/*
Theme Name: ProTape Theme
Theme URI: https://protapetape.com
Author: ProTape
Author URI: https://protapetape.com
Description: Custom WordPress theme for ProTape New Materials Technology Co., Ltd. - an industrial tape solutions provider.
Version: 1.0.0
Requires at least: 5.0
Tested up to: 6.7
Requires PHP: 7.4
License: Proprietary
Text Domain: protapetheme

=== Design Tokens ===
Primary:   #003d6b (Deep Blue)
Accent:    #e31837 (Brand Red)
Light BG:  #f8f9fa
Text:      #1a1a1a
Text Muted:#666666
Border:    #e0e0e0
*/

/* === CSS Custom Properties === */
:root {
  --color-primary: #003d6b;
  --color-primary-light: #005b96;
  --color-accent: #e31837;
  --color-accent-hover: #c41230;
  --color-bg: #ffffff;
  --color-bg-light: #f8f9fa;
  --color-bg-dark: #0a1628;
  --color-text: #1a1a1a;
  --color-text-muted: #666666;
  --color-text-light: #999999;
  --color-border: #e0e0e0;
  --font-heading: 'Montserrat', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-body: 'Open Sans', -apple-system, BlinkMacSystemFont, sans-serif;
  --max-width: 1200px;
  --nav-height: 64px;
  --radius: 6px;
  --shadow: 0 2px 12px rgba(0,0,0,0.08);
  --shadow-hover: 0 4px 20px rgba(0,0,0,0.14);
  --transition: 0.2s ease;
}

/* === Reset & Base === */
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{font-family:var(--font-body);font-size:16px;line-height:1.6;color:var(--color-text);background:var(--color-bg);-webkit-font-smoothing:antialiased}
img{max-width:100%;height:auto;display:block}
a{color:var(--color-primary);text-decoration:none;transition:color var(--transition)}
a:hover{color:var(--color-primary-light)}
ul{list-style:none}
h1,h2,h3,h4,h5,h6{font-family:var(--font-heading);font-weight:700;line-height:1.3;color:var(--color-text)}
h1{font-size:clamp(2rem,4vw,2.8rem)}
h2{font-size:clamp(1.6rem,3vw,2.2rem)}
h3{font-size:clamp(1.2rem,2vw,1.5rem)}
.container{width:100%;max-width:var(--max-width);margin:0 auto;padding:0 20px}
.section{padding:80px 0}
.section-title{text-align:center;margin-bottom:12px}
.section-subtitle{text-align:center;color:var(--color-text-muted);font-size:1.05rem;margin-bottom:48px;max-width:600px;margin-left:auto;margin-right:auto}
.btn{display:inline-block;padding:12px 28px;border-radius:var(--radius);font-family:var(--font-heading);font-weight:600;font-size:0.95rem;cursor:pointer;transition:all var(--transition);border:none;text-align:center}
.btn-primary{background:var(--color-accent);color:#fff}
.btn-primary:hover{background:var(--color-accent-hover);color:#fff}
.btn-outline{background:transparent;color:#fff;border:2px solid #fff}
.btn-outline:hover{background:#fff;color:var(--color-primary)}
.btn-secondary{background:transparent;color:var(--color-primary);border:2px solid var(--color-primary)}
.btn-secondary:hover{background:var(--color-primary);color:#fff}

/* === Header === */
.site-header{position:fixed;top:0;left:0;right:0;z-index:1000;background:rgba(255,255,255,0.97);backdrop-filter:blur(10px);border-bottom:1px solid transparent;transition:all var(--transition);height:var(--nav-height)}
.header-scrolled{border-bottom-color:var(--color-border);box-shadow:0 1px 8px rgba(0,0,0,0.06)}
.header-inner{display:flex;align-items:center;justify-content:space-between;height:100%}
.logo{display:flex;align-items:center;text-decoration:none;flex-shrink:0}
.logo-text{font-family:var(--font-heading);font-size:1.4rem;font-weight:800;color:var(--color-primary);letter-spacing:-0.5px}
.logo-accent{color:var(--color-accent)}
.main-nav{display:flex;align-items:center}
.nav-list{display:flex;gap:4px}
.nav-link{display:block;padding:8px 16px;font-family:var(--font-heading);font-size:0.9rem;font-weight:600;color:var(--color-text);border-radius:var(--radius);transition:all var(--transition)}
.nav-link:hover{color:var(--color-primary);background:var(--color-bg-light)}
.dropdown-arrow{font-size:0.7rem;margin-left:2px}
.has-dropdown{position:relative}
.dropdown{position:absolute;top:100%;left:0;min-width:260px;background:#fff;border-radius:var(--radius);box-shadow:var(--shadow-hover);padding:8px 0;opacity:0;visibility:hidden;transform:translateY(8px);transition:all var(--transition)}
.has-dropdown:hover .dropdown,.dropdown-open .dropdown{opacity:1;visibility:visible;transform:translateY(0)}
.dropdown li a{display:flex;align-items:center;gap:8px;padding:10px 20px;font-size:0.9rem;color:var(--color-text);transition:background var(--transition)}
.dropdown li a:hover{background:var(--color-bg-light);color:var(--color-primary)}
.dropdown-code{display:inline-block;width:36px;padding:2px 4px;background:var(--color-primary);color:#fff;font-size:0.7rem;font-weight:700;text-align:center;border-radius:3px;font-family:var(--font-body)}
.header-cta{padding:8px 20px;font-size:0.85rem;flex-shrink:0}
.mobile-toggle{display:none;flex-direction:column;gap:5px;background:none;border:none;cursor:pointer;padding:4px}
.hamburger-line{display:block;width:24px;height:2px;background:var(--color-text);border-radius:2px;transition:all var(--transition)}
.mobile-toggle[aria-expanded="true"] .hamburger-line:nth-child(1){transform:rotate(45deg) translate(5px,5px)}
.mobile-toggle[aria-expanded="true"] .hamburger-line:nth-child(2){opacity:0}
.mobile-toggle[aria-expanded="true"] .hamburger-line:nth-child(3){transform:rotate(-45deg) translate(5px,-5px)}
.no-scroll{overflow:hidden}
#main-content{padding-top:var(--nav-height)}

/* === Footer === */
.site-footer{background:var(--color-bg-dark);color:#ccc;padding:60px 0 0}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:40px;padding-bottom:40px}
.footer-brand{max-width:280px}
.footer-logo{font-family:var(--font-heading);font-size:1.3rem;font-weight:800;color:#fff}
.footer-desc{margin-top:12px;font-size:0.9rem;line-height:1.6;color:#aaa}
.footer-heading{color:#fff;font-size:0.95rem;margin-bottom:16px;font-weight:700}
.footer-links li{margin-bottom:8px}
.footer-links a{color:#aaa;font-size:0.88rem;transition:color var(--transition)}
.footer-links a:hover{color:#fff}
.footer-bottom{border-top:1px solid rgba(255,255,255,0.1);padding:20px 0;text-align:center;font-size:0.85rem;color:#888}

/* === Hero === */
.hero{position:relative;display:flex;align-items:center;justify-content:center;text-align:center;color:#fff;overflow:hidden}
.hero--large{min-height:85vh;padding:120px 20px}
.hero--small{min-height:40vh;padding:80px 20px 60px}
.hero-overlay{position:absolute;inset:0;background:linear-gradient(135deg,rgba(0,45,80,0.6) 0%,rgba(0,61,107,0.4) 100%)}
.hero-content{position:relative;z-index:2;max-width:800px}
.hero-title{color:#fff;margin-bottom:16px;font-weight:800;letter-spacing:-0.5px}
.hero-subtitle{font-size:clamp(1rem,2vw,1.2rem);opacity:0.9;margin-bottom:32px;line-height:1.6}
.hero-ctas{display:flex;gap:16px;justify-content:center;flex-wrap:wrap}

/* === Trust Bar === */
.trust-bar{background:#fff;border-bottom:1px solid var(--color-border)}
.trust-grid{display:grid;grid-template-columns:repeat(4,1fr);text-align:center;padding:32px 0}
.trust-item{padding:16px}
.trust-number{display:block;font-family:var(--font-heading);font-size:2rem;font-weight:800;color:var(--color-primary);line-height:1.2}
.trust-label{font-size:0.9rem;color:var(--color-text-muted);margin-top:4px}

/* === Section headings === */
.section-header{margin-bottom:48px}

/* === Cards Grid === */
.cards-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(320px,1fr));gap:24px}
.cards-grid-4{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.cards-grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}

/* === Product Card === */
.product-card{background:#fff;border:1px solid var(--color-border);border-radius:var(--radius);overflow:hidden;transition:all var(--transition);display:block;color:var(--color-text)}
.product-card:hover{box-shadow:var(--shadow-hover);transform:translateY(-2px);color:var(--color-text)}
.product-card-image{aspect-ratio:16/10;overflow:hidden}
.product-placeholder{width:100%;height:100%;display:flex;align-items:center;justify-content:center}
.product-code{font-family:var(--font-heading);font-size:1.8rem;font-weight:800;color:rgba(255,255,255,0.9);letter-spacing:1px}
.product-card-body{padding:20px}
.product-card-name{font-size:1.1rem;margin-bottom:8px}
.product-card-desc{font-size:0.9rem;color:var(--color-text-muted);margin-bottom:12px;line-height:1.5}
.product-card-tags{display:flex;gap:6px;flex-wrap:wrap}
.product-tag{display:inline-block;padding:3px 10px;background:var(--color-bg-light);border-radius:20px;font-size:0.78rem;color:var(--color-text-muted)}

/* === Industry Card === */
.industry-card{background:#fff;border:1px solid var(--color-border);border-radius:var(--radius);padding:32px 24px;text-align:center;transition:all var(--transition);display:block;color:var(--color-text)}
.industry-card:hover{box-shadow:var(--shadow-hover);transform:translateY(-2px);color:var(--color-text)}
.industry-icon{font-size:2.4rem;margin-bottom:12px}
.industry-name{font-size:1.05rem;margin-bottom:8px}
.industry-desc{font-size:0.88rem;color:var(--color-text-muted);line-height:1.5}

/* === Spec Table === */
.spec-table{width:100%;border-collapse:collapse;font-size:0.9rem}
.spec-table tr{border-bottom:1px solid var(--color-border)}
.spec-table tr:last-child{border-bottom:none}
.spec-key{padding:10px 12px;color:var(--color-text-muted);width:40%;font-weight:600;vertical-align:top}
.spec-val{padding:10px 12px;color:var(--color-text)}

/* === Solution Block === */
.solution-block{transition:all var(--transition)}
.solution-block:target{border-color:var(--color-primary)!important;box-shadow:0 0 0 3px rgba(0,61,107,0.1)}

/* === FAQ Accordion === */
.faq-question:hover{background:var(--color-bg-light)}
.faq-question[aria-expanded="true"] .faq-arrow{transform:rotate(180deg)}
.faq-item:has(.faq-question[aria-expanded="true"]){border-color:var(--color-primary)}

/* === Forms === */
.form-group{margin-bottom:20px}
.form-label{display:block;margin-bottom:6px;font-weight:600;font-size:0.9rem;color:var(--color-text)}
.form-input{width:100%;padding:12px 16px;border:1px solid var(--color-border);border-radius:var(--radius);font-family:var(--font-body);font-size:0.95rem;transition:border-color var(--transition);background:#fff;color:var(--color-text)}
.form-input:focus{outline:none;border-color:var(--color-primary);box-shadow:0 0 0 3px rgba(0,61,107,0.1)}
.form-input::placeholder{color:var(--color-text-light)}
.form-textarea{min-height:140px;resize:vertical}
select.form-input{appearance:none;background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8'%3E%3Cpath d='M1 1l5 5 5-5' stroke='%23666' fill='none' stroke-width='1.5'/%3E%3C/svg%3E");background-repeat:no-repeat;background-position:right 16px center;padding-right:40px}

/* === Product Detail === */
.product-detail:target{scroll-margin-top:calc(var(--nav-height) + 20px)}
.product-detail:first-of-type{border-top:none!important}

/* === Timeline === */
@media(max-width:768px){.timeline-item{flex-direction:column;gap:8px}.timeline-item>div:first-child{text-align:left!important}.timeline-item>div:nth-child(2){display:none}}

/* === Animations === */
@keyframes fadeInUp{from{opacity:0;transform:translateY(20px)}to{opacity:1;transform:translateY(0)}}
.animate{animation:fadeInUp 0.5s ease forwards}

/* === Print === */
@media print{.site-header,.site-footer,.hero,.btn,.mobile-toggle{display:none}#main-content{padding-top:0}body{font-size:12px}}

/* === Responsive: Header & Footer === */
@media(max-width:1024px){
.header-cta{display:none}
.main-nav{position:fixed;top:var(--nav-height);left:0;right:0;bottom:0;background:#fff;flex-direction:column;padding:20px;transform:translateX(100%);transition:transform 0.3s ease;overflow-y:auto}
.nav-open .main-nav{transform:translateX(0)}
.nav-open{overflow:hidden}
.nav-list{flex-direction:column;gap:4px}
.nav-link{padding:12px 16px;font-size:1rem}
.dropdown{position:static;box-shadow:none;opacity:1;visibility:visible;transform:none;padding:0 0 0 16px;display:none}
.dropdown-open .dropdown{display:block}
.mobile-toggle{display:flex}
.footer-grid{grid-template-columns:1fr 1fr}
}

/* === Responsive: Cards & Grids === */
@media(max-width:768px){
.trust-grid{grid-template-columns:repeat(2,1fr)}
.cards-grid-4{grid-template-columns:repeat(2,1fr)}
.cards-grid-3{grid-template-columns:1fr}
.hero--large{min-height:70vh;padding:80px 20px}
.hero-ctas{flex-direction:column;align-items:center}
.footer-grid{grid-template-columns:1fr;gap:30px}
.footer-brand{max-width:100%}
}

@media(max-width:480px){
.cards-grid-4{grid-template-columns:1fr}
.cards-grid{grid-template-columns:1fr}
.trust-grid{grid-template-columns:1fr}
}