/* =========================================
   Samaneh Vajdi - Portfolio Stylesheet
   ========================================= */

/* Font */
@import url("https://fonts.googleapis.com/css2?family=Montserrat:wght@300;400;500;600;700;800&display=swap");

/* Tokens */
:root {
    --container-max: 1120px;

    /* spacing */
    --space-2xs: 6px;
    --space-xs: 10px;
    --space-sm: 14px;
    --space-md: 18px;
    --space-lg: 24px;
    --space-xl: 32px;
    --space-2xl: 40px;
    --space-3xl: 56px;

    /* colors */
    --ink-900: #141313;
    --ink-800: #1f1f1f;
    --ink-700: #383737;
    --ink-600: #4b4a4a;
    --ink-500: #6b6a6a;

    /* brand */
    --coral: #ff6c63;

    /* gradients */
    --grad-main: linear-gradient(270deg, #398fba 6%, #ff6c63 51%);
    --grad-sweep: linear-gradient(
        110deg,
        rgba(57, 143, 186, 0.35),
        rgba(255, 108, 99, 0.35),
        rgba(57, 143, 186, 0.35)
    );
    --circle-bg: radial-gradient(
        closest-side,
        #ffd1da 0%,
        #ffb6ad 55%,
        rgba(255, 108, 99, 0.22) 100%
    );

    /* motion tuning */
    --float-speed: 12s;
    --circle-speed: 14s;

    /* sticky header height */
    --header-h: 74px;
}

/* Base */
* { box-sizing: border-box; margin: 0; padding: 0; }
body {
    font-family: "Montserrat", ui-sans-serif, system-ui, -apple-system,
        "Segoe UI", Roboto, Inter, "Helvetica Neue", Arial;
    color: var(--ink-900);
    background: #fff;
}
img { max-width: 100%; height: auto; display: block; }
.container {
    width: min(100%, var(--container-max));
    margin-inline: auto;
    padding-inline: var(--space-lg);
}
section {
    padding-block: calc(var(--space-2xl) - 6px);
    scroll-margin-top: var(--header-h);
}
@media (min-width: 1024px) {
    section { padding-block: calc(var(--space-3xl) - 8px); }
}

/* Utilities */
.text-gradient-main {
    background: var(--grad-main);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    color: transparent;
}

/* Safer gradient fallback */
.text-gradient-main { color: #1f1f1f; }
@supports((-webkit-background-clip: text) or (background-clip: text)) {
  .text-gradient-main {
    background: var(--grad-main);
    -webkit-background-clip: text;
            background-clip: text;
    -webkit-text-fill-color: transparent;
            color: transparent;
  }
}

/* Type */
p, li {
    font-weight: 400;
    color: var(--ink-700);
    line-height: 1.68;
    margin: 0 0 0.9rem 0;
}
h1, h2, h3 {
    color: var(--ink-800);
    margin: 0 0 0.7rem 0;
    font-weight: 700;
}

/* Header */
html { scroll-padding-top: var(--header-h); }
header, .site-header {
    position: sticky;
    top: 0;
    z-index: 1000;
    background: #fff;
    box-shadow: 0 2px 8px rgba(0,0,0,0.08);
}

/* Welcome */
.welcome-black { color: var(--ink-900); font-weight: 800; }
.kicker {
    font-size: clamp(22px, 4.6vw, 28px);
    line-height: 1.25;
    margin: 6px 0 40px 0;
    font-weight: 700;
    color: #141313;
}

/* Hero */
.hero {
    display: grid;
    grid-template-columns: 1.1fr 0.9fr;
    grid-template-areas:
        "kicker media"
        "brand  media"
        "cta    media";
    align-items: center;
    justify-items: start;
    column-gap: 32px;
    row-gap: 12px;
    padding-top: 110px;
}
.hero-media {
    grid-area: media;
    width: clamp(240px, 37vw, 556px);
    aspect-ratio: 1/1;
    display: grid;
    place-items: center;
    isolation: isolate;
    overflow: visible;
}
.hero-img {
    position: relative;
    z-index: 1;
    width: 86%;
    height: 86%;
    object-fit: cover;
    object-position: 50% 38%;
    border-radius: 50%;
}

/* gentle float */
@keyframes floatY {
  0%{ transform:translateY(0); }
  50%{ transform:translateY(-6px); }
  100%{ transform:translateY(0); }
}
@keyframes floatOpp {
  0%{ transform:translateY(-3px); }
  50%{ transform:translateY(3px); }
  100%{ transform:translateY(-3px); }
}
@media (prefers-reduced-motion: no-preference) {
  @media (min-width: 900px) {
    .hero-img { animation: floatY var(--float-speed) ease-in-out infinite; }
    .media-circle { animation: floatOpp var(--circle-speed) ease-in-out infinite; }
    .hero-media:hover .hero-img { transform: translateY(-4px) scale(1.012); }
  }
}

/* brand */
.kicker { grid-area: kicker; text-align: left; margin-bottom: 0; }
.brand { grid-area: brand; text-align: left; margin-top: 70px; margin-bottom: 12px; }
.brand .name {
    color: var(--ink-900);
    font-weight: 800;
    letter-spacing: -0.02em;
    font-size: clamp(40px, 6vw, 68px);
    line-height: 1.05;
    margin: 0 0 12px 0;
}
.brand .role {
    font-size: clamp(18px, 3.6vw, 22px);
    font-weight: 700;
    color: #1f1f1f;
    margin: 0;
    display: block;
}
.brand .location {
    display: block;
    margin-top: 6px;
    font-size: clamp(15px, 3.2vw, 18px);
    font-weight: 400;
    color: #4b4a4a;
}

/* CTAs */
.cta-row {
    grid-area: cta;
    display: flex;
    align-items: center;
    gap: 18px;
    margin-top: 20px;
    justify-content: flex-start;
}

/* CTA button */
.action-link {
    position: relative;
    overflow: hidden;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    width: 180px;
    padding: 0.72rem 1rem;
    font-size: 16px;
    font-weight: 600;
    text-decoration: none;
    background: #fff;
    color: #398fba;
    border: 2px solid #398fba;
    border-radius: 10px;
    transition: background .25s ease, color .25s ease,
                border-color .25s ease, box-shadow .25s ease,
                transform .25s ease;
}
.action-link::before {
    content:"";
    position:absolute; inset:0;
    background:linear-gradient(90deg,rgba(255,255,255,0)0%,rgba(255,255,255,0.28)20%,rgba(255,255,255,0.12)40%,rgba(255,255,255,0)60%);
    transform:translateX(-100%);
    transition:transform .6s ease;
    pointer-events:none;
}
.action-link:hover {
    background:var(--coral); color:#fff; border-color:var(--coral);
    transform:translateY(-2px);
    box-shadow:0 10px 22px rgba(255,108,99,0.28);
}
.action-link:hover::before { transform:translateX(0%); }
.action-link .icon-box,
.action-link .icon,
.action-link>img,
.action-link>svg {
    width:22px; height:22px;
    display:inline-flex; align-items:center; justify-content:center;
    flex:0 0 22px;
    transition:transform .35s ease, filter .25s ease, opacity .25s ease;
}
.action-link .icon-box img,
.action-link .icon-img { filter:brightness(0) saturate(100%); opacity:.9; }
.action-link .icon-box { border-radius:8px; padding:2px; transition:background .25s ease; }
.action-link:hover .icon-box { background:rgba(255,255,255,0.18); }
.action-link:hover .icon-box,
.action-link:hover .icon,
.action-link:hover>img,
.action-link:hover>svg { transform:translateX(6px); }
.action-link:hover .icon-box img,
.action-link:hover .icon-img { filter:brightness(0) invert(1); opacity:1; }

/* mobile hero */
@media(max-width:640px){
  .hero{ grid-template-columns:1fr;
    grid-template-areas:"kicker""media""brand""cta";
    row-gap:16px; justify-items:center; padding-top:90px;}
  .kicker,.brand{text-align:center;}
  .brand .role,.brand .location{margin-inline:auto;}
  .cta-row{flex-direction:column;align-items:center;gap:14px;margin-inline:auto;}
  .action-link{width:100%;}
}

/* EXPERIENCE */
.exp-title, .experience h2 {
    font-size: clamp(24px, 5.4vw, 32px);
    line-height: 1.24;
    font-weight: 600;
    margin: 0;
    color: var(--ink-800);
}
.exp-count, .exp-plus, .exp-years { display:inline-block; vertical-align:baseline; }
.exp-count {
    font-weight: 800;
    font-size: clamp(40px, 7vw, 64px);
    line-height: 1;
    letter-spacing: -0.02em;
    background: var(--grad-main);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    background-size: 200% 100%;
    animation: expShine 1.2s ease-out both;
}
.exp-sub {
    display:block;
    margin-top:10px;
    font-weight:700;
    font-size: clamp(18px, 3.6vw, 22px);
    color:var(--ink-800);
    text-align:left;
}
.exp-body { margin-top:12px; }
@keyframes expShine {
    0%{ background-position:0% 50%; transform:scale(0.96); opacity:.9; }
    60%{ background-position:100% 50%; transform:scale(1.04); opacity:1; }
    100%{ background-position:100% 50%; transform:scale(1); }
}
@media(max-width:560px){ .exp-title,.experience h2{text-align:left;} }

/* About */
.about h2 { font-size: clamp(22px, 5.2vw, 30px); font-weight:600; }

/* Designer | Coder split */
.split-band {
    width:100vw; position:relative;
    left:50%; right:50%; margin-left:-50vw; margin-right:-50vw;
    background:linear-gradient(270deg,rgba(57,143,186,0.1)20.37%,rgba(255,108,99,0.1)57.73%);
    padding-block:calc(var(--space-2xl) - 6px);
    margin-bottom:20px;
}
.split {
    display:grid; grid-template-columns:1fr; gap:1.2rem;
    align-items:center; text-align:center;
}
.split-col h3{ font-weight:700; margin-bottom:.4rem; }
.split-col ul{ list-style:none; padding:0; margin:0; }
.split-col li{ margin-bottom:.25rem; color:var(--ink-700); }
.split-media{ display:grid; place-items:center; }
@media(min-width:900px){
  .split{ grid-template-columns:1fr auto 1fr; text-align:left; gap:2rem; }
  .split-col:first-child{ text-align:right; }
}

/* Chart band */
.charts-band {
    width:100vw; position:relative;
    left:50%; right:50%; margin-left:-50vw; margin-right:-50vw;
    background:linear-gradient(270deg,rgba(57,143,186,0.1)20.37%,rgba(255,108,99,0.1)57.73%);
    padding-block:calc(var(--space-2xl) - 6px);
}
.chart-grid {
    display:grid; grid-template-columns:1fr;
    gap:18px; align-items:center; justify-items:center;
}
.chart-card {
    width:min(92%,720px); aspect-ratio:16/9;
    background:#fff; border-radius:18px;
    box-shadow:0 14px 40px rgba(0,0,0,0.12);
    overflow:hidden; position:relative;
    transition:transform .35s ease;
}
.chart-card img {
    width:100%; height:100%; object-fit:contain; display:block; background:#fff;
}
@media(min-width:900px){
  .chart-grid{ grid-template-columns:1fr 1fr; }
  .chart-card{ width:92%; }
}

/* Mobile CTA align */
@media(max-width:600px){
  .brand{text-align:center; margin-top:60px;}
  .brand .role,.brand .location{margin-inline:auto;}
  .cta-row{flex-direction:column;align-items:center;gap:14px;width:100%;}
  .action-link{width:100%;justify-content:center;}
}

/* ==== Reveal, JS-safe: visible by default ==== */

/* Default visible */
.reveal,
.reveal-stagger > * {
  opacity: 1;
  transform: none;
}

/* Hide only when prepped by JS */
html.is-reveal-prep .reveal,
html.is-reveal-prep .reveal-stagger > * {
  opacity: 0;
  transform: translateY(16px);
  transition: opacity .6s ease, transform .6s ease;
  will-change: opacity, transform;
}

/* Show when marked visible */
html.is-reveal-prep .is-visible {
  opacity: 1 !important;
  transform: translateY(0) !important;
}

/* Stagger delays */
html.is-reveal-prep .reveal-stagger.is-visible > *:nth-child(1){ transition-delay:.05s; }
html.is-reveal-prep .reveal-stagger.is-visible > *:nth-child(2){ transition-delay:.15s; }
html.is-reveal-prep .reveal-stagger.is-visible > *:nth-child(3){ transition-delay:.25s; }
html.is-reveal-prep .reveal-stagger.is-visible > *:nth-child(4){ transition-delay:.35s; }
html.is-reveal-prep .reveal-stagger.is-visible > *:nth-child(5){ transition-delay:.45s; }



/* === About page touch-ups, no layout changes === */

/* 1) Hero spacing and balance on small screens */
@media (max-width: 640px){
  .hero { padding-top: 76px; row-gap: 12px; }
  .brand { margin-top: 40px; }
  .brand .name { letter-spacing: -0.01em; }
  .kicker { margin-bottom: 2px; }
}

/* 2) Make CTAs reliably full width on mobile, remove duplicate rules */
@media (max-width: 640px){
  .cta-row { width: 100%; margin-top: 16px; }
  .action-link { width: 100%; max-width: 520px; }
}

/* 3) Improve button focus and contrast without changing shape or layout */
.action-link:focus-visible {
  outline: 3px solid rgba(57,143,186,0.55);
  outline-offset: 2px;
}
.action-link { color: #2b6f91; border-color: #2b6f91; }
.action-link:hover { background: var(--coral); color: #fff; border-color: var(--coral); }

/* 4) More readable paragraphs inside About and Experience sections */
.about p, .experience p {
  max-width: 70ch;
  margin-inline: auto;
}
@media (min-width: 900px){
  .about p, .experience p { margin-inline: 0; }
}

/* 5) Headings rhythm, small visual weight tweak */
.about h2, .experience h2 {
  margin-bottom: 10px;
}
.exp-body { margin-top: 10px; }

/* 6) Split band lists look cleaner without changing grid */
.split-col li { line-height: 1.6; }
.split-col h3 { font-size: clamp(18px, 3.4vw, 20px); }

/* 7) Chart cards, subtle hover, safe on touch devices */
@media (hover: hover){
  .chart-card:hover { transform: translateY(-2px); }
}

/* 8) Scroll to top button, less dominant on mobile */
@media (max-width: 480px){
  #scrollToTopBtn { width: 56px; height: 56px; right: 18px; bottom: 22px; }
  #scrollToTopBtn svg { width: 28px; height: 28px; }
}

/* 9) Improve the text-gradient fallback color once, do not duplicate */
.text-gradient-main { color: #141313; }
@supports((-webkit-background-clip: text) or (background-clip: text)){
  .text-gradient-main {
    background: var(--grad-main);
    -webkit-background-clip: text;
            background-clip: text;
    -webkit-text-fill-color: transparent;
            color: transparent;
  }
}

/* 10) Minor image presentation polish, no layout change */
.hero-img { image-rendering: auto; }

/* 11) Footer links, subtle hover clarity */
.footer .social-icon:hover,
.footer .footer-copy a:hover {
  text-decoration: underline;
}


/* === Hero image: bigger on mobile, smooth entrance, gentle idle motion === */

/* 1) Base polish */
.hero-img {
  display: block;
  height: auto;
  border-radius: 12px;                /* purely visual, does not affect layout */
  will-change: transform, opacity;
  transform-origin: center;
  image-rendering: auto;
  opacity: 0;                         /* for the entrance animation */
  transform: translateY(12px) scale(.98);
  animation:
    heroImgIn .9s cubic-bezier(.2,.8,.2,1) forwards,
    gentleFloat 8s ease-in-out 1.2s infinite;
}

/* 2) Make it feel a touch interactive on desktop without shifting layout */
@media (hover: hover) and (pointer: fine){
  .hero-img:hover {
    transform: translateY(-2px) scale(1.01);
    filter: drop-shadow(0 6px 16px rgba(0,0,0,.18));
  }
}

/* 3) Larger, friendlier sizing on small screens */
@media (max-width: 640px){
  /* Remove any overly tight caps from other rules */
  .hero-img {
    width: clamp(280px, 88vw, 520px);  /* grows up to ~520px max on phones */
    margin-inline: auto;               /* keeps it centered */
    opacity: 0;
  }
}

/* 4) Respect reduced motion, keep size changes only */
@media (prefers-reduced-motion: reduce){
  .hero-img {
    animation: none;
    opacity: 1;
    transform: none;
  }
}

/* Keyframes */
@keyframes heroImgIn{
  to { opacity: 1; transform: translateY(0) scale(1); }
}

@keyframes gentleFloat{
  0%   { transform: translateY(0)    scale(1);    }
  50%  { transform: translateY(-6px) scale(1.01); }
  100% { transform: translateY(0)    scale(1);    }
}