/* =============================================
   ELEVATE ENGINEERING - MAIN STYLESHEET
   ============================================= */

/* Import Google Fonts */
@import url('https://fonts.googleapis.com/css2?family=Montserrat:wght@600;800&family=Inter:wght@400;500;600;700&display=swap');

/* ============= CSS Variables ============= */
:root {
    --color-black: #121212;
    --color-graphite: #1E1E1E;
    --color-grey: #4A4A4A;
    --color-accent: #A67C52;
    --color-white: #FFFFFF;
    --color-light-bg: #F7F7F7;
    
    --font-heading: 'Montserrat', sans-serif;
    --font-body: 'Inter', sans-serif;
    
    --transition: all 0.3s ease;
}

/* ============= Global Styles ============= */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

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

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

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

/* ============= Top Bar ============= */
.top-bar {
    background-color: var(--color-black);
    color: var(--color-white);
    padding: 12px 0;
    font-size: 14px;
}

.top-bar-content {
    display: flex;
    justify-content: center;
    gap: 40px;
    flex-wrap: wrap;
}

@media (max-width: 768px) {
    .top-bar-content {
        gap: 20px;
        font-size: 12px;
    }
}

/* ============= Header & Navigation ============= */
header {
    background-color: var(--color-white);
    padding: 20px 0;
    border-bottom: 1px solid #e0e0e0;
    position: sticky;
    top: 0;
    z-index: 100;
}

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

.logo {
    display: flex;
    flex-direction: column;
    line-height: 1;
}

.logo .logo-title {
    font-family: var(--font-heading);
    font-size: 24px;
    font-weight: 800;
    color: var(--color-black);
    letter-spacing: 2px;
}

.logo p {
    font-size: 12px;
    color: var(--color-accent);
    font-weight: 600;
    letter-spacing: 1px;
}

.nav {
    display: flex;
    gap: 30px;
}

.nav a {
    font-family: var(--font-heading);
    font-size: 13px;
    font-weight: 600;
    color: var(--color-graphite);
    transition: var(--transition);
}

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

.mobile-menu-btn {
    display: none;
    background: none;
    border: none;
    font-size: 24px;
    cursor: pointer;
    color: var(--color-black);
}

.mobile-menu {
    display: none;
    position: absolute;
    top: 60px;
    left: 0;
    right: 0;
    background-color: var(--color-white);
    flex-direction: column;
    padding: 20px;
    gap: 15px;
    border-bottom: 1px solid #e0e0e0;
}

.mobile-menu a {
    font-family: var(--font-heading);
    font-weight: 600;
    color: var(--color-graphite);
}

@media (max-width: 768px) {
    .nav {
        display: none;
    }

    .mobile-menu-btn {
        display: block;
    }

    .mobile-menu.active {
        display: flex;
    }
}

/* ============= Hero Section ============= */
.hero {
    background: linear-gradient(135deg, var(--color-graphite) 0%, var(--color-black) 100%);
    color: var(--color-white);
    padding: 100px 0;
    text-align: center;
    min-height: 600px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.hero-content {
    max-width: 900px;
}

.hero h2 {
    font-family: var(--font-heading);
    font-size: 48px;
    font-weight: 800;
    margin-bottom: 15px;
    letter-spacing: 1px;
}

.hero-subtitle {
    font-size: 24px;
    color: var(--color-accent);
    font-weight: 600;
    margin-bottom: 30px;
}

.hero-description {
    font-size: 16px;
    margin-bottom: 20px;
    line-height: 1.8;
}

.hero-experience {
    font-size: 16px;
    margin-bottom: 30px;
    line-height: 1.8;
    color: #e0e0e0;
}

.hero-features {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 20px;
    margin: 40px 0;
    background-color: rgba(255, 255, 255, 0.05);
    padding: 30px;
    border-radius: 8px;
}

.feature {
    font-size: 16px;
    font-weight: 500;
}

.hero-cta {
    display: flex;
    gap: 20px;
    justify-content: center;
    flex-wrap: wrap;
    margin-top: 40px;
}

@media (max-width: 768px) {
    .hero {
        padding: 60px 0;
        min-height: auto;
    }

    .hero h2 {
        font-size: 32px;
    }

    .hero-subtitle {
        font-size: 18px;
    }

    .hero-cta {
        flex-direction: column;
    }
}

/* ============= Buttons ============= */
.btn {
    padding: 14px 32px;
    border: none;
    border-radius: 4px;
    font-family: var(--font-heading);
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    letter-spacing: 1px;
    text-transform: uppercase;
}

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

.btn-primary:hover {
    background-color: #8f6a47;
    transform: translateY(-2px);
    box-shadow: 0 8px 16px rgba(166, 124, 82, 0.3);
}

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

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

/* ============= Trust Bar ============= */
.trust-bar {
    background-color: var(--color-light-bg);
    padding: 40px 0;
    text-align: center;
}

.trust-bar h3 {
    font-family: var(--font-heading);
    font-size: 20px;
    font-weight: 700;
    margin-bottom: 15px;
    color: var(--color-black);
}

.trust-bar p {
    font-size: 15px;
    color: var(--color-grey);
    line-height: 1.8;
}

/* ============= Capabilities Section ============= */
.capabilities {
    padding: 80px 0;
}

.capabilities h2 {
    font-family: var(--font-heading);
    font-size: 42px;
    font-weight: 800;
    margin-bottom: 20px;
    color: var(--color-black);
    text-align: center;
}

.section-intro {
    text-align: center;
    font-size: 16px;
    color: var(--color-grey);
    margin-bottom: 50px;
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
    line-height: 1.8;
}

.capability-highlight {
    background-color: var(--color-light-bg);
    padding: 40px;
    border-radius: 8px;
    margin-bottom: 60px;
    border-left: 5px solid var(--color-accent);
}

.capability-highlight h3 {
    font-family: var(--font-heading);
    font-size: 24px;
    font-weight: 700;
    margin-bottom: 15px;
    color: var(--color-black);
}

.capability-highlight > p {
    color: var(--color-grey);
    margin-bottom: 25px;
}

.benefits h4 {
    font-family: var(--font-heading);
    font-size: 16px;
    font-weight: 700;
    margin-bottom: 15px;
    color: var(--color-black);
}

.benefits ul {
    list-style: none;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 12px;
}

.benefits li {
    color: var(--color-grey);
}

.services-title {
    font-family: var(--font-heading);
    font-size: 28px;
    font-weight: 700;
    margin: 60px 0 30px 0;
    color: var(--color-black);
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 25px;
}

.service-card {
    background-color: var(--color-white);
    border: 1px solid #e0e0e0;
    padding: 30px;
    border-radius: 8px;
    transition: var(--transition);
}

.service-card:hover {
    box-shadow: 0 12px 24px rgba(0, 0, 0, 0.1);
    border-color: var(--color-accent);
    transform: translateY(-4px);
}

.service-card h4 {
    font-family: var(--font-heading);
    font-size: 18px;
    font-weight: 700;
    margin-bottom: 12px;
    color: var(--color-black);
}

.service-card p {
    color: var(--color-grey);
    font-size: 14px;
    line-height: 1.7;
}

/* ============= How It Works Section ============= */
.how-it-works {
    background-color: var(--color-light-bg);
    padding: 80px 0;
    text-align: center;
}

.how-it-works h2 {
    font-family: var(--font-heading);
    font-size: 42px;
    font-weight: 800;
    margin-bottom: 50px;
    color: var(--color-black);
}

.process-steps {
    display: flex;
    align-items: center;
    justify-content: center;
    flex-wrap: wrap;
    gap: 20px;
    margin-bottom: 50px;
}

.step {
    background-color: var(--color-white);
    padding: 30px;
    border-radius: 8px;
    min-width: 200px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
}

.step-number {
    font-family: var(--font-heading);
    font-size: 36px;
    font-weight: 800;
    color: var(--color-accent);
    margin-bottom: 10px;
}

.step h3 {
    font-family: var(--font-heading);
    font-size: 18px;
    font-weight: 700;
    margin-bottom: 10px;
    color: var(--color-black);
}

.step p {
    color: var(--color-grey);
    font-size: 14px;
}

.step-arrow {
    font-size: 32px;
    color: var(--color-accent);
}

@media (max-width: 768px) {
    .step-arrow {
        display: none;
    }

    .process-steps {
        flex-direction: column;
    }
}

/* ============= Portfolio Section ============= */
.portfolio {
    padding: 80px 0;
}

.portfolio h2 {
    font-family: var(--font-heading);
    font-size: 42px;
    font-weight: 800;
    margin-bottom: 20px;
    color: var(--color-black);
    text-align: center;
}

.portfolio-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
    margin-bottom: 50px;
}

.portfolio-item {
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
    transition: var(--transition);
    background-color: var(--color-light-bg);
}

.portfolio-item:hover {
    transform: translateY(-8px);
    box-shadow: 0 12px 24px rgba(0, 0, 0, 0.15);
}

.portfolio-item img {
    width: 100%;
    height: 250px;
    object-fit: cover;
    background-color: #ddd;
}

.portfolio-item h3 {
    font-family: var(--font-heading);
    font-size: 18px;
    font-weight: 700;
    padding: 20px 20px 10px;
    color: var(--color-black);
}

.portfolio-item p {
    color: var(--color-grey);
    font-size: 14px;
    padding: 0 20px 20px;
}

.portfolio .btn {
    display: block;
    margin: 0 auto;
}

/* ============= Why Choose Section ============= */
.why-choose {
    background-color: var(--color-light-bg);
    padding: 80px 0;
}

.why-choose h2 {
    font-family: var(--font-heading);
    font-size: 42px;
    font-weight: 800;
    text-align: center;
    margin-bottom: 10px;
    color: var(--color-black);
}

.section-subtitle {
    text-align: center;
    font-size: 18px;
    color: var(--color-grey);
    margin-bottom: 50px;
    font-weight: 500;
}

.reasons-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
}

.reason-card {
    background-color: var(--color-white);
    padding: 30px;
    border-radius: 8px;
    transition: var(--transition);
    border-top: 3px solid var(--color-accent);
}

.reason-card:hover {
    box-shadow: 0 8px 16px rgba(0, 0, 0, 0.1);
}

.reason-card h3 {
    font-family: var(--font-heading);
    font-size: 18px;
    font-weight: 700;
    margin-bottom: 12px;
    color: var(--color-black);
}

.reason-card p {
    color: var(--color-grey);
    font-size: 14px;
    line-height: 1.7;
}

/* ============= Materials Section ============= */
.materials {
    padding: 80px 0;
}

.materials h2 {
    font-family: var(--font-heading);
    font-size: 42px;
    font-weight: 800;
    text-align: center;
    margin-bottom: 20px;
    color: var(--color-black);
}

.materials-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
    margin-bottom: 50px;
}

.material-category {
    background-color: var(--color-light-bg);
    padding: 30px;
    border-radius: 8px;
}

.material-category h3 {
    font-family: var(--font-heading);
    font-size: 16px;
    font-weight: 700;
    margin-bottom: 15px;
    color: var(--color-black);
    border-bottom: 2px solid var(--color-accent);
    padding-bottom: 10px;
}

.material-category ul {
    list-style: none;
}

.material-category li {
    color: var(--color-grey);
    font-size: 13px;
    margin-bottom: 8px;
    padding-left: 10px;
}

.material-cta {
    text-align: center;
    background-color: var(--color-white);
    border: 2px solid var(--color-accent);
    padding: 40px;
    border-radius: 8px;
}

.material-cta p {
    font-size: 16px;
    color: var(--color-graphite);
    margin-bottom: 20px;
    font-weight: 500;
}

/* ============= Industries Section ============= */
.industries {
    background-color: var(--color-light-bg);
    padding: 80px 0;
}

.industries h2 {
    font-family: var(--font-heading);
    font-size: 42px;
    font-weight: 800;
    text-align: center;
    margin-bottom: 10px;
    color: var(--color-black);
}

.industries-list {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 20px;
    margin-top: 40px;
}

.industry-item {
    background-color: var(--color-white);
    padding: 20px;
    border-radius: 6px;
    text-align: center;
    color: var(--color-graphite);
    font-weight: 500;
    border-left: 4px solid var(--color-accent);
    transition: var(--transition);
}

.industry-item:hover {
    background-color: #fafafa;
    transform: translateX(4px);
}

/* ============= Testimonials Section ============= */
.testimonials {
    padding: 80px 0;
}

.testimonials h2 {
    font-family: var(--font-heading);
    font-size: 42px;
    font-weight: 800;
    text-align: center;
    margin-bottom: 50px;
    color: var(--color-black);
}

.testimonials-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
}

.testimonial {
    background-color: var(--color-light-bg);
    padding: 30px;
    border-radius: 8px;
    text-align: center;
    transition: var(--transition);
    border-top: 4px solid var(--color-accent);
}

.testimonial:hover {
    box-shadow: 0 8px 16px rgba(0, 0, 0, 0.1);
}

.stars {
    color: var(--color-accent);
    font-size: 16px;
    margin-bottom: 15px;
}

.testimonial p {
    color: var(--color-grey);
    font-size: 14px;
    line-height: 1.8;
    margin-bottom: 15px;
    font-style: italic;
}

.testimonial-author {
    font-weight: 600;
    color: var(--color-black);
    font-style: normal;
}

/* ============= About Section ============= */
.about {
    background-color: var(--color-light-bg);
    padding: 80px 0;
}

.about h2 {
    font-family: var(--font-heading);
    font-size: 42px;
    font-weight: 800;
    margin-bottom: 40px;
    color: var(--color-black);
    text-align: center;
}

.about-content {
    max-width: 900px;
    margin: 0 auto;
}

.about-text p {
    font-size: 16px;
    color: var(--color-grey);
    line-height: 1.9;
    margin-bottom: 20px;
}

.about-text h3 {
    font-family: var(--font-heading);
    font-size: 20px;
    font-weight: 700;
    margin-top: 30px;
    margin-bottom: 15px;
    color: var(--color-black);
}

/* ============= FAQ Section ============= */
.faq {
    padding: 80px 0;
}

.faq h2 {
    font-family: var(--font-heading);
    font-size: 42px;
    font-weight: 800;
    text-align: center;
    margin-bottom: 50px;
    color: var(--color-black);
}

.faq-items {
    max-width: 800px;
    margin: 0 auto;
}

.faq-item {
    border-bottom: 1px solid #e0e0e0;
    margin-bottom: 0;
}

.faq-question {
    padding: 25px;
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
    transition: var(--transition);
}

.faq-question:hover {
    background-color: var(--color-light-bg);
}

.faq-question h3 {
    font-family: var(--font-heading);
    font-size: 16px;
    font-weight: 600;
    color: var(--color-black);
    text-align: left;
}

.faq-toggle {
    font-size: 24px;
    color: var(--color-accent);
    transition: var(--transition);
}

.faq-question.active .faq-toggle {
    transform: rotate(45deg);
}

.faq-answer {
    padding: 0 25px 20px;
    max-height: 0;
    overflow: hidden;
    transition: var(--transition);
}

.faq-answer.active {
    padding: 0 25px 20px;
    max-height: 500px;
}

.faq-answer p {
    color: var(--color-grey);
    font-size: 14px;
    line-height: 1.8;
}

/* ============= Contact Section ============= */
.contact {
    background-color: var(--color-light-bg);
    padding: 80px 0;
}

.contact h2 {
    font-family: var(--font-heading);
    font-size: 42px;
    font-weight: 800;
    text-align: center;
    margin-bottom: 15px;
    color: var(--color-black);
}

.quote-form {
    max-width: 700px;
    margin: 40px auto 0;
    background-color: var(--color-white);
    padding: 40px;
    border-radius: 8px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
}

.form-row {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
    margin-bottom: 20px;
}

.form-group {
    display: flex;
    flex-direction: column;
}

.form-group label {
    font-family: var(--font-heading);
    font-size: 13px;
    font-weight: 600;
    color: var(--color-black);
    margin-bottom: 8px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.form-group input,
.form-group textarea {
    padding: 12px 15px;
    border: 1px solid #ddd;
    border-radius: 4px;
    font-family: var(--font-body);
    font-size: 14px;
    color: var(--color-graphite);
    transition: var(--transition);
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--color-accent);
    box-shadow: 0 0 0 3px rgba(166, 124, 82, 0.1);
}

.form-group textarea {
    resize: vertical;
    min-height: 120px;
}

.form-checkbox {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 25px;
    font-size: 13px;
    color: var(--color-grey);
}

.form-checkbox input {
    width: 18px;
    height: 18px;
    cursor: pointer;
}

.quote-form .btn {
    width: 100%;
}

@media (max-width: 768px) {
    .form-row {
        grid-template-columns: 1fr;
    }

    .quote-form {
        padding: 25px;
    }
}

/* ============= Final CTA Section ============= */
.final-cta {
    padding: 80px 0;
    background: linear-gradient(135deg, var(--color-graphite) 0%, var(--color-black) 100%);
    color: var(--color-white);
    text-align: center;
}

.final-cta h2 {
    font-family: var(--font-heading);
    font-size: 42px;
    font-weight: 800;
    margin-bottom: 15px;
    letter-spacing: 1px;
}

.final-cta > p {
    font-size: 16px;
    margin-bottom: 30px;
    line-height: 1.8;
}

.final-cta-buttons {
    display: flex;
    gap: 20px;
    justify-content: center;
    flex-wrap: wrap;
    margin-bottom: 30px;
}

.final-cta-benefits {
    font-size: 14px;
    letter-spacing: 1px;
    color: #c0c0c0;
}

/* ============= Footer ============= */
footer {
    background-color: var(--color-black);
    color: var(--color-white);
    padding: 60px 0 20px;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 40px;
    margin-bottom: 40px;
}

.footer-section h3,
.footer-section h4 {
    font-family: var(--font-heading);
    font-weight: 700;
    margin-bottom: 15px;
    color: var(--color-white);
}

.footer-section h3 {
    font-size: 18px;
}

.footer-section h4 {
    font-size: 14px;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.footer-section p {
    font-size: 14px;
    margin-bottom: 10px;
    color: #b0b0b0;
}

.footer-section ul {
    list-style: none;
}

.footer-section ul li {
    font-size: 14px;
    margin-bottom: 8px;
}

.footer-section a {
    color: #b0b0b0;
}

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

.footer-bottom {
    border-top: 1px solid #333;
    padding-top: 20px;
    text-align: center;
    font-size: 13px;
    color: #888;
}

/* ============= Sticky Quote Button (Mobile) ============= */
.sticky-quote-btn {
    display: none;
    position: fixed;
    bottom: 20px;
    right: 20px;
    z-index: 99;
    padding: 14px 28px;
    background-color: var(--color-accent);
    color: var(--color-white);
    border: none;
    border-radius: 4px;
    font-family: var(--font-heading);
    font-size: 12px;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    box-shadow: 0 4px 12px rgba(166, 124, 82, 0.3);
}

.sticky-quote-btn:hover {
    background-color: #8f6a47;
    transform: translateY(-2px);
}

@media (max-width: 768px) {
    .sticky-quote-btn {
        display: block;
    }
}

/* ============= Responsive Design ============= */
@media (max-width: 768px) {
    .hero h2 {
        font-size: 28px;
    }

    .section-intro {
        font-size: 14px;
    }

    .capabilities h2,
    .portfolio h2,
    .why-choose h2,
    .materials h2,
    .industries h2,
    .testimonials h2,
    .about h2,
    .faq h2,
    .contact h2,
    .final-cta h2 {
        font-size: 28px;
    }

    .services-grid,
    .reasons-grid,
    .portfolio-grid,
    .materials-grid,
    .industries-list,
    .testimonials-grid {
        grid-template-columns: 1fr;
    }

    .hero-cta {
        flex-direction: column;
    }

    .hero-features {
        grid-template-columns: 1fr;
    }
}

/* ============= Animations ============= */
@keyframes slideDown {
    from {
        opacity: 0;
        transform: translateY(-20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes slideUp {
    from {
        opacity: 1;
        transform: translateY(0);
    }
    to {
        opacity: 0;
        transform: translateY(-20px);
    }
}

/* ============= Form Messages ============= */
.form-message {
    margin-bottom: 20px;
    padding: 15px 20px;
    border-radius: 4px;
    font-size: 14px;
    font-weight: 500;
    animation: slideDown 0.3s ease;
}

.form-message-success {
    background-color: #d4edda;
    color: #155724;
    border: 1px solid #c3e6cb;
}

.form-message-error {
    background-color: #f8d7da;
    color: #721c24;
    border: 1px solid #f5c6cb;
}

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

    .hero {
        padding: 40px 0;
    }

    .hero h2 {
        font-size: 22px;
    }

    .hero-subtitle {
        font-size: 16px;
    }

    .hero-cta {
        gap: 10px;
    }

    .btn {
        padding: 12px 24px;
        font-size: 12px;
    }

    .capabilities h2,
    .portfolio h2,
    .why-choose h2,
    .materials h2,
    .industries h2,
    .testimonials h2,
    .about h2,
    .faq h2,
    .contact h2,
    .final-cta h2 {
        font-size: 22px;
        margin-bottom: 15px;
    }

    .section-intro {
        font-size: 13px;
    }

    .nav {
        gap: 15px;
    }

    .nav a {
        font-size: 11px;
    }
}