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

:root {
    --color-black: #0a0a0a;
    --color-dark-gray: #1a1a1a;
    --color-gray: #6b6b6b;
    --color-light-gray: #e5e5e5;
    --color-white: #ffffff;
    --color-blue: #2563eb;
    --color-blue-dark: #1e40af;
    --color-blue-light: #3b82f6;

    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 2rem;
    --spacing-lg: 4rem;
    --spacing-xl: 6rem;

    --font-primary: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    --font-size-base: 16px;

    --transition: all 0.3s ease;
}

html {
    font-size: var(--font-size-base);
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-primary);
    line-height: 1.6;
    color: var(--color-black);
    background-color: var(--color-white);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* ===== TYPOGRAPHY ===== */
h1, h2, h3, h4, h5, h6 {
    font-weight: 600;
    line-height: 1.2;
    margin-bottom: var(--spacing-sm);
}

h1 {
    font-size: clamp(2rem, 5vw, 3.5rem);
}

h2 {
    font-size: clamp(1.75rem, 4vw, 2.5rem);
}

h3 {
    font-size: clamp(1.25rem, 3vw, 1.75rem);
}

p {
    margin-bottom: var(--spacing-sm);
}

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

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

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

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

.nav-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-sm) 0;
}

.logo {
    font-size: 1.5rem;
    font-weight: 700;
    letter-spacing: -0.5px;
    color: var(--color-black);
}

.nav-links {
    display: flex;
    list-style: none;
    gap: var(--spacing-md);
}

.nav-links a {
    color: var(--color-gray);
    font-size: 0.9rem;
    font-weight: 500;
    transition: var(--transition);
}

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

.nav-toggle {
    display: none;
    flex-direction: column;
    background: none;
    border: none;
    cursor: pointer;
    padding: 0.5rem;
}

.nav-toggle span {
    width: 24px;
    height: 2px;
    background-color: var(--color-black);
    margin: 3px 0;
    transition: var(--transition);
}

/* ===== HERO SECTION ===== */
.hero {
    margin-top: 80px;
    padding: var(--spacing-xl) 0;
    background: linear-gradient(135deg, var(--color-white) 0%, #f8f9fa 100%);
    border-bottom: 1px solid var(--color-light-gray);
}

.hero-content {
    text-align: center;
    max-width: 800px;
    margin: 0 auto;
    padding: var(--spacing-lg) 0;
}

.hero-title {
    margin-bottom: var(--spacing-md);
    color: var(--color-black);
}

.hero-subtitle {
    font-size: 1.25rem;
    color: var(--color-gray);
    margin-bottom: var(--spacing-md);
}

/* ===== BUTTONS ===== */
.cta-button {
    display: inline-block;
    padding: 1rem 2.5rem;
    background-color: var(--color-blue);
    color: var(--color-white);
    border: none;
    border-radius: 4px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    text-align: center;
}

.cta-button:hover {
    background-color: var(--color-blue-dark);
    transform: translateY(-2px);
    box-shadow: 0 10px 25px rgba(37, 99, 235, 0.2);
}

.text-link {
    color: var(--color-blue);
    font-weight: 500;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
}

.text-link:hover {
    color: var(--color-blue-dark);
}

/* ===== EXPERIENCE SECTION ===== */
.experience {
    background-color: var(--color-white);
}

.experience-content {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: var(--spacing-lg);
    align-items: center;
}

.large-text {
    font-size: 1.25rem;
    font-weight: 500;
    line-height: 1.6;
    color: var(--color-black);
    margin-bottom: var(--spacing-md);
}

.experience-text p {
    color: var(--color-gray);
    margin-bottom: var(--spacing-md);
}

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

.experience-list li {
    padding-left: var(--spacing-md);
    position: relative;
    margin-bottom: var(--spacing-sm);
    color: var(--color-gray);
}

.experience-list li::before {
    content: '→';
    position: absolute;
    left: 0;
    color: var(--color-blue);
    font-weight: bold;
}

.experience-stats {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.stat-item {
    text-align: center;
    padding: var(--spacing-md);
    background-color: #f8f9fa;
    border-radius: 4px;
}

.stat-number {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--color-blue);
    line-height: 1;
}

.stat-label {
    font-size: 0.9rem;
    color: var(--color-gray);
    margin-top: var(--spacing-xs);
}

/* ===== SERVICES SECTION ===== */
.services {
    background: linear-gradient(180deg, #f8f9fa 0%, var(--color-white) 100%);
}

.section-title {
    text-align: center;
    margin-bottom: var(--spacing-lg);
}

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

.service-card {
    padding: var(--spacing-md);
    background-color: var(--color-white);
    border: 1px solid var(--color-light-gray);
    border-radius: 4px;
    transition: var(--transition);
}

.service-card:hover {
    border-color: var(--color-blue);
    transform: translateY(-5px);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.05);
}

.service-number {
    font-size: 0.875rem;
    font-weight: 700;
    color: var(--color-blue);
    margin-bottom: var(--spacing-sm);
}

.service-title {
    margin-bottom: var(--spacing-sm);
    color: var(--color-black);
}

.service-description {
    color: var(--color-gray);
    font-size: 0.95rem;
    line-height: 1.6;
}

/* ===== PROCESS SECTION ===== */
.process {
    background-color: var(--color-white);
}

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

.process-step {
    position: relative;
    padding: var(--spacing-md);
    text-align: center;
}

.step-line {
    position: absolute;
    top: 30px;
    left: 50%;
    width: 100%;
    height: 2px;
    background-color: var(--color-light-gray);
    z-index: -1;
}

.process-step:last-child .step-line {
    display: none;
}

.step-number {
    width: 60px;
    height: 60px;
    margin: 0 auto var(--spacing-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: var(--color-black);
    color: var(--color-white);
    border-radius: 50%;
    font-size: 1.5rem;
    font-weight: 700;
}

.step-title {
    margin-bottom: var(--spacing-xs);
}

.step-description {
    color: var(--color-gray);
    font-size: 0.9rem;
}

/* ===== BLOG SECTION ===== */
.blog {
    background: linear-gradient(135deg, #f8f9fa 0%, var(--color-white) 100%);
}

.blog-content {
    text-align: center;
    max-width: 700px;
    margin: 0 auto;
}

.blog-description {
    color: var(--color-gray);
    font-size: 1.1rem;
    margin-bottom: var(--spacing-md);
}

/* ===== CONTACT SECTION ===== */
.contact {
    background-color: var(--color-dark-gray);
    color: var(--color-white);
}

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

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

.contact-text {
    color: var(--color-light-gray);
    margin-bottom: var(--spacing-md);
}

.contact-methods {
    margin-top: var(--spacing-md);
}

.contact-method {
    margin-bottom: var(--spacing-sm);
    color: var(--color-light-gray);
}

.contact-method a {
    color: var(--color-blue-light);
    text-decoration: underline;
}

.contact-method a:hover {
    color: var(--color-white);
}

/* ===== FORM ===== */
.contact-form {
    background-color: rgba(255, 255, 255, 0.05);
    padding: var(--spacing-md);
    border-radius: 4px;
    border: 1px solid rgba(255, 255, 255, 0.1);
}

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

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 0.875rem;
    background-color: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: 4px;
    color: var(--color-white);
    font-family: var(--font-primary);
    font-size: 1rem;
    transition: var(--transition);
}

.form-group input::placeholder,
.form-group textarea::placeholder {
    color: var(--color-gray);
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--color-blue-light);
    background-color: rgba(255, 255, 255, 0.08);
}

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

.contact-form .cta-button {
    width: 100%;
    margin-top: var(--spacing-sm);
}

.form-privacy {
    font-size: 0.75rem;
    color: var(--color-gray);
    text-align: center;
    margin-top: var(--spacing-sm);
}

/* ===== FOOTER ===== */
.footer {
    background-color: var(--color-black);
    color: var(--color-light-gray);
    padding: var(--spacing-md) 0;
}

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

.footer-text p {
    font-size: 0.875rem;
    margin: 0;
}

.footer-links a {
    font-size: 0.875rem;
    color: var(--color-light-gray);
}

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

/* ===== RESPONSIVE ===== */
@media (max-width: 768px) {
    .nav-links {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        flex-direction: column;
        background-color: var(--color-white);
        padding: var(--spacing-sm);
        border-bottom: 1px solid var(--color-light-gray);
        gap: var(--spacing-sm);
    }

    .nav-links.active {
        display: flex;
    }

    .nav-toggle {
        display: flex;
    }

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

    .experience-content {
        grid-template-columns: 1fr;
    }

    .experience-stats {
        flex-direction: row;
        justify-content: space-around;
    }

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

    .process-steps {
        grid-template-columns: 1fr;
    }

    .step-line {
        display: none;
    }

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

    .footer-content {
        flex-direction: column;
        gap: var(--spacing-sm);
        text-align: center;
    }
}

@media (max-width: 480px) {
    :root {
        --spacing-lg: 3rem;
        --spacing-xl: 4rem;
    }

    .hero-subtitle {
        font-size: 1.1rem;
    }

    .large-text {
        font-size: 1.1rem;
    }

    .experience-stats {
        flex-direction: column;
    }

    .cta-button {
        padding: 0.875rem 2rem;
        font-size: 0.95rem;
    }
}

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

.fade-in {
    animation: fadeIn 0.6s ease-out;
}

/* ===== UTILITIES ===== */
.text-center {
    text-align: center;
}

.mt-1 { margin-top: var(--spacing-sm); }
.mt-2 { margin-top: var(--spacing-md); }
.mt-3 { margin-top: var(--spacing-lg); }

.mb-1 { margin-bottom: var(--spacing-sm); }
.mb-2 { margin-bottom: var(--spacing-md); }
.mb-3 { margin-bottom: var(--spacing-lg); }