/* Impertio Studio - Main Stylesheet */
/* Brand Colors: Black (#0a0a0a) + Electric Orange (#ff6b00) */

/* ===== CSS VARIABLES ===== */
:root {
    /* Brand Colors */
    --black: #0a0a0a;
    --black-soft: #1a1a1a;
    --black-medium: #2d2d2d;
    --accent: #ff6b00;
    --accent-bright: #ff8c00;
    --accent-glow: #ffaa00;
    --tech-green: #00ff88;
    
    /* Neutrals */
    --gray-dark: #444444;
    --gray-mid: #888888;
    --gray-light: #cccccc;
    --white: #ffffff;
    --off-white: #f5f5f5;
    
    /* Typography */
    --font-primary: 'Montserrat', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --font-mono: 'JetBrains Mono', 'Fira Code', 'Consolas', monospace;
    
    /* Spacing */
    --section-padding: 100px 0;
    --container-width: 1200px;
}

/* ===== RESET & BASE ===== */
*, *::before, *::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-primary);
    font-size: 16px;
    line-height: 1.6;
    color: var(--white);
    background-color: var(--black);
}

a {
    color: var(--accent);
    text-decoration: none;
    transition: color 0.3s ease;
}

a:hover {
    color: var(--accent-bright);
}

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

/* ===== TYPOGRAPHY ===== */
h1, h2, h3, h4, h5, h6 {
    font-weight: 800;
    line-height: 1.2;
    margin-bottom: 1rem;
}

h1 {
    font-size: 3.5rem;
    letter-spacing: 2px;
}

h2 {
    font-size: 2.5rem;
    letter-spacing: 1px;
}

h3 {
    font-size: 1.5rem;
}

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

/* ===== LAYOUT ===== */
.container {
    max-width: var(--container-width);
    margin: 0 auto;
    padding: 0 20px;
}

section {
    padding: var(--section-padding);
}

/* ===== HEADER & NAVIGATION ===== */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(10, 10, 10, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--black-medium);
}

.header .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 15px 20px;
}

.logo {
    display: flex;
    align-items: center;
    gap: 12px;
}

.logo img {
    height: 45px;
    width: auto;
}

.logo-text {
    display: flex;
    flex-direction: column;
}

.logo-text .company {
    font-size: 1.4rem;
    font-weight: 900;
    color: var(--white);
    letter-spacing: 2px;
}

.logo-text .tagline {
    font-size: 0.9rem;
    font-weight: 700;
    color: var(--accent);
    letter-spacing: 4px;
}

.nav {
    display: flex;
    gap: 40px;
}

.nav a {
    color: var(--gray-light);
    font-weight: 600;
    font-size: 0.9rem;
    letter-spacing: 1px;
    text-transform: uppercase;
    padding: 8px 0;
    position: relative;
}

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

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

.nav a:hover::after {
    width: 100%;
}

.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    cursor: pointer;
    padding: 10px;
}

.nav-toggle span {
    display: block;
    width: 25px;
    height: 2px;
    background: var(--white);
    transition: 0.3s;
}

/* ===== HERO SECTION ===== */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    position: relative;
    overflow: hidden;
    padding-top: 80px;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 5px;
    background: linear-gradient(90deg, var(--accent), var(--accent-glow), var(--tech-green));
}

.hero::after {
    content: '';
    position: absolute;
    top: 50%;
    right: -200px;
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, rgba(255, 107, 0, 0.1) 0%, transparent 70%);
    transform: translateY(-50%);
    pointer-events: none;
}

.hero-content {
    position: relative;
    z-index: 1;
}

.hero-label {
    display: inline-block;
    font-size: 0.85rem;
    font-weight: 700;
    letter-spacing: 3px;
    text-transform: uppercase;
    color: var(--accent);
    margin-bottom: 20px;
    padding: 8px 16px;
    border: 1px solid var(--accent);
    border-radius: 4px;
}

.hero h1 {
    font-size: 4rem;
    font-weight: 900;
    margin-bottom: 1.5rem;
    max-width: 700px;
}

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

.hero-subtitle {
    font-size: 1.3rem;
    color: var(--gray-light);
    max-width: 600px;
    margin-bottom: 2rem;
}

.hero-payoff {
    font-family: var(--font-mono);
    font-size: 1rem;
    color: var(--tech-green);
    margin-bottom: 2.5rem;
}

.hero-payoff::before {
    content: '$ ';
    color: var(--gray-mid);
}

/* ===== BUTTONS ===== */
.btn {
    display: inline-block;
    padding: 16px 32px;
    font-family: var(--font-primary);
    font-size: 0.9rem;
    font-weight: 700;
    letter-spacing: 1px;
    text-transform: uppercase;
    border-radius: 4px;
    cursor: pointer;
    transition: all 0.3s ease;
    border: none;
}

.btn-primary {
    background: var(--accent);
    color: var(--black);
}

.btn-primary:hover {
    background: var(--accent-bright);
    color: var(--black);
    transform: translateY(-2px);
    box-shadow: 0 10px 30px rgba(255, 107, 0, 0.3);
}

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

.btn-secondary:hover {
    background: var(--white);
    color: var(--black);
}

.btn-group {
    display: flex;
    gap: 15px;
    flex-wrap: wrap;
}

/* ===== SERVICES SECTION ===== */
.services {
    background: var(--black-soft);
    position: relative;
}

.services::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--black-medium), transparent);
}

.section-header {
    text-align: center;
    margin-bottom: 60px;
}

.section-header h2 {
    margin-bottom: 15px;
}

.section-header p {
    font-size: 1.1rem;
    max-width: 600px;
    margin: 0 auto;
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 30px;
}

.service-card {
    background: var(--black);
    border-radius: 12px;
    padding: 40px;
    border: 1px solid var(--black-medium);
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.service-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 4px;
    height: 100%;
    background: var(--accent);
    transform: scaleY(0);
    transition: transform 0.3s ease;
}

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

.service-card:hover::before {
    transform: scaleY(1);
}

.service-icon {
    font-size: 2.5rem;
    margin-bottom: 20px;
}

.service-card h3 {
    color: var(--accent);
    margin-bottom: 15px;
}

.service-card p {
    color: var(--gray-light);
    margin: 0;
}

/* ===== ABOUT SECTION ===== */
.about {
    background: var(--black);
}

.about-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 80px;
    align-items: center;
}

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

.about-text p {
    font-size: 1.1rem;
}

.about-values {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
    margin-top: 30px;
}

.value-item {
    padding: 25px;
    background: var(--black-soft);
    border-radius: 8px;
    border-left: 3px solid var(--accent);
}

.value-item h4 {
    color: var(--accent);
    font-size: 1rem;
    margin-bottom: 8px;
}

.value-item p {
    font-size: 0.9rem;
    margin: 0;
    color: var(--gray-mid);
}

.about-visual {
    position: relative;
}

.about-visual .code-block {
    background: var(--black-soft);
    border-radius: 12px;
    padding: 30px;
    font-family: var(--font-mono);
    font-size: 0.9rem;
    border: 1px solid var(--black-medium);
}

.about-visual .code-block .comment {
    color: var(--gray-mid);
}

.about-visual .code-block .keyword {
    color: var(--accent);
}

.about-visual .code-block .string {
    color: var(--tech-green);
}

/* ===== CTA SECTION ===== */
.cta {
    background: linear-gradient(135deg, var(--accent) 0%, var(--accent-bright) 100%);
    text-align: center;
    padding: 80px 0;
}

.cta h2 {
    color: var(--black);
    margin-bottom: 15px;
}

.cta p {
    color: var(--black);
    opacity: 0.8;
    font-size: 1.2rem;
    margin-bottom: 30px;
}

.cta .btn-secondary {
    border-color: var(--black);
    color: var(--black);
}

.cta .btn-secondary:hover {
    background: var(--black);
    color: var(--white);
}

/* ===== FOOTER ===== */
.footer {
    background: var(--black);
    padding: 60px 0 30px;
    border-top: 1px solid var(--black-medium);
}

.footer-content {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: 60px;
    margin-bottom: 50px;
}

.footer-brand .logo {
    margin-bottom: 20px;
}

.footer-brand p {
    font-size: 0.9rem;
    color: var(--gray-mid);
}

.footer h4 {
    color: var(--accent);
    font-size: 0.85rem;
    letter-spacing: 2px;
    text-transform: uppercase;
    margin-bottom: 20px;
}

.footer ul {
    list-style: none;
}

.footer ul li {
    margin-bottom: 12px;
}

.footer ul a {
    color: var(--gray-light);
    font-size: 0.9rem;
}

.footer ul a:hover {
    color: var(--white);
}

.footer-bottom {
    padding-top: 30px;
    border-top: 1px solid var(--black-medium);
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 0.85rem;
    color: var(--gray-mid);
}

.footer-bottom .payoff {
    color: var(--accent);
    font-weight: 700;
    letter-spacing: 1px;
}

/* ===== RESPONSIVE ===== */
@media (max-width: 992px) {
    h1 {
        font-size: 2.5rem;
    }
    
    .hero h1 {
        font-size: 3rem;
    }
    
    .about-content {
        grid-template-columns: 1fr;
        gap: 40px;
    }
    
    .footer-content {
        grid-template-columns: 1fr 1fr;
        gap: 40px;
    }
}

@media (max-width: 768px) {
    .nav {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background: var(--black);
        flex-direction: column;
        padding: 20px;
        gap: 0;
        border-bottom: 1px solid var(--black-medium);
    }
    
    .nav.active {
        display: flex;
    }
    
    .nav a {
        padding: 15px 0;
        border-bottom: 1px solid var(--black-medium);
    }
    
    .nav-toggle {
        display: flex;
    }
    
    .hero h1 {
        font-size: 2.2rem;
    }
    
    .hero-subtitle {
        font-size: 1.1rem;
    }
    
    .services-grid {
        grid-template-columns: 1fr;
    }
    
    .about-values {
        grid-template-columns: 1fr;
    }
    
    .footer-content {
        grid-template-columns: 1fr;
        gap: 30px;
    }
    
    .footer-bottom {
        flex-direction: column;
        gap: 15px;
        text-align: center;
    }
}