/* ====================================================
   바다.news — Deep-Water Reading Vessel
   Color tokens (exact hex from DESIGN.md):
   #070B14 abyss · #0C1424 trench · #121C30 hull
   #1A2A4A navy · #6E7F8F patina · #8A94A6 steel
   #B4935D brass · #A3C9D9 phosphor
   Fonts: EB Garamond, Cormorant Garamond, Inter,
   Noto Serif KR, Lora (substitute family for body fallbacks)
   ==================================================== */

:root {
    --abyss: #070B14;
    --trench: #0C1424;
    --hull: #121C30;
    --navy: #1A2A4A;
    --steel: #8A94A6;
    --pearl: #D8DEE9;
    --foam: #EAF0F6;
    --patina: #6E7F8F;
    --brass: #B4935D;
    --phosphor: #A3C9D9;

    --font-display: 'EB Garamond', 'Cormorant Garamond', 'Lora', Georgia, serif;
    --font-body: 'EB Garamond', 'Lora', Georgia, serif;
    --font-ui: 'Inter', 'space', system-ui, sans-serif;
    --font-kr: 'Noto Serif KR', 'EB Garamond', serif;

    --measure: 66ch;
    --rail-pad: clamp(1.25rem, 4vw, 4rem);
    --section-pad: clamp(8rem, 18vh, 18rem);

    --ease: cubic-bezier(0.22, 0.61, 0.36, 1);
}

* { box-sizing: border-box; margin: 0; padding: 0; }

html, body {
    background: var(--abyss);
    color: var(--steel);
    font-family: var(--font-body);
    font-size: 18px;
    line-height: 1.7;
    font-feature-settings: "onum", "liga", "kern";
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    overflow-x: hidden;
}

body {
    min-height: 100vh;
    cursor: none;
    background:
        radial-gradient(ellipse at 50% 0%, rgba(26, 42, 74, 0.35) 0%, transparent 55%),
        linear-gradient(180deg, var(--trench) 0%, var(--abyss) 80%);
    background-attachment: fixed;
}

a { color: inherit; text-decoration: none; }

/* ============ Cursor canvas + dot ============ */
.bubble-canvas {
    position: fixed;
    inset: 0;
    width: 100vw;
    height: 100vh;
    pointer-events: none;
    z-index: 90;
}

.cursor-dot {
    position: fixed;
    top: 0;
    left: 0;
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background: radial-gradient(circle, var(--phosphor) 0%, rgba(163, 201, 217, 0) 70%);
    box-shadow: 0 0 18px rgba(163, 201, 217, 0.6);
    transform: translate(-50%, -50%);
    pointer-events: none;
    z-index: 100;
    transition: transform 0.06s linear, opacity 0.3s var(--ease);
    will-change: transform;
}

.cursor-dot.is-hover {
    width: 26px;
    height: 26px;
    background: radial-gradient(circle, rgba(180, 147, 93, 0.5) 0%, rgba(180, 147, 93, 0) 70%);
    box-shadow: 0 0 28px rgba(180, 147, 93, 0.5);
}

/* ============ Tidal wipe transition ============ */
.tidal-wipe {
    position: fixed;
    inset: 0;
    pointer-events: none;
    z-index: 200;
    background: linear-gradient(180deg,
        rgba(7, 11, 20, 0) 0%,
        rgba(12, 20, 36, 0.95) 50%,
        rgba(7, 11, 20, 0) 100%);
    transform: translateY(-110%);
    opacity: 0;
}

.tidal-wipe.is-active {
    animation: tidalWipe 480ms var(--ease) forwards;
}

@keyframes tidalWipe {
    0%   { transform: translateY(-110%); opacity: 0; }
    50%  { transform: translateY(0);     opacity: 1; }
    100% { transform: translateY(110%);  opacity: 0; }
}

/* ============ Masthead ============ */
.masthead {
    position: relative;
    padding: 2.25rem var(--rail-pad) 0;
    z-index: 5;
}

.masthead__inner {
    display: flex;
    justify-content: space-between;
    align-items: baseline;
    max-width: 1320px;
    margin: 0 auto;
}

.masthead__wordmark {
    font-family: var(--font-kr);
    font-size: clamp(1.75rem, 3vw, 2.5rem);
    color: var(--pearl);
    letter-spacing: -0.01em;
    display: inline-flex;
    align-items: baseline;
    gap: 0.05em;
    transition: color 240ms var(--ease);
}

.masthead__wordmark:hover { color: var(--foam); }

.masthead__wordmark-kr {
    font-weight: 500;
    letter-spacing: 0.06em;
}

.masthead__wordmark-dot {
    color: var(--brass);
    font-weight: 400;
}

.masthead__wordmark-en {
    font-family: var(--font-display);
    font-style: italic;
    font-weight: 400;
    color: var(--steel);
    font-size: 0.7em;
    margin-left: 0.05em;
}

.masthead__right {
    display: flex;
    align-items: baseline;
    gap: 0.6rem;
    font-family: var(--font-ui);
    font-size: 0.72rem;
    text-transform: uppercase;
    letter-spacing: 0.18em;
    color: var(--patina);
}

.masthead__sep { color: var(--navy); }

.masthead__rule {
    height: 1px;
    background: var(--navy);
    max-width: 1320px;
    margin: 1.4rem auto 0;
}

.primary-nav {
    max-width: 1320px;
    margin: 0 auto;
    padding: 1rem 0 1.25rem;
}

.primary-nav__list {
    list-style: none;
    display: flex;
    gap: 2.4rem;
    align-items: center;
    font-family: var(--font-ui);
    font-size: 0.72rem;
    letter-spacing: 0.22em;
    text-transform: uppercase;
    color: var(--patina);
}

.primary-nav__spacer { flex: 1; }

.primary-nav__link {
    position: relative;
    padding: 0.4rem 0;
    transition: color 240ms var(--ease);
    border-bottom: 1px solid transparent;
}

.primary-nav__link::after {
    content: '';
    position: absolute;
    left: 0;
    bottom: -2px;
    height: 1px;
    width: 0;
    background: var(--brass);
    transition: width 220ms var(--ease);
}

.primary-nav__link:hover {
    color: var(--foam);
}

.primary-nav__link:hover::after { width: 100%; }

.primary-nav__search {
    background: transparent;
    border: 1px solid var(--navy);
    color: var(--patina);
    padding: 0.4rem 0.9rem;
    font: inherit;
    text-transform: uppercase;
    letter-spacing: 0.22em;
    font-size: 0.7rem;
    cursor: none;
    transition: border-color 240ms var(--ease), color 240ms var(--ease);
    display: inline-flex;
    align-items: center;
    gap: 0.6rem;
}

.primary-nav__search kbd {
    font-family: var(--font-ui);
    font-size: 0.65rem;
    color: var(--brass);
    background: transparent;
    border: 1px solid var(--navy);
    padding: 0 0.3rem;
    border-radius: 2px;
    letter-spacing: 0;
}

.primary-nav__search:hover {
    border-color: var(--brass);
    color: var(--foam);
}

.search-bar {
    max-width: 1320px;
    margin: 0 auto;
    overflow: hidden;
    max-height: 0;
    opacity: 0;
    transition: max-height 360ms var(--ease), opacity 200ms var(--ease), margin 360ms var(--ease);
    border-top: 1px solid transparent;
}

.search-bar.is-open {
    max-height: 100px;
    opacity: 1;
    margin-top: 0.4rem;
    padding: 1rem 0;
    border-top: 1px solid var(--navy);
}

.search-bar__input {
    width: 100%;
    background: transparent;
    border: none;
    outline: none;
    color: var(--pearl);
    font-family: var(--font-display);
    font-style: italic;
    font-size: 1.5rem;
    padding: 0.5rem 0;
}

.search-bar__hint {
    display: block;
    font-family: var(--font-ui);
    font-size: 0.65rem;
    text-transform: uppercase;
    letter-spacing: 0.22em;
    color: var(--patina);
    margin-top: 0.3rem;
}

/* ============ Main / Strata ============ */
.main {
    max-width: 1320px;
    margin: 0 auto;
    padding: 0 var(--rail-pad);
    position: relative;
    z-index: 2;
}

.stratum {
    position: relative;
    padding: var(--section-pad) 0;
    border-top: 1px solid transparent;
}

.stratum--surface { padding-top: clamp(6rem, 12vh, 12rem); }

.stratum__label {
    position: absolute;
    top: 4rem;
    left: 0;
    display: flex;
    align-items: baseline;
    gap: 0.8rem;
    font-family: var(--font-ui);
    font-size: 0.65rem;
    text-transform: uppercase;
    letter-spacing: 0.3em;
    color: var(--patina);
}

.stratum__index {
    color: var(--brass);
    font-family: var(--font-display);
    font-style: italic;
    font-size: 0.95rem;
    letter-spacing: 0.05em;
}

/* ============ Kicker ============ */
.kicker {
    font-family: var(--font-ui);
    font-size: 0.7rem;
    letter-spacing: 0.28em;
    text-transform: uppercase;
    color: var(--patina);
    margin-bottom: 1.4rem;
}

.kicker__label {
    color: var(--brass);
    margin-right: 0.4rem;
}

/* ============ Lead (Surface) ============ */
.lead {
    max-width: 78ch;
    margin: 0 auto;
    text-align: center;
    padding-top: clamp(8rem, 22vh, 16rem);
    padding-bottom: clamp(6rem, 16vh, 12rem);
    position: relative;
}

.lead__breath {
    height: 14vh;
}

.lead__breath--bottom { height: 12vh; }

.lead__headline {
    font-family: var(--font-display);
    font-weight: 400;
    color: var(--pearl);
    font-size: clamp(2.4rem, 5.4vw, 4.6rem);
    line-height: 1.12;
    letter-spacing: -0.012em;
    margin: 0 auto 2rem;
    max-width: 22ch;
    transition: color 240ms var(--ease), transform 360ms var(--ease), letter-spacing 360ms var(--ease);
}

.lead__headline:hover {
    color: var(--foam);
    transform: translateY(-2px);
    letter-spacing: -0.022em;
}

.lead__deck {
    font-family: var(--font-display);
    font-style: italic;
    font-size: clamp(1.05rem, 1.6vw, 1.35rem);
    color: var(--steel);
    max-width: 50ch;
    margin: 0 auto 2.5rem;
    line-height: 1.55;
}

/* ============ Byline ============ */
.byline {
    display: inline-flex;
    align-items: center;
    gap: 1rem;
    font-family: var(--font-ui);
    font-size: 0.7rem;
    text-transform: uppercase;
    letter-spacing: 0.22em;
    color: var(--patina);
}

.byline__name { color: var(--steel); }

.byline__sep {
    width: 18px;
    height: 1px;
    background: var(--navy);
    display: inline-block;
}

/* ============ Botanical motif ============ */
.botanical {
    display: block;
    margin: 4rem auto 0;
    width: 60px;
    height: 80px;
    color: var(--patina);
    opacity: 0.55;
}

.botanical-divider {
    margin: clamp(4rem, 10vh, 9rem) auto;
    max-width: 600px;
    color: var(--patina);
    opacity: 0.6;
}

.botanical-divider__svg {
    width: 100%;
    height: auto;
    display: block;
}

.botanical-divider__svg path {
    stroke-dasharray: 800;
    stroke-dashoffset: 800;
}

.botanical-divider.in-view .botanical-divider__svg path {
    animation: drawIn 1600ms var(--ease) forwards;
}

@keyframes drawIn {
    to { stroke-dashoffset: 0; }
}

/* ============ Thermocline (Features) ============ */
.stratum--thermocline {
    padding-top: clamp(4rem, 10vh, 8rem);
}

.feature {
    max-width: 60ch;
    padding: clamp(3rem, 8vh, 7rem) 0;
    transition: opacity 360ms var(--ease), filter 360ms var(--ease);
}

.feature--left {
    margin-right: auto;
    margin-left: clamp(0px, 6vw, 6rem);
}

.feature--right {
    margin-left: auto;
    margin-right: clamp(0px, 6vw, 6rem);
}

.stratum--thermocline:hover .feature:not(:hover) {
    opacity: 0.55;
    filter: saturate(0.85);
}

.feature__headline {
    font-family: var(--font-display);
    font-weight: 400;
    color: var(--pearl);
    font-size: clamp(1.8rem, 3.2vw, 2.6rem);
    line-height: 1.18;
    letter-spacing: -0.008em;
    margin-bottom: 1.2rem;
    transition: color 240ms var(--ease), transform 360ms var(--ease);
}

.feature__headline:hover {
    color: var(--foam);
    transform: translateY(-2px);
}

.feature__deck {
    font-family: var(--font-display);
    font-style: italic;
    font-size: 1.1rem;
    color: var(--steel);
    margin-bottom: 1.5rem;
    line-height: 1.55;
}

.feature__more {
    display: inline-block;
    margin-top: 1.4rem;
    font-family: var(--font-ui);
    font-size: 0.72rem;
    text-transform: uppercase;
    letter-spacing: 0.22em;
    color: var(--patina);
    border-bottom: 1px solid var(--patina);
    padding-bottom: 2px;
    position: relative;
    overflow: hidden;
}

.feature__more::after {
    content: '';
    position: absolute;
    left: -100%;
    bottom: 0;
    width: 100%;
    height: 1px;
    background: var(--brass);
    transition: left 220ms var(--ease);
}

.feature__more:hover {
    color: var(--foam);
}

.feature__more:hover::after { left: 0; }

/* ============ Columns ============ */
.stratum--columns {
    padding-top: clamp(4rem, 10vh, 8rem);
}

.columns-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: clamp(3rem, 6vw, 6rem);
    max-width: 1100px;
    margin: 4rem auto 0;
}

.column {
    background: linear-gradient(180deg, rgba(18, 28, 48, 0.4) 0%, transparent 100%);
    padding: clamp(2rem, 4vw, 3.5rem);
    border-top: 1px solid var(--navy);
    position: relative;
}

.column__headline {
    font-family: var(--font-display);
    font-style: italic;
    font-weight: 500;
    color: var(--pearl);
    font-size: 1.6rem;
    margin-bottom: 1.6rem;
    line-height: 1.25;
}

.column__body {
    color: var(--steel);
    font-size: 1.02rem;
    line-height: 1.75;
    margin-bottom: 1.2rem;
    max-width: 60ch;
}

.dropcap {
    float: left;
    font-family: var(--font-display);
    font-style: italic;
    font-weight: 500;
    color: var(--brass);
    font-size: 4.2rem;
    line-height: 0.85;
    padding: 0.4rem 0.5rem 0 0;
    margin-top: 0.1rem;
    opacity: 0;
    transform: translateY(8px);
    transition: opacity 800ms var(--ease), transform 800ms var(--ease);
}

.column.in-view .dropcap {
    opacity: 1;
    transform: translateY(0);
}

.column__footer {
    margin-top: 1.5rem;
    padding-top: 1rem;
    border-top: 1px solid var(--navy);
    font-family: var(--font-ui);
    font-size: 0.72rem;
    text-transform: uppercase;
    letter-spacing: 0.22em;
    color: var(--patina);
}

/* ============ Abyssal Archive ============ */
.stratum--abyssal {
    padding-top: clamp(4rem, 10vh, 8rem);
    padding-bottom: clamp(8rem, 16vh, 14rem);
}

.abyssal__intro {
    font-family: var(--font-display);
    font-style: italic;
    color: var(--steel);
    font-size: 1.1rem;
    max-width: 50ch;
    margin: 3rem 0 4rem;
}

.archive-list {
    list-style: none;
    border-top: 1px solid var(--navy);
    max-width: 900px;
}

.archive-item {
    display: grid;
    grid-template-columns: 90px 1fr 120px;
    align-items: baseline;
    gap: 1.5rem;
    padding: 1.5rem 0;
    border-bottom: 1px solid var(--navy);
    font-family: var(--font-display);
    transition: background 360ms var(--ease), padding-left 360ms var(--ease), opacity 360ms var(--ease);
    opacity: 0.85;
}

.archive-item:hover {
    padding-left: 1rem;
    opacity: 1;
    background: linear-gradient(90deg, rgba(26, 42, 74, 0.25) 0%, transparent 80%);
}

.archive-item__num {
    font-family: var(--font-ui);
    font-size: 0.7rem;
    text-transform: uppercase;
    letter-spacing: 0.22em;
    color: var(--brass);
}

.archive-item__title {
    color: var(--pearl);
    font-size: 1.15rem;
    font-style: italic;
    font-weight: 400;
    transition: color 240ms var(--ease);
    border-bottom: 1px solid transparent;
    padding-bottom: 2px;
}

.archive-item__title:hover {
    color: var(--foam);
    border-bottom-color: var(--brass);
}

.archive-item__date {
    font-family: var(--font-ui);
    font-size: 0.7rem;
    text-transform: uppercase;
    letter-spacing: 0.18em;
    color: var(--patina);
    text-align: right;
}

.archive-more {
    margin-top: 3rem;
    background: transparent;
    border: 1px solid var(--navy);
    color: var(--patina);
    padding: 1rem 2.4rem;
    font-family: var(--font-ui);
    font-size: 0.72rem;
    text-transform: uppercase;
    letter-spacing: 0.28em;
    cursor: none;
    transition: border-color 240ms var(--ease), color 240ms var(--ease), background 240ms var(--ease);
}

.archive-more:hover {
    border-color: var(--brass);
    color: var(--foam);
    background: rgba(180, 147, 93, 0.08);
}

.archive-status {
    margin-top: 1rem;
    font-family: var(--font-ui);
    font-size: 0.7rem;
    text-transform: uppercase;
    letter-spacing: 0.22em;
    color: var(--patina);
    min-height: 1.2em;
}

/* ============ Colophon ============ */
.colophon {
    padding: 6rem var(--rail-pad) 4rem;
    color: var(--patina);
    background: var(--abyss);
    position: relative;
    z-index: 2;
}

.colophon__rule {
    height: 1px;
    background: var(--navy);
    max-width: 1320px;
    margin: 0 auto 4rem;
}

.colophon__inner {
    max-width: 1320px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 3rem;
}

.colophon__col {
    font-family: var(--font-display);
    font-size: 0.95rem;
}

.colophon__label {
    font-family: var(--font-ui);
    font-size: 0.68rem;
    text-transform: uppercase;
    letter-spacing: 0.3em;
    color: var(--brass);
    margin-bottom: 1.2rem;
}

.colophon__line {
    color: var(--steel);
    margin-bottom: 0.4rem;
    font-style: italic;
}

.colophon__bottom {
    max-width: 1320px;
    margin: 4rem auto 0;
    padding-top: 2rem;
    border-top: 1px solid var(--navy);
    display: flex;
    justify-content: space-between;
    font-family: var(--font-ui);
    font-size: 0.66rem;
    text-transform: uppercase;
    letter-spacing: 0.3em;
    color: var(--patina);
}

/* ============ Reveal-on-scroll ============ */
[data-reveal] {
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 1000ms var(--ease), transform 1000ms var(--ease);
}

[data-reveal].is-visible {
    opacity: 1;
    transform: translateY(0);
}

/* ============ Responsive ============ */
@media (max-width: 720px) {
    body { cursor: auto; }
    .cursor-dot, .bubble-canvas { display: none; }
    .primary-nav__list { gap: 1.2rem; flex-wrap: wrap; font-size: 0.65rem; }
    .primary-nav__search { display: none; }
    .stratum__label { position: static; margin-bottom: 2rem; }
    .archive-item { grid-template-columns: 70px 1fr; }
    .archive-item__date { grid-column: 2; text-align: left; }
    .colophon__bottom { flex-direction: column; gap: 0.6rem; }
    .feature--left, .feature--right { margin-left: 0; margin-right: 0; }
}

@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after {
        animation-duration: 0.001ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.001ms !important;
    }
    .bubble-canvas, .cursor-dot { display: none; }
    body { cursor: auto; }
}