/* =========================================================
   Sooyeon Lee — Portfolio
   Direction:
   - Clean cream-white background
   - Mint as accent only (nav pill, CTA, tags)
   - Clear, structured, system-focused tone
   ========================================================= */


   /* ---------- Tokens ---------- */
:root {
    /* Background: near-white cream */
    --bg: #ffffff;
    --bg-2: #fffdf8;
    --bg-3: #fdffc1;

    /* Surfaces */
    --panel: #ffffff;
    --stroke: rgba(15,23,42,0.10);

    /* Text */
    --text: #202020;
    --muted: #434343;
    --muted-2: #898989;

    /* Mint accent */
    --mint: #79e3d2;
    --mint-deep: #7fc6bb;

    /* Shadows */
    --shadow: 0 12px 28px rgba(15,23,42,0.10);
    --shadow-soft: 0 8px 20px rgba(15,23,42,0.06);

    --radius: 18px;
    --radius-lg: 22px;

    --container: min(1100px,92vw);
}

/* ------------ Base ------------- */
* {
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    margin: 0;
    font-family: system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, 'Open Sans', 'Helvetica Neue', sans-serif;
    color: var(--text);
    line-height: 1.6;


background:linear-gradient(
    180deg,
    var(--bg) 0%,
    var(--bg-2) 55%,
    var(--bg-3) 100%,
);
}

img {
    max-width: 100%; display: block;
}

a{
    color:inherit;
}

.container{
    width: var(--container);
    margin: 0 auto;
}

/* ---------- Header / Pill Nav ---------- */
.site-header {
    position: sticky;
    top: 0;
    z-index: 20;
    padding: 18px 0;
    background: linear-gradient(
        to bottom,
        rgba(255,255,255,0.95),
        rgba(226, 216, 216, 0)
    );
    backdrop-filter: blur(1px);
}

.top-nav{
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 18px;

    padding: 16px 18px;
    border-radius: var(--radius-lg);

    background:linear-gradient(
        170deg,
        rgba(198, 241, 233, 0.363),
        var(--panel)
    );

    border: 1px solid rgba(143,211,200,0.30);
    box-shadow: var(--shadow);
}

.top-links {
    list-style: none;
    margin: 0;
    padding: 0;

    display: flex;
    align-items: center;
    gap: 6px;
    flex-wrap: wrap;
}

.top-links a {
    text-decoration: none;
    font-size: 15px;
    font-weight: 500;
    letter-spacing: 0.2px;
    color: #181616;

    padding: 6px 8px;
    border-radius: 20px;
}

.top-links a:hover{
    background: rgba(100, 219, 199, 0.30);
}

/* CTA Tab */
.nav-cta{
    border: 1px solid rgba(143,211,200,0.55);
    background: rgba(116, 219, 202, 0.3);
    font-weight: 800;
}

/* icons */
.top-icons{
    display: flex;
    gap: 10px;
    align-items: center;
}

.icon-link{
    width: 34px;
    height: 34px;
    display: grid;
    place-items: center;

    text-decoration: none;
    border-radius: 12px;

    border: 1px solid var(--stroke);
    background: var(--panel);

    color: #292929;
    font-weight: 800;
    font-size: 14px;
    transition: transform 160ms ease,
    box-shadow 160ms ease, background-color 160ms ease,
    border-color 160ms ease;
}

.icon-link:hover{
    border-color: rgba(143,211,200,0.70);
    background: rgba(156, 221, 210, 0.3);
    box-shadow: var(--shadow-soft);
    transform: translateY(-1px);
}

/* ---------- Hero ---------- */
.hero{
    display: grid;
    grid-template-columns: 1.2fr 0.8fr;
    gap: 38px;
    align-items: center;
    padding: 56px 0 36px;
}

.eyebrow{
    margin: 0 0 10px;
    font-size: 12px;
    letter-spacing: 0.14em;
    text-transform: uppercase;
    color: var(--muted);
    font-weight: 600;
}

.hero-title{
    margin: 0 0 12px;
    font-size: 56px;
    line-height: 1.6;
    letter-spacing: 0.02em;
}

.hero-sub{
    margin: 0 0 12px;
    margin-top: 20px;
    max-width: 760px;
    color: var(--muted);
}

.muted{
    color: rgba(5, 5, 5, 0.588);
}

/* buttons */
.hero-actions{
    display: flex;
    gap: 12px;
    flex-wrap: wrap;
    margin-top: 18px;
}

.btn{
    display: inline-block;
    text-decoration: none;
    margin-top: 20px;
    cursor: pointer;
    padding: 10px 16px;
    border-radius: 30px;

    border: 1px solid var(--stroke);
    background: var(--panel);
    color: #0f172a;

    font-weight: 600;
    transition: transform 160ms ease, box-shadow 160ms ease, background-color 160ms ease, border-color 160ms ease;
}

.btn:hover{
    transform: translateY(-1px);
    box-shadow: var(--shadow-soft);
}

/* primary CTA */
.btn.primary{
    background:linear-gradient(
        180deg,
        #b5fff4, #7edbcd);
        border-color: rgba(121, 219, 204, 0.95);
        box-shadow: 0 12px 22px rgba(88,199,183,0.24);
}

.btn.primary:hover{
    box-shadow: 0 16px 28px rgba(88,199,183,0.32);
}

/* photo */
.hero-photo{
    width: 320px;
    height: 320px;
    border-radius: 50%;
    overflow: hidden;

    margin-left: auto;
    border: 2px solid var(--stroke);
    background: var(--panel);
    box-shadow: var(--shadow);
}

/* ---------- Worked on ---------- */
.worked{
    padding: 5px 18px 30px;
    background:linear-gradient(
        300deg,
        hsla(173, 100%, 95%, 0.757), #fffffff8); 
    border-radius: 40px;
    border: 1px solid var(--stroke);
    box-shadow: 0 10px 10px rgba(27, 30, 39, 0.08),
    inset 0 1px 0 rgba(255, 255, 255, 0.9);
}

.worked-title{
    margin: 30px 20px 20px;
    color: #1d1d1dc6;
    font-size: 20px;
    letter-spacing: 0.03em;
}

.brand-row{
    list-style: none;
    padding: 0;

    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: 10px;
    letter-spacing: 0.03em;
}

/* Glassy Pills */
.brand{
    padding: 10px 10px;
    border-radius: 999px;

    border: 1px solid var(--stroke);
    background: linear-gradient(
        180deg,
        #ffffff,
        #ebfffdd7
    );

    color: #4a4d52;
    text-align: center;
    font-size: 12px;

    box-shadow: 0 5px 40px rgba(15,23,42,0.08),
    inset 0 2px 0 rgba(255, 255, 255, 0.9);
    
    transition:transform 160ms ease, box-shadow 160ms ease, background-color 160ms ease, border-color 160ms ease;
}

.brand:hover{
    transform: translateY(-1px);
    border-color: rgba(131, 232, 216, 0.842);
    box-shadow: 0 18px 34px rgba(15,23,42,0.10);
}

/* ---------- Sections ---------- */
.section{
    padding: 64px 0;
}

.section.alt{
    background: transparent;
    padding: 40px 0;
}
.alt-box{
    padding: 30px 30px 80px;
    background: rgba(66, 227, 200, 0.232);
    border-radius: 50px;
    box-shadow: 0 20px 40px rgba(41, 45, 53, 0.169);
}

.container{
    width: var(--container);
}

.section-head{
    display: flex;
    flex-direction: column;
    justify-content: center;
    text-align: center;

    margin-bottom: 40px;
}

.section-head h2{
    margin: 0 0 10px;
    margin-top: 5px;
    font-size: 30px;
}

.sub{
    margin: 0 auto;
    margin-top: 6px;
    max-width: 920px;
    color: #64748b;
}

/* ---------- Highlights ---------- */

.highlight-grid{
    display: grid;
    grid-template-columns: repeat (3, minmax(0, 1fr));
    gap: 22px;
}

.highlight{
    border: 1px solid rgba(15,23,42,0.10);
    border-radius: 30px;
    padding: 22px;
    background: rgba(255, 255, 255, 0.08);
    box-shadow: 0 10px 24px rgba(15,23,42,0.06);
    inset: 0 1px 0 rgba(255, 255, 255, 0.9);
    transition: transform 160ms ease, box-shadow 160ms ease, border-color 160ms ease;
}

.highlight:hover{
  transform: translateY(-2px);
  box-shadow: 0 16px 34px rgba(15,23,42,0.10);
  border-color: rgba(15,23,42,0.16);
}

.highlight h3{ margin: 0 0 10px; }
.highlight p{ margin: 0; color: #334155; }



/* ---------- Cards (Case Studies) ---------- */
.card-grid{
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 18px;
}

.card{
    border-radius: 18px;
    padding: 0 0 32px;
    overflow: hidden;

    border: 1px solid var(--stroke);
    background: var(--panel);
    box-shadow: var(--shadow-soft);

    transition:transform 180ms ease, box-shadow 180ms ease, background-color 180ms ease, border-color 160ms ease;
}

.card:hover{
    transform: translateY(-2px);
    box-shadow: var(--shadow);
    border-color: rgba(143,211,200,0.45);
}

.card-media img{
    width: 100%;
    height: 220px;
    object-fit: cover;
}

.card-body{
    padding: 4px 25px 18px;
}


.tag{
    display: inline-flex;
    align-items: center;
    width: auto;
    margin-top: 10px;
    font-size: 12px;
    padding: 6px 10px;
    border-radius: 999px;

    font-size: 13px;
    line-height: 1.2;
    white-space: nowrap;

    border: 1px solid rgba(143,211,200,0.70);
    background: rgba(143,211,200,0.22);
    color: #0f172a;
}

/* ---------- Foundations ---------- */

.foundation-grid{
    display: grid;
    grid-template-columns: repeat(3,1fr);
    gap: 16px;
}

.foundation{
    border-radius: 18px;
    border: 1px solid var(--stroke);
    background: var(--panel);
    padding: 16px;
    box-shadow: var(--shadow-soft);
}

.foundation h3{
    margin: 0 0 8px;
    font-size: 16px;
}

.foundation p{
    font-size: 14.5px;
    color: #6b6b6b;
}


/* ---------- Form ---------- */
.form{
    max-width: 860px;
    margin: 0 auto;
    padding: 18px;

    border-radius: 18px;
    border: 1px solid var(--stroke);
    background: rgba(255, 255, 255, 0.23);
    box-shadow: var(--shadow);
}

.form-box{
    padding: 30px 30px 80px;
    background: rgba(66, 227, 200, 0.232);
    border-radius: 50px;
    box-shadow: 0 20px 40px rgba(41, 45, 53, 0.169);
}

.form-box:hover{
  transform: translateY(-2px);
  box-shadow: 0 16px 34px rgba(15,23,42,0.10);
  border-color: rgba(15,23,42,0.16);
}

.form-row{
    display: grid;
    grid-template-columns: 1fr;
    gap: 14px;
}

.field{
    display: flex;
    flex-direction: column;
    gap: 8px;
    margin-bottom: 12px;
}

label{
    font-weight: 800;
    font-size: 13px;
    color: #303030;
}

input, textarea{
    box-sizing: border-box;
    font: inherit;
    color: #1c1c1c;

    padding: 12px 12px;
    border-radius: 25px;
    
    border: 1px solid var(--stroke);
    background: #ffffffbc;
    outline: none;
}

    input:focus, textarea:focus{
        border-color: rgba(143,211,200,0.90);
        box-shadow: 0 0 0 4px rgba(143,211,200,0.22);
    }

    textarea{
        min-height: 130px;
        resize: vertical;
    }

    .form-actions{
        display: flex;
        justify-content: flex-end;
        margin-top: 6px;
    }

   /* ---------- Footer ---------- */
   .footer{
    padding: 20px 0;
    border-top: 1px solid var(--stroke);
    background: #fdffff;
   }

   .footer-inner{
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 12px;
    flex-wrap: wrap;

    color: #323232;
    font-size: 14px;
   }

   .footer a{
    text-decoration: none;
    color: #323232;
   }

   .footer a:hover{
    color: var(--mint-deep);
   }
   
   /* ---------- Responsive ---------- */
@media (max-width: 980px){
  .hero{
    grid-template-columns: 1fr;
    text-align: left;
  }

  .hero-photo{
    margin: 20px auto 0;
    width: 360px;
    height: 360px;
  }

  .brand-row{ grid-template-columns: 1fr 1fr; }
  .card-grid{ grid-template-columns: 1fr; }
  .highlight-grid, .foundation-grid{ grid-template-columns: 1fr; }
}

/* mid breakpoint (tablet) */
@media (max-width: 768px){
  .hero{ padding: 48px 0 28px; }
  .hero-title{ font-size: 48px; }
  .top-nav{ padding: 14px 16px; }
  .top-links{ gap: 14px; }
}

@media (max-width: 520px){
  .hero-title{ font-size: 44px; }
  .top-links{ gap: 10px; }
  .top-nav{ padding: 14px 14px; }
}