/* ===================================
   DIRTY BIRDS HYDROVAC - STYLES
   Classic & Elegant Design System
=================================== */

/* CSS Variables */
:root {
    --color-midnight: #1e3a5f;
    --color-midnight-dark: #0f1f33;
    --color-mint: #2dd4bf;
    --color-mint-light: #ccfbf1;
    --color-cream: #f8fafc;
    --color-white: #ffffff;
    --color-text: #334155;
    --color-text-light: #64748b;
    --color-border: #e2e8f0;
    
    --font-serif: 'Cormorant Garamond', Georgia, serif;
    --font-sans: 'Lato', -apple-system, BlinkMacSystemFont, sans-serif;
    
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    
    --transition: all 0.3s ease;
}

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

html {
    scroll-behavior: smooth;
}

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

h1, h2, h3, h4 {
    font-family: var(--font-serif);
    font-weight: 600;
    line-height: 1.2;
    color: var(--color-midnight);
}

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

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

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 1.5rem;
}

/* Navigation */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--color-border);
    transition: var(--transition);
}

.nav-container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 80px;
}

.logo {
    font-family: var(--font-serif);
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--color-midnight);
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.logo-icon {
    color: var(--color-mint);
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 2rem;
}

.nav-links a {
    font-size: 0.95rem;
    font-weight: 400;
    color: var(--color-text);
    position: relative;
}

.nav-links a::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--color-mint);
    transition: var(--transition);
}

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

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

.btn-nav {
    padding: 0.625rem 1.5rem;
    background: var(--color-midnight);
    color: var(--color-white) !important;
    border-radius: 4px;
    font-weight: 600;
}

.btn-nav::after {
    display: none;
}

.btn-nav:hover {
    background: var(--color-midnight-dark);
    transform: translateY(-2px);
}

.mobile-menu-btn {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 0.5rem;
}

.mobile-menu-btn span {
    width: 24px;
    height: 2px;
    background: var(--color-midnight);
    transition: var(--transition);
}

/* Hero Section */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--color-midnight) 0%, #2d5a8a 50%, var(--color-mint) 100%);
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    inset: 0;
    background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><circle cx="20" cy="20" r="2" fill="rgba(255,255,255,0.1)"/><circle cx="80" cy="40" r="1.5" fill="rgba(255,255,255,0.08)"/><circle cx="40" cy="80" r="2.5" fill="rgba(255,255,255,0.06)"/><circle cx="90" cy="90" r="1" fill="rgba(255,255,255,0.1)"/></svg>');
    background-size: 100px 100px;
}

.hero-overlay {
    position: absolute;
    inset: 0;
    background: rgba(30, 58, 95, 0.4);
}

.hero-content {
    position: relative;
    z-index: 1;
    text-align: center;
    max-width: 800px;
    padding: 6rem 1.5rem;
}

.hero-title {
    font-size: clamp(2.5rem, 6vw, 4.5rem);
    color: var(--color-white);
    margin-bottom: 1.5rem;
    font-weight: 700;
    line-height: 1.1;
}

.hero-subtitle {
    font-size: clamp(1.1rem, 2vw, 1.35rem);
    color: rgba(255, 255, 255, 0.9);
    margin-bottom: 2.5rem;
    line-height: 1.6;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

.hero-buttons {
    display: flex;
    gap: 1rem;
    justify-content: center;
    flex-wrap: wrap;
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 1rem 2rem;
    border-radius: 4px;
    font-weight: 600;
    font-size: 1rem;
    transition: var(--transition);
    cursor: pointer;
    border: none;
}

.btn-primary {
    background: var(--color-mint);
    color: var(--color-midnight-dark);
}

.btn-primary:hover {
    background: #14b8a6;
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.btn-secondary {
    background: transparent;
    color: var(--color-white);
    border: 2px solid rgba(255, 255, 255, 0.5);
}

.btn-secondary:hover {
    background: rgba(255, 255, 255, 0.1);
    border-color: var(--color-white);
}

.btn-full {
    width: 100%;
}

/* Sections */
.section {
    padding: 6rem 0;
}

.section-header {
    text-align: center;
    max-width: 700px;
    margin: 0 auto 4rem;
}

.tagline {
    display: inline-block;
    font-size: 0.875rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--color-mint);
    margin-bottom: 1rem;
}

.section-title {
    font-size: clamp(2rem, 4vw, 3rem);
    margin-bottom: 1rem;
}

.section-desc {
    font-size: 1.125rem;
    color: var(--color-text-light);
}

/* Services */
.services {
    background: var(--color-cream);
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
}

.service-card {
    background: var(--color-white);
    padding: 2.5rem;
    border-radius: 8px;
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
    border: 1px solid var(--color-border);
}

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

.icon-box {
    width: 64px;
    height: 64px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--color-mint-light) 0%, var(--color-white) 100%);
    border-radius: 12px;
    margin-bottom: 1.5rem;
    color: var(--color-midnight);
}

.service-card h3 {
    font-size: 1.5rem;
    margin-bottom: 0.75rem;
}

.service-card p {
    color: var(--color-text-light);
    line-height: 1.7;
}

/* About */
.about-container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
}

.about-image {
    position: relative;
}

.about-image img {
    border-radius: 8px;
    box-shadow: var(--shadow-lg);
    width: 100%;
    height: 500px;
    object-fit: cover;
}

.about-accent {
    position: absolute;
    bottom: -20px;
    right: -20px;
    width: 200px;
    height: 200px;
    background: var(--color-mint);
    border-radius: 8px;
    z-index: -1;
    opacity: 0.3;
}

.about-content .section-title {
    text-align: left;
    margin-bottom: 1.5rem;
}

.about-content p {
    margin-bottom: 1.25rem;
    color: var(--color-text);
    line-height: 1.8;
}

.about-list {
    list-style: none;
    margin-top: 2rem;
    display: grid;
    gap: 1rem;
}

.about-list li {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    font-weight: 500;
    color: var(--color-midnight);
}

.about-list svg {
    color: var(--color-mint);
    flex-shrink: 0;
}

/* Process */
.process {
    background: var(--color-midnight);
    color: var(--color-white);
}

.process .section-title {
    color: var(--color-white);
}

.process .tagline {
    color: var(--color-mint);
}

.process-steps {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 2rem;
}

.step {
    text-align: center;
    padding: 2rem;
}

.step-number {
    font-family: var(--font-serif);
    font-size: 4rem;
    font-weight: 700;
    color: var(--color-mint);
    opacity: 0.3;
    line-height: 1;
    margin-bottom: 1rem;
}

.step h3 {
    color: var(--color-white);
    font-size: 1.5rem;
    margin-bottom: 0.75rem;
}

.step p {
    color: rgba(255, 255, 255, 0.7);
    line-height: 1.7;
}

/* Contact */
.contact {
    background: var(--color-cream);
}

.contact-container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
}

.contact-info .section-title {
    text-align: left;
    margin-bottom: 1rem;
}

.contact-info p {
    color: var(--color-text-light);
    margin-bottom: 2rem;
    line-height: 1.8;
}

.contact-details {
    display: grid;
    gap: 2rem;
}

.contact-item {
    display: flex;
    gap: 1.25rem;
    align-items: flex-start;
}

.contact-item svg {
    color: var(--color-mint);
    flex-shrink: 0;
    margin-top: 0.25rem;
}

.contact-item strong {
    display: block;
    color: var(--color-midnight);
    margin-bottom: 0.25rem;
}

.contact-item p {
    margin: 0;
    color: var(--color-text);
}

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

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

.contact-form-wrapper {
    background: var(--color-white);
    padding: 2.5rem;
    border-radius: 8px;
    box-shadow: var(--shadow-md);
}

.form-group {
    margin-bottom: 1.5rem;
}

.form-group label {
    display: block;
    font-weight: 600;
    color: var(--color-midnight);
    margin-bottom: 0.5rem;
    font-size: 0.95rem;
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 0.875rem 1rem;
    border: 1px solid var(--color-border);
    border-radius: 4px;
    font-family: var(--font-sans);
    font-size: 1rem;
    transition: var(--transition);
    background: var(--color-cream);
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--color-mint);
    box-shadow: 0 0 0 3px rgba(45, 212, 191, 0.1);
}

.form-success {
    text-align: center;
    padding: 3rem 2rem;
}

.form-success svg {
    color: var(--color-mint);
    margin-bottom: 1rem;
}

.form-success h3 {
    color: var(--color-midnight);
    margin-bottom: 0.75rem;
}

.form-success p {
    color: var(--color-text-light);
}

/* Footer */
.footer {
    background: var(--color-midnight-dark);
    color: var(--color-white);
    padding: 4rem 0 2rem;
}

.footer-container {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr;
    gap: 3rem;
    margin-bottom: 3rem;
}

.footer-brand h3 {
    color: var(--color-white);
    font-size: 1.75rem;
    margin-bottom: 1rem;
}

.footer-brand p {
    color: rgba(255, 255, 255, 0.6);
    line-height: 1.7;
}

.footer-links {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.footer-links a {
    color: rgba(255, 255, 255, 0.7);
}

.footer-links a:hover {
    color: var(--color-mint);
}

.footer-contact {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.footer-contact a {
    color: var(--color-mint);
}

.footer-contact a:hover {
    text-decoration: underline;
}

.footer-contact p {
    color: rgba(255, 255, 255, 0.6);
}

.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding-top: 2rem;
    text-align: center;
}

.footer-bottom p {
    color: rgba(255, 255, 255, 0.5);
    font-size: 0.875rem;
}

/* Responsive */
@media (max-width: 968px) {
    .about-container,
    .contact-container {
        grid-template-columns: 1fr;
        gap: 3rem;
    }
    
    .about-image {
        order: -1;
    }
    
    .about-image img {
        height: 400px;
    }
    
    .footer-container {
        grid-template-columns: 1fr 1fr;
    }
}

@media (max-width: 768px) {
    .nav-links {
        position: fixed;
        top: 80px;
        left: 0;
        right: 0;
        background: var(--color-white);
        flex-direction: column;
        padding: 2rem;
        gap: 1.5rem;
        box-shadow: var(--shadow-lg);
        transform: translateY(-150%);
        transition: var(--transition);
    }
    
    .nav-links.active {
        transform: translateY(0);
    }
    
    .mobile-menu-btn {
        display: flex;
    }
    
    .mobile-menu-btn.active span:nth-child(1) {
        transform: rotate(45deg) translate(5px, 5px);
    }
    
    .mobile-menu-btn.active span:nth-child(2) {
        opacity: 0;
    }
    
    .mobile-menu-btn.active span:nth-child(3) {
        transform: rotate(-45deg) translate(5px, -5px);
    }
    
    .hero-title {
        font-size: 2.5rem;
    }
    
    .hero-buttons {
        flex-direction: column;
    }
    
    .btn {
        width: 100%;
    }
    
    .footer-container {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .section {
        padding: 4rem 0;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 1rem;
    }
    
    .hero-content {
        padding: 4rem 1rem;
    }
    
    .service-card {
        padding: 1.5rem;
    }
    
    .contact-form-wrapper {
        padding: 1.5rem;
    }
}