/* ============================================
   CLINICAL RESEARCH SOLUTIONS - STYLE.CSS
   Premium Medical Device CRO Website
   Mobile-First Responsive Design
   ============================================ */

/* ============================================
   CSS VARIABLES & ROOT STYLES
   ============================================ */
:root {
    --primary: #7A2A8E;
    --primary-light: #9B4CAF;
    --primary-dark: #5A1A6E;
    --secondary: #F7F7F8;
    --dark: #1A1A1A;
    --gray: #666666;
    --light-gray: #E5E5E5;
    --white: #FFFFFF;
    --success: #28A745;
    --transition: all 0.3s ease;
    --shadow-sm: 0 2px 10px rgba(0, 0, 0, 0.05);
    --shadow-md: 0 10px 30px rgba(122, 42, 142, 0.1);
    --shadow-lg: 0 20px 60px rgba(122, 42, 142, 0.15);
}

/* ============================================
   RESET & BASE STYLES
   ============================================ */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

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

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

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

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

/* ============================================
   TYPOGRAPHY
   ============================================ */
h1, h2, h3, h4, h5, h6 {
    font-family: 'Crimson Pro', serif;
    line-height: 1.2;
    font-weight: 600;
    color: var(--dark);
}

h1 {
    font-size: clamp(2rem, 5vw, 3.8rem);
    letter-spacing: -0.5px;
}

h2 {
    font-size: clamp(1.75rem, 4vw, 3rem);
    letter-spacing: -0.5px;
}

h3 {
    font-size: clamp(1.25rem, 3vw, 1.75rem);
}

h4 {
    font-size: clamp(1.1rem, 2.5vw, 1.35rem);
}

p {
    margin-bottom: 1rem;
    color: var(--gray);
    line-height: 1.7;
}

/* ============================================
   CONTAINER & LAYOUT
   ============================================ */
.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

@media (min-width: 768px) {
    .container {
        padding: 0 40px;
    }
}

@media (min-width: 1024px) {
    .container {
        padding: 0 60px;
    }
}

/* ============================================
   NAVIGATION
   ============================================ */
#navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: rgba(255, 255, 255, 0.98);
    backdrop-filter: blur(10px);
    box-shadow: var(--shadow-sm);
    z-index: 1000;
    transition: var(--transition);
}

#navbar.scrolled {
    box-shadow: var(--shadow-md);
}

#navbar .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: 15px;
    padding-bottom: 15px;
}

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

/* Mobile Menu Toggle */
.mobile-menu-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 8px;
}

.mobile-menu-toggle span {
    width: 25px;
    height: 3px;
    background: var(--primary);
    border-radius: 3px;
    transition: var(--transition);
}

.mobile-menu-toggle.active span:nth-child(1) {
    transform: rotate(45deg) translate(6px, 6px);
}

.mobile-menu-toggle.active span:nth-child(2) {
    opacity: 0;
}

.mobile-menu-toggle.active span:nth-child(3) {
    transform: rotate(-45deg) translate(6px, -6px);
}

/* Desktop Navigation */
.nav-menu {
    display: flex;
    list-style: none;
    gap: 30px;
    align-items: center;
}

.nav-menu li a {
    font-size: 0.95rem;
    font-weight: 500;
    color: var(--dark);
    padding: 8px 0;
    position: relative;
}

.nav-menu li a:hover {
    color: var(--primary);
}

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

.nav-menu li a:hover::after {
    width: 100%;
}

.nav-cta {
    background: var(--primary);
    color: white !important;
    padding: 10px 24px !important;
    border-radius: 8px;
    font-weight: 600;
}

.nav-cta::after {
    display: none;
}

.nav-cta:hover {
    background: var(--primary-dark);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

/* Mobile Navigation */
@media (max-width: 768px) {
    .mobile-menu-toggle {
        display: flex;
    }

    .nav-menu {
        position: fixed;
        top: 70px;
        left: -100%;
        width: 100%;
        background: white;
        flex-direction: column;
        padding: 30px 20px;
        box-shadow: var(--shadow-lg);
        transition: left 0.3s ease;
        gap: 0;
    }

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

    .nav-menu li {
        width: 100%;
        border-bottom: 1px solid var(--light-gray);
    }

    .nav-menu li a {
        display: block;
        padding: 15px 0;
        font-size: 1.1rem;
    }

    .nav-cta {
        margin-top: 15px;
        text-align: center;
        display: block;
    }
}

/* ============================================
   BUTTONS
   ============================================ */
.btn {
    display: inline-block;
    padding: 14px 32px;
    font-size: 1rem;
    font-weight: 600;
    border-radius: 8px;
    cursor: pointer;
    transition: var(--transition);
    border: 2px solid transparent;
    text-align: center;
}

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

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

.btn-outline {
    background: transparent;
    color: white;
    border: 2px solid white;
}

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

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

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

@media (max-width: 768px) {
    .btn {
        padding: 12px 24px;
        font-size: 0.95rem;
    }
}

/* ============================================
   HERO SECTION
   ============================================ */
.hero {
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
    padding: 140px 0 80px;
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    right: 0;
    width: 50%;
    height: 100%;
    background: linear-gradient(135deg, rgba(255,255,255,0.05) 0%, transparent 100%);
    pointer-events: none;
}

.hero-content {
    display: grid;
    grid-template-columns: 1fr;
    gap: 50px;
    align-items: center;
}

@media (min-width: 768px) {
    .hero-content {
        grid-template-columns: 1fr 1fr;
        gap: 60px;
    }
}

.hero-label {
    display: inline-block;
    background: rgba(255, 255, 255, 0.2);
    color: white;
    padding: 8px 20px;
    border-radius: 50px;
    font-size: 0.9rem;
    font-weight: 600;
    letter-spacing: 0.5px;
    margin-bottom: 20px;
}

.hero h1 {
    color: white;
    margin-bottom: 25px;
}

.hero-description {
    color: rgba(255, 255, 255, 0.95);
    font-size: 1.15rem;
    line-height: 1.7;
    margin-bottom: 35px;
}

.hero-buttons {
    display: flex;
    gap: 15px;
    flex-wrap: wrap;
    margin-bottom: 40px;
}

@media (max-width: 480px) {
    .hero-buttons {
        flex-direction: column;
    }
    
    .hero-buttons .btn {
        width: 100%;
    }
}

/* Accreditation Bar */
.accreditation-bar {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
    gap: 15px;
    margin-top: 30px;
}

.accreditation-badge {
    display: flex;
    align-items: center;
    gap: 10px;
    background: rgba(255, 255, 255, 0.15);
    padding: 12px 15px;
    border-radius: 8px;
    backdrop-filter: blur(10px);
}

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

.badge-text {
    display: flex;
    flex-direction: column;
    line-height: 1.3;
}

.badge-text strong {
    color: white;
    font-size: 0.85rem;
    font-weight: 700;
}

.badge-text span {
    color: rgba(255, 255, 255, 0.8);
    font-size: 0.75rem;
}

@media (max-width: 768px) {
    .accreditation-bar {
        grid-template-columns: repeat(2, 1fr);
    }
}

/* Hero Image */
.hero-image-wrapper {
    border-radius: 20px;
    overflow: hidden;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
}

.hero-image-wrapper img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

/* ============================================
   VIDEO INTRODUCTION SECTION
   ============================================ */
.video-intro-section {
    padding: 80px 0;
    background: var(--white);
}

.video-intro-wrapper {
    display: grid;
    grid-template-columns: 1fr;
    gap: 50px;
    align-items: center;
}

@media (min-width: 768px) {
    .video-intro-wrapper {
        grid-template-columns: 1fr 1.2fr;
        gap: 60px;
    }
}

.video-intro-content h2 {
    margin-bottom: 20px;
}

.video-intro-content p {
    font-size: 1.1rem;
    margin-bottom: 30px;
}

.video-benefits {
    display: flex;
    flex-direction: column;
    gap: 15px;
}

.video-benefit {
    display: flex;
    align-items: center;
    gap: 12px;
    font-weight: 600;
    color: var(--dark);
}

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

/* Video Player */
.video-player-wrapper {
    position: relative;
}

.video-container {
    position: relative;
    padding-bottom: 56.25%; /* 16:9 aspect ratio */
    height: 0;
    overflow: hidden;
    border-radius: 15px;
    box-shadow: var(--shadow-lg);
}

.video-container iframe {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
}

.video-thumbnail {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    cursor: pointer;
}

.video-thumbnail img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.play-button {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    background: none;
    border: none;
    cursor: pointer;
    transition: transform 0.3s ease;
}

.play-button:hover {
    transform: translate(-50%, -50%) scale(1.1);
}

/* ============================================
   ACCREDITATIONS SECTION
   ============================================ */
.accreditations-section {
    padding: 80px 0;
    background: var(--secondary);
}

.accreditations-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 25px;
    margin-top: 50px;
}

@media (min-width: 640px) {
    .accreditations-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (min-width: 1024px) {
    .accreditations-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

.accreditation-card {
    background: white;
    padding: 35px;
    border-radius: 15px;
    transition: var(--transition);
    border: 2px solid transparent;
}

.accreditation-card.featured {
    border: 2px solid var(--primary);
    background: linear-gradient(135deg, rgba(122, 42, 142, 0.05) 0%, white 100%);
}

.accreditation-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
}

.accred-icon {
    font-size: 3rem;
    margin-bottom: 20px;
}

.accreditation-card h3 {
    font-size: 1.3rem;
    margin-bottom: 15px;
    color: var(--primary);
}

.accreditation-card p {
    font-size: 0.95rem;
    line-height: 1.6;
    margin-bottom: 20px;
}

.accred-badge {
    display: inline-block;
    background: var(--primary);
    color: white;
    padding: 6px 16px;
    border-radius: 50px;
    font-size: 0.85rem;
    font-weight: 600;
}

/* ============================================
   TESTIMONIAL BANNER
   ============================================ */
.testimonial-banner {
    background: linear-gradient(135deg, var(--primary-light) 0%, var(--primary) 100%);
    padding: 60px 0;
}

.testimonial-content {
    text-align: center;
    max-width: 900px;
    margin: 0 auto;
}

.testimonial-quote {
    font-size: 1.5rem;
    font-style: italic;
    color: white;
    line-height: 1.6;
    margin-bottom: 20px;
}

.testimonial-author {
    color: rgba(255, 255, 255, 0.9);
    font-size: 1rem;
    font-weight: 600;
}

@media (max-width: 768px) {
    .testimonial-quote {
        font-size: 1.2rem;
    }
}

/* ============================================
   SECTION HEADERS
   ============================================ */
.section-header {
    text-align: center;
    max-width: 800px;
    margin: 0 auto 60px;
}

.section-label {
    display: inline-block;
    background: rgba(122, 42, 142, 0.1);
    color: var(--primary);
    padding: 8px 20px;
    border-radius: 50px;
    font-size: 0.9rem;
    font-weight: 600;
    letter-spacing: 0.5px;
    margin-bottom: 15px;
}

.section-title {
    margin-bottom: 20px;
}

.section-description {
    font-size: 1.1rem;
    color: var(--gray);
    line-height: 1.7;
}

/* ============================================
   WHY CRS SECTION
   ============================================ */
.why-crs {
    padding: 80px 0;
    background: var(--secondary);
}

.features-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 20px;
    margin-top: 50px;
}

@media (min-width: 768px) {
    .features-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

.feature-card {
    display: flex;
    gap: 20px;
    padding: 30px;
    background: white;
    border-radius: 12px;
    transition: var(--transition);
    border: 1px solid rgba(122, 42, 142, 0.08);
    align-items: center;
}

.feature-card:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-md);
    border-color: var(--primary);
}

.feature-icon {
    width: 40px;
    height: 40px;
    min-width: 40px;
    background: var(--primary);
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.2rem;
    color: white;
    font-weight: 700;
}

.feature-content h3 {
    font-size: 1.05rem;
    color: var(--dark);
    margin-bottom: 0;
    font-weight: 600;
    line-height: 1.5;
}

/* ============================================
   SERVICES SECTION
   ============================================ */
.services {
    padding: 80px 0;
    background: white;
}

.services-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 30px;
    margin-top: 50px;
}

@media (min-width: 768px) {
    .services-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

.service-card {
    background: linear-gradient(135deg, rgba(122, 42, 142, 0.03) 0%, white 100%);
    padding: 40px;
    border-radius: 15px;
    border: 2px solid var(--light-gray);
    transition: var(--transition);
    position: relative;
}

.service-card:hover {
    border-color: var(--primary);
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
}

.service-number {
    position: absolute;
    top: 20px;
    right: 20px;
    font-size: 4rem;
    font-weight: 700;
    color: rgba(122, 42, 142, 0.08);
    font-family: 'Crimson Pro', serif;
}

.service-card h3 {
    font-size: 1.5rem;
    margin-bottom: 15px;
    color: var(--primary);
}

.service-card p {
    margin-bottom: 25px;
    line-height: 1.7;
}

.service-link {
    color: var(--primary);
    font-weight: 600;
    display: inline-flex;
    align-items: center;
    gap: 8px;
}

.service-link:hover {
    gap: 12px;
    color: var(--primary-dark);
}

/* ============================================
   CASE STUDIES PREVIEW
   ============================================ */
.case-studies-preview {
    padding: 80px 0;
    background: var(--secondary);
}

.case-studies-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 30px;
    margin-top: 50px;
}

@media (min-width: 768px) {
    .case-studies-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (min-width: 1024px) {
    .case-studies-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

.case-study-card {
    background: white;
    padding: 35px;
    border-radius: 15px;
    transition: var(--transition);
    display: flex;
    flex-direction: column;
}

.case-study-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
}

.case-tag {
    display: inline-block;
    background: rgba(122, 42, 142, 0.1);
    color: var(--primary);
    padding: 6px 14px;
    border-radius: 50px;
    font-size: 0.8rem;
    font-weight: 600;
    margin-bottom: 20px;
    width: fit-content;
}

.case-study-card h3 {
    font-size: 1.4rem;
    margin-bottom: 15px;
    color: var(--dark);
}

.case-study-card p {
    flex-grow: 1;
    margin-bottom: 25px;
}

.case-metrics {
    display: flex;
    gap: 20px;
    margin-bottom: 25px;
    padding-top: 20px;
    border-top: 1px solid var(--light-gray);
}

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

.metric-number {
    font-size: 1.8rem;
    font-weight: 700;
    color: var(--primary);
    font-family: 'Crimson Pro', serif;
}

.metric-label {
    font-size: 0.85rem;
    color: var(--gray);
}

.case-link {
    color: var(--primary);
    font-weight: 600;
    display: inline-flex;
    align-items: center;
    gap: 8px;
}

.case-link:hover {
    gap: 12px;
}

.view-all-cta {
    text-align: center;
    margin-top: 50px;
}

/* ============================================
   TEAM SECTION
   ============================================ */
.team {
    padding: 80px 0;
    background: white;
}

.team-section-title {
    font-size: 1.8rem;
    color: var(--primary);
    margin: 50px 0 30px;
    text-align: center;
}

.team-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 40px;
    margin-top: 50px;
}

@media (min-width: 640px) {
    .team-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (min-width: 1024px) {
    .team-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

.team-card {
    text-align: center;
    padding: 30px;
    background: var(--secondary);
    border-radius: 15px;
    transition: var(--transition);
}

.team-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-md);
}

.team-image-wrapper {
    width: 180px;
    height: 180px;
    margin: 0 auto 25px;
    border-radius: 50%;
    overflow: hidden;
    border: 4px solid var(--primary);
    box-shadow: var(--shadow-md);
}

.team-image-wrapper img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.team-icon-wrapper {
    width: 100px;
    height: 100px;
    margin: 0 auto 25px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: var(--shadow-md);
}

.team-icon {
    font-size: 3rem;
}

.team-card h4 {
    font-size: 1.4rem;
    margin-bottom: 8px;
    color: var(--dark);
}

.team-role {
    color: var(--primary);
    font-weight: 600;
    font-size: 1rem;
    margin-bottom: 15px;
}

.team-bio {
    font-size: 0.95rem;
    line-height: 1.6;
    color: var(--gray);
}

/* ============================================
   TESTIMONIALS SECTION
   ============================================ */
.testimonials-section {
    padding: 80px 0;
    background: var(--secondary);
}

.testimonials-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 30px;
    margin-top: 50px;
}

@media (min-width: 768px) {
    .testimonials-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (min-width: 1024px) {
    .testimonials-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

.testimonial-card {
    background: white;
    padding: 35px;
    border-radius: 15px;
    border-left: 4px solid var(--primary);
    transition: var(--transition);
}

.testimonial-card:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-md);
}

.testimonial-card .quote {
    font-style: italic;
    font-size: 1rem;
    line-height: 1.7;
    margin-bottom: 20px;
    color: var(--dark);
}

.testimonial-card .author {
    font-weight: 600;
    color: var(--primary);
    font-size: 0.9rem;
}

/* ============================================
   CTA SECTION
   ============================================ */
.cta-section {
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
    padding: 80px 0;
    text-align: center;
}

.cta-section h2 {
    color: white;
    font-size: 2.5rem;
    margin-bottom: 20px;
}

.cta-section p {
    color: rgba(255, 255, 255, 0.95);
    font-size: 1.2rem;
    margin-bottom: 35px;
    max-width: 700px;
    margin-left: auto;
    margin-right: auto;
}

.cta-buttons {
    display: flex;
    gap: 20px;
    justify-content: center;
    flex-wrap: wrap;
}

@media (max-width: 480px) {
    .cta-buttons {
        flex-direction: column;
        align-items: center;
    }
}

/* ============================================
   CONTACT SECTION
   ============================================ */
.contact-section {
    padding: 80px 0;
    background: white;
}

.contact-wrapper {
    display: grid;
    grid-template-columns: 1fr;
    gap: 50px;
}

@media (min-width: 768px) {
    .contact-wrapper {
        grid-template-columns: 1fr 1.5fr;
        gap: 60px;
    }
}

.contact-info h3 {
    font-size: 2rem;
    margin-bottom: 20px;
    color: var(--primary);
}

.contact-info > p {
    font-size: 1.05rem;
    margin-bottom: 40px;
}

.contact-details {
    display: flex;
    flex-direction: column;
    gap: 25px;
}

.contact-item {
    display: flex;
    gap: 20px;
    align-items: flex-start;
}

.contact-item-icon {
    font-size: 2rem;
    min-width: 50px;
    height: 50px;
    background: rgba(122, 42, 142, 0.1);
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.contact-item h4 {
    font-size: 1.1rem;
    margin-bottom: 5px;
    color: var(--dark);
}

.contact-item p {
    font-size: 1rem;
    margin: 0;
}

.contact-item a {
    color: var(--primary);
    font-weight: 600;
}

.contact-item a:hover {
    text-decoration: underline;
}

/* Contact Form */
.contact-form {
    background: var(--secondary);
    padding: 40px;
    border-radius: 15px;
}

.form-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 20px;
}

@media (min-width: 640px) {
    .form-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

.form-group {
    margin-bottom: 25px;
}

.form-group label {
    display: block;
    margin-bottom: 8px;
    font-weight: 600;
    color: var(--dark);
    font-size: 0.95rem;
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 14px 18px;
    border: 2px solid var(--light-gray);
    border-radius: 8px;
    font-size: 1rem;
    font-family: inherit;
    transition: var(--transition);
    background: white;
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 4px rgba(122, 42, 142, 0.1);
}

.form-group textarea {
    min-height: 150px;
    resize: vertical;
}

.submit-btn {
    width: 100%;
    padding: 16px;
    background: var(--primary);
    color: white;
    border: none;
    border-radius: 8px;
    font-size: 1.05rem;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
}

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

/* ============================================
   FOOTER
   ============================================ */
.footer {
    background: var(--dark);
    color: white;
    padding: 60px 0 30px;
}

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

@media (min-width: 640px) {
    .footer-content {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (min-width: 1024px) {
    .footer-content {
        grid-template-columns: 2fr 1fr 1fr 1fr;
    }
}

.footer-about h3 {
    color: white;
    font-size: 1.5rem;
    margin-bottom: 15px;
}

.footer-about p {
    color: rgba(255, 255, 255, 0.8);
    margin-bottom: 20px;
    line-height: 1.6;
}

.footer-badges {
    display: flex;
    flex-direction: column;
    gap: 10px;
    margin-bottom: 25px;
}

.footer-badge {
    display: inline-block;
    background: rgba(255, 255, 255, 0.1);
    padding: 6px 12px;
    border-radius: 5px;
    font-size: 0.85rem;
    width: fit-content;
}

.social-links {
    display: flex;
    gap: 15px;
}

.social-link {
    width: 40px;
    height: 40px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition);
}

.social-link:hover {
    background: var(--primary);
    transform: translateY(-3px);
}

.footer-links h4 {
    color: white;
    font-size: 1.1rem;
    margin-bottom: 20px;
}

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

.footer-links ul li {
    margin-bottom: 12px;
}

.footer-links ul li a {
    color: rgba(255, 255, 255, 0.7);
    transition: var(--transition);
    font-size: 0.95rem;
}

.footer-links ul li a:hover {
    color: white;
    padding-left: 5px;
}

.footer-bottom {
    text-align: center;
    padding-top: 30px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-bottom p {
    color: rgba(255, 255, 255, 0.6);
    font-size: 0.9rem;
    margin: 0;
}

.footer-bottom a {
    color: rgba(255, 255, 255, 0.8);
}

.footer-bottom a:hover {
    color: white;
    text-decoration: underline;
}

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

.fade-in {
    opacity: 0;
    animation: fadeInUp 0.6s ease forwards;
}

.fade-in:nth-child(1) { animation-delay: 0.1s; }
.fade-in:nth-child(2) { animation-delay: 0.2s; }
.fade-in:nth-child(3) { animation-delay: 0.3s; }

/* ============================================
   UTILITY CLASSES
   ============================================ */
.text-center {
    text-align: center;
}

.mt-50 {
    margin-top: 50px;
}

.mb-50 {
    margin-bottom: 50px;
}

/* ============================================
   ACCESSIBILITY
   ============================================ */
.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border-width: 0;
}

:focus-visible {
    outline: 3px solid var(--primary);
    outline-offset: 3px;
}

/* ============================================
   PRINT STYLES
   ============================================ */
@media print {
    .nav, .footer, .cta-section {
        display: none;
    }
    
    body {
        font-size: 12pt;
    }
    
    h1 { font-size: 24pt; }
    h2 { font-size: 20pt; }
    h3 { font-size: 16pt; }
}