/* ==========================================================================
   GLOBAL STYLES & RESET, NAV, HEADER and FOOTER STYLES
   ========================================================================== */
:root {
    --font-main: 'Segoe UI', 'Noto Sans Bengali', 'Vrinda', Tahoma, Geneva, Verdana, sans-serif;
}

html {
    height: 100%;
    box-sizing: border-box;
    font-family: var(--font-main);
}

*, *::before, *::after {
    box-sizing: inherit;
}

body {
    margin: 0;
    padding: 0;
    width: 100%;
    min-height: 100vh;
    background-color: #030712;
    scroll-behavior: smooth;
    display: flex;
    flex-direction: column;
    font-family: var(--font-main);
}

button, input, select, textarea {
    font-family: inherit;
}

.main-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    background-color: #0f172a;
    color: #ffffff;
    padding: 15px 40px;
    font-family: var(--font-main);
    box-shadow: 0 4px 12px rgba(0,0,0,0.15);
    position: relative;
    z-index: 10;
    flex-shrink: 0; 
}

.header-left {
    display: flex;
    align-items: center;
    gap: 12px;
}

.header-right {
    display: flex;
    align-items: center;
    gap: 25px;
}

.team-logo {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    object-fit: cover;
}

.nav-link, .current-page {
    color: #cbd5e1;
    text-decoration: none;
    font-size: 15px;
    font-weight: 500;
    transition: color 0.2s ease, border-color 0.2s ease, background-color 0.2s ease;
    border: 1px solid rgba(56, 189, 248, 0.25);
    padding: 6px 12px;
    border-radius: 999px;
    background-color: rgba(15, 23, 42, 0.4);
    display: inline-flex;
    align-items: center;
    gap: 6px;
    line-height: 1.2;
}

.current-page {
    font-weight: 600;
    text-decoration: none;
    color: #e2e8f0;
    background: linear-gradient(90deg, rgba(56, 189, 248, 0.18), rgba(16, 185, 129, 0.18));
    border-color: rgba(56, 189, 248, 0.6);
    box-shadow: 0 0 10px rgba(56, 189, 248, 0.12);
}

.nav-link:hover, .current-page:hover {
    color: #10b981;
    border-color: #38bdf8;
    background-color: rgba(56, 189, 248, 0.1);
    box-shadow: 0 0 12px rgba(56, 189, 248, 0.2);
}

.nav-special-button {
    display: inline-block;
    background-color: #5941c3;
    color: #ffffff; 
    padding: 10px 20px;
    text-decoration: none;
    font-weight: bold;
    font-size: 15px;
    border-radius: 6px;
    box-shadow: 0 0 10px rgba(9, 75, 65, 0.755);
    transition: transform 0.2s ease, background-color 0.2s ease;
    cursor: pointer;
    border: none;
}

.nav-special-button:hover {
    background-color: #0e9489; 
    transform: translateY(-2px);
}

#logged-out-view {
    display: inline-flex;
    gap: 10px;
}

#logged-in-view {
    display: none;
    align-items: center;
    gap: 15px;
}

.user-welcome {
    color: #10b981;
    font-weight: 600;
}

.logout-btn {
    cursor: pointer;
    color: #ef4444;
    border-color: rgba(239, 68, 68, 0.3);
}

.main-footer {
    width: 100%;
    background-color: #030712;
    color: #64748b;
    padding: 40px 60px 50px 60px;
    font-family: var(--font-main);
    font-size: 14px;
    border-top: 1px solid rgba(56, 189, 248, 0.05);
    margin-top: auto; 
    display: flex;
    justify-content: space-between;
    align-items: flex-start; 
    gap: 30px;
    flex-shrink: 0; 
}

.footer-column {
    display: flex;
    flex-direction: column;
    align-items: center; 
}

.footer-left, .footer-right {
    flex: 1;
}

.footer-center {
    flex: 2;
    text-align: center;
    align-self: center;
}

.footer-center p {
    margin: 5px 0;
    color: #94a3b8;
}

.footer-subtext {
    font-size: 12px;
    font-style: italic;
    color: #475569 !important;
}

.footer-column h4 {
    color: #f8fafc;
    font-size: 15px;
    font-weight: 600;
    margin: 0 0 15px 0;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    text-align: center;
}

.footer-column a {
    color: #64748b;
    text-decoration: none;
    margin-bottom: 10px;
    transition: color 0.2s ease, transform 0.2s ease;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
}

.footer-column a:hover {
    color: #38bdf8;
    transform: translateY(-2px);
}

.footer-socials {
    display: flex;
    flex-direction: column;
    align-items: center;
}

@media (max-width: 1400px) {
    .header-right {
        gap: 15px;
    }
}

@media (max-width: 768px) {
    .main-header {
        flex-direction: column;
        gap: 15px;
        padding: 15px 20px;
    }
    
    .header-left, .header-right {
        flex-wrap: wrap;
        justify-content: center;
    }

    .header-right {
        gap: 8px;
    }

    .nav-link, .current-page, .nav-special-button, .lang-switcher-button {
        font-size: 13px;
        padding: 7px 10px;
    }

    .main-footer {
        flex-direction: column;
        text-align: center;
        padding: 40px 20px;
        gap: 35px;
    }

    .footer-center {
        order: 3;
    }

    .footer-column a:hover {
        transform: none;
    }
}

/* =========================================================
   AUTHENTICATION & DASHBOARD DROPDOWN ADDITIONS
   ========================================================= */

#auth-ui-box {
    position: relative;
    display: inline-flex;
    align-items: center;
}

#logged-out-view {
    display: inline-flex;
    gap: 10px;
    align-items: center;
}

#logged-in-view {
    display: inline-flex;
    position: relative;
    align-items: center;
}

.dashboard-btn .dropdown-v-arrow {
    display: inline-block;
    margin-left: 6px;
    font-size: 0.8rem;
    transition: transform 0.2s ease;
}

.dashboard-btn.open .dropdown-v-arrow {
    transform: rotate(180deg);
}

.profile-dropdown-menu {
    position: absolute;
    top: calc(100% + 8px);
    right: 0;
    min-width: 200px;
    background: #0f172a;
    border: 1px solid rgba(56, 189, 248, 0.3);
    border-radius: 8px;
    padding: 8px 0;
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.5);
    display: none;
    flex-direction: column;
    z-index: 1000;
}

.profile-dropdown-menu.active {
    display: flex;
}

.dropdown-user-header {
    padding: 8px 16px;
    font-size: 0.85rem;
}

.dropdown-item {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 10px 16px;
    color: #f8fafc;
    text-decoration: none;
    font-size: 0.9rem;
    background: transparent;
    border: none;
    width: 100%;
    text-align: left;
    cursor: pointer;
    transition: background 0.2s ease, color 0.2s ease;
}

.dropdown-item:hover {
    background: rgba(56, 189, 248, 0.15);
    color: #38bdf8;
}

.dropdown-item.logout-btn-item {
    color: #ef4444;
}

.dropdown-item.logout-btn-item:hover {
    background: rgba(239, 68, 68, 0.15);
    color: #f87171;
}

.dropdown-divider {
    height: 1px;
    background: rgba(255, 255, 255, 0.1);
    margin: 6px 0;
}

/* =========================================================
   LANGUAGE SWITCHER STYLES
   ========================================================= */

.lang-dropdown-wrapper {
    position: relative;
    display: inline-flex;
    align-items: center;
}

.lang-switcher-button {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    background: linear-gradient(135deg, rgba(16, 185, 129, 0.15), rgba(56, 189, 248, 0.15));
    color: #0cc57e;
    padding: 6px 12px;
    font-size: 14px;
    font-weight: 600;
    border: 1px solid rgba(56, 189, 248, 0.5);
    border-radius: 20px;
    cursor: pointer;
    transition: all 0.25s ease;
    box-shadow: 0 0 8px rgba(56, 189, 248, 0.15);
}

.lang-switcher-button:hover {
    background: linear-gradient(135deg, rgba(16, 185, 129, 0.3), rgba(56, 189, 248, 0.3));
    color: #ffffff;
    border-color: #10b981;
    box-shadow: 0 0 12px rgba(16, 185, 129, 0.3);
    transform: translateY(-1px);
}

.lang-dropdown-menu {
    position: absolute;
    top: calc(100% + 8px);
    right: 0;
    min-width: 130px;
    background: #0f172a;
    border: 1px solid rgba(56, 189, 248, 0.3);
    border-radius: 8px;
    padding: 6px 0;
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.5);
    display: none;
    flex-direction: column;
    z-index: 1000;
}

.lang-dropdown-menu.active {
    display: flex;
}

html[lang="en"] [lang="bn"],
html[lang="bn"] [lang="en"] {
    display: none !important;
}

html[lang="bn"] [lang="bn"] {
    font-family: 'Noto Sans Bengali', 'Vrinda', var(--font-main);
}

.lang-option {
    font-size: 0.85rem;
    padding: 8px 14px;
}

.lang-option.active-lang {
    color: #10b981;
    font-weight: bold;
}

.flag-icon {
    font-size: 1.1rem;
}

/* =========================================================
   SEO: BREADCRUMBS + SKIP LINK + DISCOVERABILITY
   ========================================================= */
.skip-link {
    position: absolute;
    top: -100px;
    left: 8px;
    background: #38bdf8;
    color: #030712;
    padding: 8px 14px;
    border-radius: 6px;
    font-weight: 700;
    z-index: 10000;
    text-decoration: none;
}
.skip-link:focus {
    top: 8px;
}

.breadcrumbs {
    max-width: 1200px;
    margin: 14px auto 0;
    padding: 0 24px;
    font-size: 13px;
    color: #94a3b8;
}
.breadcrumbs ol {
    list-style: none;
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
    margin: 0;
    padding: 0;
    align-items: center;
}
.breadcrumbs li {
    display: inline-flex;
    align-items: center;
    gap: 6px;
}
.breadcrumbs li + li::before {
    content: "/";
    color: #475569;
    margin-right: 6px;
}
.breadcrumbs a {
    color: #38bdf8;
    text-decoration: none;
    transition: color 0.2s;
}
.breadcrumbs a:hover {
    color: #10b981;
    text-decoration: underline;
}
.breadcrumbs [aria-current="page"] {
    color: #e2e8f0;
    font-weight: 600;
}

/* SEO footer — keyword rich internal linking cluster */
.seo-cluster {
    width: 100%;
    background: #020617;
    border-top: 1px solid rgba(148,163,184,0.08);
    padding: 28px 60px 18px;
    font-size: 13px;
    color: #64748b;
}
.seo-cluster-inner {
    max-width: 1200px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: 22px;
}
.seo-cluster h4 {
    color: #e2e8f0;
    font-size: 13px;
    text-transform: uppercase;
    letter-spacing: 0.6px;
    margin: 0 0 10px;
}
.seo-cluster a {
    display: block;
    color: #94a3b8;
    text-decoration: none;
    margin-bottom: 6px;
    transition: color 0.2s;
}
.seo-cluster a:hover {
    color: #38bdf8;
}
.seo-cluster-note {
    max-width: 1200px;
    margin: 18px auto 0;
    padding-top: 14px;
    border-top: 1px solid rgba(148,163,184,0.06);
    color: #475569;
    font-size: 12px;
    line-height: 1.6;
    text-align: center;
}
@media (max-width: 768px) {
    .seo-cluster {
        padding: 24px 20px 14px;
    }
    .breadcrumbs {
        padding: 0 16px;
    }
}

/* Bangla SEO intro blocks — crawlable Bangla content for Bangladesh search queries */
.bangla-seo-intro {
    max-width: 900px;
    margin: 0 auto;
    padding: 40px 24px;
    color: var(--text-secondary, #94a3b8);
    line-height: 1.9;
}
.bangla-seo-intro h2 {
    font-size: 1.6rem;
    margin-bottom: 16px;
    color: #e2e8f0;
    line-height: 1.4;
}
.bangla-seo-intro p {
    font-size: 1rem;
    margin-bottom: 14px;
}
.bangla-seo-intro strong {
    color: #67e8f9;
    font-weight: 600;
}
@media (max-width: 768px) {
    .bangla-seo-intro {
        padding: 28px 18px;
    }
    .bangla-seo-intro h2 {
        font-size: 1.3rem;
    }
}

/* Bangla FAQ accent */
.bangla-faq-item {
    border-left: 3px solid #22d3ee;
    padding-left: 16px;
    margin: 18px 0;
}
.bangla-faq-item h3 {
    font-size: 1.15rem;
    color: #67e8f9;
    margin-bottom: 6px;
    line-height: 1.5;
}
.bangla-faq-item p {
    margin: 0;
}