-radius: 100px;
  font-size: 0.72rem; font-weight: 600;
}
.post-title {
  font-family: var(--font-head); font-size: 1.1rem;
  color: var(--white); font-weight: 600; line-height: 1.4;
}
.post-excerpt { font-size: 0.875rem; color: var(--muted); line-height: 1.65; }
.post-read {
  font-size: 0.8rem; font-weight: 600;
  color: var(--accent);
  display: flex; align-items: center; gap: 6px;
  margin-top: auto;
}

/* ---- Newsletter ---- */
#newsletter {
  background: var(--bg-card);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  text-align: center;
  padding: 80px 0;
}
#newsletter h2 { color: var(--white); margin-bottom: 12px; }
#newsletter p  { max-width: 500px; margin: 0 auto 36px; }
.newsletter-form {
  display: flex; gap: 12px; max-width: 440px;
  margin: 0 auto; flex-wrap: wrap; justify-content: center;
}
.newsletter-form input {
  flex: 1; min-width: 220px;
  background: var(--bg);
  border: 1px solid var(--border);
  color: var(--text);
  padding: 12px 20px;
  border-radius: 100px;
  font-size: 0.9rem;
  font-family: var(--font-body);
  outline: none;
  transition: border-color var(--transition);
}
.newsletter-form input:focus { border-color: var(--accent); }
.newsletter-form input::placeholder { color: var(--muted); }

/* ---- Footer ---- */
footer {
  background: var(--bg);
  border-top: 1px solid var(--border);
  padding: 60px 0 32px;
}
.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: 60px;
  margin-bottom: 48px;
}
.footer-brand p { margin-top: 12px; font-size: 0.875rem; max-width: 280px; }
.footer-col h4 {
  font-size: 0.8rem; font-weight: 600;
  letter-spacing: 0.1em; text-transform: uppercase;
  color: var(--muted); margin-bottom: 16px;
}
.footer-col ul li + li { margin-top: 10px; }
.footer-col ul a { font-size: 0.875rem; color: var(--muted); }
.footer-col ul a:hover { color: var(--white); }
.footer-bottom {
  border-top: 1px solid var(--border);
  padding-top: 28px;
  display: flex; align-items: center; justify-content: space-between;
  font-size: 0.8rem; color: var(--muted);
}
.social-links { display: flex; gap: 16px; }
.social-links a {
  width: 36px; height: 36px;
  border: 1px solid var(--border);
  border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  color: var(--muted);
  transition: all var(--transition);
}
.social-links a:hover { border-color: var(--accent); color: var(--accent); }

/* ---- Blog Page ---- */
.page-hero {
  padding: 140px 0 80px;
  border-bottom: 1px solid var(--border);
}
.page-hero h1 { color: var(--white); margin-bottom: 12px; }
.filter-bar {
  display: flex; gap: 10px; flex-wrap: wrap;
  margin-bottom: 40px;
}
.filter-btn {
  background: var(--bg-card);
  border: 1px solid var(--border);
  color: var(--muted);
  padding: 8px 18px;
  border-radius: 100px;
  font-size: 0.8rem; font-weight: 500;
  cursor: pointer;
  font-family: var(--font-body);
  transition: all var(--transition);
}
.filter-btn:hover, .filter-btn.active {
  border-color: var(--accent);
  color: var(--accent);
  background: rgba(184,151,90,0.06);
}
.posts-list { display: flex; flex-direction: column; gap: 20px; }
.post-item {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 28px 32px;
  display: flex; gap: 32px; align-items: flex-start;
  transition: border-color var(--transition), transform var(--transition);
}
.post-item:hover { border-color: var(--accent); transform: translateX(4px); }
.post-item-date {
  min-width: 56px; text-align: center;
  font-family: var(--font-head); color: var(--accent);
}
.post-item-date .day   { font-size: 1.8rem; font-weight: 700; line-height: 1; }
.post-item-date .month { font-size: 0.72rem; text-transform: uppercase; letter-spacing: 0.1em; }
.post-item-content { flex: 1; }

/* ---- Shop Page ---- */
.shop-intro { padding: 140px 0 60px; border-bottom: 1px solid var(--border); }
.shop-intro h1 { color: var(--white); }

/* ---- Contact Page ---- */
.contact-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 80px; }
.contact-form { display: flex; flex-direction: column; gap: 20px; }
.form-group { display: flex; flex-direction: column; gap: 8px; }
.form-group label { font-size: 0.85rem; font-weight: 500; color: var(--text); }
.form-group input,
.form-group textarea {
  background: var(--bg-card);
  border: 1px solid var(--border);
  color: var(--text);
  padding: 12px 16px;
  border-radius: var(--radius);
  font-size: 0.9rem; font-family: var(--font-body);
  outline: none;
  transition: border-color var(--transition);
  resize: vertical;
}
.form-group input:focus,
.form-group textarea:focus { border-color: var(--accent); }
.form-group input::placeholder,
.form-group textarea::placeholder { color: var(--muted); }

/* ---- Responsive ---- */
@media (max-width: 768px) {
  .nav-links { display: none; }
  .nav-toggle { display: flex; }
  .nav-links.open {
    display: flex; flex-direction: column;
    position: fixed; top: 64px; left: 0; right: 0;
    background: rgba(13,13,13,0.97);
    padding: 24px;
    border-bottom: 1px solid var(--border);
    backdrop-filter: blur(12px);
  }
  #about .about-grid { grid-template-columns: 1fr; gap: 48px; }
  .footer-grid { grid-template-columns: 1fr; gap: 40px; }
  .footer-bottom { flex-direction: column; gap: 16px; text-align: center; }
  .section-header { flex-direction: column; align-items: flex-start; gap: 12px; }
  .contact-grid { grid-template-columns: 1fr; }
  .post-item { flex-direction: column; gap: 16px; }
  .hero-quote { margin-top: 40px; }
}