/* 
 * Purely Skin AU - Main Stylesheet
 * Neomorphic Design System with Adaptive Typography
 */

/* ===== CSS Variables & Reset ===== */
:root {
    /* Brand Colors */
    --primary-light: #F0E6F2;
    --primary: #AC78B8;
    --primary-dark: #8E4E9B;
    --secondary-light: #E6F2F0;
    --secondary: #65AFA0;
    --secondary-dark: #458C7D;
    --accent: #F2B880;
    --accent-dark: #D99E69;
    
    /* Neutral Colors */
    --white: #FFFFFF;
    --light-gray: #F0F0F5;
    --mid-gray: #D1D1DB;
    --dark-gray: #707082;
    --near-black: #2A2A3A;
    --black: #121218;
    
    /* Functional Colors */
    --success: #5CB85C;
    --warning: #F0AD4E;
    --danger: #D9534F;
    --info: #5BC0DE;
    
    /* Typography */
    --heading-font: 'Space Grotesk', sans-serif;
    --body-font: 'DM Sans', sans-serif;
    
    /* Spacing */
    --space-xs: 0.25rem;
    --space-sm: 0.5rem;
    --space-md: 1rem;
    --space-lg: 2rem;
    --space-xl: 3rem;
    --space-xxl: 5rem;
    
    /* Border Radius */
    --radius-sm: 4px;
    --radius-md: 8px;
    --radius-lg: 16px;
    --radius-xl: 24px;
    --radius-round: 50%;
    
    /* Shadows */
    --shadow-inner: inset 3px 3px 6px rgba(0, 0, 0, 0.1), inset -3px -3px 6px rgba(255, 255, 255, 0.7);
    --shadow-outer: 5px 5px 15px rgba(0, 0, 0, 0.1), -5px -5px 15px rgba(255, 255, 255, 0.7);
    --shadow-pressed: inset 5px 5px 10px rgba(0, 0, 0, 0.1), inset -5px -5px 10px rgba(255, 255, 255, 0.5);
    
    /* Gradients */
    --gradient-primary: linear-gradient(135deg, var(--primary-light) 0%, var(--primary) 100%);
    --gradient-secondary: linear-gradient(135deg, var(--secondary-light) 0%, var(--secondary) 100%);
    --gradient-accent: linear-gradient(135deg, var(--accent) 0%, var(--accent-dark) 100%);
    --gradient-light: linear-gradient(135deg, #FFFFFF 0%, var(--light-gray) 100%);
    --gradient-dark: linear-gradient(135deg, var(--near-black) 0%, var(--black) 100%);
    
    /* Transitions */
    --transition-fast: 0.15s ease;
    --transition-medium: 0.3s ease;
    --transition-slow: 0.5s ease;
    
    /* Container widths */
    --container-sm: 640px;
    --container-md: 768px;
    --container-lg: 1024px;
    --container-xl: 1280px;
}

/* ===== Global Reset ===== */
*,
*::before,
*::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

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

body {
    font-family: var(--body-font);
    font-size: 1rem;
    line-height: 1.6;
    color: var(--near-black);
    background-color: var(--light-gray);
    overflow-x: hidden;
}

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

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

a:hover {
    color: var(--primary-dark);
    text-decoration: underline;
}

h1, h2, h3, h4, h5, h6 {
    font-family: var(--heading-font);
    font-weight: 600;
    line-height: 1.2;
    margin-bottom: var(--space-md);
    color: var(--near-black);
}

h1 {
    font-size: clamp(2rem, 5vw, 3.5rem);
}

h2 {
    font-size: clamp(1.75rem, 4vw, 2.5rem);
}

h3 {
    font-size: clamp(1.5rem, 3vw, 2rem);
}

h4 {
    font-size: clamp(1.25rem, 2.5vw, 1.75rem);
}

h5 {
    font-size: clamp(1.125rem, 2vw, 1.5rem);
}

h6 {
    font-size: clamp(1rem, 1.5vw, 1.25rem);
}

p {
    margin-bottom: var(--space-md);
}

ul, ol {
    padding-left: var(--space-lg);
    margin-bottom: var(--space-md);
}

/* ===== Utility Classes ===== */
.container {
    width: 100%;
    max-width: var(--container-xl);
    margin: 0 auto;
    padding: 0 var(--space-md);
}

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

.section-header {
    text-align: center;
    margin-bottom: var(--space-xl);
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
}

.section-header p {
    font-size: 1.125rem;
    color: var(--dark-gray);
}

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

.hidden {
    display: none !important;
}

.overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(to bottom, rgba(0,0,0,0.3), rgba(0,0,0,0.7));
}

/* ===== Neomorphic Elements ===== */
.neomorphic {
    background: var(--light-gray);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-outer);
    transition: box-shadow var(--transition-medium), transform var(--transition-medium);
}

.neomorphic:hover {
    box-shadow: var(--shadow-outer), 0 4px 8px rgba(0, 0, 0, 0.05);
    transform: translateY(-3px);
}

.neomorphic:active {
    box-shadow: var(--shadow-pressed);
    transform: translateY(0);
}

.neomorphic-input {
    width: 100%;
    padding: var(--space-md);
    border: none;
    background: var(--light-gray);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-inner);
    outline: none;
    font-family: var(--body-font);
    font-size: 1rem;
    transition: box-shadow var(--transition-medium);
}

.neomorphic-input:focus {
    box-shadow: var(--shadow-pressed);
}

/* ===== Buttons ===== */
.btn {
    display: inline-block;
    font-family: var(--body-font);
    font-weight: 500;
    font-size: 1rem;
    line-height: 1.5;
    text-align: center;
    vertical-align: middle;
    border: none;
    padding: 0.75rem 1.5rem;
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all var(--transition-medium);
    text-decoration: none;
}

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

.primary-btn:hover, .primary-btn:focus {
    background: var(--primary-dark);
    color: var(--white);
    text-decoration: none;
}

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

.secondary-btn:hover, .secondary-btn:focus {
    background: var(--secondary-dark);
    color: var(--white);
    text-decoration: none;
}

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

.btn.neomorphic:hover {
    transform: translateY(-3px);
}

.btn.neomorphic:active {
    box-shadow: var(--shadow-pressed);
    transform: translateY(0);
}

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

.secondary-btn.neomorphic {
    background: var(--gradient-secondary);
    color: var(--white);
}

/* ===== Header & Navigation ===== */
.header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    background: var(--white);
    padding: var(--space-sm) 0;
    transition: box-shadow var(--transition-medium), background var(--transition-medium);
}

.header.neomorphic {
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.1);
    border-radius: 0;
}

.header-inner {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo a {
    text-decoration: none;
}

.logo h1 {
    font-size: 1.5rem;
    font-weight: 700;
    margin: 0;
    color: var(--primary);
}

.desktop-nav {
    display: none;
}

.desktop-nav ul {
    display: flex;
    list-style: none;
    padding: 0;
    margin: 0;
}

.desktop-nav li {
    margin-left: var(--space-lg);
}

.desktop-nav a {
    font-weight: 500;
    font-size: 1rem;
    color: var(--near-black);
    text-decoration: none;
    transition: color var(--transition-medium);
}

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

.mobile-menu-toggle {
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    width: 30px;
    height: 21px;
    cursor: pointer;
}

.mobile-menu-toggle span {
    display: block;
    height: 3px;
    width: 100%;
    background-color: var(--near-black);
    border-radius: 3px;
    transition: all var(--transition-medium);
}

.mobile-menu-toggle.active span:nth-child(1) {
    transform: translateY(9px) rotate(45deg);
}

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

.mobile-menu-toggle.active span:nth-child(3) {
    transform: translateY(-9px) rotate(-45deg);
}

.mobile-nav {
    position: fixed;
    top: 68px;
    left: 0;
    width: 100%;
    height: 0;
    background: var(--white);
    overflow: hidden;
    transition: height var(--transition-medium);
    z-index: 999;
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.1);
}

.mobile-nav.active {
    height: calc(100vh - 68px);
}

.mobile-nav ul {
    list-style: none;
    padding: var(--space-lg);
    margin: 0;
}

.mobile-nav li {
    margin-bottom: var(--space-md);
}

.mobile-nav a {
    display: block;
    font-size: 1.25rem;
    font-weight: 500;
    color: var(--near-black);
    text-decoration: none;
    padding: var(--space-sm) 0;
    transition: color var(--transition-medium);
}

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

/* ===== Hero Section ===== */
.hero {
    position: relative;
    height: 100vh;
    display: flex;
    align-items: center;
    padding-top: 68px; /* Header height offset */
    background-position: center;
    background-size: cover;
    background-repeat: no-repeat;
    overflow: hidden;
    color: var(--white);
}

.hero-content {
    position: relative;
    z-index: 2;
    max-width: 600px;
}

.hero-content h1, 
.hero-content h2 {
    color: var(--white);
    margin-bottom: var(--space-md);
    text-shadow: 0 2px 5px rgba(0, 0, 0, 0.2);
}

.hero-content p {
    font-size: 1.125rem;
    margin-bottom: var(--space-lg);
    color: var(--white);
    text-shadow: 0 1px 3px rgba(0, 0, 0, 0.3);
}

.hero-buttons {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-md);
}

/* ===== Research Section ===== */
.research {
    background-color: var(--white);
}

.research-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--space-xl);
    margin-bottom: var(--space-xl);
}

.research-image .image-container {
    height: 350px;
    overflow: hidden;
    border-radius: var(--radius-lg);
}

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

.research-content h3 {
    color: var(--primary);
    margin-bottom: var(--space-md);
}

.research-stats {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: var(--space-md);
    padding: var(--space-lg);
    margin-top: var(--space-lg);
}

.stat {
    text-align: center;
}

.stat .number {
    display: block;
    font-family: var(--heading-font);
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--primary);
    margin-bottom: var(--space-xs);
}

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

.research-process {
    margin-top: var(--space-xl);
}

.research-process h3 {
    text-align: center;
    margin-bottom: var(--space-lg);
}

.process-steps {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--space-lg);
}

.process-step {
    padding: var(--space-lg);
    text-align: center;
}

.step-number {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 50px;
    height: 50px;
    margin: 0 auto var(--space-md);
    background: var(--gradient-primary);
    color: var(--white);
    border-radius: var(--radius-round);
    font-family: var(--heading-font);
    font-size: 1.5rem;
    font-weight: 700;
}

.process-step h4 {
    margin-bottom: var(--space-sm);
    color: var(--primary);
}

/* ===== Products/Pricing Section ===== */
.pricing {
    background-color: var(--light-gray);
}

.product-category {
    margin-bottom: var(--space-xl);
}

.product-category h3 {
    text-align: center;
    margin-bottom: var(--space-lg);
    color: var(--primary);
}

.products-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--space-lg);
}

.card {
    display: flex;
    flex-direction: column;
    align-items: center;
    overflow: hidden;
    transition: transform var(--transition-medium);
}

.card-image {
    width: 100%;
    height: 300px;
    overflow: hidden;
    border-radius: var(--radius-lg) var(--radius-lg) 0 0;
}

.card-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform var(--transition-slow);
}

.card:hover .card-image img {
    transform: scale(1.05);
}

.card-content {
    padding: var(--space-lg);
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    flex-grow: 1;
}

.card-content h4 {
    color: var(--primary);
    margin-bottom: var(--space-sm);
}

.product-details {
    display: flex;
    justify-content: space-between;
    align-items: center;
    width: 100%;
    margin: var(--space-md) 0;
}

.price {
    font-weight: 700;
    font-size: 1.25rem;
    color: var(--primary);
}

.size {
    color: var(--dark-gray);
}

/* ===== Innovation Section ===== */
.innovation {
    background-color: var(--white);
}

.innovation-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--space-xl);
    margin-bottom: var(--space-xl);
}

.innovation-content h3 {
    color: var(--secondary);
    margin-bottom: var(--space-md);
}

.innovation-features {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--space-lg);
    margin-top: var(--space-lg);
}

.feature {
    padding: var(--space-lg);
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
}

.feature-icon {
    width: 60px;
    height: 60px;
    margin-bottom: var(--space-md);
    display: flex;
    align-items: center;
    justify-content: center;
}

.feature-icon img {
    width: 100%;
    height: 100%;
    object-fit: contain;
}

.feature h4 {
    color: var(--secondary);
    margin-bottom: var(--space-sm);
}

.innovation-image .image-container {
    height: 600px;
    overflow: hidden;
    border-radius: var(--radius-lg);
}

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

.innovation-timeline {
    margin-top: var(--space-xl);
}

.innovation-timeline h3 {
    text-align: center;
    margin-bottom: var(--space-lg);
    color: var(--secondary);
}

.timeline {
    padding: var(--space-lg);
    display: flex;
    flex-direction: column;
}

.timeline-event {
    display: flex;
    margin-bottom: var(--space-lg);
}

.timeline-year {
    flex: 0 0 80px;
    font-family: var(--heading-font);
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--secondary);
    padding-right: var(--space-md);
}

.timeline-content {
    flex: 1;
    position: relative;
    padding-left: var(--space-lg);
    border-left: 3px solid var(--secondary-light);
}

.timeline-content::before {
    content: "";
    position: absolute;
    left: -10px;
    top: 0;
    width: 16px;
    height: 16px;
    background-color: var(--secondary);
    border-radius: var(--radius-round);
    border: 3px solid var(--white);
}

.timeline-content h4 {
    margin-bottom: var(--space-xs);
    color: var(--secondary);
}

/* ===== Resources Section ===== */
.resources {
    background-color: var(--light-gray);
}

.resources-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--space-lg);
}

.resource-card {
    padding: var(--space-lg);
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    height: 100%;
}

.resource-card h3 {
    color: var(--primary);
    margin-bottom: var(--space-md);
}

.resource-link {
    margin-top: auto;
    font-weight: 600;
    color: var(--primary);
    text-decoration: none;
    position: relative;
    padding-bottom: var(--space-xs);
    transition: color var(--transition-medium);
}

.resource-link::after {
    content: "";
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 2px;
    background-color: var(--primary);
    transform: scaleX(0);
    transform-origin: right;
    transition: transform var(--transition-medium);
}

.resource-link:hover {
    color: var(--primary-dark);
    text-decoration: none;
}

.resource-link:hover::after {
    transform: scaleX(1);
    transform-origin: left;
}

/* ===== Insights Section ===== */
.insights {
    background-color: var(--white);
}

.insights-tabs {
    max-width: 900px;
    margin: 0 auto;
}

.tabs {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: var(--space-sm);
    padding: var(--space-md);
    margin-bottom: var(--space-lg);
    border-radius: var(--radius-lg);
}

.tab-btn {
    padding: var(--space-md) var(--space-lg);
    background: transparent;
    border: none;
    border-radius: var(--radius-md);
    cursor: pointer;
    font-family: var(--body-font);
    font-size: 1rem;
    font-weight: 500;
    color: var(--dark-gray);
    transition: all var(--transition-medium);
}

.tab-btn:hover {
    color: var(--primary);
}

.tab-btn.active {
    background-color: var(--primary);
    color: var(--white);
    box-shadow: var(--shadow-outer);
}

.tab-content {
    display: none;
}

.tab-content.active {
    display: block;
}

.tab-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--space-lg);
}

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

.tab-image img {
    max-width: 100%;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-outer);
    margin: 0 auto;
}

.tab-text h3 {
    color: var(--primary);
    margin-bottom: var(--space-md);
}

/* ===== Success Stories Section ===== */
.success-stories {
    background-color: var(--light-gray);
}

.testimonials-slider {
    margin-bottom: var(--space-xl);
    padding: var(--space-md);
    position: relative;
}

.testimonials-container {
    position: relative;
    overflow: hidden;
    min-height: 300px;
}

.testimonial-slide {
    opacity: 0;
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    transition: opacity var(--transition-slow);
}

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

.testimonial-content {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--space-lg);
    align-items: center;
}

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

.testimonial-image img {
    width: 150px;
    height: 150px;
    object-fit: cover;
    border-radius: var(--radius-round);
    box-shadow: var(--shadow-outer);
    margin: 0 auto;
}

.testimonial-text {
    padding: var(--space-md);
}

.testimonial-text p {
    font-style: italic;
    margin-bottom: var(--space-md);
}

.testimonial-author h4 {
    margin-bottom: 0;
    color: var(--primary);
}

.testimonial-author p {
    margin-bottom: var(--space-md);
    font-size: 0.875rem;
    color: var(--dark-gray);
}

.results-summary {
    background: var(--gradient-primary);
    color: var(--white);
    padding: var(--space-sm) var(--space-md);
    border-radius: var(--radius-md);
    display: inline-block;
    font-size: 0.875rem;
    font-weight: 500;
}

.slider-controls {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: var(--space-md);
    margin-top: var(--space-lg);
}

.prev-btn, .next-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    border: none;
    background: var(--light-gray);
    border-radius: var(--radius-round);
    cursor: pointer;
}

.arrow-left, .arrow-right {
    display: inline-block;
    width: 12px;
    height: 12px;
    border-top: 2px solid var(--primary);
    border-right: 2px solid var(--primary);
}

.arrow-left {
    transform: rotate(-135deg);
}

.arrow-right {
    transform: rotate(45deg);
}

.slider-dots {
    display: flex;
    gap: var(--space-sm);
}

.dot {
    width: 10px;
    height: 10px;
    background-color: var(--mid-gray);
    border-radius: var(--radius-round);
    cursor: pointer;
    transition: background-color var(--transition-medium);
}

.dot.active {
    background-color: var(--primary);
}

.before-after-showcase {
    margin-top: var(--space-xl);
}

.before-after-showcase h3 {
    text-align: center;
    margin-bottom: var(--space-lg);
    color: var(--primary);
}

.before-after-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: var(--space-lg);
}

.before-after-item {
    padding: var(--space-md);
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
}

.before-after-images {
    width: 100%;
    height: 250px;
    margin-bottom: var(--space-md);
    overflow: hidden;
    border-radius: var(--radius-lg);
}

.before-after-images img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.before-after-text h4 {
    color: var(--primary);
    margin-bottom: var(--space-xs);
}

.before-after-text p {
    color: var(--dark-gray);
    margin-bottom: 0;
}

/* ===== Contact Section ===== */
.contact {
    background-color: var(--white);
}

.contact-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--space-xl);
}

.contact-info {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--space-md);
}

.info-card {
    padding: var(--space-lg);
    text-align: center;
}

.info-card h3 {
    color: var(--primary);
    margin-bottom: var(--space-md);
}

.map-container {
    grid-column: 1 / -1;
    height: 300px;
    margin-top: var(--space-lg);
    overflow: hidden;
    border-radius: var(--radius-lg);
}

.map-container img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.contact-form {
    padding: var(--space-lg);
}

.contact-form h3 {
    color: var(--primary);
    text-align: center;
    margin-bottom: var(--space-lg);
}

.form-group {
    margin-bottom: var(--space-md);
}

label {
    display: block;
    margin-bottom: var(--space-sm);
    font-weight: 500;
}

.checkbox-container {
    display: flex;
    align-items: flex-start;
    position: relative;
    padding-left: 30px;
    cursor: pointer;
}

.checkbox-container input {
    position: absolute;
    opacity: 0;
    cursor: pointer;
}

.checkmark {
    position: absolute;
    top: 0;
    left: 0;
    height: 20px;
    width: 20px;
    background-color: var(--light-gray);
    border-radius: var(--radius-sm);
}

.checkbox-container:hover .checkmark {
    background-color: var(--mid-gray);
}

.checkbox-container input:checked ~ .checkmark:after {
    content: "";
    position: absolute;
    left: 7px;
    top: 3px;
    width: 6px;
    height: 10px;
    border: solid var(--primary);
    border-width: 0 2px 2px 0;
    transform: rotate(45deg);
}

.checkbox-text {
    font-size: 0.875rem;
    color: var(--dark-gray);
}

/* ===== Footer ===== */
.footer {
    background-color: var(--near-black);
    color: var(--light-gray);
    padding: var(--space-xl) 0 var(--space-md);
}

.footer-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--space-lg);
}

.footer h3 {
    color: var(--white);
    margin-bottom: var(--space-md);
    font-size: 1.25rem;
}

.footer-about p {
    margin-bottom: 0;
}

.footer-links ul,
.footer-legal ul,
.footer-social ul {
    list-style: none;
    padding: 0;
    margin: 0;
}

.footer-links li,
.footer-legal li,
.footer-social li {
    margin-bottom: var(--space-sm);
}

.footer-links a,
.footer-legal a,
.footer-social a {
    color: var(--mid-gray);
    text-decoration: none;
    transition: color var(--transition-medium);
}

.footer-links a:hover,
.footer-legal a:hover,
.footer-social a:hover {
    color: var(--white);
    text-decoration: none;
}

.social-links {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-sm);
}

.social-links li {
    margin-bottom: 0;
}

.social-links a {
    padding: var(--space-xs) var(--space-sm);
    border-radius: var(--radius-sm);
    background-color: rgba(255, 255, 255, 0.1);
    transition: background-color var(--transition-medium), color var(--transition-medium);
}

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

.newsletter-form {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-sm);
    margin-top: var(--space-md);
}

.footer-bottom {
    display: flex;
    flex-direction: column;
    text-align: center;
    margin-top: var(--space-xl);
    padding-top: var(--space-md);
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-bottom p {
    margin-bottom: var(--space-xs);
    font-size: 0.875rem;
    color: var(--mid-gray);
}

/* ===== Success Page ===== */
.success-page {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    text-align: center;
    min-height: 100vh;
    padding: var(--space-xl) var(--space-md);
}

.success-content {
    max-width: 600px;
}

.success-icon {
    font-size: 5rem;
    color: var(--success);
    margin-bottom: var(--space-lg);
}

/* ===== Privacy & Terms Pages ===== */
.privacy-page,
.terms-page {
    padding-top: 100px;
}

.privacy-content,
.terms-content {
    max-width: 800px;
    margin: 0 auto;
    padding: var(--space-xl) var(--space-md);
}

/* ===== Animation Classes ===== */
.animate-on-scroll {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.8s, transform 0.8s;
}

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

.parallax-container {
    position: relative;
    overflow: hidden;
}

.parallax-element {
    transition: transform 0.5s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

/* ===== Media Queries ===== */
@media (min-width: 576px) {
    .hero-buttons {
        flex-direction: row;
    }
}

@media (min-width: 768px) {
    .desktop-nav {
        display: block;
    }
    
    .mobile-menu-toggle {
        display: none;
    }
    
    .testimonial-content {
        grid-template-columns: 200px 1fr;
    }
    
    .research-grid,
    .innovation-grid {
        grid-template-columns: 1fr 1fr;
    }
    
    .footer-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .footer-about {
        grid-column: 1 / -1;
    }
}

@media (min-width: 992px) {
    .contact-grid {
        grid-template-columns: 1fr 1fr;
    }
    
    .footer-grid {
        grid-template-columns: 2fr 1fr 1fr 1fr 2fr;
    }
    
    .footer-about {
        grid-column: auto;
    }
}

@media (min-width: 1200px) {
    .tab-grid {
        grid-template-columns: 1fr 1.5fr;
    }
}