/* ==========================================================================
   HieuDev — CODE THUÊ ĐỒ ÁN
   Design tokens
   ========================================================================== */
:root{
  --bg-deep:#0a0d14;
  --bg-surface:#10141f;
  --bg-surface-2:#151b2b;
  --bg-surface-3:#1b2236;
  --border-subtle:rgba(255,255,255,.08);
  --border-strong:rgba(255,255,255,.16);

  --text-primary:#e9ecf5;
  --text-muted:#8992ac;
  --text-faint:#5c6480;

  --accent-violet:#7c5cfc;
  --accent-violet-2:#5a3ff0;
  --accent-teal:#34d1bf;
  --accent-amber:#ffb454;
  --accent-pink:#ff6b9d;

  --gradient-primary:linear-gradient(135deg,var(--accent-violet) 0%,var(--accent-teal) 100%);
  --gradient-warm:linear-gradient(135deg,var(--accent-amber) 0%,var(--accent-pink) 100%);
  --gradient-radial:radial-gradient(circle at 30% 20%,rgba(124,92,252,.35),transparent 60%);

  --font-display:'Space Grotesk',sans-serif;
  --font-body:'Inter',sans-serif;
  --font-mono:'JetBrains Mono',monospace;

  --shadow-glow:0 0 0 1px rgba(255,255,255,.04),0 20px 60px -20px rgba(124,92,252,.45);
  --radius-lg:22px;
  --radius-md:16px;
  --radius-sm:10px;

  --header-h:76px;
  --ease:cubic-bezier(.16,1,.3,1);
}

*{box-sizing:border-box;}
html{scroll-behavior:smooth;overflow-x:hidden;max-width:100%;}
@media (prefers-reduced-motion: reduce){
  html{scroll-behavior:auto;}
  *{animation-duration:.001ms !important;animation-iteration-count:1 !important;transition-duration:.001ms !important;scroll-behavior:auto !important;}
}

body{
  background:var(--bg-deep);
  color:var(--text-primary);
  font-family:var(--font-body);
  line-height:1.6;
  overflow-x:hidden;
  -webkit-font-smoothing:antialiased;
}

::selection{background:var(--accent-violet);color:#fff;}

a{color:inherit;text-decoration:none;}
h1,h2,h3,h4{font-family:var(--font-display);color:#fff;margin:0;letter-spacing:-.01em;}
p{color:var(--text-muted);margin:0;}

.container-xl{max-width:1200px;}

.grad-text{
  background:var(--gradient-primary);
  -webkit-background-clip:text;
  background-clip:text;
  color:transparent;
}

/* Focus visibility for accessibility */
a:focus-visible,button:focus-visible,input:focus-visible,textarea:focus-visible,select:focus-visible{
  outline:2px solid var(--accent-teal);
  outline-offset:3px;
  border-radius:6px;
}

/* ==========================================================================
   BACKGROUND FX
   ========================================================================== */
.bg-fx{position:fixed;inset:0;z-index:0;pointer-events:none;overflow:hidden;}
.bg-fx__grid{
  position:absolute;inset:-1px;
  background-image:
    linear-gradient(rgba(255,255,255,.035) 1px,transparent 1px),
    linear-gradient(90deg,rgba(255,255,255,.035) 1px,transparent 1px);
  background-size:44px 44px;
  mask-image:radial-gradient(ellipse 80% 60% at 50% 0%,#000 40%,transparent 90%);
}
.bg-fx__glow{position:absolute;border-radius:50%;filter:blur(90px);opacity:.35;}
.bg-fx__glow--1{
  width:600px;height:600px;top:-200px;left:-100px;
  background:radial-gradient(circle,var(--accent-violet),transparent 70%);
  animation:drift1 22s ease-in-out infinite;
}
.bg-fx__glow--2{
  width:520px;height:520px;top:20%;right:-160px;
  background:radial-gradient(circle,var(--accent-teal),transparent 70%);
  animation:drift2 26s ease-in-out infinite;
}
@keyframes drift1{0%,100%{transform:translate(0,0);}50%{transform:translate(60px,80px);}}
@keyframes drift2{0%,100%{transform:translate(0,0);}50%{transform:translate(-50px,-60px);}}

main,footer,header{position:relative;z-index:1;}

/* ==========================================================================
   HEADER / NAV (Bootstrap navbar)
   ========================================================================== */
.site-navbar{
  min-height:var(--header-h);
  padding-top:10px;padding-bottom:10px;
  background:rgba(10,13,20,.5);
  backdrop-filter:blur(16px) saturate(140%);
  -webkit-backdrop-filter:blur(16px) saturate(140%);
  border-bottom:1px solid transparent;
  transition:background .4s var(--ease),border-color .4s var(--ease),padding .3s var(--ease);
}
.site-navbar.is-scrolled{
  background:rgba(10,13,20,.9);
  border-bottom-color:var(--border-subtle);
  padding-top:6px;padding-bottom:6px;
}

.brand{display:inline-flex;align-items:center;gap:8px;font-family:var(--font-mono);font-weight:600;font-size:1.15rem;}
.brand__bracket{color:var(--accent-teal);}
.brand__text{color:#fff;}
.brand__dot{color:var(--accent-amber);}

.navbar-toggler{
  border:1px solid var(--border-subtle);border-radius:10px;padding:7px 10px;
  background:var(--bg-surface);
}
.navbar-toggler:focus{box-shadow:0 0 0 3px rgba(124,92,252,.35);}
.navbar-toggler-icon{
  width:1.2em;height:1.2em;
  background-image:url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 30 30'%3e%3cpath stroke='rgba(255,255,255,0.85)' stroke-linecap='round' stroke-miterlimit='10' stroke-width='2' d='M4 7h22M4 15h22M4 23h22'/%3e%3c/svg%3e");
}

.nav-tags{
  list-style:none;display:flex;gap:6px;flex-wrap:wrap;
  font-family:var(--font-mono);
}
.nav-tag{
  position:relative;padding:8px 14px;border-radius:999px;
  font-size:.88rem;color:var(--text-muted);
  transition:color .25s ease;
}
.nav-tag::before{
  content:"";position:absolute;inset:0;border-radius:999px;
  background:var(--gradient-primary);opacity:0;transition:opacity .25s ease;z-index:-1;
}
.nav-tag:hover{color:#fff;}
.nav-tag.is-active{color:#fff;}
.nav-tag.is-active::before{opacity:.16;}

.btn-nav-cta{
  font-family:var(--font-body);font-weight:600;font-size:.9rem;
  color:#0a0d14 !important;background:var(--gradient-primary);
  padding:10px 18px;border-radius:999px;display:inline-flex;align-items:center;gap:6px;
  transition:transform .25s var(--ease),box-shadow .25s var(--ease);
  width:fit-content;
}
.btn-nav-cta:hover{transform:translateY(-2px);box-shadow:0 10px 30px -8px rgba(124,92,252,.6);}

@media (max-width:991.98px){
  .navbar-collapse{
    margin-top:14px;padding:16px;border-radius:var(--radius-md);
    background:rgba(13,17,27,.98);border:1px solid var(--border-subtle);
  }
  .nav-tag{display:block;padding:12px 14px;}
  .btn-nav-cta{width:100%;justify-content:center;margin-top:6px;}
}

/* ==========================================================================
   BUTTONS (shared)
   ========================================================================== */
.btn{border-radius:999px;font-weight:600;padding:13px 26px;border:none;font-size:.95rem;}
.btn-primary-grad{
  background:var(--gradient-primary);color:#080a10;
  display:inline-flex;align-items:center;gap:8px;justify-content:center;
  transition:transform .25s var(--ease),box-shadow .25s var(--ease),filter .25s ease;
}
.btn-primary-grad:hover{transform:translateY(-3px);box-shadow:0 16px 40px -12px rgba(124,92,252,.55);filter:brightness(1.05);color:#080a10;}
.btn-outline-ghost{
  border:1px solid var(--border-strong);color:#fff;background:rgba(255,255,255,.02);
  display:inline-flex;align-items:center;gap:8px;justify-content:center;
  transition:background .25s ease,border-color .25s ease,transform .25s var(--ease);
}
.btn-outline-ghost:hover{background:rgba(255,255,255,.08);border-color:rgba(255,255,255,.35);color:#fff;transform:translateY(-3px);}

/* ==========================================================================
   REVEAL ANIMATION (scroll)
   ========================================================================== */
.reveal-up{
  opacity:0;transform:translateY(28px);
  transition:opacity .8s var(--ease),transform .8s var(--ease);
  transition-delay:var(--d,0s);
}
.reveal-up.is-visible{opacity:1;transform:translateY(0);}

/* ==========================================================================
   HERO
   ========================================================================== */
.hero{
  position:relative;padding:calc(var(--header-h) + 64px) 0 90px;
  min-height:100vh;display:flex;align-items:center;
}
.eyebrow{
  display:inline-flex;align-items:center;gap:9px;
  font-family:var(--font-mono);font-size:.82rem;color:var(--accent-teal);
  background:rgba(52,209,191,.08);border:1px solid rgba(52,209,191,.25);
  padding:7px 14px;border-radius:999px;margin-bottom:22px;
}
.eyebrow__ping{width:7px;height:7px;border-radius:50%;background:var(--accent-teal);position:relative;}
.eyebrow__ping::after{
  content:"";position:absolute;inset:-4px;border-radius:50%;border:2px solid var(--accent-teal);
  animation:ping 1.8s ease-out infinite;
}
@keyframes ping{0%{transform:scale(.6);opacity:1;}100%{transform:scale(1.8);opacity:0;}}

.hero__title{font-size:clamp(2.1rem,4.4vw,3.4rem);line-height:1.15;margin-bottom:22px;font-weight:700;}
.hero__desc{max-width:540px;font-size:1.05rem;margin-bottom:32px;}
.hero__actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:48px;}

.hero__stats{
  display:grid;grid-template-columns:repeat(4,auto);gap:14px 28px;
  border-top:1px solid var(--border-subtle);padding-top:26px;
}
.hero-stat{display:flex;flex-direction:column;font-family:var(--font-mono);min-width:0;}
.hero-stat__value{display:inline-flex;align-items:baseline;white-space:nowrap;line-height:1;}
.hero-stat__num{font-size:1.7rem;font-weight:700;color:#fff;font-family:var(--font-display);}
.hero-stat__value .grad-text{font-size:1.3rem;font-weight:700;font-family:var(--font-display);}
.hero-stat__label{font-size:.76rem;color:var(--text-faint);margin-top:4px;white-space:nowrap;}

@media (max-width:575.98px){
  .hero__stats{grid-template-columns:repeat(2,1fr);gap:20px 16px;}
  .hero-stat__label{white-space:normal;}
}

/* IDE mock */
.ide{
  background:var(--bg-surface);border:1px solid var(--border-subtle);
  border-radius:var(--radius-lg);overflow:hidden;box-shadow:var(--shadow-glow);
  transform:perspective(1000px) rotateY(-4deg) rotateX(2deg);
  transition:transform .6s var(--ease);
}
.ide:hover{transform:perspective(1000px) rotateY(0) rotateX(0);}
.ide__titlebar{
  display:flex;align-items:center;gap:16px;padding:12px 16px;
  background:var(--bg-surface-2);border-bottom:1px solid var(--border-subtle);
}
.ide__dots{display:flex;gap:7px;}
.ide__dots span{width:11px;height:11px;border-radius:50%;background:#3a4155;}
.ide__dots span:nth-child(1){background:#ff5f56;}
.ide__dots span:nth-child(2){background:#ffbd2e;}
.ide__dots span:nth-child(3){background:#27c93f;}
.ide__tabs{display:flex;gap:4px;font-family:var(--font-mono);font-size:.78rem;}
.ide__tab{padding:6px 12px;border-radius:8px 8px 0 0;color:var(--text-faint);display:flex;align-items:center;gap:6px;}
.ide__tab.is-active{background:var(--bg-deep);color:var(--text-primary);}

.ide__body{display:flex;padding:20px 0;min-height:260px;}
.ide__gutter{
  display:flex;flex-direction:column;gap:6px;padding:0 14px;
  font-family:var(--font-mono);font-size:.82rem;color:var(--text-faint);
  border-right:1px solid var(--border-subtle);text-align:right;
}
.ide__code{
  margin:0;padding:0 20px;
  font-family:var(--font-mono);
  font-size:.86rem;
  line-height:1.7;
  color:var(--text-primary);white-space:pre-wrap;flex:1;
}
.ide__cursor{display:inline-block;width:7px;height:16px;background:var(--accent-teal);vertical-align:middle;animation:blink 1s step-end infinite;}
@keyframes blink{50%{opacity:0;}}

.ide__statusbar{
  display:flex;justify-content:space-between;padding:9px 16px;
  background:var(--bg-surface-2);border-top:1px solid var(--border-subtle);
  font-family:var(--font-mono);font-size:.72rem;color:var(--text-faint);
}
.ide__statusbar i{color:var(--accent-teal);margin-right:5px;}

/* syntax highlight helper classes injected by JS */
.tok-kw{color:var(--accent-pink);}
.tok-type{color:var(--accent-teal);}
.tok-str{color:var(--accent-amber);}
.tok-com{color:var(--text-faint);font-style:italic;}
.tok-fn{color:#8fb8ff;}

.scroll-hint{
  position:absolute;bottom:26px;left:50%;transform:translateX(-50%);
  display:flex;flex-direction:column;align-items:center;gap:8px;
}
.scroll-hint span{
  width:22px;height:36px;border:2px solid var(--border-strong);border-radius:12px;position:relative;
}
.scroll-hint span::after{
  content:"";position:absolute;top:6px;left:50%;transform:translateX(-50%);
  width:4px;height:8px;border-radius:2px;background:var(--accent-teal);
  animation:scrollDot 1.6s ease-in-out infinite;
}
@keyframes scrollDot{0%{opacity:1;top:6px;}70%{opacity:0;top:18px;}100%{opacity:0;top:6px;}}
.scroll-hint p{font-family:var(--font-mono);font-size:.72rem;color:var(--text-faint);}

@media (max-width:991.98px){
  .ide{transform:none;}
  .hero{text-align:left;padding-top:calc(var(--header-h) + 40px);}
}

/* ==========================================================================
   SECTION GENERIC
   ========================================================================== */
.section{padding:110px 0;}
.section--alt{background:linear-gradient(180deg,transparent,rgba(255,255,255,.015) 15%,rgba(255,255,255,.015) 85%,transparent);}
.section-head{max-width:640px;margin-bottom:56px;}
.section-tag{
  font-family:var(--font-mono);color:var(--accent-teal);font-size:.85rem;
  margin-bottom:12px;letter-spacing:.02em;
}
.section-title{font-size:clamp(1.7rem,3vw,2.4rem);margin-bottom:16px;}
.section-title--sm{font-size:clamp(1.5rem,2.4vw,1.9rem);}
.section-desc{font-size:1.02rem;}

/* ==========================================================================
   TECH GRID
   ========================================================================== */
.tech-grid{
  display:grid;grid-template-columns:repeat(5,1fr);gap:18px;margin-bottom:56px;
}
@media (max-width:1199.98px){.tech-grid{grid-template-columns:repeat(3,1fr);}}
@media (max-width:767.98px){.tech-grid{grid-template-columns:repeat(2,1fr);}}
@media (max-width:479.98px){.tech-grid{grid-template-columns:1fr;}}

.tech-card{
  background:var(--bg-surface);border:1px solid var(--border-subtle);
  border-radius:var(--radius-md);padding:26px 20px;
  transition:transform .35s var(--ease),border-color .35s ease,background .35s ease;
}
.tech-card:hover{
  transform:translateY(-6px);
  border-color:rgba(124,92,252,.4);
  background:var(--bg-surface-2);
}
.tech-card--more{background:linear-gradient(160deg,rgba(124,92,252,.09),rgba(52,209,191,.06));}
.tech-card__icon{
  width:52px;height:52px;border-radius:14px;display:flex;align-items:center;justify-content:center;
  font-size:1.5rem;margin-bottom:16px;color:#fff;
  background:linear-gradient(135deg,var(--c1),var(--c2));
}
.tech-card h3{font-size:1.08rem;margin-bottom:8px;}
.tech-card p{font-size:.88rem;}

.exp-strip{
  display:grid;grid-template-columns:repeat(4,1fr);gap:1px;
  background:var(--border-subtle);border:1px solid var(--border-subtle);border-radius:var(--radius-md);overflow:hidden;
}
@media (max-width:991.98px){.exp-strip{grid-template-columns:repeat(2,1fr);}}
@media (max-width:575.98px){.exp-strip{grid-template-columns:1fr;}}
.exp-item{background:var(--bg-surface);padding:28px 24px;display:flex;gap:16px;}
.exp-item i{font-size:1.4rem;color:var(--accent-amber);flex-shrink:0;margin-top:3px;}
.exp-item h4{font-size:1rem;margin-bottom:6px;color:#fff;font-family:var(--font-body);font-weight:700;}
.exp-item p{font-size:.88rem;}

/* ==========================================================================
   DEMO SECTION
   ========================================================================== */
.demo-toolbar{
  display:flex;flex-wrap:wrap;gap:16px;justify-content:space-between;align-items:center;margin-bottom:34px;
}
.demo-search{
  position:relative;flex:1;min-width:260px;max-width:440px;
}
.demo-search i{position:absolute;left:16px;top:50%;transform:translateY(-50%);color:var(--text-faint);}
.demo-search input{
  width:100%;padding:12px 16px 12px 42px;border-radius:999px;
  background:var(--bg-surface);border:1px solid var(--border-subtle);color:#fff;font-size:.92rem;
  transition:border-color .25s ease,box-shadow .25s ease;
}
.demo-search input::placeholder{color:var(--text-faint);}
.demo-search input:focus{outline:none;border-color:var(--accent-violet);box-shadow:0 0 0 4px rgba(124,92,252,.15);}

.demo-filters{display:flex;flex-wrap:wrap;gap:8px;}
.filter-chip{
  font-family:var(--font-mono);font-size:.8rem;padding:8px 15px;border-radius:999px;
  background:var(--bg-surface);border:1px solid var(--border-subtle);color:var(--text-muted);
  cursor:pointer;transition:all .25s ease;
}
.filter-chip:hover{color:#fff;border-color:var(--border-strong);}
.filter-chip.is-active{background:var(--gradient-primary);color:#080a10;border-color:transparent;}

.demo-grid{
  display:grid;grid-template-columns:repeat(3,1fr);gap:24px;min-height:200px;
}
@media (max-width:991.98px){.demo-grid{grid-template-columns:repeat(2,1fr);}}
@media (max-width:575.98px){.demo-grid{grid-template-columns:1fr;}}

.demo-card{
  background:var(--bg-surface);border:1px solid var(--border-subtle);border-radius:var(--radius-md);
  overflow:hidden;transition:transform .35s var(--ease),border-color .35s ease,box-shadow .35s ease;
  opacity:0;animation:cardIn .5s var(--ease) forwards;
}
@keyframes cardIn{from{opacity:0;transform:translateY(16px);}to{opacity:1;transform:translateY(0);}}
.demo-card:hover{transform:translateY(-6px);border-color:rgba(52,209,191,.4);box-shadow:0 20px 45px -18px rgba(52,209,191,.35);}

.demo-card__thumb{position:relative;aspect-ratio:16/9;overflow:hidden;background:var(--bg-surface-2);}
.demo-card__thumb img{width:100%;height:100%;object-fit:cover;transition:transform .5s var(--ease);}
.demo-card:hover .demo-card__thumb img{transform:scale(1.08);}
.demo-card__play{
  position:absolute;inset:0;display:flex;align-items:center;justify-content:center;
  background:linear-gradient(180deg,rgba(10,13,20,0),rgba(10,13,20,.55));
}
.demo-card__play i{
  width:56px;height:56px;border-radius:50%;background:rgba(255,255,255,.14);
  backdrop-filter:blur(6px);display:flex;align-items:center;justify-content:center;
  color:#fff;font-size:1.4rem;transition:transform .3s var(--ease),background .3s ease;
}
.demo-card:hover .demo-card__play i{transform:scale(1.12);background:var(--gradient-primary);color:#080a10;}

.demo-card__body{padding:18px 20px 22px;}
.demo-card__tag{
  display:inline-block;font-family:var(--font-mono);font-size:.72rem;color:var(--accent-teal);
  background:rgba(52,209,191,.1);padding:4px 10px;border-radius:999px;margin-bottom:12px;
}
.demo-card__body h3{font-size:1.02rem;margin-bottom:10px;line-height:1.4;}
.demo-card__techs{display:flex;flex-wrap:wrap;gap:6px;margin-bottom:12px;}
.tech-pill{
  font-family:var(--font-mono);font-size:.7rem;color:var(--text-muted);
  background:var(--bg-surface-3);border:1px solid var(--border-subtle);
  padding:3px 9px;border-radius:999px;white-space:nowrap;
}
.demo-card__meta{
  display:flex;align-items:center;gap:6px;font-size:.78rem;color:var(--text-faint);
}
.demo-card__meta i{color:var(--accent-amber);}

.demo-empty{text-align:center;padding:60px 0;color:var(--text-faint);}
.demo-empty i{font-size:2.2rem;display:block;margin-bottom:12px;}

.demo-pagination{display:flex;justify-content:center;gap:8px;margin-top:40px;flex-wrap:wrap;}
.demo-pagination button{
  min-width:40px;height:40px;padding:0 8px;border-radius:10px;
  background:var(--bg-surface);border:1px solid var(--border-subtle);color:var(--text-muted);
  font-family:var(--font-mono);font-size:.85rem;cursor:pointer;transition:all .25s ease;
}
.demo-pagination button:hover:not(:disabled){color:#fff;border-color:var(--border-strong);}
.demo-pagination button.is-active{background:var(--gradient-primary);color:#080a10;border-color:transparent;font-weight:700;}
.demo-pagination button:disabled{opacity:.35;cursor:not-allowed;}

/* ==========================================================================
   PRICING
   ========================================================================== */
.pricing-grid{
  display:grid;grid-template-columns:repeat(2,1fr);gap:24px;margin-bottom:36px;
}
@media (max-width:850px){.pricing-grid{grid-template-columns:1fr;}}

.price-card{
  position:relative;background:var(--bg-surface);border:1px solid var(--border-subtle);
  border-radius:var(--radius-lg);padding:34px 30px;display:flex;flex-direction:column;
  transition:transform .35s var(--ease),border-color .35s ease;
}
.price-card:hover{transform:translateY(-6px);border-color:rgba(124,92,252,.35);}
.price-card--highlight{
  background:linear-gradient(165deg,rgba(124,92,252,.1),rgba(52,209,191,.06)),var(--bg-surface);
  border-color:rgba(52,209,191,.35);
  box-shadow:0 20px 50px -22px rgba(52,209,191,.4);
}
.price-card__ribbon{
  position:absolute;top:0;right:28px;transform:translateY(-50%);
  background:var(--gradient-warm);color:#1a0a05;font-family:var(--font-mono);font-weight:700;
  font-size:.72rem;padding:6px 14px;border-radius:999px;box-shadow:0 8px 20px -8px rgba(255,180,84,.6);
}
.price-card__badge{
  display:inline-block;font-family:var(--font-mono);font-size:.74rem;color:var(--accent-teal);
  background:rgba(52,209,191,.1);padding:5px 12px;border-radius:999px;margin-bottom:16px;
}
.price-card__head h3{font-size:1.35rem;margin-bottom:10px;}
.price-card__price{font-family:var(--font-display);font-size:1.6rem;font-weight:700;color:#fff;margin-bottom:24px;}
.price-card__price span{display:block;font-family:var(--font-body);font-size:.85rem;font-weight:400;color:var(--text-muted);margin-top:4px;}

.price-card__list{list-style:none;padding:0;margin:0 0 28px;display:flex;flex-direction:column;gap:13px;flex:1;}
.price-card__list li{display:flex;align-items:flex-start;gap:10px;font-size:.9rem;color:var(--text-muted);}
.price-card__list i{color:var(--accent-teal);margin-top:3px;flex-shrink:0;}

.deploy-strip{
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:20px;
  background:var(--bg-surface-2);border:1px solid var(--border-subtle);border-radius:var(--radius-md);
  padding:26px 30px;
}
.deploy-strip__label{display:flex;align-items:flex-start;gap:14px;max-width:420px;}
.deploy-strip__label i{font-size:1.4rem;color:var(--accent-violet);margin-top:3px;flex-shrink:0;}
.deploy-strip__label h4{font-size:.98rem;color:#fff;font-family:var(--font-body);font-weight:700;margin-bottom:4px;}
.deploy-strip__label p{font-size:.85rem;}
.deploy-strip__badges{display:flex;flex-wrap:wrap;gap:10px;}
.deploy-strip__badges span{
  display:inline-flex;align-items:center;gap:7px;font-family:var(--font-mono);font-size:.8rem;
  color:var(--text-primary);background:var(--bg-surface-3);border:1px solid var(--border-subtle);
  padding:8px 14px;border-radius:999px;
}
.deploy-strip__badges i{color:var(--accent-amber);}

/* ==========================================================================
   CONTACT
   ========================================================================== */
.contact-panel{
  background:var(--bg-surface);border:1px solid var(--border-subtle);border-radius:var(--radius-lg);
  overflow:hidden;box-shadow:var(--shadow-glow);
}
.contact-panel__side{
  padding:52px 44px;background:var(--gradient-radial),var(--bg-surface-2);
  border-right:1px solid var(--border-subtle);
}
.contact-panel__form{padding:52px 44px;}
@media (max-width:991.98px){
  .contact-panel__side,.contact-panel__form{padding:36px 26px;border-right:none;}
}

.contact-list{list-style:none;padding:0;margin:32px 0 0;display:flex;flex-direction:column;gap:18px;}
.contact-list li{display:flex;align-items:center;gap:14px;}
.contact-list i{
  width:42px;height:42px;border-radius:12px;display:flex;align-items:center;justify-content:center;
  background:rgba(124,92,252,.12);color:var(--accent-violet);font-size:1.15rem;flex-shrink:0;
}
.contact-list span{display:block;font-size:.78rem;color:var(--text-faint);}
.contact-list strong{color:#fff;font-family:var(--font-mono);font-weight:500;font-size:.92rem;}

.form-label{font-size:.85rem;color:var(--text-muted);margin-bottom:6px;}
.form-control,.form-select{
  background:var(--bg-deep);border:1px solid var(--border-subtle);color:#fff;
  border-radius:var(--radius-sm);padding:12px 14px;font-size:.92rem;
}
.form-control::placeholder{color:var(--text-faint);}
.form-control:focus,.form-select:focus{
  background:var(--bg-deep);color:#fff;border-color:var(--accent-violet);
  box-shadow:0 0 0 4px rgba(124,92,252,.15);
}
.form-select option{background:var(--bg-surface);}
.form-note{margin-top:14px;font-size:.85rem;color:var(--accent-teal);min-height:1.2em;}

/* ==========================================================================
   FOOTER
   ========================================================================== */
.site-footer{padding:56px 0 30px;border-top:1px solid var(--border-subtle);background:var(--bg-surface);}
.footer-top{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:24px;}
.footer-nav{list-style:none;display:flex;gap:20px;padding:0;margin:0;font-family:var(--font-mono);font-size:.85rem;}
.footer-nav a{color:var(--text-muted);transition:color .25s ease;}
.footer-nav a:hover{color:var(--accent-teal);}
.footer-social{display:flex;gap:10px;}
.footer-social a{
  width:38px;height:38px;border-radius:10px;border:1px solid var(--border-subtle);
  display:flex;align-items:center;justify-content:center;color:var(--text-muted);
  transition:all .25s ease;
}
.footer-social a:hover{color:#fff;border-color:transparent;background:var(--gradient-primary);}
.footer-divider{border-color:var(--border-subtle);margin:32px 0 22px;}
.footer-bottom{display:flex;flex-wrap:wrap;justify-content:space-between;gap:10px;font-size:.82rem;color:var(--text-faint);}
.footer-bottom__meta i{color:var(--accent-pink);}

/* ==========================================================================
   FLOATING CHAT WIDGET
   ========================================================================== */
.chat-widget{position:fixed;right:22px;bottom:22px;z-index:1100;display:flex;flex-direction:column;align-items:flex-end;gap:14px;}

.chat-widget__btn{
  position:relative;width:60px;height:60px;border-radius:50%;border:none;cursor:pointer;
  background:var(--gradient-primary);color:#080a10;font-size:1.4rem;
  display:flex;align-items:center;justify-content:center;
  box-shadow:0 14px 34px -10px rgba(124,92,252,.65);
  transition:transform .3s var(--ease);
}
.chat-widget__btn:hover{transform:scale(1.06);}
.chat-widget__btn .icon-close{position:absolute;opacity:0;transform:scale(.5) rotate(-45deg);transition:all .3s var(--ease);}
.chat-widget__btn .icon-chat{transition:all .3s var(--ease);}
.chat-widget.is-open .chat-widget__btn .icon-chat{opacity:0;transform:scale(.5) rotate(45deg);}
.chat-widget.is-open .chat-widget__btn .icon-close{opacity:1;transform:scale(1) rotate(0);}

.chat-widget__ring{
  position:absolute;inset:-6px;border-radius:50%;border:2px solid var(--accent-teal);
  animation:ringPulse 2.4s ease-out infinite;
}
@keyframes ringPulse{0%{transform:scale(.85);opacity:.8;}100%{transform:scale(1.35);opacity:0;}}

.chat-widget__panel{
  display:flex;flex-direction:column;gap:10px;
  transform-origin:bottom right;
  transform:scale(.85) translateY(12px);opacity:0;pointer-events:none;
  transition:transform .3s var(--ease),opacity .25s ease;
}
.chat-widget.is-open .chat-widget__panel{transform:scale(1) translateY(0);opacity:1;pointer-events:auto;}

.chat-option{
  display:flex;align-items:center;gap:10px;padding:12px 18px;border-radius:999px;
  background:var(--bg-surface);border:1px solid var(--border-subtle);color:#fff;
  font-size:.9rem;font-weight:600;white-space:nowrap;
  box-shadow:0 10px 30px -12px rgba(0,0,0,.6);
  transition:transform .25s var(--ease),border-color .25s ease;
}
.chat-option:hover{transform:translateX(-4px);color:#fff;}
.chat-option i{font-size:1.15rem;}
.chat-option--messenger i{color:#00b2ff;}
.chat-option--messenger:hover{border-color:#00b2ff;}
.chat-option--zalo i{color:#0068ff;}
.chat-option--zalo:hover{border-color:#0068ff;}

@media (max-width:575.98px){
  .chat-widget{right:16px;bottom:16px;}
  .chat-widget__btn{width:54px;height:54px;}
}

/* ==========================================================================
   BỔ SUNG CSS CHO KHU VỰC HIỂN THỊ DEMO (TÊN DỰ ÁN + TECH PILLS)
   ========================================================================== */
.demo-card__title {
  font-size: 1.125rem !important;
  font-weight: 600 !important;
  color: #ffffff !important;
  margin-top: 4px;
  margin-bottom: 12px !important;
  line-height: 1.4 !important;
  /* Giới hạn tên dự án tối đa 2 dòng, nếu dài quá tự động thêm dấu ... */
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  height: 3.15rem; /* Giữ khung card luôn đều nhau */
}

.demo-card__techs {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-bottom: 16px !important;
  min-height: 58px; /* Đảm bảo các card đều tăm tắp dù số lượng tech khác nhau */
  align-content: flex-start;
}

.tech-pill {
  font-family: var(--font-mono);
  font-size: 0.72rem !important;
  font-weight: 500;
  color: var(--text-primary) !important;
  background: var(--bg-surface-3) !important;
  border: 1px solid var(--border-subtle) !important;
  padding: 4px 10px !important;
  border-radius: 6px !important;
  transition: all 0.2s ease-in-out;
}

/* Hiệu ứng hover đổi màu nhẹ cho từng pill công nghệ */
.demo-card:hover .tech-pill {
  border-color: rgba(52, 209, 191, 0.25) !important;
  background: rgba(52, 209, 191, 0.05) !important;
  color: var(--accent-teal) !important;
}

/* Tối ưu responsive khoảng cách cho vùng Toolbar Demo */
@media (max-width: 767.98px) {
  .demo-toolbar {
    flex-direction: column;
    align-items: stretch !important;
    gap: 12px;
  }
  .demo-search {
    max-width: 100% !important;
  }
  .demo-card__title {
    height: auto; /* Trên mobile để tự co giãn tự nhiên */
    -webkit-line-clamp: unset;
    display: block;
  }
  .demo-card__techs {
    min-height: auto;
  }
}

/* ==========================================================================
   PROJECT DETAIL MODAL
   ========================================================================== */

/* Backdrop tối hơn cho hợp với theme */
.modal-backdrop.show{
  opacity:.75;
  background:var(--bg-deep);
}

/* Khung modal */
.project-modal{
  background:var(--bg-surface);
  border:1px solid var(--border-subtle);
  border-radius:var(--radius-lg);
  box-shadow:var(--shadow-glow);
  color:var(--text-primary);
}

/* Modal dialog: cho nó "nổi" nhẹ như các card khác */
#projectModal .modal-dialog{
  --bs-modal-width:760px;
}

/* Header */
.project-modal .modal-header{
  border-bottom:1px solid var(--border-subtle);
  padding:22px 26px;
  background:linear-gradient(180deg,rgba(124,92,252,.06),transparent);
}
.project-modal .modal-title{
  font-family:var(--font-display);
  font-size:1.3rem;
  font-weight:700;
  color:#fff;
  line-height:1.35;
  padding-right:16px;
}
.project-modal .btn-close{
  opacity:.7;
  filter:brightness(0) invert(1);
  transition:opacity .2s ease,transform .2s ease;
}
.project-modal .btn-close:hover{
  opacity:1;
  transform:rotate(90deg);
}
.project-modal .btn-close:focus{
  box-shadow:0 0 0 3px rgba(124,92,252,.35);
}

/* Body */
.project-modal .modal-body{
  padding:26px;
}

/* Video wrap (iframe YouTube) */
#projectModalVideoWrap{
  border-radius:var(--radius-md);
  overflow:hidden;
  border:1px solid var(--border-subtle);
  background:var(--bg-deep);
}
#projectModalVideoWrap iframe{
  border:0;
}

/* Khối công nghệ trong modal — dùng lại style tech-pill nhưng hơi to hơn cho dễ đọc */
#projectModalTechs{
  display:flex;
  flex-wrap:wrap;
  gap:8px;
}
#projectModalTechs .tech-pill{
  font-size:.78rem !important;
  padding:6px 13px !important;
}

/* Mô tả HTML từ TinyMCE — style lại các thẻ p/ul/table... cho khớp theme tối */
.project-modal__desc{
  font-size:.95rem;
  color:var(--text-muted);
  line-height:1.75;
  padding-top:6px;
  border-top:1px solid var(--border-subtle);
  margin-top:4px;
}
.project-modal__desc > *:first-child{margin-top:0;}
.project-modal__desc p{
  color:var(--text-muted);
  margin:0 0 14px;
}
.project-modal__desc strong,
.project-modal__desc b{
  color:#fff;
  font-weight:600;
}
.project-modal__desc em,
.project-modal__desc i{
  color:var(--text-primary);
}
.project-modal__desc a{
  color:var(--accent-teal);
  text-decoration:underline;
  text-underline-offset:2px;
}
.project-modal__desc a:hover{
  color:var(--accent-violet);
}
.project-modal__desc ul,
.project-modal__desc ol{
  margin:0 0 16px;
  padding-left:22px;
  color:var(--text-muted);
}
.project-modal__desc li{
  margin-bottom:6px;
}
.project-modal__desc li::marker{
  color:var(--accent-teal);
}
.project-modal__desc h1,
.project-modal__desc h2,
.project-modal__desc h3,
.project-modal__desc h4{
  color:#fff;
  font-size:1.05rem;
  margin:20px 0 10px;
}
.project-modal__desc code{
  font-family:var(--font-mono);
  background:var(--bg-surface-3);
  border:1px solid var(--border-subtle);
  color:var(--accent-amber);
  padding:2px 6px;
  border-radius:5px;
  font-size:.85em;
}
.project-modal__desc pre{
  background:var(--bg-deep);
  border:1px solid var(--border-subtle);
  border-radius:var(--radius-sm);
  padding:14px 16px;
  overflow-x:auto;
  margin:0 0 16px;
}
.project-modal__desc pre code{
  background:none;
  border:none;
  padding:0;
  color:var(--text-primary);
}
.project-modal__desc table{
  width:100%;
  border-collapse:collapse;
  margin:0 0 16px;
  font-size:.88rem;
}
.project-modal__desc th,
.project-modal__desc td{
  border:1px solid var(--border-subtle);
  padding:8px 12px;
  text-align:left;
}
.project-modal__desc th{
  background:var(--bg-surface-2);
  color:#fff;
  font-family:var(--font-mono);
  font-size:.8rem;
}
.project-modal__desc blockquote{
  border-left:3px solid var(--accent-violet);
  padding:8px 16px;
  margin:0 0 16px;
  background:rgba(124,92,252,.06);
  color:var(--text-primary);
  border-radius:0 var(--radius-sm) var(--radius-sm) 0;
}
.project-modal__desc img{
  max-width:100%;
  height:auto;
  border-radius:var(--radius-sm);
  border:1px solid var(--border-subtle);
}

/* Footer */
.project-modal .modal-footer{
  border-top:1px solid var(--border-subtle);
  padding:18px 26px;
  gap:10px;
}
.project-modal .modal-footer .btn-outline-ghost{
  font-size:.88rem;
  padding:10px 20px;
}
.project-modal .modal-footer .btn-outline-secondary{
  border:1px solid var(--border-subtle);
  color:var(--text-muted);
  background:transparent;
  font-size:.88rem;
  padding:10px 20px;
  border-radius:999px;
  transition:all .25s ease;
}
.project-modal .modal-footer .btn-outline-secondary:hover{
  color:#fff;
  border-color:var(--border-strong);
  background:rgba(255,255,255,.04);
}

/* Fade + scale nhẹ khi mở modal, đồng bộ với các animation khác trên site */
#projectModal.modal.fade .modal-dialog{
  transform:scale(.94) translateY(16px);
  transition:transform .35s var(--ease),opacity .3s ease;
}
#projectModal.modal.show .modal-dialog{
  transform:scale(1) translateY(0);
}

/* Responsive: mobile thu gọn padding */
@media (max-width:575.98px){
  .project-modal .modal-header,
  .project-modal .modal-body,
  .project-modal .modal-footer{
    padding-left:18px;
    padding-right:18px;
  }
  .project-modal .modal-title{
    font-size:1.1rem;
  }
}

@media (max-width:991.98px){
  .ide__code{
    min-height:320px; /* tùy chỉnh số này theo ý bạn, hiện tại đang không set nên co theo nội dung */
  }
}
/* ==========================================================================
   BỔ SUNG CHO TRANG DANH SÁCH ĐỒ ÁN (projects.php)
   Thêm đoạn này vào cuối file css/style.css
   ========================================================================== */