/* ============================================================
   KAYASTH SAMAJ – DESIGN SYSTEM v2
   Bootstrap 5.3 compatible | Fully responsive
   ============================================================ */

@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800&display=swap');

/* ---- CSS VARIABLES (Windows 10/11 Blue Palette) ----------- */
:root {
    /* Windows 11 Fluent Design blues */
    --ks-primary:       #0067C0;   /* Win11 accent blue          */
    --ks-primary-dark:  #003E92;   /* Win11 deep navy             */
    --ks-primary-light: #0078D4;   /* Win10 signature blue        */
    --ks-fluent-mid:    #1484D7;   /* mid-range Windows blue      */
    --ks-fluent-sky:    #60CDFF;   /* Win11 Fluent light sky blue */
    --ks-accent:        #f59e0b;   /* warm amber CTA              */
    --ks-accent-dark:   #d97706;
    --ks-light:         #EBF5FB;   /* Windows blue-tinted surface */
    --ks-dark:          #0f172a;
    --ks-muted:         #64748b;
    --ks-border:        rgba(0,0,0,0.08);
    --ks-surface:       #ffffff;
    --ks-bg:            #F0F6FF;   /* very light Windows blue bg  */
    --ks-shadow-sm:     0 2px 8px rgba(0,60,160,0.08);
    --ks-shadow:        0 6px 24px rgba(0,60,160,0.12);
    --ks-shadow-lg:     0 16px 48px rgba(0,60,160,0.16);
    --ks-radius:        0.875rem;
    --ks-radius-lg:     1.25rem;
    --transition:       all 0.25s ease;

    /* Override Bootstrap primary to Windows blue */
    --bs-primary:       #0067C0;
    --bs-primary-rgb:   0, 103, 192;
}

/* ---- BASE -------------------------------------------------- */
body {
    font-family: 'Inter', system-ui, -apple-system, sans-serif;
    background: var(--ks-bg);
    color: var(--ks-dark);
    min-height: 100vh;
}

/* ---- NAVBAR ----------------------------------------------- */
.ks-navbar {
    background: linear-gradient(135deg, var(--ks-primary-dark) 0%, var(--ks-primary) 40%, var(--ks-primary-light) 75%, var(--ks-fluent-mid) 100%);
    padding: 0;
    transition: box-shadow 0.3s ease;
    position: sticky;
    top: 0;
    z-index: 1030;
}
.ks-navbar.scrolled {
    box-shadow: 0 4px 24px rgba(0,0,0,0.28);
}
.ks-navbar .navbar-brand {
    font-weight: 800;
    font-size: 1.125rem;
    letter-spacing: -0.02em;
    padding: 0.875rem 0;
    color: #ffffff !important;
    display: flex;
    align-items: center;
    gap: 0.625rem;
    text-decoration: none;
}
.ks-brand-icon {
    width: 36px;
    height: 36px;
    background: rgba(255,255,255,0.18);
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.05rem;
    flex-shrink: 0;
    border: 1px solid rgba(255,255,255,0.25);
}
.ks-navbar .nav-link {
    color: rgba(255,255,255,0.82) !important;
    font-weight: 500;
    font-size: 0.86rem;
    padding: 1.5rem 0.85rem !important;
    position: relative;
    transition: var(--transition);
    letter-spacing: 0.01em;
}
.ks-navbar .nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    right: 50%;
    height: 2.5px;
    background: var(--ks-accent);
    border-radius: 2px 2px 0 0;
    transition: left 0.25s ease, right 0.25s ease;
}
.ks-navbar .nav-link:hover,
.ks-navbar .nav-link.active {
    color: #ffffff !important;
}
.ks-navbar .nav-link:hover::after,
.ks-navbar .nav-link.active::after {
    left: 0.85rem;
    right: 0.85rem;
}
/* dropdown toggle arrow fix */
.ks-navbar .dropdown-toggle.nav-link::after {
    position: static;
    display: inline-block;
    width: auto;
    height: auto;
    background: none;
    border: none;
    border-top: 0.3em solid;
    border-right: 0.3em solid transparent;
    border-left: 0.3em solid transparent;
    vertical-align: 0.15em;
    margin-left: 0.35em;
}
.ks-navbar .dropdown-menu {
    border: none;
    border-radius: var(--ks-radius);
    box-shadow: var(--ks-shadow-lg);
    padding: 0.5rem;
    margin-top: 0;
    min-width: 180px;
    animation: ks-drop 0.18s ease;
}
@keyframes ks-drop {
    from { opacity:0; transform:translateY(-6px); }
    to   { opacity:1; transform:translateY(0); }
}
.ks-navbar .dropdown-item {
    border-radius: 0.5rem;
    font-size: 0.86rem;
    padding: 0.5rem 0.875rem;
    font-weight: 500;
    color: var(--ks-dark);
    transition: var(--transition);
}
.ks-navbar .dropdown-item:hover {
    background: var(--ks-light);
    color: var(--ks-primary);
}
.ks-navbar .btn-admin {
    background: rgba(255,255,255,0.14);
    color: #ffffff !important;
    border: 1.5px solid rgba(255,255,255,0.35);
    border-radius: 2rem;
    font-size: 0.8rem;
    font-weight: 600;
    padding: 0.4rem 1.1rem;
    transition: var(--transition);
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
}
.ks-navbar .btn-admin:hover {
    background: #ffffff;
    color: var(--ks-primary) !important;
    border-color: #ffffff;
}
.ks-navbar .navbar-toggler {
    border-color: rgba(255,255,255,0.4);
    padding: 0.35rem 0.6rem;
}
.ks-navbar .navbar-toggler-icon {
    background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 30 30'%3e%3cpath stroke='rgba%28255,255,255,0.9%29' stroke-width='2' d='M4 7h22M4 15h22M4 23h22'/%3e%3c/svg%3e");
}
.ks-navbar .nav-search-link {
    width: 36px;
    height: 36px;
    background: rgba(255,255,255,0.12);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: rgba(255,255,255,0.85) !important;
    transition: var(--transition);
    padding: 0 !important;
}
.ks-navbar .nav-search-link::after { display: none; }
.ks-navbar .nav-search-link:hover {
    background: rgba(255,255,255,0.25);
    color: #ffffff !important;
}

/* ---- HERO ------------------------------------------------- */
.ks-hero {
    background: linear-gradient(135deg, var(--ks-primary-dark) 0%, var(--ks-primary) 45%, var(--ks-primary-light) 75%, var(--ks-fluent-mid) 100%);
    position: relative;
    overflow: hidden;
    padding: 5rem 0 5.5rem;
}
.ks-hero::before {
    content: '';
    position: absolute;
    inset: 0;
    background-image: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='%23ffffff' fill-opacity='0.04'%3E%3Cpath d='M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z'/%3E%3C/g%3E%3C/svg%3E");
    pointer-events: none;
}
.ks-hero::after {
    content: '';
    position: absolute;
    bottom: -1px;
    left: 0;
    right: 0;
    height: 80px;
    background: var(--ks-bg);
    clip-path: ellipse(55% 100% at 50% 100%);
}
.ks-hero-content {
    position: relative;
    z-index: 2;
}
.ks-hero h1 {
    font-size: clamp(1.875rem, 4.5vw, 3rem);
    font-weight: 800;
    color: #ffffff;
    letter-spacing: -0.03em;
    line-height: 1.12;
    margin-bottom: 1.125rem;
}
.ks-hero .lead {
    color: rgba(255,255,255,0.78);
    font-size: 1.05rem;
    font-weight: 400;
    margin-bottom: 2rem;
    line-height: 1.65;
}
.ks-btn-hero-primary {
    background: var(--ks-accent);
    color: #ffffff;
    border: none;
    border-radius: 2rem;
    padding: 0.75rem 2rem;
    font-weight: 700;
    font-size: 0.95rem;
    transition: var(--transition);
    box-shadow: 0 4px 20px rgba(245,158,11,0.45);
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
}
.ks-btn-hero-primary:hover {
    background: var(--ks-accent-dark);
    color: #ffffff;
    transform: translateY(-2px);
    box-shadow: 0 8px 28px rgba(245,158,11,0.55);
    text-decoration: none;
}
.ks-btn-hero-outline {
    background: transparent;
    color: #ffffff;
    border: 2px solid rgba(255,255,255,0.45);
    border-radius: 2rem;
    padding: 0.75rem 2rem;
    font-weight: 600;
    font-size: 0.95rem;
    transition: var(--transition);
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
}
.ks-btn-hero-outline:hover {
    background: rgba(255,255,255,0.14);
    border-color: rgba(255,255,255,0.75);
    color: #ffffff;
    text-decoration: none;
}
.ks-hero-graphic {
    position: relative;
    z-index: 2;
    display: flex;
    align-items: center;
    justify-content: center;
}
.ks-hero-orb {
    width: 220px;
    height: 220px;
    background: rgba(255,255,255,0.10);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    border: 2px solid rgba(255,255,255,0.18);
    backdrop-filter: blur(8px);
    font-size: 5.5rem;
    color: rgba(255,255,255,0.9);
}

/* ---- STATS BAR -------------------------------------------- */
.ks-stats-bar {
    background: var(--ks-surface);
    border-radius: var(--ks-radius-lg);
    box-shadow: var(--ks-shadow-lg);
    padding: 1.5rem 2rem;
    margin-top: -2rem;
    position: relative;
    z-index: 10;
}
.ks-stat {
    text-align: center;
    padding: 0.5rem 1rem;
}
.ks-stat-num {
    font-size: 1.625rem;
    font-weight: 800;
    color: var(--ks-primary);
    line-height: 1;
    display: block;
}
.ks-stat-label {
    font-size: 0.78rem;
    color: var(--ks-muted);
    font-weight: 500;
    margin-top: 0.25rem;
}
.ks-stat-divider {
    width: 1px;
    height: 38px;
    background: var(--ks-border);
    align-self: center;
}

/* ---- SECTION TITLE ---------------------------------------- */
.ks-section-title {
    font-size: 1.375rem;
    font-weight: 700;
    color: var(--ks-dark);
    letter-spacing: -0.02em;
    position: relative;
    padding-left: 1rem;
    margin: 0;
}
.ks-section-title::before {
    content: '';
    position: absolute;
    left: 0;
    top: 50%;
    transform: translateY(-50%);
    width: 4px;
    height: 1.3em;
    background: linear-gradient(180deg, var(--ks-primary-dark) 0%, var(--ks-fluent-sky) 100%);
    border-radius: 2px;
}

/* ---- FEATURE QUICK-LINKS ---------------------------------- */
.ks-feature-card {
    background: var(--ks-surface);
    border: 1px solid var(--ks-border);
    border-radius: var(--ks-radius);
    padding: 1.75rem 1rem;
    text-align: center;
    transition: var(--transition);
    text-decoration: none;
    display: flex;
    flex-direction: column;
    align-items: center;
    height: 100%;
}
.ks-feature-card:hover {
    transform: translateY(-6px);
    box-shadow: var(--ks-shadow-lg);
    border-color: transparent;
    text-decoration: none;
}
.ks-feature-icon {
    width: 62px;
    height: 62px;
    border-radius: 18px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-size: 1.625rem;
    margin-bottom: 0.875rem;
    transition: var(--transition);
}
.ks-feature-card:hover .ks-feature-icon {
    transform: scale(1.1) rotate(-3deg);
}
.fi-blue   { background: var(--ks-light); color: var(--ks-primary); }
.fi-amber  { background: #fffbeb; color: #d97706; }
.fi-green  { background: #f0fdf4; color: #16a34a; }
.fi-purple { background: #faf5ff; color: #9333ea; }
.fi-red    { background: #fff1f2; color: #e11d48; }
.fi-teal   { background: #f0fdfa; color: #0d9488; }
.ks-feature-card .fc-title {
    font-weight: 600;
    font-size: 0.875rem;
    color: var(--ks-dark);
    line-height: 1.3;
}

/* ---- CARD (general) --------------------------------------- */
.ks-card {
    background: var(--ks-surface);
    border: 1px solid var(--ks-border);
    border-radius: var(--ks-radius);
    box-shadow: var(--ks-shadow-sm);
    transition: var(--transition);
    overflow: hidden;
    height: 100%;
}
.ks-card:hover {
    box-shadow: var(--ks-shadow);
    transform: translateY(-3px);
    border-color: rgba(26,79,160,0.12);
}
.ks-card .card-img-top {
    height: 200px;
    object-fit: cover;
    width: 100%;
}

/* ---- PERSON CARD (Committee, Personalities) --------------- */
.ks-person-card {
    background: var(--ks-surface);
    border: 1px solid var(--ks-border);
    border-radius: var(--ks-radius);
    padding: 1.5rem 1.25rem;
    text-align: center;
    transition: var(--transition);
    height: 100%;
    display: flex;
    flex-direction: column;
    align-items: center;
}
.ks-person-card:hover {
    box-shadow: var(--ks-shadow);
    transform: translateY(-4px);
}
.ks-person-avatar {
    width: 84px;
    height: 84px;
    border-radius: 50%;
    object-fit: cover;
    border: 3px solid var(--ks-light);
    box-shadow: 0 2px 12px rgba(0,0,0,0.1);
    margin-bottom: 0.875rem;
}
.ks-person-name {
    font-weight: 700;
    font-size: 0.925rem;
    color: var(--ks-dark);
    margin-bottom: 0.375rem;
}
.ks-person-badge {
    font-size: 0.75rem;
    font-weight: 600;
    background: var(--ks-light);
    color: var(--ks-primary);
    border-radius: 2rem;
    padding: 0.2rem 0.875rem;
    display: inline-block;
}
.ks-person-badge-secondary {
    background: #f1f5f9;
    color: var(--ks-muted);
}

/* ---- ABOUT / INTRO CARD ----------------------------------- */
.ks-about-card {
    background: var(--ks-surface);
    border: 1px solid var(--ks-border);
    border-radius: var(--ks-radius-lg);
    padding: 2rem;
    box-shadow: var(--ks-shadow-sm);
    line-height: 1.8;
    color: var(--ks-muted);
    font-size: 0.95rem;
}

/* ---- GALLERY YEAR BUTTONS --------------------------------- */
.ks-year-btn {
    background: var(--ks-surface);
    border: 2px solid var(--ks-border);
    border-radius: var(--ks-radius);
    padding: 0.625rem 1.5rem;
    font-weight: 600;
    font-size: 0.9rem;
    color: var(--ks-dark);
    transition: var(--transition);
    text-decoration: none;
    display: inline-block;
}
.ks-year-btn:hover {
    border-color: var(--ks-primary);
    color: var(--ks-primary);
    background: var(--ks-light);
    transform: translateY(-2px);
    box-shadow: var(--ks-shadow-sm);
    text-decoration: none;
}

/* ---- VIEW-ALL BUTTON -------------------------------------- */
.btn-ks-outline {
    font-size: 0.8rem;
    font-weight: 600;
    color: var(--ks-primary);
    border: 1.5px solid var(--ks-primary);
    border-radius: 2rem;
    padding: 0.35rem 1.1rem;
    transition: var(--transition);
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    gap: 0.3rem;
}
.btn-ks-outline:hover {
    background: var(--ks-primary);
    color: #ffffff;
    text-decoration: none;
}

/* ---- PAGE HEADER (inner pages) ---------------------------- */
.ks-page-header {
    background: linear-gradient(135deg, var(--ks-primary-dark) 0%, var(--ks-primary) 55%, var(--ks-primary-light) 100%);
    padding: 2.25rem 0;
    margin-bottom: 2rem;
}
.ks-page-header h1 {
    font-size: 1.75rem;
    font-weight: 800;
    color: #ffffff;
    letter-spacing: -0.02em;
    margin: 0;
}

/* ---- FLASH MESSAGES --------------------------------------- */
.ks-flash {
    border-radius: var(--ks-radius);
    border: none;
    font-weight: 500;
}

/* ---- FOOTER ----------------------------------------------- */
.ks-footer {
    background: linear-gradient(160deg, #001F5C 0%, var(--ks-primary-dark) 50%, #002F7A 100%);
    color: rgba(255,255,255,0.80);
    padding-top: 3.5rem;
    margin-top: auto;
}
.ks-footer-brand {
    font-weight: 800;
    font-size: 1.125rem;
    color: #ffffff;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    margin-bottom: 0.875rem;
    text-decoration: none;
}
.ks-footer-brand:hover { color: #ffffff; text-decoration: none; }
.ks-footer-brand .brand-icon {
    width: 34px;
    height: 34px;
    background: rgba(255,255,255,0.15);
    border-radius: 9px;
    display: flex;
    align-items: center;
    justify-content: center;
}
.ks-footer-desc {
    font-size: 0.875rem;
    opacity: 0.65;
    line-height: 1.75;
}
.ks-footer-heading {
    font-size: 0.75rem;
    font-weight: 700;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: rgba(255,255,255,0.45);
    margin-bottom: 1rem;
}
.ks-footer-link {
    color: rgba(255,255,255,0.72);
    text-decoration: none;
    font-size: 0.875rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.3rem 0;
    transition: var(--transition);
}
.ks-footer-link:hover {
    color: #ffffff;
    padding-left: 0.3rem;
    text-decoration: none;
}
.ks-footer-contact {
    font-size: 0.875rem;
    color: rgba(255,255,255,0.72);
    display: flex;
    align-items: flex-start;
    gap: 0.75rem;
    padding: 0.3rem 0;
}
.ks-footer-contact i {
    color: var(--ks-accent);
    font-size: 1rem;
    flex-shrink: 0;
    margin-top: 0.1rem;
}
.ks-footer-bottom {
    background: rgba(0,0,0,0.22);
    padding: 1.25rem 0;
    margin-top: 2.5rem;
    font-size: 0.8rem;
    color: rgba(255,255,255,0.45);
}
.ks-footer-bottom a {
    color: rgba(255,255,255,0.6);
    text-decoration: none;
}
.ks-footer-bottom a:hover { color: #ffffff; }

/* ---- LEGACY CLASS COMPAT (committee, puja, search pages) -- */
.site-bg  { background: var(--ks-bg); }
.site-card {
    border: 1px solid var(--ks-border);
    border-radius: var(--ks-radius);
    background: var(--ks-surface);
    box-shadow: var(--ks-shadow-sm);
    transition: var(--transition);
}
.site-card:hover {
    box-shadow: var(--ks-shadow);
    transform: translateY(-2px);
}
.site-avatar {
    width: 64px;
    height: 64px;
    border-radius: 14px;
    background-color: var(--ks-light);
    background-size: cover;
    background-position: center;
    flex: 0 0 auto;
    border: 1px solid var(--ks-border);
}
.site-cover {
    height: 180px;
    border-top-left-radius: var(--ks-radius);
    border-top-right-radius: var(--ks-radius);
    background-color: var(--ks-light);
    background-size: cover;
    background-position: center;
}
.site-cover-lg {
    height: 100%;
    min-height: 280px;
    background-color: var(--ks-light);
    background-size: cover;
    background-position: center;
    border-top-left-radius: var(--ks-radius);
    border-bottom-left-radius: var(--ks-radius);
}
.site-thumb {
    height: 100%;
    min-height: 110px;
    background-color: var(--ks-light);
    background-size: cover;
    background-position: center;
    border-top-left-radius: var(--ks-radius);
    border-bottom-left-radius: var(--ks-radius);
}
.site-gallery-img {
    height: 180px;
    border-top-left-radius: var(--ks-radius);
    border-top-right-radius: var(--ks-radius);
    background-color: var(--ks-light);
    background-size: cover;
    background-position: center;
}
.site-pill { border-radius: 999px; }

/* suppress old heading styles that may conflict */
main h1::before, main h2::before { display: none; }
main h1, main h2, main h3,
main .h1, main .h2, main .h3, main .h4, main .h5 {
    color: var(--ks-dark);
}

/* ---- RESPONSIVE ------------------------------------------- */
@media (max-width: 991.98px) {
    .ks-navbar .nav-link {
        padding: 0.65rem 1rem !important;
    }
    .ks-navbar .nav-link::after { display: none !important; }
    .ks-hero { padding: 3.5rem 0 4.5rem; }
    .ks-hero::after { height: 50px; }
    .ks-stats-bar { margin-top: 0; border-radius: var(--ks-radius); }
    .site-cover-lg {
        border-top-right-radius: var(--ks-radius);
        border-bottom-left-radius: 0;
        min-height: 220px;
    }
}
@media (max-width: 767.98px) {
    .ks-section-title { font-size: 1.2rem; }
    .ks-hero h1 { font-size: 1.75rem; }
    .ks-stats-bar { padding: 1.25rem 1rem; }
    .ks-stat-num { font-size: 1.375rem; }
    .ks-stat-divider { display: none; }
    .ks-hero-orb { width: 160px; height: 160px; font-size: 4rem; }
}