/* Reset and Base Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --charcoal: #2c2c2c;
    --charcoal-dark: #1a1a1a;
    --charcoal-light: #3a3a3a;
    --white: #ffffff;
    --accent: #8b8b8b;
    --accent-light: #d4d4d4;
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 2rem;
    --spacing-lg: 4rem;
    --spacing-xl: 6rem;
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    color: var(--charcoal);
    background-color: var(--white);
    line-height: 1.7;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
    font-family: 'Cormorant Garamond', serif;
    font-weight: 400;
    line-height: 1.3;
    letter-spacing: -0.02em;
    color: var(--charcoal-dark);
}

h1 {
    font-size: clamp(2.5rem, 5vw, 4rem);
    font-weight: 300;
    margin-bottom: var(--spacing-md);
}

h2 {
    font-size: clamp(2rem, 4vw, 3rem);
    font-weight: 400;
    margin-bottom: var(--spacing-sm);
}

h3 {
    font-size: clamp(1.5rem, 3vw, 2rem);
    font-weight: 400;
    margin-bottom: var(--spacing-sm);
}

p {
    font-size: clamp(1rem, 1.5vw, 1.125rem);
    line-height: 1.8;
    color: var(--charcoal-light);
    margin-bottom: var(--spacing-sm);
}

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

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

/* Header and Navigation */
.main-header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background-color: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid rgba(44, 44, 44, 0.1);
    z-index: 1000;
    transition: var(--transition);
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: var(--spacing-sm) var(--spacing-md);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    font-family: 'Cormorant Garamond', serif;
    font-size: 1.5rem;
    font-weight: 500;
    letter-spacing: 0.02em;
    color: var(--charcoal-dark);
}

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

.nav-link {
    font-size: 0.95rem;
    font-weight: 400;
    letter-spacing: 0.01em;
    text-transform: lowercase;
    position: relative;
    padding: var(--spacing-xs) 0;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 1px;
    background-color: var(--charcoal);
    transition: var(--transition);
}

.nav-link:hover::after,
.nav-link.active::after {
    width: 100%;
}

.mobile-menu-toggle {
    display: none;
    flex-direction: column;
    gap: 4px;
    background: none;
    border: none;
    cursor: pointer;
    padding: var(--spacing-xs);
}

.mobile-menu-toggle span {
    width: 24px;
    height: 1px;
    background-color: var(--charcoal);
    transition: var(--transition);
}

/* Main Content */
.main-content {
    margin-top: 70px;
    min-height: calc(100vh - 70px);
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: var(--spacing-lg) var(--spacing-md);
}

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

/* Hero Section */
.hero {
    padding: var(--spacing-xl) var(--spacing-md);
    text-align: center;
    max-width: 900px;
    margin: 0 auto;
}

.hero h1 {
    margin-bottom: var(--spacing-md);
    animation: fadeInUp 0.8s ease-out;
}

.hero-subtext {
    font-size: clamp(1.125rem, 2vw, 1.25rem);
    line-height: 1.9;
    color: var(--charcoal-light);
    max-width: 700px;
    margin: 0 auto var(--spacing-lg);
    animation: fadeInUp 0.8s ease-out 0.2s both;
}

.cta-button {
    display: inline-block;
    padding: 1rem 2.5rem;
    background-color: var(--charcoal-dark);
    color: var(--white);
    font-size: 0.95rem;
    font-weight: 400;
    letter-spacing: 0.05em;
    text-transform: lowercase;
    border: 1px solid var(--charcoal-dark);
    transition: var(--transition);
    animation: fadeInUp 0.8s ease-out 0.4s both;
}

.cta-button:hover {
    background-color: transparent;
    color: var(--charcoal-dark);
}

/* About Section */
.about-content {
    max-width: 800px;
    margin: 0 auto;
}

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

/* Services Section */
.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-lg);
    margin-top: var(--spacing-lg);
}

.service-card {
    padding: var(--spacing-md);
    border-bottom: 1px solid rgba(44, 44, 44, 0.1);
    transition: var(--transition);
}

.service-card:hover {
    border-bottom-color: var(--charcoal);
}

.service-card h3 {
    margin-bottom: var(--spacing-sm);
    font-size: 1.75rem;
}

.service-card p {
    font-size: 1rem;
    line-height: 1.8;
}

/* Case Studies */
.case-studies-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: var(--spacing-lg);
    margin-top: var(--spacing-lg);
}

.case-study-card {
    background-color: var(--white);
    border: 1px solid rgba(44, 44, 44, 0.1);
    padding: var(--spacing-md);
    transition: var(--transition);
}

.case-study-card:hover {
    border-color: var(--charcoal);
    transform: translateY(-2px);
}

.case-study-card h3 {
    margin-bottom: var(--spacing-sm);
    font-size: 1.5rem;
}

.case-study-card p {
    font-size: 0.95rem;
    margin-bottom: var(--spacing-sm);
}

.case-study-tag {
    display: inline-block;
    font-size: 0.85rem;
    color: var(--accent);
    text-transform: uppercase;
    letter-spacing: 0.1em;
    margin-top: var(--spacing-sm);
}

/* Contact Form */
.contact-section {
    max-width: 600px;
    margin: 0 auto;
}

.contact-note {
    text-align: center;
    font-size: 0.9rem;
    color: var(--accent);
    margin-bottom: var(--spacing-lg);
    font-style: italic;
}

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

.form-group label {
    display: block;
    font-size: 0.9rem;
    font-weight: 400;
    margin-bottom: var(--spacing-xs);
    color: var(--charcoal-dark);
    text-transform: lowercase;
    letter-spacing: 0.02em;
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 0.875rem;
    font-family: 'Inter', sans-serif;
    font-size: 1rem;
    border: 1px solid rgba(44, 44, 44, 0.2);
    background-color: var(--white);
    color: var(--charcoal);
    transition: var(--transition);
}

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

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

.form-submit {
    width: 100%;
    padding: 1rem;
    background-color: var(--charcoal-dark);
    color: var(--white);
    border: 1px solid var(--charcoal-dark);
    font-size: 0.95rem;
    font-weight: 400;
    letter-spacing: 0.05em;
    text-transform: lowercase;
    cursor: pointer;
    transition: var(--transition);
}

.form-submit:hover {
    background-color: transparent;
    color: var(--charcoal-dark);
}

.form-message {
    padding: var(--spacing-sm);
    margin-bottom: var(--spacing-md);
    text-align: center;
    border: 1px solid;
}

.form-message.success {
    background-color: rgba(0, 0, 0, 0.05);
    border-color: var(--charcoal);
    color: var(--charcoal);
}

.form-message.error {
    background-color: rgba(0, 0, 0, 0.05);
    border-color: var(--charcoal);
    color: var(--charcoal);
}

/* Footer */
.main-footer {
    border-top: 1px solid rgba(44, 44, 44, 0.1);
    padding: var(--spacing-lg) var(--spacing-md);
    text-align: center;
    margin-top: var(--spacing-xl);
}

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

.footer-text {
    font-size: 0.9rem;
    color: var(--accent);
    margin-bottom: var(--spacing-xs);
}

.footer-note {
    font-size: 0.85rem;
    color: var(--accent);
    font-style: italic;
}

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

/* Responsive Design */
@media (max-width: 768px) {
    .nav-menu {
        position: fixed;
        top: 70px;
        left: 0;
        right: 0;
        background-color: var(--white);
        flex-direction: column;
        padding: var(--spacing-md);
        border-bottom: 1px solid rgba(44, 44, 44, 0.1);
        transform: translateY(-100%);
        opacity: 0;
        visibility: hidden;
        transition: var(--transition);
    }

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

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

    .mobile-menu-toggle.active span:nth-child(1) {
        transform: rotate(45deg) translate(5px, 5px);
    }

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

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

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

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

    .hero {
        padding: var(--spacing-lg) var(--spacing-md);
    }
}

@media (max-width: 480px) {
    .container {
        padding: var(--spacing-md) var(--spacing-sm);
    }

    .hero {
        padding: var(--spacing-md) var(--spacing-sm);
    }
}