/* ============================================
   HEADER KIP - Kampung Inggris Plus
   Optimized by Teguh Gunawan
   ============================================ */

#header-kip {
    background: #FFFFFF;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 99999;
    font-family: 'Plus Jakarta Sans', sans-serif;
    box-shadow: 0 2px 20px rgba(0, 0, 0, 0.08);
    border-bottom: 1px solid rgba(32, 73, 208, 0.1);
}

/* Body padding for fixed header */
body.has-fixed-header {
    padding-top: 85px;
}

@media (max-width: 768px) {
    body.has-fixed-header {
        padding-top: 70px;
    }
}

@media (max-width: 480px) {
    body.has-fixed-header {
        padding-top: 62px;
    }
}

#header-kip .header-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 12px 20px;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

#header-kip .header-logo img {
    height: 45px;
    width: auto;
    transition: transform 0.3s ease;
}

#header-kip .header-logo:hover img {
    transform: scale(1.05);
}

#header-kip .header-nav {
    display: flex;
}

#header-kip .nav-menu {
    display: flex;
    list-style: none;
    margin: 0;
    padding: 0;
    gap: 8px;
}

#header-kip .nav-menu > li {
    position: relative;
}

#header-kip .nav-menu > li > a {
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 10px 16px;
    color: #1e293b;
    text-decoration: none;
    font-size: 15px;
    font-weight: 600;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    border-radius: 8px;
    position: relative;
}

/* Hover underline animation */
#header-kip .nav-menu > li > a::after {
    content: '';
    position: absolute;
    bottom: 6px;
    left: 16px;
    right: 16px;
    height: 2px;
    background: linear-gradient(90deg, #2049D0, #3b82f6);
    transform: scaleX(0);
    transform-origin: right;
    transition: transform 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    border-radius: 2px;
}

#header-kip .nav-menu > li > a:hover {
    color: #2049D0;
}

#header-kip .nav-menu > li > a:hover::after {
    transform: scaleX(1);
    transform-origin: left;
}

#header-kip .nav-menu > li > a svg {
    width: 12px;
    height: 12px;
    transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    color: #64748b;
}

#header-kip .has-submenu:hover > a svg {
    transform: rotate(180deg);
    color: #2049D0;
}

/* Dropdown */
#header-kip .submenu {
    position: absolute;
    top: calc(100% + 8px);
    left: 0;
    background: #FFFFFF;
    min-width: 220px;
    border-radius: 12px;
    box-shadow: 0 15px 50px rgba(32, 73, 208, 0.15), 0 5px 15px rgba(0, 0, 0, 0.08);
    list-style: none;
    margin: 0;
    padding: 10px 0;
    opacity: 0;
    visibility: hidden;
    transform: translateY(15px) scale(0.95);
    transition: all 0.35s cubic-bezier(0.4, 0, 0.2, 1);
    z-index: 100000;
    border: 1px solid rgba(32, 73, 208, 0.08);
}

#header-kip .submenu::before {
    content: '';
    position: absolute;
    top: -6px;
    left: 24px;
    width: 12px;
    height: 12px;
    background: #FFFFFF;
    transform: rotate(45deg);
    border-left: 1px solid rgba(32, 73, 208, 0.08);
    border-top: 1px solid rgba(32, 73, 208, 0.08);
}

#header-kip .has-submenu:hover .submenu {
    opacity: 1;
    visibility: visible;
    transform: translateY(0) scale(1);
}

#header-kip .submenu li {
    opacity: 0;
    transform: translateX(-10px);
    transition: all 0.3s ease;
}

#header-kip .has-submenu:hover .submenu li {
    opacity: 1;
    transform: translateX(0);
}

#header-kip .has-submenu:hover .submenu li:nth-child(1) { transition-delay: 0.05s; }
#header-kip .has-submenu:hover .submenu li:nth-child(2) { transition-delay: 0.1s; }
#header-kip .has-submenu:hover .submenu li:nth-child(3) { transition-delay: 0.15s; }
#header-kip .has-submenu:hover .submenu li:nth-child(4) { transition-delay: 0.2s; }
#header-kip .has-submenu:hover .submenu li:nth-child(5) { transition-delay: 0.25s; }

#header-kip .submenu li a {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 12px 20px;
    color: #334155;
    text-decoration: none;
    font-size: 14px;
    font-weight: 500;
    transition: all 0.25s ease;
    position: relative;
}

#header-kip .submenu li a::before {
    content: '';
    position: absolute;
    left: 0;
    top: 50%;
    transform: translateY(-50%);
    width: 3px;
    height: 0;
    background: linear-gradient(180deg, #2049D0, #3b82f6);
    border-radius: 0 3px 3px 0;
    transition: height 0.25s ease;
}

#header-kip .submenu li a:hover {
    background: linear-gradient(90deg, rgba(32, 73, 208, 0.08), transparent);
    color: #2049D0;
    padding-left: 24px;
}

#header-kip .submenu li a:hover::before {
    height: 60%;
}

/* Mobile Toggle */
#header-kip .mobile-toggle {
    display: none;
    flex-direction: column;
    gap: 6px;
    background: transparent;
    border: none;
    cursor: pointer;
    padding: 8px;
    position: relative;
    width: 40px;
    height: 40px;
    justify-content: center;
    align-items: center;
    border-radius: 8px;
    transition: background 0.3s ease;
}

#header-kip .mobile-toggle:hover {
    background: rgba(32, 73, 208, 0.08);
}

#header-kip .mobile-toggle .bar {
    width: 22px;
    height: 2px;
    background: #1e293b;
    transition: all 0.4s cubic-bezier(0.68, -0.6, 0.32, 1.6);
    border-radius: 2px;
    position: absolute;
}

#header-kip .mobile-toggle .bar:nth-child(1) { top: 12px; }
#header-kip .mobile-toggle .bar:nth-child(2) { top: 19px; }
#header-kip .mobile-toggle .bar:nth-child(3) { top: 26px; }

#header-kip .mobile-toggle.active .bar { background: #2049D0; }
#header-kip .mobile-toggle.active .bar:nth-child(1) { top: 19px; transform: rotate(135deg); }
#header-kip .mobile-toggle.active .bar:nth-child(2) { opacity: 0; transform: translateX(20px); }
#header-kip .mobile-toggle.active .bar:nth-child(3) { top: 19px; transform: rotate(-135deg); }

/* Mobile Navigation */
#header-kip .mobile-nav {
    display: none;
    background: #FFFFFF;
    border-radius: 0 0 20px 20px;
    box-shadow: 0 20px 50px rgba(32, 73, 208, 0.12);
    overflow: hidden;
    max-height: 0;
    opacity: 0;
    transition: all 0.5s cubic-bezier(0.4, 0, 0.2, 1);
    border-top: 1px solid rgba(32, 73, 208, 0.08);
}

#header-kip .mobile-nav.active {
    max-height: 600px;
    opacity: 1;
}

#header-kip .mobile-menu {
    list-style: none;
    margin: 0;
    padding: 20px 0;
}

#header-kip .mobile-menu > li {
    opacity: 0;
    transform: translateY(-10px);
    transition: all 0.4s ease;
}

#header-kip .mobile-nav.active .mobile-menu > li {
    opacity: 1;
    transform: translateY(0);
}

#header-kip .mobile-nav.active .mobile-menu > li:nth-child(1) { transition-delay: 0.1s; }
#header-kip .mobile-nav.active .mobile-menu > li:nth-child(2) { transition-delay: 0.15s; }
#header-kip .mobile-nav.active .mobile-menu > li:nth-child(3) { transition-delay: 0.2s; }
#header-kip .mobile-nav.active .mobile-menu > li:nth-child(4) { transition-delay: 0.25s; }
#header-kip .mobile-nav.active .mobile-menu > li:nth-child(5) { transition-delay: 0.3s; }

#header-kip .mobile-menu > li > a,
#header-kip .mobile-menu > li > .submenu-toggle {
    display: flex;
    align-items: center;
    padding: 14px 24px;
    color: #1e293b;
    text-decoration: none;
    font-size: 15px;
    font-weight: 600;
    transition: all 0.3s ease;
    cursor: pointer;
    background: transparent;
    border: none;
    width: 100%;
    text-align: left;
    position: relative;
    font-family: 'Plus Jakarta Sans', sans-serif;
}

#header-kip .mobile-menu .menu-icon {
    width: 20px;
    height: 20px;
    margin-right: 12px;
    color: #2049D0;
}

#header-kip .mobile-menu > li > a > span,
#header-kip .mobile-menu > li > .submenu-toggle > span {
    flex-grow: 1;
}

#header-kip .mobile-menu > li > .submenu-toggle > .arrow {
    color: #94a3b8;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    margin-left: auto;
}

#header-kip .mobile-menu > li > .submenu-toggle.active > .arrow {
    transform: rotate(180deg);
    color: #2049D0;
}

#header-kip .mobile-menu > li > a:hover,
#header-kip .mobile-menu > li > .submenu-toggle:hover {
    background: linear-gradient(90deg, rgba(32, 73, 208, 0.08), transparent);
    color: #2049D0;
}

#header-kip .mobile-menu > li > a::before,
#header-kip .mobile-menu > li > .submenu-toggle::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0;
    bottom: 0;
    width: 3px;
    background: linear-gradient(180deg, #2049D0, #3b82f6);
    transform: scaleY(0);
    transition: transform 0.3s ease;
    border-radius: 0 3px 3px 0;
}

#header-kip .mobile-menu > li > a:hover::before,
#header-kip .mobile-menu > li > .submenu-toggle:hover::before {
    transform: scaleY(1);
}

/* Mobile Submenu */
#header-kip .mobile-submenu {
    list-style: none;
    margin: 0;
    padding: 0;
    background: linear-gradient(180deg, #f8fafc, #f1f5f9);
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

#header-kip .mobile-submenu.active {
    max-height: 350px;
}

#header-kip .mobile-submenu li {
    border-bottom: 1px solid rgba(32, 73, 208, 0.05);
}

#header-kip .mobile-submenu li:last-child {
    border-bottom: none;
}

#header-kip .mobile-submenu li a {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 14px 24px 14px 56px;
    color: #475569;
    text-decoration: none;
    font-size: 14px;
    font-weight: 500;
    transition: all 0.3s ease;
    position: relative;
}

#header-kip .mobile-submenu li a::before {
    content: '';
    position: absolute;
    left: 36px;
    top: 50%;
    transform: translateY(-50%);
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: #cbd5e1;
    transition: all 0.3s ease;
}

#header-kip .mobile-submenu li a:hover {
    background: rgba(32, 73, 208, 0.08);
    color: #2049D0;
    padding-left: 62px;
}

#header-kip .mobile-submenu li a:hover::before {
    background: #2049D0;
    transform: translateY(-50%) scale(1.3);
}

/* Mobile CTA */
#header-kip .mobile-cta {
    padding: 8px 24px 24px;
    opacity: 0;
    transform: translateY(-10px);
    transition: all 0.4s ease 0.35s;
}

#header-kip .mobile-nav.active .mobile-cta {
    opacity: 1;
    transform: translateY(0);
}

#header-kip .mobile-cta a {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    padding: 14px 24px;
    background: linear-gradient(135deg, #2049D0, #1e3a8a);
    color: #FFFFFF !important;
    font-size: 15px;
    font-weight: 600;
    text-decoration: none;
    border-radius: 12px;
    box-shadow: 0 4px 20px rgba(32, 73, 208, 0.3);
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

#header-kip .mobile-cta a::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
    transition: left 0.5s ease;
}

#header-kip .mobile-cta a:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 30px rgba(32, 73, 208, 0.4);
}

#header-kip .mobile-cta a:hover::before {
    left: 100%;
}

/* Responsive */
@media (max-width: 968px) {
    #header-kip .header-nav {
        display: none;
    }
    
    #header-kip .mobile-toggle {
        display: flex;
    }
    
    #header-kip .mobile-nav {
        display: block;
    }
}

@media (max-width: 480px) {
    #header-kip .header-logo img {
        height: 38px;
    }
    
    #header-kip .header-container {
        padding: 10px 16px;
    }
}