/*
    Digital Marketing Agency - Corporate Trust Theme
    Author: AI Assistant
    Version: 4.0.0
*/

/* =================================================================== */
/* 1. ROOT VARIABLES AND GLOBAL RESETS                                 */
/* =================================================================== */
:root {
    --color-primary: #0052CC;
    /* Corporate Blue */
    --color-secondary: #00A3BF;
    /* Teal Accent */
    --color-dark: #172B4D;
    /* Dark Blue-Gray */
    --color-body-text: #5E6C84;
    --color-light-gray: #F4F5F7;
    --color-white: #FFFFFF;
    --color-border: #DFE1E6;
    --font-heading: 'Montserrat', sans-serif;
    --font-body: 'Open Sans', sans-serif;
    --border-radius: 4px;
    --shadow: 0 4px 8px rgba(0, 0, 0, 0.05);
}

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

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

body {
    font-family: var(--font-body);
    line-height: 1.6;
    color: var(--color-body-text);
    background-color: var(--color-white);
    -webkit-font-smoothing: antialiased;
}

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

h1 {
    font-size: 3rem;
}

h2 {
    font-size: 2.25rem;
}

h3 {
    font-size: 1.25rem;
}

p {
    margin-bottom: 1rem;
}

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

a:hover {
    text-decoration: underline;
}

ul {
    list-style: none;
}

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

address {
    font-style: normal;
}

/* =================================================================== */
/* 2. UTILITY & LAYOUT                                                 */
/* =================================================================== */
.container {
    max-width: 1140px;
    margin: 0 auto;
    padding: 0 20px;
}

.btn {
    display: inline-block;
    padding: 12px 28px;
    font-family: var(--font-heading);
    font-weight: 600;
    border-radius: var(--border-radius);
    border: 2px solid;
    cursor: pointer;
    text-decoration: none;
    text-align: center;
    font-size: 0.9rem;
}

.btn:hover {
    text-decoration: none;
}

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

.btn--primary:hover {
    background-color: #0045A5;
    border-color: #0045A5;
}

.btn--secondary {
    background-color: var(--color-white);
    border-color: var(--color-border);
    color: var(--color-dark);
}

.btn--secondary:hover {
    background-color: var(--color-light-gray);
}

.btn--outline {
    background-color: transparent;
    border-color: var(--color-white);
    color: var(--color-white);
}

.btn--outline:hover {
    background-color: var(--color-white);
    color: var(--color-dark);
}

.tagline {
    display: block;
    font-family: var(--font-heading);
    color: var(--color-secondary);
    font-weight: 600;
    font-size: 0.9rem;
    margin-bottom: 0.5rem;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.section-heading {
    text-align: center;
    max-width: 700px;
    margin: 0 auto 3.5rem auto;
}

.section-heading--light h2,
.section-heading--light p {
    color: var(--color-white);
}

/* =================================================================== */
/* 3. HEADER & NAVIGATION                                              */
/* =================================================================== */
.site-header {
    background-color: var(--color-dark);
    color: var(--color-white);
    position: sticky;
    top: 0;
    z-index: 1000;
}

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

.logo img {
    height: 100px;
}

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

.nav-menu a {
    color: var(--color-white);
    font-weight: 600;
    padding: 0.5rem 0;
}

.nav-menu a:not(.btn):hover {
    color: var(--color-secondary);
    text-decoration: none;
}

.nav-toggle {
    display: none;
    background: none;
    border: none;
    cursor: pointer;
    padding: 0;
}

.nav-toggle-bar {
    display: block;
    width: 25px;
    height: 3px;
    background-color: var(--color-white);
    margin: 5px 0;
}

/* =================================================================== */
/* 4. FOOTER                                                           */
/* =================================================================== */
.site-footer {
    background-color: var(--color-dark);
    color: var(--color-light-gray);
    padding: 4rem 0 0;
    font-size: 0.9rem;
}

.footer-main {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: 2.5rem;
    padding-bottom: 3rem;
}

.footer-logo {
    height: 100px;
    margin-bottom: 1rem;
}

.footer-about p {
    color: #A5ADBA;
}

.footer-links h4,
.footer-contact h4 {
    font-size: 1rem;
    color: var(--color-white);
    margin-bottom: 1rem;
}

.footer-links ul li {
    margin-bottom: 0.75rem;
}

.footer-links a,
.footer-contact a {
    color: #A5ADBA;
}

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

.footer-legal {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1.5rem 0;
    border-top: 1px solid #2C3E5D;
}

.footer-legal p {
    margin: 0;
    color: #A5ADBA;
}

.footer-legal ul {
    display: flex;
    gap: 1.5rem;
}

.footer-legal a {
    color: #A5ADBA;
}

/* =================================================================== */
/* 5. PAGE SECTIONS                                                    */
/* =================================================================== */
.hero {
    background-color: var(--color-light-gray);
    padding: 5rem 0;
    text-align: center;
    padding: 12rem 0;
}

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

.hero-title {
    margin-bottom: 1rem;
}

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

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

.services-section {
    padding: 5rem 0;
}

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

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

.service-card h3 {
    color: var(--color-primary);
}

.impact-section {
    background-color: var(--color-dark);
    color: var(--color-white);
    padding: 5rem 0;
    text-align: center;
}

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

.impact-stat-number {
    display: block;
    font-family: var(--font-heading);
    font-size: 4rem;
    font-weight: 700;
    color: var(--color-secondary);
    line-height: 1.1;
}

.impact-stat-label {
    font-size: 1rem;
    color: #A5ADBA;
    margin-top: 0.5rem;
}

.tech-section {
    padding: 5rem 0;
    background-color: var(--color-light-gray);
}

.tech-grid {
    display: grid;
    grid-template-columns: repeat(6, 1fr);
    gap: 1.5rem;
}

.tech-logo {
    background-color: var(--color-white);
    border: 1px solid var(--color-border);
    height: 80px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--border-radius);
    font-weight: 600;
    color: var(--color-body-text);
}

.insights-section {
    padding: 5rem 0;
}

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

.insight-card {
    border: 1px solid var(--color-border);
    border-radius: var(--border-radius);
    overflow: hidden;
    box-shadow: var(--shadow);
}

.insight-card-content {
    padding: 2rem;
}

.insight-category {
    display: inline-block;
    background-color: var(--color-light-gray);
    color: var(--color-body-text);
    padding: 4px 10px;
    border-radius: 50px;
    font-size: 0.8rem;
    font-weight: 600;
    margin-bottom: 1rem;
}

.read-more-link {
    font-weight: 600;
    display: inline-block;
    margin-top: 1rem;
}

/* =================================================================== */
/* 6. SUB-PAGES (CONTACT, LEGAL)                                       */
/* =================================================================== */
.page-header-section {
    background-color: var(--color-dark);
    color: var(--color-white);
    padding: 3rem 0;
    text-align: center;
}

.page-header-section h1 {
    color: var(--color-white);
}

.page-header-section p {
    color: #A5ADBA;
    max-width: 600px;
    margin: 0 auto;
}

.contact-page-section {
    padding: 5rem 0;
}

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

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

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

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

.contact-info-block {
    background-color: var(--color-light-gray);
    padding: 1.5rem;
    border-radius: var(--border-radius);
    margin-bottom: 1.5rem;
}

.contact-info-block h3 {
    color: var(--color-primary);
}

.legal-page-content {
    padding: 4rem 0;
}

.legal-text {
    max-width: 800px;
    margin: 0 auto;
}

.legal-text h2 {
    margin-top: 2rem;
    padding-bottom: 0.5rem;
    border-bottom: 1px solid var(--color-border);
}

.legal-text p,
.legal-text li {
    color: var(--color-dark);
}

/* =================================================================== */
/* 7. RESPONSIVE DESIGN                                                */
/* =================================================================== */
@media (max-width: 992px) {

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

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

    .tech-grid {
        grid-template-columns: repeat(3, 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-color: var(--color-dark);
        flex-direction: column;
        align-items: stretch;
    }

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

    .nav-menu li {
        text-align: center;
    }

    .nav-menu a {
        padding: 1rem;
        display: block;
        width: 100%;
        border-top: 1px solid #2C3E5D;
    }

    .nav-menu .btn {
        margin: 1rem;
    }

    .services-grid,
    .impact-grid,
    .insights-grid,
    .contact-grid {
        grid-template-columns: 1fr;
    }

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

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

    .footer-legal {
        flex-direction: column;
        gap: 1rem;
    }
}