/* ==============================================
   PORTFOLIO — MAIN CSS  (Static Design + PHP)
   Black & White | Dark / Light Toggle
   ============================================== */

/* Monaspace Krypton */
@font-face { font-family: 'Monaspace Krypton'; src: url('https://cdn.jsdelivr.net/gh/githubnext/monaspace@v1.101.0/fonts/webfonts/MonaspaceKrypton-Regular.woff2') format('woff2'); font-weight: 400; font-display: swap; }
@font-face { font-family: 'Monaspace Krypton'; src: url('https://cdn.jsdelivr.net/gh/githubnext/monaspace@v1.101.0/fonts/webfonts/MonaspaceKrypton-Bold.woff2') format('woff2'); font-weight: 700; font-display: swap; }
@font-face { font-family: 'Monaspace Krypton'; src: url('https://cdn.jsdelivr.net/gh/githubnext/monaspace@v1.101.0/fonts/webfonts/MonaspaceKrypton-Light.woff2') format('woff2'); font-weight: 300; font-display: swap; }
@font-face { font-family: 'Monaspace Krypton'; src: url('https://cdn.jsdelivr.net/gh/githubnext/monaspace@v1.101.0/fonts/webfonts/MonaspaceKrypton-SemiBold.woff2') format('woff2'); font-weight: 600; font-display: swap; }

/* ── TOKENS ── */
:root {
  --bg:         #050507;
  --bg2:        #0b0b0f;
  --bg3:        #111116;
  --surface:    #17171e;
  --border:     #1d1d27;
  --border2:    #2a2a38;
  --text:       #e4e4f0;
  --text2:      #7a7a96;
  --text3:      #3d3d52;
  --accent:     #ffffff;
  --accent-dim: rgba(255,255,255,0.06);
  --accent-mid: rgba(255,255,255,0.12);
  --accent-uios:#ffffff;
  --green:      #00e87a;
  --mono:       'Monaspace Krypton', 'JetBrains Mono', 'Fira Code', monospace;
  --display:    'Monaspace Krypton', monospace;
  --ui:         'Monaspace Krypton', monospace;
  --ease:       cubic-bezier(0.16,1,0.3,1);
  --fast:       0.15s;
  --mid:        0.3s;
  --radius:     0px;
  --radius-lg:  2px;
  --radius-xl:  4px;
  --shadow:     0 2px 12px rgba(0,0,0,0.5);
  --shadow-lg:  0 8px 40px rgba(0,0,0,0.7);
}

[data-theme="light"] {
  --bg:         #f4f4ef;
  --bg2:        #e8e8e2;
  --bg3:        #dcdcd4;
  --surface:    #ffffff;
  --border:     #d0d0c6;
  --border2:    #b8b8ae;
  --text:       #080810;
  --text2:      #52525e;
  --text3:      #9a9a9e;
  --accent:     #080810;
  --accent-uios:#080810;
  --accent-dim: rgba(0,0,0,0.06);
  --accent-mid: rgba(0,0,0,0.10);
  --shadow:     0 2px 12px rgba(0,0,0,0.1);
  --shadow-lg:  0 8px 40px rgba(0,0,0,0.15);
}

/* ── RESET ── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: var(--mono);
  background: var(--bg); color: var(--text);
  line-height: 1.65; min-height: 100vh;
  display: flex; flex-direction: column;
  transition: background var(--mid), color var(--mid);
  overflow-x: hidden;
}

/* ── SCROLLBAR ── */
::-webkit-scrollbar { width: 5px; height: 5px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: var(--border2); border-radius: 3px; }

/* ── TYPE ── */
h1,h2,h3,h4 { font-family: var(--mono); line-height: 1.15; color: var(--text); }
h1 { font-size: clamp(2.2rem,7vw,5.5rem); font-weight: 800; letter-spacing: -0.03em; }
h2 { font-size: clamp(2rem,4.5vw,3.2rem); font-weight: 700; letter-spacing: -0.02em; }
h3 { font-size: 1.2rem; font-weight: 700; }
p  { color: var(--text2); line-height: 1.7; }
a  { color: var(--text); text-decoration: none; transition: color var(--fast); }
a:hover { color: var(--accent); }

/* ── LAYOUT ── */
main { flex: 1; padding-top: 58px; }
.container { max-width: 1160px; margin: 0 auto; padding: 0 2rem; }
@media (max-width: 640px) { .container { padding: 0 1.25rem; } }
.section { padding: 6rem 0; }

/* ── NAVBAR ── */
/* ── UIOS NAVBAR ── */
.navbar {
  position: fixed; top: 0; left: 0; right: 0; z-index: 1000;
  height: 58px; display: flex; align-items: center;
  padding: 0 2rem; gap: 1.5rem;
  background: rgba(8,8,8,0.93);
  border-bottom: 1px solid var(--border);
  backdrop-filter: blur(20px);
  transition: background var(--mid), border-color var(--mid);
}
[data-theme="light"] .navbar { background: rgba(247,247,245,0.94); }

/* hamburger LEFT — "☰ MENU" */
.nav-hamburger {
  display: flex; align-items: center; gap: 0.55rem;
  background: none; border: none; cursor: pointer; flex-shrink: 0;
}
.nav-hlines { display: flex; flex-direction: column; gap: 4px; }
.nav-hlines span { display: block; width: 18px; height: 1.5px; background: var(--text2); transition: background var(--fast); }
.nav-hamburger:hover .nav-hlines span { background: var(--text); }
.nav-menu-lbl {
  font-family: var(--mono);
  font-size: 0.72rem; font-weight: 700;
  letter-spacing: 0.18em; text-transform: uppercase;
  color: var(--text2); transition: color var(--fast);
}
.nav-hamburger:hover .nav-menu-lbl { color: var(--text); }

/* logo CENTER — absolute */
.nav-logo {
  position: absolute; left: 50%; transform: translateX(-50%);
  display: flex; align-items: center;
  color: var(--text); text-decoration: none;
}
.nav-logo img { height: 28px; width: auto; display: block; }
.nav-logo-txt {
  font-family: var(--mono);
  font-size: 1.1rem; letter-spacing: 0.08em; color: var(--text);
}

/* links RIGHT */
.nav-right { display: flex; align-items: center; gap: 0; margin-left: auto; }
.nav-links { display: flex; list-style: none; }
.nav-links a {
  padding: 0.35rem 0.88rem;
  font-family: var(--mono);
  font-size: 0.72rem; font-weight: 700;
  letter-spacing: 0.14em; text-transform: uppercase;
  color: var(--text2); position: relative; transition: color var(--fast);
}
.nav-links a::after {
  content: ''; position: absolute;
  bottom: -1px; left: 0.88rem; right: 0.88rem;
  height: 1px; background: var(--accent-uios, #ffffff);
  transform: scaleX(0); transition: transform 0.2s var(--ease);
  transform-origin: left;
}
.nav-links a:hover { color: var(--text); background: none; }
.nav-links a.active { color: var(--text); }
.nav-links a.active::after,
.nav-links a:hover::after { transform: scaleX(1); }

/* theme button */
.theme-btn {
  width: 32px; height: 32px; margin-left: 0.6rem;
  display: flex; align-items: center; justify-content: center;
  background: none; border: 1px solid var(--border2);
  border-radius: 0; color: var(--text2); cursor: pointer;
  transition: border-color var(--fast), color var(--fast);
}
.theme-btn:hover { border-color: var(--accent-uios, #ffffff); color: var(--accent-uios, #ffffff); background: none; }
.theme-btn svg { width: 13px; height: 13px; }
[data-theme="dark"]  .icon-sun  { display: block; }
[data-theme="dark"]  .icon-moon { display: none; }
[data-theme="light"] .icon-sun  { display: none; }
[data-theme="light"] .icon-moon { display: block; }

/* mobile nav drawer */
.mobile-nav {
  display: none; position: fixed; top: 58px; left: 0; right: 0;
  background: var(--bg2); border-bottom: 1px solid var(--border);
  padding: 1.25rem 2rem; flex-direction: column; gap: 0; z-index: 999;
  align-items: center;
}
.mobile-nav.open { display: flex; }
.mobile-nav a {
  padding: 0.65rem 2rem;
  font-family: var(--mono);
  font-size: 0.65rem; font-weight: 700;
  letter-spacing: 0.18em; text-transform: uppercase;
  color: var(--text2); text-align: center; width: 100%;
  position: relative; transition: color var(--fast);
}
.mobile-nav a::after {
  content: ''; position: absolute; bottom: 0; left: 25%; right: 25%;
  height: 1px; background: var(--accent);
  transform: scaleX(0); transition: transform 0.22s var(--ease); transform-origin: center;
}
.mobile-nav a:hover,
.mobile-nav a.active { color: var(--text); }
.mobile-nav a:hover::after,
.mobile-nav a.active::after { transform: scaleX(1); }
.mobile-nav-sep { height: 1px; background: var(--border); margin: 0.5rem 0; width: 80%; }
.mobile-nav-cta,
.mobile-cta {
  background: var(--accent) !important;
  color: #000 !important; font-weight: 700 !important;
  text-align: center !important; padding: 0.65rem 2rem !important; width: 100%;
}
.hamburger { display: none !important; }

/* ── BUTTONS ── */
.btn {
  display: inline-flex; align-items: center; gap: 0.5rem;
  padding: 0.65rem 1.4rem; border-radius: var(--radius);
  font-family: var(--mono); font-size: 0.82rem; font-weight: 600;
  cursor: pointer; transition: all var(--fast);
  border: 1px solid transparent; text-decoration: none; white-space: nowrap;
}
.btn-primary { background: var(--accent); color: var(--bg); border-color: var(--accent); }
.btn-primary:hover { opacity: 0.85; color: var(--bg); }
.btn-outline { background: transparent; color: var(--text); border-color: var(--border2); }
.btn-outline:hover { background: var(--accent-dim); border-color: var(--text3); color: var(--text); }
.btn-danger  { background: transparent; color: #f87171; border-color: #f87171; }
.btn-danger:hover { background: rgba(248,113,113,0.1); }
.btn-ghost { background: none; border-color: transparent; color: var(--text2); }
.btn-ghost:hover { color: var(--text); background: var(--accent-dim); }
.btn-sm { padding: 0.38rem 0.85rem; font-size: 0.75rem; }
.btn-icon { padding: 0.4rem; }

/* ── SECTION META ── */
.eyebrow {
  display: inline-flex; align-items: center; gap: 0.5rem;
  font-size: 0.72rem; letter-spacing: 0.18em; text-transform: uppercase;
  color: var(--text3); font-family: var(--mono); margin-bottom: 1rem;
}
.eyebrow::before { content: '_'; color: var(--text3); font-size: 0.82rem; font-weight: 700; margin-right: 0.15rem; }
.section-lead { color: var(--text2); max-width: 560px; margin-top: 0.75rem; font-size: 1rem; }

/* ── PAGE HERO ── */
.page-hero { padding: 4rem 0 3rem; border-bottom: 1px solid var(--border); position: relative; overflow: hidden; }
.page-hero h1 { font-size: clamp(2rem,5vw,3.5rem); }

/* ── HERO ── */
.hero {
  min-height: calc(100vh - 64px);
  display: flex; align-items: center; padding: 5rem 0 4rem;
  position: relative; overflow: hidden;
}
@media (max-width: 640px) {
  .hero { min-height: 0; padding: 3rem 0 3.5rem; align-items: flex-start; }
}
.hero-grid-lines {
  position: absolute; inset: 0; pointer-events: none;
  background-image: linear-gradient(var(--border) 1px, transparent 1px),
                    linear-gradient(90deg, var(--border) 1px, transparent 1px);
  background-size: 60px 60px;
  mask-image: radial-gradient(ellipse 80% 80% at 50% 50%, black 0%, transparent 70%);
  opacity: 0.3;
}
.hero-inner { display: grid; grid-template-columns: 1fr 420px; gap: 5rem; align-items: center; position: relative; }

.hero-badge {
  display: inline-flex; align-items: center; gap: 0.5rem;
  padding: 0.35rem 0.9rem;
  background: var(--surface); border: 1px solid var(--border2);
  border-radius: 2rem; font-size: 0.72rem; color: var(--text2); margin-bottom: 1.75rem;
}
.hero-badge-dot {
  width: 6px; height: 6px; border-radius: 50%;
  background: var(--green); box-shadow: 0 0 8px var(--green);
  animation: pulse 2s ease infinite;
}
@keyframes pulse { 0%,100%{opacity:1;transform:scale(1)} 50%{opacity:0.6;transform:scale(0.85)} }

.hero-title { margin-bottom: 1.25rem; }
.hero-sub { font-size: 1rem; color: var(--text2); max-width: 500px; margin-bottom: 2.5rem; line-height: 1.7; }
.hero-actions { display: flex; gap: 0.75rem; flex-wrap: wrap; }

/* Code block */
.code-block {
  background: var(--bg2); border: 1px solid var(--border);
  border-radius: var(--radius-lg); overflow: hidden; font-size: 0.78rem;
}
.code-block-bar {
  padding: 0.65rem 1rem; background: var(--bg3);
  border-bottom: 1px solid var(--border);
  display: flex; align-items: center; gap: 0.5rem;
}
.dot { width: 10px; height: 10px; border-radius: 50%; }
.dot-r { background: #ff5f57; }
.dot-y { background: #febc2e; }
.dot-g { background: #28c840; }
.code-block-tab {
  margin-left: auto; font-size: 0.68rem; color: var(--text3);
  padding: 0.15rem 0.6rem; background: var(--bg);
  border: 1px solid var(--border); border-radius: 3px;
}
.code-block-body { padding: 1.4rem 1.5rem; line-height: 2.1; font-family: var(--mono); }
.c-comment { color: var(--text3); }
.c-key     { color: #79c0ff; }
.c-str     { color: #a5d6ff; }
.c-val     { color: #56d364; }
.c-brace   { color: var(--text3); }
.c-num     { color: #ff9966; }

/* ── PROJECTS GRID ── */
.projects-grid { display: grid; grid-template-columns: repeat(auto-fill,minmax(340px,1fr)); gap: 1.25rem; }
.project-card {
  background: var(--surface); border: 1px solid var(--border);
  border-radius: var(--radius-lg); overflow: hidden; cursor: pointer;
  transition: border-color var(--fast), transform var(--mid) var(--ease), box-shadow var(--mid);
  text-decoration: none; color: inherit; display: block;
}
.project-card:hover { border-color: var(--border2); transform: translateY(-3px); box-shadow: var(--shadow-lg); color: inherit; }
.project-thumb { aspect-ratio: 16/9; background: var(--bg3); position: relative; overflow: hidden; }
.project-thumb img { width: 100%; height: 100%; object-fit: cover; }
.project-thumb-placeholder { width: 100%; height: 100%; display: flex; align-items: center; justify-content: center; font-size: 3rem; color: var(--text3); }
.project-body { padding: 1.35rem; }
.project-name { font-size: 1rem; font-weight: 700; margin-bottom: 0.5rem; color: var(--text); }
.project-desc { font-size: 0.8rem; color: var(--text2); line-height: 1.5; margin-bottom: 1rem; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
.project-tags { display: flex; flex-wrap: wrap; gap: 0.35rem; margin-bottom: 1rem; }
.tag { font-size: 0.68rem; padding: 0.18rem 0.55rem; background: var(--accent-dim); border: 1px solid var(--border); border-radius: 2rem; color: var(--text3); font-family: var(--mono); }
.project-footer { display: flex; gap: 0.5rem; flex-wrap: wrap; }

/* ── SERVICES ── */
.services-grid { display: grid; grid-template-columns: repeat(auto-fill,minmax(250px,1fr)); gap: 1.25rem; }
.service-card {
  background: var(--surface); border: 1px solid var(--border);
  border-radius: var(--radius-lg); padding: 1.75rem;
  transition: border-color var(--fast), transform var(--mid) var(--ease);
}
.service-card:hover { border-color: var(--border2); transform: translateY(-2px); }
.service-icon { font-size: 1.75rem; margin-bottom: 1rem; }
.service-name { font-size: 0.95rem; font-weight: 700; margin-bottom: 0.4rem; color: var(--text); }
.service-desc { font-size: 0.8rem; color: var(--text2); line-height: 1.55; }

/* ── SOCIAL PROOF ── */
.proof-grid { display: grid; grid-template-columns: repeat(auto-fill,minmax(300px,1fr)); gap: 1.25rem; }
.proof-card { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius-lg); padding: 1.75rem; }
.proof-platform { font-size: 0.68rem; letter-spacing: 0.18em; text-transform: uppercase; color: var(--text3); margin-bottom: 0.6rem; }
.proof-metric { font-size: 2.8rem; font-weight: 800; font-family: var(--display); line-height: 1; color: var(--text); }
.proof-label { font-size: 0.8rem; color: var(--text2); margin: 0.4rem 0 0.75rem; }
.proof-desc { font-size: 0.78rem; color: var(--text2); line-height: 1.55; }
.proof-img { width: 100%; border-radius: var(--radius); margin-top: 1rem; object-fit: cover; }

/* ── ABOUT ── */
.about-grid { display: grid; grid-template-columns: 360px 1fr; gap: 5rem; align-items: start; }
.about-avatar {
  aspect-ratio: 1; background: var(--bg3); border: 1px solid var(--border);
  border-radius: var(--radius-xl); display: flex; align-items: center; justify-content: center;
  font-size: 6rem; overflow: hidden;
}
.about-avatar img { width: 100%; height: 100%; object-fit: cover; }
.stat-row { display: flex; justify-content: space-between; font-size: 0.8rem; padding: 0.6rem 0; border-bottom: 1px solid var(--border); }
.stat-row:last-child { border-bottom: none; }
.stat-lbl { color: var(--text3); }
.skills-wrap { display: flex; flex-wrap: wrap; gap: 0.5rem; margin-top: 1.25rem; }
.skill-pill { padding: 0.35rem 0.8rem; background: var(--accent-dim); border: 1px solid var(--border); border-radius: var(--radius); font-size: 0.75rem; color: var(--text2); }
.exp-item { display: grid; grid-template-columns: 90px 1fr; gap: 1.25rem; padding: 1.25rem 0; border-bottom: 1px solid var(--border); }
.exp-item:last-child { border-bottom: none; }
.exp-year { font-size: 0.72rem; color: var(--text3); padding-top: 0.25rem; }
.exp-title { font-size: 0.9rem; font-weight: 700; margin-bottom: 0.25rem; color: var(--text); }
.exp-sub { font-size: 0.78rem; color: var(--text2); }

/* ── CONTACT ── */
.contact-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 5rem; align-items: start; }
.contact-info { display: flex; flex-direction: column; gap: 1.5rem; }
.contact-row { display: flex; align-items: flex-start; gap: 1rem; }
.contact-icon { width: 38px; height: 38px; flex-shrink: 0; background: var(--accent-dim); border: 1px solid var(--border); border-radius: var(--radius); display: flex; align-items: center; justify-content: center; font-size: 1rem; }
.contact-lbl { font-size: 0.7rem; color: var(--text3); margin-bottom: 0.2rem; letter-spacing: 0.08em; }
.contact-val { font-size: 0.85rem; color: var(--text); }

.form { display: flex; flex-direction: column; gap: 1rem; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; }
.form-group { display: flex; flex-direction: column; gap: 0.4rem; }
.form-label { font-size: 0.72rem; color: var(--text2); letter-spacing: 0.05em; }
.form-input, .form-textarea, .form-select {
  background: var(--surface); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 0.65rem 0.9rem;
  color: var(--text); font-family: var(--mono); font-size: 0.82rem;
  transition: border-color var(--fast), background var(--fast); width: 100%;
}
.form-input:focus, .form-textarea:focus { outline: none; border-color: var(--border2); background: var(--bg2); }
.form-textarea { resize: vertical; min-height: 130px; }

/* ── VIEWER ── */
.viewer-wrap { height: calc(100vh - 64px); display: grid; grid-template-columns: 220px 1fr 1fr; overflow: hidden; }
.v-topbar { background: var(--bg3); border-bottom: 1px solid var(--border); padding: 0 1rem; height: 42px; display: flex; align-items: center; gap: 0.75rem; flex-shrink: 0; }
.v-project-name { font-weight: 700; font-size: 0.85rem; white-space: nowrap; }
.v-project-desc { font-size: 0.75rem; color: var(--text3); overflow: hidden; text-overflow: ellipsis; white-space: nowrap; flex: 1; }
.v-tree { background: var(--bg2); border-right: 1px solid var(--border); overflow-y: auto; display: flex; flex-direction: column; }
.v-tree-head { padding: 0.6rem 1rem; font-size: 0.62rem; letter-spacing: 0.18em; text-transform: uppercase; color: var(--text3); border-bottom: 1px solid var(--border); flex-shrink: 0; }
.v-code { display: flex; flex-direction: column; overflow: hidden; background: var(--bg); border-right: 1px solid var(--border); }
.v-code-bar { padding: 0.5rem 1rem; background: var(--bg3); border-bottom: 1px solid var(--border); display: flex; align-items: center; gap: 0.5rem; flex-shrink: 0; min-height: 38px; }
.v-code-filename { font-size: 0.78rem; color: var(--text2); flex: 1; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.v-lang-badge { font-size: 0.62rem; padding: 0.12rem 0.45rem; background: var(--accent-dim); border: 1px solid var(--border); border-radius: 2rem; color: var(--text3); white-space: nowrap; }
.v-code-body { flex: 1; overflow: auto; }
.v-code-body pre { margin: 0; background: transparent !important; padding: 1rem; }
.v-code-body code { font-size: 0.77rem; line-height: 1.7; }
.v-preview { display: flex; flex-direction: column; overflow: hidden; }
.v-preview-bar { padding: 0.5rem 0.75rem; background: var(--bg3); border-bottom: 1px solid var(--border); display: flex; align-items: center; gap: 0.5rem; flex-shrink: 0; min-height: 38px; }
.v-url { flex: 1; padding: 0.22rem 0.6rem; background: var(--bg2); border: 1px solid var(--border); border-radius: var(--radius); font-size: 0.72rem; color: var(--text3); font-family: var(--mono); overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.v-iframe { flex: 1; border: none; background: #fff; }
.v-empty { flex: 1; display: flex; align-items: center; justify-content: center; flex-direction: column; gap: 0.5rem; color: var(--text3); font-size: 0.82rem; }
.ti { padding: 0.28rem 1rem; font-size: 0.77rem; cursor: pointer; display: flex; align-items: center; gap: 0.45rem; color: var(--text2); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; transition: all var(--fast); }
.ti:hover { background: var(--accent-dim); color: var(--text); }
.ti.active { background: var(--accent-mid); color: var(--text); font-weight: 600; }
.ti-folder { padding: 0.28rem 1rem; font-size: 0.72rem; color: var(--text3); cursor: pointer; display: flex; align-items: center; gap: 0.45rem; transition: color var(--fast); }
.ti-folder:hover { color: var(--text2); }
.ti-children { padding-left: 12px; }
.ti-children.collapsed { display: none; }

/* ── FOOTER ── */
.site-footer { border-top: 1px solid var(--border); padding: 2.5rem 2rem; background: var(--bg2); }
.footer-inner { max-width: 1160px; margin: 0 auto; display: flex; align-items: center; justify-content: space-between; flex-wrap: wrap; gap: 1rem; }
.footer-copy { font-size: 0.75rem; color: var(--text3); }
.footer-links { display: flex; gap: 1.5rem; }
.footer-links a { font-size: 0.75rem; color: var(--text3); transition: color var(--fast); }
.footer-links a:hover { color: var(--text); }

/* ── ALERTS ── */
.alert { padding: 0.75rem 1rem; border-radius: var(--radius); font-size: 0.8rem; border: 1px solid; margin-bottom: 1rem; }
.alert-success { background: rgba(74,222,128,0.08); border-color: rgba(74,222,128,0.25); color: #4ade80; }
.alert-error   { background: rgba(248,113,113,0.08); border-color: rgba(248,113,113,0.25); color: #f87171; }
.alert-info    { background: var(--accent-dim); border-color: var(--border); color: var(--text2); }

/* ── CTA SECTION ── */
.cta-section { background: var(--surface); border-top: 1px solid var(--border); border-bottom: 1px solid var(--border); text-align: center; padding: 5rem 0; }

/* ── SPINNER ── */
.spinner { display: inline-block; width: 16px; height: 16px; border: 2px solid var(--border); border-top-color: var(--text); border-radius: 50%; animation: spin 0.6s linear infinite; }
@keyframes spin { to { transform: rotate(360deg); } }

hr.divider { border: none; border-top: 1px solid var(--border); margin: 2rem 0; }
.empty { text-align: center; padding: 5rem 2rem; color: var(--text3); }
.empty-icon { font-size: 3.5rem; margin-bottom: 1rem; display: block; }

/* ── TOAST ── */
#toast-container { position: fixed; bottom: 1.5rem; right: 1.5rem; z-index: 9999; display: flex; flex-direction: column; gap: 0.5rem; }
.toast { padding: 0.7rem 1.1rem; border-radius: var(--radius); font-size: 0.8rem; font-family: var(--mono); backdrop-filter: blur(12px); max-width: 300px; border: 1px solid; animation: toastIn 0.2s var(--ease); }
.toast-success { background: rgba(74,222,128,0.1); border-color: rgba(74,222,128,0.3); color: #4ade80; }
.toast-error   { background: rgba(248,113,113,0.1); border-color: rgba(248,113,113,0.3); color: #f87171; }
.toast-info    { background: var(--surface); border-color: var(--border); color: var(--text2); }
@keyframes toastIn { from{opacity:0;transform:translateX(16px)} to{opacity:1;transform:translateX(0)} }

/* ── RESPONSIVE ── */
@media (max-width: 960px) {
  .hero-inner { grid-template-columns: 1fr; }
  .code-block { display: none; }
  .about-grid { grid-template-columns: 1fr; }
  .contact-grid { grid-template-columns: 1fr; gap: 3rem; }
  .viewer-wrap { grid-template-columns: 200px 1fr; }
  .v-preview { display: none; }
}
@media (max-width: 640px) {
  .nav-links { display: none; }
  .nav-cta   { display: none; }
  .section { padding: 4rem 0; }
  .projects-grid { grid-template-columns: 1fr; }
  .form-row { grid-template-columns: 1fr; }
  .viewer-wrap { grid-template-columns: 1fr; }
  .v-tree { display: none; }
  /* Hero */
  .hero-title { margin-bottom: 1rem; }
  .hero-sub { font-size: 0.9rem; margin-bottom: 2rem; }
  .hero-badge { margin-bottom: 1.25rem; }
  .hero-actions { gap: 0.6rem; }
  .hero-actions .btn { flex: 1; justify-content: center; }
}

/* ── ADMIN EXTRAS (shared with admin panel) ── */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
  gap: 1rem;
  margin-bottom: 2rem;
}
.stat-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 1.25rem 1.5rem;
}
.stat-label {
  font-size: 0.7rem;
  color: var(--text3);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  margin-bottom: 0.5rem;
  font-family: var(--font-mono, monospace);
}
.stat-value {
  font-size: 1.8rem;
  font-weight: 800;
  font-family: var(--font-display, sans-serif);
  letter-spacing: -0.03em;
}
.admin-table-wrap {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
}
.admin-table-header {
  display: flex;
  align-items: center;
  padding: 1rem 1.5rem;
  border-bottom: 1px solid var(--border);
}
.admin-table-title {
  font-size: 0.82rem;
  font-weight: 700;
  letter-spacing: 0.02em;
}
.admin-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.82rem;
}
.admin-table th {
  text-align: left;
  padding: 0.65rem 1.25rem;
  font-size: 0.68rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text3);
  border-bottom: 1px solid var(--border);
}
.admin-table td {
  padding: 0.75rem 1.25rem;
  border-bottom: 1px solid var(--border);
  vertical-align: middle;
}
.admin-table tbody tr:last-child td { border-bottom: none; }
.admin-table tbody tr:hover { background: var(--accent-dim); }
.empty-state {
  display: flex; flex-direction: column;
  align-items: center; justify-content: center;
  padding: 3rem; color: var(--text3);
  text-align: center;
}
.empty-state-icon { font-size: 2rem; margin-bottom: 0.75rem; }
.btn-sm { padding: 0.3rem 0.75rem; font-size: 0.72rem; }
.btn-danger {
  background: rgba(231,76,60,0.12);
  border-color: rgba(231,76,60,0.3);
  color: #e74c3c;
}
.btn-danger:hover { background: rgba(231,76,60,0.22); }
.form-group { display: flex; flex-direction: column; gap: 0.35rem; }
.admin-content { padding: 2rem; }
@media (max-width: 768px) { .admin-content { padding: 1rem; } }

/* ── PAGE HERO CANVAS ── */
.page-canvas { position: absolute; inset: 0; z-index: 0; pointer-events: none; width: 100%; height: 100%; }
.page-hero-overlay { position: absolute; inset: 0; z-index: 1; background: linear-gradient(135deg, rgba(5,5,7,.82), rgba(5,5,7,.55), rgba(5,5,7,.75)); pointer-events: none; }
.page-hero .container { position: relative; z-index: 2; }
/* ── CURSOR ── */
.k-cursor { display: inline-block; width: .52em; height: 1em; background: var(--text); vertical-align: text-bottom; margin-left: 1px; opacity: .85; animation: kblink 1s step-end infinite; }
@keyframes kblink { 0%,100%{opacity:1} 50%{opacity:0} }