/* IEEE brand-compliant theme (primary: IEEE Blue #00629B / PMS 3015 C) */

:root,
html[data-theme="light"] {
    --ieee-blue: #00629B;
    --ieee-blue-75: #477CA7;
    --ieee-blue-50: #809DBD;
    --ieee-blue-25: #BAC6D9;
    --ieee-dark-blue: #002855;
    --ieee-cyan: #00B5E2;
    --ieee-black: #000000;
    --ieee-white: #FFFFFF;

    --color-bg: #FFFFFF;
    --color-bg-elevated: #FFFFFF;
    --color-bg-muted: #D5E2EF;
    --color-bg-soft: #C9D9EA;
    --color-text: #1A2332;
    --color-text-muted: #5B6B7C;
    --color-border: #C5D2E0;
    --color-border-strong: #A8B8CA;
    --color-link: var(--ieee-blue);
    --color-link-hover: var(--ieee-dark-blue);
    --color-accent: var(--ieee-blue);
    --color-accent-contrast: #FFFFFF;
    --color-shadow: rgba(0, 40, 85, 0.1);
    --color-shadow-strong: rgba(0, 40, 85, 0.18);
    --shadow-xs: 0 1px 2px rgba(0, 40, 85, 0.05);
    --shadow-sm: 0 2px 8px rgba(0, 40, 85, 0.08), 0 1px 2px rgba(0, 40, 85, 0.04);
    --shadow-md: 0 8px 24px rgba(0, 40, 85, 0.12), 0 2px 6px rgba(0, 40, 85, 0.06);
    --shadow-lg: 0 16px 40px rgba(0, 40, 85, 0.16), 0 4px 12px rgba(0, 40, 85, 0.08);
    --shadow-inset: inset 0 1px 0 rgba(255, 255, 255, 0.65);
    --color-navbar-bg: rgba(255, 255, 255, 0.92);
    --color-footer-bg: #0f172a;
    --color-footer-text: #FFFFFF;
    --color-footer-heading: #FFFFFF;
    --color-footer-link: #FFFFFF;
    --color-footer-link-hover: #E2E8F0;
    --color-footer-border: rgba(255, 255, 255, 0.12);
    --color-footer-accent: #00629B;
    --color-form-bg: #FFFFFF;
    --color-form-border: #C9D5E2;
    --color-overlay: linear-gradient(180deg, rgba(0, 40, 85, 0.68), rgba(0, 98, 155, 0.5));
    --radius-sm: 0.375rem;
    --radius-md: 0.5rem;
    --radius-lg: 0.75rem;
    --font-sans: "Figtree", "Helvetica Neue", Helvetica, Arial, sans-serif;
    color-scheme: light;
}

html[data-theme="dark"] {
    --ieee-blue: #00629B;
    --ieee-blue-75: #477CA7;
    --ieee-blue-50: #809DBD;
    --ieee-blue-25: #BAC6D9;
    --ieee-dark-blue: #00B5E2;
    --ieee-cyan: #00B5E2;
    --ieee-black: #000000;
    --ieee-white: #FFFFFF;

    --color-bg: #141414;
    --color-bg-elevated: #1F1F1F;
    --color-bg-muted: #262626;
    --color-bg-soft: #2E2E2E;
    --color-text: #FFFFFF;
    --color-text-muted: #C8C8C8;
    --color-border: #3A3A3A;
    --color-border-strong: #4A4A4A;
    --color-link: #5AC8F0;
    --color-link-hover: #9BDEF7;
    --color-accent: #00629B;
    --color-accent-contrast: #FFFFFF;
    --color-shadow: rgba(0, 0, 0, 0.4);
    --color-shadow-strong: rgba(0, 0, 0, 0.55);
    --shadow-xs: 0 1px 2px rgba(0, 0, 0, 0.35);
    --shadow-sm: 0 2px 10px rgba(0, 0, 0, 0.35), 0 1px 3px rgba(0, 0, 0, 0.25);
    --shadow-md: 0 10px 28px rgba(0, 0, 0, 0.45), 0 3px 8px rgba(0, 0, 0, 0.3);
    --shadow-lg: 0 18px 44px rgba(0, 0, 0, 0.55), 0 6px 14px rgba(0, 0, 0, 0.35);
    --shadow-inset: inset 0 1px 0 rgba(255, 255, 255, 0.06);
    --color-navbar-bg: rgba(20, 20, 20, 0.92);
    --color-footer-bg: #0f172a;
    --color-footer-text: #FFFFFF;
    --color-footer-heading: #FFFFFF;
    --color-footer-link: #FFFFFF;
    --color-footer-link-hover: #E2E8F0;
    --color-footer-border: rgba(255, 255, 255, 0.12);
    --color-footer-accent: #002855;
    --color-form-bg: #1C1C1C;
    --color-form-border: #3A3A3A;
    --color-overlay: linear-gradient(180deg, rgba(0, 0, 0, 0.74), rgba(20, 20, 20, 0.58));
    color-scheme: dark;
}

/* Legacy aliases used across Blade views */
:root {
    --ieee-light-blue: var(--color-bg-soft);
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-sans);
    line-height: 1.6;
    background: var(--color-bg);
    color: var(--color-text);
    transition: background-color 0.2s ease, color 0.2s ease;
}

main {
    min-height: 50vh;
}

a {
    color: var(--color-link);
}

a:hover {
    color: var(--color-link-hover);
}

.text-primary,
.text-ieee {
    color: var(--color-link) !important;
}

.bg-primary {
    background-color: var(--ieee-blue) !important;
}

.bg-light {
    background-color: var(--color-bg-muted) !important;
    color: var(--color-text);
}

html[data-theme="dark"] .text-muted {
    color: var(--color-text-muted) !important;
    opacity: 1;
}

html[data-theme="dark"] .lead,
html[data-theme="dark"] p,
html[data-theme="dark"] li,
html[data-theme="dark"] .form-label,
html[data-theme="dark"] .navbar-nav .nav-link {
    color: var(--color-text);
}

html[data-theme="dark"] .navbar-nav .nav-link:hover,
html[data-theme="dark"] .navbar-nav .nav-link.active {
    color: var(--color-link) !important;
}

.border,
.border-top,
.border-bottom {
    border-color: var(--color-border) !important;
}

.card {
    background: var(--color-bg-elevated);
    color: var(--color-text);
    border: 1px solid var(--color-border);
    box-shadow: var(--shadow-sm);
    border-radius: var(--radius-md);
    transition: transform 0.2s ease, box-shadow 0.2s ease, border-color 0.2s ease;
}

.card:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-md);
}

.card-header {
    background-color: var(--ieee-blue);
    color: var(--ieee-white);
    font-weight: 600;
    border-bottom: none;
}

.form-control,
.form-select {
    background-color: var(--color-form-bg);
    border-color: var(--color-form-border);
    color: var(--color-text);
    box-shadow: var(--shadow-xs);
}

.form-control:focus,
.form-select:focus {
    background-color: var(--color-form-bg);
    border-color: var(--ieee-blue);
    color: var(--color-text);
    box-shadow: 0 0 0 0.2rem rgba(0, 98, 155, 0.2), var(--shadow-sm);
}

.form-label {
    color: var(--color-text);
    font-weight: 500;
}

.alert-success {
    background: rgba(0, 132, 61, 0.12);
    border-color: rgba(0, 132, 61, 0.35);
    color: var(--color-text);
}

.alert-danger {
    background: rgba(186, 12, 47, 0.12);
    border-color: rgba(186, 12, 47, 0.35);
    color: var(--color-text);
}

/* Soft rectangle buttons (#2) site-wide */
.btn {
    border-radius: 0.5rem;
}

.btn-ieee {
    background-color: var(--ieee-blue);
    border: 1px solid var(--ieee-blue);
    color: var(--ieee-white);
    font-weight: 600;
    letter-spacing: 0.01em;
    padding: 0.7rem 1.75rem;
    border-radius: 0.5rem;
    box-shadow: var(--shadow-sm);
    transition: background-color 0.2s ease, border-color 0.2s ease, transform 0.2s ease, box-shadow 0.2s ease;
}

.btn-ieee:hover,
.btn-ieee:focus {
    background-color: var(--ieee-dark-blue);
    border-color: var(--ieee-dark-blue);
    color: var(--ieee-white);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

html[data-theme="dark"] .btn-ieee:hover,
html[data-theme="dark"] .btn-ieee:focus {
    background-color: #004d7a;
    border-color: #004d7a;
}

.btn-outline-primary {
    color: var(--color-link);
    border-color: var(--color-link);
    border-radius: 0.5rem;
    box-shadow: var(--shadow-xs);
    transition: background-color 0.2s ease, border-color 0.2s ease, color 0.2s ease, box-shadow 0.2s ease, transform 0.2s ease;
}

.btn-outline-primary:hover {
    background-color: var(--ieee-blue);
    border-color: var(--ieee-blue);
    color: var(--ieee-white);
    box-shadow: var(--shadow-sm);
    transform: translateY(-1px);
}

.navbar-brand {
    font-weight: 600;
    color: var(--ieee-blue) !important;
    padding: 0;
    margin: 0;
}

.brand-logos {
    display: flex;
    align-items: center;
    column-gap: 1rem;
    row-gap: 0.5rem;
    flex-wrap: nowrap;
}

.navbar.site-navbar {
    padding-top: 0;
    padding-bottom: 0;
    min-height: 70px;
    background: var(--color-navbar-bg) !important;
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--color-border);
    box-shadow: var(--shadow-sm);
    overflow: visible;
    z-index: 1030;
}

.navbar.site-navbar .container {
    align-items: center;
    min-height: 70px;
    overflow: visible;
}

.navbar .brand-logos {
    overflow: visible;
    position: relative;
    z-index: 2;
}

.navbar .brand-logos .brand-divider {
    width: 1px;
    height: 36px;
    background: var(--color-border-strong);
    flex-shrink: 0;
}

.navbar .brand-logos .ieee-brand-link {
    display: flex;
    align-items: center;
    flex-shrink: 0;
    position: relative;
}

.navbar .brand-logos .ieee-brand-img {
    height: 40px;
    width: auto;
    object-fit: contain;
}

.navbar .brand-logos .eit-brand-link {
    position: relative;
    display: block;
    width: 150px;
    height: 56px;
    flex-shrink: 0;
    overflow: visible;
}

.navbar .brand-logos .eit-brand-img {
    position: absolute;
    left: 0;
    top: 50%;
    transform: translateY(-50%);
    height: 112px;
    width: auto;
    max-width: 180px;
    object-fit: contain;
}

.footer-brand-logos .ieee-brand-link {
    position: relative;
    display: inline-block;
    vertical-align: middle;
}

.footer-brand-logos .ieee-brand-img {
    height: 48px;
    width: auto;
    object-fit: contain;
}

/* Theme-aware logos: blue/black on light, white on dark */
.eit-brand-img-light,
.ieee-brand-img-light { display: block; }
.eit-brand-img-dark,
.ieee-brand-img-dark { display: none; }

html[data-theme="dark"] .eit-brand-img-light,
html[data-theme="dark"] .ieee-brand-img-light { display: none !important; }
html[data-theme="dark"] .eit-brand-img-dark,
html[data-theme="dark"] .ieee-brand-img-dark { display: block !important; }

.footer-brand-logos {
    column-gap: 1.25rem;
}

@media (max-width: 576px) {
    .navbar .brand-logos {
        column-gap: 0.65rem;
    }
    .navbar .brand-logos .brand-divider {
        height: 28px;
    }
    .navbar .brand-logos .eit-brand-link {
        width: 110px;
        height: 44px;
    }
    .navbar .brand-logos .eit-brand-img {
        height: 88px;
        max-width: 130px;
    }
    .navbar .brand-logos .ieee-brand-img {
        height: 32px;
    }
}

.navbar-nav {
    align-items: center;
    gap: 0.15rem;
}

.navbar-nav .nav-link {
    font-weight: 500;
    font-size: 0.875rem;
    letter-spacing: 0.01em;
    color: var(--color-text) !important;
    padding: 0.5rem 0.7rem !important;
    white-space: nowrap;
    border-radius: 0;
    border-bottom: 2px solid transparent;
    transition: color 0.2s ease, border-color 0.2s ease;
}

.navbar-nav .nav-link:hover,
.navbar-nav .nav-link:focus {
    color: var(--color-link) !important;
    background-color: transparent !important;
}

.navbar-nav .nav-link.active {
    color: var(--color-link) !important;
    border-bottom-color: var(--ieee-blue);
    background-color: transparent !important;
}

.navbar-nav .dropdown-menu {
    background: var(--color-bg-elevated);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-lg);
    padding: 0.35rem 0;
    margin-top: 0.25rem;
}

.navbar-nav .dropdown-item {
    font-size: 0.875rem;
    padding: 0.5rem 1rem;
    color: var(--color-text);
}

.navbar-nav .dropdown-item:hover,
.navbar-nav .dropdown-item:focus {
    background-color: var(--color-bg-soft);
    color: var(--color-link-hover);
}

.navbar-toggler {
    border-color: var(--color-border-strong);
}

.navbar-toggler-icon {
    filter: none;
}

html[data-theme="dark"] .navbar-toggler-icon {
    filter: invert(1);
}

.theme-toggle {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 2.25rem;
    height: 2.25rem;
    margin-left: 0.35rem;
    border: 1px solid var(--color-border);
    border-radius: 999px;
    background: var(--color-bg-elevated);
    color: var(--color-text);
    cursor: pointer;
    box-shadow: var(--shadow-xs);
    transition: background-color 0.2s ease, border-color 0.2s ease, color 0.2s ease, box-shadow 0.2s ease;
}

.theme-toggle:hover,
.theme-toggle:focus {
    border-color: var(--ieee-blue);
    color: var(--color-link);
    box-shadow: var(--shadow-sm);
    outline: none;
}

.theme-toggle svg {
    width: 1.05rem;
    height: 1.05rem;
}

.theme-toggle .icon-sun { display: none; }
.theme-toggle .icon-moon { display: block; }
html[data-theme="dark"] .theme-toggle .icon-sun { display: block; }
html[data-theme="dark"] .theme-toggle .icon-moon { display: none; }

@media (min-width: 992px) and (max-width: 1199.98px) {
    .navbar-nav .nav-link {
        font-size: 0.8125rem;
        padding: 0.45rem 0.5rem !important;
    }
}

@media (min-width: 992px) {
    .navbar .nav-item.dropdown:hover .dropdown-menu {
        display: block;
    }
}

.hero-section {
    color: var(--ieee-white);
    padding: 4.5rem 0;
    text-align: center;
    position: relative;
}

.hero-section:not(.campus-bg)::before {
    content: "";
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, rgba(0, 98, 155, 0.88) 0%, rgba(0, 40, 85, 0.88) 100%);
    z-index: 1;
}

.hero-section .container {
    position: relative;
    z-index: 2;
}

.hero-section.campus-bg {
    overflow: hidden;
}

.hero-section.campus-bg .hero-bg-image {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: center;
    z-index: 0;
}

.hero-section.campus-bg .hero-overlay {
    position: absolute;
    inset: 0;
    background: var(--color-overlay);
    z-index: 1;
}

.hero-title {
    font-size: clamp(1.75rem, 4vw, 2.6rem);
    font-weight: 700;
    margin-bottom: 1rem;
    line-height: 1.2;
    letter-spacing: -0.02em;
    text-shadow: 0 2px 12px rgba(0, 0, 0, 0.45);
}

.hero-subtitle {
    font-size: clamp(1.05rem, 2vw, 1.3rem);
    margin-bottom: 1.25rem;
    opacity: 0.95;
    text-shadow: 0 1px 8px rgba(0, 0, 0, 0.4);
}

.important-dates {
    background-color: var(--color-bg-elevated);
    border-left: 4px solid var(--ieee-blue);
    padding: 1.5rem;
    margin: 2rem 0;
    border-radius: 0 var(--radius-md) var(--radius-md) 0;
    box-shadow: var(--shadow-sm);
}

.topics-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1rem;
    margin-top: 2rem;
}

.topic-item {
    background-color: var(--color-bg-elevated);
    color: var(--color-text);
    padding: 1rem;
    border-radius: var(--radius-md);
    text-align: center;
    font-weight: 500;
    border: 1px solid var(--color-border);
    box-shadow: var(--shadow-sm);
    transition: background-color 0.2s ease, color 0.2s ease, transform 0.2s ease, box-shadow 0.2s ease;
}

.topic-item:hover {
    background-color: var(--ieee-blue);
    color: var(--ieee-white);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.footer {
    background-color: var(--color-footer-bg);
    color: #FFFFFF;
    padding: 2.25rem 0 1.25rem;
    margin-top: 0;
    border-top: 3px solid var(--color-footer-accent);
    box-shadow: none;
}

.footer p,
.footer li,
.footer span {
    color: #FFFFFF;
}

.footer h5,
.footer .footer-title {
    color: var(--color-footer-heading);
    margin-bottom: 0.65rem;
    font-weight: 700;
    font-size: 1rem;
    letter-spacing: 0.01em;
}

.footer a {
    color: var(--color-footer-link);
    text-decoration: none;
    transition: color 0.2s ease;
}

.footer a:hover {
    color: var(--color-footer-link-hover);
}

.footer-lead,
.footer-meta {
    font-size: 0.9rem;
    line-height: 1.5;
    color: var(--color-footer-text);
}

.footer-lead {
    margin-bottom: 0.55rem;
}

.footer-link-list {
    margin-bottom: 0;
}

.footer-link-list li + li {
    margin-top: 0.3rem;
}

.footer-link-list a {
    font-size: 0.9rem;
    display: inline-block;
    padding: 0.15rem 0;
}

.footer-social {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.75rem;
    margin-top: 1.35rem;
}

.footer-social-link {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 2.35rem;
    height: 2.35rem;
    border-radius: 999px;
    border: 1px solid rgba(255, 255, 255, 0.22);
    color: #FFFFFF;
    background: rgba(255, 255, 255, 0.04);
    transition: color 0.2s ease, background-color 0.2s ease, border-color 0.2s ease, transform 0.2s ease;
}

.footer-social-link svg {
    width: 1.05rem;
    height: 1.05rem;
    display: block;
}

.footer-social-link:hover,
.footer-social-link:focus {
    color: #FFFFFF;
    background: rgba(0, 98, 155, 0.35);
    border-color: rgba(0, 98, 155, 0.8);
    transform: translateY(-1px);
    outline: none;
}

.footer-divider {
    border: 0;
    border-top: 1px solid var(--color-footer-border);
    opacity: 1;
    margin: 1.15rem 0 1.15rem;
}

.footer-bottom {
    max-width: 52rem;
    margin-left: auto;
    margin-right: auto;
}

.footer-sponsor,
.footer-copy {
    font-size: 0.78rem;
    line-height: 1.5;
    color: #FFFFFF;
}

/* Footer is always dark: force light logos */
.footer .ieee-brand-img-light,
.footer .eit-brand-img-light {
    display: none !important;
}

.footer .ieee-brand-img-dark,
.footer .eit-brand-img-dark {
    display: block !important;
}

.footer-brand-logos {
    display: flex;
    align-items: center;
    justify-content: center;
    flex-wrap: wrap;
    column-gap: 1.5rem;
    row-gap: 0.5rem;
}

.footer-brand-logos .footer-eit-link {
    position: relative;
    display: inline-block;
    width: auto;
    height: auto;
    overflow: visible;
    vertical-align: middle;
}

.footer-brand-logos .eit-brand-img {
    position: static;
    transform: none;
    height: 88px;
    width: auto;
    max-width: 170px;
    object-fit: contain;
}

.footer-brand-logos .ieee-brand-img {
    height: 40px;
    width: auto;
    object-fit: contain;
}

@media (max-width: 767.98px) {
    .footer {
        padding: 1.75rem 0 1.1rem;
    }

    .footer-brand-col {
        margin-bottom: 0.35rem;
    }

    .footer-title {
        font-size: 0.95rem;
    }

    .footer-lead,
    .footer-meta,
    .footer-link-list a {
        font-size: 0.875rem;
    }

    .footer-link-list a {
        padding: 0.3rem 0;
        min-height: 1.75rem;
    }

    .footer-social {
        margin-top: 1.1rem;
    }

    .footer-social-link {
        width: 2.6rem;
        height: 2.6rem;
    }

    .footer-divider {
        margin: 1rem 0;
    }

    .footer-brand-logos .eit-brand-img {
        height: 72px;
        max-width: 140px;
    }

    .footer-brand-logos .ieee-brand-img {
        height: 34px;
    }

    .footer-sponsor,
    .footer-copy {
        font-size: 0.75rem;
        padding-inline: 0.25rem;
    }
}

@media (max-width: 575.98px) {
    .footer-main > [class*="col-"] {
        min-width: 0;
    }

    .footer-link-list a {
        word-break: break-word;
    }
}

.placeholder-img {
    background: linear-gradient(135deg, var(--ieee-blue) 0%, var(--ieee-dark-blue) 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-weight: 600;
    text-align: center;
    font-size: 1.1rem;
}

/* Landing + shared page helpers */
.landing-overview {
    font-size: 1.125rem;
    line-height: 1.75;
}

.landing-topic-chips {
    display: flex;
    flex-wrap: wrap;
    gap: 0.65rem;
}

.landing-topic-chip {
    display: inline-block;
    margin: 0;
    padding: 0.55rem 0.95rem;
    font-size: 0.9rem;
    font-weight: 600;
    line-height: 1.35;
    color: var(--color-text);
    background: var(--color-bg-elevated);
    border: 1px solid var(--color-border);
    border-radius: 0.5rem;
    cursor: default;
    box-shadow: var(--shadow-xs);
    transition: border-color 0.2s ease, color 0.2s ease, background-color 0.2s ease, box-shadow 0.2s ease, transform 0.2s ease;
}

.landing-topic-chip:hover,
.landing-topic-chip:focus-visible {
    color: var(--ieee-blue);
    border-color: var(--ieee-blue);
    background: var(--color-bg-elevated);
    box-shadow: var(--shadow-sm);
    transform: translateY(-1px);
    outline: none;
}

.landing-dates-grid {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 1rem;
}

.landing-date-card {
    display: flex;
    flex-direction: column;
    gap: 0.85rem;
    padding: 1.15rem 1.1rem 1.25rem;
    background: var(--color-bg-elevated);
    border: 1px solid var(--color-border);
    border-radius: 0.5rem;
    min-height: 100%;
    box-shadow: var(--shadow-sm);
    transition: transform 0.2s ease, box-shadow 0.2s ease, border-color 0.2s ease;
}

.landing-date-card:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-md);
    border-color: var(--color-border-strong);
}

.landing-date-calendar {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    line-height: 1;
}

.landing-date-month {
    font-size: 0.75rem;
    font-weight: 700;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--ieee-blue);
    margin-bottom: 0.35rem;
}

.landing-date-day {
    font-size: 2.35rem;
    font-weight: 700;
    letter-spacing: -0.03em;
    color: var(--color-text);
    line-height: 0.95;
}

.landing-date-year {
    margin-top: 0.35rem;
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--color-text-muted);
}

.landing-date-label {
    font-size: 0.95rem;
    font-weight: 600;
    color: var(--color-text);
    line-height: 1.35;
    margin: 0;
}

@media (max-width: 991.98px) {
    .landing-dates-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }
}

@media (max-width: 575.98px) {
    .landing-dates-grid {
        grid-template-columns: 1fr;
    }
}

.landing-host-hero {
    width: 100%;
    height: 260px;
    object-fit: cover;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-md);
}

.landing-feature {
    padding: 0.25rem 0 0.5rem;
}

.landing-feature-media {
    overflow: hidden;
    border-radius: var(--radius-md);
    aspect-ratio: 16 / 10;
    background: var(--color-bg-muted);
    border: 1px solid var(--color-border);
    box-shadow: var(--shadow-sm);
    transition: box-shadow 0.2s ease, transform 0.2s ease;
}

.landing-feature:hover .landing-feature-media {
    box-shadow: var(--shadow-md);
    transform: translateY(-2px);
}

.landing-feature-media img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
}

.landing-leader-photo {
    display: block;
    width: 120px;
    height: 120px;
    margin-left: auto;
    margin-right: auto;
    object-fit: cover;
    border-radius: 50%;
    border: 3px solid var(--color-bg-elevated);
    box-shadow: var(--shadow-md);
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.landing-leader-photo-placeholder {
    background: linear-gradient(145deg, var(--color-border), var(--color-bg-elevated));
}

.landing-leader:hover .landing-leader-photo {
    transform: translateY(-3px);
    box-shadow: var(--shadow-lg);
}

.page-hero {
    padding-top: 3.5rem;
    padding-bottom: 3.5rem;
}

.page-hero .hero-subtitle {
    margin-bottom: 0;
    max-width: 46rem;
    margin-left: auto;
    margin-right: auto;
}


.bg-elevated {
    background: var(--color-bg-elevated) !important;
}

.landing-archive-link {
    color: inherit;
}

.landing-archive-card {
    background: var(--color-bg-elevated);
    box-shadow: var(--shadow-sm);
    transition: border-color 0.2s ease, box-shadow 0.2s ease, transform 0.2s ease;
}

.landing-archive-card:hover {
    border-color: var(--ieee-blue) !important;
    box-shadow: var(--shadow-md);
    transform: translateY(-3px);
}

.archive-year-card {
    background: var(--color-bg-elevated);
    box-shadow: var(--shadow-sm);
    transition: border-color 0.2s ease, box-shadow 0.2s ease, transform 0.2s ease;
    border-color: var(--color-border) !important;
}

.archive-year-link:hover .archive-year-card {
    border-color: var(--ieee-blue) !important;
    box-shadow: var(--shadow-md);
    transform: translateY(-3px);
}

@media (max-width: 768px) {
    .hero-section {
        padding: 3rem 0;
    }

    .hero-title {
        font-size: 1.75rem;
    }

    .hero-subtitle {
        font-size: 1.05rem;
    }

    .landing-topic-chips {
        gap: 0.5rem;
    }

    .landing-topic-chip {
        font-size: 0.82rem;
        padding: 0.45rem 0.75rem;
    }

    .landing-host-hero {
        height: 200px;
    }

    .landing-leader-photo {
        width: 96px;
        height: 96px;
    }

    .landing-date-day {
        font-size: 2rem;
    }

    .page-hero {
        padding-top: 2.5rem;
        padding-bottom: 2.5rem;
    }
}

@media (max-width: 575.98px) {
    .hero-section .container {
        padding-left: 1rem;
        padding-right: 1rem;
    }

    .landing-overview {
        font-size: 1.05rem;
        line-height: 1.65;
    }
}