/* SolidStructure Theme - Industrial/Construction/Heavy */
:root {
    --primary: #f59e0b;
    /* Safety Amber */
    --primary-dark: #d97706;
    --dark: #1c1917;
    /* Stone 900 */
    --darker: #0c0a09;
    --grey: #44403c;
    /* Stone 700 */
    --light: #f5f5f4;
    /* Stone 100 */
    --white: #ffffff;

    --font-heading: 'Oswald', sans-serif;
    --font-body: 'Roboto', sans-serif;

    --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-body);
    background-color: var(--dark);
    color: var(--light);
    line-height: 1.6;
}

h1,
h2,
h3 {
    font-family: var(--font-heading);
    text-transform: uppercase;
    letter-spacing: 1px;
}

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

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

.section-dark {
    background: var(--darker);
    padding: 80px 0;
}

.section-light {
    background: var(--light);
    color: var(--dark);
    padding: 80px 0;
}

.section-accent {
    background: var(--primary);
    color: var(--darker);
    padding: 80px 0;
}

/* Buttons */
.btn {
    display: inline-block;
    padding: 15px 35px;
    font-family: var(--font-heading);
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 1px;
    border: 2px solid transparent;
    transition: var(--transition);
    text-decoration: none;
    cursor: pointer;
}

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

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

.btn-outline {
    border-color: var(--white);
    color: var(--white);
}

.btn-outline:hover {
    background: var(--white);
    color: var(--darker);
}

.btn-nav {
    border: 2px solid var(--primary);
    color: var(--primary);
    padding: 8px 20px;
    font-size: 0.9rem;
}

.btn-nav:hover {
    background: var(--primary);
    color: var(--darker);
}

.btn-small {
    background: var(--dark);
    color: var(--white);
    border: none;
    padding: 8px 20px;
    cursor: pointer;
    font-weight: 700;
}

/* Navbar */
.navbar {
    position: fixed;
    top: 0;
    width: 100%;
    height: 80px;
    background: rgba(28, 25, 23, 0.95);
    border-bottom: 2px solid var(--grey);
    z-index: 1000;
    display: flex;
    align-items: center;
}

.nav-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    width: 100%;
}

.logo {
    font-family: var(--font-heading);
    font-size: 1.8rem;
    font-weight: 700;
    color: var(--white);
    text-decoration: none;
}

.nav-links {
    display: flex;
    gap: 30px;
    align-items: center;
}

.nav-links a {
    color: var(--light);
    text-decoration: none;
    font-weight: 500;
    font-size: 0.95rem;
    text-transform: uppercase;
}

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

/* Hero */
.hero {
    height: 100vh;
    background-image: url('https://images.unsplash.com/photo-1541888946425-d81bb19240f5?auto=format&fit=crop&q=80&w=2000');
    /* Construction Site */
    background-size: cover;
    background-position: center;
    position: relative;
    display: flex;
    align-items: center;
}

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.7);
}

.hero-content {
    position: relative;
    z-index: 2;
    max-width: 800px;
}

.hero h1 {
    font-size: 4rem;
    line-height: 1.1;
    margin-bottom: 20px;
}

.hero p {
    font-size: 1.25rem;
    color: #d6d3d1;
    margin-bottom: 40px;
    max-width: 600px;
}

.hero-btns {
    display: flex;
    gap: 20px;
}

/* Ticker */
.ticker-wrap {
    position: absolute;
    bottom: 0;
    width: 100%;
    height: 50px;
    background: var(--primary);
    overflow: hidden;
    display: flex;
    align-items: center;
}

.ticker {
    display: flex;
    width: 100%;
    animation: ticker 20s linear infinite;
    white-space: nowrap;
}

.ticker-item {
    margin-right: 50px;
    font-weight: 700;
    color: var(--darker);
    display: flex;
    align-items: center;
    gap: 10px;
    font-family: var(--font-heading);
    text-transform: uppercase;
}

@keyframes ticker {
    0% {
        transform: translateX(100%);
    }

    100% {
        transform: translateX(-100%);
    }
}

/* Projects Grid */
.projects {
    padding-top: 100px;
}

.section-header {
    margin-bottom: 50px;
    display: flex;
    justify-content: space-between;
    align-items: flex-end;
}

.section-header h2 {
    font-size: 3rem;
    color: var(--white);
}

.filters {
    display: flex;
    gap: 10px;
}

.filter-btn {
    background: transparent;
    border: 1px solid var(--grey);
    color: var(--light);
    padding: 8px 16px;
    cursor: pointer;
    font-family: var(--font-heading);
    text-transform: uppercase;
}

.filter-btn.active,
.filter-btn:hover {
    background: var(--primary);
    color: var(--darker);
    border-color: var(--primary);
}

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

.project-card {
    position: relative;
    background: var(--grey);
    cursor: pointer;
    overflow: hidden;
}

.project-card:hover .project-img {
    transform: scale(1.1);
}

.project-card:hover .overlay {
    opacity: 1;
}

.project-img {
    height: 300px;
    background-size: cover;
    background-position: center;
    transition: var(--transition);
    position: relative;
}

.overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(245, 158, 11, 0.8);
    display: flex;
    justify-content: center;
    align-items: center;
    opacity: 0;
    transition: var(--transition);
}

.overlay i {
    font-size: 2rem;
    color: var(--darker);
}

.project-info {
    padding: 20px;
    position: relative;
    z-index: 2;
    background: var(--darker);
    border-top: 2px solid var(--primary);
}

.project-info h3 {
    font-size: 1.4rem;
    margin-bottom: 5px;
}

/* Timeline */
.timeline {
    position: relative;
    max-width: 800px;
    margin: 0 auto;
    border-left: 2px solid var(--dark);
    padding-left: 40px;
}

.timeline-item {
    position: relative;
    margin-bottom: 50px;
}

.year {
    position: absolute;
    left: -66px;
    top: 0;
    width: 50px;
    height: 50px;
    background: var(--dark);
    color: var(--primary);
    display: flex;
    justify-content: center;
    align-items: center;
    font-weight: 700;
    font-family: var(--font-heading);
    font-size: 1.2rem;
}

.content h3 {
    font-size: 1.5rem;
    margin-bottom: 10px;
}

/* Calculator */
.calc-wrapper {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 50px;
    align-items: center;
}

.calc-text h2 {
    font-size: 3rem;
    margin-bottom: 20px;
}

.check-list li {
    margin: 10px 0;
    font-weight: 700;
    display: flex;
    align-items: center;
    gap: 10px;
}

.calc-form-box {
    background: var(--white);
    padding: 40px;
    color: var(--dark);
    box-shadow: 20px 20px 0px rgba(0, 0, 0, 0.2);
}

.range-val {
    text-align: right;
    font-weight: 700;
    color: var(--primary-dark);
    font-size: 1.2rem;
    margin-top: 5px;
}

input[type=range] {
    width: 100%;
}

.radio-group {
    display: flex;
    flex-direction: column;
    gap: 10px;
    margin-top: 10px;
}

.radio-group label {
    display: flex;
    align-items: center;
    gap: 10px;
    font-weight: 500;
    cursor: pointer;
}

.result-box {
    margin-top: 30px;
    padding-top: 20px;
    border-top: 2px solid #e5e7eb;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.result-box .price {
    font-size: 2rem;
    font-weight: 700;
    color: var(--darker);
}

/* Footer */
.footer {
    border-top: 10px solid var(--grey);
    padding: 50px 0;
    background: var(--darker);
}

.footer-top {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: 40px;
}

.footer-logo {
    font-family: var(--font-heading);
    font-size: 1.5rem;
    color: var(--white);
    text-decoration: none;
    font-weight: 700;
}

.footer-contact {
    text-align: right;
    color: var(--light);
    opacity: 0.7;
}

.footer-contact a {
    color: var(--primary);
    text-decoration: none;
}

.footer-bottom {
    border-top: 1px solid var(--grey);
    padding-top: 20px;
    display: flex;
    justify-content: space-between;
    color: var(--grey);
}

.socials a {
    color: var(--grey);
    font-size: 1.2rem;
    margin-left: 15px;
}

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

/* Cookie Banner */
.cookie-banner {
    position: fixed;
    bottom: 0;
    left: 0;
    width: 100%;
    background: var(--primary);
    color: var(--darker);
    padding: 15px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    transform: translateY(100%);
    transition: var(--transition);
    z-index: 2000;
}

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

.cookie-msg {
    font-weight: 700;
    display: flex;
    gap: 10px;
    align-items: center;
}

/* Mobile */
@media (max-width: 992px) {
    .nav-links {
        display: none;
    }

    .hamburger {
        display: block;
        color: var(--white);
        font-size: 1.5rem;
    }

    .hero h1 {
        font-size: 2.5rem;
    }

    .calc-wrapper {
        grid-template-columns: 1fr;
    }

    .footer-top,
    .footer-bottom {
        flex-direction: column;
        text-align: center;
        align-items: center;
        gap: 20px;
    }

    .footer-contact {
        text-align: center;
    }
}