/* ============================================================
   Viveo TV — Shared Stylesheet
   Tokens, reset, nav, footer, utilities, keyframes.
   Included by: index.html, device.html, admin-login.html
   ============================================================ */

/* ===== Tokens ===== */
:root {
  --bg:             oklch(18% 0.04 265);
  --bg-alt:         oklch(14% 0.035 265);
  --surface:        oklch(22% 0.035 265);
  --fg:             oklch(82% 0.015 265);
  --muted:          oklch(55% 0.025 265);
  --footer-muted:   oklch(70% 0.02 265);
  --border:         oklch(30% 0.03 265);
  --accent:         oklch(65% 0.18 45);
  --teal:           oklch(65% 0.15 190);
  --purple:         oklch(55% 0.22 300);
  --success:        oklch(60% 0.16 145);
  --warn:           oklch(65% 0.15 85);
  --danger:         oklch(55% 0.18 30);
  --font-display:   'Iowan Old Style', Georgia, 'Times New Roman', serif;
  --font-body:      -apple-system, BlinkMacSystemFont, 'Segoe UI', system-ui, sans-serif;
  --font-mono:      ui-monospace, 'SF Mono', Menlo, monospace;
}

/* ===== Reset & Base ===== */
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{background:var(--bg);color:var(--fg);scroll-behavior:smooth;overflow-x:hidden}
body{
  font-family:var(--font-body);
  color:var(--fg);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
  -moz-osx-font-smoothing:grayscale;
  line-height:1.5;
  overflow-x:hidden;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
button{cursor:pointer;font:inherit;border:0;background:none;color:inherit}
input,select,textarea{font:inherit;color:inherit;width:100%}

/* ===== Scrollbar ===== */
::-webkit-scrollbar{width:6px;height:6px}
::-webkit-scrollbar-track{background:transparent}
::-webkit-scrollbar-thumb{background:var(--border);border-radius:3px}
::-webkit-scrollbar-thumb:hover{background:var(--muted)}

/* ===== Keyframes ===== */
@keyframes blink{
  0%,100%{opacity:1}
  50%{opacity:0}
}
@keyframes fade-in{
  0%{opacity:0}
  100%{opacity:1}
}
@keyframes fade-in-up{
  0%{opacity:0;transform:translateY(20px)}
  100%{opacity:1;transform:translateY(0)}
}
@keyframes spin{to{transform:rotate(360deg)}}

/* ===== Utilities ===== */
.container{max-width:1200px;margin:0 auto;padding:0 32px}
.section{padding:120px 0;position:relative}
.section-header{text-align:center;margin-bottom:56px}
.section-header h2{
  font-family:var(--font-display);
  font-size:clamp(32px,4.5vw,52px);
  font-weight:600;
  letter-spacing:-0.02em;
  line-height:1.15;
  color:#fff;
}
.section-header p{
  font-size:clamp(16px,1.8vw,18px);
  color:var(--muted);
  margin-top:12px;
  max-width:520px;
  margin-left:auto;
  margin-right:auto;
  line-height:1.6;
}
.fade-in{opacity:1}
.js .fade-in{opacity:0}
.fade-in.visible{animation:fade-in .6s ease forwards}
.fade-in-up{opacity:1;transform:translateY(0)}
.js .fade-in-up{opacity:0;transform:translateY(20px)}
.fade-in-up.visible{animation:fade-in-up .6s ease forwards}
.tag{display:block;width:fit-content;margin:0 auto 16px;font-size:11px;font-weight:600;letter-spacing:0.08em;text-transform:uppercase;color:var(--teal);border:1px solid rgba(25,211,197,0.25);padding:4px 12px 6px;border-radius:999px}

/* ===== Nav (Pill design) ===== */
/* Pill wrapper — provides top padding, centers the pill */
#nav{
  position:fixed;top:0;left:0;right:0;
  z-index:1000;
  pointer-events:none;
  padding-top:16px;
}
@media(min-width:768px){#nav{padding-top:24px}}
.nav-pill-wrap{
  display:flex;
  justify-content:center;
  padding:0 20px;
}
.nav-pill{
  display:flex;
  align-items:center;
  gap:28px;
  padding:16px 24px 16px 28px;
  background:oklch(from var(--bg) l c h / 0.75);
  backdrop-filter:blur(20px);
  -webkit-backdrop-filter:blur(20px);
  border-radius:16px;
  border:1px solid var(--border);
  box-shadow:0 4px 24px rgba(0,0,0,0.25);
  pointer-events:auto;
  width:auto;
  min-width:320px;
}
@media(min-width:768px){
  .nav-pill{padding:16px 32px 16px 36px;gap:40px;min-width:420px}
}
@media(max-width:767px){
  .nav-pill{width:100%;min-width:0;max-width:100%}
}
/* Logo */
.nav-logo{display:flex;align-items:center;flex-shrink:0}
.nav-logo img{height:44px;width:auto;display:block}
@media(min-width:768px){.nav-logo img{height:48px}}

/* Desktop links row */
.nav-links{
  display:none;
  align-items:center;
  gap:36px;
}
@media(min-width:1025px){
  .nav-links{display:flex;justify-content:center}
}
.nav-links > a,
.nav-links .nav-dropdown-toggle{
  font-size:15px;
  font-weight:510;
  color:var(--muted);
  letter-spacing:0.015em;
  transition:color .25s;
  white-space:nowrap;
  position:relative;
  padding:8px 10px;
}
.nav-links > a:hover,
.nav-links .nav-dropdown-toggle:hover{color:var(--accent)}
.nav-links > a.active{color:var(--accent)}

/* More dropdown */
.nav-dropdown{
  position:relative;
}
.nav-dropdown-toggle{
  display:flex;
  align-items:center;
  gap:6px;
  font-size:15px;
  font-weight:510;
  color:var(--muted);
  letter-spacing:0.015em;
  transition:color .25s;
  padding:0;
  background:none;
  border:none;
  cursor:pointer;
}
.nav-dropdown-toggle:hover{color:var(--accent)}
.nav-dropdown-toggle[aria-expanded="true"]{color:var(--accent)}
.dd-chevron{transition:transform .25s ease}
.nav-dropdown-toggle[aria-expanded="true"] .dd-chevron{transform:rotate(180deg)}
.nav-dropdown-menu{
  position:absolute;
  top:calc(100% + 8px);
  right:0;
  min-width:190px;
  background:var(--surface);
  border:1px solid var(--border);
  border-radius:10px;
  padding:6px;
  opacity:0;
  visibility:hidden;
  transform:translateY(-4px);
  transition:opacity .2s ease,visibility .2s ease,transform .2s ease;
  box-shadow:0 8px 32px rgba(0,0,0,0.3);
}
.nav-dropdown[data-open="true"] .nav-dropdown-menu,
.nav-dropdown:hover .nav-dropdown-menu{
  opacity:1;
  visibility:visible;
  transform:translateY(0);
}
.nav-dropdown-menu a{
  display:block;
  padding:10px 16px;
  font-size:15px;
  font-weight:510;
  letter-spacing:0.015em;
  color:var(--muted);
  border-radius:6px;
  transition:all .2s;
}
.nav-dropdown-menu a:hover{
  color:var(--accent);
  background:oklch(from var(--bg) l c h / 0.5);
}
.nav-dd-left{left:0;right:auto}

/* On non-home pages: hide dropdown menu & chevron, make toggle behave as link */
body:not(.nav-home-page) .nav-dropdown-menu{display:none}
body:not(.nav-home-page) .dd-chevron{display:none}

/* Hamburger toggle */
.nav-toggle{
  display:flex;
  flex-direction:column;
  gap:5px;
  width:28px;
  cursor:pointer;
  background:none;
  border:none;
  padding:0;
  margin-left:auto;
}
@media(min-width:1025px){
  .nav-toggle{display:none}
}
.nav-toggle span{display:block;height:2px;background:var(--fg);border-radius:2px;transition:transform .3s,opacity .3s}
.nav-toggle.active span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.nav-toggle.active span:nth-child(2){opacity:0}
.nav-toggle.active span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}

/* Overlay */
.nav-overlay{
  display:none;
  position:fixed;inset:0;z-index:999;
  background:oklch(from var(--bg) l c h / 0.95);
  backdrop-filter:blur(12px);
  -webkit-backdrop-filter:blur(12px);
  flex-direction:column;
  overflow-y:auto;
  -webkit-overflow-scrolling:touch;
  padding:20px 0;
}
.nav-overlay.open{display:flex}
.nav-overlay-inner{
  display:flex;
  flex-direction:column;
  align-items:center;
  gap:20px;
  padding:140px 32px 24px;
}
.nav-overlay-inner a{font-size:18px;color:var(--fg);transition:color .2s;padding:8px 16px}
.nav-overlay-inner a:hover{color:var(--accent)}
.overlay-divider{
  width:40px;
  border:none;
  border-top:1px solid var(--border);
  margin:6px 0;
}
/* ===== Footer ===== */
.footer{
  background:var(--bg-alt);
  border-top:1px solid var(--border);
  padding:80px 0 0;
}
.footer-inner{max-width:1200px;margin:0 auto;padding:0 32px}
.footer-grid{
  display:grid;
  grid-template-columns:2fr 1fr 1fr;
  gap:64px;
}
@media(max-width:768px){
  .footer-grid{grid-template-columns:1fr;gap:48px}
}
.footer-brand{}
.footer-logo{height:52px;width:auto;margin-bottom:16px}
.footer-brand p{font-size:15px;color:var(--footer-muted);line-height:1.7;max-width:360px}
.footer-social{display:flex;gap:12px;margin-top:24px}
.footer-social a,
.footer-social-icon{
  width:40px;height:40px;
  border-radius:50%;
  border:1px solid var(--border);
  display:grid;place-items:center;
  color:var(--muted);
  transition:all .25s;
}
.footer-social-icon:not(a){cursor:default;opacity:0.6}
.footer-social a:hover,
.footer-social-icon:hover{border-color:var(--accent);color:var(--accent)}
.footer-social a svg,
.footer-social-icon svg{width:18px;height:18px}
.footer-col{}
.footer-col h2{
  font-size:14px;
  font-weight:600;
  letter-spacing:0.04em;
  text-transform:uppercase;
  color:var(--footer-muted);
  margin-bottom:20px;
}
.footer-col ul{list-style:none;display:flex;flex-direction:column;gap:12px}
.footer-col ul li a{font-size:15px;color:var(--footer-muted);transition:color .2s;text-decoration:underline;text-decoration-color:transparent;text-underline-offset:3px}
.footer-col ul li a:hover,.footer-col ul li a:focus-visible{text-decoration-color:currentColor}
.footer-col ul li a:hover{color:var(--accent)}
.footer-bottom{
  margin-top:64px;
  border-top:1px solid var(--border);
  padding:24px 0;
}
.footer-bottom-inner{max-width:1200px;margin:0 auto;padding:0 32px}
.footer-bottom p{font-size:13px;color:var(--footer-muted);text-align:center;letter-spacing:0.02em}
.footer-bottom a{color:var(--fg);transition:color .2s}
.footer-bottom a:hover{color:var(--accent)}

/* ===== Download Spec Table ===== */
.spec-section{padding:80px 0;background:var(--bg-alt)}
.spec-grid{
  max-width:900px;
  margin:0 auto;
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:1px;
  background:var(--border);
  border-radius:12px;
  overflow:hidden;
  border:1px solid var(--border);
}
.spec-cell{
  display:flex;
  align-items:center;
  gap:14px;
  padding:18px 24px;
  background:var(--surface);
  font-size:14px;
  line-height:1.5;
}
.spec-label{
  color:var(--muted);
  letter-spacing:0.02em;
  flex-shrink:0;
  min-width:80px;
  font-weight:510;
}
.spec-value{color:#fff}
.spec-accent{color:var(--accent);font-weight:600}
.spec-badge{
  display:inline-block;
  padding:2px 10px;
  background:rgba(255,122,0,0.12);
  border-radius:4px;
  font-size:12px;
  font-weight:600;
  letter-spacing:0.06em;
  text-transform:uppercase;
  color:var(--accent);
  font-family:var(--font-mono);
}
@media(max-width:600px){
  .spec-grid{grid-template-columns:1fr}
  .spec-cell{padding:16px 20px}
}

/* ===== Expanded Feature Deep-Dive ===== */
.feature-dive{
  margin-top:16px;
  padding-top:16px;
  border-top:1px solid var(--border);
}
.feature-dive-list{
  display:flex;
  flex-direction:column;
  gap:10px;
  margin-top:12px;
}
.feature-dive-item{
  display:flex;
  gap:12px;
  align-items:flex-start;
}
.feature-dive-icon{
  flex-shrink:0;
  width:22px;
  height:22px;
  margin-top:1px;
  color:var(--accent);
}
.feature-dive-item span{
  font-size:15px;
  font-weight:510;
  letter-spacing:0.015em;
  color:var(--muted);
  line-height:1.6;
}
.feature-dive-item strong{color:rgba(255,255,255,0.85)}

/* ===== Legal Pages ===== */
.legal-page{
  padding:120px 32px 80px;
  max-width:800px;
  margin:0 auto;
  min-height:100vh;
}
.legal-page h1{
  font-family:var(--font-display);
  font-size:clamp(32px,4vw,48px);
  font-weight:500;
  letter-spacing:-0.02em;
  color:#fff;
  margin-bottom:8px;
}
.legal-page .meta{
  font-size:13px;
  color:var(--muted);
  font-family:var(--font-mono);
  letter-spacing:0.04em;
  margin-bottom:48px;
}
.legal-page h2{
  font-family:var(--font-display);
  font-size:clamp(20px,2vw,26px);
  font-weight:500;
  letter-spacing:-0.01em;
  color:#fff;
  margin:40px 0 16px;
}
.legal-page h3{
  font-size:17px;
  font-weight:600;
  color:#fff;
  margin:28px 0 12px;
  letter-spacing:0.01em;
}
.legal-page p{
  font-size:15px;
  line-height:1.7;
  color:var(--muted);
  margin-bottom:16px;
}
.legal-page ul{
  list-style:none;
  padding:0;
  margin:0 0 24px;
}
.legal-page ul li{
  padding:6px 0 6px 20px;
  position:relative;
  font-size:15px;
  line-height:1.6;
  color:var(--muted);
}
.legal-page ul li::before{
  content:'';
  position:absolute;
  left:0;
  top:14px;
  width:5px;
  height:5px;
  border-radius:50%;
  background:var(--accent);
  opacity:0.5;
}
.legal-page a{color:var(--accent);text-decoration:underline}
.legal-page a:hover{opacity:0.8}
.legal-back{
  display:inline-flex;
  align-items:center;
  gap:8px;
  margin-bottom:32px;
  font-size:14px;
  color:var(--muted);
  transition:color .2s;
}
.legal-back:hover{color:var(--accent)}

/* ============================================================
   No-JS Fallbacks
   The site works without JavaScript. These styles ensure
   navigation, FAQ, and content display when JS is off.
   ============================================================ */

/* ---- Hamburger checkbox toggle ---- */
.nav-toggle-cb {
  position: fixed; top: 0; left: 0;
  width: 0; height: 0;
  opacity: 0; pointer-events: none;
}
/* Show overlay when checkbox is checked */
.nav-toggle-cb:checked ~ .nav-overlay {
  display: flex !important;
}
/* Animate hamburger to X when checked */
.nav-toggle-cb:checked ~ #nav .nav-toggle span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}
.nav-toggle-cb:checked ~ #nav .nav-toggle span:nth-child(2) {
  opacity: 0;
}
.nav-toggle-cb:checked ~ #nav .nav-toggle span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}
/* Lock body scroll when overlay open (modern browsers with :has support) */
@supports selector(:has(*)) {
  body:has(.nav-toggle-cb:checked) { overflow: hidden; }
}

/* ---- Nav-dropdown: hover always works; data-open for JS enhancement ---- */
.nav-dropdown[data-open="true"] .nav-dropdown-menu,
.nav-dropdown:hover .nav-dropdown-menu {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

/* ---- FAQ with <details>/<summary> (no-JS accordion) ---- */
/* Rotate chevron on open */
details.faq-item-new[open] .faq-chevron-icon,
details.faq-item[open] .faq-chevron {
  transform: rotate(180deg);
  color: var(--accent);
}
/* Show answer on open (native details handles the show/hide, this just ensures styling) */
details.faq-item-new[open] .faq-answer-new,
details.faq-item[open] .faq-answer {
  max-height: 500px;
  opacity: 1;
}
/* Remove <summary> default marker */
summary.faq-row,
summary.faq-row-new {
  list-style: none;
  cursor: pointer;
}
summary.faq-row::-webkit-details-marker,
summary.faq-row-new::-webkit-details-marker {
  display: none;
}

/* ---- Feature cards: visible by default (no-JS) ---- */
.feature-card {
  opacity: 1;
  transform: translateX(0);
}
/* JS enhancement: start hidden and reveal via IntersectionObserver */
.feature-card.js-start-hidden {
  opacity: 0;
  transform: translateX(64px);
}
.feature-card.js-start-hidden.revealed {
  opacity: 1;
  transform: translateX(0);
}

/* ---- Testimonials: show all stacked when no JS ---- */
.testimonials-track {
  flex-wrap: wrap;
  gap: 32px;
}
.testimonial-item {
  flex: 0 0 100%;
}
/* Hide carousel controls when JS disabled (all testimonials visible) */
.carousel-controls {
  display: none;
}
/* Show carousel controls when JS carousel mode is active */
.testimonials-track.js-carousel-mode ~ .carousel-controls {
  display: flex;
}
/* JS enhancement: revert to single-row carousel */
.testimonials-track.js-carousel-mode {
  flex-wrap: nowrap;
  gap: 0;
}
.testimonials-track.js-carousel-mode .testimonial-item {
  flex: 0 0 100%;
}

/* ---- Testimonial star ratings ---- */
.testimonial-stars {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-top: 10px;
}
.testimonial-rating {
  font-family: var(--font-mono);
  font-size: 14px;
  font-weight: 550;
  color: var(--accent);
  letter-spacing: -0.01em;
}
.stars-outer {
  position: relative;
  display: inline-block;
  font-size: 16px;
  letter-spacing: 4px;
  line-height: 1;
  color: #333;
}
.stars-outer::before {
  content: "★★★★★";
}
.stars-inner {
  position: absolute;
  top: 0;
  left: 0;
  white-space: nowrap;
  overflow: hidden;
  height: 100%;
  color: #f59e0b;
}
.stars-inner::before {
  content: "★★★★★";
}

/* ---- Device panels: show all when no JS ---- */
.device-panel {
  display: block !important;
  opacity: 1 !important;
}
/* JS enhancement: JS hides inactive panels */
.device-panel.js-tab-mode.active {
  display: block !important;
}
.device-panel.js-tab-mode:not(.active) {
  display: none !important;
}
/* All method content visible at once */
[data-method-content] {
  display: block !important;
}
/* JS enhancement: JS hides inactive methods */
[data-method-content].js-method-mode {
  display: block !important;
}
[data-method-content].js-method-mode[style*="display:none"],
[data-method-content].js-method-mode[style*="display: none"] {
  display: none !important;
}