/* ===== Variables ===== */
:root {
    --primary: #6366f1;
    --primary-dark: #4f46e5;
    --secondary: #0ea5e9;
    --dark: #0f172a;
    --dark-light: #1e293b;
    --gray: #64748b;
    --gray-light: #94a3b8;
    --light: #f8fafc;
    --white: #ffffff;
    --gradient: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
    --shadow: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
    --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);
    --radius: 12px;
    --transition: all 0.3s ease;
}

/* ===== Reset & Base ===== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    background: var(--dark);
    color: var(--light);
    line-height: 1.6;
}

/* ===== Navbar ===== */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(15, 23, 42, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 1rem 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--white);
    text-decoration: none;
}

.logo span {
    color: var(--primary);
}

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

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

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

.btn-nav {
    background: var(--gradient);
    padding: 0.5rem 1.25rem !important;
    border-radius: 50px;
    color: var(--white) !important;
}

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

/* ===== Buttons ===== */
.btn {
    display: inline-block;
    padding: 0.875rem 2rem;
    border-radius: 50px;
    text-decoration: none;
    font-weight: 600;
    font-size: 0.95rem;
    transition: var(--transition);
    cursor: pointer;
    border: none;
}

.btn-primary {
    background: var(--gradient);
    color: var(--white);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 20px rgba(99, 102, 241, 0.3);
}

.btn-outline {
    background: transparent;
    border: 2px solid var(--gray);
    color: var(--white);
}

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

.btn-full {
    width: 100%;
}

/* ===== Section Styles ===== */
section {
    padding: 6rem 2rem;
}

.section-container {
    max-width: 1200px;
    margin: 0 auto;
}

.section-tag {
    display: inline-block;
    background: rgba(99, 102, 241, 0.15);
    color: var(--primary);
    padding: 0.5rem 1rem;
    border-radius: 50px;
    font-size: 0.85rem;
    font-weight: 600;
    margin-bottom: 1rem;
}

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

.section-header h2 {
    font-size: 2.5rem;
    margin-bottom: 1rem;
}

.section-header p {
    color: var(--gray-light);
    font-size: 1.1rem;
}

.highlight {
    background: var(--gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* ===== Image Placeholders ===== */
.image-placeholder {
    background: linear-gradient(135deg, var(--dark-light) 0%, var(--dark) 100%);
    border: 2px dashed var(--gray);
    border-radius: var(--radius);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--gray);
    font-size: 0.9rem;
    min-height: 200px;
    width: 100%;
    height: 100%;
}

.image-placeholder.large {
    min-height: 400px;
}

.image-placeholder.small {
    min-height: 50px;
    width: 50px;
    border-radius: 50%;
    font-size: 1.5rem;
}

/* ===== Hero Section ===== */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 4rem;
    padding-top: 8rem;
    max-width: 1200px;
    margin: 0 auto;
}

.hero-content {
    flex: 1;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    background: rgba(16, 185, 129, 0.15);
    color: #10b981;
    padding: 0.5rem 1rem;
    border-radius: 50px;
    font-size: 0.85rem;
    margin-bottom: 1.5rem;
}

.hero-badge::before {
    content: '';
    width: 8px;
    height: 8px;
    background: #10b981;
    border-radius: 50%;
    animation: pulse 2s infinite;
}

@keyframes pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.5; }
}

.hero h1 {
    font-size: 3.5rem;
    font-weight: 800;
    line-height: 1.1;
    margin-bottom: 0.5rem;
}

.hero h2 {
    font-size: 1.5rem;
    color: var(--gray-light);
    font-weight: 400;
    margin-bottom: 1.5rem;
}

.hero-description {
    color: var(--gray);
    font-size: 1.1rem;
    margin-bottom: 2rem;
    max-width: 500px;
}

.hero-buttons {
    display: flex;
    gap: 1rem;
    margin-bottom: 3rem;
}

.hero-stats {
    display: flex;
    gap: 3rem;
}

.stat {
    display: flex;
    flex-direction: column;
}

.stat-number {
    font-size: 2rem;
    font-weight: 700;
    color: var(--white);
}

.stat-label {
    color: var(--gray);
    font-size: 0.9rem;
}

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

.hero-image .image-placeholder {
    min-height: 450px;
    border-radius: 20px;
}

.floating-card {
    position: absolute;
    background: var(--dark-light);
    padding: 1rem 1.5rem;
    border-radius: var(--radius);
    display: flex;
    align-items: center;
    gap: 0.75rem;
    box-shadow: var(--shadow-lg);
    animation: float 3s ease-in-out infinite;
}

.floating-card.card-1 {
    top: 10%;
    right: -20px;
}

.floating-card.card-2 {
    bottom: 15%;
    left: -20px;
    animation-delay: 1.5s;
}

.card-icon {
    font-size: 1.25rem;
}

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

/* ===== About Section ===== */
.about {
    background: var(--dark-light);
}

.about .section-container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
}

.about-image {
    position: relative;
}

.experience-badge {
    position: absolute;
    bottom: -20px;
    right: -20px;
    background: var(--gradient);
    padding: 1.5rem;
    border-radius: var(--radius);
    text-align: center;
}

.exp-number {
    display: block;
    font-size: 2.5rem;
    font-weight: 800;
}

.exp-text {
    font-size: 0.85rem;
}

.about-content h2 {
    font-size: 2.25rem;
    margin-bottom: 1.5rem;
    line-height: 1.3;
}

.about-content p {
    color: var(--gray-light);
    margin-bottom: 1rem;
}

.skills-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1rem;
    margin: 2rem 0;
}

.skill-item {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    background: var(--dark);
    padding: 0.75rem 1rem;
    border-radius: var(--radius);
    font-size: 0.9rem;
}

.skill-icon {
    font-size: 1.25rem;
}

/* ===== Services Section ===== */
.services-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
}

.service-card {
    background: var(--dark-light);
    padding: 2.5rem;
    border-radius: var(--radius);
    border: 1px solid rgba(255, 255, 255, 0.05);
    transition: var(--transition);
    position: relative;
}

.service-card:hover {
    transform: translateY(-5px);
    border-color: var(--primary);
}

.service-card.featured {
    background: var(--gradient);
    border: none;
}

.featured-badge {
    position: absolute;
    top: 1rem;
    right: 1rem;
    background: rgba(255, 255, 255, 0.2);
    padding: 0.25rem 0.75rem;
    border-radius: 50px;
    font-size: 0.75rem;
}

.service-icon {
    font-size: 2.5rem;
    margin-bottom: 1.5rem;
}

.service-card h3 {
    font-size: 1.25rem;
    margin-bottom: 1rem;
}

.service-card p {
    color: var(--gray-light);
    margin-bottom: 1.5rem;
    font-size: 0.95rem;
}

.service-card.featured p {
    color: rgba(255, 255, 255, 0.8);
}

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

.service-list li {
    padding: 0.5rem 0;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    font-size: 0.9rem;
}

/* ===== Portfolio Section ===== */
.portfolio {
    background: var(--dark-light);
}

.portfolio-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1.5rem;
}

.portfolio-card {
    position: relative;
    border-radius: var(--radius);
    overflow: hidden;
    cursor: pointer;
}

.portfolio-card.large {
    grid-column: span 2;
    grid-row: span 2;
}

.portfolio-image {
    position: relative;
    height: 100%;
}

.portfolio-image .image-placeholder {
    min-height: 250px;
}

.portfolio-card.large .image-placeholder {
    min-height: 100%;
}

.portfolio-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(to top, rgba(15, 23, 42, 0.95) 0%, transparent 100%);
    padding: 1.5rem;
    display: flex;
    flex-direction: column;
    justify-content: flex-end;
    opacity: 0;
    transition: var(--transition);
}

.portfolio-card:hover .portfolio-overlay {
    opacity: 1;
}

.portfolio-category {
    display: inline-block;
    background: var(--primary);
    padding: 0.25rem 0.75rem;
    border-radius: 50px;
    font-size: 0.75rem;
    margin-bottom: 0.5rem;
    width: fit-content;
}

.portfolio-overlay h3 {
    font-size: 1.25rem;
    margin-bottom: 0.5rem;
}

.portfolio-overlay p {
    color: var(--gray-light);
    font-size: 0.9rem;
    margin-bottom: 1rem;
}

.portfolio-tags {
    display: flex;
    gap: 0.5rem;
    flex-wrap: wrap;
}

.portfolio-tags span {
    background: rgba(255, 255, 255, 0.1);
    padding: 0.25rem 0.75rem;
    border-radius: 50px;
    font-size: 0.75rem;
}

/* ===== Testimonials Section ===== */
.testimonials-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
}

.testimonial-card {
    background: var(--dark-light);
    padding: 2rem;
    border-radius: var(--radius);
    border: 1px solid rgba(255, 255, 255, 0.05);
}

.testimonial-rating {
    color: #fbbf24;
    font-size: 1.25rem;
    margin-bottom: 1rem;
}

.testimonial-text {
    color: var(--gray-light);
    font-style: italic;
    margin-bottom: 1.5rem;
    line-height: 1.7;
}

.testimonial-author {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.author-info h4 {
    font-size: 1rem;
    margin-bottom: 0.25rem;
}

.author-info span {
    color: var(--gray);
    font-size: 0.85rem;
}

/* ===== FAQ Section ===== */
.faq {
    background: var(--dark-light);
}

.faq-list {
    max-width: 800px;
    margin: 0 auto;
}

.faq-item {
    background: var(--dark);
    border-radius: var(--radius);
    margin-bottom: 1rem;
    overflow: hidden;
}

.faq-question {
    width: 100%;
    padding: 1.5rem;
    background: none;
    border: none;
    color: var(--white);
    font-size: 1rem;
    font-weight: 600;
    text-align: left;
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
    transition: var(--transition);
}

.faq-question:hover {
    color: var(--primary);
}

.faq-icon {
    font-size: 1.5rem;
    color: var(--primary);
}

.faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease;
}

.faq-item.active .faq-answer {
    max-height: 200px;
}

.faq-answer p {
    padding: 0 1.5rem 1.5rem;
    color: var(--gray-light);
    line-height: 1.7;
}

/* ===== Contact Section ===== */
.contact-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
}

.contact-info h2 {
    font-size: 2.5rem;
    margin-bottom: 1rem;
    line-height: 1.2;
}

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

.contact-details {
    margin-bottom: 2rem;
}

.contact-item {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-bottom: 1.5rem;
}

.contact-icon {
    font-size: 1.5rem;
    width: 50px;
    height: 50px;
    background: var(--dark-light);
    border-radius: var(--radius);
    display: flex;
    align-items: center;
    justify-content: center;
}

.contact-item h4 {
    font-size: 0.9rem;
    margin-bottom: 0.25rem;
}

.contact-item span {
    color: var(--gray-light);
}

.social-links {
    display: flex;
    gap: 1rem;
}

.social-link {
    background: var(--dark-light);
    padding: 0.75rem 1.5rem;
    border-radius: 50px;
    color: var(--white);
    text-decoration: none;
    font-size: 0.9rem;
    transition: var(--transition);
}

.social-link:hover {
    background: var(--primary);
}

.contact-form-container {
    background: var(--dark-light);
    padding: 2.5rem;
    border-radius: var(--radius);
}

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

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 500;
    font-size: 0.9rem;
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 1rem;
    background: var(--dark);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: var(--radius);
    color: var(--white);
    font-size: 1rem;
    transition: var(--transition);
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary);
}

.form-group textarea {
    resize: vertical;
}

/* ===== Footer ===== */
.footer {
    background: var(--dark-light);
    padding: 4rem 2rem 2rem;
    border-top: 1px solid rgba(255, 255, 255, 0.05);
}

.footer-content {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr;
    gap: 4rem;
    margin-bottom: 3rem;
}

.footer-brand p {
    color: var(--gray);
    margin-top: 1rem;
    max-width: 300px;
}

.footer-links h4,
.footer-services h4 {
    margin-bottom: 1.5rem;
}

.footer-links a,
.footer-services a {
    display: block;
    color: var(--gray);
    text-decoration: none;
    margin-bottom: 0.75rem;
    transition: var(--transition);
}

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

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

/* ===== Responsive ===== */
@media (max-width: 1024px) {
    .hero {
        flex-direction: column;
        text-align: center;
        padding-top: 6rem;
    }

    .hero-description {
        margin: 0 auto 2rem;
    }

    .hero-buttons {
        justify-content: center;
    }

    .hero-stats {
        justify-content: center;
    }

    .about .section-container {
        grid-template-columns: 1fr;
    }

    .services-grid {
        grid-template-columns: 1fr;
    }

    .portfolio-grid {
        grid-template-columns: 1fr 1fr;
    }

    .portfolio-card.large {
        grid-column: span 2;
        grid-row: span 1;
    }

    .testimonials-grid {
        grid-template-columns: 1fr;
    }

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

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

    .footer-brand p {
        max-width: none;
    }
}

@media (max-width: 768px) {
    .nav-links {
        display: none;
    }

    .menu-toggle {
        display: block;
    }

    .hero h1 {
        font-size: 2.5rem;
    }

    .section-header h2 {
        font-size: 2rem;
    }

    .skills-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .portfolio-grid {
        grid-template-columns: 1fr;
    }

    .portfolio-card.large {
        grid-column: span 1;
    }

    .portfolio-overlay {
        opacity: 1;
    }
}