/* ==========================================================================
   ImpactMojo — Common Header
   Shared, single-source navigation used across every How India Lives page.
   Matches the parent site (impactmojo.in): light bar, Inter + Amaranth,
   sky/teal accent, dark-mode aware, mobile hamburger.
   Namespaced .im-* so it never collides with page-level styles.
   ========================================================================== */

:root {
    --im-accent: #0EA5E9;
    --im-accent-hover: #0284C7;
    --im-header-bg: rgba(255, 255, 255, 0.9);
    --im-header-border: #E2E8F0;
    --im-header-text: #0F172A;
    --im-header-muted: #475569;
    --im-header-menu-bg: #FFFFFF;
    --im-header-hover-bg: #F1F5F9;
}
html[data-theme="dark"] {
    --im-header-bg: rgba(15, 23, 42, 0.9);
    --im-header-border: #334155;
    --im-header-text: #F1F5F9;
    --im-header-muted: #94A3B8;
    --im-header-menu-bg: #1E293B;
    --im-header-hover-bg: #334155;
}

.im-header {
    position: fixed;
    top: 0; left: 0; right: 0;
    z-index: 1200;
    height: 60px;
    background: var(--im-header-bg);
    -webkit-backdrop-filter: blur(12px);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--im-header-border);
}
/* thin brand accent line along the very top */
.im-header::before {
    content: "";
    position: absolute; top: 0; left: 0; right: 0; height: 3px;
    background: linear-gradient(90deg, #0EA5E9, #6366F1, #0EA5E9);
}
.im-nav {
    max-width: 1280px;
    margin: 0 auto;
    height: 100%;
    padding: 0 20px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
}

/* ── Logo ── */
.im-logo {
    display: flex;
    align-items: center;
    gap: 11px;
    text-decoration: none;
    flex-shrink: 0;
}
.im-logo img {
    width: 40px; height: 40px;
    border-radius: 9px;
    object-fit: contain;
    display: block;
}
.im-logo-text { display: flex; flex-direction: column; line-height: 1.15; }
.im-logo-main {
    font-family: 'Inter', system-ui, sans-serif;
    font-size: 1.02rem;
    font-weight: 800;
    color: var(--im-header-text);
    letter-spacing: -0.01em;
}
.im-logo-tagline {
    font-family: 'Inter', system-ui, sans-serif;
    font-size: 0.62rem;
    font-weight: 500;
    color: var(--im-header-muted);
    letter-spacing: 0.02em;
    text-transform: uppercase;
}

/* ── Links ── */
.im-links {
    display: flex;
    align-items: center;
    gap: 4px;
    list-style: none;
    margin: 0; padding: 0;
    flex-wrap: nowrap;
}
.im-links > li { position: relative; }
.im-links a,
.im-dropdown-toggle {
    font-family: 'Inter', system-ui, sans-serif;
    font-size: 0.86rem;
    font-weight: 500;
    color: var(--im-header-muted);
    text-decoration: none;
    padding: 8px 12px;
    border-radius: 8px;
    transition: color .18s, background .18s;
    display: inline-flex;
    align-items: center;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    white-space: nowrap;
}
.im-links a:hover,
.im-dropdown-toggle:hover,
.im-links a:focus-visible {
    color: var(--im-accent);
    background: var(--im-header-hover-bg);
}
.im-links a.im-active {
    color: var(--im-accent);
    font-weight: 700;
}
.im-links a.im-active::after {
    content: "";
    position: absolute;
    left: 12px; right: 12px; bottom: 2px;
    height: 2px;
    background: var(--im-accent);
    border-radius: 2px;
}
.im-dropdown-arrow { width: 13px; height: 13px; transition: transform .18s; }
.im-has-dropdown.im-open .im-dropdown-arrow { transform: rotate(180deg); }

/* ── Dropdown menu ── */
.im-dropdown {
    position: absolute;
    top: calc(100% + 6px);
    right: 0;
    min-width: 210px;
    background: var(--im-header-menu-bg);
    border: 1px solid var(--im-header-border);
    border-radius: 12px;
    box-shadow: 0 12px 32px rgba(15, 23, 42, 0.16);
    padding: 6px;
    list-style: none;
    margin: 0;
    opacity: 0;
    visibility: hidden;
    transform: translateY(-6px);
    transition: opacity .18s, transform .18s, visibility .18s;
}
.im-has-dropdown.im-open .im-dropdown {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}
.im-dropdown li a {
    display: block;
    width: 100%;
    padding: 9px 12px;
    border-radius: 8px;
    font-size: 0.85rem;
    color: var(--im-header-text);
}
.im-dropdown li a:hover { color: var(--im-accent); }
.im-dropdown-label {
    display: block;
    padding: 6px 12px 4px;
    font-size: 0.66rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    color: var(--im-header-muted);
}
.im-dropdown .im-ext::after {
    content: " ↗";
    font-size: 0.72em;
    opacity: 0.6;
}

/* ── Right-side actions ── */
.im-actions { display: flex; align-items: center; gap: 10px; flex-shrink: 0; }
.im-menu-extra { display: none; }

.im-theme {
    display: flex;
    gap: 2px;
    background: var(--im-header-hover-bg);
    border: 1px solid var(--im-header-border);
    border-radius: 9px;
    padding: 3px;
}
.im-theme-btn {
    background: transparent;
    border: none;
    color: var(--im-header-muted);
    padding: 6px;
    border-radius: 6px;
    cursor: pointer;
    transition: all .18s;
    display: flex;
    align-items: center;
    justify-content: center;
    width: 30px; height: 30px;
}
.im-theme-btn:hover { color: var(--im-accent); background: var(--im-header-menu-bg); }
.im-theme-btn.im-active { background: var(--im-accent); color: #fff; }
.im-theme-btn svg { width: 16px; height: 16px; }

/* ── Language toggle ── */
.im-lang {
    font-family: 'Inter', system-ui, sans-serif;
    font-size: 0.78rem;
    font-weight: 700;
    color: var(--im-header-muted);
    background: var(--im-header-hover-bg);
    border: 1px solid var(--im-header-border);
    border-radius: 9px;
    padding: 7px 11px;
    cursor: pointer;
    transition: color .18s, border-color .18s;
    min-width: 42px;
}
.im-lang:hover { color: var(--im-accent); border-color: var(--im-accent); }

/* ── Hamburger ── */
.im-burger {
    display: none;
    flex-direction: column;
    justify-content: center;
    gap: 5px;
    width: 40px; height: 40px;
    background: none;
    border: 1px solid var(--im-header-border);
    border-radius: 9px;
    cursor: pointer;
    padding: 0 9px;
}
.im-burger span {
    display: block;
    height: 2px;
    width: 100%;
    background: var(--im-header-text);
    border-radius: 2px;
    transition: transform .22s, opacity .22s;
}
.im-header.im-menu-open .im-burger span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.im-header.im-menu-open .im-burger span:nth-child(2) { opacity: 0; }
.im-header.im-menu-open .im-burger span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ── Mobile ── */
@media (max-width: 860px) {
    .im-burger { display: flex; }
    .im-links {
        position: fixed;
        top: 60px; left: 0; right: 0;
        flex-direction: column;
        align-items: stretch;
        gap: 2px;
        background: var(--im-header-menu-bg);
        border-bottom: 1px solid var(--im-header-border);
        box-shadow: 0 12px 32px rgba(15, 23, 42, 0.16);
        padding: 10px 14px 16px;
        max-height: calc(100vh - 60px);
        overflow-y: auto;
        transform: translateY(-12px);
        opacity: 0;
        visibility: hidden;
        transition: opacity .2s, transform .2s, visibility .2s;
    }
    .im-header.im-menu-open .im-links {
        transform: translateY(0);
        opacity: 1;
        visibility: visible;
    }
    .im-links a, .im-dropdown-toggle { width: 100%; font-size: 0.95rem; padding: 11px 12px; }
    .im-links a.im-active::after { display: none; }
    .im-dropdown {
        position: static;
        opacity: 1; visibility: visible; transform: none;
        box-shadow: none; border: none;
        min-width: 0; padding: 0 0 4px 10px;
        display: none;
    }
    .im-has-dropdown.im-open .im-dropdown { display: block; }
    .im-logo-tagline { display: none; }

    /* Declutter the top bar: theme + language move into the menu, leaving logo + burger */
    .im-actions .im-theme, .im-actions .im-lang { display: none; }
    .im-menu-extra {
        display: flex; align-items: center; gap: 14px;
        margin-top: 8px; padding: 12px; border-top: 1px solid var(--im-header-border);
    }
    .im-menu-extra .im-lang { min-width: 52px; }
}
@media (max-width: 380px) {
    .im-logo-main { font-size: 0.95rem; }
    .im-logo img { width: 34px; height: 34px; }
}