/* ─────────────────────────────────────────────────────────────
   JAYANTH RAMAKRISHNAN — Portfolio v2 (Medium-style)
   Fonts: Playfair Display (headings) · Lora (body) · Caveat (accent)
───────────────────────────────────────────────────────────────*/
*,
*::before,
*::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

:root {
    --bg: #fdfcf7;
    --bg-alt: #f5f3ec;
    --ink: #111010;
    --ink-mid: #444;
    --ink-light: #888;
    --border: #d8d5cc;
    --accent: #111;
    --font-head: 'Playfair Display', Georgia, serif;
    --font-body: 'Lora', Georgia, serif;
    --font-hand: 'Caveat', cursive;
    --font-ui: 'Inter', system-ui, sans-serif;
    --col: 680px;
    --pad-x: clamp(20px, 6vw, 80px);
    --ease: cubic-bezier(0.4, 0, 0.2, 1);
    --ease-smooth: cubic-bezier(0.25, 0.46, 0.45, 0.94);
    --ease-formal: cubic-bezier(0.35, 0, 0.65, 1);
    --ease-swift: cubic-bezier(0.17, 0.67, 0.83, 0.67);
}

html {
    scroll-behavior: smooth;
}

body {
    background: var(--bg);
    color: var(--ink);
    font-family: var(--font-body);
    font-size: clamp(17px, 1.5vw, 19px);
    line-height: 1.8;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
}

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

::-webkit-scrollbar {
    width: 5px;
}

/* ── LOADING <jayanth/> ───────────────────────────────────── */
#loading {
    position: fixed;
    inset: 0;
    z-index: 9000;
    background: var(--bg);
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
    transition: opacity 0.7s var(--ease);
}
#loading.done {
    opacity: 0;
    pointer-events: none;
}

/* The whole tag — pops in on load */
#load-tag {
    display: flex;
    align-items: baseline;
    opacity: 0;
    animation: tag-pop 0.35s var(--ease) 0.05s forwards;
}
@keyframes tag-pop {
    0%   { opacity: 0; transform: scale(0.6); }
    75%  { transform: scale(1.06); }
    100% { opacity: 1; transform: scale(1); }
}

/* < and /> brackets */
#load-lt, #load-slash {
    font-family: var(--font-ui);
    font-size: clamp(2.8rem, 8vw, 5.5rem);
    font-weight: 300;
    color: var(--ink);
    letter-spacing: -0.02em;
}

/* Tamil name — hidden at first, expands in */
#load-name {
    font-family: 'Noto Sans Tamil', system-ui, sans-serif;
    font-size: clamp(2rem, 5.5vw, 4rem);
    font-weight: 400;
    color: var(--ink);
    max-width: 0;
    overflow: hidden;
    opacity: 0;
    white-space: nowrap;
    /* slight padding so letters don't touch brackets */
    padding: 0 6px;
    transition: max-width 0.75s cubic-bezier(0.4, 0, 0.2, 1),
                opacity    0.6s  var(--ease);
}
#load-name.visible {
    max-width: 480px;
    opacity: 1;
}

/* Exit: whole tag fades + gently scales down into the page */
#loading.exiting #load-tag {
    animation: tag-land 0.45s var(--ease) forwards;
}
@keyframes tag-land {
    0%   { opacity: 1; transform: scale(1) translateY(0); }
    100% { opacity: 0; transform: scale(0.92) translateY(8px); }
}

::-webkit-scrollbar-track {
    background: var(--bg);
}

::-webkit-scrollbar-thumb {
    background: var(--border);
    border-radius: 3px;
}

:focus-visible {
    outline: 2px dashed var(--ink-light);
    outline-offset: 4px;
}

/* ── CONTAINER ────────────────────────────────────────────── */
.container {
    max-width: 1080px;
    margin: 0 auto;
    padding: 0 var(--pad-x);
}

.article-container {
    max-width: calc(var(--col) + var(--pad-x) * 2);
}

/* ── BOOKMARK NAV ─────────────────────────────────────────── */
#bookmark-nav {
    position: fixed;
    /* 3/4 across from left = 75% */
    left: 75%;
    top: 0;
    z-index: 800;
    display: flex;
    flex-direction: column;
    align-items: center;
}

#bookmark-toggle {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 5px;
    width: 48px;
    padding: 14px 0 18px;
    background: var(--ink);
    border: none;
    cursor: pointer;
    /* Bookmark shape: pointy bottom */
    clip-path: polygon(0 0, 100% 0, 100% 75%, 50% 100%, 0 75%);
    transition: background 0.25s var(--ease-smooth);
    will-change: background;
}

#bookmark-toggle:hover {
    background: #333;
}

.v-line {
    display: block;
    width: 2px;
    height: 16px;
    background: var(--bg);
    border-radius: 1px;
    transition: transform 0.25s var(--ease), opacity 0.2s var(--ease);
}

/* Animate vertical lines to X on open */
#bookmark-toggle[aria-expanded="true"] .v-line:nth-child(1) {
    transform: rotate(45deg) translate(4px, 5px);
    transition: transform 0.35s var(--ease-formal);
}

#bookmark-toggle[aria-expanded="true"] .v-line:nth-child(2) {
    opacity: 0;
    transform: scaleY(0);
    transition: opacity 0.25s var(--ease-formal), transform 0.3s var(--ease-formal);
}

#bookmark-toggle[aria-expanded="true"] .v-line:nth-child(3) {
    transform: rotate(-45deg) translate(4px, -5px);
    transition: transform 0.35s var(--ease-formal);
}

#bookmark-menu {
    background: var(--ink);
    min-width: 160px;
    overflow: hidden;
    max-height: 0;
    opacity: 0;
    transition: max-height 0.25s var(--ease), opacity 0.2s var(--ease);
    pointer-events: none;
    /* Align right edge under bookmark */
    margin-left: calc(160px - 48px);
}

#bookmark-menu.open {
    max-height: 220px;
    opacity: 1;
    pointer-events: all;
}

.bm-link {
    display: block;
    padding: 13px 22px;
    font-family: var(--font-ui);
    font-size: 0.85rem;
    color: var(--bg);
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    letter-spacing: 0.04em;
    transition: background 0.15s, padding-left 0.15s;
}

.bm-link:last-child {
    border-bottom: none;
}

.bm-link:hover {
    background: rgba(255, 255, 255, 0.1);
    padding-left: 30px;
}

/* ── </> CORNER ───────────────────────────────────────────── */
#code-corner {
    position: fixed;
    bottom: 20px;
    right: 20px;
    z-index: 700;
    font-family: var(--font-ui);
    font-size: 1rem;
    font-weight: 400;
    color: var(--ink-mid);
    letter-spacing: 0.02em;
    opacity: 0;
    transform: translateY(8px);
    transition: opacity 0.4s var(--ease), transform 0.4s var(--ease);
    display: flex;
    align-items: center;
    gap: 0;
    background: var(--bg);
    border: 1px solid var(--border);
    padding: 8px 13px;
    border-radius: 4px;
    box-shadow: 0 2px 12px rgba(0, 0, 0, 0.08);
    pointer-events: none;
    user-select: none;
}

#code-corner.show {
    opacity: 1;
    transform: translateY(0);
}

#cc-open {
    color: var(--ink-light);
}

#cc-slash {
    color: var(--ink);
    font-weight: 600;
    margin: 0 1px;
}

#cc-close {
    color: var(--ink-light);
}

/* Blinking cursor */
#cc-cursor {
    display: inline-block;
    width: 2px;
    height: 14px;
    background: var(--ink-mid);
    margin-left: 3px;
    animation: blink 1.1s step-end infinite;
    border-radius: 1px;
}

@keyframes blink {
    0%,
    100% {
        opacity: 1;
    }

    48%,
    52% {
        opacity: 0;
    }
}

/* ── HERO ─────────────────────────────────────────────────── */
#hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding-top: 40px;
    padding-bottom: 60px;
}

#hero-inner {
    max-width: var(--col);
}

/* Author row: circular avatar + name side by side */
#hero-author {
    display: flex;
    align-items: center;
    gap: 14px;
    margin-bottom: 28px;
}

#hero-avatar {
    width: 64px;
    height: 64px;
    border-radius: 50%;
    object-fit: cover;
    object-position: center top;
    border: 2px solid var(--border);
    flex-shrink: 0;
    box-shadow: 0 1px 6px rgba(0,0,0,0.09);
}

#hero-eyebrow {
    font-family: var(--font-hand);
    font-size: clamp(1.1rem, 2vw, 1.4rem);
    color: var(--ink-light);
    letter-spacing: 0.04em;
    /* margin handled by parent flex gap */
    margin-bottom: 0;
}

#hero-name {
    font-family: var(--font-head);
    font-size: clamp(3.5rem, 9vw, 7rem);
    font-weight: 900;
    line-height: 1.05;
    letter-spacing: -0.02em;
    margin-bottom: 28px;
    color: var(--ink);
}

#hero-sub {
    font-family: var(--font-body);
    font-size: clamp(1.05rem, 1.6vw, 1.2rem);
    color: var(--ink-mid);
    line-height: 1.75;
    margin-bottom: 40px;
    max-width: 560px;
}

#social-links {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
}

.social-pill {
    display: inline-flex;
    align-items: center;
    gap: 7px;
    font-family: var(--font-ui);
    font-size: 0.82rem;
    color: var(--ink-mid);
    border: 1px solid var(--border);
    padding: 7px 14px;
    border-radius: 100px;
    transition: border-color 0.18s, color 0.18s, background 0.18s;
    letter-spacing: 0.01em;
}

.social-pill:hover {
    border-color: var(--ink);
    color: var(--ink);
    background: var(--bg-alt);
}

#hero-divider {
    margin-top: 80px;
    height: 1px;
    background: var(--border);
    position: relative;
    overflow: visible;
}

#hero-divider::after {
    content: '✏';
    position: absolute;
    right: 0;
    top: 50%;
    transform: translateY(-50%);
    font-size: 1rem;
    color: var(--ink-light);
    background: var(--bg);
    padding: 0 8px;
}

/* ── SECTIONS ─────────────────────────────────────────────── */
.content-section {
    padding: clamp(64px, 10vw, 120px) 0;
}

.alt-bg {
    background: var(--bg-alt);
}

.label {
    display: block;
    font-family: var(--font-ui);
    font-size: 0.75rem;
    letter-spacing: 0.14em;
    color: var(--ink-light);
    text-transform: uppercase;
    margin-bottom: 16px;
}

.section-title {
    font-family: var(--font-head);
    font-size: clamp(2rem, 5vw, 3.2rem);
    font-weight: 700;
    line-height: 1.15;
    margin-bottom: 32px;
    color: var(--ink);
    font-style: italic;
}

.section-sub {
    font-family: var(--font-body);
    font-size: clamp(1rem, 1.5vw, 1.1rem);
    color: var(--ink-mid);
    margin-bottom: 48px;
    max-width: 560px;
}

/* Prose */
.prose p {
    color: var(--ink-mid);
    margin-bottom: 20px;
    font-size: clamp(1.02rem, 1.4vw, 1.1rem);
}

.prose p:last-child {
    margin-bottom: 0;
}

.prose em {
    font-style: italic;
    color: var(--ink);
    border-bottom: 1px solid var(--border);
}

/* Do list */
.do-list {
    list-style: none;
    margin-top: 32px;
    border-top: 1px solid var(--border);
}

.do-item {
    display: flex;
    gap: 20px;
    padding: 24px 0;
    border-bottom: 1px solid var(--border);
}

.do-marker {
    font-family: var(--font-head);
    font-size: 1.4rem;
    color: var(--ink-light);
    flex-shrink: 0;
    margin-top: 2px;
}

.do-item strong {
    display: block;
    font-family: var(--font-head);
    font-size: 1.05rem;
    font-weight: 700;
    color: var(--ink);
    margin-bottom: 6px;
}

.do-item p {
    font-family: var(--font-body);
    font-size: 0.95rem;
    color: var(--ink-mid);
    line-height: 1.65;
}

/* ── PROJECT CARDS ────────────────────────────────────────── */
.card-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(min(100%, 300px), 1fr));
    gap: 1px;
    border: 1px solid var(--border);
    margin-top: 48px;
}

.project-card {
    padding: clamp(28px, 4vw, 44px);
    border-right: 1px solid var(--border);
    background: var(--bg);
    display: flex;
    flex-direction: column;
    gap: 12px;
    transition: background 0.2s;
}

.project-card:last-child {
    border-right: none;
}

.project-card:hover {
    background: var(--bg-alt);
}

.card-meta {
    display: flex;
    justify-content: space-between;
    align-items: baseline;
    margin-bottom: -4px;
}

.card-tag {
    font-family: var(--font-ui);
    font-size: 0.72rem;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    color: var(--ink-light);
}

.card-status {
    font-family: var(--font-ui);
    font-size: 0.7rem;
    font-style: italic;
    color: var(--ink-light);
    opacity: 0.8;
}

.project-card h3 {
    font-family: var(--font-head);
    font-size: clamp(1.2rem, 2vw, 1.5rem);
    font-weight: 700;
    color: var(--ink);
    line-height: 1.25;
}

.project-card p {
    font-family: var(--font-body);
    font-size: 0.95rem;
    color: var(--ink-mid);
    line-height: 1.7;
}

.card-summary {
    flex: 1;
}

/* Card details (hidden by default, expands) */
.card-details-wrapper {
    display: grid;
    grid-template-rows: 0fr;
    transition: grid-template-rows 0.35s var(--ease);
}

.card-details-wrapper.expanded {
    grid-template-rows: 1fr;
}

.card-details {
    overflow: hidden;
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.card-details p:first-child {
    margin-top: 8px;
}

.card-tech {
    font-family: var(--font-ui);
    font-size: 0.8rem;
    color: var(--ink);
    padding-top: 12px;
    border-top: 1px solid var(--border);
}

.git-link {
    font-family: var(--font-ui);
    font-size: 0.85rem;
    color: var(--ink);
    font-weight: 500;
    margin-top: 4px;
    display: inline-block;
    transition: color 0.18s;
}

.git-link:hover {
    color: var(--accent);
}

.card-expand-btn {
    font-family: var(--font-ui);
    font-size: 0.85rem;
    color: var(--ink);
    font-weight: 500;
    letter-spacing: 0.02em;
    transition: letter-spacing 0.18s, color 0.18s;
    background: transparent;
    border: none;
    padding: 0;
    cursor: pointer;
    text-align: left;
    margin-top: auto;
}

.card-expand-btn:hover {
    letter-spacing: 0.08em;
    color: var(--accent);
}

.card-expand-btn.expanded {
    color: var(--ink-mid);
}

/* ── TIMELINE ─────────────────────────────────────────────── */
.timeline {
    margin-top: 40px;
    border-left: 1px solid var(--border);
    padding-left: clamp(24px, 4vw, 48px);
    display: flex;
    flex-direction: column;
    gap: 48px;
}

.timeline-item {
    position: relative;
}

.timeline-item::before {
    content: '';
    position: absolute;
    left: calc(-1 * clamp(24px, 4vw, 48px) - 4px);
    top: 6px;
    width: 8px;
    height: 8px;
    border-radius: 50%;
    border: 2px solid var(--border);
    background: var(--bg-alt);
}

.timeline-year {
    display: block;
    font-family: var(--font-ui);
    font-size: 0.78rem;
    letter-spacing: 0.1em;
    color: var(--ink-light);
    margin-bottom: 8px;
    text-transform: uppercase;
}

.timeline-role {
    font-family: var(--font-head);
    font-size: clamp(1.2rem, 2.5vw, 1.55rem);
    font-weight: 700;
    color: var(--ink);
    margin-bottom: 4px;
}

.timeline-org {
    display: block;
    font-family: var(--font-body);
    font-size: 0.9rem;
    font-style: italic;
    color: var(--ink-light);
    margin-bottom: 12px;
}

.timeline-desc {
    font-family: var(--font-body);
    font-size: 0.97rem;
    color: var(--ink-mid);
    line-height: 1.75;
}

/* ── FOOTER / CONTACT ────────────────────────────────────── */
#contact {
    padding: clamp(64px, 10vw, 120px) 0 clamp(40px, 6vw, 80px);
    border-top: 1px solid var(--border);
}

.footer-heading {
    font-family: var(--font-head);
    font-size: clamp(2.2rem, 6vw, 4.5rem);
    font-weight: 900;
    line-height: 1.1;
    margin-bottom: 12px;
    color: var(--ink);
}

/* ── CONTACT TWO-COLUMN GRID ─────────────────────────────── */
#contact-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: clamp(40px, 6vw, 80px);
    margin-top: 48px;
    align-items: start;
}

/* Left column */
#contact-info .footer-sub {
    font-family: var(--font-body);
    font-size: clamp(1rem, 1.5vw, 1.1rem);
    color: var(--ink-mid);
    margin-bottom: 36px;
    max-width: 340px;
}

/* Social links in contact */
#contact-socials {
    display: flex;
    flex-direction: column;
    gap: 0;
    margin-bottom: 40px;
    border-top: 1px solid var(--border);
}

.contact-social-link {
    display: flex;
    justify-content: space-between;
    align-items: baseline;
    padding: 14px 0;
    border-bottom: 1px solid var(--border);
    transition: padding-left 0.15s;
}

.contact-social-link:hover {
    padding-left: 6px;
}

.contact-social-name {
    font-family: var(--font-ui);
    font-size: 0.9rem;
    color: var(--ink);
    font-weight: 500;
}

.contact-social-handle {
    font-family: var(--font-ui);
    font-size: 0.8rem;
    color: var(--ink-light);
    letter-spacing: 0.02em;
}

#contact-location {
    margin-top: 4px;
}

#contact-location .label {
    margin-bottom: 10px;
}

#contact-location p {
    font-family: var(--font-body);
    font-size: 0.95rem;
    color: var(--ink-mid);
    line-height: 1.7;
    margin-bottom: 6px;
}

.contact-location-note {
    font-size: 0.85rem !important;
    color: var(--ink-light) !important;
    font-style: italic;
    margin-top: 8px !important;
}

/* ── CONTACT FORM ────────────────────────────────────────── */
#contact-form-wrap {
    display: flex;
    flex-direction: column;
    gap: 0;
}

.form-group {
    margin-bottom: 28px;
}

.form-label {
    display: block;
    font-family: var(--font-ui);
    font-size: 0.72rem;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    color: var(--ink-light);
    margin-bottom: 8px;
}

.form-input {
    width: 100%;
    background: transparent;
    border: none;
    border-bottom: 1px solid var(--border);
    padding: 8px 0;
    font-family: var(--font-body);
    font-size: 1rem;
    color: var(--ink);
    outline: none;
    border-radius: 0;
    transition: border-color 0.15s;
    -webkit-appearance: none;
}

.form-input::placeholder {
    color: var(--ink-light);
    font-style: italic;
}

.form-input:focus {
    border-bottom-color: var(--ink);
}

.form-textarea {
    resize: none;
    min-height: 120px;
    line-height: 1.7;
}

.form-submit {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    width: 100%;
    padding: 15px 28px;
    background: var(--ink);
    color: var(--bg);
    font-family: var(--font-ui);
    font-size: 0.9rem;
    letter-spacing: 0.06em;
    border: none;
    border-radius: 2px;
    cursor: pointer;
    margin-top: 8px;
    transition: background 0.15s;
}

.form-submit:hover:not(:disabled) {
    background: #2a2a2a;
}

.form-submit:disabled {
    opacity: 0.6;
    cursor: not-allowed;
}

/* Spinner inside button */
.form-submit-spinner {
    display: none;
    width: 14px;
    height: 14px;
    border: 2px solid rgba(255,255,255,0.35);
    border-top-color: #fff;
    border-radius: 50%;
    animation: spin 0.7s linear infinite;
}

.form-submit.loading .form-submit-spinner { display: block; }
.form-submit.loading .form-submit-label::after { content: '...'; }

@keyframes spin {
    to { transform: rotate(360deg); }
}

.form-error {
    font-family: var(--font-ui);
    font-size: 0.85rem;
    color: #c0392b;
    margin-top: 12px;
    min-height: 1.2em;
}

.form-success {
    text-align: center;
    padding: 40px 20px;
}

.form-success p {
    font-family: var(--font-head);
    font-size: 1.3rem;
    color: var(--ink);
    font-style: italic;
}

/* Footer bottom bar */
#footer-bottom {
    margin-top: 64px;
    padding-top: 24px;
    border-top: 1px solid var(--border);
}

.footer-credit {
    font-family: var(--font-hand);
    font-size: 0.95rem;
    color: var(--ink-light);
}

/* ── REVEAL ANIMATIONS ────────────────────────────────────── */
.reveal {
    opacity: 0;
    transform: translateY(18px);
    transition: opacity 0.45s var(--ease), transform 0.45s var(--ease);
}

.reveal.in {
    opacity: 1;
    transform: translateY(0);
}

/* ── RESPONSIVE ───────────────────────────────────────────── */
@media (max-width: 700px) {
    .card-grid {
        grid-template-columns: 1fr;
        border: none;
        gap: 0;
    }

    .project-card {
        border: 1px solid var(--border);
        border-radius: 2px;
    }

    .project-card:hover {
        background: var(--bg);
    }

    #social-links {
        gap: 8px;
    }

    .social-pill {
        font-size: 0.78rem;
        padding: 6px 12px;
    }

    #pencil-corner {
        bottom: 12px;
        right: 12px;
    }
}

@media (max-width: 480px) {
    #hero-name {
        font-size: clamp(2.8rem, 14vw, 4rem);
    }

    .footer-heading {
        font-size: clamp(1.8rem, 10vw, 2.8rem);
    }

    .timeline {
        padding-left: 20px;
        gap: 36px;
    }

    .do-item {
        gap: 14px;
    }
}

/* ── PRINT ─────────────────────────────────────────────────── */
@media print {

    #loading,
    #pencil-corner,
    #navbar {
        display: none;
    }

    body {
        background: white;
        color: black;
    }

    .content-section {
        page-break-inside: avoid;
    }
}

/* ── REDUCED MOTION ───────────────────────────────────────── */
@media (prefers-reduced-motion: reduce) {

    *,
    *::before,
    *::after {
        animation-duration: 0.001ms !important;
        transition-duration: 0.001ms !important;
    }

    .reveal {
        opacity: 1;
        transform: none;
    }
}