:root {
    --bg-dark: #0B0F19;
    --bg-card: rgba(255, 255, 255, 0.03);
    --primary: #00D4FF;
    --secondary: #BD00FF;
    --text-main: #F8FAFC;
    --text-muted: #94A3B8;
    --glass-border: rgba(255, 255, 255, 0.1);
    --font-heading: 'Orbitron', sans-serif;
    --font-body: 'Inter', sans-serif;
    --transition: all 0.4s cubic-bezier(0.23, 1, 0.32, 1);

    /* Fluid Typography */
    --fs-h1: clamp(2.5rem, 8vw + 1rem, 5rem);
    --fs-h2: clamp(2rem, 5vw + 1rem, 3.5rem);
    --fs-h3: clamp(1.2rem, 3vw + 0.5rem, 1.8rem);
    --fs-body: clamp(0.95rem, 1vw + 0.5rem, 1.1rem);
}

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

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

html {
    scroll-behavior: smooth;
    scroll-padding-top: 100px;
}

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

/* Typography Extensions */
.gradient-text {
    background: linear-gradient(90deg, var(--primary), var(--secondary));
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    font-weight: 900;
}

h1 {
    font-size: var(--fs-h1);
    font-family: var(--font-heading);
    letter-spacing: -1px;
    line-height: 1.1;
}

h2 {
    font-size: var(--fs-h2);
    font-family: var(--font-heading);
    letter-spacing: 1px;
}

h3 {
    font-size: var(--fs-h3);
    font-family: var(--font-heading);
}

img {
    max-width: 100%;
    height: auto;
    display: block;
}

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

#main-header.scrolled {
    background: rgba(11, 15, 25, 0.8);
    backdrop-filter: blur(15px);
    padding: 1rem 0;
    border-bottom: 1px solid var(--glass-border);
}

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

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

.logo-img-header {
    height: 55px;
    width: auto;
    border-radius: 4px;
    transition: var(--transition);
}

.logo-img-header:hover {
    transform: scale(1.05);
    filter: drop-shadow(0 0 15px rgba(189, 0, 255, 0.5));
}

.nav-links {
    display: flex;
    list-style: none;
    gap: 2.5rem;
    align-items: center;
}

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

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

.hamburger {
    display: none;
    cursor: pointer;
    z-index: 1001;
}

.hamburger .bar {
    display: block;
    width: 25px;
    height: 3px;
    margin: 5px auto;
    background-color: var(--text-main);
    transition: var(--transition);
    border-radius: 3px;
}

/* Scroll Animations */
.reveal,
.reveal-delay,
.reveal-delay-2,
.service-card,
.portfolio-item,
.process-step {
    opacity: 0;
    transform: translateY(30px);
    transition: all 0.8s cubic-bezier(0.23, 1, 0.32, 1);
}

.service-card:hover,
.service-card.highlight:hover {
    transform: translateY(-10px) !important;
}

.reveal-delay {
    transition-delay: 0.1s;
}

.reveal-delay-2 {
    transition-delay: 0.2s;
}

.service-card:nth-child(2),
.portfolio-item:nth-child(2) {
    transition-delay: 0.1s;
}

.service-card:nth-child(3),
.portfolio-item:nth-child(3) {
    transition-delay: 0.2s;
}

.in-view {
    opacity: 1 !important;
    transform: translateY(0) !important;
}

/* Buttons */
.btn-primary {
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    color: white !important;
    padding: 0.8rem 1.8rem;
    border-radius: 5px;
    font-weight: 700;
    transition: var(--transition);
    border: none;
    text-decoration: none;
    display: inline-block;
}

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 10px 20px rgba(0, 212, 255, 0.3);
}

.btn-secondary {
    background: transparent;
    border: 1px solid var(--primary);
    color: var(--primary);
    text-shadow: 0 0 10px rgba(0, 212, 255, 0.3);
    padding: 0.8rem 1.8rem;
    border-radius: 5px;
    text-decoration: none;
    transition: var(--transition);
}

.btn-secondary:hover {
    background: rgba(0, 212, 255, 0.1);
    box-shadow: 0 0 20px rgba(0, 212, 255, 0.2);
    transform: translateY(-3px);
}

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

.hero-content {
    display: grid;
    grid-template-columns: 1.2fr 1fr;
    gap: 4rem;
    align-items: center;
}

.hero-text h1 {
    margin-bottom: 1.5rem;
}

.hero-text p {
    font-size: 1.1rem;
    color: var(--text-muted);
    margin-bottom: 2.5rem;
    max-width: 600px;
}

.hero-btns {
    display: flex;
    gap: 1.5rem;
    flex-wrap: wrap;
}

.hero-visual {
    position: relative;
}

.visual-container {
    position: relative;
    z-index: 1;
}

.hero-img {
    width: 100%;
    border-radius: 20px;
    box-shadow: 0 20px 50px rgba(0, 0, 0, 0.5);
    animation: float 6s ease-in-out infinite;
}

.glow-effect {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 120%;
    height: 120%;
    background: radial-gradient(circle, rgba(0, 212, 255, 0.1), transparent 70%);
    z-index: -1;
}

/* Services */
.services {
    padding: 100px 0;
}

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

.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.service-card {
    background: var(--bg-card);
    border: 1px solid var(--glass-border);
    padding: 3rem 2rem;
    border-radius: 15px;
    transition: var(--transition);
    text-align: center;
}

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

.service-card.highlight {
    border-color: rgba(189, 0, 255, 0.3);
    position: relative;
    overflow: hidden;
}

.service-card.highlight::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 4px;
    background: linear-gradient(90deg, var(--primary), var(--secondary));
}

.service-card .icon {
    font-size: 3rem;
    margin-bottom: 1.5rem;
    display: block;
}

.service-card h3 {
    margin-bottom: 1rem;
    font-size: 1.5rem;
}

/* Portfolio */
.portfolio {
    padding: 100px 0;
}

.portfolio-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(clamp(280px, 40%, 450px), 1fr));
    gap: 1.5rem;
}

.portfolio-item {
    position: relative;
    border-radius: 15px;
    overflow: hidden;
    height: 450px;
    border: 1px solid var(--glass-border);
}

.portfolio-item img,
.placeholder-3d {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: var(--transition);
}

.placeholder-3d {
    background: linear-gradient(45deg, #1a1f2e, #0B0F19);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.9rem;
    color: var(--text-muted);
}

.portfolio-overlay {
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    padding: 2.5rem 1.5rem 1.5rem;
    background: linear-gradient(transparent, rgba(6, 9, 15, 0.95) 50%);
    transform: translateY(100%);
    opacity: 0;
    transition: var(--transition);
    display: flex;
    flex-direction: column;
    justify-content: flex-end;
}

.portfolio-item:hover .portfolio-overlay {
    transform: translateY(0);
    opacity: 1;
}

.portfolio-overlay h3 {
    font-size: 1.2rem;
    margin-bottom: 0.5rem;
    color: var(--primary);
    line-height: 1.2;
}

.portfolio-overlay p {
    font-size: 0.9rem;
    color: var(--text-main);
    line-height: 1.4;
    margin: 0;
}

.portfolio-item:hover img,
.portfolio-item:hover .placeholder-3d {
    transform: scale(1.1);
}

/* Contact Section */
.contact-section {
    padding: 100px 0;
    background: radial-gradient(circle at bottom right, rgba(189, 0, 255, 0.05), transparent 60%);
}

.contact-wrapper {
    display: grid;
    grid-template-columns: 1fr 1.5fr;
    gap: 4rem;
    align-items: center;
}

.order-form {
    background: var(--bg-card);
    padding: 3rem;
    border-radius: 20px;
    border: 1px solid var(--glass-border);
}

.input-group {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1rem;
    margin-bottom: 1rem;
}

input,
textarea {
    background: rgba(255, 255, 255, 0.02);
    border: 1px solid var(--glass-border);
    padding: 1rem;
    color: white;
    border-radius: 8px;
    font-family: var(--font-body);
    transition: var(--transition);
    width: 100%;
}

input:focus,
textarea:focus {
    outline: none;
    border-color: var(--primary);
    background: rgba(255, 255, 255, 0.05);
    box-shadow: 0 0 15px rgba(0, 212, 255, 0.1);
}

textarea {
    margin-bottom: 1.5rem;
    resize: none;
}

.order-form .btn-primary {
    width: 100%;
    cursor: pointer;
}

.section-subtitle {
    text-align: center;
    color: var(--text-muted);
    margin: -3rem auto 3rem;
    max-width: 600px;
}

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

/* Process Section */
.process-section {
    padding: 100px 0;
    background: linear-gradient(180deg, var(--bg-dark), #0d121f);
}

.process-grid {
    display: flex;
    flex-direction: column;
    gap: 6rem;
    margin-top: 4rem;
}

.process-step {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
}

.process-step.reverse {
    direction: rtl;
}

.process-step.reverse .process-info {
    direction: ltr;
}

.process-img-wrapper {
    position: relative;
    border-radius: 20px;
    overflow: hidden;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.4);
    border: 1px solid var(--glass-border);
}

.process-img-wrapper img {
    width: 100%;
    height: auto;
    display: block;
    transition: var(--transition);
}

.process-step:hover .process-img-wrapper img {
    transform: scale(1.05);
}

.step-num {
    font-family: var(--font-heading);
    font-size: 4.5rem;
    font-weight: 900;
    color: rgba(0, 212, 255, 0.07);
    display: block;
    margin-bottom: -1rem;
    line-height: 1;
}

.process-info h3 {
    font-size: 2rem;
    margin-bottom: 1.5rem;
    color: var(--primary);
}

.process-info p {
    color: var(--text-muted);
    font-size: 1.1rem;
}

/* Footer */
footer {
    padding: 80px 0 30px;
    background: #06090F;
    border-top: 1px solid var(--glass-border);
    text-align: center;
}

.footer-content {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 2rem;
    margin-bottom: 3rem;
}

.footer-info a {
    color: var(--primary);
    text-decoration: none;
    font-weight: 600;
}

.footer-links {
    display: flex;
    gap: 2rem;
}

.footer-links a {
    color: var(--text-muted);
    text-decoration: none;
    font-size: 0.8rem;
}

.footer-bottom {
    font-size: 0.8rem;
    color: var(--text-muted);
}

/* Animations */
@keyframes float {

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

    50% {
        transform: translateY(-20px);
    }
}

/* ==========================================================================
   RESPONSIVE DESIGN (BREAKPOINTS)
   ========================================================================== */

/* Tablet & Smaller Desktop (Up to 1024px) */
@media (max-width: 1024px) {
    .container {
        padding: 0 1.5rem;
    }

    .hero-content {
        gap: 2rem;
    }
}

/* Mobile & Small Tablets (Up to 768px) */
@media (max-width: 768px) {
    .hamburger {
        display: block;
    }

    .nav-links {
        position: fixed;
        left: -100%;
        top: 0;
        flex-direction: column;
        background: rgba(11, 15, 25, 0.98);
        backdrop-filter: blur(20px);
        width: 100%;
        height: 100vh;
        justify-content: center;
        transition: var(--transition);
        z-index: 999;
    }

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

    .hero {
        height: auto;
        padding-top: 120px;
        padding-bottom: 60px;
    }

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

    .hero-text p {
        margin-left: auto;
        margin-right: auto;
    }

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

    .hero-visual {
        order: -1;
        max-width: 400px;
        margin: 0 auto;
    }

    .process-step,
    .process-step.reverse {
        grid-template-columns: 1fr;
        text-align: center;
        direction: ltr;
        gap: 1.5rem;
    }

    .process-step.reverse .process-info {
        text-align: center;
    }

    .step-num {
        font-size: 3.5rem;
    }

    .contact-wrapper {
        grid-template-columns: 1fr;
        text-align: center;
    }

    .input-group {
        grid-template-columns: 1fr;
    }

    .portfolio-item.large {
        grid-column: span 1;
        grid-row: span 1;
        height: 350px;
    }
}

/* Very Small Devices (Up to 480px) */
@media (max-width: 480px) {
    .hero-btns {
        flex-direction: column;
    }

    .btn-primary,
    .btn-secondary {
        width: 100%;
        text-align: center;
    }

    .section-title {
        margin-bottom: 2rem;
    }
}