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

:root {
    --primary-color: #000000;
    --text-color: #ffffff;
    --accent-color: #AB7BFF;
    --accent-hover: #9965FF;
    --section-padding: 100px 0;
    --container-padding: 0 20px;
    --border-radius: 8px;
    --transition: all 0.3s ease;
    --max-width: 1200px;
    --font-family: 'Montserrat', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
}

/* ===== Base Styles ===== */
html {
    scroll-behavior: smooth;
    font-size: 16px;
}

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

/* ===== Typography ===== */
h1, h2, h3, h4, h5, h6 {
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: 1rem;
}

h1 {
    font-size: clamp(3rem, 8vw, 6rem);
    font-weight: 800;
    letter-spacing: -0.02em;
}

h2 {
    font-size: clamp(2rem, 5vw, 3.5rem);
    font-weight: 700;
}

h3 {
    font-size: clamp(1.5rem, 3vw, 2rem);
    font-weight: 600;
}

p {
    font-size: 1.1rem;
    font-weight: 300;
    margin-bottom: 1.5rem;
}

/* ===== Container & Layout ===== */
.container {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: var(--container-padding);
}

/* ===== Animations ===== */
.fade-in {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.8s ease, transform 0.8s ease;
}

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

/* ===== Header & Navigation ===== */
.header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    background: rgba(0, 0, 0, 0.95);
    backdrop-filter: blur(10px);
    z-index: 1000;
    transition: var(--transition);
}

.nav-container {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 1rem 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo a {
    font-size: 2rem;
    font-weight: 800;
    color: var(--text-color);
    text-decoration: none;
    letter-spacing: -0.02em;
    display: flex;
    align-items: center;
}

.logo-img {
    height: 50px;
    width: auto;
    transition: var(--transition);
    filter: brightness(1);
}

.logo-img:hover {
    filter: brightness(1.1);
    transform: scale(1.05);
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 2.5rem;
}

.nav-link {
    color: var(--text-color);
    text-decoration: none;
    font-weight: 400;
    font-size: 1rem;
    transition: var(--transition);
    position: relative;
}

.nav-link:hover {
    color: var(--accent-color);
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--accent-color);
    transition: width 0.3s ease;
}

.nav-link:hover::after {
    width: 100%;
}

/* Hamburger Menu */
.hamburger {
    display: none;
    flex-direction: column;
    cursor: pointer;
}

.bar {
    width: 25px;
    height: 3px;
    background: var(--text-color);
    margin: 3px 0;
    transition: var(--transition);
}

/* ===== Hero Section ===== */
.hero {
    height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    text-align: center;
    background: var(--primary-color);
}

.hero-content {
    z-index: 2;
    max-width: 800px;
    padding: 0 20px;
}

.hero-title {
    margin-bottom: 1rem;
    background: linear-gradient(135deg, var(--text-color) 0%, var(--accent-color) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-logo {
    margin-bottom: 2rem;
    text-align: center;
}

.hero-logo-img {
    height: clamp(120px, 15vw, 200px);
    width: auto;
    filter: drop-shadow(0 10px 30px rgba(171, 123, 255, 0.3));
    transition: var(--transition);
    animation: float 3s ease-in-out infinite;
}

.hero-logo-img:hover {
    filter: drop-shadow(0 15px 40px rgba(171, 123, 255, 0.5));
    transform: scale(1.05);
}

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

.hero-subtitle {
    font-size: clamp(1.5rem, 4vw, 2.5rem);
    font-weight: 600;
    margin-bottom: 1.5rem;
    color: var(--text-color);
}

.hero-description {
    font-size: 1.3rem;
    font-weight: 300;
    margin-bottom: 3rem;
    opacity: 0.9;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

.cta-button {
    display: inline-block;
    padding: 1rem 2.5rem;
    background: var(--accent-color);
    color: var(--primary-color);
    text-decoration: none;
    font-weight: 600;
    font-size: 1.1rem;
    border-radius: var(--border-radius);
    transition: var(--transition);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.cta-button:hover {
    background: var(--accent-hover);
    transform: translateY(-2px);
    box-shadow: 0 10px 30px rgba(171, 123, 255, 0.3);
}

/* ===== Section Styles ===== */
section {
    padding: var(--section-padding);
}

.section-title {
    text-align: center;
    margin-bottom: 4rem;
    color: var(--text-color);
}

/* ===== Services Section ===== */
.services {
    background: var(--primary-color);
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 3rem;
    margin-top: 2rem;
}

.service-card {
    text-align: center;
    padding: 3rem 2rem;
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: var(--border-radius);
    transition: var(--transition);
    background: rgba(255, 255, 255, 0.02);
}

.service-card:hover {
    transform: translateY(-10px);
    border-color: var(--accent-color);
    background: rgba(171, 123, 255, 0.05);
}

.service-icon {
    margin-bottom: 2rem;
    color: var(--accent-color);
}

.service-title {
    color: var(--text-color);
    margin-bottom: 1.5rem;
    font-size: 1.5rem;
}

.service-description {
    color: rgba(255, 255, 255, 0.8);
    font-size: 1rem;
    line-height: 1.6;
}

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

.portfolio-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 2rem;
    margin-top: 2rem;
}

.portfolio-item {
    position: relative;
    overflow: hidden;
    border-radius: var(--border-radius);
    aspect-ratio: 4/3;
}

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

.portfolio-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: var(--transition);
}

.portfolio-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(to bottom, transparent, rgba(0, 0, 0, 0.8));
    display: flex;
    flex-direction: column;
    justify-content: flex-end;
    padding: 2rem;
    opacity: 0;
    transition: var(--transition);
}

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

.portfolio-item:hover .portfolio-image img {
    transform: scale(1.1);
}

.portfolio-overlay h4 {
    color: var(--text-color);
    font-size: 1.3rem;
    margin-bottom: 0.5rem;
}

.portfolio-overlay p {
    color: var(--accent-color);
    font-size: 1rem;
    margin: 0;
}

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

.about-content {
    display: grid;
    grid-template-columns: 1fr 400px;
    gap: 4rem;
    align-items: center;
}

.about-text {
    max-width: 600px;
}

.about-description {
    font-size: 1.1rem;
    color: rgba(255, 255, 255, 0.9);
    line-height: 1.8;
    margin-bottom: 2rem;
}

.about-image img {
    width: 100%;
    height: 500px;
    object-fit: cover;
    border-radius: var(--border-radius);
    filter: grayscale(100%);
    transition: var(--transition);
}

.about-image img:hover {
    filter: grayscale(0%);
    transform: scale(1.02);
}

/* ===== Contact Section ===== */
.contact {
    background: var(--primary-color);
}

.contact-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    margin-top: 2rem;
}

.form {
    background: rgba(255, 255, 255, 0.05);
    padding: 3rem;
    border-radius: var(--border-radius);
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.form-group {
    margin-bottom: 2rem;
}

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

.form-group input,
.form-group textarea,
.form-group select {
    width: 100%;
    padding: 1rem;
    background: rgba(255, 255, 255, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: var(--border-radius);
    color: var(--text-color);
    font-family: var(--font-family);
    font-size: 1rem;
    transition: var(--transition);
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
    outline: none;
    border-color: var(--accent-color);
    background: rgba(255, 255, 255, 0.15);
}

.form-group select {
    cursor: pointer;
}

.form-group select option {
    background: var(--primary-color);
    color: var(--text-color);
    padding: 0.5rem;
}

.form-group textarea::placeholder {
    color: rgba(255, 255, 255, 0.5);
    font-style: italic;
}

.form-status {
    margin-top: 1rem;
    padding: 1rem;
    border-radius: var(--border-radius);
    text-align: center;
    font-weight: 600;
    display: none;
}

.form-status.success {
    background: rgba(34, 197, 94, 0.1);
    border: 1px solid rgba(34, 197, 94, 0.3);
    color: #22c55e;
}

.form-status.error {
    background: rgba(239, 68, 68, 0.1);
    border: 1px solid rgba(239, 68, 68, 0.3);
    color: #ef4444;
}

.submit-button {
    width: 100%;
    padding: 1rem 2rem;
    background: var(--accent-color);
    color: var(--primary-color);
    border: none;
    border-radius: var(--border-radius);
    font-family: var(--font-family);
    font-size: 1.1rem;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    position: relative;
    overflow: hidden;
}

.btn-loader {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
}

.submit-button:disabled {
    opacity: 0.7;
    cursor: not-allowed;
}

.submit-button:hover {
    background: var(--accent-hover);
    transform: translateY(-2px);
    box-shadow: 0 10px 30px rgba(171, 123, 255, 0.3);
}

.contact-info {
    padding: 3rem 0;
}

.contact-info h3 {
    margin-bottom: 2rem;
    color: var(--text-color);
}

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

.contact-item strong {
    color: var(--accent-color);
    display: block;
    margin-bottom: 0.5rem;
}

.contact-item a {
    color: var(--text-color);
    text-decoration: none;
    transition: var(--transition);
}

.contact-item a:hover {
    color: var(--accent-color);
}

.contact-item p {
    color: rgba(255, 255, 255, 0.9);
    margin: 0;
    line-height: 1.6;
}

/* ===== Footer ===== */
.footer {
    background: var(--primary-color);
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding: 3rem 0;
}

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

.footer-logo span {
    font-size: 1.5rem;
    font-weight: 800;
    color: var(--text-color);
}

.footer-logo-img {
    height: 40px;
    width: auto;
    opacity: 0.9;
    transition: var(--transition);
}

.footer-logo-img:hover {
    opacity: 1;
    transform: scale(1.02);
}

.footer-info {
    text-align: right;
}

.footer-info p {
    color: rgba(255, 255, 255, 0.7);
    margin: 0;
    font-size: 0.9rem;
}

/* ===== Responsive Design ===== */
@media (max-width: 768px) {
    :root {
        --section-padding: 60px 0;
        --container-padding: 0 15px;
    }

    /* Mobile Navigation */
    .nav-menu {
        position: fixed;
        left: -100%;
        top: 70px;
        flex-direction: column;
        background: rgba(0, 0, 0, 0.98);
        width: 100%;
        text-align: center;
        transition: 0.3s;
        padding: 2rem 0;
        gap: 1.5rem;
    }

    .nav-menu.active {
        left: 0;
    }

    .hamburger {
        display: flex;
    }

    .hamburger.active .bar:nth-child(2) {
        opacity: 0;
    }

    .hamburger.active .bar:nth-child(1) {
        transform: translateY(8px) rotate(45deg);
    }

    .hamburger.active .bar:nth-child(3) {
        transform: translateY(-8px) rotate(-45deg);
    }

    /* Hero Section */
    .hero-description {
        font-size: 1.1rem;
        margin-bottom: 2rem;
    }

    /* Services Grid */
    .services-grid {
        grid-template-columns: 1fr;
        gap: 2rem;
    }

    .service-card {
        padding: 2rem 1.5rem;
    }

    /* Portfolio Grid */
    .portfolio-grid {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }

    /* About Section */
    .about-content {
        grid-template-columns: 1fr;
        gap: 2rem;
        text-align: center;
    }

    .about-image {
        order: -1;
    }

    .about-image img {
        height: 300px;
    }

    /* Contact Section */
    .contact-content {
        grid-template-columns: 1fr;
        gap: 2rem;
    }

    .form {
        padding: 2rem;
    }

    /* Footer */
    .footer-content {
        flex-direction: column;
        gap: 1rem;
        text-align: center;
    }

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

    /* Logo responsive */
    .logo-img {
        height: 40px;
    }

    .footer-logo-img {
        height: 30px;
    }
}

@media (max-width: 480px) {
    .portfolio-grid {
        grid-template-columns: 1fr;
    }

    .portfolio-item {
        min-height: 250px;
    }

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

    .form {
        padding: 1.5rem;
    }

    .hero-description {
        font-size: 1rem;
    }

    /* Hero logo responsive */
    .hero-logo-img {
        height: clamp(80px, 20vw, 150px);
    }
}

/* ===== Custom Cursor (Optional Enhancement) ===== */
@media (min-width: 1024px) {
    body {
        cursor: none;
    }

    .cursor {
        position: fixed;
        width: 20px;
        height: 20px;
        background: var(--accent-color);
        border-radius: 50%;
        pointer-events: none;
        z-index: 9999;
        transform: translate(-50%, -50%);
        transition: all 0.1s ease;
        opacity: 0.8;
    }

    .cursor.hover {
        transform: translate(-50%, -50%) scale(1.5);
        opacity: 0.5;
    }
}

/* ===== Scroll Animations ===== */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.animate-on-scroll {
    animation: fadeInUp 0.8s ease forwards;
}

/* ===== Performance Optimizations ===== */
img {
    max-width: 100%;
    height: auto;
    loading: lazy;
}

/* ===== Screen Reader Only (SEO) ===== */
.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

/* Reduce motion for accessibility */
@media (prefers-reduced-motion: reduce) {
    * {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}