:root {
    --bg-main: #f8fafc;
    --bg-panel: rgba(255, 255, 255, 0.8);
    --text-primary: #0f172a;
    --text-secondary: #475569;
    --accent-primary: #0284c7;
    --accent-hover: #0369a1;
    --accent-glow: rgba(2, 132, 199, 0.2);
    --border-color: rgba(0, 0, 0, 0.1);
    --header-bg: rgba(248, 250, 252, 0.9);
    --footer-bg: #e2e8f0;
    --input-bg: #ffffff;
    --gradient-text-start: #0f172a;
    --panel-shadow: 0 10px 30px -10px rgba(0,0,0,0.1);
    
    --font-main: 'Outfit', sans-serif;
    --transition: all 0.3s ease;
}

[data-theme="dark"] {
    --bg-main: #0b1120;
    --bg-panel: rgba(30, 41, 59, 0.7);
    --text-primary: #f8fafc;
    --text-secondary: #94a3b8;
    --accent-primary: #0ea5e9;
    --accent-hover: #0284c7;
    --accent-glow: rgba(14, 165, 233, 0.5);
    --border-color: rgba(255, 255, 255, 0.1);
    --header-bg: rgba(11, 17, 32, 0.9);
    --footer-bg: #060a13;
    --input-bg: rgba(0, 0, 0, 0.2);
    --gradient-text-start: #ffffff;
    --panel-shadow: 0 10px 30px -10px rgba(0,0,0,0.5);
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-main);
    background-color: var(--bg-main);
    color: var(--text-primary);
    line-height: 1.6;
    overflow-x: hidden;
}

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

.section {
    padding: 6rem 0;
}

.section-header {
    text-align: center;
    margin-bottom: 4rem;
}

.section-header h2 {
    font-size: 2.5rem;
    margin-bottom: 1rem;
    background: linear-gradient(to right, var(--gradient-text-start), var(--accent-primary));
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}

.section-header p {
    color: var(--text-secondary);
    font-size: 1.1rem;
    max-width: 600px;
    margin: 0 auto;
}

.glass-panel {
    background: var(--bg-panel);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    box-shadow: var(--panel-shadow);
}

/* Typography */
h1, h2, h3, h4 {
    font-weight: 600;
    line-height: 1.2;
}

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

/* Buttons */
.btn {
    display: inline-block;
    padding: 0.8rem 1.5rem;
    border-radius: 8px;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    text-align: center;
}

.btn-primary {
    background-color: var(--accent-primary);
    color: white;
    border: 1px solid var(--accent-primary);
    box-shadow: 0 4px 14px var(--accent-glow);
}

.btn-primary:hover {
    background-color: var(--accent-hover);
    transform: translateY(-2px);
    box-shadow: 0 6px 20px var(--accent-glow);
}

.btn-outline {
    background-color: transparent;
    color: var(--text-primary);
    border: 1px solid var(--border-color);
}

.btn-outline:hover {
    border-color: var(--accent-primary);
    color: var(--accent-primary);
}

.btn-large {
    padding: 1rem 2rem;
    font-size: 1.1rem;
}

.btn-block {
    display: block;
    width: 100%;
}

/* Header & Nav */
header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    padding: 1.5rem 0;
    transition: var(--transition);
}

header.scrolled {
    background: var(--header-bg);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    padding: 1rem 0;
    border-bottom: 1px solid var(--border-color);
    box-shadow: var(--panel-shadow);
}

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

.logo {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

/* Typographic Logo */
.logo-text {
    font-size: 1.8rem;
    font-weight: 800;
    letter-spacing: -0.5px;
}

.logo-text .bracket {
    color: var(--accent-primary);
    opacity: 0.7;
    font-weight: 300;
}

.logo-text .accent {
    color: var(--accent-primary);
    font-weight: 400;
}

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

.theme-btn {
    background: transparent;
    border: none;
    color: var(--text-primary);
    font-size: 1.2rem;
    cursor: pointer;
    transition: var(--transition);
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    border-radius: 50%;
}

.theme-btn:hover {
    background: var(--border-color);
    color: var(--accent-primary);
}

.nav-links a {
    font-weight: 400;
    font-size: 1rem;
}

.nav-links a:not(.btn):hover {
    color: var(--accent-primary);
}

.menu-toggle {
    display: none;
    font-size: 1.5rem;
    cursor: pointer;
}

/* Hero Section */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    position: relative;
    padding-top: 80px;
}

.hero-bg-shapes {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    overflow: hidden;
    z-index: -1;
}

.shape {
    position: absolute;
    border-radius: 50%;
    filter: blur(80px);
    opacity: 0.4;
}

.shape-1 {
    top: -10%;
    right: -5%;
    width: 500px;
    height: 500px;
    background: var(--accent-primary);
}

.shape-2 {
    bottom: -10%;
    left: -10%;
    width: 400px;
    height: 400px;
    background: #818cf8;
}

.hero-container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 4rem;
    text-align: left;
}

.hero-content {
    flex: 1;
    max-width: 600px;
}

.hero-content h1 {
    font-size: 4rem;
    margin-bottom: 1.5rem;
}

.hero-content h1 span {
    color: var(--accent-primary);
}

.hero-content p {
    font-size: 1.2rem;
    color: var(--text-secondary);
    margin-bottom: 2.5rem;
}

.hero-actions {
    display: flex;
    gap: 1.5rem;
    justify-content: flex-start;
}

.hero-image-wrapper {
    flex: 1;
    display: flex;
    justify-content: center;
    perspective: 1000px;
}

.hero-image {
    max-width: 100%;
    height: auto;
    border-radius: 20px;
    box-shadow: var(--panel-shadow);
    border: 1px solid var(--border-color);
    transform: rotateY(-5deg) rotateX(5deg);
    transition: var(--transition);
}

.hero-image:hover {
    transform: rotateY(0) rotateX(0);
}

/* Services Section */
.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
}

.service-card {
    padding: 2.5rem;
    transition: var(--transition);
}

.service-card:hover {
    transform: translateY(-10px);
    border-color: rgba(14, 165, 233, 0.3);
    box-shadow: 0 15px 35px -5px rgba(14, 165, 233, 0.15);
}

.service-icon {
    font-size: 2.5rem;
    color: var(--accent-primary);
    margin-bottom: 1.5rem;
}

.service-card h3 {
    font-size: 1.3rem;
    margin-bottom: 1rem;
}

.service-card p {
    color: var(--text-secondary);
    font-size: 0.95rem;
}

/* About Section */
.about-container {
    display: flex;
    gap: 4rem;
    padding: 4rem;
    align-items: center;
}

.about-image {
    flex: 1;
    position: relative;
}

.img-wrapper {
    border-radius: 20px;
    overflow: hidden;
    border: 1px solid var(--border-color);
}

.img-wrapper img {
    width: 100%;
    height: auto;
    display: block;
    filter: grayscale(20%) contrast(110%);
    transition: var(--transition);
}

.img-wrapper:hover img {
    filter: grayscale(0%) contrast(100%);
    transform: scale(1.02);
}

.experience-badge {
    position: absolute;
    bottom: -20px;
    right: -20px;
    background: var(--accent-primary);
    color: white;
    padding: 1.5rem;
    border-radius: 16px;
    display: flex;
    align-items: center;
    gap: 1rem;
    box-shadow: 0 10px 25px rgba(0,0,0,0.5);
    border: 1px solid rgba(255,255,255,0.2);
}

.experience-badge .number {
    font-size: 2.5rem;
    font-weight: 800;
}

.experience-badge .text {
    font-size: 0.9rem;
    line-height: 1.2;
    font-weight: 600;
}

.about-content {
    flex: 1;
}

.about-content h2 {
    font-size: 2.5rem;
    margin-bottom: 0.5rem;
}

.about-content h2 span {
    color: var(--accent-primary);
}

.about-content .subtitle {
    color: var(--accent-primary);
    font-size: 1.1rem;
    font-weight: 400;
    margin-bottom: 1.5rem;
}

.about-content p {
    color: var(--text-secondary);
    margin-bottom: 1.5rem;
}

.about-features {
    list-style: none;
    margin-top: 2rem;
}

.about-features li {
    margin-bottom: 1rem;
    display: flex;
    align-items: center;
    gap: 1rem;
    font-weight: 600;
}

.about-features i {
    color: var(--accent-primary);
}

/* Contact Section */
.contact-container {
    display: flex;
    gap: 3rem;
}

.contact-info {
    flex: 1;
    padding: 3rem;
}

.contact-info h3 {
    font-size: 1.8rem;
    margin-bottom: 1rem;
}

.contact-info > p {
    color: var(--text-secondary);
    margin-bottom: 2rem;
}

.info-list {
    list-style: none;
}

.info-list li {
    display: flex;
    gap: 1.5rem;
    margin-bottom: 1.5rem;
    align-items: flex-start;
}

.info-icon {
    background: rgba(14, 165, 233, 0.1);
    color: var(--accent-primary);
    width: 50px;
    height: 50px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.2rem;
    flex-shrink: 0;
}

.info-list strong {
    display: block;
    margin-bottom: 0.2rem;
}

.info-list a, .info-list span {
    color: var(--text-secondary);
}

.info-list a:hover {
    color: var(--accent-primary);
}

.contact-form {
    flex: 1.5;
    padding: 3rem;
}

.form-group {
    margin-bottom: 1.5rem;
}

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 600;
    color: var(--text-primary);
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 1rem;
    background: var(--input-bg);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    color: var(--text-primary);
    font-family: var(--font-main);
    transition: var(--transition);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--accent-primary);
    box-shadow: 0 0 0 2px rgba(14, 165, 233, 0.2);
}

/* Footer */
footer {
    background: var(--footer-bg);
    padding: 4rem 0 2rem;
    border-top: 1px solid var(--border-color);
}

.footer-container {
    display: flex;
    justify-content: space-between;
    gap: 4rem;
    margin-bottom: 3rem;
}

.footer-brand {
    flex: 2;
}

.footer-brand .logo {
    margin-bottom: 1rem;
}

.footer-brand p {
    color: var(--text-secondary);
    max-width: 300px;
}

.footer-links, .footer-contact {
    flex: 1;
}

.footer-links h3, .footer-contact h3 {
    margin-bottom: 1.5rem;
    font-size: 1.2rem;
}

.footer-links ul {
    list-style: none;
}

.footer-links li {
    margin-bottom: 0.8rem;
}

.footer-links a, .footer-contact p, .footer-contact a {
    color: var(--text-secondary);
}

.footer-links a:hover, .footer-contact a:hover {
    color: var(--accent-primary);
}

.footer-bottom {
    text-align: center;
    padding-top: 2rem;
    border-top: 1px solid rgba(255,255,255,0.05);
    color: var(--text-secondary);
    font-size: 0.9rem;
}

/* Responsive */
@media (max-width: 992px) {
    .about-container {
        flex-direction: column;
        padding: 2rem;
    }
    
    .contact-container {
        flex-direction: column;
    }
    
    .hero-content h1 {
        font-size: 3rem;
    }
    
    .hero-container {
        flex-direction: column;
        text-align: center;
    }
    
    .hero-actions {
        justify-content: center;
    }
    
    .footer-container {
        flex-wrap: wrap;
    }
}

@media (max-width: 768px) {
    .nav-links {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        width: 100%;
        background: var(--bg-main);
        flex-direction: column;
        padding: 2rem;
        border-bottom: 1px solid var(--border-color);
    }
    
    .nav-links.active {
        display: flex;
    }
    
    .menu-toggle {
        display: block;
    }
    
    .hero-actions {
        flex-direction: column;
    }
    
    .contact-info, .contact-form {
        padding: 2rem;
    }
    
    .experience-badge {
        padding: 1rem;
        gap: 0.5rem;
        bottom: -10px;
        right: -10px;
    }
    
    .experience-badge .number {
        font-size: 1.8rem;
    }
    
    .experience-badge .text {
        font-size: 0.8rem;
    }
}