/* ===================================
   UNIT Services - Stylesheet
   Color Schema:
   - Primary: #E60000 (Main Red)
   - Secondary: #FF6B00 (Energy Orange)
   - Anchor/Accent: #800000 (Deep Maroon)
   - Text: #1A1A1A (Warm Black)
   - Background: #F9F9F7 (Off-White)
   =================================== */

:root {
    --color-primary: #E60000;
    --color-secondary: #FF6B00;
    --color-accent: #800000;
    --color-text: #1A1A1A;
    --color-background: #F9F9F7;
    --color-white: #FFFFFF;
    --color-gray-light: #E5E5E3;
    --color-gray: #888888;

    --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    --transition: all 0.3s ease;
    --shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 25px rgba(0, 0, 0, 0.15);
    --border-radius: 8px;
}

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

html {
    scroll-behavior: smooth;
}

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

.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

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

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

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

/* Buttons */
.btn {
    display: inline-block;
    padding: 14px 32px;
    font-size: 1rem;
    font-weight: 600;
    text-align: center;
    border: none;
    border-radius: var(--border-radius);
    cursor: pointer;
    transition: var(--transition);
}

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

.btn-primary:hover {
    background-color: var(--color-accent);
    color: var(--color-white);
    transform: translateY(-2px);
    box-shadow: var(--shadow);
}

.btn-secondary {
    background-color: var(--color-gray-light);
    color: var(--color-text);
}

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

.btn-small {
    padding: 10px 20px;
    font-size: 0.9rem;
}

/* Navigation */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background-color: var(--color-white);
    box-shadow: var(--shadow);
    padding: 15px 0;
    transition: var(--transition);
}

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

.logo {
    font-size: 1.5rem;
    font-weight: 700;
    text-decoration: none;
}

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

.logo-services {
    color: var(--color-text);
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 30px;
}

.nav-menu a {
    color: var(--color-text);
    font-weight: 500;
    padding: 8px 0;
    position: relative;
}

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

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

/* Navigation Icons */
.nav-icon {
    display: inline-flex;
    align-items: center;
    margin-right: 6px;
    vertical-align: middle;
}

.nav-icon svg {
    transition: var(--transition);
}

/* WhatsApp Icon Hover Effect */
.nav-menu a:hover .whatsapp-icon svg {
    fill: #25D366;
}

.nav-toggle {
    display: none;
    flex-direction: column;
    justify-content: space-between;
    width: 30px;
    height: 21px;
    background: transparent;
    border: none;
    cursor: pointer;
}

.nav-toggle span {
    display: block;
    width: 100%;
    height: 3px;
    background-color: var(--color-text);
    border-radius: 2px;
    transition: var(--transition);
}

/* Hero Section */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
}

.hero-background {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
}

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, rgba(26, 26, 26, 0.85) 0%, rgba(128, 0, 0, 0.7) 100%);
}

.hero-content {
    position: relative;
    z-index: 1;
    text-align: center;
    color: var(--color-white);
    padding: 120px 20px 80px;
    max-width: 800px;
}

.hero-content h1 {
    font-size: 3rem;
    font-weight: 700;
    margin-bottom: 24px;
    line-height: 1.2;
}

.hero-content p {
    font-size: 1.25rem;
    margin-bottom: 32px;
    opacity: 0.95;
    line-height: 1.7;
}

/* Hero Background Phrases */
.hero-phrases {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 0;
    pointer-events: none;
    overflow: hidden;
}

.hero-phrase {
    position: absolute;
    font-size: clamp(1rem, 2.5vw, 1.8rem);
    font-weight: 500;
    color: rgba(255, 255, 255, 0.30);
    text-align: center;
    padding: 10px 20px;
    white-space: normal;
    max-width: 90%;
    word-wrap: break-word;
    opacity: 0;
    transition: opacity 2s ease-in-out;
    text-transform: none;
    letter-spacing: 0.01em;
}

.hero-phrase.visible {
    opacity: 1;
}

/* Hero CTA Buttons */
.hero-cta-buttons {
    display: flex;
    gap: 16px;
    justify-content: center;
    flex-wrap: wrap;
}

.hero-cta-buttons .btn {
    min-width: 180px;
}

/* About Section */
.about {
    padding: 100px 0;
    background-color: var(--color-white);
}

.about-container {
    display: grid;
    grid-template-columns: 1fr 1.5fr;
    gap: 60px;
    align-items: start;
}

.about-image {
    position: sticky;
    top: 100px;
}

.about-image img {
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-lg);
}

.about-content h2 {
    font-size: 2.5rem;
    color: var(--color-text);
    margin-bottom: 20px;
}

.about-content p {
    font-size: 1.1rem;
    color: var(--color-gray);
    line-height: 1.8;
    margin-bottom: 1rem;
}

.about-content p:last-child {
    margin-bottom: 0;
}

.about-subtitle {
    font-size: 1.3rem;
    color: var(--color-primary);
    font-weight: 500;
    margin-bottom: 20px;
}

.about-sections {
    margin-top: 40px;
}

.about-section {
    margin-bottom: 35px;
}

.about-section:last-child {
    margin-bottom: 0;
}

.about-section h3 {
    font-size: 1.4rem;
    color: var(--color-text);
    margin-bottom: 15px;
}

.about-list {
    list-style: none;
    padding: 0;
    margin-top: 20px;
}

.about-list li {
    padding: 12px 0 12px 24px;
    position: relative;
    color: var(--color-gray);
    line-height: 1.6;
}

.about-list li::before {
    content: '';
    position: absolute;
    left: 0;
    top: 20px;
    width: 8px;
    height: 8px;
    background-color: var(--color-primary);
    border-radius: 50%;
}

.about-list li strong {
    color: var(--color-text);
}

.about-cta {
    margin-top: 50px;
    padding: 40px;
    background: linear-gradient(135deg, var(--color-background) 0%, var(--color-white) 100%);
    border-radius: var(--border-radius);
    border-left: 4px solid var(--color-primary);
}

.about-cta h3 {
    font-size: 1.5rem;
    color: var(--color-text);
    margin-bottom: 15px;
}

.about-cta p {
    margin-bottom: 25px;
}

.about-cta .btn {
    display: inline-block;
}

/* Section Headers */
.section-header {
    text-align: center;
    margin-bottom: 60px;
}

.section-header h2 {
    font-size: 2.5rem;
    color: var(--color-text);
    margin-bottom: 15px;
}

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

/* Services Section */
.services {
    padding: 100px 0;
    background-color: var(--color-background);
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 30px;
    max-width: 1000px;
    margin: 0 auto;
}

.service-card {
    background-color: var(--color-white);
    border-radius: var(--border-radius);
    overflow: hidden;
    box-shadow: var(--shadow);
    transition: var(--transition);
}

.service-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-lg);
}

.service-card-image {
    width: 100%;
    height: 200px;
    object-fit: cover;
}

.service-card-content {
    padding: 30px;
}

.service-card-icon {
    font-size: 2.5rem;
    margin-bottom: 15px;
}

.service-badge {
    display: inline-block;
    padding: 6px 14px;
    background-color: var(--color-secondary);
    color: var(--color-white);
    font-size: 0.75rem;
    font-weight: 600;
    border-radius: 20px;
    margin-bottom: 12px;
    letter-spacing: 0.3px;
}

.service-card h3 {
    font-size: 1.4rem;
    color: var(--color-text);
    margin-bottom: 12px;
}

.service-card p {
    color: var(--color-gray);
    line-height: 1.6;
    margin-bottom: 16px;
}

.service-keywords {
    list-style: none;
    padding: 0;
    margin-top: 20px;
}

.service-keywords li {
    padding: 6px 0;
    color: var(--color-text);
    font-size: 0.9rem;
    border-bottom: 1px solid var(--color-gray-light);
}

.service-keywords li:last-child {
    border-bottom: none;
}

.service-keywords li::before {
    content: "✓ ";
    color: var(--color-primary);
    font-weight: bold;
    margin-right: 8px;
}

/* Why Choose Us Section */
.why-choose-us {
    padding: 100px 0;
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-accent) 100%);
    color: var(--color-white);
}

.why-choose-us h2 {
    text-align: center;
    font-size: 2.5rem;
    margin-bottom: 60px;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 40px;
}

.feature-item {
    text-align: center;
    padding: 30px;
}

.feature-icon {
    font-size: 3rem;
    margin-bottom: 20px;
}

.feature-item h3 {
    font-size: 1.4rem;
    margin-bottom: 15px;
}

.feature-item p {
    opacity: 0.9;
    line-height: 1.6;
}

/* Experience Section */
.experience {
    padding: 100px 0;
    background-color: var(--color-white);
}

.experience-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
    margin-top: 40px;
}

.experience-card {
    background-color: var(--color-background);
    border-radius: var(--border-radius);
    padding: 30px;
    box-shadow: var(--shadow);
    transition: var(--transition);
    border-left: 4px solid var(--color-primary);
}

.experience-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
}

.experience-category {
    display: inline-block;
    padding: 4px 12px;
    background-color: var(--color-primary);
    color: var(--color-white);
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    border-radius: 4px;
    margin-bottom: 16px;
    letter-spacing: 0.5px;
}

.experience-card h3 {
    font-size: 1.4rem;
    color: var(--color-text);
    margin-bottom: 12px;
}

.experience-description {
    color: var(--color-gray);
    line-height: 1.6;
    margin-bottom: 20px;
}

.experience-highlights {
    list-style: none;
    padding: 0;
    margin: 20px 0;
}

.experience-highlights li {
    padding: 8px 0;
    color: var(--color-text);
    font-size: 0.9rem;
    position: relative;
    padding-left: 20px;
}

.experience-highlights li::before {
    content: "→";
    color: var(--color-primary);
    font-weight: bold;
    position: absolute;
    left: 0;
}

.experience-technologies {
    margin-top: 20px;
    padding-top: 20px;
    border-top: 1px solid var(--color-gray-light);
    font-size: 0.85rem;
    color: var(--color-gray);
    font-style: italic;
}

/* Contact Section */
.contact {
    padding: 100px 0;
    background-color: var(--color-white);
}

.contact-wrapper {
    display: grid;
    grid-template-columns: 1fr 1.5fr;
    gap: 60px;
    align-items: start;
}

.contact-info {
    background-color: var(--color-background);
    padding: 30px;
    border-radius: var(--border-radius);
}

.contact-info-item {
    margin-bottom: 25px;
}

.contact-info-item:last-child {
    margin-bottom: 0;
}

.contact-info-item h4 {
    font-size: 0.9rem;
    color: var(--color-gray);
    margin-bottom: 5px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.contact-info-item p,
.contact-info-item a {
    font-size: 1.1rem;
    color: var(--color-text);
}

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

.contact-form {
    max-width: 100%;
    margin: 0;
}

.form-group {
    position: relative;
    margin-bottom: 30px;
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 15px 20px;
    font-size: 1rem;
    font-family: var(--font-family);
    border: 2px solid var(--color-gray-light);
    border-radius: var(--border-radius);
    background-color: var(--color-background);
    transition: var(--transition);
}

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

.form-group label {
    position: absolute;
    left: 20px;
    top: 50%;
    transform: translateY(-50%);
    color: var(--color-gray);
    pointer-events: none;
    transition: var(--transition);
    background-color: var(--color-background);
    padding: 0 5px;
}

.form-group textarea ~ label {
    top: 20px;
    transform: none;
}

.form-group input:focus ~ label,
.form-group input:valid ~ label,
.form-group textarea:focus ~ label,
.form-group textarea:valid ~ label {
    top: 0;
    transform: translateY(-50%);
    font-size: 0.85rem;
    color: var(--color-primary);
}

.form-group textarea:focus ~ label,
.form-group textarea:valid ~ label {
    top: -10px;
    transform: none;
}

.contact-form .btn {
    width: 100%;
    padding: 16px;
    font-size: 1.1rem;
}

.form-success {
    text-align: center;
    padding: 40px;
    background-color: var(--color-background);
    border-radius: var(--border-radius);
    grid-column: 1 / -1;
}

.form-success p {
    font-size: 1.2rem;
    color: var(--color-primary);
}

/* Footer */
.footer {
    background-color: var(--color-text);
    color: var(--color-white);
    padding: 60px 0 30px;
}

.footer-grid {
    display: grid;
    grid-template-columns: 1.5fr 1fr 1.3fr 1fr;
    gap: 40px;
    margin-bottom: 40px;
}

.footer-column h4 {
    font-size: 1rem;
    font-weight: 600;
    margin-bottom: 20px;
    color: var(--color-white);
}

.footer-logo {
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 15px;
}

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

.footer-logo .logo-services {
    color: var(--color-white);
}

.footer-tagline {
    opacity: 0.7;
    font-size: 0.95rem;
}

.footer-contact p,
.footer-company p {
    margin-bottom: 8px;
    opacity: 0.8;
    font-size: 0.95rem;
}

.footer-contact a {
    color: var(--color-white);
    opacity: 0.8;
}

.footer-contact a:hover {
    opacity: 1;
    color: var(--color-primary);
}

.footer-legal {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.footer-link {
    color: var(--color-white);
    opacity: 0.8;
    font-size: 0.95rem;
    transition: var(--transition);
}

.footer-link:hover {
    opacity: 1;
    color: var(--color-primary);
}

.footer-bottom {
    padding-top: 30px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    text-align: center;
}

.footer-bottom p {
    opacity: 0.6;
    font-size: 0.9rem;
}

/* Cookie Banner */
.cookie-banner {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    background-color: var(--color-text);
    color: var(--color-white);
    padding: 20px;
    z-index: 9999;
    box-shadow: 0 -4px 20px rgba(0, 0, 0, 0.2);
    transform: translateY(100%);
    transition: transform 0.4s ease;
}

.cookie-banner.show {
    transform: translateY(0);
}

.cookie-content {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 30px;
}

.cookie-content p {
    margin: 0;
    font-size: 0.95rem;
    opacity: 0.9;
    flex: 1;
}

.cookie-buttons {
    display: flex;
    gap: 10px;
    flex-shrink: 0;
}

/* Modal */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: rgba(0, 0, 0, 0.7);
    z-index: 10000;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 20px;
    opacity: 0;
    visibility: hidden;
    transition: var(--transition);
}

.modal-overlay.show {
    opacity: 1;
    visibility: visible;
}

.modal {
    background-color: var(--color-white);
    border-radius: var(--border-radius);
    max-width: 700px;
    width: 100%;
    max-height: 80vh;
    display: flex;
    flex-direction: column;
    transform: scale(0.9);
    transition: transform 0.3s ease;
}

.modal-overlay.show .modal {
    transform: scale(1);
}

.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px 25px;
    border-bottom: 1px solid var(--color-gray-light);
}

.modal-header h3 {
    font-size: 1.3rem;
    color: var(--color-text);
    margin: 0;
}

.modal-close {
    background: none;
    border: none;
    font-size: 2rem;
    color: var(--color-gray);
    cursor: pointer;
    padding: 0;
    line-height: 1;
    transition: var(--transition);
}

.modal-close:hover {
    color: var(--color-primary);
}

.modal-body {
    padding: 25px;
    overflow-y: auto;
    line-height: 1.8;
}

.modal-body h2,
.modal-body h3 {
    color: var(--color-text);
    margin-top: 25px;
    margin-bottom: 10px;
}

.modal-body h2:first-child,
.modal-body h3:first-child {
    margin-top: 0;
}

.modal-body p {
    margin-bottom: 15px;
    color: var(--color-gray);
}

.modal-body ul {
    margin-bottom: 15px;
    padding-left: 25px;
}

.modal-body li {
    margin-bottom: 8px;
    color: var(--color-gray);
}

.modal-body strong {
    color: var(--color-text);
}

/* Mobile Responsive */
@media (max-width: 992px) {
    .about-container {
        grid-template-columns: 1fr;
        gap: 40px;
    }

    .about-image {
        order: -1;
    }

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

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

    .contact-wrapper {
        grid-template-columns: 1fr;
        gap: 40px;
    }

    .contact-info {
        order: 2;
    }

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

@media (max-width: 768px) {
    .nav-toggle {
        display: flex;
    }

    .nav-menu {
        position: fixed;
        top: 70px;
        left: 0;
        right: 0;
        background-color: var(--color-white);
        flex-direction: column;
        align-items: center;
        padding: 30px 0;
        gap: 20px;
        box-shadow: var(--shadow);
        transform: translateY(-150%);
        opacity: 0;
        transition: var(--transition);
    }

    .nav-menu.active {
        transform: translateY(0);
        opacity: 1;
    }

    .hero-content h1 {
        font-size: 2.2rem;
    }

    .hero-content p {
        font-size: 1.1rem;
    }

    .section-header h2,
    .about-content h2,
    .why-choose-us h2 {
        font-size: 2rem;
    }

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

    .features-grid {
        grid-template-columns: 1fr;
        gap: 30px;
    }

    .experience-grid {
        grid-template-columns: 1fr;
        gap: 20px;
    }

    .footer-grid {
        grid-template-columns: 1fr;
        gap: 30px;
        text-align: center;
    }

    .footer-legal {
        align-items: center;
    }

    .cookie-content {
        flex-direction: column;
        text-align: center;
    }

    .cookie-buttons {
        width: 100%;
        justify-content: center;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 15px;
    }

    .hero-content {
        padding: 100px 15px 60px;
    }

    .hero-content h1 {
        font-size: 1.8rem;
    }

    .about,
    .services,
    .why-choose-us,
    .experience,
    .contact {
        padding: 60px 0;
    }

    .btn {
        padding: 12px 24px;
    }

    .cookie-buttons {
        flex-direction: column;
    }

    .cookie-buttons .btn {
        width: 100%;
    }
}

/* Nav Toggle Animation */
.nav-toggle.active span:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
}

.nav-toggle.active span:nth-child(2) {
    opacity: 0;
}

.nav-toggle.active span:nth-child(3) {
    transform: rotate(-45deg) translate(7px, -6px);
}

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

.fade-in-up {
    animation: fadeInUp 0.6s ease forwards;
}