/* 
=================================
  ZARNETIA - HYDRATION FOR ATHLETES
  Custom CSS Stylesheet
  Version: 1.0
  Copyright 2025 Zarnetia
=================================
*/

/* 
=================================
  TABLE OF CONTENTS
  1. Base Styles & Reset
  2. Typography
  3. Layout & Grid
  4. Header & Navigation
  5. Hero Section
  6. Section Styles
    6.1 Importance Section
    6.2 Timing Section
    6.3 Tips Section
    6.4 Mistakes Section
    6.5 Hydration Test Section
    6.6 Product Banner
    6.7 Reviews Section
    6.8 PDF Signup Section
    6.9 Contact Section
  7. Forms
  8. Buttons
  9. Cards & Components
  10. Animations
  11. Footer
  12. Policy Pages
  13. Success Page
  14. Media Queries
=================================
*/


/* 
=================================
  1. Base Styles & Reset
=================================
*/
:root {
    /* Colors */
    --primary: #009DFF;
    --primary-dark: #007ACC;
    --primary-light: #E1F5FF;
    --secondary: #4CD5C5;
    --dark: #333333;
    --medium: #666666;
    --light: #F7FAFC;
    --white: #FFFFFF;
    --gray-100: #F7FAFC;
    --gray-200: #EDF2F7;
    --gray-300: #E2E8F0;
    --gray-400: #CBD5E0;
    --gray-500: #A0AEC0;
    --gray-600: #718096;
    --gray-700: #4A5568;
    --gray-800: #2D3748;
    --gray-900: #1A202C;
    --error: #FF5252;
    --success: #4CAF50;
    
    /* Typography */
    --font-heading: 'Poppins', sans-serif;
    --font-body: 'Open Sans', sans-serif;
    
    /* Spacing */
    --spacing-xs: 0.25rem;
    --spacing-sm: 0.5rem;
    --spacing-md: 1rem;
    --spacing-lg: 1.5rem;
    --spacing-xl: 2rem;
    --spacing-xxl: 3rem;
    --spacing-xxxl: 5rem;
    
    /* Borders & Shadows */
    --border-radius-sm: 4px;
    --border-radius-md: 8px;
    --border-radius-lg: 16px;
    --border-radius-xl: 24px;
    --border-radius-round: 50%;
    
    --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 rgba(0,0,0,0.1), 0 1px 3px rgba(0,0,0,0.08);
    --shadow-lg: 0 10px 20px rgba(0,0,0,0.15), 0 3px 6px rgba(0,0,0,0.1);
    --shadow-xl: 0 15px 25px rgba(0,0,0,0.15), 0 5px 10px rgba(0,0,0,0.05);
    
    /* Transitions */
    --transition-fast: 0.2s ease-out;
    --transition-medium: 0.3s ease-in-out;
    --transition-slow: 0.5s ease-in-out;
    
    /* Layout */
    --container-width: 1280px;
    --header-height: 80px;
    --header-height-mobile: 60px;
}

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

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

body {
    font-family: var(--font-body);
    color: var(--dark);
    line-height: 1.6;
    overflow-x: hidden;
    background-color: var(--white);
}

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

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

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

ul, ol {
    list-style-position: inside;
}

/* 
=================================
  2. Typography
=================================
*/
h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-heading);
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: var(--spacing-md);
    color: var(--gray-900);
}

h1 {
    font-size: 3rem;
    letter-spacing: -0.02em;
}

h2 {
    font-size: 2.25rem;
    letter-spacing: -0.01em;
}

h3 {
    font-size: 1.5rem;
}

h4 {
    font-size: 1.25rem;
}

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

.subtitle {
    font-size: 1.25rem;
    color: var(--gray-700);
    margin-bottom: var(--spacing-lg);
}

.section-intro {
    font-size: 1.125rem;
    color: var(--gray-600);
    max-width: 800px;
    margin: 0 auto var(--spacing-xl);
    text-align: center;
}

/* 
=================================
  3. Layout & Grid
=================================
*/
.container {
    width: 100%;
    max-width: var(--container-width);
    margin: 0 auto;
    padding: 0 var(--spacing-lg);
}

section {
    padding: var(--spacing-xxxl) 0;
    position: relative;
}

.wave-divider {
    position: absolute;
    top: -80px;
    left: 0;
    width: 100%;
    height: 80px;
    background-image: url("images/wawe.jpg");
    background-size: cover;
    z-index: 1;
}

.wave-divider.reverse {
    transform: rotate(180deg);
    top: -80px;
}

/* 
=================================
  4. Header & Navigation
=================================
*/
.main-header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    background-color: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    box-shadow: var(--shadow-sm);
    transition: all var(--transition-medium);
}

.main-header.scrolled {
    box-shadow: var(--shadow-md);
}

.main-header .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: var(--header-height);
}

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

.logo {
    display: block;
    width: 150px;
    transition: transform var(--transition-fast);
}

.logo:hover {
    transform: scale(1.05);
}

.main-nav {
    display: flex;
    align-items: center;
}

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

.nav-list li {
    margin-left: var(--spacing-lg);
}

.nav-list li a {
    color: var(--gray-700);
    font-weight: 600;
    position: relative;
    padding: var(--spacing-xs) 0;
}

.nav-list li a::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background-color: var(--primary);
    transition: width var(--transition-fast);
}

.nav-list li a:hover,
.nav-list li a:focus {
    color: var(--primary);
}

.nav-list li a:hover::after,
.nav-list li a:focus::after {
    width: 100%;
}

.nav-list .cta-button {
    margin-left: var(--spacing-xl);
}

.nav-list .cta-button a {
    color: var(--white);
    padding: var(--spacing-sm) var(--spacing-lg);
}

.nav-list .cta-button a::after {
    display: none;
}

.menu-toggle {
    display: none;
    background: none;
    border: none;
    width: 30px;
    height: 24px;
    position: relative;
    cursor: pointer;
}

.menu-toggle span {
    display: block;
    position: absolute;
    height: 3px;
    width: 100%;
    background: var(--primary);
    border-radius: 3px;
    transition: all var(--transition-fast);
}

.menu-toggle span:nth-child(1) {
    top: 0;
}

.menu-toggle span:nth-child(2) {
    top: 10px;
}

.menu-toggle span:nth-child(3) {
    top: 20px;
}

.menu-toggle.active span:nth-child(1) {
    top: 10px;
    transform: rotate(45deg);
}

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

.menu-toggle.active span:nth-child(3) {
    top: 10px;
    transform: rotate(-45deg);
}

/* 
=================================
  5. Hero Section
=================================
*/
.hero {
    height: 100vh;
    min-height: 600px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, #e0f7ff 0%, #bbeaff 100%);
    position: relative;
    overflow: hidden;
    margin-top: var(--header-height);
}

.hero-content {
    text-align: center;
    max-width: 800px;
    margin: 0 auto;
    padding: var(--spacing-xl);
    position: relative;
    z-index: 2;
}

.hero h1 {
    margin-bottom: var(--spacing-md);
    color: var(--gray-900);
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

.water-drops-animation {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image: 
        radial-gradient(circle at 20% 30%, rgba(0, 157, 255, 0.1) 0%, rgba(0, 157, 255, 0) 25%),
        radial-gradient(circle at 80% 20%, rgba(0, 157, 255, 0.1) 0%, rgba(0, 157, 255, 0) 25%),
        radial-gradient(circle at 50% 60%, rgba(0, 157, 255, 0.1) 0%, rgba(0, 157, 255, 0) 25%);
    z-index: 1;
    pointer-events: none;
}

.water-drops-animation::before,
.water-drops-animation::after {
    content: '';
    position: absolute;
    background-image: url("images/water.jpg");
    background-repeat: repeat;
    width: 100%;
    height: 100%;
    animation: rain 10s linear infinite;
    opacity: 0.7;
}

.water-drops-animation::after {
    animation-duration: 15s;
    animation-delay: -5s;
    transform: scale(0.8) rotate(15deg);
    opacity: 0.5;
}

@keyframes rain {
    0% {
        background-position: 0 -100%;
    }
    100% {
        background-position: 0 100%;
    }
}

/* 
=================================
  6. Section Styles
=================================
*/

/* 6.1 Importance Section */
.importance-section {
    background: linear-gradient(180deg, var(--white) 0%, var(--gray-100) 100%);
    z-index: 2;
}

.benefits-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-xl);
    margin-top: var(--spacing-xxl);
}

.benefit-card {
    background: var(--white);
    border-radius: var(--border-radius-lg);
    padding: var(--spacing-xl);
    box-shadow: var(--shadow-md);
    transition: transform var(--transition-medium), box-shadow var(--transition-medium);
    text-align: center;
}

.benefit-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-lg);
}

.icon-container {
    width: 80px;
    height: 80px;
    margin: 0 auto var(--spacing-lg);
    display: flex;
    align-items: center;
    justify-content: center;
}

.benefit-icon {
    width: 100%;
    height: 100%;
}

.benefit-card h3 {
    margin-bottom: var(--spacing-md);
    color: var(--primary-dark);
}

/* 6.2 Timing Section */
.timing-section {
    background-color: var(--white);
    position: relative;
}

.timeline-container {
    margin: var(--spacing-xxl) 0;
}

.timeline {
    display: flex;
    justify-content: space-between;
    position: relative;
    max-width: 900px;
    margin: 0 auto;
}

.timeline::before {
    content: '';
    position: absolute;
    top: 30px;
    left: 0;
    width: 100%;
    height: 4px;
    background: linear-gradient(90deg, var(--primary-light), var(--primary), var(--primary-dark));
    border-radius: var(--border-radius-lg);
}

.timeline-item {
    flex: 1;
    text-align: center;
    padding: 0 var(--spacing-sm);
    position: relative;
}

.timeline-marker {
    width: 24px;
    height: 24px;
    background-color: var(--white);
    border: 4px solid var(--primary);
    border-radius: var(--border-radius-round);
    margin: 0 auto var(--spacing-md);
    position: relative;
    z-index: 2;
    transition: all var(--transition-medium);
}

.timeline-item h3 {
    margin-bottom: var(--spacing-md);
    transition: color var(--transition-medium);
}

.timeline-content {
    background-color: var(--white);
    border-radius: var(--border-radius-md);
    padding: var(--spacing-md);
    box-shadow: var(--shadow-sm);
    transition: all var(--transition-medium);
}

.timeline-item.active .timeline-marker,
.timeline-item:hover .timeline-marker {
    background-color: var(--primary);
    transform: scale(1.2);
}

.timeline-item.active h3,
.timeline-item:hover h3 {
    color: var(--primary);
}

.timeline-item.active .timeline-content,
.timeline-item:hover .timeline-content {
    box-shadow: var(--shadow-md);
}

.tooltip {
    position: relative;
    display: inline-block;
    margin-top: var(--spacing-sm);
}

.tooltip-trigger {
    color: var(--primary);
    font-weight: 600;
    cursor: pointer;
    border-bottom: 1px dotted var(--primary);
    font-size: 0.9rem;
}

.tooltip-content {
    position: absolute;
    bottom: 100%;
    left: 50%;
    transform: translateX(-50%);
    width: 200px;
    background-color: var(--gray-800);
    color: var(--white);
    text-align: center;
    padding: var(--spacing-sm);
    border-radius: var(--border-radius-sm);
    font-size: 0.85rem;
    z-index: 10;
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-fast);
}

.tooltip-content::after {
    content: '';
    position: absolute;
    top: 100%;
    left: 50%;
    margin-left: -5px;
    border-width: 5px;
    border-style: solid;
    border-color: var(--gray-800) transparent transparent transparent;
}

.tooltip:hover .tooltip-content {
    opacity: 1;
    visibility: visible;
    bottom: 125%;
}

.hydration-calculator {
    margin-top: var(--spacing-xxl);
    background-color: var(--primary-light);
    border-radius: var(--border-radius-lg);
    padding: var(--spacing-xl);
    box-shadow: var(--shadow-md);
}

.hydration-calculator h3 {
    text-align: center;
    margin-bottom: var(--spacing-lg);
    color: var(--primary-dark);
}

.hydration-table {
    width: 100%;
    border-collapse: collapse;
}

.hydration-table th,
.hydration-table td {
    padding: var(--spacing-md);
    text-align: left;
    border-bottom: 1px solid var(--gray-300);
}

.hydration-table th {
    background-color: var(--primary);
    color: var(--white);
    font-weight: 600;
}

.hydration-table th:first-child {
    border-top-left-radius: var(--border-radius-sm);
}

.hydration-table th:last-child {
    border-top-right-radius: var(--border-radius-sm);
}

.hydration-table tr:last-child td {
    border-bottom: none;
}

.hydration-table tr:hover td {
    background-color: rgba(255, 255, 255, 0.7);
}

/* 6.3 Tips Section */
.tips-section {
    background: linear-gradient(180deg, var(--gray-100) 0%, var(--white) 100%);
    position: relative;
    z-index: 1;
}

.tips-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-lg);
    margin-top: var(--spacing-xl);
}

.tip-card {
    height: 350px;
    perspective: 1000px;
    position: relative;
}

.tip-front,
.tip-back {
    position: absolute;
    width: 100%;
    height: 100%;
    backface-visibility: hidden;
    transition: transform var(--transition-slow);
    border-radius: var(--border-radius-lg);
    overflow: hidden;
}

.tip-front {
    background-color: var(--white);
    box-shadow: var(--shadow-md);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: flex-end;
    transform: rotateY(0deg);
}

.tip-back {
    background-color: var(--primary);
    color: var(--white);
    padding: var(--spacing-xl);
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    text-align: center;
    transform: rotateY(180deg);
    box-shadow: var(--shadow-lg);
}

.tip-card:hover .tip-front {
    transform: rotateY(180deg);
}

.tip-card:hover .tip-back {
    transform: rotateY(0deg);
}

.tip-image {
    width: 100%;
    height: 70%;
    object-fit: cover;
}

.tip-front h3 {
    padding: var(--spacing-md);
    text-align: center;
    width: 100%;
    margin-bottom: 0;
    background-color: rgba(255, 255, 255, 0.9);
}

.tip-back .learn-more {
    margin-top: var(--spacing-lg);
    color: var(--white);
    font-weight: 600;
    border-bottom: 2px solid var(--white);
    padding-bottom: 2px;
}

.tip-back .learn-more:hover {
    color: var(--gray-100);
}

/* 6.4 Mistakes Section */
.mistakes-section {
    background-color: var(--gray-800);
    color: var(--white);
}

.mistakes-section h2,
.mistakes-section .section-intro {
    color: var(--white);
}

.accordion-container {
    margin-top: var(--spacing-xl);
    max-width: 900px;
    margin-left: auto;
    margin-right: auto;
}

.accordion-item {
    background-color: rgba(255, 255, 255, 0.05);
    border-radius: var(--border-radius-md);
    margin-bottom: var(--spacing-md);
    overflow: hidden;
}

.accordion-header {
    padding: var(--spacing-lg);
    display: flex;
    align-items: center;
    cursor: pointer;
    transition: background-color var(--transition-fast);
}

.accordion-header:hover {
    background-color: rgba(255, 255, 255, 0.1);
}

.mistake-icon {
    width: 40px;
    height: 40px;
    margin-right: var(--spacing-md);
    flex-shrink: 0;
}

.accordion-header h3 {
    margin-bottom: 0;
    color: var(--white);
    flex-grow: 1;
}

.accordion-icon {
    width: 20px;
    height: 20px;
    position: relative;
}

.accordion-icon::before,
.accordion-icon::after {
    content: '';
    position: absolute;
    background-color: var(--primary);
    transition: all var(--transition-fast);
}

.accordion-icon::before {
    width: 20px;
    height: 2px;
    top: 9px;
    left: 0;
}

.accordion-icon::after {
    width: 2px;
    height: 20px;
    top: 0;
    left: 9px;
}

.accordion-item.active .accordion-icon::after {
    transform: rotate(90deg);
    opacity: 0;
}

.accordion-content {
    padding: 0 var(--spacing-lg) var(--spacing-lg) calc(40px + var(--spacing-lg) * 2);
    max-height: 0;
    overflow: hidden;
    transition: max-height var(--transition-medium);
}

.accordion-item.active .accordion-content {
    max-height: 500px;
}

/* 6.5 Hydration Test Section */
.hydration-test-section {
    background: linear-gradient(135deg, var(--white) 0%, var(--primary-light) 100%);
    position: relative;
    z-index: 2;
}

.hydration-scale-container {
    max-width: 800px;
    margin: var(--spacing-xxl) auto;
    background-color: var(--white);
    border-radius: var(--border-radius-lg);
    padding: var(--spacing-xl);
    box-shadow: var(--shadow-md);
}

.hydration-scale {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: var(--spacing-xl);
}

.scale-item {
    flex: 1;
    text-align: center;
    padding: 0 var(--spacing-xs);
}

.color-sample {
    height: 80px;
    border-radius: var(--border-radius-md);
    margin-bottom: var(--spacing-sm);
    transition: transform var(--transition-fast);
}

.scale-item[data-level="1"] .color-sample {
    background-color: #E1F5FF;
}

.scale-item[data-level="2"] .color-sample {
    background-color: #9FDBFF;
}

.scale-item[data-level="3"] .color-sample {
    background-color: #66BDFF;
}

.scale-item[data-level="4"] .color-sample {
    background-color: #3393FF;
}

.scale-item[data-level="5"] .color-sample {
    background-color: #0070E0;
}

.scale-item:hover .color-sample {
    transform: scale(1.05);
}

.scale-description {
    display: flex;
    flex-direction: column;
}

.level {
    font-weight: 600;
    color: var(--gray-700);
}

.status {
    font-size: 0.85rem;
    color: var(--gray-600);
}

.scale-info {
    text-align: center;
    color: var(--gray-700);
    font-size: 0.9rem;
    padding-top: var(--spacing-lg);
    border-top: 1px solid var(--gray-300);
}

.cta-box {
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
    color: var(--white);
    border-radius: var(--border-radius-lg);
    padding: var(--spacing-xl);
    text-align: center;
    box-shadow: var(--shadow-lg);
    margin-top: var(--spacing-xxl);
}

.cta-box h3 {
    color: var(--white);
    margin-bottom: var(--spacing-md);
}

.cta-box p {
    margin-bottom: var(--spacing-lg);
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

/* 6.6 Product Banner */
.product-banner {
    background-color: var(--white);
    overflow: hidden;
}

.product-showcase {
    display: flex;
    align-items: center;
    gap: var(--spacing-xxl);
}

.product-images {
    flex: 1;
    position: relative;
    height: 500px;
}

.product-image {
    position: absolute;
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-lg);
    transition: all var(--transition-medium);
}

.main-product {
    width: 60%;
    height: auto;
    top: 50%;
    left: 10%;
    transform: translateY(-50%);
    z-index: 3;
}

.secondary-product {
    width: 45%;
    height: auto;
    top: 20%;
    right: 5%;
    z-index: 2;
}

.tertiary-product {
    width: 40%;
    height: auto;
    bottom: 10%;
    right: 15%;
    z-index: 1;
}

.product-showcase:hover .main-product {
    transform: translateY(-50%) translateX(-10px);
}

.product-showcase:hover .secondary-product {
    transform: translateY(-10px) translateX(10px);
}

.product-showcase:hover .tertiary-product {
    transform: translateY(10px) translateX(10px);
}

.product-info {
    flex: 1;
    padding: var(--spacing-xl);
}

.product-features {
    list-style: none;
    margin: var(--spacing-lg) 0;
}

.product-features li {
    margin-bottom: var(--spacing-md);
    padding-left: 30px;
    position: relative;
}

.product-features li::before {
    content: '';
    position: absolute;
    left: 0;
    top: 6px;
    width: 18px;
    height: 18px;
    background-image: url("images/pro.jpg");
    background-size: contain;
    background-repeat: no-repeat;
}

.certification-logos {
    display: flex;
    align-items: center;
    margin-top: var(--spacing-xl);
    gap: var(--spacing-lg);
}

.cert-logo {
    height: 50px;
    opacity: 0.7;
    transition: opacity var(--transition-fast);
}

.cert-logo:hover {
    opacity: 1;
}

/* 6.7 Reviews Section */
.reviews-section {
    background: linear-gradient(135deg, var(--gray-100) 0%, var(--white) 100%);
    position: relative;
    z-index: 1;
}

.reviews-slider {
    position: relative;
    max-width: 800px;
    margin: var(--spacing-xxl) auto var(--spacing-lg);
    height: 300px;
}

.review-card {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: var(--white);
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-md);
    display: flex;
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-medium);
    transform: translateX(30px);
}

.review-card.active {
    opacity: 1;
    visibility: visible;
    transform: translateX(0);
}

.review-image {
    width: 35%;
    overflow: hidden;
    border-top-left-radius: var(--border-radius-lg);
    border-bottom-left-radius: var(--border-radius-lg);
}

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

.review-content {
    width: 65%;
    padding: var(--spacing-xl);
    display: flex;
    flex-direction: column;
}

.review-header {
    margin-bottom: var(--spacing-md);
}

.review-header h3 {
    margin-bottom: 0;
}

.sport-type {
    font-size: 0.9rem;
    color: var(--gray-600);
}

.review-text {
    font-style: italic;
    margin-bottom: var(--spacing-lg);
    flex-grow: 1;
}

.drop-rating {
    display: flex;
    gap: var(--spacing-xs);
}

.drop {
    width: 20px;
    height: 30px;
    background-image: url("images/drop.jpg");
    background-repeat: no-repeat;
    transition: all var(--transition-fast);
}

.drop.filled {
    background-image: url("images/fill.jpg");
}

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

.slider-arrow {
    background: none;
    border: none;
    color: var(--primary);
    width: 40px;
    height: 40px;
    border-radius: var(--border-radius-round);
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all var(--transition-fast);
}

.slider-arrow:hover {
    background-color: var(--primary-light);
}

.slider-arrow svg {
    width: 24px;
    height: 24px;
}

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

.dot {
    width: 10px;
    height: 10px;
    border-radius: var(--border-radius-round);
    background-color: var(--gray-300);
    cursor: pointer;
    transition: all var(--transition-fast);
}

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

/* 6.8 PDF Signup Section */
.pdf-signup-section {
    background-color: var(--gray-100);
}

.signup-content {
    display: flex;
    align-items: center;
    gap: var(--spacing-xxl);
    max-width: 1000px;
    margin: 0 auto;
}

.pdf-preview {
    flex: 1;
    position: relative;
}

.pdf-cover {
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-xl);
    transition: transform var(--transition-medium);
}

.pdf-preview:hover .pdf-cover {
    transform: translateY(-10px) rotate(2deg);
}

.signup-form-container {
    flex: 1;
    padding: var(--spacing-xl);
    background-color: var(--white);
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-md);
}

.signup-form-container h2 {
    margin-bottom: var(--spacing-md);
}

.signup-form-container p {
    margin-bottom: var(--spacing-lg);
}

/* 6.9 Contact Section */
.contact-section {
    background: linear-gradient(135deg, var(--primary-light) 0%, var(--white) 100%);
    position: relative;
    z-index: 2;
}

.contact-container {
    display: flex;
    gap: var(--spacing-xxl);
    margin-bottom: var(--spacing-xxl);
}

.contact-info,
.contact-form-container {
    flex: 1;
}

.contact-detail {
    display: flex;
    align-items: flex-start;
    margin-bottom: var(--spacing-lg);
}

.contact-detail .icon {
    width: 24px;
    height: 24px;
    margin-right: var(--spacing-md);
    flex-shrink: 0;
}

.contact-detail h3 {
    margin-bottom: var(--spacing-xs);
    color: var(--primary-dark);
}

.map-container {
    height: 400px;
    border-radius: var(--border-radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-md);
}

/* 
=================================
  7. Forms
=================================
*/
.form-group {
    margin-bottom: var(--spacing-md);
}

label {
    display: block;
    margin-bottom: var(--spacing-xs);
    font-weight: 600;
    color: var(--gray-700);
}

input[type="text"],
input[type="email"],
input[type="tel"],
select,
textarea {
    width: 100%;
    padding: var(--spacing-md);
    border: 1px solid var(--gray-300);
    border-radius: var(--border-radius-md);
    font-family: var(--font-body);
    font-size: 1rem;
    transition: border-color var(--transition-fast);
}

input[type="text"]:focus,
input[type="email"]:focus,
input[type="tel"]:focus,
select:focus,
textarea:focus {
    border-color: var(--primary);
    outline: none;
    box-shadow: 0 0 0 3px rgba(0, 157, 255, 0.2);
}

textarea {
    resize: vertical;
    min-height: 100px;
}

.checkbox-group {
    display: flex;
    align-items: flex-start;
}

.checkbox-group input[type="checkbox"] {
    margin-top: 0.3rem;
    margin-right: var(--spacing-sm);
}

.checkbox-group label {
    font-weight: 400;
    font-size: 0.9rem;
    margin-bottom: 0;
}

/* Newsletter Form */
.newsletter-container {
    background: linear-gradient(135deg, var(--primary-dark) 0%, var(--primary) 100%);
    border-radius: var(--border-radius-lg);
    padding: var(--spacing-xl);
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--spacing-xl);
}

.newsletter-content {
    flex: 1;
}

.newsletter-content h3 {
    color: var(--white);
    margin-bottom: var(--spacing-sm);
}

.newsletter-content p {
    color: var(--gray-100);
    margin-bottom: 0;
}

.newsletter-form {
    flex: 1;
}

.newsletter-form .form-group {
    display: flex;
}

.newsletter-form input[type="email"] {
    flex-grow: 1;
    border-top-right-radius: 0;
    border-bottom-right-radius: 0;
    border: none;
}

.newsletter-form button {
    border-top-left-radius: 0;
    border-bottom-left-radius: 0;
}

.newsletter-form .checkbox-group label {
    color: var(--white);
}

/* 
=================================
  8. Buttons
=================================
*/
.btn {
    display: inline-block;
    padding: var(--spacing-md) var(--spacing-xl);
    background-color: var(--primary);
    color: var(--white);
    font-weight: 600;
    border-radius: var(--border-radius-md);
    border: none;
    cursor: pointer;
    transition: all var(--transition-fast);
    text-align: center;
    font-family: var(--font-body);
    font-size: 1rem;
}

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

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

.btn:focus {
    outline: none;
    box-shadow: 0 0 0 3px rgba(0, 157, 255, 0.3);
}

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

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

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

.btn-hero {
    font-size: 1.1rem;
    padding: var(--spacing-md) var(--spacing-xxl);
    box-shadow: var(--shadow-md);
    animation: pulse 2s infinite;
}

@keyframes pulse {
    0% {
        box-shadow: 0 0 0 0 rgba(0, 157, 255, 0.7);
    }
    70% {
        box-shadow: 0 0 0 10px rgba(0, 157, 255, 0);
    }
    100% {
        box-shadow: 0 0 0 0 rgba(0, 157, 255, 0);
    }
}

/* 
=================================
  9. Cards & Components
=================================
*/
/* Defined in respective section styles */

/* 
=================================
  10. Animations
=================================
*/
@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.fade-in {
    animation: fadeIn 0.8s ease-out forwards;
}

/* 
=================================
  11. Footer
=================================
*/
.main-footer {
    background-color: var(--gray-900);
    color: var(--gray-300);
}

.newsletter-section {
    padding: var(--spacing-xxl) 0;
    background-color: var(--gray-800);
}

.footer-main {
    padding: var(--spacing-xxl) 0;
}

.footer-columns {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-xxl);
}

.footer-column {
    flex: 1;
    min-width: 200px;
}

.brand-column {
    flex: 2;
}

.footer-logo {
    display: block;
    width: 150px;
    margin-bottom: var(--spacing-md);
    filter: brightness(0.9);
}

.footer-tagline {
    color: var(--gray-400);
    margin-bottom: var(--spacing-md);
}

.copyright {
    font-size: 0.85rem;
    color: var(--gray-600);
}

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

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

.footer-links li {
    margin-bottom: var(--spacing-sm);
}

.footer-links a {
    color: var(--gray-400);
    transition: color var(--transition-fast);
}

.footer-links a:hover,
.footer-links a.active {
    color: var(--primary);
}

.footer-contact {
    list-style: none;
}

.footer-contact li {
    display: flex;
    align-items: center;
    margin-bottom: var(--spacing-md);
}

.footer-contact .icon {
    width: 18px;
    height: 18px;
    margin-right: var(--spacing-sm);
    stroke: var(--gray-400);
}

/* 
=================================
  12. Policy Pages
=================================
*/
.policy-page {
    background-color: var(--gray-100);
}

.policy-section {
    padding-top: calc(var(--header-height) + var(--spacing-xxl));
    padding-bottom: var(--spacing-xxl);
}

.policy-header {
    text-align: center;
    margin-bottom: var(--spacing-xxl);
}

.policy-header h1 {
    margin-bottom: var(--spacing-sm);
}

.last-updated {
    color: var(--gray-600);
    font-size: 0.9rem;
}

.policy-content {
    background-color: var(--white);
    border-radius: var(--border-radius-lg);
    padding: var(--spacing-xl);
    box-shadow: var(--shadow-md);
}

.policy-intro {
    font-size: 1.1rem;
    margin-bottom: var(--spacing-xl);
    color: var(--gray-700);
}

.policy-block {
    margin-bottom: var(--spacing-xl);
}

.policy-block:last-child {
    margin-bottom: 0;
}

.policy-block h2 {
    color: var(--primary-dark);
    font-size: 1.5rem;
    margin-bottom: var(--spacing-md);
    padding-bottom: var(--spacing-sm);
    border-bottom: 1px solid var(--gray-200);
}

.policy-block h3 {
    font-size: 1.2rem;
    margin-top: var(--spacing-lg);
    margin-bottom: var(--spacing-sm);
}

.policy-block ul,
.policy-block ol {
    margin-bottom: var(--spacing-md);
}

.policy-block li {
    margin-bottom: var(--spacing-xs);
}

/* 
=================================
  13. Success Page
=================================
*/
.success-section {
    min-height: 70vh;
    display: flex;
    align-items: center;
    padding-top: var(--header-height);
    background: linear-gradient(135deg, var(--white) 0%, var(--primary-light) 100%);
}

.success-content {
    max-width: 600px;
    margin: 0 auto;
    text-align: center;
    background-color: var(--white);
    padding: var(--spacing-xxl);
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-md);
}

.success-icon {
    width: 80px;
    height: 80px;
    margin: 0 auto var(--spacing-lg);
}

.success-message {
    font-size: 1.2rem;
    margin-bottom: var(--spacing-xl);
}

.download-container {
    margin: var(--spacing-xl) 0;
    padding: var(--spacing-lg);
    background-color: var(--primary-light);
    border-radius: var(--border-radius-md);
}

.back-home {
    margin-top: var(--spacing-xl);
}

.success-drops {
    z-index: 0;
}

/* 
=================================
  14. Media Queries
=================================
*/
/* Tablet Landscape */
@media (max-width: 1024px) {
    :root {
        --header-height: 70px;
    }
    
    h1 {
        font-size: 2.5rem;
    }
    
    h2 {
        font-size: 2rem;
    }
    
    .benefits-grid,
    .tips-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .timeline {
        flex-direction: column;
        max-width: 500px;
    }
    
    .timeline::before {
        top: 0;
        left: 30px;
        width: 4px;
        height: 100%;
    }
    
    .timeline-item {
        text-align: left;
        padding-left: 60px;
        margin-bottom: var(--spacing-lg);
    }
    
    .timeline-marker {
        position: absolute;
        left: 20px;
        top: 0;
    }
    
    .product-showcase {
        flex-direction: column;
    }
    
    .product-images {
        order: 2;
    }
    
    .product-info {
        order: 1;
    }
    
    .signup-content,
    .contact-container {
        flex-direction: column;
    }
    
    .newsletter-container {
        flex-direction: column;
        text-align: center;
    }
    
    .newsletter-content {
        margin-bottom: var(--spacing-lg);
    }
}

/* Tablet Portrait */
@media (max-width: 768px) {
    :root {
        --header-height: 60px;
    }
    
    h1 {
        font-size: 2.25rem;
    }
    
    h2 {
        font-size: 1.75rem;
    }
    
    .main-header .container {
        height: var(--header-height);
    }
    
    .menu-toggle {
        display: block;
        z-index: 1001;
    }
    
    .nav-list {
        position: fixed;
        top: 0;
        right: -100%;
        width: 80%;
        max-width: 350px;
        height: 100vh;
        background-color: var(--white);
        flex-direction: column;
        padding: calc(var(--header-height) + var(--spacing-lg)) var(--spacing-lg) var(--spacing-lg);
        box-shadow: var(--shadow-lg);
        transition: right var(--transition-medium);
        z-index: 1000;
    }
    
    .nav-list.active {
        right: 0;
    }
    
    .nav-list li {
        margin: 0 0 var(--spacing-md);
    }
    
    .nav-list .cta-button {
        margin: var(--spacing-lg) 0 0;
    }
    
    .benefits-grid,
    .tips-grid {
        grid-template-columns: 1fr;
        gap: var(--spacing-md);
    }
    
    .hydration-scale {
        flex-direction: column;
        gap: var(--spacing-md);
    }
    
    .scale-item {
        width: 100%;
        display: flex;
        align-items: center;
    }
    
    .color-sample {
        width: 40px;
        height: 40px;
        margin-right: var(--spacing-md);
        margin-bottom: 0;
    }
    
    .review-card {
        flex-direction: column;
        height: auto;
    }
    
    .review-image {
        width: 100%;
        height: 200px;
        border-top-left-radius: var(--border-radius-lg);
        border-top-right-radius: var(--border-radius-lg);
        border-bottom-left-radius: 0;
    }
    
    .review-content {
        width: 100%;
    }
    
    .reviews-slider {
        height: 480px;
    }
    
    .footer-columns {
        flex-direction: column;
        gap: var(--spacing-xl);
    }
}

/* Mobile */
@media (max-width: 480px) {
    h1 {
        font-size: 2rem;
    }
    
    h2 {
        font-size: 1.5rem;
    }
    
    .hero {
        min-height: 500px;
    }
    
    .hydration-table {
        font-size: 0.85rem;
    }
    
    .hydration-table th,
    .hydration-table td {
        padding: var(--spacing-sm);
    }
    
    .newsletter-form .form-group {
        flex-direction: column;
    }
    
    .newsletter-form input[type="email"] {
        border-radius: var(--border-radius-md);
        margin-bottom: var(--spacing-sm);
    }
    
    .newsletter-form button {
        width: 100%;
        border-radius: var(--border-radius-md);
    }
    
    .policy-content {
        padding: var(--spacing-lg);
    }
    
    .success-content {
        padding: var(--spacing-xl);
    }
}