/*
    Digital Marketing Agency - Corporate Gradient Theme
    Author: AI Assistant
    Version: 9.0.0
*/
:root {
    --color-bg: #0D1117;
    --color-surface: #161B22;
    --color-primary: #3B82F6;
    --color-secondary: #14B8A6;
    --color-text: #CDD5E0;
    --color-text-muted: #94A3B8;
    --color-border: #30363D;
    --font-heading: 'Lexend', sans-serif;
    --font-body: 'Inter', sans-serif;
    --gradient-main: linear-gradient(90deg, var(--color-primary) 0%, var(--color-secondary) 100%);
    --shadow-light: 0 4px 10px rgba(0, 0, 0, 0.1);
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-body);
    background: var(--color-bg);
    color: var(--color-text);
    line-height: 1.7;
}

h1,
h2,
h3,
h4 {
    font-family: var(--font-heading);
    color: #FFF;
    font-weight: 700;
    line-height: 1.3;
}

h1 {
    font-size: 3.5rem;
}

h2 {
    font-size: 2.5rem;
}

h3 {
    font-size: 1.5rem;
}

p {
    color: var(--color-text-muted);
    margin-bottom: 1rem;
}

a {
    color: var(--color-secondary);
    text-decoration: none;
    font-weight: 600;
}

a:hover {
    text-decoration: underline;
}

ul {
    list-style: none;
}

.container {
    max-width: 1100px;
    margin: 0 auto;
    padding: 0 20px;
}

.btn {
    display: inline-block;
    padding: 12px 28px;
    border-radius: 8px;
    font-weight: 600;
    text-decoration: none;
    border: 2px solid;
}

.btn-primary {
    background: var(--gradient-main);
    border: none;
    color: #FFF;
}

.btn-primary:hover {
    text-decoration: none;
    box-shadow: 0 0 20px rgba(59, 130, 246, 0.4);
}

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

.btn-outline:hover {
    background: var(--color-secondary);
    color: var(--color-bg);
    text-decoration: none;
}

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

.gradient-text {
    background: var(--gradient-main);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    text-fill-color: transparent;
}

.site-header {
    background: rgba(13, 17, 23, 0.8);
    backdrop-filter: blur(10px);
    position: sticky;
    top: 0;
    z-index: 1000;
    border-bottom: 1px solid var(--color-border);
}

.header-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 75px;
}

.logo img {
    height: 90px;
    filter: brightness(0) invert(1);
}

.nav-menu {
    display: flex;
    align-items: center;
    gap: 2rem;
    list-style: none;
}

.nav-menu a {
    color: #FFF;
    font-weight: 600;
}

.nav-toggle {
    display: none;
    background: none;
    border: none;
}

.nav-toggle span {
    display: block;
    width: 25px;
    height: 2px;
    background: #FFF;
    margin: 6px 0;
}

.hero {
    text-align: center;
    padding: 6rem 0;
}

.hero-content {
    max-width: 800px;
    margin: 0 auto;
}

.hero-subtitle {
    font-size: 1.15rem;
    margin: 1.5rem 0 2rem;
}

.social-proof {
    padding: 2rem 0;
    text-align: center;
}

.social-proof p {
    font-size: 0.8rem;
    letter-spacing: 1.5px;
    margin-bottom: 1.5rem;
}

.logos-grid {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 3rem;
    filter: grayscale(100%) opacity(0.5);
}

.kpi-section {
    background: var(--color-surface);
    padding: 3rem 0;
    border-top: 1px solid var(--color-border);
    border-bottom: 1px solid var(--color-border);
}

.kpi-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
    text-align: center;
}

.kpi-item h3 {
    background: var(--gradient-main);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    text-fill-color: transparent;
    font-size: 3rem;
    line-height: 1;
}

.services-section,
.differentiators-section,
.case-study-section,
.process-section,
.faq-section,
.industries-section,
.tech-stack-section {
    padding: 6rem 0;
}

.services-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1.5rem;
}

.service-card {
    background: var(--color-surface);
    padding: 2rem;
    border: 1px solid var(--color-border);
    border-radius: 12px;
}

.differentiators-section {
    background: var(--color-surface);
}

.differentiators-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
    align-items: center;
}

.differentiators-content ul {
    list-style: none;
    padding: 0;
    margin-top: 1.5rem;
}

.differentiators-content li {
    padding-left: 2rem;
    position: relative;
    margin-bottom: 1rem;
}

.differentiators-content li::before {
    content: '✓';
    color: var(--color-secondary);
    position: absolute;
    left: 0;
}

.differentiators-image {
    height: 400px;
    background: url('https://images.unsplash.com/photo-1552664730-d307ca884978?q=80&w=2670&auto=format&fit=crop');
    background-size: cover;
    border-radius: 12px;
}

.case-study-card {
    background: var(--color-surface);
    padding: 2.5rem;
    border-radius: 12px;
    border: 1px solid var(--color-border);
}

.process-section {
    background: var(--color-surface);
}

.process-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 1.5rem;
}

.process-step {
    text-align: center;
}

.process-step span {
    font-size: 2rem;
    font-weight: 800;
    color: var(--color-secondary);
}

.industries-grid {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 1rem;
}

.industry-item {
    padding: 8px 18px;
    border: 1px solid var(--color-border);
    border-radius: 30px;
    font-weight: 500;
}

.tech-stack-section {
    background: var(--color-surface);
}

.faq-container {
    max-width: 800px;
    margin: auto;
}

.faq-item {
    border-bottom: 1px solid var(--color-border);
}

.faq-item summary {
    font-size: 1.2rem;
    font-weight: 600;
    padding: 1.5rem 0;
    cursor: pointer;
    list-style: none;
}

.faq-item[open] summary {
    color: var(--color-secondary);
}

.faq-item p {
    padding-bottom: 1.5rem;
}

.cta-section {
    padding: 5rem 0;
    text-align: center;
}

.site-footer {
    background: var(--color-surface);
    padding: 4rem 0 2rem;
    border-top: 1px solid var(--color-border);
    font-size: 0.9rem;
}

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

.footer-logo {
    height: 80px;
    margin-bottom: 1rem;
    filter: brightness(0) invert(1);
}

.footer-links h4 {
    color: #FFF;
    margin-bottom: 1rem;
}

.footer-links a,
.footer-contact p,
.footer-contact a {
    color: var(--color-text-muted);
    font-weight: 400;
}

.footer-bottom {
    text-align: center;
    border-top: 1px solid var(--color-border);
    padding-top: 2rem;
}

.page-header {
    padding: 4rem 0;
    text-align: center;
    background: var(--color-surface);
}

.page-header p {
    max-width: 600px;
    margin: 1rem auto 0;
}

.contact-page-content,
.legal-page-content {
    padding: 5rem 0;
}

.contact-form-wrapper,
.legal-content-wrapper {
    max-width: 700px;
    margin: 0 auto;
    background: var(--color-surface);
    padding: 3rem;
    border-radius: 12px;
    border: 1px solid var(--color-border);
}

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

.form-group label {
    display: block;
    font-weight: 600;
    margin-bottom: 0.5rem;
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 12px;
    background: var(--color-bg);
    border: 1px solid var(--color-border);
    border-radius: 8px;
    color: var(--color-text);
    font-size: 1rem;
}

.legal-content-wrapper h2 {
    margin-top: 1.5rem;
    padding-bottom: 0.5rem;
    border-bottom: 1px solid var(--color-border);
}

@media(max-width: 992px) {

    .differentiators-grid,
    .kpi-grid {
        grid-template-columns: 1fr;
    }

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

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

@media (max-width: 768px) {
    h1 {
        font-size: 2.5rem;
    }

    h2 {
        font-size: 2rem;
    }

    .nav-toggle {
        display: block;
    }

    .nav-menu {
        display: none;
        position: absolute;
        top: 75px;
        left: 0;
        width: 100%;
        background: var(--color-surface);
        flex-direction: column;
        align-items: stretch;
    }

    .nav-menu.is-active {
        display: flex;
    }

    .nav-menu li {
        border-top: 1px solid var(--color-border);
    }

    .nav-menu a {
        display: block;
        padding: 1rem;
    }

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

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