/* =========================================================
   Anastasia Romanova — modern portfolio baseline (static)
   - 2026 bento / glass / gradient / motion
   - light/dark + system preference + persisted toggle
   - mobile menu, scroll reveal, subtle micro-interactions
   ========================================================= */

/* 1. Base Variables (shared across both themes) */
:root {
  /* typography */
  --font: ui-sans-serif, system-ui, -apple-system, Segoe UI, Roboto, Inter, "Helvetica Neue", Arial, "Noto Sans", "Apple Color Emoji", "Segoe UI Emoji";
  --fs-900: clamp(2.25rem, 1.2rem + 3.2vw, 3.65rem);
  --fs-800: clamp(1.55rem, 1.05rem + 1.55vw, 2.25rem);
  --fs-700: clamp(1.18rem, 1.02rem + .65vw, 1.55rem);
  --fs-600: 1.05rem;
  --fs-500: .95rem;
  --lh: 1.55;

  /* spacing */
  --container: 75vw;
  --gutter: 18px;
  --r-xl: 26px;
  --r-lg: 20px;
  --r-md: 14px;

  /* motion */
  --e1: cubic-bezier(.2,.8,.2,1);
  --dur-1: 140ms;
  --dur-2: 260ms;

  /* default colors (Dark Mode) */
  --bg: #0b1220;
  --card: rgba(255,255,255,.06);
  --card2: rgba(255,255,255,.085);
  --text: rgba(255,255,255,.92);
  --muted: rgba(255,255,255,.70);
  --border: rgba(255,255,255,.14);
  --shadow: 0 18px 60px rgba(0,0,0,.25);

  --a: #6e562b;      
  --b: #199cb9;      
  --c: #f6d365;      
  --ok: #32d583;
  --warn: #fdb022;

  color-scheme: dark light; /* Allows browser to support both */
}

/* 2. Automatic Light Mode (System Preference) */
@media (prefers-color-scheme: light) {
  :root:not([data-theme="dark"]) {
    --bg: #f7f8fb;
    --card: rgb(255,255,255);
    --card2: rgb(255,255,255);
    --text: rgba(12,18,32,.92);
    --muted: rgba(12,18,32,.68);
    --border: rgba(12,18,32,.12);
    --shadow: 0 18px 60px rgba(18,30,60,.12);
  }
}

/* 3. Manual Overrides (Persistent Toggle) */
html[data-theme="light"] {
    --bg: #f7f8fb;
    --card: rgb(255,255,255);
    --card2: rgb(255,255,255);
    --text: rgb(12,18,32);
    --muted: rgb(12,18,32);
    --border: rgb(12,18,32);
    --shadow: 0 18px 60px rgba(18,30,60,.12);
}

html[data-theme="dark"] {
    --bg: #0b1220;
    --card: rgb(255,255,255);
    --card2: rgb(255,255,255);
    --text: rgb(255,255,255);
    --muted: rgb(255,255,255);
    --border: rgb(255,255,255);
    --shadow: 0 18px 60px rgb(0,0,0,.25);
}

*{box-sizing:border-box}
html,body{height:100%}
body{
  margin:0;
  font-family: var(--font);
  font-size: var(--fs-600);
  line-height: var(--lh);
  color: var(--text);
  background: radial-gradient(1200px 900px at 10% 0%, color-mix(in srgb, var(--a) 14%, transparent), transparent 60%),
              radial-gradient(1200px 900px at 90% 10%, color-mix(in srgb, var(--b) 10%, transparent), transparent 55%),
              radial-gradient(900px 700px at 50% 100%, color-mix(in srgb, var(--c) 16%, transparent), transparent 55%),
              var(--bg);
  overflow-x:hidden;
  background-attachment: fixed;
  background-repeat: no-repeat;
  background-size: cover; /* Ensures it fills the whole screen */
  /* Ensure header remains visible and content doesn't overlap when header is fixed */
  padding-top: 64px;
}

a{color:inherit; text-decoration:none}
a:hover{opacity:.98}

.container{
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 1rem;
}

.topbar{
  /* Keep header always visible: fixed instead of sticky */
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  width: 100%;
  z-index: 50;
  border-bottom: 1px solid color-mix(in srgb, var(--border) 85%, transparent);
  background: color-mix(in srgb, var(--bg) 72%, transparent);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
}

.nav{
  max-width: var(--container);
  margin:0 auto;
  padding: .85rem 1rem;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap: 1rem;
}

.brand{
  display:flex;
  align-items:center;
  gap:.65rem;
  user-select:none;
}
.brand-dot{
  width:11px; height:11px; border-radius:999px;
  background: linear-gradient(135deg, var(--a), color-mix(in srgb, var(--b) 60%, #fff));
  box-shadow: 0 0 0 4px color-mix(in srgb, var(--a) 14%, transparent);
}
.brand strong{letter-spacing:.2px}

.nav-links{
  display:flex;
  align-items:center;
  gap:.25rem;
}
.nav-links a{
  padding: .55rem .82rem;
  border-radius:999px;
  opacity:.84;
  transition: transform var(--dur-1) var(--e1), background var(--dur-1) var(--e1), opacity var(--dur-1) var(--e1);
}
.nav-links a:hover{
  background: color-mix(in srgb, var(--card2) 70%, transparent);
  opacity: 1;
  transform: translateY(-1px);
}
.nav-links a[aria-current="page"]{
  background: color-mix(in srgb, var(--a) 18%, transparent);
  opacity: 1;
}

.ext-links{
  text-decoration: underline;;  
}

.btn{
  border: 1px solid color-mix(in srgb, var(--border) 85%, transparent);
  background: color-mix(in srgb, var(--card2) 75%, transparent);
  padding: .6rem .95rem;
  border-radius: 999px;
  cursor:pointer;
  color: var(--text);
  box-shadow: inset 0 1px 0 rgba(255,255,255,.06);
  transition: transform var(--dur-1) var(--e1), box-shadow var(--dur-2) var(--e1), background var(--dur-2) var(--e1);
}
.btn:hover{transform: translateY(-1px); box-shadow: var(--shadow)}
.btn:active{transform: translateY(0); box-shadow:none}
.btn.ghost{background: transparent}
.btn.primary{
  background: linear-gradient(135deg, color-mix(in srgb, var(--a) 80%, #fff), color-mix(in srgb, var(--b) 70%, #fff));
  border-color: transparent;
  color: rgba(10,12,20,.92);
}

.nav-toggle{display:none}

/* bento + cards */
.card{
  border: 1px solid color-mix(in srgb, var(--border) 88%, transparent);
  background: color-mix(in srgb, var(--card) 92%, transparent);
  border-radius: var(--r-xl);
  box-shadow: 0 14px 46px rgba(0,0,0,.18);
  padding: 1.2rem 1.25rem;
}

.card.soft{
  background: color-mix(in srgb, var(--card2) 65%, transparent);
}

.kicker{font-size: var(--fs-500); color: var(--muted); margin:0 0 .35rem}
.h1{font-size: var(--fs-900); line-height: 1.06; letter-spacing: -.02em; margin:.15rem 0 .75rem}
.h2{font-size: var(--fs-800); letter-spacing:-.01em; margin:.2rem 0 .6rem}
.h3{font-size: var(--fs-700); margin:.15rem 0 .45rem}
.h4 {font-size: var(--fs-600); margin: .1rem 0 0; /* Changed the last value from .3rem to 0 */}
.muted {color: var(--muted); margin-top: 0; /* Add this to ensure it sits flush against the header */}
.small{font-size: var(--fs-500)}
hr.sep{border:0; border-top:1px solid color-mix(in srgb, var(--border) 70%, transparent); margin: 1.1rem 0}

/* hero */
.hero{
  display:grid;
  grid-template-columns: 1.55fr .95fr;
  gap: var(--gutter);
  padding: 1.1rem 0 0;
  align-items: start;
}
@media (max-width: 780px){
  .hero{grid-template-columns: 1fr}
}

.pills{display:flex; flex-wrap:wrap; gap:.5rem; margin-top:.9rem}
.pill{
  border: 1px solid color-mix(in srgb, var(--border) 70%, transparent);
  background: color-mix(in srgb, var(--a) 12%, transparent);
  padding: .28rem .66rem;
  border-radius: 999px;
  font-size: var(--fs-500);
}

.bento{
  display:grid;
  grid-template-columns: 1.1fr 1fr 1fr;
  gap: var(--gutter);
  margin-top: var(--gutter);
}
@media (max-width: 780px){
  .bento{grid-template-columns: 1fr}
}

.bento .span-2{grid-column: span 2}
@media (max-width: 780px){
  .bento .span-2{grid-column: auto}
}

/* hover lift */
.lift{
  transition: transform var(--dur-2) var(--e1), box-shadow var(--dur-2) var(--e1);
}
.lift:hover{transform: translateY(-2px); box-shadow: var(--shadow)}

/* list */
ul.clean{padding-left: 1.1rem; margin:.5rem 0}
ul.clean li{margin:.35rem 0}

/* timeline */
.timeline{display:flex; flex-direction:column; gap:.75rem; margin-top:.5rem}
.ti{
  display:flex;
  gap:.75rem;
  padding:.75rem;
  border-radius: var(--r-lg);
  border: 1px solid color-mix(in srgb, var(--border) 75%, transparent);
  background: color-mix(in srgb, var(--card2) 70%, transparent);
}
.dot{
  width:10px;height:10px;border-radius:999px;margin-top:.45rem;
  background: linear-gradient(135deg, var(--b), var(--a));
  box-shadow: 0 0 0 4px color-mix(in srgb, var(--b) 12%, transparent);
}
.ti strong{display:block}
.ti .meta{font-size: var(--fs-500); color: var(--muted)}

/* footer */
.footer{
  margin-top: 2.2rem;
  padding: 1.4rem 0 2.2rem;
  border-top: 1px solid color-mix(in srgb, var(--border) 75%, transparent);
  background: color-mix(in srgb, var(--bg) 72%, transparent);
}

/* reveal */
.reveal{opacity:0; transform: translateY(10px); transition: opacity .55s var(--e1), transform .55s var(--e1)}
.reveal.show{opacity:1; transform: translateY(0)}
@media (prefers-reduced-motion: reduce){
  .reveal{opacity:1; transform:none; transition:none}
  .lift{transition:none}
  .nav-links a,.btn{transition:none}
}

/* mobile nav */
@media (max-width: 780px){
  .nav-links{display:none}
  .nav-toggle{display:inline-flex}
  .menu{
    position:absolute;
    right: 1rem;
    top: 64px;
    width: min(320px, calc(100vw - 2rem));
    display:none;
    flex-direction:column;
    gap:.2rem;
    padding:.65rem;
    border-radius: var(--r-lg);
    border: 1px solid color-mix(in srgb, var(--border) 80%, transparent);
    background: color-mix(in srgb, var(--bg) 72%, transparent);
    backdrop-filter: blur(14px);
    -webkit-backdrop-filter: blur(14px);
    box-shadow: var(--shadow);
  }
  .menu a{padding:.7rem .9rem; border-radius: 14px}
  .menu a:hover{background: color-mix(in srgb, var(--card2) 75%, transparent)}
  .menu .row{display:flex; gap:.5rem; align-items:center; justify-content:space-between; padding:.3rem .35rem}
}

/* forms */
input, textarea{
  width:100%;
  font: inherit;
  color: var(--text);
  background: color-mix(in srgb, var(--card2) 70%, transparent);
  border: 1px solid color-mix(in srgb, var(--border) 80%, transparent);
  border-radius: var(--r-md);
  padding: .75rem .85rem;
  outline:none;
}
textarea{min-height: 140px; resize: vertical}
input:focus, textarea:focus{
  border-color: color-mix(in srgb, var(--a) 55%, var(--border));
  box-shadow: 0 0 0 4px color-mix(in srgb, var(--a) 14%, transparent);
}


/* CV Template Layout */
.cv-layout {
  display: grid;
  /* Changed from 1fr 2fr to 1fr 4fr to give the main content 80% of the container */
  grid-template-columns: 1fr 4fr; 
  gap: 2rem;
  padding-top: 2rem;
  align-items: start;
}

@media (max-width: 780px) {
  .cv-layout { grid-template-columns: 1fr; }
}

.cv-sidebar {
  padding: 1.5rem;
  position: sticky;
  top: 5rem;
}

.cv-section { margin-bottom: 1.5rem; }
.cv-section p { margin: 0.5rem 0; font-size: var(--fs-500); }
.cv-section i { color: var(--a); margin-right: 8px; }

.cv-item {
  margin-bottom: 2rem;
  padding-left: 1rem;
  border-left: 2px solid var(--border);
}

.text-accent { color: var(--a); font-weight: bold; }

/* W3-style Progress Bars */
.progress-bg {
  background: var(--border);
  border-radius: 10px;
  height: 8px;
  margin-bottom: 1rem;
  overflow: hidden;
}

.progress-bar {
  /* background: linear-gradient(90deg, var(--a), var(--b)); */
  background: var(--a);
  height: 100%;
  border-radius: 10px;
}

.tag {
  background: var(--ok);
  color: #000;
  padding: 2px 8px;
  border-radius: 4px;
  font-size: 0.75rem;
  vertical-align: middle;
}

section[id] {
  scroll-margin-top: 5rem; /* Adjust this value to match your top bar height */
}

/* for high contacst bolds inside muted class  */
.high-contrast {
    color: #000000 !important;
}

/* Replace your existing tableau-viz block with this */
tableau-viz, 
.tableauPlaceholder, 
.tableauViz,
iframe {
  width: 100% !important;
  min-width: 100% !important;
  max-width: 100% !important;
  height: 700px !important; /* Increased height for better visibility on wide screens */
  display: block !important;
  border: none;
}

/* Blog-specific helpers */
.header-panel{
  display:flex;
  align-items:center;
  justify-content:space-between;
  padding:1rem;
  background: color-mix(in srgb, var(--card) 92%, transparent);
  border-bottom: 1px solid color-mix(in srgb, var(--border) 70%, transparent);
}
.header-panel .title{ font-size: var(--fs-700); font-weight:700 }
.blog-list{ max-width:900px; margin:2rem auto; padding:0 1rem }
.post{
  border: 1px solid color-mix(in srgb, var(--border) 75%, transparent);
  border-radius: var(--r-md);
  padding:1rem;
  margin-bottom:1rem;
  background: color-mix(in srgb, var(--card) 94%, transparent);
}
.post .meta{ color:var(--muted); font-size: var(--fs-500); margin-bottom:.5rem }
.excerpt{ max-height:4.5em; overflow:hidden; transition: max-height .3s var(--e1) }
.post.expanded .excerpt{ max-height:1000px }
.full-content{ display:none }
.post.expanded .full-content{ display:block }
.toggle-btn{ background:none; border:none; color: var(--b); cursor:pointer; padding:.25rem 0; font-weight:600 }