/* ================================
   Elevate Star - Marketing Agency
   ================================ */

/* CSS Variables */
:root {
    --primary: #8C92AC;
    --primary-dark: #6B7394;
    --primary-light: #A8ADBF;
    --secondary: #10B981;
    --accent: #4AACDC;
    --dark: #5A5F7A;
    --dark-light: #6B7394;
    --gray: #8C92AC;
    --gray-light: #A8ADBF;
    --light: #F3F4F6;
    --lighter: #F9FAFB;
    --white: #FFFFFF;
    --gradient: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 100%);
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow: 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-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
    --radius: 8px;
    --radius-lg: 16px;
    --transition: all 0.3s ease;
}

/* Reset & Base Styles */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    font-size: 16px;
    line-height: 1.6;
    color: var(--dark);
    background-color: var(--white);
}

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

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

ul {
    list-style: none;
}

/* Container */
.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
    font-weight: 700;
    line-height: 1.2;
    color: var(--dark);
}

h1 { font-size: clamp(2.5rem, 5vw, 3.5rem); }
h2 { font-size: clamp(2rem, 4vw, 2.75rem); }
h3 { font-size: 1.5rem; }
h4 { font-size: 1.25rem; }

.highlight {
    color: #4AACDC;
}

.section-tag {
    display: inline-block;
    font-size: 0.875rem;
    font-weight: 600;
    color: #4AACDC;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: 12px;
}

.section-header {
    text-align: center;
    max-width: 700px;
    margin: 0 auto 60px;
}

.section-header p {
    color: var(--gray);
    font-size: 1.125rem;
    margin-top: 16px;
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 12px 24px;
    font-size: 1rem;
    font-weight: 600;
    border-radius: var(--radius);
    border: 2px solid transparent;
    cursor: pointer;
    transition: var(--transition);
}

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

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

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

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

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

.btn-light:hover {
    background: var(--lighter);
    transform: translateY(-2px);
}

.btn-large {
    padding: 16px 32px;
    font-size: 1.125rem;
}

.btn-full {
    width: 100%;
}

/* Navigation */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: rgba(140, 146, 172, 0.1);
    backdrop-filter: blur(8px);
    z-index: 1000;
    padding: 16px 0;
    box-shadow: none;
    transition: all 0.3s ease;
}

.navbar.scrolled {
    background: rgba(140, 146, 172, 0.3);
    backdrop-filter: blur(10px);
    box-shadow: var(--shadow-sm);
}

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

.logo {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 1.5rem;
    font-weight: 800;
    color: var(--dark);
    text-shadow: 0 1px 2px rgba(255, 255, 255, 0.8);
}

.logo-img {
    height: 40px;
    width: auto;
}

.logo-icon {
    color: #4AACDC;
    font-size: 1.25rem;
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 32px;
}

.nav-links a {
    font-weight: 600;
    color: var(--dark);
    text-shadow: 0 1px 2px rgba(255, 255, 255, 0.8);
}

.nav-links a:hover {
    color: #4AACDC;
}

.nav-links .btn {
    margin-left: 8px;
}

.nav-links .btn-primary {
    color: var(--white);
}

.mobile-menu-btn {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 5px;
}

.mobile-menu-btn span {
    display: block;
    width: 25px;
    height: 2px;
    background: var(--dark);
    transition: var(--transition);
}

/* Hero Section */
.hero {
    padding: 160px 0 100px;
    background: #f8f8f8;
    overflow: hidden;
}

.hero .container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.hero-content h1 {
    margin-bottom: 24px;
}

.hero-subtitle {
    font-size: 1.25rem;
    color: var(--gray);
    margin-bottom: 32px;
    max-width: 540px;
}

.hero-cta {
    display: flex;
    gap: 16px;
    margin-bottom: 48px;
}

.hero-stats {
    display: flex;
    gap: 40px;
}

.stat {
    display: flex;
    flex-direction: column;
}

.stat-number {
    font-size: 2rem;
    font-weight: 800;
    color: #4AACDC;
}

.stat-label {
    font-size: 0.875rem;
    color: var(--gray);
}

/* Hero Visual */
.hero-visual {
    display: flex;
    justify-content: center;
    align-items: center;
}

.hero-logo {
    max-width: 400px;
    width: 100%;
    height: auto;
    filter: drop-shadow(0 10px 30px rgba(0, 0, 0, 0.2));
}

.chart-bar:hover {
    transform: scaleY(1.05);
}

/* Services Section */
.services {
    padding: 100px 0;
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
}

.service-card {
    position: relative;
    padding: 40px 30px;
    background: var(--white);
    border: 1px solid var(--light);
    border-radius: var(--radius-lg);
    transition: var(--transition);
}

.service-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-xl);
    border-color: transparent;
}

.service-card.featured {
    background: var(--gradient);
    color: var(--white);
    border-color: transparent;
}

.service-card.featured h3,
.service-card.featured p,
.service-card.featured li {
    color: var(--white);
}

.featured-badge {
    position: absolute;
    top: -12px;
    right: 20px;
    background: var(--accent);
    color: var(--white);
    padding: 6px 16px;
    border-radius: 20px;
    font-size: 0.75rem;
    font-weight: 600;
}

.service-icon {
    font-size: 2.5rem;
    margin-bottom: 20px;
}

.service-card h3 {
    margin-bottom: 12px;
}

.service-card p {
    color: var(--gray);
    margin-bottom: 20px;
}

.service-features {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.service-features li {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 0.9rem;
    color: var(--gray);
}

.service-features li::before {
    content: "✓";
    color: var(--secondary);
    font-weight: 700;
}

.service-card.featured .service-features li::before {
    color: var(--white);
}

/* About Section */
.about {
    padding: 100px 0;
    background: var(--lighter);
}

.about .container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 80px;
    align-items: center;
}

.about-lead {
    font-size: 1.25rem;
    color: var(--dark);
    margin-bottom: 20px;
}

.about-content p {
    color: var(--gray);
    margin-bottom: 16px;
}

.about-features {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
    margin-top: 32px;
}

.about-feature {
    display: flex;
    align-items: center;
    gap: 12px;
    font-weight: 500;
}

.check-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 24px;
    height: 24px;
    background: var(--secondary);
    color: var(--white);
    border-radius: 50%;
    font-size: 0.75rem;
}

.about-image {
    display: flex;
    justify-content: center;
}

.image-placeholder {
    width: 100%;
    max-width: 450px;
    aspect-ratio: 4/3;
    background: var(--gradient);
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
}

.placeholder-content {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 12px;
    color: var(--white);
    font-weight: 600;
}

.placeholder-icon {
    font-size: 4rem;
}

/* Team Leaders */
.team-leaders {
    width: 100%;
    max-width: 450px;
    padding: 40px;
    background: var(--white);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-xl);
}

.team-leaders h3 {
    text-align: center;
    margin-bottom: 30px;
    color: var(--dark);
}

.leader-card {
    display: flex;
    align-items: center;
    gap: 16px;
    padding: 20px;
    background: var(--lighter);
    border-radius: var(--radius);
    margin-bottom: 16px;
    transition: var(--transition);
}

.leader-card:last-child {
    margin-bottom: 0;
}

.leader-card:hover {
    transform: translateX(8px);
    background: var(--light);
}

.leader-avatar {
    width: 60px;
    height: 60px;
    background: var(--gradient);
    color: var(--white);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 1.25rem;
}

.leader-info {
    display: flex;
    flex-direction: column;
}

.leader-name {
    font-weight: 600;
    color: var(--dark);
    font-size: 1.1rem;
}

.leader-title {
    font-size: 0.875rem;
    color: #4AACDC;
}

/* Results Section */
.results {
    padding: 100px 0;
}

.results-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 30px;
    margin-bottom: 80px;
}

.result-card {
    text-align: center;
    padding: 40px 20px;
    background: var(--lighter);
    border-radius: var(--radius-lg);
}

.result-number {
    display: block;
    font-size: 2.5rem;
    font-weight: 800;
    color: #4AACDC;
    margin-bottom: 8px;
}

.result-label {
    color: var(--gray);
    font-size: 0.9rem;
}

.case-studies h3 {
    text-align: center;
    margin-bottom: 40px;
}

.case-study-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
}

.case-study {
    padding: 30px;
    background: var(--white);
    border: 1px solid var(--light);
    border-radius: var(--radius-lg);
    transition: var(--transition);
}

.case-study:hover {
    box-shadow: var(--shadow-lg);
    border-color: transparent;
}

.case-study-header {
    margin-bottom: 16px;
}

.industry-tag {
    display: inline-block;
    padding: 4px 12px;
    background: var(--primary-light);
    color: var(--white);
    border-radius: 20px;
    font-size: 0.75rem;
    font-weight: 600;
    margin-bottom: 8px;
}

.case-study h4 {
    color: var(--dark);
}

.case-study p {
    color: var(--gray);
    margin-bottom: 20px;
}

.case-study-stats {
    display: flex;
    gap: 24px;
}

.case-stat {
    display: flex;
    flex-direction: column;
}

.stat-value {
    font-size: 1.5rem;
    font-weight: 700;
    color: #4AACDC;
}

.stat-desc {
    font-size: 0.75rem;
    color: var(--gray);
}

/* Testimonials Section */
.testimonials {
    padding: 100px 0;
    background: var(--lighter);
}

.testimonials-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
}

.testimonial-card {
    padding: 40px 30px;
    background: var(--white);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow);
}

.stars {
    color: var(--accent);
    font-size: 1.25rem;
    margin-bottom: 20px;
}

.testimonial-text {
    color: var(--dark);
    font-size: 1.1rem;
    line-height: 1.7;
    margin-bottom: 24px;
}

.testimonial-author {
    display: flex;
    align-items: center;
    gap: 16px;
}

.author-avatar {
    width: 50px;
    height: 50px;
    background: var(--gradient);
    color: var(--white);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
}

.author-info {
    display: flex;
    flex-direction: column;
}

.author-name {
    font-weight: 600;
    color: var(--dark);
}

.author-title {
    font-size: 0.875rem;
    color: var(--gray);
}

/* CTA Section */
.cta {
    padding: 100px 0;
    background: var(--gradient);
}

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

.cta h2 {
    color: var(--white);
    margin-bottom: 20px;
}

.cta .highlight {
    color: var(--accent);
}

.cta p {
    color: rgba(255, 255, 255, 0.9);
    font-size: 1.25rem;
    margin-bottom: 32px;
}

/* Contact Section */
.contact {
    padding: 100px 0;
}

.contact-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 80px;
}

.contact-info h2 {
    margin-bottom: 20px;
}

.contact-info > p {
    color: var(--gray);
    margin-bottom: 40px;
}

.contact-details {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.contact-item {
    display: flex;
    align-items: center;
    gap: 16px;
    font-size: 1.1rem;
}

.contact-icon {
    font-size: 1.5rem;
}

.contact-form {
    padding: 40px;
    background: var(--lighter);
    border-radius: var(--radius-lg);
}

.form-group {
    margin-bottom: 24px;
}

.form-group label {
    display: block;
    font-weight: 500;
    margin-bottom: 8px;
    color: var(--dark);
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 14px 18px;
    font-size: 1rem;
    font-family: inherit;
    border: 2px solid var(--light);
    border-radius: var(--radius);
    transition: var(--transition);
    background: var(--white);
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary);
}

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

/* Footer */
.footer {
    background: #8C92AC;
    color: var(--white);
    padding: 80px 0 30px;
}

.footer-content {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1.5fr;
    gap: 60px;
    margin-bottom: 60px;
}

.footer-brand .logo {
    color: var(--white);
    margin-bottom: 20px;
}

.footer-brand .logo-img {
    height: 50px;
}

.footer-brand p {
    color: var(--white);
    max-width: 300px;
}

.footer-links h4,
.footer-newsletter h4 {
    color: var(--white);
    margin-bottom: 24px;
}

.footer-links ul {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

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

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

.footer-newsletter p {
    color: var(--white);
    margin-bottom: 20px;
}

.newsletter-form {
    display: flex;
    gap: 12px;
}

.newsletter-form input {
    flex: 1;
    padding: 12px 16px;
    border: none;
    border-radius: var(--radius);
    font-size: 0.9rem;
}

.footer-bottom {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: 30px;
    border-top: 1px solid var(--dark-light);
}

.footer-bottom p {
    color: var(--white);
}

.social-links {
    display: flex;
    gap: 20px;
}

.social-links a {
    color: var(--white);
    font-weight: 600;
}

.social-links a:hover {
    color: var(--primary-light);
}

/* Responsive Design */
@media (max-width: 1024px) {
    .services-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .results-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .case-study-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .testimonials-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .footer-content {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .nav-links {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        flex-direction: column;
        background: var(--white);
        padding: 20px;
        box-shadow: var(--shadow-lg);
        gap: 16px;
    }

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

    .mobile-menu-btn {
        display: flex;
    }

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

    .hero-subtitle {
        margin: 0 auto 32px;
    }

    .hero-cta {
        justify-content: center;
        flex-wrap: wrap;
    }

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

    .hero-visual {
        display: none;
    }

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

    .about .container {
        grid-template-columns: 1fr;
    }

    .about-image {
        order: -1;
    }

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

    .case-study-grid {
        grid-template-columns: 1fr;
    }

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

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

    .footer-content {
        grid-template-columns: 1fr;
        gap: 40px;
    }

    .footer-bottom {
        flex-direction: column;
        gap: 20px;
        text-align: center;
    }
}

@media (max-width: 480px) {
    .hero-stats {
        flex-direction: column;
        gap: 24px;
    }

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

    .hero-cta .btn {
        width: 100%;
    }

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

    .about-features {
        grid-template-columns: 1fr;
    }

    .newsletter-form {
        flex-direction: column;
    }
}

/* Animations */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.fade-in {
    animation: fadeInUp 0.6s ease forwards;
}