/* =============================================
   Garage Equipment Tools - Main Stylesheet
   Industrial Dark Metallic UI
   ============================================= */

:root {
  --primary-red: #e63c2f;
  --primary-orange: #f07030;
  --accent-yellow: #f5a623;
  --dark-bg: #0d0d0d;
  --dark-surface: #1a1a1a;
  --dark-card: #242424;
  --dark-border: #333333;
  --metal-light: #2e2e2e;
  --metal-mid: #3a3a3a;
  --text-primary: #f0f0f0;
  --text-secondary: #b0b0b0;
  --text-muted: #707070;
  --gradient-red: linear-gradient(135deg, #e63c2f, #f07030);
  --gradient-dark: linear-gradient(135deg, #1a1a1a, #0d0d0d);
  --gradient-metal: linear-gradient(180deg, #2e2e2e 0%, #1a1a1a 100%);
  --shadow-strong: 0 8px 32px rgba(0,0,0,0.6);
  --shadow-card: 0 4px 16px rgba(0,0,0,0.4);
  --shadow-glow-red: 0 0 24px rgba(230,60,47,0.3);
  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 16px;
  --radius-xl: 24px;
  --font-main: 'Noto Sans JP', 'Hiragino Kaku Gothic ProN', Meiryo, sans-serif;
  --transition: all 0.3s ease;
}

* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }

body {
  font-family: var(--font-main);
  background-color: var(--dark-bg);
  color: var(--text-primary);
  line-height: 1.7;
  font-size: 16px;
  overflow-x: hidden;
}

h1, h2, h3, h4, h5 { font-weight: 700; line-height: 1.3; letter-spacing: -0.01em; }
h1 { font-size: clamp(1.8rem, 4vw, 3rem); }
h2 { font-size: clamp(1.4rem, 3vw, 2.2rem); }
h3 { font-size: clamp(1.1rem, 2vw, 1.5rem); }
h4 { font-size: 1.1rem; }

p { color: var(--text-secondary); }
a { color: var(--primary-orange); text-decoration: none; transition: var(--transition); }
a:hover { color: var(--accent-yellow); }

.container { max-width: 1200px; margin: 0 auto; padding: 0 20px; }
.section { padding: 80px 0; }
.section-sm { padding: 48px 0; }

/* HEADER */
.site-header {
  position: sticky; top: 0; z-index: 1000;
  background: rgba(13,13,13,0.97);
  border-bottom: 2px solid var(--primary-red);
  backdrop-filter: blur(12px);
  box-shadow: 0 2px 20px rgba(230,60,47,0.2);
}

.navbar {
  display: flex; align-items: center; justify-content: space-between;
  padding: 16px 20px; max-width: 1200px; margin: 0 auto;
}

.logo { display: flex; align-items: center; gap: 12px; text-decoration: none; }

.logo-icon {
  width: 44px; height: 44px;
  background: var(--gradient-red);
  border-radius: var(--radius-sm);
  display: flex; align-items: center; justify-content: center;
  font-size: 1.4rem;
  box-shadow: var(--shadow-glow-red);
  flex-shrink: 0;
}

.logo-text { display: flex; flex-direction: column; }
.logo-name { font-size: 1.05rem; font-weight: 800; color: var(--text-primary); letter-spacing: 0.02em; line-height: 1.2; }
.logo-sub { font-size: 0.65rem; color: var(--primary-orange); letter-spacing: 0.08em; text-transform: uppercase; }

.nav-menu { display: flex; list-style: none; gap: 4px; align-items: center; }
.nav-menu a { display: block; padding: 8px 14px; color: var(--text-secondary); font-size: 0.85rem; font-weight: 500; border-radius: var(--radius-sm); transition: var(--transition); }
.nav-menu a:hover, .nav-menu a.active { color: var(--text-primary); background: var(--metal-light); }
.nav-cta { background: var(--gradient-red) !important; color: white !important; font-weight: 700 !important; padding: 9px 18px !important; box-shadow: var(--shadow-glow-red); }
.nav-cta:hover { opacity: 0.9 !important; transform: translateY(-1px); background: var(--gradient-red) !important; }

.hamburger { display: none; flex-direction: column; gap: 5px; cursor: pointer; padding: 8px; background: none; border: none; }
.hamburger span { display: block; width: 24px; height: 2px; background: var(--text-primary); transition: var(--transition); }

/* HERO */
.hero { position: relative; min-height: 88vh; display: flex; align-items: center; background: var(--dark-bg); overflow: hidden; }
.hero::before {
  content: ''; position: absolute; inset: 0;
  background:
    radial-gradient(ellipse 70% 60% at 80% 50%, rgba(230,60,47,0.12) 0%, transparent 70%),
    radial-gradient(ellipse 50% 40% at 20% 80%, rgba(240,112,48,0.08) 0%, transparent 60%),
    repeating-linear-gradient(0deg, transparent, transparent 48px, rgba(255,255,255,0.02) 48px, rgba(255,255,255,0.02) 50px),
    repeating-linear-gradient(90deg, transparent, transparent 48px, rgba(255,255,255,0.02) 48px, rgba(255,255,255,0.02) 50px);
}
.hero-content { position: relative; z-index: 2; max-width: 680px; }
.hero-badge {
  display: inline-flex; align-items: center; gap: 8px;
  background: rgba(230,60,47,0.15); border: 1px solid rgba(230,60,47,0.4);
  color: var(--primary-orange); font-size: 0.75rem; font-weight: 700;
  letter-spacing: 0.1em; text-transform: uppercase;
  padding: 6px 14px; border-radius: 100px; margin-bottom: 24px;
}
.hero-title { font-size: clamp(2rem, 5vw, 3.4rem); font-weight: 900; color: var(--text-primary); margin-bottom: 20px; line-height: 1.2; }
.hero-title .highlight { background: var(--gradient-red); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; }
.hero-subtitle { font-size: 1.05rem; color: var(--text-secondary); margin-bottom: 36px; max-width: 560px; }
.hero-actions { display: flex; gap: 16px; flex-wrap: wrap; margin-bottom: 48px; }
.hero-stats { display: flex; gap: 32px; padding-top: 32px; border-top: 1px solid var(--dark-border); }
.hero-stat .number { font-size: 1.8rem; font-weight: 800; color: var(--primary-orange); line-height: 1; }
.hero-stat .label { font-size: 0.75rem; color: var(--text-muted); margin-top: 4px; }

/* BUTTONS */
.btn { display: inline-flex; align-items: center; gap: 8px; padding: 13px 28px; font-size: 0.95rem; font-weight: 700; border-radius: var(--radius-sm); border: 2px solid transparent; cursor: pointer; transition: var(--transition); text-decoration: none; font-family: var(--font-main); }
.btn-primary { background: var(--gradient-red); color: white; border-color: transparent; box-shadow: var(--shadow-glow-red); }
.btn-primary:hover { opacity: 0.92; transform: translateY(-2px); box-shadow: 0 6px 24px rgba(230,60,47,0.45); color: white; }
.btn-outline { background: transparent; color: var(--text-primary); border-color: var(--dark-border); }
.btn-outline:hover { border-color: var(--primary-orange); color: var(--primary-orange); background: rgba(240,112,48,0.08); }
.btn-sm { padding: 8px 18px; font-size: 0.85rem; }

/* SECTION HEADERS */
.section-header { text-align: center; margin-bottom: 56px; }
.section-tag { display: inline-block; background: rgba(230,60,47,0.15); border: 1px solid rgba(230,60,47,0.3); color: var(--primary-orange); font-size: 0.72rem; font-weight: 700; letter-spacing: 0.12em; text-transform: uppercase; padding: 5px 14px; border-radius: 100px; margin-bottom: 16px; }
.section-title { color: var(--text-primary); margin-bottom: 16px; }
.section-desc { color: var(--text-secondary); max-width: 560px; margin: 0 auto; font-size: 1rem; }

/* CARDS */
.card { background: var(--dark-card); border: 1px solid var(--dark-border); border-radius: var(--radius-lg); overflow: hidden; transition: var(--transition); }
.card:hover { border-color: var(--primary-red); box-shadow: var(--shadow-card), 0 0 20px rgba(230,60,47,0.15); transform: translateY(-4px); }
.card-img { width: 100%; height: 220px; object-fit: cover; display: block; background: var(--metal-light); transition: var(--transition); }
.card:hover .card-img { opacity: 0.9; }
.card-body { padding: 24px; }
.card-tag { font-size: 0.7rem; font-weight: 700; letter-spacing: 0.1em; text-transform: uppercase; color: var(--primary-orange); margin-bottom: 8px; }
.card-title { font-size: 1.05rem; font-weight: 700; color: var(--text-primary); margin-bottom: 10px; }
.card-desc { font-size: 0.88rem; color: var(--text-secondary); line-height: 1.6; margin-bottom: 20px; }

/* GRIDS */
.grid-2 { display: grid; grid-template-columns: repeat(2, 1fr); gap: 24px; }
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.grid-4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }

/* FEATURE */
.feature-item { background: var(--dark-card); border: 1px solid var(--dark-border); border-radius: var(--radius-md); padding: 28px; transition: var(--transition); position: relative; overflow: hidden; }
.feature-item::before { content: ''; position: absolute; top: 0; left: 0; right: 0; height: 3px; background: var(--gradient-red); transform: scaleX(0); transform-origin: left; transition: var(--transition); }
.feature-item:hover::before { transform: scaleX(1); }
.feature-item:hover { border-color: rgba(230,60,47,0.3); box-shadow: var(--shadow-card); }
.feature-icon { width: 52px; height: 52px; background: rgba(230,60,47,0.15); border: 1px solid rgba(230,60,47,0.3); border-radius: var(--radius-md); display: flex; align-items: center; justify-content: center; font-size: 1.5rem; margin-bottom: 16px; }
.feature-title { font-size: 1rem; font-weight: 700; color: var(--text-primary); margin-bottom: 8px; }
.feature-desc { font-size: 0.88rem; color: var(--text-secondary); line-height: 1.6; }

/* STATS BAND */
.stats-band { background: var(--dark-surface); border-top: 1px solid var(--dark-border); border-bottom: 1px solid var(--dark-border); padding: 48px 0; }
.stats-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; text-align: center; }
.stat-item .stat-num { font-size: 2.2rem; font-weight: 900; background: var(--gradient-red); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; line-height: 1; }
.stat-item .stat-label { font-size: 0.82rem; color: var(--text-muted); margin-top: 8px; line-height: 1.4; }

/* TESTIMONIALS */
.testimonial-card { background: var(--dark-card); border: 1px solid var(--dark-border); border-radius: var(--radius-lg); padding: 28px; transition: var(--transition); }
.testimonial-card:hover { border-color: rgba(230,60,47,0.3); }
.testimonial-stars { color: var(--accent-yellow); font-size: 1rem; margin-bottom: 12px; letter-spacing: 2px; }
.testimonial-text { font-size: 0.92rem; color: var(--text-secondary); line-height: 1.7; margin-bottom: 20px; font-style: italic; }
.testimonial-author { display: flex; align-items: center; gap: 12px; }
.author-avatar { width: 44px; height: 44px; background: var(--gradient-red); border-radius: 50%; display: flex; align-items: center; justify-content: center; font-weight: 800; font-size: 1rem; color: white; flex-shrink: 0; }
.author-name { font-weight: 700; font-size: 0.9rem; color: var(--text-primary); }
.author-role { font-size: 0.78rem; color: var(--text-muted); }

/* FAQ */
.faq-item { background: var(--dark-card); border: 1px solid var(--dark-border); border-radius: var(--radius-md); overflow: hidden; margin-bottom: 12px; }
.faq-question { width: 100%; background: none; border: none; padding: 20px 24px; display: flex; align-items: center; justify-content: space-between; cursor: pointer; font-family: var(--font-main); font-size: 0.95rem; font-weight: 600; color: var(--text-primary); text-align: left; gap: 16px; transition: var(--transition); }
.faq-question:hover { background: rgba(230,60,47,0.05); }
.faq-icon { flex-shrink: 0; width: 24px; height: 24px; background: rgba(230,60,47,0.15); border-radius: 50%; display: flex; align-items: center; justify-content: center; font-size: 0.85rem; color: var(--primary-red); font-weight: 800; transition: var(--transition); }
.faq-answer { max-height: 0; overflow: hidden; transition: max-height 0.4s ease; }
.faq-answer.open { max-height: 400px; }
.faq-answer-inner { padding: 0 24px 20px; font-size: 0.9rem; color: var(--text-secondary); line-height: 1.7; }

/* CTA BANNER */
.cta-banner { background: var(--dark-surface); border: 1px solid var(--dark-border); border-radius: var(--radius-xl); padding: 56px 48px; text-align: center; position: relative; overflow: hidden; }
.cta-banner::before { content: ''; position: absolute; inset: 0; background: radial-gradient(ellipse 60% 80% at 50% 50%, rgba(230,60,47,0.1) 0%, transparent 70%); }
.cta-banner .section-title, .cta-banner .section-desc { position: relative; }
.cta-actions { display: flex; justify-content: center; gap: 16px; flex-wrap: wrap; position: relative; margin-top: 28px; }

/* BREADCRUMB */
.breadcrumb { background: var(--dark-surface); border-bottom: 1px solid var(--dark-border); padding: 12px 0; }
.breadcrumb-list { display: flex; list-style: none; align-items: center; font-size: 0.82rem; }
.breadcrumb-list li + li::before { content: '›'; margin: 0 8px; color: var(--text-muted); }
.breadcrumb-list a { color: var(--text-muted); }
.breadcrumb-list a:hover { color: var(--primary-orange); }
.breadcrumb-list .current { color: var(--primary-orange); }

/* PAGE HERO */
.page-hero { padding: 60px 0 48px; background: var(--dark-surface); border-bottom: 1px solid var(--dark-border); position: relative; overflow: hidden; }
.page-hero::before { content: ''; position: absolute; inset: 0; background: radial-gradient(ellipse 50% 100% at 0% 50%, rgba(230,60,47,0.08) 0%, transparent 60%); }
.page-hero-content { position: relative; }

/* PRODUCT */
.product-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 48px; align-items: start; }
.product-img-wrap { background: var(--dark-card); border: 1px solid var(--dark-border); border-radius: var(--radius-lg); overflow: hidden; }
.product-img { width: 100%; height: 380px; object-fit: cover; display: block; }
.product-spec-list { list-style: none; margin-top: 20px; }
.product-spec-list li { display: flex; align-items: flex-start; gap: 10px; padding: 10px 0; border-bottom: 1px solid var(--dark-border); font-size: 0.9rem; color: var(--text-secondary); }
.product-spec-list li:last-child { border-bottom: none; }
.spec-icon { color: var(--primary-orange); flex-shrink: 0; margin-top: 2px; }

/* INFO BLOCK */
.info-block { background: var(--dark-card); border: 1px solid var(--dark-border); border-left: 4px solid var(--primary-red); border-radius: var(--radius-md); padding: 24px; margin-bottom: 20px; }
.info-block-title { font-weight: 700; color: var(--text-primary); margin-bottom: 8px; font-size: 0.95rem; }
.info-block p { font-size: 0.88rem; }

/* TABLE */
.data-table { width: 100%; border-collapse: collapse; font-size: 0.88rem; }
.data-table th { background: var(--metal-light); color: var(--text-primary); font-weight: 700; padding: 14px 20px; text-align: left; border-bottom: 2px solid var(--primary-red); }
.data-table td { padding: 12px 20px; border-bottom: 1px solid var(--dark-border); color: var(--text-secondary); }
.data-table tr:hover td { background: rgba(255,255,255,0.03); }

/* CONTACT */
.contact-form { background: var(--dark-card); border: 1px solid var(--dark-border); border-radius: var(--radius-lg); padding: 40px; }
.form-group { margin-bottom: 20px; }
.form-label { display: block; font-size: 0.85rem; font-weight: 600; color: var(--text-secondary); margin-bottom: 8px; }
.form-control { width: 100%; background: var(--dark-surface); border: 1px solid var(--dark-border); border-radius: var(--radius-sm); padding: 12px 16px; color: var(--text-primary); font-family: var(--font-main); font-size: 0.9rem; transition: var(--transition); outline: none; }
.form-control:focus { border-color: var(--primary-orange); box-shadow: 0 0 0 3px rgba(240,112,48,0.15); }
.form-control::placeholder { color: var(--text-muted); }
textarea.form-control { resize: vertical; min-height: 140px; }
select.form-control { appearance: none; cursor: pointer; }

.contact-info-item { display: flex; align-items: flex-start; gap: 16px; padding: 20px 0; border-bottom: 1px solid var(--dark-border); }
.contact-info-item:last-child { border-bottom: none; }
.contact-icon { width: 44px; height: 44px; background: rgba(230,60,47,0.15); border: 1px solid rgba(230,60,47,0.3); border-radius: var(--radius-sm); display: flex; align-items: center; justify-content: center; font-size: 1.2rem; flex-shrink: 0; }
.contact-label { font-size: 0.75rem; font-weight: 700; letter-spacing: 0.08em; text-transform: uppercase; color: var(--text-muted); margin-bottom: 4px; }
.contact-value { font-size: 0.95rem; color: var(--text-primary); font-weight: 500; }

/* BADGES */
.badge { display: inline-flex; align-items: center; padding: 4px 10px; border-radius: 100px; font-size: 0.72rem; font-weight: 700; letter-spacing: 0.05em; }
.badge-red { background: rgba(230,60,47,0.15); color: var(--primary-red); border: 1px solid rgba(230,60,47,0.3); }
.badge-orange { background: rgba(240,112,48,0.15); color: var(--primary-orange); border: 1px solid rgba(240,112,48,0.3); }
.badge-green { background: rgba(40,160,100,0.15); color: #0f4528; border: 1px solid rgba(40,160,100,0.3); }

/* FOOTER */
.site-footer { background: var(--dark-surface); border-top: 2px solid var(--primary-red); padding: 60px 0 0; }
.footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: 40px; margin-bottom: 48px; }
.footer-brand p { font-size: 0.88rem; color: var(--text-muted); margin-top: 16px; line-height: 1.7; max-width: 280px; }
.footer-heading { font-size: 0.8rem; font-weight: 800; letter-spacing: 0.1em; text-transform: uppercase; color: var(--text-primary); margin-bottom: 20px; }
.footer-links { list-style: none; display: flex; flex-direction: column; gap: 10px; }
.footer-links a { font-size: 0.88rem; color: var(--text-muted); transition: var(--transition); }
.footer-links a:hover { color: var(--primary-orange); padding-left: 4px; }
.footer-contact-info { font-size: 0.85rem; color: var(--text-muted); line-height: 1.8; }
.footer-contact-info a { color: var(--text-muted); }
.footer-contact-info a:hover { color: var(--primary-orange); }
.footer-bottom { border-top: 1px solid var(--dark-border); padding: 20px 0; display: flex; align-items: center; justify-content: space-between; flex-wrap: wrap; gap: 12px; }
.footer-copyright { font-size: 0.8rem; color: var(--text-muted); }
.footer-legal { display: flex; gap: 20px; }
.footer-legal a { font-size: 0.8rem; color: var(--text-muted); }
.footer-legal a:hover { color: var(--primary-orange); }
.disclaimer-bar { background: rgba(230,60,47,0.08); border-top: 1px solid rgba(230,60,47,0.2); padding: 14px 0; text-align: center; font-size: 0.78rem; color: var(--text-muted); }

/* APP LIST */
.app-list { display: grid; grid-template-columns: repeat(2, 1fr); gap: 16px; }
.app-item { background: var(--dark-card); border: 1px solid var(--dark-border); border-radius: var(--radius-md); padding: 20px; display: flex; align-items: flex-start; gap: 14px; transition: var(--transition); }
.app-item:hover { border-color: rgba(230,60,47,0.3); }
.app-icon { font-size: 1.6rem; flex-shrink: 0; }
.app-title { font-weight: 700; font-size: 0.95rem; color: var(--text-primary); margin-bottom: 4px; }
.app-desc { font-size: 0.83rem; color: var(--text-secondary); }

.highlight-box { background: rgba(230,60,47,0.06); border: 1px solid rgba(230,60,47,0.2); border-radius: var(--radius-md); padding: 24px; }

.scroll-top { position: fixed; bottom: 28px; right: 28px; width: 44px; height: 44px; background: var(--gradient-red); border-radius: var(--radius-sm); display: flex; align-items: center; justify-content: center; cursor: pointer; font-size: 1.1rem; box-shadow: var(--shadow-strong); z-index: 999; opacity: 0; transform: translateY(8px); transition: var(--transition); border: none; color: white; text-decoration: none; }
.scroll-top.visible { opacity: 1; transform: translateY(0); }

/* DIVIDERS */
.divider { height: 1px; background: var(--dark-border); margin: 40px 0; }
.divider-red { height: 2px; background: var(--gradient-red); margin: 40px 0; border-radius: 2px; }

/* ICON STRIP */
.icon-strip { display: flex; align-items: center; gap: 32px; flex-wrap: wrap; }
.icon-strip-item { display: flex; align-items: center; gap: 10px; font-size: 0.88rem; color: var(--text-secondary); }
.icon-strip-item .dot { width: 8px; height: 8px; border-radius: 50%; background: var(--primary-red); flex-shrink: 0; }

/* UTILITIES */
.text-center { text-align: center; }
.mt-8 { margin-top: 8px; }
.mt-16 { margin-top: 16px; }
.mt-24 { margin-top: 24px; }
.mt-32 { margin-top: 32px; }
.mb-16 { margin-bottom: 16px; }
.mb-24 { margin-bottom: 24px; }
.mb-32 { margin-bottom: 32px; }
.mb-48 { margin-bottom: 48px; }
.flex { display: flex; }
.flex-center { display: flex; align-items: center; justify-content: center; }
.gap-16 { gap: 16px; }
.gap-24 { gap: 24px; }
.fw-700 { font-weight: 700; }
.color-orange { color: var(--primary-orange); }
.color-red { color: var(--primary-red); }
.color-muted { color: var(--text-muted); }

/* RESPONSIVE */
@media (max-width: 1024px) {
  .grid-4 { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .stats-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 768px) {
  .section { padding: 56px 0; }
  .grid-2, .grid-3, .product-grid { grid-template-columns: 1fr; }
  .app-list { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; gap: 28px; }
  .footer-bottom { flex-direction: column; text-align: center; }
  .hero-stats { flex-wrap: wrap; gap: 20px; }
  .cta-banner { padding: 36px 24px; }
  .hamburger { display: flex; }
  .nav-menu { position: fixed; top: 76px; left: 0; right: 0; background: rgba(13,13,13,0.98); border-bottom: 1px solid var(--dark-border); flex-direction: column; padding: 16px; gap: 4px; transform: translateY(-110%); transition: transform 0.3s ease; z-index: 999; backdrop-filter: blur(12px); }
  .nav-menu.open { transform: translateY(0); }
  .nav-menu a { padding: 12px 16px; font-size: 0.95rem; }
  .product-grid { gap: 28px; }
  .contact-form { padding: 24px; }
}

@media (max-width: 480px) {
  .hero-actions { flex-direction: column; }
  .btn { width: 100%; justify-content: center; }
  .stats-grid { grid-template-columns: 1fr 1fr; }
  .grid-4 { grid-template-columns: 1fr; }
  .hero { min-height: auto; padding: 60px 0; }
}