/* ============================================
   Vietnam 21 dage — Stylesheet
   Sections: Variables · Base · Nav · Hero ·
   Layout · Plan Switcher · Timeline · Footer ·
   Modal · Gallery · Lightbox · Nightlife · A11y
   ============================================ */

/* -- Variables -- */
:root {
  --teal:#0f5e5a; --teal-dark:#0a423f; --teal-light:#e9f3f1;
  --amber:#c2410c; --amber-dark:#9a3408; --amber-light:#ea8a3c; --amber-bg:#fbf0e6;
  --cream:#faf6ef; --cream-2:#f1e9da; --ink:#1c2622; --muted:#5b6b64; --line:#e4dcc9;
  --shadow:0 18px 40px -18px rgba(15,94,90,0.35);
  --shadow-lg:0 30px 70px -25px rgba(10,40,38,0.5);
}

/* -- Base -- */
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{font-family:'Inter',system-ui,-apple-system,sans-serif;color:var(--ink);background:var(--cream);line-height:1.6;-webkit-font-smoothing:antialiased}
body.lock{overflow:hidden}
h1,h2,h3,h4{font-family:'Fraunces',Georgia,serif;font-weight:600;line-height:1.15;letter-spacing:-0.01em}
img{display:block;max-width:100%}
button{font-family:inherit;cursor:pointer}

/* -- Nav -- */
nav{position:sticky;top:0;z-index:50;background:rgba(250,246,239,0.88);-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);border-bottom:1px solid var(--line)}
.nav-inner{max-width:1000px;margin:0 auto;padding:0.85rem 1.5rem;display:flex;align-items:center;justify-content:space-between;gap:1rem}
.brand{font-family:'Fraunces',serif;font-weight:700;font-size:1.15rem;color:var(--teal);display:flex;align-items:center;gap:0.5rem}
.brand span{color:var(--amber)}
.nav-links{display:flex;gap:1.4rem}
.nav-links a{text-decoration:none;font-size:0.9rem;font-weight:500;color:var(--muted);transition:color 0.2s}
.nav-links a:hover{color:var(--teal)}
@media(max-width:600px){.nav-links{display:none}}

/* -- Hero -- */
.hero{position:relative;min-height:72vh;display:flex;align-items:flex-end;color:#fff;overflow:hidden}
.hero-bg{position:absolute;inset:0;background:url('https://upload.wikimedia.org/wikipedia/commons/thumb/1/1c/Lan_Ha_bay_panorama_ter.jpg/1280px-Lan_Ha_bay_panorama_ter.jpg') center/cover no-repeat;background-color:#0a423f;transform:scale(1.05)}
.hero::after{content:"";position:absolute;inset:0;background:linear-gradient(to top,rgba(10,40,38,0.88) 0%,rgba(10,40,38,0.3) 55%,rgba(10,40,38,0.5) 100%)}
.hero-content{position:relative;z-index:2;max-width:1000px;width:100%;margin:0 auto;padding:3rem 1.5rem 4rem}
.eyebrow{display:inline-block;font-size:0.78rem;letter-spacing:0.18em;text-transform:uppercase;font-weight:600;background:rgba(255,255,255,0.15);border:1px solid rgba(255,255,255,0.3);padding:0.4rem 0.9rem;border-radius:999px;margin-bottom:1.1rem;-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px)}
.hero h1{font-size:clamp(2.4rem,6vw,4.2rem);font-weight:700;max-width:16ch;text-shadow:0 2px 30px rgba(0,0,0,0.3)}
.hero h1 em{font-style:italic;color:var(--amber-light)}
.hero p{font-size:clamp(1rem,2vw,1.18rem);margin-top:1rem;max-width:48ch;opacity:0.95}
.hero-cta{margin-top:1.6rem;display:flex;gap:0.8rem;flex-wrap:wrap}
.btn{display:inline-block;text-decoration:none;font-weight:600;font-size:0.95rem;padding:0.8rem 1.4rem;border-radius:10px;transition:transform 0.15s,background 0.2s;border:none}
.btn-primary{background:var(--amber);color:#fff}
.btn-primary:hover{background:var(--amber-dark);transform:translateY(-2px)}
.btn-ghost{background:rgba(255,255,255,0.12);color:#fff;border:1px solid rgba(255,255,255,0.4)}
.btn-ghost:hover{background:rgba(255,255,255,0.22)}

/* -- Layout -- */
section{padding:4rem 1.5rem}
.container{max-width:1000px;margin:0 auto}
.section-head{max-width:680px;margin-bottom:2rem}
.kicker{color:var(--amber);font-weight:600;font-size:0.8rem;letter-spacing:0.16em;text-transform:uppercase}
.section-head h2{font-size:clamp(1.8rem,4vw,2.6rem);margin:0.5rem 0 0.6rem}
.section-head p{color:var(--muted);font-size:1rem}

/* -- Phase band -- */
.phase-band{display:flex;gap:1rem;flex-wrap:wrap;margin-bottom:2rem}
.phase-pill{background:#fff;border:1px solid var(--line);border-radius:999px;padding:0.5rem 1.1rem;font-size:0.85rem;font-weight:500;color:var(--ink);display:flex;align-items:center;gap:0.5rem}
.phase-pill .pdot{width:10px;height:10px;border-radius:50%}
.phase-pill.nord .pdot{background:var(--teal)}
.phase-pill.central .pdot{background:var(--amber)}
.phase-pill strong{font-family:'Fraunces',serif;font-weight:600;color:var(--teal-dark)}

/* -- Plan switcher -- */
.plan-switcher{display:flex;gap:0.5rem;flex-wrap:wrap;margin-bottom:1.5rem;background:#fff;border:1px solid var(--line);border-radius:14px;padding:0.5rem}
.plan-tab{flex:1;min-width:160px;background:transparent;border:none;border-radius:10px;padding:0.8rem 1rem;text-align:left;transition:background 0.2s;font:inherit;color:var(--muted)}
.plan-tab:hover{background:var(--cream-2)}
.plan-tab.active{background:var(--teal);color:#fff}
.plan-tab .pt-title{font-family:'Fraunces',serif;font-weight:600;font-size:0.98rem;display:block;margin-bottom:0.15rem}
.plan-tab .pt-desc{font-size:0.76rem;opacity:0.8}
@media(max-width:600px){.plan-tab{min-width:calc(50% - 0.25rem)}}

/* -- Export bar -- */
.export-bar{display:flex;gap:0.5rem;align-items:center;flex-wrap:wrap;margin-bottom:1.8rem}
.export-label{font-size:0.82rem;color:var(--muted);font-weight:500}
.export-btn{display:inline-flex;align-items:center;gap:0.4rem;background:#fff;border:1px solid var(--line);border-radius:10px;padding:0.55rem 1rem;font:inherit;font-size:0.85rem;font-weight:600;color:var(--teal);cursor:pointer;transition:background 0.2s,border-color 0.2s}
.export-btn:hover{background:var(--teal-light);border-color:var(--teal)}
.export-btn svg{width:15px;height:15px}

/* -- Print styles (PDF via print dialog) -- */
@media print{
  nav,.hero,.plan-switcher,.export-bar,.phase-band,.lightbox,.modal{display:none!important}
  body{background:#fff;color:#000}
  .timeline::before{display:none}
  .tl-item{width:100%!important;left:0!important;text-align:left!important;padding:0 0 1rem 0!important;page-break-inside:avoid}
  .tl-item .dot{display:none}
  .tl-card{box-shadow:none!important;border:1px solid #ccc!important;break-inside:avoid}
  .tl-card img{height:120px!important}
  .tl-open-hint{display:none}
  section{padding:1rem 0}
  .tl-day{color:#c2410c;background:#fbf0e6}
  .tag{color:#0f5e5a;background:#e9f3f1}
  footer{background:none;color:#666;border-top:1px solid #ccc;margin-top:1rem}
}

/* -- Timeline -- */
.timeline{position:relative}
.timeline::before{content:"";position:absolute;left:50%;top:0;bottom:0;width:2px;background:var(--line);transform:translateX(-50%)}
.tl-item{position:relative;width:50%;padding:0 2.5rem 2rem}
.tl-item:nth-child(odd){left:0;text-align:right}
.tl-item:nth-child(even){left:50%}
.tl-item .dot{position:absolute;top:0.35rem;width:18px;height:18px;border-radius:50%;background:var(--amber);border:4px solid var(--cream);box-shadow:0 0 0 2px var(--line)}
.tl-item:nth-child(odd) .dot{right:-9px}
.tl-item:nth-child(even) .dot{left:-9px}
.tl-card{background:#fff;border:1px solid var(--line);border-radius:16px;overflow:hidden;box-shadow:var(--shadow);text-align:left;transition:transform 0.2s,box-shadow 0.2s;cursor:pointer;width:100%;padding:0;font:inherit;color:inherit}
.tl-card:hover,.tl-card:focus-visible{transform:translateY(-4px);box-shadow:var(--shadow-lg);outline:none}
.tl-card img{width:100%;height:180px;object-fit:cover;background:linear-gradient(135deg,var(--teal),var(--amber))}
.tl-body{padding:1.1rem 1.3rem 1.3rem}
.tl-day{display:inline-block;font-size:0.7rem;font-weight:700;letter-spacing:0.1em;text-transform:uppercase;color:var(--amber);background:var(--amber-bg);padding:0.25rem 0.6rem;border-radius:6px;margin-bottom:0.5rem}
.tl-body h3{font-size:1.18rem;margin-bottom:0.35rem}
.tl-body p{font-size:0.88rem;color:var(--muted)}
.tl-body .tags{margin-top:0.6rem;display:flex;flex-wrap:wrap;gap:0.35rem}
.tl-item:nth-child(odd) .tags{justify-content:flex-end}
.tag{font-size:0.7rem;font-weight:500;color:var(--teal);background:var(--teal-light);padding:0.2rem 0.55rem;border-radius:999px}
.tl-open-hint{margin-top:0.65rem;font-size:0.78rem;font-weight:600;color:var(--teal);display:flex;align-items:center;gap:0.3rem}
.tl-item:nth-child(odd) .tl-open-hint{justify-content:flex-end}
.tl-open-hint svg{width:13px;height:13px;transition:transform 0.2s}
.tl-card:hover .tl-open-hint svg{transform:translateX(4px)}
@media(max-width:860px){
  .timeline::before{left:20px}
  .tl-item,.tl-item:nth-child(even){width:100%;left:0;text-align:left;padding:0 0 2rem 3rem}
  .tl-item:nth-child(odd){text-align:left}
  .tl-item:nth-child(odd) .dot{right:auto;left:11px}
  .tl-item:nth-child(even) .dot{left:11px}
  .tl-item:nth-child(odd) .tags,.tl-item:nth-child(odd) .tl-open-hint{justify-content:flex-start}
}

/* -- Footer -- */
footer{background:var(--teal-dark);color:#cfe2df;text-align:center;padding:2.5rem 1.5rem}
footer .brand{color:#fff;justify-content:center;margin-bottom:0.5rem}
footer p{font-size:0.82rem;opacity:0.8}

/* -- Modal -- */
.modal{position:fixed;inset:0;z-index:100;display:none;align-items:flex-start;justify-content:center;padding:2rem 1rem;overflow-y:auto}
.modal.open{display:flex}
.modal-backdrop{position:fixed;inset:0;background:rgba(10,30,28,0.72);-webkit-backdrop-filter:blur(6px);backdrop-filter:blur(6px);animation:fade 0.25s ease}
@keyframes fade{from{opacity:0}to{opacity:1}}
@keyframes rise{from{opacity:0;transform:translateY(24px)}to{opacity:1;transform:translateY(0)}}
.modal-dialog{position:relative;z-index:2;background:var(--cream);width:100%;max-width:860px;border-radius:20px;overflow:hidden;box-shadow:var(--shadow-lg);animation:rise 0.3s ease;margin:auto 0}
.modal-close{position:absolute;top:1rem;right:1rem;z-index:5;width:42px;height:42px;border-radius:50%;border:none;background:rgba(10,40,38,0.7);color:#fff;font-size:1.5rem;display:flex;align-items:center;justify-content:center;transition:background 0.2s,transform 0.2s}
.modal-close:hover{background:var(--amber);transform:rotate(90deg)}

/* -- Gallery (inside modal) -- */
.gallery-main{position:relative;width:100%;height:340px;background:linear-gradient(135deg,var(--teal-dark),var(--teal));overflow:hidden;cursor:zoom-in}
.gallery-main:hover img{opacity:0.85}
.gallery-main img{width:100%;height:100%;object-fit:cover;transition:opacity 0.3s,transform 0.4s}
.gallery-main:hover img{transform:scale(1.03)}
.gal-zoom-hint{position:absolute;bottom:0.8rem;right:0.8rem;background:rgba(10,40,38,0.8);color:#fff;font-size:0.76rem;padding:0.4rem 0.8rem;border-radius:8px;display:flex;align-items:center;gap:0.4rem;pointer-events:none;opacity:0.85;transition:opacity 0.2s,transform 0.2s}
.gallery-main:hover .gal-zoom-hint{opacity:1;transform:translateY(-2px)}
.gal-nav{position:absolute;top:50%;transform:translateY(-50%);width:44px;height:44px;border-radius:50%;border:none;background:rgba(10,40,38,0.55);color:#fff;font-size:1.5rem;display:flex;align-items:center;justify-content:center;transition:background 0.2s;line-height:1}
.gal-nav:hover{background:var(--amber)}
.gal-nav.prev{left:1rem}
.gal-nav.next{right:1rem}
.gal-counter{position:absolute;bottom:0.8rem;left:50%;transform:translateX(-50%);background:rgba(10,40,38,0.7);color:#fff;font-size:0.76rem;padding:0.25rem 0.7rem;border-radius:999px}
.gallery-thumbs{display:flex;gap:0.4rem;padding:0.6rem 1rem;overflow-x:auto;background:#fff;border-bottom:1px solid var(--line)}
.gallery-thumbs img{width:60px;height:46px;object-fit:cover;border-radius:6px;opacity:0.55;cursor:pointer;transition:opacity 0.2s;flex:0 0 auto;background:var(--cream-2)}
.gallery-thumbs img:hover{opacity:0.85}
.gallery-thumbs img.active{opacity:1;outline:2px solid var(--amber)}

/* -- Modal body -- */
.modal-body{padding:1.6rem 1.8rem 2.2rem}
@media(max-width:600px){.modal{padding:0.5rem}.modal-dialog{border-radius:14px}.gallery-main{height:220px}.modal-body{padding:1.2rem 1.2rem 1.8rem}}
.modal-kicker{font-size:0.76rem;font-weight:600;letter-spacing:0.14em;text-transform:uppercase;color:var(--amber)}
.modal-title{font-size:clamp(1.6rem,4vw,2.1rem);margin:0.3rem 0 0.4rem}
.modal-sub{color:var(--muted);font-size:0.96rem;margin-bottom:1.3rem}
.m-section{margin-bottom:1.3rem}
.m-section h3{font-size:1.05rem;margin-bottom:0.45rem;color:var(--teal-dark);display:flex;align-items:center;gap:0.5rem}
.m-section h3::before{content:"";width:18px;height:2px;background:var(--amber);display:inline-block}
.m-section p{font-size:0.93rem;color:var(--ink)}
.activities{list-style:none;display:grid;grid-template-columns:1fr 1fr;gap:0.35rem 1rem}
@media(max-width:560px){.activities{grid-template-columns:1fr}}
.activities li{font-size:0.89rem;padding:0.3rem 0 0.3rem 1.4rem;position:relative;color:var(--ink)}
.activities li::before{content:"▸";position:absolute;left:0;top:0.3rem;color:var(--amber);font-weight:700}
.praktisk-list{list-style:none}
.praktisk-list li{font-size:0.87rem;padding:0.4rem 0 0.4rem 1.4rem;position:relative;color:var(--muted);border-top:1px dashed var(--line)}
.praktisk-list li:first-child{border-top:none}
.praktisk-list li::before{content:"›";position:absolute;left:0.3rem;top:0.4rem;color:var(--teal);font-weight:700}
.praktisk-list li strong{color:var(--ink)}
.modal-tags{display:flex;flex-wrap:wrap;gap:0.4rem;margin-top:0.4rem}
.alert{margin-top:1rem;padding:0.85rem 1.05rem;border-radius:10px;font-size:0.87rem;background:var(--amber-bg);border-left:3px solid var(--amber);color:var(--ink)}
.alert strong{color:var(--amber-dark)}

/* -- Lightbox (fullscreen image) -- */
.lightbox{position:fixed;inset:0;z-index:200;display:none;align-items:center;justify-content:center;background:rgba(5,15,14,0.92);-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);padding:2rem;cursor:zoom-out}
.lightbox.open{display:flex;animation:fade 0.2s ease}
.lightbox img{max-width:100%;max-height:100%;object-fit:contain;border-radius:6px;box-shadow:0 20px 60px rgba(0,0,0,0.5)}
.lightbox-close{position:absolute;top:1.2rem;right:1.2rem;width:44px;height:44px;border-radius:50%;border:none;background:rgba(255,255,255,0.15);color:#fff;font-size:1.6rem;display:flex;align-items:center;justify-content:center;transition:background 0.2s,transform 0.2s}
.lightbox-close:hover{background:var(--amber);transform:rotate(90deg)}
.lb-nav{position:absolute;top:50%;transform:translateY(-50%);width:52px;height:52px;border-radius:50%;border:none;background:rgba(255,255,255,0.12);color:#fff;font-size:1.8rem;display:flex;align-items:center;justify-content:center;transition:background 0.2s;line-height:1}
.lb-nav:hover{background:var(--amber)}
.lb-nav.prev{left:1.2rem}
.lb-nav.next{right:1.2rem}
.lb-counter{position:absolute;bottom:1.2rem;left:50%;transform:translateX(-50%);background:rgba(255,255,255,0.15);color:#fff;font-size:0.8rem;padding:0.3rem 0.8rem;border-radius:999px}
@media(max-width:600px){.lb-nav{width:40px;height:40px;font-size:1.4rem}.lb-nav.prev{left:0.5rem}.lb-nav.next{right:0.5rem}.lightbox{padding:1rem}}

/* -- Nightlife section -- */
.nightlife{background:linear-gradient(135deg,#1a2e2c,#0a1f1d);color:#eaf4f2;border-radius:14px;padding:1.4rem 1.6rem;margin-bottom:1.3rem;border-left:4px solid var(--amber)}
.nightlife h3{color:#fff;font-size:1.05rem;margin-bottom:0.6rem;display:flex;align-items:center;gap:0.5rem}
.nightlife h3::before{content:"";width:18px;height:2px;background:var(--amber-light);display:inline-block}
.nightlife h3 .emoji{font-size:1.15rem}
.nightlife-list{list-style:none;display:grid;grid-template-columns:1fr 1fr;gap:0.4rem 1rem}
@media(max-width:560px){.nightlife-list{grid-template-columns:1fr}}
.nightlife-list li{font-size:0.88rem;padding:0.3rem 0 0.3rem 1.4rem;position:relative;color:#cfe2df}
.nightlife-list li::before{content:"▸";position:absolute;left:0;top:0.3rem;color:var(--amber-light);font-weight:700}
.nightlife-list li strong{color:#fff}
.nightlife-tip{margin-top:0.7rem;font-size:0.82rem;color:var(--amber-light);font-style:italic;padding:0.5rem 0.8rem;background:rgba(234,138,60,0.1);border-radius:8px}

/* -- Accessibility -- */
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,*::before,*::after{transition-duration:0.01ms!important;animation-duration:0.01ms!important;animation-iteration-count:1!important}}
a:focus-visible,.btn:focus-visible,button:focus-visible,.tl-card:focus-visible{outline:2px solid var(--amber);outline-offset:3px;border-radius:6px}

/* -- Budget calculator -- */
.budget-section{background:var(--cream-2);border-radius:18px;padding:2rem 1.8rem;margin-top:2rem;border:1px solid var(--line)}
.budget-section h2{font-size:1.5rem;margin-bottom:0.4rem}
.budget-section .budget-sub{color:var(--muted);font-size:0.92rem;margin-bottom:1.4rem}
.budget-levels{display:flex;gap:0.5rem;margin-bottom:1.5rem;flex-wrap:wrap}
.budget-level{flex:1;min-width:120px;background:#fff;border:2px solid var(--line);border-radius:12px;padding:0.8rem 1rem;text-align:center;font:inherit;cursor:pointer;transition:border-color 0.2s,background 0.2s}
.budget-level:hover{border-color:var(--teal)}
.budget-level.active{border-color:var(--teal);background:var(--teal-light)}
.budget-level .bl-name{font-family:'Fraunces',serif;font-weight:600;font-size:0.95rem;color:var(--ink);display:block}
.budget-level.active .bl-name{color:var(--teal-dark)}
.budget-level .bl-desc{font-size:0.72rem;color:var(--muted);margin-top:0.2rem}
.budget-grid{display:grid;grid-template-columns:1fr 1fr;gap:1.2rem}
@media(max-width:640px){.budget-grid{grid-template-columns:1fr}}
.budget-card{background:#fff;border-radius:14px;padding:1.3rem 1.5rem;border:1px solid var(--line)}
.budget-card h3{font-size:1.05rem;margin-bottom:0.7rem;color:var(--teal-dark)}
.budget-line{display:flex;justify-content:space-between;padding:0.35rem 0;border-bottom:1px dashed var(--line);font-size:0.88rem}
.budget-line:last-of-type{border-bottom:none}
.budget-line .bl-label{color:var(--muted)}
.budget-line .bl-value{font-weight:600;color:var(--ink)}
.budget-total{margin-top:0.8rem;padding-top:0.7rem;border-top:2px solid var(--teal);display:flex;justify-content:space-between;align-items:baseline}
.budget-total .bt-label{font-family:'Fraunces',serif;font-weight:700;font-size:1.05rem;color:var(--teal-dark)}
.budget-total .bt-value{font-family:'Fraunces',serif;font-weight:700;font-size:1.6rem;color:var(--amber)}
.budget-total .bt-per{font-size:0.78rem;color:var(--muted);margin-left:0.3rem}
.budget-pp-note{font-size:0.8rem;color:var(--muted);margin-top:0.5rem;text-align:right;font-style:italic}
@media print{.budget-section{break-inside:avoid}}