/* ============================================================
   TSUDULY - Premium SaaS Website CSS v3
   ============================================================ */
:root{
  --green:#32B243;--dark:#0C400F;--accent:#127026;
  --bg-light:#EFF9EF;--text:#1A1A1A;--mid:#555;
  --white:#fff;--border:#E8E8E8;
  --font:'Noto Sans JP','Inter',sans-serif;
  --ease:.3s ease;--shadow:0 4px 24px rgba(0,0,0,.08);--shadow-lg:0 12px 48px rgba(0,0,0,.14);
}
*{margin:0;padding:0;box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{font-family:var(--font);color:var(--text);background:var(--white);line-height:1.7;-webkit-font-smoothing:antialiased;}
a{text-decoration:none;color:inherit;}
img{max-width:100%;height:auto;display:block;}

/* ===== BUTTONS ===== */
.btn{display:inline-block;padding:15px 36px;border-radius:6px;font-weight:700;font-size:15px;letter-spacing:.03em;transition:all .2s ease;cursor:pointer;border:2px solid transparent;}
.btn-white{background:var(--white);color:var(--dark);}
.btn-white:hover{background:#f0f0f0;transform:translateY(-2px);box-shadow:0 8px 24px rgba(255,255,255,.25);}
.btn-outline{background:transparent;color:var(--white);border-color:rgba(255,255,255,.6);}
.btn-outline:hover{background:rgba(255,255,255,.1);transform:translateY(-2px);}
.btn-green{background:var(--green);color:var(--white);border-color:var(--green);}
.btn-green:hover{background:var(--accent);transform:translateY(-2px);box-shadow:0 8px 28px rgba(50,178,67,.35);}

/* ===== NAV ===== */
.nav{position:sticky;top:0;z-index:100;background:rgba(255,255,255,.97);backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);border-bottom:1px solid rgba(0,0,0,.05);transition:box-shadow var(--ease);}
.nav.scrolled{box-shadow:0 2px 20px rgba(0,0,0,.08);}
.nav__inner{max-width:1320px;margin:0 auto;padding:0 48px;height:72px;display:flex;align-items:center;justify-content:space-between;gap:32px;}
.nav__logo img{height:28px;width:auto;}
.nav__menu{display:flex;align-items:center;gap:36px;}
.nav__menu a{color:var(--mid);font-size:14px;font-weight:500;transition:color .2s;}
.nav__menu a:hover{color:var(--green);}
.nav__btn{background:var(--green)!important;color:var(--white)!important;padding:9px 22px;border-radius:6px;font-weight:600!important;}
.nav__btn:hover{background:var(--accent)!important;}
.nav__hamburger{display:none;flex-direction:column;gap:5px;background:none;border:none;cursor:pointer;padding:6px;}
.nav__hamburger span{width:22px;height:2px;background:var(--text);border-radius:2px;transition:all .3s;}
.nav__hamburger.active span:nth-child(1){transform:rotate(45deg) translate(9px,9px);}
.nav__hamburger.active span:nth-child(2){opacity:0;}
.nav__hamburger.active span:nth-child(3){transform:rotate(-45deg) translate(6px,-6px);}

/* ===== HERO ===== */
.hero{background:linear-gradient(135deg,var(--dark) 0%,#1a6b2a 100%);color:var(--white);padding:100px 0 80px;overflow:hidden;position:relative;}
.hero::after{content:'';position:absolute;top:0;right:0;width:50%;height:100%;background:radial-gradient(ellipse at 80% 50%,rgba(50,178,67,.15) 0%,transparent 70%);pointer-events:none;}
.hero__inner{max-width:1320px;margin:0 auto;padding:0 48px;display:grid;grid-template-columns:1fr 1fr;gap:64px;align-items:center;position:relative;z-index:1;}
.hero__eyebrow{font-size:13px;font-weight:600;letter-spacing:.12em;text-transform:uppercase;color:rgba(255,255,255,.6);margin-bottom:20px;}
.hero__title{font-size:68px;font-weight:700;line-height:1.15;letter-spacing:-1.5px;margin-bottom:24px;}
.hero__sub{font-size:17px;color:rgba(255,255,255,.8);line-height:1.8;margin-bottom:36px;}
.hero__ctas{display:flex;gap:16px;flex-wrap:wrap;margin-bottom:40px;}
.hero__badges{display:flex;flex-wrap:wrap;gap:10px;}
.badge{background:rgba(255,255,255,.1);border:1px solid rgba(255,255,255,.18);backdrop-filter:blur(8px);padding:7px 14px;border-radius:6px;font-size:12px;color:rgba(255,255,255,.88);font-weight:500;}
.hero__image{position:relative;}
.hero__screenshot{border-radius:12px;box-shadow:0 32px 80px rgba(0,0,0,.5);transform:perspective(1000px) rotateY(-6deg) rotateX(2deg);transition:transform .4s ease;}
.hero__screenshot:hover{transform:perspective(1000px) rotateY(-3deg) rotateX(1deg);}

/* ===== IMPACT ===== */
.impact{padding:72px 0;border-bottom:1px solid var(--border);}
.impact__inner{max-width:1000px;margin:0 auto;padding:0 48px;display:grid;grid-template-columns:1fr auto 1fr auto 1fr;align-items:center;gap:32px;text-align:center;}
.impact__num{font-size:52px;font-weight:700;color:var(--green);letter-spacing:-1px;line-height:1.1;margin-bottom:8px;font-family:'Inter',sans-serif;}
.impact__label{font-size:14px;color:var(--mid);font-weight:500;line-height:1.5;}
.impact__note{font-size:11px;color:#aaa;font-weight:400;}
.impact__divider{width:1px;height:60px;background:var(--border);}

/* ===== SECTION BASE ===== */
.section{padding:112px 0;}
.bg-light{background:var(--bg-light);}
.inner{max-width:1200px;margin:0 auto;padding:0 48px;}
.inner--narrow{max-width:800px;margin:0 auto;padding:0 48px;}
.section-head{margin-bottom:64px;}
.section-title{font-size:44px;font-weight:700;line-height:1.2;letter-spacing:-.5px;margin-bottom:16px;}
.section-title--white{color:var(--white);}
.section-lead{font-size:17px;color:var(--mid);line-height:1.75;max-width:640px;}
.section-lead--white{color:rgba(255,255,255,.75);}

/* ===== REVEAL ANIMATION ===== */
.reveal{opacity:1;transform:none;}
@media (prefers-reduced-motion: no-preference) {
  .reveal{opacity:0;transform:translateY(24px);transition:opacity .6s ease,transform .6s ease;}
  .reveal.visible{opacity:1;transform:none;}
}

/* ===== CHALLENGE ===== */
.challenge-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:28px;}
.challenge-card{background:var(--white);border-radius:16px;padding:36px 32px;box-shadow:0 2px 12px rgba(0,0,0,.05);border-left:4px solid var(--green);transition:all .25s ease;}
.challenge-card:hover{transform:translateY(-6px);box-shadow:var(--shadow-lg);}
.challenge-card__icon{width:52px;height:52px;background:var(--bg-light);border-radius:12px;display:flex;align-items:center;justify-content:center;margin-bottom:20px;}
.challenge-card__title{font-size:18px;font-weight:700;margin-bottom:12px;}
.challenge-card__text{font-size:14px;color:var(--mid);line-height:1.75;}

/* ===== SOLUTION / PHASES ===== */
.phase{display:grid;grid-template-columns:1fr 1fr;gap:72px;align-items:center;padding:56px 0;border-bottom:1px solid var(--border);}
.phase:last-child{border-bottom:none;}
.phase--reverse{direction:rtl;}
.phase--reverse>*{direction:ltr;}
.phase__num{font-size:80px;font-weight:700;color:var(--green);line-height:1;margin-bottom:16px;font-family:'Inter',sans-serif;opacity:.9;}
.phase__title{font-size:30px;font-weight:700;margin-bottom:16px;}
.phase__text{font-size:15px;color:var(--mid);line-height:1.8;margin-bottom:24px;}
.phase__tags{display:flex;gap:10px;flex-wrap:wrap;}
.tag{background:var(--bg-light);color:var(--accent);border:1px solid rgba(50,178,67,.3);padding:7px 14px;border-radius:6px;font-size:12px;font-weight:600;}
.phase__image img{border-radius:12px;box-shadow:var(--shadow-lg);}
.phase__image--mock{display:flex;align-items:center;justify-content:center;}

/* Maintain mock */
.maintain-mock{background:#1e2235;border-radius:16px;padding:28px;width:100%;max-width:400px;box-shadow:var(--shadow-lg);}
.maintain-mock__header{color:rgba(255,255,255,.6);font-size:12px;font-weight:600;text-transform:uppercase;letter-spacing:.08em;margin-bottom:20px;}
.maintain-mock__chart{display:flex;align-items:flex-end;gap:10px;height:120px;margin-bottom:16px;}
.chart-bar{flex:1;background:rgba(255,255,255,.12);border-radius:6px 6px 0 0;display:flex;align-items:flex-end;justify-content:center;padding-bottom:6px;transition:height .5s ease;}
.chart-bar--active{background:var(--green);}
.chart-bar span{color:rgba(255,255,255,.6);font-size:10px;}
.chart-bar--active span{color:var(--white);}
.maintain-mock__score{color:var(--white);font-size:16px;margin-bottom:12px;}
.maintain-mock__score strong{color:var(--green);font-size:20px;}
.maintain-mock__badges{display:flex;gap:8px;}
.mbadge{font-size:12px;font-weight:600;padding:5px 10px;border-radius:6px;}
.mbadge--ok{background:rgba(50,178,67,.2);color:var(--green);}
.mbadge--warn{background:rgba(255,160,0,.2);color:#ffa000;}

/* ===== FEATURES GRID ===== */
.features-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.feat-card{background:var(--white);border-radius:14px;padding:32px 28px;box-shadow:0 2px 10px rgba(0,0,0,.05);border:1px solid rgba(0,0,0,.04);transition:all .25s ease;}
.feat-card:hover{transform:translateY(-5px);box-shadow:var(--shadow);}
.feat-card__icon{width:48px;height:48px;background:var(--bg-light);border-radius:10px;display:flex;align-items:center;justify-content:center;margin-bottom:16px;color:var(--green);}
.feat-card h3{font-size:16px;font-weight:700;margin-bottom:8px;}
.feat-card p{font-size:13px;color:var(--mid);line-height:1.7;}

/* ===== COST COMPARE ===== */
.cost-section{background:var(--white);}
.cost-compare{display:grid;grid-template-columns:1fr auto 1fr;gap:40px;align-items:center;background:var(--bg-light);border-radius:20px;padding:56px 48px;}
.cost-col__label{font-size:13px;font-weight:700;text-transform:uppercase;letter-spacing:.08em;color:var(--mid);margin-bottom:12px;}
.cost-col__amount{font-size:52px;font-weight:700;line-height:1.1;margin-bottom:12px;font-family:'Inter',sans-serif;}
.cost-col--before .cost-col__amount{color:#aaa;}
.cost-col--after .cost-col__amount{color:var(--green);}
.cost-col__note{font-size:13px;color:var(--mid);margin-bottom:16px;}
.cost-col__list{list-style:none;font-size:13px;color:var(--mid);display:flex;flex-direction:column;gap:6px;}
.cost-col__list li::before{content:"—  ";}
.cost-saving{background:rgba(50,178,67,.1);border:1px solid rgba(50,178,67,.3);border-radius:8px;padding:12px 16px;font-size:15px;color:var(--green);margin-bottom:16px;}
.cost-vs{display:flex;align-items:center;justify-content:center;}

/* ===== PRICING ===== */
.pricing-section{background:var(--dark);text-align:center;}
.pricing-box{display:flex;justify-content:center;align-items:center;gap:40px;background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.12);border-radius:20px;padding:48px 56px;margin:48px 0;flex-wrap:wrap;}
.pricing-item{flex:1;min-width:200px;}
.pricing-item__label{font-size:13px;font-weight:600;text-transform:uppercase;letter-spacing:.1em;color:rgba(255,255,255,.55);margin-bottom:12px;}
.pricing-item__price{font-size:56px;font-weight:700;color:var(--white);line-height:1;font-family:'Inter',sans-serif;}
.pricing-item__unit{font-size:18px;font-weight:400;color:rgba(255,255,255,.7);}
.pricing-item__note{font-size:13px;color:rgba(255,255,255,.5);margin-top:8px;}
.pricing-plus{font-size:28px;color:rgba(255,255,255,.25);font-weight:300;}
.pricing-includes{display:grid;grid-template-columns:repeat(2,1fr);gap:14px;background:rgba(255,255,255,.05);border-radius:12px;padding:32px 40px;margin:0 auto 40px;max-width:640px;}
.pricing-includes__item{display:flex;align-items:center;gap:10px;color:rgba(255,255,255,.85);font-size:14px;}

/* ===== FAQ ===== */
.faq-list{display:flex;flex-direction:column;gap:10px;}
.faq-item{background:var(--white);border:1px solid var(--border);border-radius:12px;overflow:hidden;transition:all .25s ease;}
.faq-item[open]{box-shadow:var(--shadow);border-color:var(--green);}
.faq-q{padding:22px 28px;cursor:pointer;font-size:16px;font-weight:600;display:flex;justify-content:space-between;align-items:center;user-select:none;list-style:none;transition:background .2s;}
.faq-q:hover{background:var(--bg-light);}
.faq-q::after{content:'+';font-size:22px;color:var(--green);font-weight:300;flex-shrink:0;transition:transform .25s;}
.faq-item[open] .faq-q::after{transform:rotate(45deg);}
.faq-a{padding:0 28px 22px;color:var(--mid);line-height:1.75;font-size:14px;}

/* ===== CONTACT ===== */
.contact-form-wrap{background:var(--white);border-radius:20px;box-shadow:var(--shadow);padding:48px;}
.contact-form{display:flex;flex-direction:column;gap:20px;}
.form-row{display:flex;gap:20px;}
.form-row--2>*{flex:1;}
.form-group{display:flex;flex-direction:column;gap:6px;}
.form-group label{font-weight:600;font-size:14px;color:var(--text);}
.required{color:var(--green);margin-left:3px;}
.form-group input,.form-group textarea{padding:12px 16px;border:1.5px solid var(--border);border-radius:8px;font-family:var(--font);font-size:15px;color:var(--text);transition:border-color .2s;}
.form-group input:focus,.form-group textarea:focus{outline:none;border-color:var(--green);box-shadow:0 0 0 3px rgba(50,178,67,.1);}
.form-submit{width:100%;padding:16px;}

/* ===== FOOTER ===== */
.footer{background:var(--dark);color:var(--white);padding:56px 0 28px;}
.footer__inner{max-width:1200px;margin:0 auto;padding:0 48px;}
.footer__top{display:flex;justify-content:space-between;align-items:flex-start;padding-bottom:40px;border-bottom:1px solid rgba(255,255,255,.1);margin-bottom:28px;gap:40px;flex-wrap:wrap;}
.footer__logo{font-size:22px;font-weight:700;letter-spacing:-0.5px;margin-bottom:8px;}
.footer__tagline{font-size:13px;color:rgba(255,255,255,.5);}
.footer__links{display:flex;gap:28px;flex-wrap:wrap;}
.footer__links a{font-size:13px;color:rgba(255,255,255,.55);transition:color .2s;}
.footer__links a:hover{color:var(--green);}
.footer__bottom{display:flex;justify-content:space-between;flex-wrap:wrap;gap:8px;font-size:12px;color:rgba(255,255,255,.4);}
.footer__bottom a{color:var(--green);}

/* ===== MOBILE ===== */
@media(max-width:1024px){
  .hero__inner{grid-template-columns:1fr;gap:48px;}
  .hero__title{font-size:52px;}
  .phase{grid-template-columns:1fr;gap:40px;}
  .phase--reverse{direction:ltr;}
  .features-grid{grid-template-columns:repeat(2,1fr);}
  .challenge-grid{grid-template-columns:1fr;}
  .cost-compare{grid-template-columns:1fr;gap:24px;}
  .cost-vs{display:none;}
}
@media(max-width:768px){
  .nav__inner{padding:0 24px;}
  .nav__menu{display:none;position:fixed;top:72px;left:0;right:0;background:var(--white);flex-direction:column;padding:24px;gap:16px;box-shadow:var(--shadow);border-top:1px solid var(--border);}
  .nav__menu.open{display:flex;}
  .nav__hamburger{display:flex;}
  .hero{padding:72px 0 56px;}
  .hero__inner{padding:0 24px;}
  .hero__title{font-size:40px;}
  .hero__ctas{flex-direction:column;}
  .hero__ctas .btn{width:100%;text-align:center;}
  .impact__inner{grid-template-columns:1fr;gap:24px;padding:0 24px;}
  .impact__divider{width:60px;height:1px;}
  .impact__num{font-size:40px;}
  .section{padding:72px 0;}
  .inner,.inner--narrow{padding:0 24px;}
  .section-title{font-size:30px;}
  .features-grid{grid-template-columns:1fr;}
  .pricing-box{padding:32px 24px;}
  .pricing-item__price{font-size:40px;}
  .pricing-includes{grid-template-columns:1fr;padding:24px;}
  .contact-form-wrap{padding:28px 20px;}
  .form-row--2{flex-direction:column;}
  .footer__inner{padding:0 24px;}
  .footer__top{flex-direction:column;}
  .footer__bottom{flex-direction:column;gap:4px;}
}