/* ============================================================
   PhotoMotto — Main Stylesheet
   ============================================================ */

/* --- Google Fonts --- */
@import url('https://fonts.googleapis.com/css2?family=Cormorant+Garamond:wght@400;600;700&family=Noto+Serif+JP:wght@400;500;700&family=Noto+Sans+JP:wght@300;400;500&family=Inter:wght@400;500;600&display=swap');

/* --- Design Tokens --- */
:root {
  --clr-primary:        #B76E79;
  --clr-primary-light:  #C4848E;
  --clr-secondary:      #B76E79;
  --clr-secondary-light:#E8B4BC;
  --clr-bg:             #1A1A1A;
  --clr-bg-alt:         #242424;
  --clr-surface:        #2E2E2E;
  --clr-surface2:       #383838;
  --clr-text:           #F8F8F8;
  --clr-text-sub:       #BDBDBD;
  --clr-accent:         #B76E79;
  --clr-border:         rgba(183, 110, 121, 0.35);

  --ff-serif-en: 'Cormorant Garamond', serif;
  --ff-serif-ja: 'Noto Serif JP', serif;
  --ff-sans:     'Noto Sans JP', sans-serif;
  --ff-ui:       'Inter', sans-serif;

  --radius: 12px;
  --radius-sm: 6px;
  --transition: 0.3s cubic-bezier(0.4,0,0.2,1);
  --shadow: 0 8px 32px rgba(0,0,0,0.4);
  --shadow-gold: 0 0 24px rgba(183, 110, 121, 0.3);
}

/* --- Reset --- */
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0;}
html{scroll-behavior:smooth;font-size:16px;}
body{background:var(--clr-bg);color:var(--clr-text);font-family:var(--ff-sans);line-height:1.7;overflow-x:hidden;}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;}
ul{list-style:none;}
button{cursor:pointer;border:none;background:none;font:inherit;}

/* --- Utilities --- */
.container{max-width:1120px;margin:0 auto;padding:0 24px;}
.section{padding:96px 0;}
.section--alt{background:var(--clr-bg-alt);}
.section-label{display:inline-block;font-family:var(--ff-ui);font-size:0.75rem;letter-spacing:0.2em;text-transform:uppercase;color:var(--clr-secondary);margin-bottom:12px;}
.section-title{font-family:var(--ff-serif-ja);font-size:clamp(1.75rem,4vw,2.5rem);font-weight:700;line-height:1.3;margin-bottom:16px;}
.section-title span{color:var(--clr-secondary);}
.section-desc{color:var(--clr-text-sub);max-width:600px;font-size:0.95rem;}
.gold-line{width:48px;height:2px;background:linear-gradient(90deg,var(--clr-secondary),var(--clr-secondary-light));margin-bottom:24px;}
.fade-in{opacity:0;transform:translateY(28px);transition:opacity 0.7s var(--transition),transform 0.7s var(--transition);}
.fade-in.visible{opacity:1;transform:none;}

/* --- Buttons --- */
.btn{display:inline-flex;align-items:center;gap:8px;padding:14px 32px;border-radius:40px;font-family:var(--ff-ui);font-size:0.9rem;font-weight:600;letter-spacing:0.05em;transition:var(--transition);position:relative;overflow:hidden;}
.btn-primary{background:linear-gradient(135deg,var(--clr-primary),var(--clr-accent));color:#fff;box-shadow:0 4px 20px rgba(233,69,96,0.35);}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 8px 28px rgba(233,69,96,0.5);}
.btn-outline{border:1.5px solid var(--clr-secondary);color:var(--clr-secondary);}
.btn-outline:hover{background:var(--clr-secondary);color:var(--clr-bg);}
.btn-gold{background:linear-gradient(135deg,var(--clr-secondary),var(--clr-secondary-light));color:var(--clr-bg);font-weight:700;}
.btn-gold:hover{transform:translateY(-2px);box-shadow:var(--shadow-gold);}

/* ============================================================
   HEADER
   ============================================================ */
#header{position:fixed;top:0;left:0;right:0;z-index:1000;transition:background var(--transition),backdrop-filter var(--transition);}
#header.scrolled{background:rgba(31,39,45,0.85);backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);border-bottom:1px solid var(--clr-border);}
.header-inner{display:flex;align-items:center;justify-content:space-between;height:72px;}
.header-logo img{height:36px;width:auto;}
.header-nav{display:flex;align-items:center;gap:32px;}
.header-nav a{font-family:var(--ff-ui);font-size:0.875rem;font-weight:500;color:var(--clr-text-sub);transition:color var(--transition);}
.header-nav a:hover{color:var(--clr-secondary);}
.hamburger{display:none;flex-direction:column;gap:5px;width:28px;padding:4px;}
.hamburger span{display:block;height:2px;background:var(--clr-text);border-radius:2px;transition:var(--transition);}
.hamburger.active span:nth-child(1){transform:rotate(45deg) translate(5px,5px);}
.hamburger.active span:nth-child(2){opacity:0;}
.hamburger.active span:nth-child(3){transform:rotate(-45deg) translate(5px,-5px);}
.mobile-menu{display:none;position:fixed;inset:0;background:var(--clr-bg);z-index:999;flex-direction:column;align-items:center;justify-content:center;gap:40px;}
.mobile-menu.open{display:flex;}
.mobile-menu a{font-family:var(--ff-serif-ja);font-size:1.5rem;color:var(--clr-text);}
.mobile-menu a:hover{color:var(--clr-secondary);}

/* ============================================================
   HERO
   ============================================================ */
#hero{position:relative;height:100svh;min-height:600px;display:flex;align-items:center;justify-content:center;overflow:hidden;}
.hero-bg{position:absolute;inset:0;background-size:cover;background-position:center;filter:brightness(0.35);}
.hero-overlay{position:absolute;inset:0;background:linear-gradient(to bottom,rgba(31,39,45,0.3) 0%,rgba(31,39,45,0.75) 100%);}
.hero-content{position:relative;text-align:center;padding:0 24px;}
.hero-label{font-family:var(--ff-ui);font-size:0.75rem;letter-spacing:0.3em;text-transform:uppercase;color:var(--clr-secondary);margin-bottom:16px;}
.hero-title{font-family:var(--ff-serif-ja);font-size:clamp(2.5rem,8vw,5rem);font-weight:700;line-height:1.2;margin-bottom:20px;}
.hero-title .en{font-family:var(--ff-serif-en);font-size:clamp(1rem,3vw,1.5rem);display:block;color:var(--clr-secondary-light);font-weight:600;letter-spacing:0.15em;margin-bottom:8px;}
.hero-sub{font-size:clamp(0.9rem,2vw,1.05rem);color:var(--clr-text-sub);margin-bottom:40px;}
.hero-cta{display:flex;gap:16px;justify-content:center;flex-wrap:wrap;}
.hero-scroll{position:absolute;bottom:32px;left:50%;transform:translateX(-50%);display:flex;flex-direction:column;align-items:center;gap:8px;color:var(--clr-text-sub);font-size:0.7rem;letter-spacing:0.15em;}
.scroll-arrow{width:1px;height:48px;background:linear-gradient(to bottom,transparent,var(--clr-secondary));animation:scrollArrow 1.8s ease-in-out infinite;}
@keyframes scrollArrow{0%,100%{opacity:0;transform:scaleY(0.3) translateY(-10px);}50%{opacity:1;transform:scaleY(1) translateY(0);}}

/* ============================================================
   ABOUT
   ============================================================ */
#about .about-grid{display:grid;grid-template-columns:1fr 1fr;gap:64px;align-items:center;margin-top:48px;}
.about-logo img{width:220px;margin:0 auto;filter:drop-shadow(0 8px 24px rgba(197,152,62,0.3));}
.about-scenes{display:flex;flex-wrap:wrap;gap:10px;margin-top:24px;}
.scene-tag{display:inline-flex;align-items:center;gap:6px;padding:6px 14px;border:1px solid var(--clr-border);border-radius:20px;font-size:0.8rem;color:var(--clr-text-sub);}

/* ============================================================
   SERVICES
   ============================================================ */
#services .services-grid{display:grid;grid-template-columns:1fr 1fr;gap:32px;margin-top:48px;}
.service-card{background:var(--clr-surface);border:1px solid var(--clr-border);border-radius:var(--radius);overflow:hidden;transition:transform var(--transition),box-shadow var(--transition);}
.service-card:hover{transform:translateY(-6px);box-shadow:var(--shadow),var(--shadow-gold);}
.service-card-img{aspect-ratio:4/3;overflow:hidden;}
.service-card-img img{width:100%;height:100%;object-fit:cover;transition:transform 0.5s;}
.service-card:hover .service-card-img img{transform:scale(1.04);}
.service-card-body{padding:28px;}
.service-card-label{font-size:0.7rem;letter-spacing:0.2em;text-transform:uppercase;color:var(--clr-secondary);margin-bottom:8px;}
.service-card-title{font-family:var(--ff-serif-ja);font-size:1.4rem;font-weight:700;margin-bottom:12px;}
.service-card-desc{font-size:0.875rem;color:var(--clr-text-sub);line-height:1.8;margin-bottom:20px;}

/* ============================================================
   GALLERY
   ============================================================ */
#gallery .gallery-tabs{display:flex;gap:4px;margin:40px 0 28px;background:var(--clr-surface);padding:4px;border-radius:40px;width:fit-content;}
.gallery-tab{padding:10px 28px;border-radius:36px;font-family:var(--ff-ui);font-size:0.875rem;font-weight:500;color:var(--clr-text-sub);transition:var(--transition);}
.gallery-tab.active{background:linear-gradient(135deg,var(--clr-primary),var(--clr-accent));color:#fff;}
.gallery-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(260px,1fr));gap:16px;}
.gallery-item{position:relative;aspect-ratio:1;overflow:hidden;border-radius:var(--radius-sm);cursor:zoom-in;background:var(--clr-surface);}
.gallery-item img{width:100%;height:100%;object-fit:cover;transition:transform 0.4s;}
.gallery-item:hover img{transform:scale(1.06);}
.gallery-item-overlay{position:absolute;inset:0;background:rgba(0,0,0,0.45);display:flex;align-items:center;justify-content:center;opacity:0;transition:opacity var(--transition);}
.gallery-item:hover .gallery-item-overlay{opacity:1;}
.zoom-icon{color:#fff;font-size:2rem;}
.gallery-note{margin-top:16px;font-size:0.8rem;color:var(--clr-text-sub);display:flex;align-items:center;gap:8px;}

/* Gallery Modal */
#gallery-modal{display:none;position:fixed;inset:0;z-index:2000;background:rgba(0,0,0,0.95);flex-direction:column;}
#gallery-modal.active{display:flex;}
.modal-header{display:flex;align-items:center;justify-content:space-between;padding:16px 24px;flex-shrink:0;}
.modal-title{font-family:var(--ff-serif-ja);font-size:0.95rem;color:var(--clr-text-sub);}
.modal-close{color:#fff;font-size:1.8rem;width:40px;height:40px;display:flex;align-items:center;justify-content:center;border-radius:50%;background:rgba(255,255,255,0.1);transition:background var(--transition);cursor:pointer;z-index:2010;}
.modal-close:hover{background:var(--clr-accent);}
#osd-viewer{flex:1;width:100%;}
.modal-hint{text-align:center;padding:10px;font-size:0.75rem;color:rgba(255,255,255,0.4);flex-shrink:0;}

/* ============================================================
   FEATURES
   ============================================================ */
#features .features-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:32px;margin-top:48px;max-width:900px;margin-left:auto;margin-right:auto;}
.feature-card{background:var(--clr-surface);border:1px solid var(--clr-border);border-radius:var(--radius);padding:32px 24px;text-align:center;transition:transform var(--transition),box-shadow var(--transition);}
.feature-card:hover{transform:translateY(-4px);box-shadow:var(--shadow);}
.feature-icon{font-size:2.4rem;margin-bottom:16px;}
.feature-title{font-family:var(--ff-serif-ja);font-size:1.1rem;font-weight:700;margin-bottom:10px;}
.feature-desc{font-size:0.85rem;color:var(--clr-text-sub);line-height:1.8;}
.feature-badge{display:inline-block;margin-top:12px;padding:4px 12px;border:1px solid var(--clr-secondary);border-radius:20px;font-size:0.72rem;color:var(--clr-secondary);}

/* ============================================================
   PRICING
   ============================================================ */
#pricing .pricing-tabs{display:flex;gap:4px;margin:32px 0 24px;background:var(--clr-surface);padding:4px;border-radius:40px;width:fit-content;}
.pricing-tab{padding:10px 28px;border-radius:36px;font-family:var(--ff-ui);font-size:0.875rem;font-weight:500;color:var(--clr-text-sub);transition:var(--transition);}
.pricing-tab.active{background:linear-gradient(135deg,var(--clr-secondary),var(--clr-secondary-light));color:var(--clr-bg);}
.pricing-panel{display:none;}
.pricing-panel.active{display:block;}
.pricing-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.pricing-card{background:var(--clr-surface);border:1px solid var(--clr-border);border-radius:var(--radius);padding:36px 28px;text-align:center;position:relative;transition:transform var(--transition),box-shadow var(--transition);}
.pricing-card:hover{transform:translateY(-4px);}
.pricing-card.featured{border-color:var(--clr-secondary);background:var(--clr-surface2);box-shadow:var(--shadow-gold);}
.pricing-badge{position:absolute;top:-14px;left:50%;transform:translateX(-50%);background:linear-gradient(135deg,var(--clr-secondary),var(--clr-secondary-light));color:var(--clr-bg);padding:4px 20px;border-radius:20px;font-size:0.72rem;font-weight:700;white-space:nowrap;}
.pricing-plan{font-family:var(--ff-serif-en);font-size:1.8rem;font-weight:700;color:var(--clr-secondary);margin-bottom:4px;}
.pricing-size{font-size:0.85rem;color:var(--clr-text-sub);margin-bottom:4px;}
.pricing-count{font-size:0.8rem;color:var(--clr-text-sub);margin-bottom:24px;}
.pricing-price{font-family:var(--ff-ui);font-size:2.4rem;font-weight:700;color:var(--clr-text);margin-bottom:4px;}
.pricing-price span{font-size:1rem;font-weight:400;color:var(--clr-text-sub);}
.pricing-note{font-size:0.8rem;color:var(--clr-text-sub);margin-top:16px;margin-bottom:24px;}
.pricing-footer-note{margin-top:24px;font-size:0.8rem;color:var(--clr-text-sub);text-align:center;}
/* KOTONOHA single card */
.pricing-single{max-width:400px;margin:0 auto;}

/* ============================================================
   HOW TO ORDER
   ============================================================ */
#howto .steps{display:grid;grid-template-columns:repeat(4,1fr);gap:0;margin-top:48px;position:relative;}
.step{text-align:center;padding:0 16px;position:relative;}
.step::after{content:'';position:absolute;top:28px;left:calc(50% + 28px);right:calc(-50% + 28px);height:2px;background:linear-gradient(90deg,var(--clr-secondary),transparent);}
.step:last-child::after{display:none;}
.step-num{width:56px;height:56px;border-radius:50%;background:linear-gradient(135deg,var(--clr-primary),var(--clr-accent));display:flex;align-items:center;justify-content:center;font-family:var(--ff-ui);font-weight:700;font-size:1.1rem;margin:0 auto 16px;position:relative;z-index:1;}
.step-title{font-family:var(--ff-serif-ja);font-size:1rem;font-weight:700;margin-bottom:8px;}
.step-desc{font-size:0.8rem;color:var(--clr-text-sub);line-height:1.7;}
.howto-cta{text-align:center;margin-top:56px;}

/* ============================================================
   FAQ
   ============================================================ */
#faq .faq-list{margin-top:48px;max-width:800px;margin-left:auto;margin-right:auto;}
.faq-item{border-bottom:1px solid var(--clr-border);}
.faq-question{display:flex;align-items:center;justify-content:space-between;padding:20px 0;cursor:pointer;gap:16px;}
.faq-question h3{font-family:var(--ff-serif-ja);font-size:1rem;font-weight:500;}
.faq-icon{width:24px;height:24px;flex-shrink:0;border:1.5px solid var(--clr-secondary);border-radius:50%;display:flex;align-items:center;justify-content:center;color:var(--clr-secondary);font-size:1rem;transition:transform var(--transition);}
.faq-item.open .faq-icon{transform:rotate(45deg);}
.faq-answer{max-height:0;overflow:hidden;transition:max-height 0.4s ease,padding 0.3s;}
.faq-answer p{padding-bottom:20px;font-size:0.9rem;color:var(--clr-text-sub);line-height:1.9;}
.faq-item.open .faq-answer{max-height:300px;}

/* ============================================================
   FOOTER
   ============================================================ */
#footer{background:var(--clr-surface);border-top:1px solid var(--clr-border);padding:56px 0 32px;}
.footer-inner{display:grid;grid-template-columns:1fr auto;gap:48px;align-items:start;}
.footer-logo img{height:32px;margin-bottom:16px;}
.footer-copy{font-size:0.75rem;color:var(--clr-text-sub);}
.footer-nav{display:flex;flex-direction:column;gap:12px;align-items:flex-end;}
.footer-nav a{font-size:0.85rem;color:var(--clr-text-sub);transition:color var(--transition);}
.footer-nav a:hover{color:var(--clr-secondary);}
.footer-sns{display:flex;gap:16px;margin-top:16px;justify-content:flex-end;}
.sns-link{width:40px;height:40px;border:1px solid var(--clr-border);border-radius:50%;display:flex;align-items:center;justify-content:center;color:var(--clr-text-sub);font-size:1.1rem;transition:border-color var(--transition),color var(--transition);}
.sns-link:hover{border-color:var(--clr-secondary);color:var(--clr-secondary);}
.footer-bottom{border-top:1px solid var(--clr-border);margin-top:40px;padding-top:24px;display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:12px;}

/* Floating CTA */
#float-cta{position:fixed;bottom:24px;right:24px;z-index:500;opacity:0;transform:translateY(12px);transition:opacity var(--transition),transform var(--transition);pointer-events:none;}
#float-cta.visible{opacity:1;transform:none;pointer-events:auto;}

/* ============================================================
   HOWTO-UPLOAD PAGE
   ============================================================ */
.howto-hero{padding:140px 0 80px;text-align:center;background:var(--clr-bg-alt);}
.howto-tabs{display:flex;gap:4px;background:var(--clr-surface);padding:4px;border-radius:40px;width:fit-content;margin:40px auto 0;}
.howto-tab{padding:12px 32px;border-radius:36px;font-family:var(--ff-ui);font-weight:500;color:var(--clr-text-sub);transition:var(--transition);}
.howto-tab.active{background:linear-gradient(135deg,var(--clr-primary),var(--clr-accent));color:#fff;}
.howto-panel{display:none;padding:60px 0;}
.howto-panel.active{display:block;}
.howto-steps{display:flex;flex-direction:column;gap:48px;max-width:720px;margin:0 auto;}
.howto-step{display:grid;grid-template-columns:56px 1fr;gap:24px;align-items:start;}
.howto-step-num{width:56px;height:56px;border-radius:50%;background:linear-gradient(135deg,var(--clr-primary),var(--clr-accent));display:flex;align-items:center;justify-content:center;font-family:var(--ff-ui);font-weight:700;font-size:1.2rem;flex-shrink:0;}
.howto-step-body h3{font-family:var(--ff-serif-ja);font-size:1.1rem;font-weight:700;margin-bottom:8px;}
.howto-step-body p{font-size:0.9rem;color:var(--clr-text-sub);line-height:1.8;margin-bottom:12px;}
.howto-step-body .app-links{display:flex;gap:12px;flex-wrap:wrap;}
.app-badge{display:inline-flex;align-items:center;gap:8px;padding:10px 16px;border:1px solid var(--clr-border);border-radius:var(--radius-sm);font-size:0.8rem;color:var(--clr-text-sub);transition:border-color var(--transition);}
.app-badge:hover{border-color:var(--clr-secondary);color:var(--clr-secondary);}
.step-img{width:100%;max-width:400px;border-radius:var(--radius-sm);border:1px solid var(--clr-border);margin-top:12px;}

/* ============================================================
   RESPONSIVE
   ============================================================ */
@media(max-width:900px){
  .section{padding:72px 0;}
  #services .services-grid,
  #features .features-grid,
  #pricing .pricing-grid{grid-template-columns:1fr;}
  #howto .steps{grid-template-columns:1fr 1fr;gap:40px;}
  .step::after{display:none;}
  #about .about-grid{grid-template-columns:1fr;gap:40px;}
  .footer-inner{grid-template-columns:1fr;}
  .footer-nav{align-items:flex-start;}
  .footer-sns{justify-content:flex-start;}
}
@media(max-width:600px){
  .header-nav{display:none;}
  .hamburger{display:flex;}
  .gallery-grid{grid-template-columns:1fr 1fr;}
  #howto .steps{grid-template-columns:1fr;}
  .pricing-grid{grid-template-columns:1fr;}
  .hero-cta{flex-direction:column;align-items:center;}
}