/* ==========================================================================
   1. ROOT VARIABLES & THEME SETUP
   ========================================================================== */
:root {
    /* Color Palette - Based on a Professional Digital Marketing Theme */
    --primary-color: #4f46e5;
    /* Indigo 600 */
    --primary-dark: #3730a3;
    /* Indigo 800 */
    --primary-light: #818cf8;
    /* Indigo 400 */

    --secondary-color: #06b6d4;
    /* Cyan 500 */
    --secondary-dark: #0891b2;
    /* Cyan 600 */

    --accent-color: #f59e0b;
    /* Amber 500 */

    --bg-dark: #0f172a;
    /* Slate 900 */
    --bg-darker: #020617;
    /* Slate 950 */
    --bg-light: #f8fafc;
    /* Slate 50 */
    --bg-white: #ffffff;

    --text-main: #334155;
    /* Slate 700 */
    --text-light: #64748b;
    /* Slate 500 */
    --text-white: #f1f5f9;
    /* Slate 100 */

    /* Typography */
    --font-main: 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
    --font-heading: 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;

    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 2rem;
    --spacing-lg: 4rem;
    --spacing-xl: 8rem;

    /* Borders & Shadows */
    --radius-sm: 4px;
    --radius-md: 8px;
    --radius-lg: 16px;
    --radius-full: 9999px;

    --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.12), 0 1px 2px rgba(0, 0, 0, 0.24);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    --shadow-neon: 0 0 15px rgba(79, 70, 229, 0.5);

    /* Transitions */
    --transition-fast: all 0.2s ease-in-out;
    --transition-normal: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slow: all 0.5s cubic-bezier(0.4, 0, 0.2, 1);
}

/* ==========================================================================
   2. RESET & BASE STYLES
   ========================================================================== */
*,
*::before,
*::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

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

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

h1,
h2,
h3,
h4,
h5,
h6 {
    font-family: var(--font-heading);
    color: var(--bg-dark);
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: var(--spacing-sm);
}

h1 {
    font-size: 3.5rem;
}

h2 {
    font-size: 2.5rem;
}

h3 {
    font-size: 1.75rem;
}

h4 {
    font-size: 1.5rem;
}

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

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

ul {
    list-style: none;
}

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

/* Utility Classes */
.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

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

.text-right {
    text-align: right;
}

.text-primary {
    color: var(--primary-color);
}

.text-gradient {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

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

.bg-light {
    background-color: var(--bg-light);
}

.bg-dark {
    background-color: var(--bg-dark);
    color: var(--text-white);
}

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

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

@keyframes slideInLeft {
    from {
        opacity: 0;
        transform: translateX(-50px);
    }

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

@keyframes slideInRight {
    from {
        opacity: 0;
        transform: translateX(50px);
    }

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

@keyframes float {
    0% {
        transform: translateY(0px);
    }

    50% {
        transform: translateY(-15px);
    }

    100% {
        transform: translateY(0px);
    }
}

@keyframes pulse-glow {
    0% {
        box-shadow: 0 0 0 0 rgba(79, 70, 229, 0.4);
    }

    70% {
        box-shadow: 0 0 0 10px rgba(79, 70, 229, 0);
    }

    100% {
        box-shadow: 0 0 0 0 rgba(79, 70, 229, 0);
    }
}

@keyframes spin-slow {
    from {
        transform: rotate(0deg);
    }

    to {
        transform: rotate(360deg);
    }
}

.fade-in-scroll {
    opacity: 0;
    transition: opacity 0.8s ease-out, transform 0.8s ease-out;
    transform: translateY(30px);
}

.fade-in-scroll.visible {
    opacity: 1;
    transform: translateY(0);
}

/* ==========================================================================
   4. BUTTON STYLES
   ========================================================================== */
.btn {
    display: inline-block;
    padding: 12px 32px;
    font-weight: 600;
    border-radius: var(--radius-full);
    cursor: pointer;
    text-transform: uppercase;
    font-size: 0.9rem;
    letter-spacing: 1px;
    position: relative;
    overflow: hidden;
    z-index: 1;
    transition: var(--transition-normal);
    border: none;
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
    color: var(--text-white);
    box-shadow: var(--shadow-md);
}

.btn-primary::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 0%;
    height: 100%;
    background: var(--secondary-color);
    z-index: -1;
    transition: width 0.3s ease;
}

.btn-primary:hover::before {
    width: 100%;
}

.btn-primary:hover {
    box-shadow: var(--shadow-neon);
    transform: translateY(-2px);
}

.btn-secondary {
    background: transparent;
    border: 2px solid var(--primary-color);
    color: var(--primary-color);
}

.btn-secondary:hover {
    background: var(--primary-color);
    color: var(--text-white);
}

.btn-large {
    padding: 16px 48px;
    font-size: 1.1rem;
}

/* ==========================================================================
   5. HEADER & NAVIGATION
   ========================================================================== */
.main-header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    background-color: var(--bg-dark);
    transition: var(--transition-normal);
    padding: 15px 0;
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

.main-header.scrolled {
    padding: 10px 0;
    background-color: rgba(15, 23, 42, 0.95);
    backdrop-filter: blur(10px);
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
}

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

.logo-container a {
    display: flex;
    align-items: center;
}

.logo-img {
    height: 50px;
    width: auto;
    filter: invert(1);
}

.main-nav ul {
    display: flex;
    gap: var(--spacing-md);
}

.main-nav a {
    color: var(--text-white);
    font-weight: 500;
    font-size: 0.95rem;
    position: relative;
    padding: 5px 0;
}

.main-nav a::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background-color: var(--secondary-color);
    transition: width 0.3s ease;
}

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

.mobile-toggle {
    display: none;
    font-size: 1.5rem;
    color: var(--text-white);
    cursor: pointer;
}

/* ==========================================================================
   6. HERO SECTION
   ========================================================================== */
.hero-section {
    position: relative;
    height: 100vh;
    min-height: 700px;
    display: flex;
    align-items: center;
    background-color: var(--bg-dark);
    overflow: hidden;
    padding-top: 80px;
}

/* Background Animation Placeholder using CSS Gradients */
.hero-bg-effect {
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle at center, rgba(79, 70, 229, 0.15) 0%, transparent 50%),
        radial-gradient(circle at 80% 20%, rgba(6, 182, 212, 0.1) 0%, transparent 40%);
    animation: spin-slow 60s linear infinite;
    z-index: 1;
}

.hero-content {
    position: relative;
    z-index: 10;
    max-width: 800px;
}

.hero-tag {
    display: inline-block;
    padding: 8px 16px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-full);
    color: var(--secondary-color);
    font-weight: 600;
    font-size: 0.9rem;
    margin-bottom: var(--spacing-sm);
    backdrop-filter: blur(5px);
    border: 1px solid rgba(255, 255, 255, 0.1);
    animation: fadeIn 1s ease-out;
}

.hero-title {
    font-size: 4rem;
    color: var(--text-white);
    margin-bottom: var(--spacing-md);
    line-height: 1.1;
    animation: slideInLeft 1s ease-out 0.2s backwards;
}

.hero-description {
    font-size: 1.25rem;
    color: var(--text-light);
    margin-bottom: var(--spacing-lg);
    max-width: 600px;
    animation: slideInLeft 1s ease-out 0.4s backwards;
}

.hero-buttons {
    display: flex;
    gap: var(--spacing-sm);
    animation: fadeIn 1s ease-out 0.6s backwards;
}

/* Floating Elements in Hero */
.hero-visual {
    position: absolute;
    right: 5%;
    top: 50%;
    transform: translateY(-50%);
    width: 45%;
    height: 60%;
    z-index: 5;
    display: none;
    /* Hidden on small screens, shown on desktop */
}

/* Abstract shapes */
.shape {
    position: absolute;
    border-radius: 50%;
    filter: blur(80px);
}

.shape-1 {
    top: 20%;
    right: 10%;
    width: 300px;
    height: 300px;
    background: rgba(79, 70, 229, 0.3);
    animation: float 6s ease-in-out infinite;
}

.shape-2 {
    bottom: 10%;
    left: 10%;
    width: 200px;
    height: 200px;
    background: rgba(6, 182, 212, 0.2);
    animation: float 8s ease-in-out infinite reverse;
}

/* ==========================================================================
   7. SECTIONS & COMPONENTS
   ========================================================================== */

/* Section Headers */
.section-header {
    text-align: center;
    max-width: 700px;
    margin: 0 auto var(--spacing-xl);
}

.section-subtitle {
    color: var(--primary-color);
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 2px;
    font-size: 0.9rem;
    display: block;
    margin-bottom: var(--spacing-xs);
}

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

.service-card {
    background: var(--bg-white);
    padding: var(--spacing-md);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
    transition: var(--transition-normal);
    border: 1px solid rgba(0, 0, 0, 0.05);
    position: relative;
    overflow: hidden;
    z-index: 1;
}

.service-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 0;
    height: 100%;
    background: var(--bg-dark);
    z-index: -1;
    transition: width 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

.service-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-lg);
}

.service-card:hover::before {
    width: 100%;
}

.service-icon {
    font-size: 2.5rem;
    color: var(--primary-color);
    margin-bottom: var(--spacing-sm);
    transition: var(--transition-normal);
}

.service-card:hover .service-icon,
.service-card:hover h3,
.service-card:hover p {
    color: var(--text-white);
}

.service-card:hover .service-link {
    color: var(--secondary-color);
}

.service-link {
    display: inline-flex;
    align-items: center;
    margin-top: var(--spacing-sm);
    font-weight: 600;
    color: var(--primary-color);
}

.service-link span {
    margin-left: 5px;
    transition: margin 0.2s;
}

.service-link:hover span {
    margin-left: 10px;
}

/* Statistics Section */
.stats-section {
    background: var(--bg-dark);
    color: var(--text-white);
    position: relative;
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--spacing-lg);
    text-align: center;
}

.stat-item h3 {
    font-size: 3.5rem;
    color: var(--secondary-color);
    margin-bottom: 0;
}

.stat-item p {
    font-size: 1.1rem;
    color: var(--text-light);
}

/* Calculator Section (Interactive) */
.calculator-wrapper {
    background: var(--bg-white);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
    padding: var(--spacing-lg);
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-lg);
    border-top: 5px solid var(--primary-color);
}

.calc-inputs label {
    display: block;
    margin-bottom: 8px;
    font-weight: 600;
    color: var(--text-main);
}

.input-group {
    margin-bottom: var(--spacing-md);
    position: relative;
}

.input-group input {
    width: 100%;
    padding: 12px 16px;
    border: 2px solid #e2e8f0;
    border-radius: var(--radius-md);
    font-size: 1rem;
    transition: var(--transition-fast);
}

.input-group input:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(79, 70, 229, 0.1);
}

.calc-results {
    background: var(--bg-dark);
    color: var(--text-white);
    border-radius: var(--radius-md);
    padding: var(--spacing-md);
    display: flex;
    flex-direction: column;
    justify-content: center;
    position: relative;
    overflow: hidden;
}

.result-box {
    margin-bottom: var(--spacing-md);
    text-align: center;
    z-index: 2;
}

.result-box:last-child {
    margin-bottom: 0;
}

.result-label {
    display: block;
    font-size: 0.9rem;
    text-transform: uppercase;
    letter-spacing: 1px;
    color: var(--text-light);
    margin-bottom: 5px;
}

.result-value {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--secondary-color);
}

/* Sample Campaign Report (CSS Chart) */
.report-sample {
    margin-top: var(--spacing-xl);
    background: var(--bg-white);
    padding: var(--spacing-md);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
}

.chart-container {
    display: flex;
    align-items: flex-end;
    justify-content: space-around;
    height: 300px;
    padding-top: var(--spacing-md);
    border-bottom: 2px solid #e2e8f0;
}

.bar {
    width: 40px;
    background: linear-gradient(to top, var(--primary-color), var(--primary-light));
    border-radius: 4px 4px 0 0;
    position: relative;
    transition: height 1s ease-out;
    cursor: pointer;
}

.bar::before {
    content: attr(data-value);
    position: absolute;
    top: -25px;
    left: 50%;
    transform: translateX(-50%);
    font-size: 0.8rem;
    font-weight: bold;
    opacity: 0;
    transition: opacity 0.3s;
}

.bar:hover::before {
    opacity: 1;
}

.bar:hover {
    background: var(--secondary-color);
}

.bar-label {
    text-align: center;
    margin-top: 10px;
    font-size: 0.85rem;
    color: var(--text-light);
}

/* Testimonials */
.testimonial-card {
    background: var(--bg-white);
    padding: var(--spacing-md);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
    margin: var(--spacing-sm);
    text-align: center;
    border: 1px solid #eee;
}

.quote-icon {
    font-size: 3rem;
    color: var(--primary-light);
    opacity: 0.3;
    line-height: 1;
}

.client-info img {
    width: 60px;
    height: 60px;
    border-radius: 50%;
    margin: var(--spacing-sm) auto;
    object-fit: cover;
    border: 2px solid var(--secondary-color);
}

/* Contact Page Styles */
.contact-hero {
    background: var(--bg-dark);
    padding: 120px 0 60px;
    text-align: center;
    color: var(--text-white);
}

.contact-layout {
    display: grid;
    grid-template-columns: 1fr 1.5fr;
    gap: var(--spacing-xl);
    margin-top: var(--spacing-lg);
}

.contact-info-card {
    background: var(--bg-light);
    padding: var(--spacing-md);
    border-radius: var(--radius-md);
    margin-bottom: var(--spacing-md);
    display: flex;
    align-items: center;
    transition: transform 0.3s;
}

.contact-info-card:hover {
    transform: translateX(10px);
}

.info-icon {
    width: 50px;
    height: 50px;
    background: var(--primary-color);
    color: var(--text-white);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-right: var(--spacing-md);
    font-size: 1.2rem;
}

.contact-form {
    background: var(--bg-white);
    padding: var(--spacing-lg);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
}

textarea {
    width: 100%;
    padding: 12px 16px;
    border: 2px solid #e2e8f0;
    border-radius: var(--radius-md);
    min-height: 150px;
    resize: vertical;
    font-family: var(--font-main);
}

textarea:focus {
    outline: none;
    border-color: var(--primary-color);
}

/* Legal Pages */
.legal-content {
    max-width: 900px;
    margin: 0 auto;
    background: var(--bg-white);
    padding: var(--spacing-lg);
    box-shadow: var(--shadow-sm);
    border-radius: var(--radius-md);
    margin-bottom: var(--spacing-xl);
}

.legal-content h2 {
    margin-top: var(--spacing-md);
    font-size: 1.8rem;
}

.legal-content p,
.legal-content li {
    margin-bottom: 1rem;
    color: var(--text-main);
}

.legal-content ul {
    list-style: disc;
    padding-left: 2rem;
    margin-bottom: 1rem;
}

/* ==========================================================================
   8. FOOTER
   ========================================================================== */
.main-footer {
    background-color: var(--bg-darker);
    color: var(--text-light);
    padding: var(--spacing-xl) 0 0;
    font-size: 0.95rem;
    border-top: 1px solid rgba(255, 255, 255, 0.05);
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1.5fr;
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-xl);
}

.footer-brand p {
    margin-top: var(--spacing-sm);
    max-width: 300px;
}

.footer-col h4 {
    color: var(--text-white);
    margin-bottom: var(--spacing-md);
    font-size: 1.2rem;
}

.footer-links li {
    margin-bottom: 10px;
}

.footer-links a {
    transition: color 0.2s;
}

.footer-links a:hover {
    color: var(--secondary-color);
    padding-left: 5px;
}

.footer-bottom {
    background-color: #000;
    padding: var(--spacing-md) 0;
    text-align: center;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

/* ==========================================================================
   9. RESPONSIVE DESIGN (MEDIA QUERIES)
   ========================================================================== */
@media (max-width: 1024px) {
    .hero-title {
        font-size: 3rem;
    }

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

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

    .hero-visual {
        display: none;
    }
}

@media (max-width: 768px) {
    .mobile-toggle {
        display: block;
    }

    .main-nav {
        position: fixed;
        top: 70px;
        left: 0;
        width: 100%;
        background: var(--bg-dark);
        padding: 20px;
        transform: translateY(-150%);
        transition: transform 0.4s ease;
        box-shadow: 0 10px 10px rgba(0, 0, 0, 0.1);
    }

    .main-nav.active {
        transform: translateY(0);
    }

    .main-nav ul {
        flex-direction: column;
        align-items: center;
        gap: 20px;
    }

    .hero-section {
        text-align: center;
        justify-content: center;
        padding-top: 100px;
        height: auto;
        padding-bottom: 100px;
    }

    .hero-content {
        margin: 0 auto;
    }

    .hero-buttons {
        justify-content: center;
    }

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

    .chart-container {
        overflow-x: auto;
        justify-content: flex-start;
        gap: 20px;
    }
}

@media (max-width: 480px) {
    .hero-title {
        font-size: 2.2rem;
    }

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

    .footer-brand {
        align-items: center;
        display: flex;
        flex-direction: column;
    }

    .btn-large {
        padding: 12px 24px;
        width: 100%;
        text-align: center;
        margin-bottom: 10px;
    }

    .hero-buttons {
        flex-direction: column;
    }
}