:root {
    --primary: #0f172a;
    --secondary: #3b82f6;
    --accent-excel: #10b981;
    --accent-bi: #f59e0b;
    --text-primary: #f8fafc;
    --text-secondary: #94a3b8;
    --bg-primary: #020617;
    --bg-secondary: #0f172a;
    --glass: rgba(255, 255, 255, 0.05);
    --glass-border: rgba(255, 255, 255, 0.1);
    --transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    --card-bg: rgba(255, 255, 255, 0.03);
}

body.light-mode {
    --text-primary: #0f172a;
    --text-secondary: #475569;
    --bg-primary: #f8fafc;
    --bg-secondary: #ffffff;
    --glass: rgba(15, 23, 42, 0.05);
    --glass-border: rgba(15, 23, 42, 0.1);
    --card-bg: #ffffff;
}

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

body {
    font-family: 'Outfit', sans-serif;
    background-color: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
    overflow-x: hidden;
    transition: background-color 0.3s ease, color 0.3s ease;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
}

/* Header & Nav */
header {
    position: fixed;
    top: 0; left: 0; width: 100%;
    z-index: 1000;
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--glass);
    padding: 1rem 0;
}

nav {
    display: flex; justify-content: space-between; align-items: center;
}

.logo {
    font-size: 1.5rem; font-weight: 700; letter-spacing: 2px;
}

.logo span { color: var(--secondary); font-weight: 300; }

.nav-links { display: flex; list-style: none; gap: 2rem; align-items: center; }

.nav-links a {
    text-decoration: none; color: var(--text-secondary); font-weight: 500; font-size: 0.9rem;
    transition: var(--transition);
}

.nav-links a:hover { color: var(--text-primary); }

.btn-primary {
    background: linear-gradient(135deg, var(--secondary), #1d4ed8);
    color: white !important;
    padding: 0.8rem 1.5rem;
    border-radius: 50px;
    font-weight: 600;
    transition: var(--transition);
    border: none; cursor: pointer;
}

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 10px 20px rgba(59, 130, 246, 0.3);
}

.btn-secondary {
    border: 1px solid var(--glass-border);
    padding: 0.8rem 1.5rem;
    border-radius: 50px;
    color: var(--text-primary);
    text-decoration: none;
    transition: var(--transition);
}

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

.theme-toggle {
    background: var(--glass);
    border: 1px solid var(--glass-border);
    color: var(--text-primary);
    width: 40px; height: 40px;
    border-radius: 50%;
    display: flex; align-items: center; justify-content: center;
    cursor: pointer;
    transition: var(--transition);
}

.theme-toggle:hover {
    background: var(--secondary);
    color: white;
    transform: rotate(15deg);
}

/* Hero Section */
.hero {
    padding: 10rem 0 6rem;
    position: relative;
    min-height: 90vh;
    display: flex; align-items: center;
}

.hero-bg {
    position: absolute; top: -10%; right: -10%;
    width: 60%; height: 60%;
    background: radial-gradient(circle, rgba(59,130,246,0.15), transparent 70%);
    filter: blur(60px); z-index: -1;
}

.hero-grid {
    display: grid; grid-template-columns: 1.2fr 0.8fr; gap: 4rem; align-items: center;
}

.badge {
    display: inline-block; padding: 0.4rem 1rem;
    background: var(--glass); border: 1px solid var(--secondary);
    border-radius: 50px; font-size: 0.8rem; color: var(--secondary);
    margin-bottom: 1.5rem;
}

h1 {
    font-size: 4rem; line-height: 1.1; margin-bottom: 1.5rem; font-weight: 700;
}

.highlight {
    background: linear-gradient(135deg, var(--secondary), var(--accent-excel));
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}

.hero p {
    font-size: 1.1rem; color: var(--text-gray); margin-bottom: 2.5rem; max-width: 500px;
}

.hero-btns { display: flex; gap: 1rem; }

.image-stack { position: relative; }

.main-img {
    width: 100%; border-radius: 30px; border: 1px solid var(--glass);
    box-shadow: 0 30px 60px rgba(0,0,0,0.5);
}

.floating-card {
    position: absolute;
    background: rgba(255,255,255,0.05);
    backdrop-filter: blur(15px);
    padding: 1rem 1.5rem;
    border-radius: 15px;
    border: 1px solid var(--glass);
    display: flex; align-items: center; gap: 0.8rem;
    font-weight: 600; font-size: 0.9rem;
    animation: float 4s ease-in-out infinite;
}

.excel-card { bottom: 20px; left: -40px; border-left: 4px solid var(--accent-excel); }
.bi-card { top: 40px; right: -20px; border-left: 4px solid var(--accent-bi); animation-delay: 2s;}

@keyframes float {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-10px); }
}

/* Stats */
.stats { padding: 4rem 0; background: var(--glass); }
.stats-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 2rem; text-align: center; }
.stat-number { font-size: 2.5rem; font-weight: 700; color: var(--secondary); }
.stat-label { font-size: 0.9rem; color: var(--text-gray); }

/* About */
.about { padding: 8rem 0; }
.about-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 5rem; align-items: center; }
.about-image img { width: 100%; border-radius: 30px; }
.section-title { font-size: 2.5rem; margin-bottom: 1.5rem; }
.section-title span { color: var(--secondary); }
.check-list { list-style: none; margin-top: 2rem; }
.check-list li { display: flex; align-items: center; gap: 1rem; margin-bottom: 1rem; font-weight: 500; }
.check-list i { color: var(--accent-excel); }

/* Expertise */
.expertise { padding: 6rem 0; background: var(--bg-primary); border-top: 1px solid var(--glass-border); }
.section-header { text-align: center; margin-bottom: 4rem; }
.expertise-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 3rem; }
.expertise-card {
    padding: 3rem; border-radius: 30px; background: var(--card-bg);
    border: 1px solid var(--glass-border); transition: var(--transition);
    box-shadow: 0 10px 30px rgba(0,0,0,0.05);
}
.expertise-card:hover { transform: translateY(-10px); border-color: var(--secondary); }
.card-icon {
    width: 60px; height: 60px; border-radius: 15px;
    display: flex; align-items: center; justify-content: center; margin-bottom: 2rem;
}
.excel .card-icon { background: rgba(16, 185, 129, 0.1); color: var(--accent-excel); }
.bi .card-icon { background: rgba(245, 158, 11, 0.1); color: var(--accent-bi); }
.expertise-card h3 { margin-bottom: 1.5rem; font-size: 1.5rem; }
.expertise-card ul { list-style: none; }
.expertise-card li { margin-bottom: 0.8rem; color: var(--text-secondary); display: flex; align-items: center; gap: 0.5rem; }
.expertise-card li::before { content: '→'; color: var(--secondary); }

/* SME Section */
.sme { padding: 8rem 0; }
.sme-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 5rem; align-items: center; }
.subtitle { color: var(--secondary); font-weight: 600; margin-bottom: 2rem; display: block;}
.sme-item { display: flex; gap: 1.5rem; margin-bottom: 2.5rem; }
.sme-icon {
    min-width: 50px; height: 50px; border-radius: 50%;
    background: var(--glass); display: flex; align-items: center; justify-content: center;
    color: var(--secondary);
}
.sme-mockup { position: relative; }
.mockup-frame {
    background: var(--bg-secondary); padding: 1rem; border-radius: 20px;
    border: 8px solid var(--glass-border);
}
.mockup-frame img { width: 100%; border-radius: 10px; }

/* Global helper for text transition */
.hero p, .testimonial-card p, .stat-label, .detail { color: var(--text-secondary); }

/* Clients */
.clients { padding: 6rem 0; border-top: 1px solid var(--glass-border); border-bottom: 1px solid var(--glass-border); }
.client-title { text-align: center; margin-bottom: 3rem; color: var(--text-secondary); font-size: 1rem; letter-spacing: 2px; text-transform: uppercase; }
.client-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 3rem; text-align: center; }
.client-grid span { font-size: 1.2rem; font-weight: 700; opacity: 0.7; transition: 0.3s; color: var(--text-primary); }
.client-grid span:hover { opacity: 1; color: var(--secondary); }

/* Testimonials */
.testimonials { padding: 8rem 0; text-align: center; }
.testimonial-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 3rem; margin-top: 4rem; }
.testimonial-card {
    padding: 3rem; background: var(--glass); border-radius: 30px; text-align: left;
    border: 1px solid var(--glass);
}
.quote-icon { color: var(--secondary); margin-bottom: 1.5rem; }
.testimonial-card p { font-style: italic; margin-bottom: 2rem; color: var(--text-gray); }
.author h4 { margin-bottom: 0.2rem; }
.author span { font-size: 0.8rem; color: var(--secondary); }

/* Contact */
.contact { padding: 8rem 0; background: linear-gradient(to bottom, transparent, var(--glass)); }
.contact-grid { display: grid; grid-template-columns: 1fr 1.2fr; gap: 5rem; }
.contact-details { margin-top: 3rem; }
.detail { display: flex; align-items: center; gap: 1rem; margin-bottom: 1.5rem; color: var(--text-gray); }
.contact-form-wrapper { background: var(--glass); padding: 3rem; border-radius: 30px; border: 1px solid var(--glass); }
#contact-form { display: flex; flex-direction: column; gap: 1.5rem; }
.input-group { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; }
input, select, textarea {
    padding: 1rem; background: rgba(255,255,255,0.03); border: 1px solid var(--glass);
    border-radius: 10px; color: white; outline: none; transition: var(--transition);
}
input:focus, textarea:focus { border-color: var(--secondary); }

/* Footer */
footer { padding: 4rem 0; border-top: 1px solid var(--glass); }
.footer-bottom { display: flex; justify-content: space-between; align-items: center; color: var(--text-gray); font-size: 0.9rem; }
.socials { display: flex; gap: 1.5rem; }
.socials a { color: var(--text-gray); transition: 0.3s; }
.socials a:hover { color: var(--secondary); }

/* Responsive */
@media (max-width: 968px) {
    h1 { font-size: 3rem; }
    .hero-grid, .about-grid, .expertise-grid, .sme-grid, .contact-grid, .testimonial-grid { grid-template-columns: 1fr; }
    .nav-links { display: none; }
    .hero-image { order: -1; }
    .client-grid { grid-template-columns: repeat(2, 1fr); }
    .stats-grid { grid-template-columns: repeat(2, 1fr); }
}