/* =========================================================
   Tolvaris Energy Partners — Brand Stylesheet
   Premium Japanese corporate minimalist design
   ========================================================= */

:root{
  --forest:#153328;
  --forest-light:#1f4d3c;
  --forest-dark:#0d221a;
  --navy:#182540;
  --navy-light:#243457;
  --ivory:#faf8f3;
  --ivory-dark:#f1ede3;
  --gold:#c6a05c;
  --gold-light:#e3c892;
  --gold-dark:#a9824a;
  --ink:#1b2420;
  --ink-soft:#4a534c;
  --line:#e2ddcf;
  --shadow: 0 20px 50px -20px rgba(21,51,40,0.25);
}

*{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  font-family:'Zen Kaku Gothic New','Noto Sans JP',sans-serif;
  color:var(--ink);
  background:var(--ivory);
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
.font-heading{font-family:'Zen Old Mincho','Noto Serif JP',serif;}
.font-accent{font-family:'Cormorant Garamond',serif;}

/* ---------- Scrollbar ---------- */
::-webkit-scrollbar{width:10px;}
::-webkit-scrollbar-track{background:var(--ivory-dark);}
::-webkit-scrollbar-thumb{background:var(--forest);border-radius:10px;}

/* ---------- Texture / background accents ---------- */
.bg-washi{
  background-color:var(--ivory);
  background-image:
    radial-gradient(circle at 15% 10%, rgba(198,160,92,0.08) 0, transparent 45%),
    radial-gradient(circle at 85% 90%, rgba(21,51,40,0.06) 0, transparent 50%);
}
.bg-forest-deep{
  background:linear-gradient(160deg,var(--forest-dark) 0%, var(--forest) 55%, var(--navy) 100%);
}
.section-divider{
  height:1px;
  width:100%;
  background:linear-gradient(90deg, transparent, var(--gold) 50%, transparent);
  opacity:.6;
}

/* ---------- Logo mark ---------- */
.tp-logo-mark{display:inline-flex;align-items:center;gap:.65rem;}
.tp-logo-mark img{height:40px;width:auto;display:block;}
.tp-logo-word{font-family:'Cormorant Garamond',serif;letter-spacing:.04em;line-height:1.05;}
.tp-logo-word b{display:block;font-size:1.05rem;font-weight:600;color:var(--forest-dark);}
.tp-logo-word span{display:block;font-size:.58rem;letter-spacing:.22em;color:var(--gold-dark);text-transform:uppercase;}
.tp-logo-mark.is-light .tp-logo-word b{color:var(--ivory);}
.tp-logo-mark.is-light .tp-logo-word span{color:var(--gold-light);}

/* ---------- Header ---------- */
#site-header{
  position:sticky;top:0;z-index:50;
  background:rgba(250,248,243,0.9);
  backdrop-filter:blur(10px);
  border-bottom:1px solid var(--line);
  transition:box-shadow .35s ease, background .35s ease;
}
#site-header.is-scrolled{box-shadow:0 10px 30px -15px rgba(21,51,40,.25);}

.nav-link{
  position:relative;
  font-size:.92rem;
  letter-spacing:.02em;
  color:var(--ink);
  padding:.4rem .2rem;
  transition:color .25s ease;
}
.nav-link::after{
  content:'';position:absolute;left:0;bottom:-2px;width:0;height:1px;
  background:var(--gold-dark);transition:width .3s ease;
}
.nav-link:hover,.nav-link.is-active{color:var(--forest);}
.nav-link:hover::after,.nav-link.is-active::after{width:100%;}

.dropdown-panel{
  opacity:0;visibility:hidden;transform:translateY(8px);
  transition:opacity .25s ease, transform .25s ease, visibility .25s ease;
}
.has-dropdown:hover .dropdown-panel, .has-dropdown:focus-within .dropdown-panel{
  opacity:1;visibility:visible;transform:translateY(0);
}

.btn-gold{
  display:inline-flex;align-items:center;justify-content:center;gap:.5rem;
  background:var(--forest);color:var(--ivory);
  padding:.75rem 1.9rem;border-radius:2px;font-size:.9rem;letter-spacing:.05em;
  border:1px solid var(--forest);
  transition:background .3s ease, color .3s ease, border-color .3s ease, transform .25s ease;
}
.btn-gold:hover{background:var(--gold-dark);border-color:var(--gold-dark);color:#fff;transform:translateY(-2px);}
.btn-outline{
  display:inline-flex;align-items:center;justify-content:center;gap:.5rem;
  background:transparent;color:var(--ivory);
  padding:.75rem 1.9rem;border-radius:2px;font-size:.9rem;letter-spacing:.05em;
  border:1px solid rgba(250,248,243,.45);
  transition:all .3s ease;
}
.btn-outline:hover{background:rgba(250,248,243,.12);border-color:var(--ivory);}
.btn-outline-dark{
  display:inline-flex;align-items:center;justify-content:center;gap:.5rem;
  background:transparent;color:var(--forest);
  padding:.75rem 1.9rem;border-radius:2px;font-size:.9rem;letter-spacing:.05em;
  border:1px solid var(--forest);
  transition:all .3s ease;
}
.btn-outline-dark:hover{background:var(--forest);color:var(--ivory);}

/* ---------- Mobile nav ---------- */
#mobile-nav{
  max-height:0;overflow:hidden;transition:max-height .4s ease;
  background:var(--ivory);border-top:1px solid var(--line);
}
#mobile-nav.open{max-height:85vh;overflow-y:auto;}

/* ---------- Hero ---------- */
.hero-shell{position:relative;overflow:hidden;color:var(--ivory);}
.hero-shell img{width:100%;height:100%;object-fit:cover;position:absolute;inset:0;transform:scale(1.04);}
.hero-overlay{
  position:absolute;inset:0;
  background:linear-gradient(170deg, rgba(13,34,26,.82) 0%, rgba(13,34,26,.55) 45%, rgba(24,37,64,.72) 100%);
}
.eyebrow{
  display:inline-flex;align-items:center;gap:.6rem;
  font-size:.76rem;letter-spacing:.3em;text-transform:uppercase;color:var(--gold-light);
}
.eyebrow::before{content:'';width:28px;height:1px;background:var(--gold-light);}

/* ---------- Reveal animation ---------- */
.reveal{opacity:0;transform:translateY(26px);transition:opacity .8s ease, transform .8s ease;}
.reveal.is-visible{opacity:1;transform:translateY(0);}
.reveal-delay-1.is-visible{transition-delay:.12s;}
.reveal-delay-2.is-visible{transition-delay:.24s;}
.reveal-delay-3.is-visible{transition-delay:.36s;}

/* ---------- Cards ---------- */
.tp-card{
  background:#fff;border:1px solid var(--line);
  transition:transform .35s ease, box-shadow .35s ease, border-color .35s ease;
}
.tp-card:hover{transform:translateY(-6px);box-shadow:var(--shadow);border-color:var(--gold-light);}
.img-zoom{overflow:hidden;}
.img-zoom img{transition:transform .7s ease;}
.img-zoom:hover img{transform:scale(1.08);}

.tp-tag{
  display:inline-block;font-size:.72rem;letter-spacing:.14em;color:var(--forest);
  background:rgba(21,51,40,.07);padding:.3rem .8rem;border-radius:2px;
}

.num-badge{
  font-family:'Cormorant Garamond',serif;color:var(--gold-dark);font-size:2.1rem;line-height:1;
}

/* ---------- Footer ---------- */
footer a{transition:color .25s ease;}
footer a:hover{color:var(--gold-light);}

/* ---------- Toast (non-blocking popups) ---------- */
#tp-toast-wrap{
  position:fixed;bottom:1.5rem;right:1.5rem;z-index:9999;
  display:flex;flex-direction:column;gap:.75rem;
  width:min(360px, calc(100vw - 2rem));
}
.tp-toast{
  background:var(--forest-dark);color:var(--ivory);
  border-left:3px solid var(--gold);
  padding:1rem 1.1rem;border-radius:3px;box-shadow:0 15px 35px -10px rgba(0,0,0,.4);
  font-size:.88rem;line-height:1.55;
  display:flex;gap:.7rem;align-items:flex-start;
  opacity:0;transform:translateX(30px);
  transition:opacity .35s ease, transform .35s ease;
}
.tp-toast.show{opacity:1;transform:translateX(0);}
.tp-toast.error{border-left-color:#c0604a;}
.tp-toast .tp-toast-close{cursor:pointer;color:var(--gold-light);margin-left:auto;font-size:1rem;line-height:1;}
.tp-toast .tp-toast-icon{color:var(--gold-light);flex-shrink:0;margin-top:.1rem;}

/* ---------- Back to top ---------- */
#back-to-top{
  position:fixed;bottom:1.5rem;left:1.5rem;z-index:40;
  width:46px;height:46px;border-radius:50%;
  background:var(--forest);color:var(--ivory);
  display:flex;align-items:center;justify-content:center;
  opacity:0;visibility:hidden;transform:translateY(10px);
  transition:opacity .3s ease, transform .3s ease, visibility .3s ease;
  box-shadow:0 10px 25px -8px rgba(21,51,40,.5);
}
#back-to-top.show{opacity:1;visibility:visible;transform:translateY(0);}

/* ---------- FAQ accordion ---------- */
.faq-item{border-bottom:1px solid var(--line);}
.faq-q{
  cursor:pointer;display:flex;align-items:center;justify-content:space-between;
  padding:1.3rem 0;font-weight:500;gap:1rem;
}
.faq-q .icon{transition:transform .3s ease;color:var(--gold-dark);flex-shrink:0;}
.faq-item.open .faq-q .icon{transform:rotate(45deg);}
.faq-a{max-height:0;overflow:hidden;transition:max-height .4s ease;}
.faq-a-inner{padding:0 0 1.5rem;color:var(--ink-soft);line-height:1.9;}

/* ---------- Forms ---------- */
.tp-field label{font-size:.82rem;letter-spacing:.05em;color:var(--ink-soft);margin-bottom:.4rem;display:block;}
.tp-field input,.tp-field select,.tp-field textarea{
  width:100%;border:1px solid var(--line);background:#fff;
  padding:.75rem .9rem;font-size:.92rem;color:var(--ink);
  transition:border-color .25s ease, box-shadow .25s ease;
}
.tp-field input:focus,.tp-field select:focus,.tp-field textarea:focus{
  outline:none;border-color:var(--gold-dark);box-shadow:0 0 0 3px rgba(198,160,92,.18);
}
.tp-field .err{color:#b1503a;font-size:.78rem;margin-top:.35rem;display:none;}
.tp-field.has-error input,.tp-field.has-error select,.tp-field.has-error textarea{border-color:#b1503a;}
.tp-field.has-error .err{display:block;}

/* ---------- Misc ---------- */
.breadcrumb a{color:var(--ink-soft);}
.breadcrumb a:hover{color:var(--forest);}
.marquee-line{
  white-space:nowrap;overflow:hidden;border-top:1px solid var(--line);border-bottom:1px solid var(--line);
}
.marquee-track{display:inline-flex;animation:tp-marquee 32s linear infinite;}
@keyframes tp-marquee{from{transform:translateX(0);}to{transform:translateX(-50%);}}

@media (prefers-reduced-motion: reduce){
  .reveal{opacity:1;transform:none;}
  .marquee-track{animation:none;}
}

.skip-link{position:absolute;left:-9999px;top:0;z-index:200;background:#fff;color:#153328;padding:.75rem 1.25rem;font-weight:700;}
.skip-link:focus{left:.5rem;top:.5rem;}
footer li a,footer .flex a{display:inline-block;padding-block:.4rem;}