/* ============================================================
   OAKOKHO — UNIFIED HEADER & NAV STYLESHEET
   LOCAL COPY — /var/www/learn/css/header.css
   ORIGINAL: scripts.oakokho.com/css/header.css
   LAST REVIEWED: 2026-08-14
   ============================================================ */

/* ============================================================
   HEADER BASE
   ============================================================ */
.main-header {
    background: linear-gradient(135deg, #5b7dd8 0%, #4f6bc4 100%);
    box-shadow: 0 2px 8px rgb(0 0 0 / 0.12);
    position: sticky;
    top: 0;
    z-index: 1000;
}

/* NAV FONT — DIRECT ASSIGNMENT */
.navbar,
.nav-menu li a,
.nav-item-toggle,
.dropdown-item,
.user-pill,
.user-name,
.user-pill-name,
.mobile-menu-toggle,
.main-footer {
    font-family: -apple-system,
        BlinkMacSystemFont,
        'Segoe UI', sans-serif;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

.navbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0.75rem 0;
    gap: 16px;
}

/* ============================================================
   LOGO
   ============================================================ */
.logo a {
    display: flex;
    align-items: center;
    gap: 10px;
    text-decoration: none;
    color: #fff;
    line-height: 1;
}

.logo a i,
.logo a .fa-solid {
    font-size: 1.9rem;
    color: #fff;
}

/* ============================================================
   NAV MENU
   ============================================================ */
.nav-menu {
    display: flex;
    list-style: none;
    gap: 4px;
    align-items: center;
    margin: 0;
    padding: 0;
    flex-wrap: nowrap;
}

.nav-menu li a {
    color: #fff;
    text-decoration: none;
    font-weight: 400;
    font-size: .9rem;
    display: flex;
    align-items: center;
    gap: 5px;
    padding: 7px 12px;
    border-radius: 8px;
    transition: background .2s ease;
    white-space: nowrap;
}

.nav-menu li a:hover,
.nav-menu li a.active {
    background: rgb(255 255 255 / 0.18);
    color: #fff;
    transform: translateY(-1px);
}

/* ============================================================
   MOBILE TOGGLE
   ============================================================ */
.mobile-menu-toggle {
    display: none;
    background: none;
    border: none;
    color: #fff;
    font-size: 1.5rem;
    cursor: pointer;
    padding: 4px 8px;
}

/* ============================================================
   USER PILL
   ============================================================ */
.user-icon-container,
.user-menu {
    position: relative;
    list-style: none;
}

.user-pill,
.user-profile {
    display: flex;
    align-items: center;
    gap: 7px;
    background: rgb(255 255 255 / 0.15);
    border: 1.5px solid rgb(255 255 255 / 0.35);
    color: #fff;
    padding: 6px 14px 6px 10px;
    border-radius: 24px;
    cursor: pointer;
    font-size: .88rem;
    font-weight: 600;
    transition: background .2s ease;
    white-space: nowrap;
    user-select: none;
    text-decoration: none;
}

.user-pill:hover,
.user-profile:hover {
    background: rgb(255 255 255 / 0.28);
    color: #fff;
    transform: none;
}

.user-pill i:first-child,
.user-profile i:first-child {
    font-size: 1.1rem;
}

.user-pill-caret {
    font-size: .7rem;
    opacity: .7;
    transition: transform .2s ease;
}

.user-icon-container.open .user-pill-caret,
.user-menu.open .user-pill-caret {
    transform: rotate(180deg);
}

/* ============================================================
   USER DROPDOWN — CLICK-TRIGGERED VIA .open CLASS
   NO HOVER TRIGGER — AVOIDS THE GAP/DISAPPEAR BUG
   ============================================================ */
.user-dropdown {
    display: none;
    position: absolute;
    top: calc(100% + 8px);
    right: 0;
    background: #ffffff !important;
    background-image: none !important;
    border: 1px solid #e2e8f0;
    border-radius: 12px;
    box-shadow: 0 12px 40px rgb(0 0 0 / 0.18);
    min-width: 220px;
    z-index: 9999;
    color: #1e293b;
    opacity: 1 !important;
    visibility: visible !important;
    transform: none !important;
    transition: none !important;
}

/* OPEN STATE — TOGGLED BY header.js */
.user-icon-container.open .user-dropdown,
.user-menu.open .user-dropdown {
    display: block;
}

.user-dropdown-header {
    padding: 14px 16px 12px;
    border-bottom: 1px solid #e2e8f0;
    background: #f8fafc;
    border-radius: 12px 12px 0 0;
    display: flex;
    flex-direction: column;
    gap: 3px;
}

.user-dropdown-header strong {
    font-size: .92rem;
    font-weight: 700;
    color: #1e293b;
}

.user-dropdown-header small {
    font-size: .76rem;
    color: #64748b;
    word-break: break-all;
}

.user-dropdown a {
    display: flex !important;
    align-items: center;
    gap: 10px;
    padding: 12px 16px !important;
    color: #1e293b !important;
    text-decoration: none;
    font-size: .88rem;
    font-weight: 500;
    background: #ffffff !important;
    transition: background .15s ease;
    border-bottom: 1px solid #f1f5f9 !important;
    border-radius: 0 !important;
    transform: none !important;
}

.user-dropdown a:last-child {
    border-bottom: none !important;
    border-radius: 0 0 12px 12px !important;
}

.user-dropdown a:hover {
    background: #f1f5f9 !important;
    color: #1e293b !important;
    transform: none !important;
}

.user-dropdown a i {
    width: 16px;
    text-align: center;
    color: #64748b;
    font-size: .9rem;
}

.user-dropdown a.logout-link {
    color: #dc2626 !important;
    border-top: 1px solid #e2e8f0 !important;
}

.user-dropdown a.logout-link:hover {
    background: #fef2f2 !important;
    color: #dc2626 !important;
}

.user-dropdown a.logout-link i {
    color: #dc2626;
}

/* ============================================================
   LOGIN BUTTON
   ============================================================ */
.nav-login-btn {
    list-style: none;
}

.btn-login,
.btn-login-nav {
    display: inline-flex !important;
    align-items: center;
    gap: 7px;
    background: rgb(255 255 255 / 0.15);
    border: 1.5px solid rgb(255 255 255 / 0.4);
    color: #fff !important;
    padding: 7px 18px;
    border-radius: 24px;
    font-size: .88rem;
    font-weight: 700;
    text-decoration: none;
    transition: all .2s ease;
    white-space: nowrap;
    cursor: pointer;
}

.btn-login:hover,
.btn-login-nav:hover {
    background: #ffffff;
    color: #5b7dd8 !important;
    border-color: #ffffff;
    transform: none;
}

/* ============================================================
   ADMIN LINK / DIVIDER (SWARGAM)
   ============================================================ */
.admin-link {
    color: #fbbf24 !important;
}

.admin-link:hover {
    background: rgb(251 191 36 / 0.15) !important;
}

.dropdown-divider {
    height: 1px;
    background: #e2e8f0;
    margin: 4px 0;
    list-style: none;
}

/* ============================================================
   MOBILE
   ============================================================ */
@media (max-width: 768px) {
    .mobile-menu-toggle {
        display: block;
    }

    .navbar {
        padding: 0.75rem 16px;
    }

    .nav-menu {
        display: none;
        flex-direction: column;
        align-items: stretch;
        gap: 4px;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background: linear-gradient(135deg, #5b7dd8 0%, #4f6bc4 100%);
        padding: 12px 16px 16px;
        box-shadow: 0 8px 24px rgb(0 0 0 / 0.2);
        z-index: 999;
    }

    .nav-menu.active {
        display: flex;
    }

    .nav-menu li a {
        padding: 10px 14px;
        font-size: .95rem;
    }

    .user-dropdown {
        right: auto;
        left: 0;
        min-width: 200px;
    }

    .user-pill-name {
        display: none;
    }

    .btn-login,
    .btn-login-nav {
        width: 100%;
        justify-content: center;
    }
}

/* ============================================================
   LEARN SUBDOMAIN ADDITIONS — NOT IN SCHOOL SHARED VERSION
   ============================================================ */

/* USER PILL NAME — CODEBASE EQUIVALENT OF SWARGAM'S .user-name */
.user-pill-name {
    font-weight: 700;
    font-size: 0.88rem;
}

/* A) FOOTER + SCROLL-TO-TOP — MOVED OUT TO css/footer.css (LOADED AFTER
   THIS FILE BY includes/header.php). DO NOT RE-ADD FOOTER RULES HERE —
   footer.css LOADS LATER AND WOULD WIN ON EQUAL SPECIFICITY, SO ANYTHING
   PUT BACK HERE LOOKS BROKEN-BUT-PRESENT. THE .main-footer ENTRY IN THE
   NAV-FONT SELECTOR LIST NEAR THE TOP OF THIS FILE STAYS ON PURPOSE — IT
   IS A SHARED MULTI-SELECTOR RULE, NOT A FOOTER-ONLY ONE. */

/* B) NAV DROPDOWNS (DESKTOP) */
.nav-item {
    position: relative;
}

.dropdown {
    display: none;
    position: absolute;
    top: calc(100% + 8px);
    left: 0;
    background: #fff;
    border-radius: 10px;
    min-width: 200px;
    box-shadow: 0 12px 32px rgba(91, 125, 216, 0.15),
        0 2px 8px rgba(0, 0, 0, 0.08);
    border: 1px solid rgba(91, 125, 216, 0.12);
    z-index: 200;
}

.nav-item.open>.dropdown {
    display: block;
}

/* PREFIXED WITH .dropdown TO OUTWEIGH THE .nav-menu li a
   SPECIFICITY (0,1,2) FROM THE SCHOOL BASE RULES ABOVE —
   WITHOUT THIS, .dropdown-item TEXT RENDERS WHITE-ON-WHITE */
.dropdown .dropdown-item {
    display: flex;
    align-items: center;
    padding: 12px 20px;
    color: #3d4852;
    text-decoration: none;
    font-weight: 400;
    font-size: 0.88rem;
    transition: background 0.2s ease;
    white-space: nowrap;
    min-height: 44px;
    touch-action: manipulation;
}

.dropdown .dropdown-item:first-child {
    border-radius: 10px 10px 0 0;
}

.dropdown .dropdown-item:last-child {
    border-radius: 0 0 10px 10px;
}

.dropdown .dropdown-item:hover {
    background: #f0f4ff;
    color: #5b7dd8;
}

/* C) NESTED SUBMENUS (DESKTOP — TTS LEVELS) */
.has-submenu {
    position: relative;
    font-weight: 400;
}

/* MARKUP PUTS .dropdown-item AND .has-submenu ON THE SAME
   ELEMENT (NOT PARENT/CHILD) — SELECTORS MUST TARGET
   .has-submenu DIRECTLY, NOT A CHILD COMBINATOR */
.has-submenu {
    justify-content: space-between;
}

.has-submenu::after {
    content: '\25B6';
    font-size: 0.7em;
    opacity: 0.6;
    margin-left: 8px;
}

.submenu {
    display: none;
    position: absolute;
    left: 100%;
    top: 0;
    background: #fff;
    border-radius: 10px;
    min-width: 220px;
    box-shadow: 0 8px 24px rgba(91, 125, 216, 0.15);
    border: 1px solid rgba(91, 125, 216, 0.12);
    z-index: 201;
}

.has-submenu.open>.submenu {
    display: block;
}

/* D) NAV TOGGLE CARET */
.nav-caret {
    font-size: 0.7rem;
    opacity: 0.7;
    margin-left: 4px;
    transition: transform 0.2s ease;
}

.nav-item.open>.nav-item-toggle .nav-caret {
    transform: rotate(180deg);
}

.nav-item-toggle {
    display: flex;
    align-items: center;
    gap: 5px;
    color: #fff;
    font-weight: 400;
    font-size: 0.9rem;
    padding: 7px 12px;
    border-radius: 8px;
    cursor: pointer;
    background: none;
    border: none;
    white-space: nowrap;
    min-height: 44px;
    touch-action: manipulation;
    transition: background 0.2s ease;
}

.nav-item-toggle:hover {
    background: rgba(255, 255, 255, 0.18);
}

/* E) MOBILE — APP FEEL (MAX-WIDTH: 768PX)
   ALL DROPDOWNS BECOME FULL-WIDTH ACCORDION
   PANELS STACKED VERTICALLY. NO FLYOUTS.
   NO SIDEWAYS SUBMENUS. */
@media (max-width: 768px) {
    .dropdown {
        position: static;
        display: none;
        box-shadow: none;
        border: none;
        border-radius: 0;
        /* DARK (NOT WHITE-TINTED) BACKGROUND — A WHITE-TINTED TRANSPARENT
           BACKGROUND BEHIND WHITE .dropdown-item TEXT WASHED THE ITEMS OUT */
        background: rgba(0, 0, 0, 0.15);
        min-width: 0;
        width: 100%;
    }

    .nav-item.open>.dropdown {
        display: block;
    }

    /* PREFIXED WITH .dropdown TO MATCH THE DESKTOP RULE ABOVE (SEE THE
       SPECIFICITY NOTE AT THE B) NAV DROPDOWNS SECTION) — THE BARE
       .dropdown-item SELECTOR LACKED THE SPECIFICITY TO BEAT THE SHARED
       .nav-menu li a RULE ON MOBILE, LEAVING ITEM TEXT UNREADABLE */
    .dropdown .dropdown-item {
        color: #fff;
        padding: 12px 24px;
        font-size: 0.9rem;
        border-radius: 0;
        background: transparent;
    }

    .dropdown .dropdown-item:hover {
        background: rgba(255, 255, 255, 0.15);
        color: #fff;
    }

    .submenu {
        position: static;
        display: none;
        box-shadow: none;
        border: none;
        border-radius: 0;
        background: rgba(0, 0, 0, 0.20);
        min-width: 0;
        width: 100%;
    }

    .has-submenu.open>.submenu {
        display: block;
    }

    .submenu .dropdown-item {
        color: #fff;
        padding-left: 40px;
        font-weight: 400;
    }

    .has-submenu::after {
        content: '\25BC';
    }

    .has-submenu.open::after {
        content: '\25B2';
    }

    .nav-item-toggle {
        width: 100%;
        padding: 12px 16px;
        font-size: 0.95rem;
        justify-content: space-between;
    }
}

/* F) LOGO WRAPPER — FLEX KILLS INTER-SPAN WHITESPACE.
   THE FOUR COLOURED LETTER SPANS IN includes/header.php SIT ON SEPARATE
   SOURCE LINES, SO IN NORMAL INLINE FLOW THE NEWLINES BETWEEN THEM COLLAPSE
   TO A RENDERED SPACE. MAKING THE WRAPPER A FLEX CONTAINER TURNS THEM INTO
   FLEX ITEMS, WHERE INTER-ITEM WHITESPACE IS DISCARDED. THE WRAPPER ALSO
   CARRIES THESE SAME DECLARATIONS INLINE; THIS RULE IS THE FALLBACK FOR IF
   THE INLINE style ATTRIBUTE IS EVER STRIPPED FROM THE MARKUP. NOTE THE
   gap:10px ON .logo a ABOVE DOES NOT AFFECT THE LETTERS — THE WRAPPER IS
   THAT FLEX CONTAINER'S ONLY CHILD. */
.logo > a > span {
    display: inline-flex;
    font-family: 'Noto Serif Bengali', serif;
    letter-spacing: 0;
    line-height: 1;
}