/*
Theme Name: Duyen Portfolio
Theme URI: https://duyendesign.com
Author: Duyen Design
Description: Korean soft-minimalism portfolio theme with mixed-media carousel, category carousels, and lightbox.
Version: 1.0.0
Requires at least: 6.2
Requires PHP: 8.0
Text Domain: duyen-portfolio
*/

/* ═══ VARIABLES ═══ */
:root {
    --bg-primary:#FBFCFE; --bg-secondary:#F0F4FA; --bg-tertiary:#E8EFF8;
    --accent:#7BA7D9; --accent-soft:#A8C5E8; --accent-deep:#5B8BBF;
    --text-primary:#2B3445; --text-secondary:#6B7B91; --text-light:#9AABC0;
    --white:#FFFFFF; --border:#E2E8F0;
    --shadow-soft:0 2px 20px rgba(123,167,217,.08);
    --shadow-hover:0 8px 40px rgba(91,139,191,.15);
    --radius:16px; --radius-sm:10px;
    --transition:.4s cubic-bezier(.25,.46,.45,.94);
    --max-width:1200px; --nav-height:72px;
}

*,*::before,*::after{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-font-smoothing:antialiased}
body{font-family:'Pretendard Variable',Pretendard,-apple-system,BlinkMacSystemFont,system-ui,sans-serif;background:var(--bg-primary);color:var(--text-primary);line-height:1.6;overflow-x:hidden}
a{text-decoration:none;color:inherit}
img{max-width:100%;display:block}
ul{list-style:none}
.container{max-width:var(--max-width);margin:0 auto;padding:0 32px}

/* ═══ NAV ═══ */
.nav{position:fixed;top:0;left:0;right:0;height:var(--nav-height);background:rgba(251,252,254,.85);backdrop-filter:blur(20px);-webkit-backdrop-filter:blur(20px);border-bottom:1px solid rgba(226,232,240,.5);z-index:1000;transition:var(--transition)}
.nav .container{height:100%;display:flex;align-items:center;justify-content:space-between}
.nav-logo{font-size:1.25rem;font-weight:700;letter-spacing:-.02em}
.nav-logo span{color:var(--accent)}
.nav-links{display:flex;gap:36px;align-items:center}
.nav-links a{font-size:.9rem;font-weight:500;color:var(--text-secondary);transition:color var(--transition);position:relative}
.nav-links a:hover{color:var(--text-primary)}
.nav-links a::after{content:'';position:absolute;bottom:-4px;left:0;width:0;height:2px;background:var(--accent);border-radius:2px;transition:width var(--transition)}
.nav-links a:hover::after{width:100%}
.nav-cta{padding:10px 24px;background:var(--accent);color:var(--white)!important;border-radius:100px;font-size:.875rem;font-weight:600;transition:var(--transition)}
.nav-cta:hover{background:var(--accent-deep);transform:translateY(-1px)}
.nav-cta::after{display:none}
.nav-toggle{display:none;background:none;border:none;cursor:pointer;font-size:1.5rem;color:var(--text-primary)}

/* ═══ HERO ═══ */
.hero{min-height:100vh;display:flex;align-items:center;padding:calc(var(--nav-height) + 40px) 0 80px;background:linear-gradient(180deg,var(--bg-primary) 0%,var(--bg-secondary) 100%);position:relative;overflow:hidden}
.hero::before{content:'';position:absolute;top:-200px;right:-200px;width:600px;height:600px;border-radius:50%;background:radial-gradient(circle,rgba(168,197,232,.3) 0%,transparent 70%);filter:blur(40px)}
.hero::after{content:'';position:absolute;bottom:-300px;left:-200px;width:700px;height:700px;border-radius:50%;background:radial-gradient(circle,rgba(232,239,248,.6) 0%,transparent 70%);filter:blur(30px)}
.hero .container{position:relative;z-index:1}
.hero-badge{display:inline-flex;align-items:center;gap:8px;padding:8px 18px;background:var(--white);border:1px solid var(--border);border-radius:100px;font-size:.8rem;color:var(--text-secondary);font-weight:500;margin-bottom:28px;box-shadow:var(--shadow-soft)}
.hero-badge .dot{width:8px;height:8px;border-radius:50%;background:#5BC881;animation:pulse 2s infinite}
@keyframes pulse{0%,100%{opacity:1}50%{opacity:.4}}
.hero h1{font-size:clamp(2.5rem,6vw,4.5rem);font-weight:800;letter-spacing:-.03em;line-height:1.15;margin-bottom:24px}
.hero h1 .accent{color:var(--accent)}
.hero h1 .ko{display:block;font-size:clamp(1.1rem,2.5vw,1.6rem);font-weight:400;color:var(--text-secondary);margin-top:8px}
.hero p{font-size:1.125rem;color:var(--text-secondary);max-width:520px;margin-bottom:40px;line-height:1.8}
.hero-actions{display:flex;gap:16px;align-items:center}
.btn-primary{padding:16px 36px;background:var(--accent);color:var(--white);border-radius:100px;font-weight:600;font-size:.95rem;transition:var(--transition);border:none;cursor:pointer;display:inline-flex;align-items:center;gap:8px}
.btn-primary:hover{background:var(--accent-deep);transform:translateY(-2px);box-shadow:var(--shadow-hover)}
.btn-secondary{padding:16px 36px;background:transparent;color:var(--text-primary);border:1.5px solid var(--border);border-radius:100px;font-weight:600;font-size:.95rem;transition:var(--transition);display:inline-flex;align-items:center;gap:8px}
.btn-secondary:hover{border-color:var(--accent);color:var(--accent)}

/* ═══ SECTION COMMON ═══ */
.section{padding:100px 0}
.section-header{margin-bottom:48px}
.section-header.center{text-align:center}
.section-header h2{font-size:clamp(2rem,4vw,2.75rem);font-weight:700;letter-spacing:-.02em;margin-bottom:8px}
.section-header p{font-size:1.05rem;color:var(--text-secondary)}
.section-tag{display:inline-block;padding:6px 16px;background:var(--bg-tertiary);color:var(--accent-deep);border-radius:100px;font-size:.75rem;font-weight:600;letter-spacing:.05em;text-transform:uppercase;margin-bottom:16px}

/* ═══ CATEGORY TABS ═══ */
.category-section{padding:80px 0;background:var(--bg-secondary)}
.category-tabs{display:flex;gap:8px;margin-bottom:40px;flex-wrap:wrap;justify-content:center}
.category-tab{padding:10px 28px;background:var(--white);border:1px solid var(--border);border-radius:100px;font-size:.9rem;font-weight:600;color:var(--text-secondary);cursor:pointer;transition:var(--transition)}
.category-tab:hover{border-color:var(--accent);color:var(--accent)}
.category-tab.active{background:var(--accent);color:var(--white);border-color:var(--accent)}
.category-carousel-wrap{display:none}
.category-carousel-wrap.active{display:block}

/* ═══ PROJECT CARD ═══ */
.project-card{background:var(--white);border-radius:var(--radius);overflow:hidden;transition:var(--transition);cursor:pointer;box-shadow:var(--shadow-soft);border:1px solid rgba(226,232,240,.4);display:block;color:inherit}
.project-card:hover{transform:translateY(-8px);box-shadow:var(--shadow-hover)}
.card-thumb{aspect-ratio:.56;overflow:hidden;position:relative;background:var(--bg-tertiary)}
.card-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .6s ease}
.project-card:hover .card-thumb img{transform:scale(1.05)}
.card-video-badge{position:absolute;top:12px;right:12px;background:rgba(43,52,69,.8);color:var(--white);width:32px;height:32px;border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:.8rem;backdrop-filter:blur(4px)}
.card-count-badge{position:absolute;bottom:12px;left:12px;background:rgba(43,52,69,.75);color:var(--white);padding:4px 12px;border-radius:100px;font-size:.7rem;font-weight:600;backdrop-filter:blur(4px)}
.card-body{padding:20px}
.card-category{font-size:.7rem;color:var(--accent);font-weight:600;text-transform:uppercase;letter-spacing:.05em;margin-bottom:6px}
.card-body h3{font-size:1.1rem;font-weight:700;margin-bottom:4px;letter-spacing:-.01em}
.card-body p{font-size:.85rem;color:var(--text-secondary)}

/* ═══ SWIPER CONTROLS ═══ */
.carousel-controls{display:flex;align-items:center;justify-content:space-between;margin-bottom:32px}
.carousel-controls .section-header{margin-bottom:0}
.swiper-nav{display:flex;gap:12px;flex-shrink:0}
.swiper-btn{width:44px;height:44px;border-radius:50%;background:var(--white);border:1px solid var(--border);display:flex;align-items:center;justify-content:center;cursor:pointer;transition:var(--transition);color:var(--text-secondary);font-size:1.1rem}
.swiper-btn:hover{background:var(--accent);color:var(--white);border-color:var(--accent)}
.swiper-btn.swiper-button-disabled{opacity:.4;cursor:not-allowed}

/* ═══ MEDIA CAROUSEL ═══ */
.media-carousel-section{margin-bottom:60px}
.media-carousel-section h2{font-size:1.3rem;font-weight:700;margin-bottom:8px;letter-spacing:-.01em}
.carousel-hint{font-size:.85rem;color:var(--text-light);margin-bottom:24px}
.media-slide{cursor:pointer}
.media-slide-card{border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow-soft);transition:var(--transition);border:1px solid rgba(226,232,240,.4);background:var(--white)}
.media-slide-card:hover{transform:translateY(-6px);box-shadow:var(--shadow-hover)}
.media-slide-img{aspect-ratio:.56;overflow:hidden;position:relative}
.media-slide-img img{width:100%;height:100%;object-fit:cover;transition:transform .6s ease}
.media-slide-card:hover .media-slide-img img{transform:scale(1.04)}
.media-type-badge{position:absolute;top:10px;right:10px;background:rgba(43,52,69,.8);color:var(--white);padding:4px 10px;border-radius:100px;font-size:.65rem;font-weight:600;backdrop-filter:blur(4px)}
.media-slide-caption{padding:14px 16px;font-size:.8rem;color:var(--text-secondary);font-weight:500}
.media-slide-card.video{cursor:pointer}
.media-slide-video{aspect-ratio:16/9;overflow:hidden;position:relative}
.media-slide-video img{width:100%;height:100%;object-fit:cover}
.media-slide-video .play-overlay{position:absolute;inset:0;display:flex;align-items:center;justify-content:center;background:rgba(43,52,69,.25);transition:var(--transition)}
.media-slide-card:hover .play-overlay{background:rgba(43,52,69,.1)}
.play-btn{width:56px;height:56px;border-radius:50%;background:rgba(255,255,255,.9);display:flex;align-items:center;justify-content:center;font-size:1.3rem;color:var(--accent-deep);transition:var(--transition)}
.media-slide-card:hover .play-btn{transform:scale(1.12)}
.swiper-slide.video-wide{width:auto!important}
.season-label-inner{display:flex;align-items:center;height:100%;padding:0 8px;font-size:.8rem;font-weight:700;color:var(--accent-deep);text-transform:uppercase;letter-spacing:.1em;white-space:nowrap}

/* ═══ THUMB STRIP ═══ */
.thumb-strip{display:flex;gap:8px;margin-top:20px;overflow-x:auto;padding-bottom:8px;scrollbar-width:thin}
.thumb-strip::-webkit-scrollbar{height:4px}
.thumb-strip::-webkit-scrollbar-track{background:var(--bg-tertiary);border-radius:2px}
.thumb-strip::-webkit-scrollbar-thumb{background:var(--accent-soft);border-radius:2px}
.thumb-item{width:54px;height:96px;border-radius:6px;overflow:hidden;flex-shrink:0;cursor:pointer;opacity:.5;transition:var(--transition);border:2px solid transparent;position:relative}
.thumb-item:hover{opacity:.8}
.thumb-item.active{opacity:1;border-color:var(--accent)}
.thumb-item img{width:100%;height:100%;object-fit:cover}
.thumb-item.video-thumb::after{content:'\25B6';position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);color:white;font-size:.7rem;text-shadow:0 1px 3px rgba(0,0,0,.5)}

/* ═══ PROJECT DETAIL ═══ */
.project-hero{padding:calc(var(--nav-height) + 60px) 0 40px}
.project-hero .container{max-width:900px}
.project-tag{display:inline-block;padding:6px 16px;background:var(--bg-tertiary);color:var(--accent-deep);border-radius:100px;font-size:.75rem;font-weight:600;letter-spacing:.05em;text-transform:uppercase;margin-bottom:20px}
.project-hero h1{font-size:clamp(2rem,5vw,3.2rem);font-weight:800;letter-spacing:-.03em;line-height:1.2;margin-bottom:16px}
.project-subtitle{font-size:1.15rem;color:var(--text-secondary);margin-bottom:40px}
.meta-bar{display:flex;gap:48px;flex-wrap:wrap;padding:24px 0;border-top:1px solid var(--border);border-bottom:1px solid var(--border);margin-bottom:48px}
.meta-label{font-size:.7rem;color:var(--text-light);text-transform:uppercase;letter-spacing:.08em;font-weight:600;margin-bottom:4px}
.meta-value{font-size:.95rem;font-weight:600}
.project-description{max-width:700px;margin-bottom:60px}
.project-description p{font-size:1.05rem;color:var(--text-secondary);line-height:1.9;margin-bottom:16px}
.back-link{font-size:.9rem;color:var(--text-secondary);display:inline-flex;align-items:center;gap:6px;transition:color var(--transition)}
.back-link:hover{color:var(--accent)}
.project-nav{display:flex;justify-content:space-between;padding:48px 0;border-top:1px solid var(--border);margin-top:40px}
.project-nav a{display:flex;align-items:center;gap:12px;color:var(--text-secondary);transition:color var(--transition)}
.project-nav a:hover{color:var(--accent)}
.nav-dir{font-size:.7rem;text-transform:uppercase;letter-spacing:.08em;font-weight:600}
.nav-title{font-size:1rem;font-weight:700}

/* ═══ SERVICES ═══ */
.services-section{background:var(--white)}
.services-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.service-card{background:var(--bg-primary);padding:36px 28px;border-radius:var(--radius);text-align:center;transition:var(--transition);border:1px solid rgba(226,232,240,.4)}
.service-card:hover{transform:translateY(-6px);box-shadow:var(--shadow-soft)}
.service-icon{width:56px;height:56px;margin:0 auto 20px;background:var(--bg-tertiary);border-radius:16px;display:flex;align-items:center;justify-content:center;font-size:1.5rem}
.service-card h3{font-size:1.05rem;font-weight:700;margin-bottom:10px}
.service-card p{font-size:.875rem;color:var(--text-secondary)}

/* ═══ ABOUT ═══ */
.about-grid{display:grid;grid-template-columns:1fr 1fr;gap:64px;align-items:center}
.about-visual{aspect-ratio:1;border-radius:var(--radius);overflow:hidden;display:flex;align-items:center;justify-content:center}
.about-text h2{font-size:clamp(1.75rem,3.5vw,2.5rem);font-weight:700;letter-spacing:-.02em;margin-bottom:20px;line-height:1.3}
.about-text h2 .accent{color:var(--accent)}
.about-text p{color:var(--text-secondary);margin-bottom:16px;line-height:1.9}
.stats{display:flex;gap:40px;margin-top:32px}
.stat-num{font-size:2.5rem;font-weight:800;color:var(--accent);letter-spacing:-.02em}
.stat-label{font-size:.85rem;color:var(--text-secondary)}

/* ═══ CONTACT ═══ */
.contact-section{background:linear-gradient(135deg,var(--bg-secondary) 0%,var(--bg-tertiary) 100%);text-align:center}
.contact-section h2{font-size:clamp(2rem,4vw,3rem);font-weight:800;letter-spacing:-.02em;margin-bottom:20px}
.contact-section p{font-size:1.1rem;color:var(--text-secondary);margin-bottom:40px}

/* ═══ FOOTER ═══ */
.footer{padding:60px 0 40px;background:var(--text-primary);color:var(--text-light)}
.footer .container{display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:20px}
.footer-logo{font-size:1.1rem;font-weight:700;color:var(--white)}
.footer-logo span{color:var(--accent)}
.footer-links{display:flex;gap:24px}
.footer-links a{font-size:.85rem;transition:color var(--transition)}
.footer-links a:hover{color:var(--white)}
.footer-copy{font-size:.8rem;text-align:center;margin-top:32px;padding-top:24px;border-top:1px solid rgba(255,255,255,.1);opacity:.6;width:100%}

/* ═══ LIGHTBOX ═══ */
.lightbox{position:fixed;inset:0;background:rgba(43,52,69,.95);backdrop-filter:blur(8px);z-index:3000;display:flex;align-items:center;justify-content:center;padding:40px;opacity:0;pointer-events:none;transition:opacity .3s ease}
.lightbox.active{opacity:1;pointer-events:all}
.lightbox-content{position:relative;max-height:90vh;max-width:90vw;display:flex;align-items:center;justify-content:center}
.lightbox img{max-height:85vh;max-width:85vw;border-radius:12px;box-shadow:0 20px 60px rgba(0,0,0,.4)}
.lightbox-iframe-wrap{width:min(90vw,1280px);aspect-ratio:16/9;border-radius:12px;overflow:hidden;box-shadow:0 20px 60px rgba(0,0,0,.4)}
.lightbox iframe{width:100%;height:100%;border:none}
.lightbox-close{position:absolute;top:-44px;right:0;font-size:1.8rem;color:var(--white);cursor:pointer;background:none;border:none;opacity:.7;transition:opacity .2s}
.lightbox-close:hover{opacity:1}
.lightbox-counter{position:absolute;bottom:-32px;left:50%;transform:translateX(-50%);color:var(--white);opacity:.6;font-size:.85rem}
.lightbox-prev,.lightbox-next{position:absolute;top:50%;transform:translateY(-50%);width:48px;height:48px;border-radius:50%;background:rgba(255,255,255,.1);border:none;color:var(--white);font-size:1.3rem;cursor:pointer;transition:var(--transition);display:flex;align-items:center;justify-content:center;z-index:1}
.lightbox-prev{left:-60px}.lightbox-next{right:-60px}
.lightbox-prev:hover,.lightbox-next:hover{background:rgba(255,255,255,.25)}

/* ═══ FILTER BAR ═══ */
.filter-bar{display:flex;gap:12px;margin-bottom:40px;flex-wrap:wrap}
.filter-btn{padding:8px 20px;background:var(--white);border:1px solid var(--border);border-radius:100px;font-size:.85rem;font-weight:500;color:var(--text-secondary);cursor:pointer;transition:var(--transition)}
.filter-btn:hover{border-color:var(--accent);color:var(--accent)}
.filter-btn.active{background:var(--accent);color:var(--white);border-color:var(--accent)}
.works-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:28px}
.work-card{background:var(--white);border-radius:var(--radius);overflow:hidden;transition:var(--transition);cursor:pointer;box-shadow:var(--shadow-soft);border:1px solid rgba(226,232,240,.4)}
.work-card:hover{transform:translateY(-8px);box-shadow:var(--shadow-hover)}

/* ═══ ANIMATIONS ═══ */
.reveal{opacity:0;transform:translateY(40px);transition:opacity .8s ease,transform .8s ease}
.reveal.visible{opacity:1;transform:translateY(0)}

/* ═══ RESPONSIVE ═══ */
@media(max-width:968px){
    .works-grid{grid-template-columns:repeat(2,1fr)}
    .services-grid{grid-template-columns:repeat(2,1fr)}
    .about-grid{grid-template-columns:1fr;gap:40px}
    .about-visual{max-width:400px;margin:0 auto}
}
@media(max-width:640px){
    .container{padding:0 20px}
    .nav-links{display:none}.nav-toggle{display:block}
    .works-grid{grid-template-columns:1fr}
    .services-grid{grid-template-columns:1fr}
    .hero{padding-top:calc(var(--nav-height) + 20px)}
    .hero-actions{flex-direction:column;width:100%}
    .btn-primary,.btn-secondary{width:100%;justify-content:center}
    .stats{flex-direction:column;gap:20px}
    .carousel-controls{flex-direction:column;align-items:flex-start;gap:16px}
    .meta-bar{gap:24px}
    .project-nav{flex-direction:column;gap:20px}
    .lightbox-prev{left:8px}.lightbox-next{right:8px}
}