/* ============================================================
   MLG @ IIT PALAKKAD — UNIFIED THEME
   Paper & Ink / Teal design system.
   Loaded LAST so it overrides the legacy Bootstrap template CSS.
   Restyles the existing markup classes site-wide — no content
   changes required on the pages themselves.
   ============================================================ */

/* ─── DESIGN TOKENS ─────────────────────────────── */
:root {
    --ink:        #0f1923;
    --ink-soft:   #3a4a58;
    --ink-muted:  #7a8fa0;
    --paper:      #f7f5f0;
    --paper-warm: #ede9e1;
    --accent:     #14A085;
    --accent-dim: #0d7a65;
    --accent-glow:rgba(20,160,133,.12);
    --gold:       #c4930a;
    --rule:       #d8d2c6;
    --radius:     6px;
    --shadow-sm:  0 1px 4px rgba(15,25,35,.08);
    --shadow-md:  0 4px 20px rgba(15,25,35,.10);
    --shadow-lg:  0 12px 40px rgba(15,25,35,.14);
}

/* ─── BASE ──────────────────────────────────────── */
body {
    background: var(--paper) !important;
    color: var(--ink) !important;
    font-family: 'DM Sans', sans-serif !important;
    font-size: 15px;
    line-height: 1.65;
    -webkit-font-smoothing: antialiased;
}
#wrapper { background: var(--paper); }
a { color: var(--accent-dim); }
a:hover, a:focus { color: var(--accent); }

h1, h2, h3, h4, h5 { font-family: 'DM Serif Display', serif; }

/* ─── NAVBAR ────────────────────────────────────────────────
   ONE identical header on every page, matching the Journal Group
   page. All values forced with !important so they win over the
   per-page legacy sheets (style.css / styles.css / styles22.css).
   ──────────────────────────────────────────────────────────── */
.navbar.navbar-default.navbar-static-top,
header .navbar.navbar-default {
    background: var(--ink) !important;
    border: none !important;
    box-shadow: none !important;
    border-radius: 0 !important;
    margin-bottom: 0 !important;
}
header .navbar { min-height: 70px !important; padding: 18px 0 !important; }

/* Brand / logo — uniform natural size on every page */
.navbar.navbar-default .navbar-brand,
.navbar-default .navbar-brand,
header .navbar-default .navbar-brand {
    height: auto !important;
    margin-top: 13px !important;
    padding: 0 0 0 15px !important;
}
.navbar-brand img {
    height: 65px !important;
    width: auto !important;
    filter: brightness(1.1);
}

/* Menu — right aligned, on its own row (exactly the Journal Group layout) */
header .navbar-collapse ul.navbar-nav,
header .navbar-nav { float: right !important; margin-right: 0 !important; }
header .navbar-nav > li { padding-top: 70px !important; padding-bottom: 12px !important; }

.navbar-default .navbar-nav > li > a,
header .navbar-nav > li > a {
    color: rgba(255,255,255,.78) !important;
    font-family: 'DM Sans', sans-serif !important;
    font-size: 13px !important;
    font-weight: 500 !important;
    letter-spacing: .06em !important;
    text-transform: uppercase !important;
    line-height: 30px !important;
    margin-left: 20px !important;
    padding: 5px 0 6px !important;
    background: transparent !important;
    transition: color .2s;
}
.navbar-default .navbar-nav > li > a:hover,
.navbar-default .navbar-nav > li > a:focus,
.navbar-default .navbar-nav > li.active > a,
header .navbar-nav > li.active > a {
    color: var(--accent) !important;
    background: transparent !important;
}
.navbar-default .navbar-toggle { border-color: rgba(255,255,255,.3); margin-top: 24px; }
.navbar-default .navbar-toggle .icon-bar { background: #fff; }
.navbar-default .navbar-toggle:hover,
.navbar-default .navbar-toggle:focus { background: rgba(255,255,255,.08); }

@media (max-width: 767px) {
    header .navbar-nav > li { padding-top: 0 !important; }
    header .navbar-nav > li > a { margin-left: 0 !important; padding: 10px 15px !important; }
}

/* ─── HERO STRIP (#inner-headline) ──────────────── */
#inner-headline {
    background: linear-gradient(135deg, #0f1923 0%, #1a2e3b 60%, #0d2e28 100%) !important;
    padding: 56px 0 44px !important;
    position: relative;
    overflow: hidden;
    border: none !important;
}
#inner-headline::before {
    content: '';
    position: absolute;
    inset: 0;
    background: repeating-linear-gradient(
        -45deg, transparent, transparent 24px,
        rgba(20,160,133,.04) 24px, rgba(20,160,133,.04) 25px);
}
#inner-headline .container { position: relative; z-index: 1; }
#inner-headline .pageTitle,
#inner-headline .centered-text,
#inner-headline h2 {
    font-family: 'DM Serif Display', serif !important;
    font-size: clamp(28px, 4vw, 44px) !important;
    color: #fff !important;
    letter-spacing: -.01em;
    margin: 0 !important;
    text-indent: 0 !important;
    display: block !important;
}
#inner-headline .pageTitle::after,
#inner-headline .centered-text::after {
    content: '';
    display: block;
    width: 52px; height: 3px;
    background: var(--accent);
    margin-top: 12px;
    border-radius: 2px;
}

/* ─── WELCOME / CALL-TO-ACTION BAND (index) ─────── */
.callaction {
    background: var(--paper-warm) !important;
    border-bottom: 1px solid var(--rule);
    border-top: 1px solid var(--rule);
    padding: 40px 0 !important;
    box-shadow: none !important;
}
.callaction h1, .callaction .aligncenter h1 {
    font-family: 'DM Serif Display', serif !important;
    color: var(--ink) !important;
    font-size: clamp(26px, 3.5vw, 38px) !important;
    margin-bottom: 14px;
}
.callaction .aligncenter {
    color: var(--ink-soft) !important;
    max-width: 880px;
    margin: 0 auto;
    line-height: 1.75;
    text-align: center;
    font-size: 15.5px;
}

/* ─── SECTION HEADINGS ──────────────────────────── */
.about-logo .aligncenter h2,
.about-logo h2,
.section-header .section-title,
.publication-year {
    font-family: 'DM Serif Display', serif !important;
    color: var(--ink) !important;
}
.section-header { text-align: center; margin: 14px 0 34px; }
.section-header .section-title {
    font-size: clamp(24px, 3vw, 34px) !important;
    display: inline-block;
    text-transform: none !important;
    letter-spacing: 0 !important;
}
.section-header .section-title::after {
    content: '';
    display: block;
    width: 48px; height: 3px;
    background: var(--accent);
    margin: 12px auto 0;
    border-radius: 2px;
}
.about-logo h3 { font-size: 22px !important; color: var(--ink) !important; }
.about-logo h3 .color { color: var(--accent) !important; }
.about-logo p { color: var(--ink-soft) !important; }
.btn-color {
    background: var(--accent) !important;
    border: none !important;
    color: #fff !important;
    border-radius: var(--radius) !important;
    font-weight: 600;
    letter-spacing: .04em;
    padding: 10px 22px !important;
    transition: background .2s, transform .2s;
}
.btn-color:hover { background: var(--accent-dim) !important; transform: translateY(-2px); }

/* ─── PROJECT CARDS (.portfolio-item on index + research) ─── */
.about .portfolio-item,
#content .portfolio-item {
    background: #fff;
    border: 1px solid var(--rule);
    border-radius: 10px;
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    padding: 0 0 16px;
    margin-bottom: 26px;
    transition: transform .2s, box-shadow .2s, border-color .2s;
}
.about .portfolio-item:hover,
#content .portfolio-item:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-md);
    border-color: var(--accent);
}
.about .portfolio-item img,
#content .portfolio-item img {
    display: block;
    width: 100%;
    height: auto;
    margin-bottom: 14px;
}
.about .portfolio-item h3,
#content .portfolio-item h3 {
    font-family: 'DM Serif Display', serif !important;
    font-size: 18px !important;
    line-height: 1.3;
    color: var(--ink) !important;
    padding: 0 18px;
    margin: 0 0 8px;
}
.about .portfolio-item h3 a,
#content .portfolio-item h3 a { color: var(--ink) !important; }
.about .portfolio-item p,
#content .portfolio-item p {
    color: var(--ink-soft) !important;
    font-size: 13.5px;
    padding: 0 18px;
}
.about .portfolio-item p[align="right"],
#content .portfolio-item p[align="right"] {
    color: var(--accent-dim) !important;
    font-weight: 600;
    font-size: 12.5px;
}
.about .portfolio-item p a,
#content .portfolio-item p a { color: var(--accent) !important; }

/* ─── PEOPLE CARDS (.team-wrapper) ──────────────── */
.team-wrapper {
    background: #fff !important;
    border: 1px solid var(--rule);
    border-radius: 12px !important;
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    margin-bottom: 28px;
    transition: transform .2s, box-shadow .2s, border-color .2s;
}
.team-wrapper:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-md);
    border-color: var(--accent);
}
.team-wrapper .team-inner {
    border-radius: 0 !important;
    height: 230px !important;
}
.team-wrapper .description {
    padding: 16px 16px 20px;
    text-align: center;
    position: relative;
}
.team-wrapper .description h3 {
    font-family: 'DM Serif Display', serif !important;
    font-size: 18px !important;
    color: var(--ink) !important;
    margin: 4px 0 6px;
}
.team-wrapper .description h5,
.team-wrapper .description h5 strong {
    color: var(--accent-dim) !important;
    font-family: 'JetBrains Mono', monospace !important;
    font-size: 11px !important;
    font-weight: 500 !important;
    letter-spacing: .04em;
    text-transform: uppercase;
}
.team-wrapper .description p {
    color: var(--ink-muted) !important;
    font-size: 13px;
    margin-top: 8px;
}
.team-wrapper .description a .fa-link,
.team-wrapper .description a {
    color: var(--accent) !important;
}

/* ─── PUBLICATIONS ──────────────────────────────── */
#content-section { padding: 50px 0 70px; }
.publication-year {
    font-size: 30px !important;
    color: var(--ink) !important;
    margin: 36px 0 6px;
}
#content-section hr { border-top: 2px solid var(--accent); opacity: .5; margin-top: 6px; }
.publication-list { list-style: none; padding: 0; }
.publication-list li {
    background: #fff;
    border: 1px solid var(--rule);
    border-left: 4px solid var(--accent);
    border-radius: 8px;
    padding: 16px 20px;
    margin-bottom: 14px;
    box-shadow: var(--shadow-sm);
    line-height: 1.6;
    transition: transform .15s, box-shadow .15s;
}
.publication-list li:hover { transform: translateX(3px); box-shadow: var(--shadow-md); }
.publication-list li strong { color: var(--ink); font-size: 15px; }
.publication-list li em { color: var(--accent-dim); font-style: normal; font-weight: 600; }
.publication-list li span { color: var(--ink-muted); font-size: 13px; }
.publication-list li a { color: var(--accent) !important; font-weight: 600; }

/* ─── TALK SERIES (talktt) ──────────────────────── */
#portfolio { background: var(--paper); }
#portfolio .centered-text {
    color: var(--ink-soft) !important;
    text-indent: 0 !important;
    max-width: 900px;
    margin: 0 auto !important;
    display: block !important;
    text-align: center;
    font-size: 15px;
    line-height: 1.75;
}
.portfolio-filter {
    background: #fff !important;
    border: 1px solid var(--rule);
    border-radius: 40px !important;
    display: inline-flex !important;
    justify-content: center !important;
    flex-wrap: wrap;
    padding: 6px !important;
    margin: 0 auto 36px !important;
    box-shadow: var(--shadow-sm);
}
.portfolio-filter li { margin: 0 !important; }
.portfolio-filter a {
    color: var(--ink-soft) !important;
    font-family: 'DM Sans', sans-serif;
    font-size: 13px;
    font-weight: 500;
    padding: 8px 18px !important;
    border-radius: 30px !important;
}
.portfolio-filter a:hover,
.portfolio-filter a.active {
    background: var(--accent) !important;
    color: #fff !important;
}
.portfolio-item-inner {
    background: linear-gradient(160deg, #14242f 0%, #0f1923 100%) !important;
    border: 1px solid rgba(255,255,255,.06);
    border-radius: 12px;
    overflow: hidden;
    box-shadow: var(--shadow-md);
    padding-bottom: 16px;
    transition: transform .2s, box-shadow .2s;
}
.portfolio-item-inner:hover { transform: translateY(-5px); box-shadow: var(--shadow-lg); }
.portfolio-item-inner > img.img-responsive {
    width: 100%;
    height: 230px;
    object-fit: cover;
    margin-bottom: 12px;
}
.portfolio-item-inner b { color: #fff; font-size: 16px; padding: 0 16px; }
.portfolio-item-inner,
.portfolio-item-inner a,
.portfolio-item-inner font,
.portfolio-item-inner span,
.portfolio-item-inner .additional-info,
.portfolio-item-inner .additional-info a { color: rgba(255,255,255,.82) !important; }
.portfolio-item-inner b, .portfolio-item-inner a b { padding-left: 16px; }
.portfolio-info { padding: 6px 16px 0; }
.portfolio-info h6 {
    color: var(--accent) !important;
    font-family: 'JetBrains Mono', monospace !important;
    font-size: 11px !important;
    letter-spacing: .04em;
    text-transform: uppercase;
    margin: 6px 0;
}
.portfolio-info .preview {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 34px; height: 34px;
    margin-top: 10px;
    background: var(--accent);
    border-radius: 50%;
}
.portfolio-info .preview .fa-eye { color: #fff !important; }
.portfolio-info .preview:hover { background: var(--accent-dim); }

/* Talk logos band */
#logo-section { background: var(--paper-warm) !important; border-top: 1px solid var(--rule); }

/* ─── FOOTER ────────────────────────────────────── */
footer {
    background: var(--ink) !important;
    color: rgba(255,255,255,.6) !important;
    border-top: 3px solid var(--accent);
    padding-top: 48px !important;
}
footer .widgetheading,
footer h3.widgetheading,
footer h5.widgetheading {
    font-family: 'DM Serif Display', serif !important;
    color: #fff !important;
    font-size: 18px !important;
    margin-bottom: 14px;
}
footer address, footer p, footer .widget p { color: rgba(255,255,255,.6) !important; }
footer address strong { color: var(--accent) !important; }
footer a { color: rgba(255,255,255,.75) !important; }
footer a:hover { color: var(--accent) !important; }
#sub-footer {
    background: #0a1119 !important;
    margin-top: 36px;
    padding: 16px 0;
}
#sub-footer .copyright p, #sub-footer p { color: rgba(255,255,255,.45) !important; font-size: 12px; }
.social-network li a {
    color: rgba(255,255,255,.7) !important;
    transition: color .2s, transform .2s;
}
.social-network li a:hover { color: var(--accent) !important; transform: translateY(-2px); }

/* ─── SCROLL TO TOP ─────────────────────────────── */
.scrollup {
    background: var(--ink) !important;
    border-radius: 8px !important;
    width: 42px !important;
    height: 42px !important;
    line-height: 42px !important;
    box-shadow: var(--shadow-md);
    transition: background .2s, transform .2s;
}
.scrollup:hover { background: var(--accent) !important; transform: translateY(-2px); }
.scrollup .fa { color: #fff !important; }

/* ─── FLEXSLIDER CAPTION (index hero) ───────────── */
.flex-caption .item_introtext strong {
    font-family: 'DM Serif Display', serif !important;
    letter-spacing: -.01em;
}

/* ─── RESPONSIVE ────────────────────────────────── */
@media (max-width: 767px) {
    .navbar-default .navbar-nav > li > a {
        padding-top: 12px !important;
        padding-bottom: 12px !important;
    }
    #inner-headline { padding: 40px 0 32px !important; }
}