body {
    background-color: #0a0f1d;
    color: #f1f5f9;
    font-family: "Inter", "Helvetica Neue", Helvetica, Arial, sans-serif;
    scrollbar-width: thin;
    scrollbar-color: rgba(59, 130, 246, 0.3) rgba(15, 23, 40, 0.4);
}
body::-webkit-scrollbar {
    width: 8px;
}
body::-webkit-scrollbar-track {
    background: rgba(10, 15, 29, 1);
}
body::-webkit-scrollbar-thumb {
    background-color: rgba(59, 130, 246, 0.3);
    border-radius: 9999px;
    border: 2px solid rgba(10, 15, 29, 1);
}
body::-webkit-scrollbar-thumb:hover {
    background-color: rgba(59, 130, 246, 0.6);
}

details summary::-webkit-details-marker {
    display: none;
}

:root {
    --iku-bg: #080d18;
    --iku-surface: #0f1728;
    --iku-surface-2: #121d32;
    --iku-border: rgba(148, 163, 184, .14);
    --iku-blue: #3b82f6;
    --iku-blue-bright: #60a5fa;
    --iku-text: #f8fafc;
    --iku-muted: #94a3b8;
    --iku-nav-h: 80px;
}

html { 
    scroll-padding-top: 104px; 
}

body {
    font-family: "Source Sans 3", "Helvetica Neue", Helvetica, Arial, sans-serif !important;
    background:
        radial-gradient(circle at 50% -10%, rgba(37, 99, 235, .13), transparent 34rem),
        var(--iku-bg);
    letter-spacing: 0.005em;
}

::selection { background: rgba(59, 130, 246, .85); color: white; }

section, #services { padding-top: 4.5rem !important; padding-bottom: 4.5rem !important; }
#contact { padding-top: 5.5rem !important; padding-bottom: 5.5rem !important; }
nav { background: rgba(8, 13, 24, .78) !important; border-bottom-color: rgba(148,163,184,.10) !important; box-shadow: 0 10px 30px rgba(0,0,0,.16); }
nav .hidden.md\:flex > a, nav .hidden.md\:flex .group > a {
    transition: color .2s ease, background .2s ease, border-color .2s ease, box-shadow .2s ease;
    border: 1px solid transparent;
    border-radius: 9px;
    padding: .55rem .8rem;
}
nav > div { height: 68px !important; }
nav img { height: 52px !important; }
nav span.text-2xl { font-size: 1.05rem !important; }

h1, h2, h3, h4, h5, h6, nav, button, summary { font-family: "Source Sans 3", "Helvetica Neue", Helvetica, Arial, sans-serif !important; }
h1, h2, h3, h4 { letter-spacing: -0.018em; }

/* Hero */
section:first-of-type {
    min-height: 78vh;
    display: flex;
    align-items: center;
    position: relative;
    overflow: hidden;
}
section:first-of-type::before {
    content: "";
    position: absolute;
    width: 520px;
    height: 520px;
    left: 50%;
    top: 42%;
    transform: translate(-50%, -50%);
    background: radial-gradient(circle, rgba(37,99,235,.11), transparent 68%);
    pointer-events: none;
}
section:first-of-type > div { position: relative; z-index: 1; }

details, #why-us > div > div > div {
    transition: transform .25s ease, border-color .25s ease, background .25s ease, box-shadow .25s ease;
}
details:hover, #why-us > div > div > div:hover {
    transform: translateY(-2px);
    box-shadow: 0 18px 50px rgba(0,0,0,.18);
}
details[open] {
    border-color: rgba(59,130,246,.38) !important;
    background: rgba(15,23,40,.78) !important;
}
details summary { outline: none; }
details summary:focus-visible {
    outline: 2px solid var(--iku-blue);
    outline-offset: 5px;
    border-radius: 10px;
}

section > div > .text-center { margin-bottom: 2.25rem !important; }
#services > .text-center { margin-bottom: 2.25rem !important; }
#services .space-y-6 { gap: .75rem !important; }
#outcomes .space-y-4 { gap: .6rem !important; }

#why-us > div > div > div { padding: 1.5rem !important; }

#about img { filter: saturate(.82) contrast(1.04); }
#about .aspect-square { min-height: 280px; }

#contact {
    background:
        radial-gradient(circle at 50% 0%, rgba(37,99,235,.12), transparent 32rem),
        rgba(2,6,23,.78) !important;
}
#contact > div { position: relative; }

#iku-progress {
    position: fixed;
    top: 0;
    left: 0;
    width: 0;
    height: 4px;
    z-index: 100;
    background: linear-gradient(90deg, #2563eb, #60a5fa);
    box-shadow: 0 0 18px rgba(59,130,246,.9), 0 0 5px rgba(96,165,250,.75);
}

.iku-reveal {
    opacity: 0;
    transform: translateY(16px);
    transition: opacity .65s ease, transform .65s ease;
}
.iku-reveal.iku-visible {
    opacity: 1;
    transform: translateY(0);
}

nav .iku-top-link { 
    position: relative; 
    display: inline-flex; 
    align-items: center; 
    min-height: 38px; 
    padding: 7px 10px; 
    border: 1px solid transparent; 
    border-radius: 9px; 
    transition: all .2s ease; 
}
nav .iku-top-link:hover { 
    color: #fff; 
    background: rgba(30,41,59,.55); 
    border-color: rgba(71,85,105,.65); 
}
nav .iku-nav-active {
    color: #ffffff !important;
    background: rgba(37, 99, 235, 0.28) !important;
    border: 1px solid rgba(96, 165, 250, 0.65) !important;
    box-shadow: 0 0 20px rgba(59, 130, 246, 0.35), inset 0 1px 0 rgba(255, 255, 255, 0.15);
    padding: .55rem .8rem;
    border-radius: 9px;
    text-shadow: 0 0 10px rgba(255, 255, 255, 0.5);
    font-weight: 600;
}

.iku-core-trigger::after { 
    content: ""; 
    width: 7px; 
    height: 7px; 
    margin-left: 8px; 
    border-right: 1.5px solid currentColor; 
    border-bottom: 1.5px solid currentColor; 
    transform: rotate(45deg) translateY(-2px); 
    opacity: .75; 
}
.iku-core-dropdown { width: 290px !important; padding: 8px !important; border-color: rgba(71,85,105,.75) !important; }
.iku-core-dropdown a { border-radius: 8px; }
.iku-core-dropdown a:hover { background: rgba(30,41,59,.9) !important; }

#iku-mobile-toggle {
    display: none;
    width: 42px;
    height: 42px;
    border: 1px solid var(--iku-border);
    border-radius: 10px;
    background: rgba(15,23,40,.75);
    color: white;
    cursor: pointer;
}
#iku-mobile-menu { display: none; }

#iku-mobile-menu .iku-mobile-core-links { margin: -2px 0 4px 14px; padding-left: 10px; border-left: 1px solid rgba(71,85,105,.65); }
#iku-mobile-menu .iku-mobile-core-links a { font-size: 13px; color: #94a3b8; padding-top: 8px; padding-bottom: 8px; }

.iku-standard-section {
    padding: 4.5rem 1.5rem;
}

.iku-custom-scrollbar {
    scrollbar-width: thin;
    scrollbar-color: rgba(59, 130, 246, 0.3) rgba(15, 23, 40, 0.4);
}
.iku-custom-scrollbar::-webkit-scrollbar {
    width: 6px;
}
.iku-custom-scrollbar::-webkit-scrollbar-track {
    background: rgba(15, 23, 40, 0.4);
    border-radius: 9999px;
}
.iku-custom-scrollbar::-webkit-scrollbar-thumb {
    background-color: rgba(59, 130, 246, 0.3);
    border-radius: 9999px;
    border: 1px solid rgba(148, 163, 184, 0.05);
}
.iku-custom-scrollbar::-webkit-scrollbar-thumb:hover {
    background-color: rgba(59, 130, 246, 0.6);
}

/* Sticky Scroll Experience Styles */
.iku-sticky-container {
    height: 250vh;
    position: relative;
}
.iku-sticky-wrapper {
    position: sticky;
    top: 100px;
    height: calc(100vh - 120px);
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
}
.iku-step-card {
    position: absolute;
    width: 100%;
    max-width: 56rem;
    opacity: 0;
    transform: translateY(30px);
    pointer-events: none;
    transition: opacity 0.5s ease, transform 0.5s ease;
}
.iku-step-card.active {
    opacity: 1;
    transform: translateY(0);
    pointer-events: auto;
}

@media (max-width: 767px) {
    section, #services { padding-top: 3.25rem !important; padding-bottom: 3.25rem !important; }
    section:first-of-type { min-height: 82vh; padding-top: 7rem !important; }
    nav > div { height: 62px !important; padding-left: 1rem !important; padding-right: 1rem !important; }
    nav img { height: 44px !important; }
    nav span.text-2xl { display: none; }
    nav .hidden.md\:flex { display: none !important; }
    #iku-mobile-toggle { display: inline-flex; align-items: center; justify-content: center; }
    #iku-mobile-menu {
        position: absolute;
        top: 62px;
        left: 1rem;
        right: 1rem;
        display: grid;
        gap: .25rem;
        padding: .65rem;
        background: rgba(15,23,40,.97);
        border: 1px solid var(--iku-border);
        border-radius: 14px;
        box-shadow: 0 24px 60px rgba(0,0,0,.35);
        opacity: 0;
        visibility: hidden;
        transform: translateY(-6px);
        transition: .2s ease;
    }
    #iku-mobile-menu.is-open {
        opacity: 1;
        visibility: visible;
        transform: translateY(0);
    }
    #iku-mobile-menu a {
        padding: .8rem .9rem;
        border-radius: 9px;
        color: #cbd5e1;
        font-size: .9rem;
        font-weight: 600;
    }
    #services details { padding: 1rem !important; }
    #services details summary h3 { font-size: 1rem !important; }
    #services details summary p { font-size: .75rem !important; line-height: 1.5; }
    #outcomes details { padding: 1rem !important; }
    #outcomes details h3 { font-size: .92rem !important; }
}