@import url('https://fonts.googleapis.com/css2?family=Plus+Jakarta+Sans:wght@400;500;600;700;800&display=swap');

/* =========================================================
   Prof. Rekha Guchhait - custom academic theme
   (overrides the Beeko color scheme + adds page components)
========================================================= */

/* ---------- Color scheme: emerald + navy + gold ---------- */
:root {
    --tg-theme-primary: #0E9F6E;
    --tg-theme-secondary: #0B2447;
    --tg-color-gradient: linear-gradient(90deg, #A7F3D0 0%, #0E9F6E 100%);
    --tg-accent: #F59E0B;
}

/* ---------- Typography ---------- */
body {
    font-family: 'Plus Jakarta Sans', 'Poppins', sans-serif;
}
h1, h2, h3, h4, h5, h6,
.section__title .title,
.logo .logo-text,
.tg-btn,
.banner__content .title {
    font-family: 'Plus Jakarta Sans', 'Poppins', sans-serif;
    letter-spacing: -0.3px;
}


/* ---------- Logo ---------- */
.logo .logo-text {
    display: inline-block;
    font-size: 24px;
    font-weight: 700;
    color: var(--tg-heading-color);
    line-height: 1.25;
    letter-spacing: -0.5px;
}
.logo .logo-text span { color: var(--tg-theme-primary); }
.banner__btn { display: flex; flex-wrap: wrap; gap: 15px; }

/* ---------- Hero portrait ---------- */
.professor-img img {
    width: 100%;
    max-width: 430px;
    border-radius: 26px;
    box-shadow: 0 40px 80px rgba(11, 31, 58, .20);
}

/* ---------- Section spacing helper ---------- */
.section-gap { padding: 110px 0; }
@media (max-width: 767.98px) { .section-gap { padding: 70px 0; } }

/* ---------- Research cards ---------- */
.research-card {
    background: #fff;
    border: 1px solid var(--tg-border-2);
    border-radius: 16px;
    padding: 34px 28px;
    height: 100%;
    transition: all .3s ease-out 0s;
}
.research-card:hover { box-shadow: 0 24px 48px rgba(11, 31, 58, .10); transform: translateY(-5px); }
.research-card .r-icon {
    width: 70px; height: 70px; line-height: 70px; border-radius: 14px;
    background: rgba(15, 118, 110, .10); color: var(--tg-theme-primary);
    font-size: 30px; text-align: center; margin-bottom: 20px;
}
.research-card h3 { font-size: 20px; color: var(--tg-heading-color); margin-bottom: 12px; }
.research-card p { color: var(--tg-body-color); margin-bottom: 0; }

/* ---------- Publications ---------- */
.publication__item {
    background: #fff;
    border: 1px solid var(--tg-border-2);
    border-left: 4px solid var(--tg-theme-primary);
    padding: 22px 26px;
    margin-bottom: 16px;
    border-radius: 10px;
    transition: all .3s ease-out 0s;
}
.publication__item:hover { box-shadow: 0 20px 40px rgba(11, 31, 58, .08); }
.publication__item .authors { color: var(--tg-heading-color); font-weight: 600; font-size: 14px; margin-bottom: 6px; }
.publication__item .pub-title { font-size: 18px; font-weight: 600; color: var(--tg-heading-color); margin-bottom: 6px; line-height: 1.4; }
.publication__item .meta { font-size: 13.5px; color: var(--tg-color-gray-11); margin-bottom: 0; }
.publication__item .meta a { color: var(--tg-theme-primary); }
/* ---------- Academic tables ---------- */
.academic-table {
    width: 100%;
    border-collapse: separate;
    border-spacing: 0;
    background: #fff;
    border: 1px solid var(--tg-border-2);
    border-radius: 14px;
    overflow: hidden;
}
.academic-table th { background: var(--tg-theme-primary); color: #fff; padding: 14px 18px; font-weight: 600; text-align: left; font-size: 15px; }
.academic-table td { padding: 14px 18px; border-top: 1px solid var(--tg-border-2); color: var(--tg-body-color); vertical-align: top; font-size: 14.5px; }
.academic-table tr:nth-child(even) td { background: var(--tg-color-gray-1); }

/* ---------- Tags / chips ---------- */
.chip {
    display: inline-block;
    background: rgba(15, 118, 110, .10);
    color: var(--tg-theme-primary);
    font-weight: 600;
    padding: 8px 16px;
    border-radius: 30px;
    margin: 0 8px 12px 0;
    font-size: 14px;
}
.chip:hover { background: var(--tg-theme-primary); color: #fff; }

/* ---------- Profile contact ---------- */
.profile-contact-item { display: flex; gap: 16px; margin-bottom: 24px; }
.profile-contact-item .p-icon {
    flex: 0 0 54px; height: 54px; line-height: 54px; border-radius: 12px;
    background: rgba(15, 118, 110, .10); color: var(--tg-theme-primary);
    font-size: 22px; text-align: center;
}
.profile-contact-item h5 { font-size: 18px; color: var(--tg-heading-color); margin-bottom: 4px; }
.profile-contact-item p, .profile-contact-item a { color: var(--tg-body-color); margin-bottom: 0; font-size: 15px; word-break: break-word; }

/* ---------- Service / editorial cards ---------- */
.service-card {
    background: #fff; border: 1px solid var(--tg-border-2); border-radius: 14px;
    padding: 28px; height: 100%; transition: all .3s ease-out 0s;
}
.service-card:hover { box-shadow: 0 20px 40px rgba(11, 31, 58, .08); transform: translateY(-4px); }
.service-card .s-icon {
    width: 60px; height: 60px; line-height: 60px; border-radius: 12px;
    background: rgba(15, 118, 110, .10); color: var(--tg-theme-primary);
    font-size: 26px; text-align: center; margin-bottom: 16px;
}
.service-card h4 { font-size: 19px; color: var(--tg-heading-color); margin-bottom: 10px; }
.service-card p, .service-card ul { color: var(--tg-body-color); font-size: 15px; margin-bottom: 0; }

/* ---------- Check list ---------- */
.check-list { list-style: none; padding: 0; margin: 0; }
.check-list li { position: relative; padding-left: 28px; margin-bottom: 10px; color: var(--tg-body-color); }
.check-list li i { color: var(--tg-theme-primary); position: absolute; left: 0; top: 5px; }

/* ---------- Gallery ---------- */
.gallery-item { border-radius: 14px; overflow: hidden; margin-bottom: 30px; }
.gallery-item img { width: 100%; height: 230px; object-fit: cover; transition: all .4s ease-out 0s; }
.gallery-item:hover img { transform: scale(1.06); }

/* ---------- Testimonial card ---------- */
.quote-card {
    background: #fff; border: 1px solid var(--tg-border-2); border-radius: 16px;
    padding: 30px; height: 100%; position: relative;
}
.quote-card .q-icon { color: var(--tg-theme-primary); font-size: 40px; margin-bottom: 16px; opacity: .35; }
.quote-card blockquote { font-size: 15.5px; color: var(--tg-body-color); line-height: 1.7; margin-bottom: 20px; }
.quote-card .who h5 { font-size: 17px; color: var(--tg-heading-color); margin-bottom: 2px; }
.quote-card .who span { font-size: 13.5px; color: var(--tg-color-gray-11); }

/* ---------- Academic tabs (inner-page navigation) ---------- */
.academic-tabs .nav-tabs {
    border-bottom: 2px solid var(--tg-border-2);
    flex-wrap: nowrap;
    overflow-x: auto;
    overflow-y: hidden;
    gap: 6px;
    padding-bottom: 2px;
}
.academic-tabs .nav-tabs .nav-item { white-space: nowrap; }
.academic-tabs .nav-tabs .nav-link {
    border: none;
    border-radius: 12px 12px 0 0;
    padding: 14px 22px;
    font-weight: 600;
    font-size: 15px;
    color: var(--tg-body-color);
    background: transparent;
}
.academic-tabs .nav-tabs .nav-link i { margin-right: 8px; color: var(--tg-theme-primary); }
.academic-tabs .nav-tabs .nav-link:hover { color: var(--tg-theme-primary); background: rgba(15, 118, 110, .06); }
.academic-tabs .nav-tabs .nav-link.active { color: #fff; background: var(--tg-theme-primary); }
.academic-tabs .nav-tabs .nav-link.active i { color: #fff; }
.academic-tabs .tab-content {
    background: #fff;
    border: 1px solid var(--tg-border-2);
    border-top: none;
    border-radius: 0 0 14px 14px;
    padding: 34px 30px;
}
@media (max-width: 767.98px) {
    .academic-tabs .tab-content { padding: 24px 18px; }
}

/* ---------- Profile header ---------- */
.profile-header-card {
    background: #fff;
    border: 1px solid var(--tg-border-2);
    border-radius: 18px;
    padding: 34px;
    height: 100%;
}
.profile-header-card .p-fact { display: flex; gap: 14px; margin-bottom: 18px; }
.profile-header-card .p-fact i { color: var(--tg-theme-primary); font-size: 20px; margin-top: 3px; }
.profile-header-card .p-fact h6 { font-size: 15px; color: var(--tg-heading-color); margin-bottom: 2px; }
.profile-header-card .p-fact p { color: var(--tg-body-color); margin-bottom: 0; font-size: 14.5px; }

/* ---------- Topic cards (research & teaching) ---------- */
.topic-card {
    background: #fff;
    border: 1px solid var(--tg-border-2);
    border-radius: 18px;
    overflow: hidden;
    height: 100%;
    transition: all .3s ease-out 0s;
}
.topic-card:hover { transform: translateY(-6px); box-shadow: 0 26px 50px rgba(11, 36, 71, .14); }
.topic-card__img { position: relative; height: 180px; overflow: hidden; }
.topic-card__img img { width: 100%; height: 100%; object-fit: cover; transition: all .45s ease-out 0s; }
.topic-card:hover .topic-card__img img { transform: scale(1.08); }
.topic-card__img::after {
    content: "";
    position: absolute;
    inset: 0;
    background: linear-gradient(180deg, rgba(11,36,71,0) 40%, rgba(11,36,71,.45) 100%);
}
.topic-card__icon {
    position: absolute;
    left: 20px;
    bottom: -26px;
    z-index: 2;
    width: 56px; height: 56px; line-height: 56px;
    background: var(--tg-theme-primary);
    color: #fff;
    border-radius: 14px;
    text-align: center;
    font-size: 24px;
    box-shadow: 0 12px 24px rgba(14, 159, 110, .35);
}
.topic-card__body { padding: 42px 22px 24px; }
.topic-card__body h4 { font-size: 18px; color: var(--tg-heading-color); margin-bottom: 8px; }
.topic-card__body p { font-size: 14.5px; color: var(--tg-body-color); margin-bottom: 0; line-height: 1.6; }