/* ===== CSS Variables ===== */
:root {
    --color-primary: #DC2626;
    --color-primary-dark: #B91C1C;
    --color-primary-light: #EF4444;
    --color-black: #0A0A0A;
    --color-dark: #141414;
    --color-dark-secondary: #1F1F1F;
    --color-gray: #404040;
    --color-gray-light: #737373;
    --color-white: #FFFFFF;
    --color-off-white: #F5F5F5;
    
    --font-display: 'Bebas Neue', sans-serif;
    --font-body: 'Montserrat', sans-serif;
    
    --transition-fast: 0.2s ease;
    --transition-base: 0.3s ease;
    --transition-slow: 0.5s ease;
}

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

html {
    scroll-behavior: smooth;
    font-size: 16px;
}

body {
    font-family: var(--font-body);
    font-weight: 400;
    line-height: 1.6;
    color: var(--color-off-white);
    background-color: var(--color-black);
    overflow-x: hidden;
}

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

ul {
    list-style: none;
}

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

button, input, textarea, select {
    font-family: inherit;
    font-size: inherit;
    border: none;
    outline: none;
}

.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}

/* ===== Typography ===== */
.accent {
    color: var(--color-primary);
}

.section-tag {
    display: inline-block;
    font-size: 0.75rem;
    font-weight: 600;
    letter-spacing: 3px;
    text-transform: uppercase;
    color: var(--color-primary);
    margin-bottom: 16px;
    position: relative;
    padding-left: 40px;
}

.section-tag::before {
    content: '';
    position: absolute;
    left: 0;
    top: 50%;
    transform: translateY(-50%);
    width: 24px;
    height: 2px;
    background-color: var(--color-primary);
}

.section-title {
    font-family: var(--font-display);
    font-size: clamp(2.5rem, 5vw, 4rem);
    font-weight: 400;
    letter-spacing: 2px;
    line-height: 1.1;
    text-transform: uppercase;
    margin-bottom: 24px;
}

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

/* ===== Buttons ===== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 12px;
    padding: 16px 40px;
    font-weight: 600;
    font-size: 0.875rem;
    letter-spacing: 1px;
    text-transform: uppercase;
    cursor: pointer;
    transition: all var(--transition-base);
    position: relative;
    overflow: hidden;
}

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

.btn-primary::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.2), transparent);
    transition: left var(--transition-slow);
}

.btn-primary:hover {
    background-color: var(--color-primary-dark);
    border-color: var(--color-primary-dark);
    transform: translateY(-2px);
    box-shadow: 0 10px 30px rgba(220, 38, 38, 0.3);
}

.btn-primary:hover::before {
    left: 100%;
}

.btn-full {
    width: 100%;
}

/* ===== Header ===== */
.header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    padding: 20px 0;
    transition: all var(--transition-base);
}

.header.scrolled {
    background-color: rgba(10, 10, 10, 0.95);
    backdrop-filter: blur(10px);
    padding: 16px 0;
    box-shadow: 0 4px 30px rgba(0, 0, 0, 0.3);
}

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

.logo {
    display: flex;
    align-items: center;
    gap: 12px;
    font-family: var(--font-display);
    font-size: 1.5rem;
    letter-spacing: 2px;
}

.logo-pn {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 48px;
    height: 48px;
    background-color: var(--color-primary);
    color: var(--color-white);
    font-weight: 400;
}

.logo-text {
    color: var(--color-white);
    text-transform: uppercase;
}

.nav-list {
    display: flex;
    align-items: center;
    gap: 40px;
}

.nav-link {
    font-size: 0.875rem;
    font-weight: 500;
    letter-spacing: 1px;
    text-transform: uppercase;
    color: var(--color-off-white);
    position: relative;
    padding: 8px 0;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background-color: var(--color-primary);
    transition: width var(--transition-base);
}

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

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

.nav-toggle {
    display: none;
    width: 40px;
    height: 40px;
    background: transparent;
    cursor: pointer;
    position: relative;
}

.hamburger,
.hamburger::before,
.hamburger::after {
    width: 24px;
    height: 2px;
    background-color: var(--color-white);
    position: absolute;
    left: 50%;
    transform: translateX(-50%);
    transition: all var(--transition-base);
}

.hamburger {
    top: 50%;
    transform: translate(-50%, -50%);
}

.hamburger::before,
.hamburger::after {
    content: '';
}

.hamburger::before {
    top: -8px;
}

.hamburger::after {
    top: 8px;
}

.nav-toggle.active .hamburger {
    background-color: transparent;
}

.nav-toggle.active .hamburger::before {
    top: 0;
    transform: translateX(-50%) rotate(45deg);
}

.nav-toggle.active .hamburger::after {
    top: 0;
    transform: translateX(-50%) rotate(-45deg);
}

/* ===== Hero Section ===== */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    position: relative;
    padding: 120px 0 80px;
    overflow: hidden;
}

.hero-bg {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: 
        radial-gradient(ellipse at 20% 50%, rgba(220, 38, 38, 0.15) 0%, transparent 50%),
        radial-gradient(ellipse at 80% 80%, rgba(220, 38, 38, 0.1) 0%, transparent 40%),
        linear-gradient(180deg, var(--color-black) 0%, var(--color-dark) 100%);
    z-index: -1;
}

.hero-bg::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image: 
        linear-gradient(rgba(220, 38, 38, 0.03) 1px, transparent 1px),
        linear-gradient(90deg, rgba(220, 38, 38, 0.03) 1px, transparent 1px);
    background-size: 50px 50px;
    opacity: 0.5;
}

.hero-content {
    max-width: 800px;
}

.hero-title {
    font-family: var(--font-display);
    font-size: clamp(3.5rem, 10vw, 8rem);
    font-weight: 400;
    line-height: 0.95;
    letter-spacing: 4px;
    text-transform: uppercase;
    margin-bottom: 32px;
}

.hero-title-line {
    display: block;
    opacity: 0;
    transform: translateY(40px);
    animation: fadeInUp 0.8s ease forwards;
}

.hero-title-line:nth-child(1) {
    animation-delay: 0.2s;
}

.hero-title-line:nth-child(2) {
    animation-delay: 0.4s;
}

.hero-title-line:nth-child(3) {
    animation-delay: 0.6s;
}

.hero-subtitle {
    font-size: 1.125rem;
    font-weight: 300;
    color: var(--color-gray-light);
    max-width: 500px;
    margin-bottom: 40px;
    opacity: 0;
    animation: fadeIn 0.8s ease 0.8s forwards;
}

.hero .btn {
    opacity: 0;
    animation: fadeIn 0.8s ease 1s forwards;
}

.hero-scroll {
    position: absolute;
    bottom: 40px;
    right: 40px;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 12px;
    font-size: 0.75rem;
    font-weight: 500;
    letter-spacing: 2px;
    text-transform: uppercase;
    color: var(--color-gray-light);
}

.scroll-line {
    width: 1px;
    height: 60px;
    background: linear-gradient(to bottom, var(--color-primary), transparent);
    animation: scrollPulse 2s ease-in-out infinite;
}

/* ===== About Section ===== */
.about {
    padding: 120px 0;
    background-color: var(--color-dark);
    position: relative;
}

.about::before {
    content: '';
    position: absolute;
    top: 0;
    right: 0;
    width: 40%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(220, 38, 38, 0.05));
    pointer-events: none;
}

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

.about-text p {
    margin-bottom: 20px;
    color: var(--color-gray-light);
}

.about-lead {
    font-size: 1.25rem;
    font-weight: 400;
    color: var(--color-off-white) !important;
    line-height: 1.7;
}

.about-features {
    display: flex;
    flex-direction: column;
    gap: 32px;
}

.feature {
    display: flex;
    align-items: flex-start;
    gap: 20px;
    padding: 24px;
    background-color: var(--color-dark-secondary);
    border-left: 3px solid var(--color-primary);
    transition: all var(--transition-base);
}

.feature:hover {
    transform: translateX(8px);
    background-color: rgba(220, 38, 38, 0.1);
}

.feature-icon {
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: var(--color-primary);
    color: var(--color-white);
    font-size: 1.25rem;
    flex-shrink: 0;
}

.feature h3 {
    font-family: var(--font-display);
    font-size: 1.5rem;
    letter-spacing: 1px;
    margin-bottom: 8px;
    text-transform: uppercase;
}

.feature p {
    font-size: 0.875rem;
    color: var(--color-gray-light);
}

/* ===== Services Section ===== */
.services {
    padding: 120px 0;
    background-color: var(--color-black);
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}

.service-card {
    position: relative;
    padding: 40px 32px;
    background-color: var(--color-dark);
    border: 1px solid var(--color-dark-secondary);
    cursor: pointer;
    transition: all var(--transition-base);
    overflow: hidden;
}

.service-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 3px;
    background-color: var(--color-primary);
    transform: scaleX(0);
    transform-origin: left;
    transition: transform var(--transition-base);
}

.service-card:hover {
    border-color: var(--color-primary);
    transform: translateY(-8px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.4);
}

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

.service-number {
    font-family: var(--font-display);
    font-size: 3rem;
    color: var(--color-dark-secondary);
    line-height: 1;
    margin-bottom: 20px;
    transition: color var(--transition-base);
}

.service-card:hover .service-number {
    color: var(--color-primary);
}

.service-title {
    font-family: var(--font-display);
    font-size: 1.5rem;
    letter-spacing: 1px;
    text-transform: uppercase;
    margin-bottom: 16px;
}

.service-desc {
    font-size: 0.875rem;
    color: var(--color-gray-light);
    line-height: 1.7;
    margin-bottom: 24px;
}

.service-arrow {
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: var(--color-dark-secondary);
    color: var(--color-off-white);
    transition: all var(--transition-base);
}

.service-card:hover .service-arrow {
    background-color: var(--color-primary);
    transform: translateX(8px);
}

/* ===== Contact Section ===== */
.contact {
    padding: 120px 0;
    background: linear-gradient(135deg, var(--color-dark) 0%, var(--color-black) 100%);
}

.contact-wrapper {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 80px;
    align-items: start;
}

.contact-desc {
    font-size: 1rem;
    color: var(--color-gray-light);
    margin-bottom: 40px;
    line-height: 1.7;
}

.contact-details {
    display: flex;
    flex-direction: column;
    gap: 24px;
}

.contact-item {
    display: flex;
    align-items: flex-start;
    gap: 16px;
}

.contact-icon {
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: var(--color-primary);
    color: var(--color-white);
    font-size: 1.125rem;
    flex-shrink: 0;
}

.contact-label {
    display: block;
    font-size: 0.75rem;
    font-weight: 600;
    letter-spacing: 2px;
    text-transform: uppercase;
    color: var(--color-gray-light);
    margin-bottom: 4px;
}

.contact-text a,
.contact-text address {
    font-style: normal;
    font-size: 1rem;
    color: var(--color-off-white);
    transition: color var(--transition-fast);
}

.contact-text a:hover {
    color: var(--color-primary);
}

.contact-form-wrapper {
    background-color: var(--color-dark-secondary);
    padding: 48px;
}

.contact-form {
    display: flex;
    flex-direction: column;
    gap: 24px;
}

.form-group {
    position: relative;
}

.form-group input,
.form-group textarea,
.form-group select {
    width: 100%;
    padding: 16px 0;
    background: transparent;
    border: none;
    border-bottom: 1px solid var(--color-gray);
    color: var(--color-off-white);
    transition: border-color var(--transition-base);
}

.form-group label {
    position: absolute;
    top: 16px;
    left: 0;
    font-size: 0.875rem;
    color: var(--color-gray-light);
    pointer-events: none;
    transition: all var(--transition-base);
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
    border-color: var(--color-primary);
}

.form-group input:focus + label,
.form-group input:not(:placeholder-shown) + label,
.form-group textarea:focus + label,
.form-group textarea:not(:placeholder-shown) + label,
.form-group select:focus + label,
.form-group select:valid + label {
    top: -8px;
    font-size: 0.75rem;
    color: var(--color-primary);
}

.form-group select {
    cursor: pointer;
    appearance: none;
}

.form-group select option {
    background-color: var(--color-dark);
    color: var(--color-off-white);
}

.form-group textarea {
    resize: vertical;
    min-height: 100px;
}

/* ===== Footer ===== */
.footer {
    padding: 40px 0;
    background-color: var(--color-black);
    border-top: 1px solid var(--color-dark-secondary);
}

.footer-content {
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 20px;
}

.footer-logo {
    font-size: 1.25rem;
}

.footer-logo .logo-pn {
    width: 40px;
    height: 40px;
    font-size: 1rem;
}

.footer-copyright {
    font-size: 0.875rem;
    color: var(--color-gray-light);
}

/* ===== Animations ===== */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(40px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes fadeIn {
    from {
        opacity: 0;
    }
    to {
        opacity: 1;
    }
}

@keyframes scrollPulse {
    0%, 100% {
        opacity: 1;
        transform: scaleY(1);
    }
    50% {
        opacity: 0.5;
        transform: scaleY(0.8);
    }
}

/* ===== Responsive ===== */
@media (max-width: 1024px) {
    .about-content {
        grid-template-columns: 1fr;
        gap: 60px;
    }
    
    .services-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .contact-wrapper {
        grid-template-columns: 1fr;
        gap: 60px;
    }
}

@media (max-width: 768px) {
    .nav {
        position: fixed;
        top: 0;
        right: -100%;
        width: 280px;
        height: 100vh;
        background-color: var(--color-dark);
        padding: 100px 40px 40px;
        transition: right var(--transition-base);
        box-shadow: -10px 0 30px rgba(0, 0, 0, 0.5);
    }
    
    .nav.active {
        right: 0;
    }
    
    .nav-list {
        flex-direction: column;
        align-items: flex-start;
        gap: 24px;
    }
    
    .nav-link {
        font-size: 1.125rem;
    }
    
    .nav-toggle {
        display: block;
        z-index: 1001;
    }
    
    .hero-title {
        font-size: clamp(2.5rem, 12vw, 4rem);
    }
    
    .hero-scroll {
        display: none;
    }
    
    .services-grid {
        grid-template-columns: 1fr;
    }
    
    .contact-form-wrapper {
        padding: 32px 24px;
    }
    
    .footer-content {
        flex-direction: column;
        text-align: center;
    }
}

@media (max-width: 480px) {
    .section-title {
        font-size: 2rem;
    }
    
    .btn {
        padding: 14px 28px;
        font-size: 0.8rem;
    }
    
    .feature {
        flex-direction: column;
    }
}