/*
 * Digital Marketing Agency CSS - "Neutron" Theme
 * Author: AI Assistant
 * Version: 2.0.0
 */

/* ---------------------------------- */
/* 1. ROOT & GLOBAL STYLES
/* ---------------------------------- */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;700;800&display=swap');

:root {
    --color-dark-navy: #0a0a0f;
    --color-light-navy: #151520;
    --color-lightest-navy: #1f2030;
    --color-slate: #b0bec5;
    --color-light-slate: #cfd8dc;
    --color-lightest-slate: #eceff1;
    --color-white: #ffffff;
    --color-accent: #00d084;
    --color-accent-tint: rgba(0, 208, 132, 0.15);
    --font-sans: 'Nunito', sans-serif;
    --text-base-size: 16px;
    --h1-size: clamp(2.8rem, 5vw, 4.5rem);
    --h2-size: clamp(2.2rem, 4vw, 3.5rem);
    --h3-size: 1.5rem;
    --container-width: 1100px;
    --header-height: 100px;
    --header-scroll-height: 70px;
    --section-padding: 100px 0;
    --transition: all 0.25s cubic-bezier(0.5, 0.1, 0.3, 1);
    --border-radius: 8px;
}

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

html {
    scroll-behavior: smooth;
}

body {
    background-color: var(--color-dark-navy);
    color: var(--color-slate);
    font-family: var(--font-sans);
    font-size: var(--text-base-size);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* ---------------------------------- */
/* 2. REUSABLE COMPONENTS
/* ---------------------------------- */
.container {
    max-width: var(--container-width);
    margin: 0 auto;
    padding: 0 2rem;
}

h1,
h2,
h3,
h4 {
    color: var(--color-lightest-slate);
    font-weight: 800;
    line-height: 1.2;
}

h1 {
    font-size: var(--h1-size);
}

h2 {
    font-size: var(--h2-size);
}

h3 {
    font-size: var(--h3-size);
}

p {
    margin-bottom: 1rem;
}

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

a:hover {
    opacity: 0.8;
}

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

.btn {
    display: inline-block;
    padding: 0.75rem 1.75rem;
    border-radius: var(--border-radius);
    font-weight: 500;
    cursor: pointer;
    transition: var(--transition);
    border: 1px solid var(--color-accent);
    text-align: center;
}

.btn-primary {
    background-color: var(--color-accent);
    color: var(--color-dark-navy);
}

.btn-primary:hover {
    background-color: transparent;
    color: var(--color-accent);
}

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

.btn-outline:hover {
    background-color: var(--color-accent-tint);
}

.section-header {
    text-align: center;
    margin-bottom: 4rem;
}

.section-header .subtitle {
    display: block;
    color: var(--color-accent);
    font-weight: 500;
    margin-bottom: 0.5rem;
}

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

/* ---------------------------------- */
/* 3. HEADER & NAVIGATION
/* ---------------------------------- */
.site-header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 100;
    height: var(--header-height);
    background-color: rgba(0, 0, 0, 0.85);
    backdrop-filter: blur(10px);
    transition: height 0.3s ease-in-out, box-shadow 0.3s ease-in-out;
}

.site-header.scrolled {
    height: var(--header-scroll-height);
    box-shadow: 0 10px 30px -10px rgba(0, 0, 0, 0.7);
}

.header-nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 100%;
}

.logo {
    display: flex;
    align-items: center;
    font-weight: 700;
    font-size: 1.5rem;
    color: var(--color-white);
}

.logo img {
    height: 45px;
    filter: brightness(0) invert(1);
    margin-right: 10px;
}

.nav-menu {
    display: flex;
    align-items: center;
    list-style: none;
    gap: 2.5rem;
}

.nav-link {
    color: var(--color-lightest-slate);
    font-weight: 500;
    padding: 10px 0;
    position: relative;
}

.nav-link::before {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 2px;
    background-color: var(--color-accent);
    transform: scaleX(0);
    transition: transform 0.3s ease;
}

.nav-link:hover::before,
.nav-link.active::before {
    transform: scaleX(1);
}

.hamburger {
    display: none;
    cursor: pointer;
    background: none;
    border: none;
}

.hamburger .bar {
    display: block;
    width: 25px;
    height: 2px;
    margin: 5px auto;
    background-color: var(--color-accent);
    transition: all 0.3s ease-in-out;
}

/* ---------------------------------- */
/* 4. HERO SECTION
/* ---------------------------------- */
.hero {
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
    height: 100vh;
    min-height: 700px;
    text-align: center;
}

#particle-canvas {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -1;
}

.hero-content {
    opacity: 0;
    animation: fadeIn 1s 0.5s forwards;
}

.hero-title {
    margin-bottom: 1.5rem;
}

.hero-title .line {
    display: block;
}

.hero-subtitle {
    font-size: 1.25rem;
    color: var(--color-light-slate);
    max-width: 700px;
    margin: 0 auto 2.5rem auto;
}

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

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* ---------------------------------- */
/* 5. SERVICES SECTION
/* ---------------------------------- */
.services-section {
    padding: var(--section-padding);
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 1.5rem;
}

.service-card {
    background-color: var(--color-light-navy);
    padding: 2rem;
    border-radius: var(--border-radius);
    transition: var(--transition);
    position: relative;
    top: 0;
}

.service-card:hover {
    top: -10px;
    box-shadow: 0 10px 30px -15px rgba(0, 0, 0, 0.7);
}

.service-icon {
    color: var(--color-accent);
    margin-bottom: 1.5rem;
}

.service-icon svg {
    width: 40px;
    height: 40px;
    stroke-width: 1.5;
}

.service-card h3 {
    margin-bottom: 1rem;
    font-size: 1.25rem;
}

/* ---------------------------------- */
/* 6. PROCESS SECTION
/* ---------------------------------- */
.process-section {
    padding: var(--section-padding);
    background-color: var(--color-light-navy);
}

.process-timeline {
    position: relative;
    max-width: 800px;
    margin: 0 auto;
}

.process-timeline::after {
    content: '';
    position: absolute;
    width: 2px;
    background-color: var(--color-lightest-navy);
    top: 0;
    bottom: 0;
    left: 40px;
}

.process-step {
    padding-left: 100px;
    position: relative;
    margin-bottom: 3rem;
}

.process-step:last-child {
    margin-bottom: 0;
}

.step-number {
    position: absolute;
    left: 0;
    top: -5px;
    width: 80px;
    height: 80px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
    font-weight: 800;
    color: var(--color-accent);
    background-color: var(--color-dark-navy);
    border: 2px solid var(--color-lightest-navy);
    border-radius: 50%;
    z-index: 1;
}

.step-content h3 {
    color: var(--color-accent);
    margin-bottom: 0.5rem;
}

/* ---------------------------------- */
/* 7. INTERACTIVE REPORT SECTION
/* ---------------------------------- */
.report-section {
    padding: var(--section-padding);
}

.report-dashboard {
    background-color: var(--color-light-navy);
    border-radius: var(--border-radius);
    border: 1px solid var(--color-lightest-navy);
    overflow: hidden;
}

.report-tabs {
    display: flex;
    background-color: var(--color-dark-navy);
}

.tab-link {
    flex: 1;
    padding: 1rem;
    background: none;
    border: none;
    color: var(--color-slate);
    font-size: 1rem;
    font-weight: 500;
    cursor: pointer;
    transition: var(--transition);
    border-bottom: 2px solid transparent;
}

.tab-link:hover {
    background-color: var(--color-lightest-navy-tint);
    color: var(--color-accent);
}

.tab-link.active {
    color: var(--color-accent);
    border-bottom-color: var(--color-accent);
}

.report-content .tab-content {
    display: none;
    padding: 2rem;
    grid-template-columns: repeat(4, 1fr);
    gap: 1.5rem;
}

.report-content .tab-content.active {
    display: grid;
}

.stat-card {
    background-color: var(--color-dark-navy);
    padding: 1.5rem;
    border-radius: var(--border-radius);
}

.stat-card h4 {
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--color-slate);
    margin-bottom: 0.5rem;
}

.stat-value {
    display: block;
    font-size: 2rem;
    font-weight: 800;
    color: var(--color-white);
}

.stat-change {
    font-weight: 500;
}

.stat-change.positive {
    color: #34d399;
}

.stat-change.negative {
    color: #f87171;
}

.stat-change.neutral {
    color: var(--color-slate);
}

.chart-placeholder {
    grid-column: 1 / -1;
    background-color: var(--color-dark-navy);
    padding: 1.5rem;
    border-radius: var(--border-radius);
}

.chart-placeholder h4 {
    font-size: 1rem;
    margin-bottom: 1.5rem;
}

.bar-chart {
    display: flex;
    justify-content: space-around;
    align-items: flex-end;
    height: 150px;
    gap: 1rem;
}

.bar {
    flex: 1;
    background-image: linear-gradient(to top, var(--color-accent), #00c7a1);
    border-radius: 4px 4px 0 0;
    position: relative;
    transition: height 0.5s ease-out;
}

.bar span {
    position: absolute;
    bottom: -25px;
    left: 50%;
    transform: translateX(-50%);
    font-size: 0.8rem;
    color: var(--color-slate);
}

/* ---------------------------------- */
/* 8. TESTIMONIALS SECTION
/* ---------------------------------- */
.testimonials-section {
    padding: var(--section-padding);
    background-color: var(--color-light-navy);
}

.testimonial-slider-container {
    max-width: 800px;
    margin: 0 auto;
    position: relative;
}

.testimonial-slider {
    overflow: hidden;
    position: relative;
    height: 220px;
}

.testimonial-slide {
    position: absolute;
    width: 100%;
    height: 100%;
    opacity: 0;
    transition: opacity 0.5s ease;
    text-align: center;
}

.testimonial-slide.active {
    opacity: 1;
}

.testimonial-slide blockquote {
    font-size: 1.4rem;
    font-weight: 500;
    color: var(--color-lightest-slate);
    margin-bottom: 1.5rem;
    position: relative;
}

.testimonial-slide blockquote::before {
    content: '“';
    font-size: 5rem;
    color: var(--color-accent);
    position: absolute;
    top: -2rem;
    left: 50%;
    transform: translateX(-50%);
    opacity: 0.2;
}

.testimonial-slide cite {
    font-style: normal;
    color: var(--color-slate);
}

.testimonial-slide cite span {
    font-weight: 700;
    color: var(--color-white);
}

.slider-nav {
    display: flex;
    justify-content: center;
    align-items: center;
    margin-top: 2rem;
    gap: 1.5rem;
}

.slider-arrow {
    background: none;
    border: 1px solid var(--color-lightest-navy);
    color: var(--color-lightest-slate);
    width: 40px;
    height: 40px;
    border-radius: 50%;
    cursor: pointer;
    font-size: 1.2rem;
    transition: var(--transition);
}

.slider-arrow:hover {
    background-color: var(--color-accent-tint);
    border-color: var(--color-accent);
}

.slider-dots {
    display: flex;
    gap: 10px;
}

.dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background-color: var(--color-lightest-navy);
    cursor: pointer;
    transition: var(--transition);
}

.dot.active {
    background-color: var(--color-accent);
    transform: scale(1.2);
}

/* ---------------------------------- */
/* 9. CTA SECTION
/* ---------------------------------- */
.cta-section {
    padding: var(--section-padding);
    text-align: center;
}

.cta-section .container {
    max-width: 700px;
}

.cta-section h2 {
    margin-bottom: 1rem;
}

.cta-section p {
    margin-bottom: 2rem;
    font-size: 1.1rem;
}

.cta-section .btn {
    padding: 1rem 3rem;
    font-size: 1.1rem;
}

/* ---------------------------------- */
/* 10. FOOTER
/* ---------------------------------- */
.site-footer {
    padding: 4rem 0 2rem;
    border-top: 1px solid var(--color-lightest-navy);
}

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

.footer-column h4 {
    color: var(--color-white);
    font-size: 1.1rem;
    margin-bottom: 1rem;
}

.footer-column ul {
    list-style: none;
}

.footer-column li {
    margin-bottom: 0.5rem;
}

.footer-column a {
    color: var(--color-slate);
}

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

.footer-about .logo {
    margin-bottom: 1rem;
}

.footer-about p {
    max-width: 300px;
}

.footer-contact address {
    font-style: normal;
}

.footer-contact address a,
.footer-contact address p {
    display: block;
    margin-bottom: 0.5rem;
}

.footer-bottom {
    text-align: center;
    color: var(--color-slate);
    font-size: 0.9rem;
}

/* ---------------------------------- */
/* 11. OTHER PAGES (Contact, Legal)
/* ---------------------------------- */
.page-header-section {
    padding: calc(var(--header-height) + 50px) 0 50px;
    text-align: center;
    background-color: var(--color-light-navy);
}

.page-header-section h1 {
    font-size: var(--h2-size);
}

.page-header-section p {
    font-size: 1.2rem;
    color: var(--color-light-slate);
    max-width: 600px;
    margin: 1rem auto 0;
}

.contact-section {
    padding: var(--section-padding);
}

.contact-grid {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 4rem;
}

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

.contact-form label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 500;
}

.contact-form input,
.contact-form textarea {
    width: 100%;
    background-color: var(--color-light-navy);
    border: 1px solid var(--color-lightest-navy);
    border-radius: var(--border-radius);
    padding: 0.75rem 1rem;
    color: var(--color-white);
    font-size: 1rem;
    transition: var(--transition);
}

.contact-form input:focus,
.contact-form textarea:focus {
    outline: none;
    border-color: var(--color-accent);
    box-shadow: 0 0 0 3px var(--color-accent-tint);
}

.contact-info-wrapper h3 {
    margin-bottom: 1rem;
}

.contact-info-item {
    margin-top: 2rem;
}

.contact-info-item h4 {
    color: var(--color-accent);
    font-size: 1rem;
}

.contact-info-item p,
.contact-info-item a {
    color: var(--color-light-slate);
}

.legal-content-section {
    padding: var(--section-padding);
}

.legal-content {
    max-width: 800px;
}

.legal-content h2 {
    font-size: 1.8rem;
    color: var(--color-accent);
    margin-top: 2.5rem;
    margin-bottom: 1rem;
}

.legal-content ul {
    margin-left: 1.5rem;
    margin-bottom: 1rem;
}

/* ---------------------------------- */
/* 12. SCROLL ANIMATIONS
/* ---------------------------------- */
.animate-on-scroll {
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.5s ease-out, transform 0.5s ease-out;
    transition-delay: 0.2s;
}

.animate-on-scroll.visible {
    opacity: 1;
    transform: translateY(0);
}

/* Staggered animations */
.services-grid .animate-on-scroll:nth-child(2) {
    transition-delay: 0.3s;
}

.services-grid .animate-on-scroll:nth-child(3) {
    transition-delay: 0.4s;
}

.services-grid .animate-on-scroll:nth-child(4) {
    transition-delay: 0.5s;
}

.process-step.animate-on-scroll:nth-child(1) {
    transition-delay: 0.2s;
}

.process-step.animate-on-scroll:nth-child(2) {
    transition-delay: 0.3s;
}

.process-step.animate-on-scroll:nth-child(3) {
    transition-delay: 0.4s;
}

.process-step.animate-on-scroll:nth-child(4) {
    transition-delay: 0.5s;
}

/* ---------------------------------- */
/* 13. RESPONSIVENESS
/* ---------------------------------- */
@media (max-width: 1024px) {
    .footer-main {
        grid-template-columns: 1fr 1fr;
    }

    .footer-about {
        grid-column: 1 / -1;
    }
}

@media (max-width: 768px) {

    /* Mobile Navigation */
    .nav-menu {
        position: fixed;
        top: 0;
        right: -100%;
        width: min(75vw, 400px);
        height: 100vh;
        flex-direction: column;
        justify-content: center;
        align-items: flex-start;
        background-color: var(--color-light-navy);
        padding: 2rem;
        gap: 2rem;
        transition: right 0.4s ease-in-out;
        box-shadow: -10px 0px 30px -15px rgba(0, 0, 0, 0.7);
    }

    .nav-menu.active {
        right: 0;
    }

    .header-cta {
        display: none;
    }

    .hamburger {
        display: block;
        z-index: 101;
    }

    .hamburger.active .bar:nth-child(2) {
        opacity: 0;
    }

    .hamburger.active .bar:nth-child(1) {
        transform: translateY(7px) rotate(45deg);
    }

    .hamburger.active .bar:nth-child(3) {
        transform: translateY(-7px) rotate(-45deg);
    }

    /* General Layout */
    .report-content .tab-content {
        grid-template-columns: 1fr 1fr;
    }

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

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

    .footer-about p {
        margin: 0 auto 1rem auto;
    }

    .process-timeline::after {
        left: 20px;
    }

    .process-step {
        padding-left: 60px;
    }

    .step-number {
        width: 40px;
        height: 40px;
        font-size: 1rem;
    }
}

@media (max-width: 480px) {
    .report-content .tab-content {
        grid-template-columns: 1fr;
    }
}