/* ===== RESET & BASE ===== */
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
:root{
  --gold:#C9A84C;
  --gold-light:#E8C96A;
  --dark:#0A0A0F;
  --dark2:#111118;
  --dark3:#18181F;
  --text:#E8E4D9;
  --text-muted:#9A9588;
  --white:#FAFAF7;
}
html{scroll-behavior:smooth}
body{font-family:'Inter',sans-serif;background:var(--dark);color:var(--text);line-height:1.7;overflow-x:hidden}
a{text-decoration:none;color:inherit}
img{max-width:100%;display:block}
button{border:none;cursor:pointer;font-family:inherit}

/* ===== TYPOGRAPHY ===== */
h1,h2,h3,h4{font-family:'Playfair Display',serif;color:var(--white);line-height:1.2}
.section-label{font-size:.75rem;letter-spacing:.25em;text-transform:uppercase;color:var(--gold);margin-bottom:1rem;font-weight:600}
.section-title{font-size:clamp(1.8rem,4vw,3rem);font-weight:700;margin-bottom:1.25rem}
.section-desc{font-size:1.05rem;color:var(--text-muted);max-width:640px}

/* ===== LAYOUT ===== */
.section-inner{max-width:1140px;margin:0 auto;padding:0 2rem}
.nav,.footer{background:rgba(10,10,15,.92);backdrop-filter:blur(20px);-webkit-backdrop-filter:blur(20px)}
.nav{border-bottom:1px solid rgba(201,168,76,.15);position:sticky;top:0;z-index:100}
.nav-inner{max-width:1140px;margin:0 auto;padding:.85rem 2rem;display:flex;align-items:center;justify-content:space-between}
.nav-logo{font-family:'Playfair Display',serif;font-size:.95rem;letter-spacing:.1em;color:var(--gold);font-weight:700}
.nav-links{display:flex;gap:2rem;align-items:center}
.nav-links a{font-size:.85rem;color:var(--text-muted);transition:color .2s}
.nav-links a:hover{color:var(--gold)}
.nav-cta{background:var(--gold);color:var(--dark) !important;padding:.5rem 1.25rem;border-radius:4px;font-weight:600;transition:background .2s}
.nav-cta:hover{background:var(--gold-light)}
.nav-hamburger{display:none;flex-direction:column;gap:5px;background:none;border:none}
.nav-hamburger span{width:22px;height:2px;background:var(--gold);display:block}

/* ===== HERO ===== */
.hero{min-height:100vh;display:grid;grid-template-columns:1fr 1fr;gap:3rem;align-items:center;position:relative;padding:6rem 2rem 4rem;max-width:1140px;margin:0 auto}
.hero-bg{position:fixed;inset:0;background:radial-gradient(ellipse 80% 60% at 60% 20%,rgba(201,168,76,.06) 0%,transparent 60%),radial-gradient(ellipse 60% 80% at 10% 90%,rgba(201,168,76,.03) 0%,transparent 50%);pointer-events:none;z-index:0}
.hero-content{position:relative;z-index:1}
.hero-badge{display:inline-block;font-size:.7rem;letter-spacing:.3em;text-transform:uppercase;color:var(--gold);border:1px solid rgba(201,168,76,.4);padding:.4rem 1rem;border-radius:30px;margin-bottom:1.5rem}
.hero-title{font-size:clamp(3rem,7vw,5.5rem);font-weight:900;line-height:1;letter-spacing:-.02em;margin-bottom:.5rem;background:linear-gradient(135deg,#fff 40%,var(--gold) 100%);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}
.hero-sub{font-family:'Amiri',serif;font-size:1.3rem;color:var(--gold-light);margin-bottom:1.5rem;letter-spacing:.05em}
.hero-desc{font-size:1rem;color:var(--text-muted);margin-bottom:2rem;line-height:1.9}
.hero-desc strong{color:var(--text)}
.hero-desc em{color:var(--gold-light);font-style:normal}
.hero-stats{display:flex;gap:2.5rem;margin-bottom:2rem}
.stat{text-align:center}
.stat-num{display:block;font-family:'Playfair Display',serif;font-size:2rem;font-weight:700;color:var(--white)}
.stat-star{color:var(--gold)}
.stat-label{font-size:.75rem;color:var(--text-muted);letter-spacing:.05em}
.hero-tags{display:flex;flex-wrap:wrap;gap:.6rem;margin-bottom:2.5rem}
.tag{font-size:.7rem;letter-spacing:.08em;color:var(--gold);border:1px solid rgba(201,168,76,.3);padding:.3rem .8rem;border-radius:20px;text-transform:uppercase}
.btn-primary{display:inline-block;background:var(--gold);color:var(--dark);font-weight:700;font-size:.9rem;padding:.85rem 2rem;border-radius:4px;letter-spacing:.05em;transition:all .25s;border:2px solid var(--gold)}
.btn-primary:hover{background:transparent;color:var(--gold);transform:translateY(-2px)}
.btn-large{padding:1rem 2.5rem;font-size:1rem}

/* BOOK COVER */
.book-cover{position:relative;display:inline-block}
.book-cover-inner{display:flex;width:220px;transform:perspective(800px) rotateY(-12deg);transform-style:preserve-3d;filter:drop-shadow(0 20px 40px rgba(0,0,0,.5))}
.book-spine{width:18px;background:linear-gradient(to right,rgba(255,255,255,.15),rgba(0,0,0,.2));border-radius:2px 0 0 2px}
.book-front{background:linear-gradient(145deg,#1a1a24,#0d0d14);border:1px solid rgba(201,168,76,.25);border-radius:0 4px 4px 0;padding:1.5rem;flex:1;text-align:center;display:flex;flex-direction:column;align-items:center;justify-content:center;min-height:300px}
.book-star{font-size:1.5rem;color:var(--gold);margin-bottom:.75rem}
.book-front h2{font-size:1.1rem;font-weight:700;color:var(--white);margin-bottom:.25rem;line-height:1.2}
.book-front p{font-size:.65rem;color(var(--gold));font-family:'Amiri',serif;margin-bottom:.75rem}
.book-author{font-size:.7rem;color:var(--text-muted);margin-top:auto;padding-top:.75rem;border-top:1px solid rgba(201,168,76,.2)}
.book-badge{position:absolute;top:-10px;right:-10px;background:var(--gold);color:var(--dark);font-size:.6rem;font-weight:700;padding:.4rem .6rem;border-radius:3px;text-align:center;line-height:1.3}

/* Hero endorsement */
.hero-visual{display:flex;flex-direction:column;align-items:center;gap:2rem;position:relative;z-index:1}
.hero-endorsement{background:rgba(201,168,76,.06);border:1px solid rgba(201,168,76,.15);border-radius:10px;padding:1.25rem 1.5rem;max-width:320px;display:flex;gap:1rem;align-items:flex-start}
.endo-avatar{width:44px;height:44px;background:var(--gold);border-radius:50%;display:flex;align-items:center;justify-content:center;font-family:'Playfair Display',serif;font-weight:700;font-size:.9rem;color:var(--dark);flex-shrink:0}
.endo-quote{font-size:.85rem;line-height:1.6;color:var(--text);font-style:italic;margin-bottom:.5rem}
.endo-name{font-size:.8rem;font-weight:600;color:var(--white)}
.endo-title{font-size:.7rem;color:var(--text-muted)}

/* ===== KATA PENGANTAR ===== */
.kata-pengantar{background:var(--dark2);padding:5rem 0;border-top:1px solid rgba(201,168,76,.1);border-bottom:1px solid rgba(201,168,76,.1)}
.kp-label{margin-bottom:2rem}
.kp-quote{font-family:'Playfair Display',serif;font-size:clamp(1.2rem,2.5vw,1.6rem);line-height:1.7;color:var(--text);font-style:italic;border-left:3px solid var(--gold);padding-left:1.5rem;margin-bottom:2rem;max-width:800px}
.kp-author{display:flex;align-items:center;gap:1rem}
.kp-avatar{width:52px;height:52px;background:linear-gradient(135deg,var(--gold),var(--gold-light));border-radius:50%;display:flex;align-items:center;justify-content:center;font-family:'Playfair Display',serif;font-weight:700;font-size:1rem;color:var(--dark);flex-shrink:0}
.kp-name{font-weight:600;color:var(--white);font-size:.95rem}
.kp-title{font-size:.8rem;color:var(--text-muted)}

/* ===== 6 PILAR ===== */
.pilar{padding:6rem 0}
.pilar .section-title{margin-bottom:.75rem}
.pilar .section-desc{margin-bottom:3rem}
.pilar-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:1.5rem}
.pilar-card{background:var(--dark2);border:1px solid rgba(201,168,76,.1);border-radius:10px;padding:2rem;position:relative;transition:all .3s}
.pilar-card:hover{border-color:rgba(201,168,76,.35);transform:translateY(-4px);box-shadow:0 12px 40px rgba(0,0,0,.4)}
.pilar-num{position:absolute;top:-1px;left:-1px;width:40px;height:40px;background:linear-gradient(135deg,var(--gold),#8a6b1e);border-radius:10px 0 0 0;display:flex;align-items:center;justify-content:center;font-family:'Playfair Display',serif;font-weight:700;font-size:.9rem;color:var(--dark)}
.pilar-card h3{font-size:1.1rem;margin-bottom:.75rem;color:var(--white)}
.pilar-card p{font-size:.875rem;color:var(--text-muted);line-height:1.7}
.pilar-meta{margin-top:1rem;font-size:.7rem;letter-spacing:.1em;color:var(--gold);text-transform:uppercase}

/* ===== MENGAPA ===== */
.mengapa{background:var(--dark2);padding:5rem 0;border-top:1px solid rgba(201,168,76,.1);border-bottom:1px solid rgba(201,168,76,.1)}
.mengapa .section-label{margin-bottom:1.5rem}
.argumen-list{display:flex;flex-direction:column;gap:1.5rem;margin:2.5rem 0}
.argumen{background:rgba(255,255,255,.03);border:1px solid rgba(255,255,255,.06);border-radius:8px;padding:1.5rem 1.75rem}
.argumen-quote{font-family:'Playfair Display',serif;font-size:1.05rem;font-style:italic;color:var(--text);margin-bottom:.5rem;line-height:1.6}
.argumen-label{font-size:.75rem;color:var(--text-muted)}
.mengapa-solusi{display:flex;align-items:center;gap:1.5rem;margin-top:2.5rem}
.solusi-line{flex:1;height:1px;background:linear-gradient(to right,transparent,var(--gold),transparent)}
.solusi-text{font-family:'Playfair Display',serif;font-size:1.05rem;text-align:center;color:var(--gold);line-height:1.6;padding:0 1rem}

/* ===== TENTANG ===== */
.tentang{padding:6rem 0}
.author-layout{display:grid;grid-template-columns:auto 1fr;gap:3rem;align-items:start;margin-top:3rem}
.author-avatar{width:140px;height:140px;background:linear-gradient(135deg,var(--dark3),var(--dark));border:2px solid rgba(201,168,76,.3);border-radius:50%;display:flex;align-items:center;justify-content:center;font-family:'Playfair Display',serif;font-size:2.5rem;font-weight:700;color:var(--gold)}
.author-info{}
.author-name{font-size:1.6rem;font-weight:700;margin-bottom:1rem;color:var(--white)}
.author-bio{font-size:.95rem;color:var(--text-muted);line-height:1.85;margin-bottom:1rem}
.author-quote{background:rgba(201,168,76,.06);border-left:3px solid var(--gold);padding:1rem 1.5rem;border-radius:0 8px 8px 0;margin:1.25rem 0}
.author-quote em{font-family:'Playfair Display',serif;font-size:1rem;color:var(--text);font-style:italic;display:block;margin-bottom:.25rem}
.author-quote span{font-size:.8rem;color:var(--text-muted)}
.author-stats{display:flex;gap:2rem;margin-top:2rem;padding-top:1.5rem;border-top:1px solid rgba(255,255,255,.07)}
.auth-stat{display:flex;flex-direction:column;gap:.25rem}
.auth-stat-num{font-family:'Playfair Display',serif;font-size:1.8rem;font-weight:700;color:var(--gold)}
.auth-stat span:last-child{font-size:.8rem;color:var(--text-muted)}

/* ===== TESTIMONI ===== */
.testimoni{background:var(--dark2);padding:6rem 0;border-top:1px solid rgba(201,168,76,.1)}
.testi-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:1.5rem;margin-top:3rem}
.testi-card{background:var(--dark);border:1px solid rgba(255,255,255,.06);border-radius:10px;padding:2rem}
.testi-stars{color:var(--gold);font-size:.9rem;letter-spacing:2px;margin-bottom:1rem}
.testi-text{font-family:'Playfair Display',serif;font-size:1rem;font-style:italic;color:var(--text);line-height:1.7;margin-bottom:1.25rem}
.testi-author{font-size:.8rem;color:var(--text-muted)}

/* ===== CTA ===== */
.cta-section{padding:6rem 0;background:linear-gradient(180deg,var(--dark) 0%,var(--dark2) 50%,var(--dark) 100%)}
.cta-inner{display:grid;grid-template-columns:auto 1fr;gap:4rem;align-items:center}
.cta-badge{font-size:.7rem;letter-spacing:.3em;color:var(--gold);text-transform:uppercase;margin-bottom:1rem}
.cta-title{font-size:clamp(1.8rem,3.5vw,2.5rem);font-weight:700;margin-bottom:1.5rem;line-height:1.2}
.cta-specs{display:flex;gap:2rem;margin-bottom:1.5rem}
.cta-spec{display:flex;flex-direction:column;align-items:center}
.cs-num{font-family:'Playfair Display',serif;font-size:2rem;font-weight:700;color:var(--gold)}
.cs-label{font-size:.7rem;color:var(--text-muted);letter-spacing:.05em}
.cta-desc{font-size:.95rem;color:var(--text-muted);line-height:1.7;margin-bottom:1.75rem}
.cta-note{margin-top:.75rem;font-size:.8rem;color:var(--gold)}

/* ===== FOOTER ===== */
.footer{padding:2.5rem 0;border-top:1px solid rgba(201,168,76,.1);text-align:center}
.footer-logo{font-family:'Playfair Display',serif;font-size:.9rem;letter-spacing:.15em;color:var(--gold);margin-bottom:.5rem}
.footer-sub{font-size:.75rem;color:var(--text-muted);margin-bottom:.5rem}
.footer-copy{font-size:.7rem;color:rgba(255,255,255,.2)}

/* ===== RESPONSIVE ===== */
@media(max-width:900px){
  .hero{grid-template-columns:1fr;padding:5rem 2rem 3rem;min-height:auto;text-align:center}
  .hero-visual{justify-content:center}
  .hero-stats{justify-content:center}
  .hero-tags{justify-content:center}
  .pilar-grid{grid-template-columns:1fr 1fr}
  .author-layout{grid-template-columns:1fr;text-align:center}
  .author-avatar{margin:0 auto}
  .testi-grid{grid-template-columns:1fr}
  .cta-inner{grid-template-columns:1fr;text-align:center}
  .cta-book{display:none}
}
@media(max-width:600px){
  .nav-links{display:none;position:absolute;top:100%;left:0;right:0;background:var(--dark);flex-direction:column;padding:1.5rem;gap:1rem;border-top:1px solid rgba(201,168,76,.1)}
  .nav-links.open{display:flex}
  .nav-hamburger{display:flex}
  .hero{padding:4rem 1.25rem 3rem}
  .section-inner{padding:0 1.25rem}
  .pilar-grid{grid-template-columns:1fr}
  .author-stats{flex-wrap:wrap;justify-content:center}
  .cta-specs{flex-wrap:wrap;justify-content:center}
  .book-cover-inner{transform:perspective(500px) rotateY(-6deg)}
  .book-cover-inner{width:180px}
  .book-front{min-height:240px}
  .hero-endorsement{max-width:100%}
}