/* ========================================
   POSEIDON CONCRETE & MASONRY - MAIN STYLES
   Modern, Industrial-Refined Aesthetic
   ======================================== */

/* CSS VARIABLES - Design System */
:root {
    /* Colors - Industrial + Earth Tones */
    --navy-deep: #1a2332;
    --slate-blue: #2d3e50;
    --slate-light: #4a5a6a;
    --copper-accent: #d4752e;
    --earth-warm: #8b6f47;
    --white: #ffffff;
    --off-white: #f8f9fa;
    --gray-light: #e8eaed;
    --gray-mid: #c4c7cc;
    
    /* Typography */
    --font-display: 'Bebas Neue', sans-serif;
    --font-body: 'Outfit', sans-serif;
    
    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 2rem;
    --spacing-lg: 4rem;
    --spacing-xl: 6rem;
    
    /* Transitions */
    --transition-fast: 0.2s ease;
    --transition-medium: 0.4s ease;
    
    /* Shadows */
    --shadow-sm: 0 2px 8px rgba(0,0,0,0.08);
    --shadow-md: 0 4px 16px rgba(0,0,0,0.12);
    --shadow-lg: 0 8px 32px rgba(0,0,0,0.16);
}

/* RESET & BASE STYLES */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

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

body {
    font-family: var(--font-body);
    color: var(--slate-blue);
    background-color: var(--white);
    line-height: 1.7;
    overflow-x: hidden;
}

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

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

/* TYPOGRAPHY */
h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-display);
    font-weight: 700;
    line-height: 1.2;
    color: var(--navy-deep);
    letter-spacing: 0.02em;
}

h1 {
    font-size: clamp(2.5rem, 6vw, 5rem);
    margin-bottom: var(--spacing-md);
}

h2 {
    font-size: clamp(2rem, 4vw, 3.5rem);
    margin-bottom: var(--spacing-md);
}

h3 {
    font-size: clamp(1.5rem, 3vw, 2.5rem);
    margin-bottom: var(--spacing-sm);
}

p {
    margin-bottom: var(--spacing-sm);
    font-size: 1.05rem;
}

/* CONTAINER & LAYOUT */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

.container-wide {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

section {
    padding: var(--spacing-xl) 0;
}

/* HEADER & NAVIGATION */
.header {
    background: var(--navy-deep);
    color: var(--white);
    position: sticky;
    top: 0;
    z-index: 1000;
    box-shadow: var(--shadow-md);
}

.top-bar {
    background: var(--slate-blue);
    padding: var(--spacing-xs) 0;
    font-size: 0.9rem;
}

.top-bar .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: var(--spacing-sm);
}

.contact-info {
    display: flex;
    gap: var(--spacing-md);
    flex-wrap: wrap;
}

.contact-info a {
    display: flex;
    align-items: center;
    gap: 0.3rem;
}

.contact-info a:hover {
    color: var(--copper-accent);
}

.nav-wrapper {
    padding: var(--spacing-sm) 0;
}

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

.logo {
    font-family: var(--font-display);
    font-size: 2rem;
    color: var(--white);
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.logo span {
    color: var(--copper-accent);
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: var(--spacing-md);
    align-items: center;
}

.nav-menu a {
    color: var(--white);
    font-weight: 500;
    padding: 0.5rem 1rem;
    border-radius: 4px;
    transition: var(--transition-fast);
}

.nav-menu a:hover {
    background: var(--slate-blue);
    color: var(--copper-accent);
}

.nav-menu .cta-btn {
    background: var(--copper-accent);
    color: var(--white);
    padding: 0.7rem 1.5rem;
    border-radius: 6px;
    font-weight: 600;
}

.nav-menu .cta-btn:hover {
    background: var(--earth-warm);
    transform: translateY(-2px);
}

/* Mobile Menu Toggle */
.menu-toggle {
    display: none;
    background: none;
    border: none;
    color: var(--white);
    font-size: 1.5rem;
    cursor: pointer;
}

/* Dropdown Navigation */
.dropdown {
    position: relative;
}

.dropdown-content {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    background: var(--navy-deep);
    min-width: 220px;
    box-shadow: var(--shadow-lg);
    border-radius: 4px;
    margin-top: 0.5rem;
    z-index: 100;
}

.dropdown:hover .dropdown-content {
    display: block;
}

.dropdown-content a {
    display: block;
    padding: 0.8rem 1.2rem;
    border-radius: 0;
}

.dropdown-content a:hover {
    background: var(--slate-blue);
}

/* HERO SECTION */
.hero {
    position: relative;
    height: 70vh;
    min-height: 500px;
    display: flex;
    align-items: center;
    background: linear-gradient(135deg, var(--navy-deep) 0%, var(--slate-blue) 100%);
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-image: url('https://images.unsplash.com/photo-1541888946425-d81bb19240f5?q=80&w=2000');
    background-size: cover;
    background-position: center;
    opacity: 0.2;
    z-index: 0;
}

.hero-content {
    position: relative;
    z-index: 1;
    color: var(--white);
    max-width: 800px;
}

.hero h1 {
    color: var(--white);
    margin-bottom: var(--spacing-sm);
    text-transform: uppercase;
    animation: fadeInUp 0.8s ease;
}

.hero-subtitle {
    font-size: 1.3rem;
    margin-bottom: var(--spacing-md);
    color: var(--gray-light);
    animation: fadeInUp 1s ease;
}

.hero-tagline {
    font-size: 1.1rem;
    margin-bottom: var(--spacing-lg);
    color: var(--copper-accent);
    font-weight: 600;
    animation: fadeInUp 1.2s ease;
}

.hero-buttons {
    display: flex;
    gap: var(--spacing-sm);
    flex-wrap: wrap;
    animation: fadeInUp 1.4s ease;
}

/* BUTTONS */
.btn {
    display: inline-block;
    padding: 1rem 2rem;
    border-radius: 6px;
    font-weight: 600;
    font-size: 1rem;
    transition: var(--transition-medium);
    cursor: pointer;
    border: none;
    text-align: center;
}

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

.btn-primary:hover {
    background: var(--earth-warm);
    transform: translateY(-3px);
    box-shadow: var(--shadow-lg);
}

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

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

/* STATS SECTION */
.stats {
    background: var(--off-white);
    padding: var(--spacing-lg) 0;
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--spacing-md);
    text-align: center;
}

.stat-item {
    padding: var(--spacing-md);
}

.stat-number {
    font-family: var(--font-display);
    font-size: 3.5rem;
    color: var(--copper-accent);
    margin-bottom: var(--spacing-xs);
}

.stat-label {
    font-size: 1.1rem;
    color: var(--slate-blue);
    font-weight: 600;
}

/* SERVICES GRID */
.services-intro {
    text-align: center;
    max-width: 700px;
    margin: 0 auto var(--spacing-lg);
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--spacing-md);
    margin-top: var(--spacing-lg);
}

.service-card {
    background: var(--white);
    border-radius: 8px;
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    transition: var(--transition-medium);
    border: 1px solid var(--gray-light);
}

.service-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-lg);
}

.service-image {
    height: 220px;
    overflow: hidden;
}

.service-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: var(--transition-medium);
}

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

.service-content {
    padding: var(--spacing-md);
}

.service-content h3 {
    margin-bottom: var(--spacing-sm);
    color: var(--navy-deep);
}

.service-content p {
    color: var(--slate-light);
    margin-bottom: var(--spacing-sm);
}

.service-link {
    color: var(--copper-accent);
    font-weight: 600;
    display: inline-flex;
    align-items: center;
    gap: 0.3rem;
}

.service-link:hover {
    gap: 0.6rem;
}

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

.about-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-lg);
    align-items: center;
}

.about-image {
    border-radius: 8px;
    overflow: hidden;
    box-shadow: var(--shadow-md);
}

.about-content h2 {
    margin-bottom: var(--spacing-md);
}

.about-features {
    list-style: none;
    margin-top: var(--spacing-md);
}

.about-features li {
    padding: var(--spacing-sm) 0;
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    font-size: 1.05rem;
}

.about-features li::before {
    content: '✓';
    color: var(--copper-accent);
    font-weight: bold;
    font-size: 1.3rem;
}

/* CTA SECTION */
.cta-section {
    background: linear-gradient(135deg, var(--navy-deep) 0%, var(--slate-blue) 100%);
    color: var(--white);
    text-align: center;
    padding: var(--spacing-xl) 0;
}

.cta-section h2 {
    color: var(--white);
    margin-bottom: var(--spacing-sm);
}

.cta-section p {
    font-size: 1.2rem;
    margin-bottom: var(--spacing-md);
}

/* CONTACT FORM */
.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-lg);
}

.contact-info-block {
    background: var(--off-white);
    padding: var(--spacing-md);
    border-radius: 8px;
}

.contact-item {
    padding: var(--spacing-md) 0;
    border-bottom: 1px solid var(--gray-mid);
}

.contact-item:last-child {
    border-bottom: none;
}

.contact-item h4 {
    margin-bottom: var(--spacing-xs);
    color: var(--navy-deep);
}

.contact-item p {
    color: var(--slate-light);
}

.form-group {
    margin-bottom: var(--spacing-md);
}

.form-group label {
    display: block;
    margin-bottom: var(--spacing-xs);
    font-weight: 600;
    color: var(--navy-deep);
}

.form-group input,
.form-group textarea,
.form-group select {
    width: 100%;
    padding: 0.8rem;
    border: 2px solid var(--gray-light);
    border-radius: 6px;
    font-family: var(--font-body);
    font-size: 1rem;
    transition: var(--transition-fast);
}

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

.form-group textarea {
    min-height: 150px;
    resize: vertical;
}

/* SERVICE PAGE SPECIFIC */
.service-hero {
    background: linear-gradient(135deg, var(--navy-deep) 0%, var(--slate-blue) 100%);
    color: var(--white);
    padding: var(--spacing-xl) 0;
    text-align: center;
}

.service-hero h1 {
    color: var(--white);
}

.service-detail {
    padding: var(--spacing-lg) 0;
}

.service-features {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-md);
    margin: var(--spacing-lg) 0;
}

.feature-box {
    background: var(--off-white);
    padding: var(--spacing-md);
    border-radius: 8px;
    border-left: 4px solid var(--copper-accent);
}

.feature-box h4 {
    margin-bottom: var(--spacing-sm);
    color: var(--navy-deep);
}

.service-images {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-md);
    margin: var(--spacing-lg) 0;
}

.service-images img {
    border-radius: 8px;
    box-shadow: var(--shadow-md);
    width: 100%;
    height: 300px;
    object-fit: cover;
}

/* FOOTER */
.footer {
    background: var(--navy-deep);
    color: var(--white);
    padding: var(--spacing-lg) 0 var(--spacing-md);
}

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

.footer-column h3 {
    color: var(--white);
    font-size: 1.3rem;
    margin-bottom: var(--spacing-md);
}

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

.footer-column ul li {
    margin-bottom: var(--spacing-sm);
}

.footer-column a {
    color: var(--gray-light);
    transition: var(--transition-fast);
}

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

.footer-bottom {
    border-top: 1px solid var(--slate-blue);
    padding-top: var(--spacing-md);
    text-align: center;
    color: var(--gray-light);
    font-size: 0.9rem;
}

/* CHATBOT */
.chatbot-toggle {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 60px;
    height: 60px;
    border-radius: 50%;
    background: var(--copper-accent);
    color: var(--white);
    border: none;
    font-size: 1.5rem;
    cursor: pointer;
    box-shadow: var(--shadow-lg);
    z-index: 99999;
    transition: var(--transition-medium);
}

.chatbot-toggle:hover {
    transform: scale(1.1);
    background: var(--earth-warm);
}

.chatbot-window {
    position: fixed;
    bottom: 100px;
    right: 30px;
    width: 350px;
    height: 500px;
    background: var(--white);
    border-radius: 12px;
    box-shadow: var(--shadow-lg);
    display: none;
    flex-direction: column;
    z-index: 99998;
}

.chatbot-window.active {
    display: flex;
}

.chatbot-header {
    background: var(--navy-deep);
    color: var(--white);
    padding: var(--spacing-sm);
    border-radius: 12px 12px 0 0;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.chatbot-close {
    background: none;
    border: none;
    color: var(--white);
    font-size: 1.3rem;
    cursor: pointer;
}

.chatbot-body {
    flex: 1;
    padding: var(--spacing-sm);
    overflow-y: auto;
    background: var(--off-white);
}

.chatbot-footer {
    padding: var(--spacing-sm);
    border-top: 1px solid var(--gray-light);
    display: flex;
    gap: var(--spacing-xs);
}

.chatbot-footer input {
    flex: 1;
    padding: 0.6rem;
    border: 1px solid var(--gray-mid);
    border-radius: 20px;
    font-family: var(--font-body);
}

.chatbot-footer button {
    background: var(--copper-accent);
    color: var(--white);
    border: none;
    padding: 0.6rem 1.2rem;
    border-radius: 20px;
    cursor: pointer;
}

.chat-message {
    margin-bottom: var(--spacing-sm);
    padding: 0.8rem;
    border-radius: 8px;
    max-width: 80%;
}

.chat-message.bot {
    background: var(--white);
    align-self: flex-start;
}

.chat-message.user {
    background: var(--copper-accent);
    color: var(--white);
    align-self: flex-end;
    margin-left: auto;
}

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

/* RESPONSIVE DESIGN */
@media (max-width: 768px) {
    .nav-menu {
        display: none;
        flex-direction: column;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background: var(--navy-deep);
        padding: var(--spacing-md);
    }
    
    .nav-menu.active {
        display: flex;
    }
    
    .menu-toggle {
        display: block;
    }
    
    .about-grid,
    .contact-grid {
        grid-template-columns: 1fr;
    }
    
    .hero {
        height: 60vh;
        min-height: 400px;
    }
    
    .chatbot-window {
        width: 90%;
        right: 5%;
        left: 5%;
    }
    
    .hero-buttons {
        flex-direction: column;
    }
    
    .btn {
        width: 100%;
        text-align: center;
    }
}

@media (max-width: 480px) {
    :root {
        font-size: 14px;
    }
    
    .stats-grid {
        grid-template-columns: 1fr;
    }
    
    .services-grid {
        grid-template-columns: 1fr;
    }
}