/* 
   Premium Samsung-Inspired Theme 
   Supporting Light Mode (Default) & Dark Mode 
*/

:root {
    /* Light Theme Variables */
    --bg-primary: #FFFFFF;
    --bg-secondary: #F8FAFF;
    /* Soft premium aura glow instead of gray */
    --bg-tertiary: #F1F5F9;

    --text-primary: #1E293B;
    /* Deep Slate Navy instead of harsh black */
    --text-secondary: #475569;
    /* Slate Grey */
    --text-inverse: #FFFFFF;

    --accent-color: #000000;
    /* Primary buttons black in light mode */
    --accent-hover: #333333;
    --accent-blue: #7C3AED;
    /* Premium Brand Purple */
    /* Samsung-like active/link blue */

    --border-color: #E0E0E0;

    --font-family: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    --transition: all 0.3s ease-in-out;
    --border-radius-lg: 24px;
    --border-radius-md: 16px;
    --border-radius-sm: 8px;
    --pill-radius: 50px;
    --spacing-section: 40px;
}

[data-theme="dark"] {
    --bg-primary: #000000;
    --bg-secondary: #161616;
    --bg-tertiary: #222222;

    --text-primary: #FFFFFF;
    --text-secondary: #999999;
    --text-inverse: #000000;

    --accent-color: #FFFFFF;
    --accent-hover: #E0E0E0;

    --border-color: #333333;
}

* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html,
body {
    overflow-x: hidden;
    width: 100%;
    max-width: 100vw;
}

body {
    font-family: var(--font-family);
    background-color: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.5;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    transition: background-color 0.4s ease, color 0.4s ease;
    position: relative;
}

/* Animations */
.fade-up {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.8s cubic-bezier(0.16, 1, 0.3, 1), transform 0.8s cubic-bezier(0.16, 1, 0.3, 1);
}

.fade-up.visible {
    opacity: 1;
    transform: translateY(0);
}

@keyframes float {
    0% {
        transform: translateY(0px);
    }

    50% {
        transform: translateY(-15px);
    }

    100% {
        transform: translateY(0px);
    }
}

a {
    text-decoration: none;
    color: var(--text-primary);
    transition: var(--transition);
}

/* Typography heavily inspired by Samsung */
h1,
h2,
h3,
h4,
h5,
h6 {
    font-weight: 700;
    letter-spacing: -0.03em;
    margin-bottom: 24px;
    line-height: 1.1;
}

/* Elegant Samsung Corporate typography */
h1 {
    font-size: 3.2rem;
}

h2 {
    font-size: 2.2rem;
}

h3 {
    font-size: 1.6rem;
}

h4 {
    font-size: 1.25rem;
}

p {
    font-size: 1.1rem;
    color: var(--text-secondary);
    margin-bottom: 24px;
    font-weight: 400;
    line-height: 1.6;
}

.lead {
    font-size: 1.35rem;
    font-weight: 500;
    color: var(--text-secondary);
    line-height: 1.5;
}

.text-center {
    text-align: center;
}

.highlight {
    color: var(--accent-blue);
}

.brand-gradient-text {
    background: linear-gradient(135deg, #7C3AED 0%, #4F46E5 100%);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    display: inline-block;
}

/* Layout Containers */
.container {
    max-width: 1440px;
    margin: 0 auto;
    padding: 0 4%;
}

section {
    padding: var(--spacing-section) 0;
}

.bg-secondary {
    background-color: var(--bg-secondary);
}

/* Navbar */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(255, 255, 255, 0.9);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border-color);
    transition: background 0.4s ease, border-color 0.4s ease;
}

[data-theme="light"] .navbar {
    background: rgba(255, 255, 255, 0.9);
}

[data-theme="dark"] .navbar {
    background: rgba(0, 0, 0, 0.8);
}

.nav-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 80px;
}

.logo {
    font-size: 1.4rem;
    font-weight: 800;
    letter-spacing: -0.05em;
}

.nav-links {
    display: flex;
    gap: 32px;
}

.nav-links a {
    font-size: 0.9rem;
    font-weight: 600;
    position: relative;
}

.nav-links a::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0%;
    height: 2px;
    background: var(--text-primary);
    transition: width 0.3s ease;
}

.nav-links a:hover::after,
.nav-links a.active::after {
    width: 100%;
}

/* ── Services Dropdown ──────────────────────────────────── */
.nav-dropdown {
    position: relative;
}

.nav-dropdown-trigger {
    display: flex;
    align-items: center;
    gap: 4px;
    cursor: pointer;
}

/* hide the underline pseudo for the trigger since the dropdown handles it */
.nav-dropdown-trigger::after {
    display: none !important;
}

.dropdown-menu {
    display: none;
    position: absolute;
    top: 100%;
    /* flush — no gap */
    padding-top: 10px;
    /* transparent hover bridge */
    left: 50%;
    transform: translateX(-50%);
    min-width: 240px;
    z-index: 2000;
    animation: dropIn 0.2s ease;
}

@keyframes dropIn {
    from {
        opacity: 0;
        transform: translateX(-50%) translateY(-8px);
    }

    to {
        opacity: 1;
        transform: translateX(-50%) translateY(0);
    }
}

.nav-dropdown:hover .dropdown-menu {
    display: block;
}

/* Inner panel — actual visual box */
.dropdown-inner {
    background: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    padding: 10px;
    box-shadow: 0 24px 60px rgba(0, 0, 0, 0.12);
    backdrop-filter: blur(20px);
}

.dropdown-menu a {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 10px 14px;
    border-radius: 10px;
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--text-primary);
    text-decoration: none;
    transition: background 0.15s ease;
    white-space: nowrap;
}

.dropdown-menu a::after {
    display: none !important;
}

.dropdown-menu a:hover {
    background: var(--bg-tertiary);
    color: var(--accent-blue);
}

.drop-icon {
    width: 28px;
    text-align: center;
    font-size: 1rem;
    flex-shrink: 0;
}

.drop-divider {
    height: 1px;
    background: var(--border-color);
    margin: 8px 0;
}

.nav-actions {
    display: flex;
    align-items: center;
    gap: 20px;
}

/* Buttons */
.btn-primary {
    background: var(--accent-color);
    color: var(--text-inverse) !important;
    padding: 14px 32px;
    border-radius: var(--pill-radius);
    font-weight: 600;
    font-size: 1rem;
    display: inline-block;
    border: 1px solid var(--accent-color);
}

.btn-primary:hover {
    background: var(--accent-hover);
    border-color: var(--accent-hover);
    transform: translateY(-2px);
}

.btn-secondary {
    background: transparent;
    color: var(--text-primary) !important;
    padding: 14px 32px;
    border-radius: var(--pill-radius);
    font-weight: 600;
    font-size: 1rem;
    display: inline-block;
    border: 1px solid var(--text-primary);
}

.btn-secondary:hover {
    background: var(--bg-tertiary);
}

.theme-toggle {
    background: none;
    border: none;
    color: var(--text-primary);
    font-size: 1.2rem;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
}

.menu-toggle {
    display: none;
    background: none;
    border: none;
    color: var(--text-primary);
    font-size: 1.5rem;
    cursor: pointer;
}

/* Mobile Nav */
.mobile-nav {
    display: none;
    background: var(--bg-primary);
    padding: 24px;
    flex-direction: column;
    gap: 20px;
    border-bottom: 1px solid var(--border-color);
    position: absolute;
    top: 80px;
    left: 0;
    right: 0;
    max-height: calc(100vh - 80px);
    overflow-y: auto;
}

.mobile-nav.open {
    display: flex;
}

.mobile-nav a {
    font-size: 1.2rem;
    font-weight: 600;
    padding: 10px 0;
    border-bottom: 1px solid var(--border-color);
}

/* Hero Section */
.hero {
    min-height: 90vh;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    padding-top: 80px;
    background-color: var(--bg-secondary);
    border-radius: 0 0 var(--border-radius-lg) var(--border-radius-lg);
    margin-bottom: 20px;
}

.hero.sub {
    min-height: 60vh;
}

.eyebrow {
    text-transform: uppercase;
    letter-spacing: 0.1em;
    font-size: 0.85rem;
    font-weight: 700;
    color: var(--text-secondary);
    margin-bottom: 24px;
    display: block;
}

.hero h1 {
    max-width: 1000px;
    margin: 0 auto 24px;
}

.hero p.lead {
    max-width: 800px;
    margin: 0 auto 40px;
}

.hero-actions {
    display: flex;
    gap: 16px;
    justify-content: center;
}

/* Stats */
.stats-container {
    max-width: 1200px;
    margin: -80px auto 60px;
    /* Overlap hero */
    position: relative;
    z-index: 10;
    background: var(--bg-primary);
    padding: 40px;
    border-radius: var(--border-radius-lg);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.05);
}

[data-theme="dark"] .stats-container {
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.4);
    background: var(--bg-tertiary);
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 30px;
    text-align: center;
}

.stat-item h4 {
    font-size: 3rem;
    margin-bottom: 8px;
    color: var(--text-primary);
}

.stat-item p {
    font-size: 0.95rem;
    margin: 0;
    font-weight: 600;
    color: var(--text-secondary);
}

/* Grids & Cards */
.grid-2 {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 40px;
    align-items: center;
}

.grid-3 {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}

.card {
    background: var(--bg-secondary);
    border-radius: var(--border-radius-lg);
    padding: 32px;
    transition: var(--transition);
    height: 100%;
}

.card:hover {
    transform: translateY(-8px);
}

/* Icon Box for cards */
.icon-box {
    font-size: 2.5rem;
    color: var(--text-primary);
    margin-bottom: 30px;
}

.problem-box {
    background: var(--bg-secondary);
    padding: 40px;
    border-radius: var(--border-radius-md);
    font-style: italic;
    font-size: 1.4rem;
    line-height: 1.6;
    margin-bottom: 30px;
    font-weight: 500;
}

/* Lists replacing icons with simple typography/dots */
ul.clean-list {
    list-style: none;
    padding: 0;
}

ul.clean-list li {
    font-size: 1.1rem;
    margin-bottom: 24px;
}

ul.clean-list li strong {
    display: block;
    font-size: 1.3rem;
    margin-bottom: 8px;
    color: var(--text-primary);
}

/* Footer */
.site-footer {
    background: var(--bg-tertiary);
    padding: 80px 0 30px;
    margin-top: 0;
    border-top: 1px solid var(--border-color);
}

.footer-content {
    display: grid;
    grid-template-columns: 2.5fr 1fr 1fr 1.5fr;
    gap: 40px;
    margin-bottom: 60px;
}

.footer-brand p {
    color: var(--text-secondary);
    font-size: 0.95rem;
    line-height: 1.6;
    margin-top: 16px;
    max-width: 85%;
}

.footer-links h3,
.footer-contact h3 {
    font-size: 0.78rem;
    text-transform: uppercase;
    letter-spacing: 2px;
    margin-bottom: 20px;
    color: var(--text-primary);
    font-weight: 700;
}

.footer-links a {
    display: block;
    color: var(--text-secondary);
    margin-bottom: 12px;
    font-size: 0.95rem;
    font-weight: 500;
    transition: color 0.3s ease;
}

.footer-contact p {
    display: flex;
    align-items: center;
    gap: 12px;
    color: var(--text-secondary);
    margin-bottom: 12px;
    font-size: 0.95rem;
    font-weight: 500;
}

.footer-contact p i {
    color: var(--accent-blue);
    font-size: 1.05rem;
    min-width: 20px;
}

.footer-links a:hover {
    color: var(--accent-blue);
}

.socials {
    display: flex;
    gap: 12px;
    margin-top: 24px;
}

.socials a {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: var(--bg-primary);
    border: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.95rem;
    color: var(--text-primary);
    transition: all 0.3s ease;
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.02);
}

.socials a:hover {
    background: var(--text-primary);
    border-color: var(--text-primary);
    color: var(--bg-primary);
    transform: translateY(-2px);
    box-shadow: 0 8px 15px rgba(0, 0, 0, 0.05);
}

.footer-bottom {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 16px;
    color: var(--text-secondary);
    padding-top: 24px;
    border-top: 1px solid var(--border-color);
    font-size: 0.85rem;
    font-weight: 500;
}

@media (max-width: 600px) {
    .footer-bottom {
        flex-direction: column;
        justify-content: center;
        text-align: center;
    }
}

/* Forms */
.form-group {
    margin-bottom: 30px;
}

.form-label {
    display: block;
    font-weight: 600;
    margin-bottom: 12px;
    font-size: 1rem;
}

.form-control {
    width: 100%;
    padding: 18px 24px;
    background: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-md);
    color: var(--text-primary);
    font-family: inherit;
    font-size: 1.1rem;
    transition: var(--transition);
}

.form-control:focus {
    outline: none;
    border-color: var(--text-primary);
}

textarea.form-control {
    height: 180px;
    resize: vertical;
}

/* Responsive adjustments */
@media(max-width: 1024px) {
    h1 {
        font-size: 2.5rem;
    }

    h2 {
        font-size: 2rem;
    }

    .grid-3 {
        grid-template-columns: repeat(2, 1fr);
        gap: 30px;
    }

    .stats-grid {
        gap: 15px;
    }

    .footer-content {
        grid-template-columns: 1fr 1fr;
        gap: 40px;
    }

    .hero {
        padding-top: 100px;
        min-height: 70vh;
    }

    .stats-container {
        margin-top: -40px;
        padding: 30px;
    }
}

@media(max-width: 768px) {
    h1 {
        font-size: 2.1rem;
    }

    h2 {
        font-size: 1.8rem;
    }

    h4 {
        font-size: 1.25rem;
    }

    /* Stats adjusted */
    .hero-actions {
        flex-direction: column;
        width: 100%;
        max-width: 300px;
        margin: 0 auto;
    }

    .nav-links,
    .nav-actions .btn-primary {
        display: none;
    }

    .menu-toggle {
        display: block;
    }

    .grid-2,
    .grid-3 {
        grid-template-columns: 1fr;
        gap: 30px;
    }

    .stats-grid {
        grid-template-columns: 1fr 1fr;
        gap: 30px;
    }

    .footer-content {
        grid-template-columns: 1fr;
    }

    .card {
        padding: 30px;
    }

    .stats-container {
        margin-top: 20px;
        box-shadow: none;
        border: 1px solid var(--border-color);
        padding: 20px;
    }
}

/* Custom Accordion Open/Close List Styles */
.ac-item {
    border-bottom: 1px solid var(--border-color);
    padding: 24px 0;
}

.ac-item:first-child {
    border-top: 1px solid var(--border-color);
}

.ac-trigger {
    width: 100%;
    display: flex;
    justify-content: space-between;
    align-items: center;
    background: none;
    border: none;
    cursor: pointer;
    font-size: 1.4rem;
    font-weight: 600;
    color: var(--text-primary);
    text-align: left;
    outline: none;
    padding: 10px 0;
    font-family: inherit;
    transition: color 0.3s ease;
}

.ac-trigger:hover {
    color: var(--accent-blue);
}

.ac-icon {
    font-size: 1.2rem;
    color: var(--text-secondary);
    transition: transform 0.3s ease;
}

.ac-item.active .ac-icon {
    color: var(--text-primary);
}

.ac-panel {
    display: grid;
    grid-template-rows: 0fr;
    transition: grid-template-rows 0.4s cubic-bezier(0.16, 1, 0.3, 1);
}

.ac-item.active .ac-panel {
    grid-template-rows: 1fr;
}

.ac-content {
    overflow: hidden;
    padding-left: 60px;
}

.ac-text {
    padding-top: 16px;
    padding-bottom: 10px;
    font-size: 1.1rem;
    color: var(--text-secondary);
    line-height: 1.6;
}

/* Rocket Ascend Animation */
@keyframes jetAscend {
    0% {
        transform: translateY(40px) translateX(0px) scale(0.95);
        opacity: 0;
    }

    10% {
        transform: translateY(30px) translateX(-2px) scale(0.96);
        opacity: 1;
    }

    20% {
        transform: translateY(20px) translateX(2px) scale(0.97);
    }

    30% {
        transform: translateY(10px) translateX(-2px) scale(0.98);
    }

    40% {
        transform: translateY(0px) translateX(2px) scale(0.99);
    }

    50% {
        transform: translateY(-10px) translateX(-2px) scale(1);
    }

    60% {
        transform: translateY(-20px) translateX(2px) scale(1.02);
    }

    70% {
        transform: translateY(-30px) translateX(-1px) scale(1.04);
    }

    80% {
        transform: translateY(-40px) translateX(1px) scale(1.06);
    }

    90% {
        transform: translateY(-50px) translateX(-1px) scale(1.08);
        opacity: 1;
    }

    100% {
        transform: translateY(-60px) translateX(0px) scale(1.1);
        opacity: 0;
    }
}