/* ===================================
   CSS Reset & Base Styles
   =================================== */

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

:root {
    /* Color Palette */
    --primary-blue: #1e3a8a;
    --secondary-cyan: #06b6d4;
    --accent-green: #10b981;
    --light-bg: #f8fafc;
    --white: #ffffff;
    --text-dark: #1f2937;
    --text-gray: #6b7280;
    --border-light: #e5e7eb;

    /* Typography */
    --font-sans: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;

    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 2rem;
    --spacing-lg: 4rem;
    --spacing-xl: 6rem;

    /* Container */
    --container-max: 1200px;

    /* Transitions */
    --transition-fast: 0.2s ease;
    --transition-normal: 0.3s ease;
    --transition-slow: 0.5s ease;
}

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

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

.container {
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

/* ===================================
   Typography
   =================================== */

h1, h2, h3, h4, h5, h6 {
    line-height: 1.2;
    font-weight: 700;
    margin-bottom: 1rem;
}

h1 { font-size: clamp(2rem, 5vw, 3.5rem); }
h2 { font-size: clamp(1.75rem, 4vw, 2.5rem); }
h3 { font-size: clamp(1.25rem, 3vw, 1.75rem); }
h4 { font-size: 1.25rem; }

p {
    margin-bottom: 1rem;
}

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

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

/* ===================================
   Section Styles
   =================================== */

section {
    padding: var(--spacing-xl) 0;
    opacity: 0;
    animation: fadeIn 0.8s ease forwards;
}

@keyframes fadeIn {
    to { opacity: 1; }
}

.section-title {
    text-align: center;
    margin-bottom: var(--spacing-md);
    color: var(--primary-blue);
}

.section-intro {
    text-align: center;
    max-width: 900px;
    margin: 0 auto var(--spacing-lg);
    font-size: 1.1rem;
    color: var(--text-gray);
}

/* ===================================
   Hero Section
   =================================== */

.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, #1e3a8a 0%, #06b6d4 100%);
    color: var(--white);
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background:
        radial-gradient(circle at 20% 50%, rgba(255,255,255,0.1) 0%, transparent 50%),
        radial-gradient(circle at 80% 80%, rgba(255,255,255,0.1) 0%, transparent 50%);
    pointer-events: none;
}

.hero .container {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-lg);
    align-items: center;
    position: relative;
    z-index: 1;
}

.hero-content {
    text-align: center;
    animation: slideUp 0.8s ease;
}

@keyframes slideUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.hero-title {
    color: var(--white);
    margin-bottom: var(--spacing-md);
    font-weight: 800;
    line-height: 1.1;
}

.hero-subtitle {
    font-size: 1.25rem;
    margin-bottom: var(--spacing-lg);
    opacity: 0.95;
    max-width: 700px;
    margin-left: auto;
    margin-right: auto;
}

.hero-visual {
    display: flex;
    justify-content: center;
    align-items: center;
    margin-top: var(--spacing-lg);
}

.water-drop {
    width: 200px;
    height: 280px;
    background: rgba(255, 255, 255, 0.2);
    border-radius: 50% 50% 50% 0;
    transform: rotate(135deg);
    animation: float 3s ease-in-out infinite;
    backdrop-filter: blur(10px);
    border: 2px solid rgba(255, 255, 255, 0.3);
}

@keyframes float {
    0%, 100% { transform: rotate(135deg) translateY(0); }
    50% { transform: rotate(135deg) translateY(-20px); }
}

.scroll-indicator {
    position: absolute;
    bottom: 40px;
    left: 50%;
    transform: translateX(-50%);
    text-align: center;
    color: var(--white);
    opacity: 0.8;
    animation: fadeIn 1s ease 1s forwards;
    opacity: 0;
}

.scroll-indicator span {
    display: block;
    font-size: 0.9rem;
    margin-bottom: 0.5rem;
}

.scroll-arrow {
    width: 24px;
    height: 24px;
    border-left: 2px solid var(--white);
    border-bottom: 2px solid var(--white);
    transform: rotate(-45deg);
    margin: 0 auto;
    animation: bounce 2s infinite;
}

@keyframes bounce {
    0%, 20%, 50%, 80%, 100% { transform: rotate(-45deg) translateY(0); }
    40% { transform: rotate(-45deg) translateY(10px); }
    60% { transform: rotate(-45deg) translateY(5px); }
}

/* ===================================
   Buttons
   =================================== */

.cta-button {
    display: inline-block;
    padding: 1rem 2.5rem;
    background: var(--white);
    color: var(--primary-blue);
    font-weight: 600;
    font-size: 1.1rem;
    border-radius: 50px;
    transition: all var(--transition-normal);
    box-shadow: 0 4px 15px rgba(0,0,0,0.2);
    border: 2px solid transparent;
    text-decoration: underline 1px;
}

.cta-button:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(0,0,0,0.3);
    color: var(--primary-blue);
}

.cta-button.large {
    padding: 1.25rem 3rem;
    font-size: 1.25rem;
}

/* ===================================
   Problem Section
   =================================== */

.problem {
    background: var(--white);
}

.problem-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-md);
    margin-top: var(--spacing-lg);
}

.problem-card {
    background: var(--light-bg);
    padding: var(--spacing-md);
    border-radius: 12px;
    transition: all var(--transition-normal);
    border: 2px solid var(--border-light);
    position: relative;
    overflow: hidden;
}

.problem-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 4px;
    background: linear-gradient(90deg, var(--primary-blue), var(--secondary-cyan));
    transform: scaleX(0);
    transition: transform var(--transition-normal);
}

.problem-card:hover::before {
    transform: scaleX(1);
}

.problem-card:hover {
    transform: translateY(-8px);
    border-color: var(--secondary-cyan);
    box-shadow: 0 15px 50px rgba(6, 182, 212, 0.15);
}

.problem-stat {
    font-size: 4rem;
    font-weight: 800;
    color: var(--primary-blue);
    line-height: 1;
    margin-bottom: var(--spacing-sm);
    background: linear-gradient(135deg, var(--primary-blue), var(--secondary-cyan));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    position: relative;
    display: inline-block;
    padding: 0.5rem 1rem;
    border-radius: 12px;
}

.problem-stat::before {
    content: '';
    position: absolute;
    top: -10px;
    left: -10px;
    right: -10px;
    bottom: -10px;
    background: radial-gradient(ellipse at center, rgba(239, 68, 68, 0.25), rgba(220, 38, 38, 0.18), rgba(239, 68, 68, 0.08) 60%, transparent 80%);
    border-radius: 20px;
    z-index: -1;
    opacity: var(--bg-opacity, 0);
    transition: opacity 0.1s ease;
    filter: blur(8px);
    animation: problem-pulse 3s ease-in-out infinite;
}

@keyframes problem-pulse {
    0%, 100% {
        transform: scale(1);
        filter: blur(8px);
    }
    50% {
        transform: scale(1.05);
        filter: blur(10px);
    }
}

.problem-card h3 {
    color: var(--text-dark);
    margin-bottom: var(--spacing-sm);
}

.problem-card p {
    color: var(--text-gray);
    
}

.source-link {
    margin-top: var(--spacing-md);;
    font-size: 0.9rem;
    display: inline;
    color: var(--secondary-cyan);
    font-weight: 500;
}

.source-link::after {
    content: '→';
    margin-left: 0.5rem;
    transition: transform var(--transition-fast);
    display: inline-block;
}

.source-link:hover::after {
    transform: translateX(5px);
}

/* ===================================
   Why Fails Section
   =================================== */

.why-fails {
    background: linear-gradient(to bottom, var(--white), var(--light-bg));
}

.fail-content {
    max-width: 900px;
    margin: 0 auto;
}

.lead {
    font-size: 1.3rem;
    font-weight: 500;
    color: var(--text-dark);
    margin-bottom: var(--spacing-lg);
    text-align: center;
}

.fail-points {
    margin: var(--spacing-lg) 0;
}

.fail-point {
    display: flex;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-lg);
    padding: var(--spacing-md);
    background: var(--white);
    border-radius: 12px;
    border-left: 4px solid var(--primary-blue);
    transition: transform var(--transition-normal);
}

.fail-point:hover {
    transform: translateX(10px);
}

.fail-icon {
    font-size: 2.5rem;
    flex-shrink: 0;
}

.fail-point h4 {
    color: var(--primary-blue);
    margin-bottom: var(--spacing-xs);
}

.fail-point p {
    color: var(--text-gray);
    margin-bottom: 0;
}

.research-quote {
    background: var(--white);
    padding: var(--spacing-lg);
    border-left: 4px solid var(--secondary-cyan);
    font-size: 1.2rem;
    font-style: italic;
    color: var(--text-dark);
    margin-top: var(--spacing-lg);
    border-radius: 8px;
    box-shadow: 0 4px 15px rgba(0,0,0,0.05);
}

.research-quote cite {
    display: block;
    margin-top: var(--spacing-sm);
    font-size: 0.9rem;
    font-style: normal;
    color: var(--text-gray);
}

/* ===================================
   Solution Section
   =================================== */

.solution {
    background: linear-gradient(180deg, var(--light-bg) 0%, var(--white) 100%);
    position: relative;
    padding: var(--spacing-lg) 0;
}

.solution::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--secondary-cyan), transparent);
}

.solution-header {
    text-align: center;
    margin-bottom: var(--spacing-lg);
    animation: fadeInUp 0.8s ease;
}

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

.solution-badge {
    display: inline-block;
    padding: 0.75rem 2rem;
    background: linear-gradient(135deg, var(--primary-blue), var(--secondary-cyan));
    color: var(--white);
    border-radius: 50px;
    font-weight: 700;
    font-size: 1rem;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    margin-bottom: var(--spacing-md);
    box-shadow: 0 4px 20px rgba(6, 182, 212, 0.3);
    animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {
    0%, 100% {
        box-shadow: 0 4px 20px rgba(6, 182, 212, 0.3);
    }
    50% {
        box-shadow: 0 4px 30px rgba(6, 182, 212, 0.5);
    }
}

.solution-header .section-title {
    font-size: clamp(3rem, 6vw, 4rem);
    margin-bottom: var(--spacing-md);
    color: var(--text-dark);
    font-weight: 700;
    line-height: 1.3;
}

.brand-highlight {
    display: inline-block;
    background: linear-gradient(135deg, var(--primary-blue), var(--secondary-cyan));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    font-weight: 800;
    font-size: 1.15em;
    position: relative;
}

.solution-header .section-intro {
    font-size: 1.3rem;
    color: var(--text-dark);
    font-weight: 500;
    margin-bottom: var(--spacing-sm);
}

.solution-header .section-intro:last-of-type {
    margin-bottom: var(--spacing-lg);
}

.section-claim {
    font-size: clamp(1.7rem, 4vw, 2.2rem);
    color: var(--primary-blue);
}

.solution-features {
    display: grid;
    gap: var(--spacing-md);
}

.feature-card {
    background: var(--white);
    padding: var(--spacing-md);
    border-radius: 12px;
    border: 2px solid var(--border-light);
    transition: all var(--transition-normal);
    position: relative;
    overflow: hidden;
}

.feature-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 4px;
    background: linear-gradient(90deg, var(--primary-blue), var(--secondary-cyan));
    transform: scaleX(0);
    transition: transform var(--transition-normal);
}

.feature-card:hover::before {
    transform: scaleX(1);
}

.feature-card:hover {
    border-color: var(--secondary-cyan);
    box-shadow: 0 15px 50px rgba(6, 182, 212, 0.15);
    transform: translateY(-8px);
}

.feature-card.featured {
    background: linear-gradient(135deg, var(--primary-blue) 0%, var(--secondary-cyan) 100%);
    color: var(--white);
    grid-column: 1 / -1;
    text-align: center;
    padding: var(--spacing-xl) var(--spacing-lg);
    box-shadow: 0 20px 60px rgba(6, 182, 212, 0.3);
    border: none;
    position: relative;
    overflow: hidden;
}

.feature-card.featured::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle, rgba(255,255,255,0.1) 0%, transparent 70%);
    animation: rotate 20s linear infinite;
}

@keyframes rotate {
    from {
        transform: rotate(0deg);
    }
    to {
        transform: rotate(360deg);
    }
}

.feature-card.featured h3 {
    color: var(--white);
    font-size: clamp(1.75rem, 4vw, 2.5rem);
    position: relative;
    z-index: 1;
    text-shadow: 0 2px 10px rgba(0,0,0,0.1);
}

.feature-card.featured p {
    position: relative;
    z-index: 1;
    font-size: 1.1rem;
}

.feature-badge {
    display: inline-block;
    padding: 0.6rem 1.5rem;
    background: rgba(255,255,255,0.25);
    border-radius: 50px;
    font-size: 0.9rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    margin-bottom: var(--spacing-md);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255,255,255,0.3);
    box-shadow: 0 4px 15px rgba(0,0,0,0.1);
}

.feature-number {
    display: inline-flex;
    width: 50px;
    height: 50px;
    background: linear-gradient(135deg, var(--primary-blue), var(--secondary-cyan));
    color: var(--white);
    border-radius: 50%;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    font-weight: 800;
    margin-bottom: var(--spacing-sm);
    box-shadow: 0 8px 25px rgba(6, 182, 212, 0.3);
    position: relative;
}

.feature-number::after {
    content: '';
    position: absolute;
    inset: -5px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--primary-blue), var(--secondary-cyan));
    opacity: 0.2;
    z-index: -1;
    animation: pulse-ring 2s ease-out infinite;
}

@keyframes pulse-ring {
    0% {
        transform: scale(1);
        opacity: 0.3;
    }
    100% {
        transform: scale(1.3);
        opacity: 0;
    }
}

.feature-card h3 {
    color: var(--primary-blue);
    font-size: 1.3rem;
    margin-bottom: var(--spacing-sm);
    font-weight: 700;
}

.feature-card p {
    font-size: 1rem;
    line-height: 1.6;
    color: var(--text-gray);
    margin-bottom: var(--spacing-sm);
}

.feature-list {
    list-style: none;
    margin-top: var(--spacing-sm);
}

.feature-list li {
    padding: 0.4rem 0;
    padding-left: 1.8rem;
    position: relative;
    color: var(--text-gray);
    font-size: 0.95rem;
    transition: all var(--transition-fast);
}

.feature-list li:hover {
    color: var(--text-dark);
    transform: translateX(5px);
}

.feature-list li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: var(--secondary-cyan);
    font-weight: 700;
    font-size: 1rem;
    width: 20px;
    height: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(6, 182, 212, 0.1);
    border-radius: 50%;
}

/* ===================================
   Certifications Section
   =================================== */

.certifications {
    background: var(--white);
    position: relative;
    padding: var(--spacing-lg) 0;
}

/* Featured Header - Industry First */
.cert-featured-header {
    text-align: center;
    margin-bottom: var(--spacing-xl);
    padding: var(--spacing-lg);
    background: linear-gradient(135deg, var(--primary-blue) 0%, var(--secondary-cyan) 100%);
    border-radius: 20px;
    position: relative;
    overflow: hidden;
    box-shadow: 0 20px 60px rgba(6, 182, 212, 0.25);
}

.cert-featured-header::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle, rgba(255,255,255,0.08) 0%, transparent 70%);
    animation: rotate 25s linear infinite;
}

.cert-industry-badge {
    display: inline-block;
    padding: 0.6rem 1.8rem;
    background: rgba(255,255,255,0.25);
    color: var(--white);
    border-radius: 50px;
    font-weight: 700;
    font-size: 0.95rem;
    text-transform: uppercase;
    letter-spacing: 0.12em;
    margin-bottom: var(--spacing-md);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255,255,255,0.3);
    box-shadow: 0 4px 15px rgba(0,0,0,0.1);
    position: relative;
    z-index: 1;
}

.cert-main-title {
    color: var(--white);
    font-size: clamp(1.75rem, 5vw, 2.75rem);
    font-weight: 800;
    margin-bottom: var(--spacing-md);
    position: relative;
    z-index: 1;
    text-shadow: 0 2px 15px rgba(0,0,0,0.15);
    line-height: 1.2;
}

.cert-featured-intro {
    color: rgba(255,255,255,0.95);
    font-size: 1.15rem;
    max-width: 800px;
    margin: 0 auto;
    position: relative;
    z-index: 1;
    line-height: 1.6;
}

.cert-section-subtitle {
    text-align: center;
    color: var(--primary-blue);
    font-size: 1.75rem;
    font-weight: 700;
    margin-bottom: var(--spacing-md);
    margin-top: var(--spacing-lg);
}

.cert-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-lg);
}

.cert-card {
    background: var(--light-bg);
    padding: var(--spacing-md);
    border-radius: 12px;
    text-align: center;
    transition: all var(--transition-normal);
    border: 2px solid var(--border-light);
    position: relative;
    overflow: hidden;
}

.cert-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 4px;
    background: linear-gradient(90deg, var(--primary-blue), var(--secondary-cyan));
    transform: scaleX(0);
    transition: transform var(--transition-normal);
}

.cert-card:hover::before {
    transform: scaleX(1);
}

.cert-card:hover {
    transform: translateY(-8px);
    border-color: var(--secondary-cyan);
    box-shadow: 0 15px 50px rgba(6, 182, 212, 0.15);
}

.cert-badge {
    display: inline-block;
    width: 80px;
    height: 80px;
    background: linear-gradient(135deg, var(--primary-blue), var(--secondary-cyan));
    color: var(--white);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 1rem;
    margin: 0 auto var(--spacing-md);
    border: 4px solid var(--white);
    box-shadow: 0 4px 15px rgba(0,0,0,0.1);
}

.cert-card h4 {
    color: var(--primary-blue);
    margin-bottom: var(--spacing-sm);
}

.cert-card p {
    color: var(--text-gray);
    font-size: 0.95rem;
    margin-bottom: 0;
}

.cert-footer {
    margin-top: var(--spacing-md);
    text-align: center;
}

.gold-seal {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-md);
    padding: var(--spacing-lg);
    background: var(--white);
    border-radius: 12px;
    color: var(--text-dark);
    max-width: 700px;
    transition: all var(--transition-normal);
    box-shadow: 0 8px 25px rgba(6, 182, 212, 0.15);
    border: 2px solid var(--border-light);
    position: relative;
    overflow: hidden;
}

.gold-seal::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 4px;
    background: linear-gradient(90deg, var(--primary-blue), var(--secondary-cyan));
    transform: scaleX(0);
    transition: transform var(--transition-normal);
}

.gold-seal:hover::before {
    transform: scaleX(1);
}

.gold-seal:hover {
    border-color: var(--secondary-cyan);
    box-shadow: 0 15px 50px rgba(6, 182, 212, 0.15);
}

.seal-icon {
    font-size: 3rem;
    flex-shrink: 0;
    position: relative;
    filter: drop-shadow(0 0 15px rgba(251, 191, 36, 0.6));
}

.gold-seal strong {
    display: block;
    font-size: 1.2rem;
    margin-bottom: 0.25rem;
    color: var(--text-dark);
}

.gold-seal p {
    margin: 0;
    color: var(--text-gray);
    font-size: 0.95rem;
    line-height: 1.5;
}

/* ===================================
   How It Works Section
   =================================== */

.how-it-works {
    background: var(--light-bg);
}

.works-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-xl);
}

.works-card {
    background: var(--white);
    padding: var(--spacing-lg);
    border-radius: 12px;
    text-align: center;
    position: relative;
    transition: transform var(--transition-normal);
}

.works-card:hover {
    transform: translateY(-5px);
}

.works-step {
    display: inline-block;
    padding: 0.5rem 1.5rem;
    background: linear-gradient(135deg, var(--primary-blue), var(--secondary-cyan));
    color: var(--white);
    border-radius: 50px;
    font-weight: 700;
    margin-bottom: var(--spacing-md);
    font-size: 0.9rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.works-card h3 {
    color: var(--primary-blue);
    margin-bottom: var(--spacing-sm);
}

.works-card p {
    color: var(--text-gray);
    margin-bottom: 0;
}

.maintenance-box {
    background: var(--white);
    padding: var(--spacing-xl);
    border-radius: 12px;
    margin-bottom: var(--spacing-lg);
    text-align: center;
    border: 2px solid var(--accent-green);
}

.maintenance-box h3 {
    color: var(--primary-blue);
    margin-bottom: var(--spacing-lg);
}

.maintenance-stats {
    display: flex;
    justify-content: center;
    gap: var(--spacing-xl);
    margin-bottom: var(--spacing-lg);
    flex-wrap: wrap;
}

.maintenance-stat {
    display: flex;
    flex-direction: column;
    align-items: center;
}

.big-number {
    font-size: 4rem;
    font-weight: 800;
    color: var(--accent-green);
    line-height: 1;
}

.maintenance-stat span:last-child {
    color: var(--text-gray);
    font-size: 0.9rem;
    margin-top: var(--spacing-xs);
}

.maintenance-note {
    color: var(--text-gray);
    max-width: 600px;
    margin: 0 auto;
}

.specs-box {
    background: var(--primary-blue);
    color: var(--white);
    padding: var(--spacing-lg);
    border-radius: 12px;
}

.specs-box h4 {
    color: var(--white);
    text-align: center;
    margin-bottom: var(--spacing-md);
    font-size: 1.5rem;
}

.specs-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--spacing-md);
}

.spec-item {
    color: var(--white);
}

.spec-item strong {
    display: block;
    margin-bottom: 0.25rem;
    color: var(--secondary-cyan);
}

/* ===================================
   Final CTA Section
   =================================== */

.final-cta {
    background: linear-gradient(135deg, var(--primary-blue) 0%, var(--secondary-cyan) 100%);
    color: var(--white);
    text-align: center;
}

.cta-content h2 {
    color: var(--white);
    margin-bottom: var(--spacing-md);
}

.cta-subtitle {
    font-size: 1.25rem;
    margin-bottom: var(--spacing-lg);
    opacity: 0.95;
}

.cta-benefits {
    display: flex;
    justify-content: center;
    gap: var(--spacing-md);
    flex-wrap: wrap;
    margin-bottom: var(--spacing-lg);
    font-weight: 500;
}

.cta-benefit {
    padding: 0.75rem 1.5rem;
    background: rgba(255,255,255,0.15);
    border-radius: 50px;
    backdrop-filter: blur(10px);
}

.final-cta .cta-button {
    margin-bottom: var(--spacing-md);
}

.cta-note {
    font-size: 0.95rem;
    opacity: 0.9;
    max-width: 600px;
    margin: 0 auto;
}

/* ===================================
   Footer
   =================================== */

.footer {
    background: var(--text-dark);
    color: var(--white);
    padding: var(--spacing-lg) 0 var(--spacing-md);
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-md);
}

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

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

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

.footer-links a {
    color: rgba(255,255,255,0.8);
    transition: color var(--transition-fast);
    font-size: 0.95rem;
    display: inline;
}

.footer-links a::after {
    content: '→';
    margin-left: 0.5rem;
    transition: transform var(--transition-fast);
    display: inline-block;
}

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

.footer-links a:hover::after {
    transform: translateX(5px);
}

.footer-section p {
    color: rgba(255,255,255,0.8);
    font-size: 0.95rem;
}

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

.footer-bottom p {
    color: rgba(255,255,255,0.7);
    font-size: 0.9rem;
    margin-bottom: var(--spacing-sm);
}

.disclaimer {
    font-size: 0.85rem !important;
    font-style: italic;
}

/* ===================================
   Contact Modal
   =================================== */

.modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 1000;
    overflow-y: auto;
}

.modal.active {
    display: block;
}

.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.7);
    backdrop-filter: blur(5px);
}

.modal-content {
    position: relative;
    max-width: 1200px;
    margin: 1.5rem auto;
    background: var(--white);
    border-radius: 16px;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
    animation: modalSlideIn 0.3s ease;
}

@keyframes modalSlideIn {
    from {
        opacity: 0;
        transform: translateY(-30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.modal-close {
    position: absolute;
    top: 1rem;
    right: 1rem;
    width: 40px;
    height: 40px;
    background: var(--white);
    border: 2px solid var(--border-light);
    border-radius: 50%;
    font-size: 24px;
    line-height: 1;
    cursor: pointer;
    transition: all var(--transition-fast);
    z-index: 10;
    color: var(--text-dark);
}

.modal-close:hover {
    background: var(--primary-blue);
    color: var(--white);
    transform: rotate(90deg);
    border-color: var(--primary-blue);
}

.modal-grid {
    display: grid;
    grid-template-columns: 400px 1fr;
    min-height: 600px;
}

/* Business Card - Left Side */
.business-card {
    background: linear-gradient(135deg, var(--primary-blue) 0%, var(--secondary-cyan) 100%);
    color: var(--white);
    padding: var(--spacing-xl) var(--spacing-lg);
    border-radius: 16px 0 0 16px;
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.business-card::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle, rgba(255,255,255,0.1) 0%, transparent 70%);
    animation: rotate 20s linear infinite;
}

.business-card-photo {
    position: relative;
    z-index: 1;
    margin-bottom: var(--spacing-md);
}

.business-card-photo img {
    width: 150px;
    height: 150px;
    border-radius: 50%;
    border: 4px solid rgba(255, 255, 255, 0.3);
    object-fit: cover;
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.2);
}

.business-card-info {
    position: relative;
    z-index: 1;
    width: 100%;
}

.business-card-info h3 {
    font-size: 1.75rem;
    margin-bottom: 0.5rem;
    color: var(--white);
}

.business-title {
    font-size: 1rem;
    opacity: 0.9;
    margin-bottom: var(--spacing-lg);
    font-weight: 500;
}

.contact-highlight {
    margin: var(--spacing-md) 0;
}

.contact-email {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.75rem 0;
}

.contact-icon {
    font-size: 1.25rem;
    width: 30px;
    flex-shrink: 0;
}

.contact-email a {
    color: var(--white);
    text-decoration: none;
    transition: opacity var(--transition-fast);
    font-size: 0.95rem;
}

.contact-email a:hover {
    opacity: 0.8;
}

.contact-website {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.75rem 0;
}

.contact-website a {
    color: var(--white);
    text-decoration: none;
    transition: opacity var(--transition-fast);
    font-size: 0.95rem;
}

.contact-website a:hover {
    opacity: 0.8;
}

.business-info-legal {
    margin-top: auto;
    width: 100%;
    text-align: left;
}

.legal-text {
    font-size: 0.75rem;
    line-height: 1.6;
    color: rgba(255, 255, 255, 0.6);
    margin-bottom: 0.35rem;
    font-weight: 400;
}

.legal-text:last-child {
    margin-bottom: 0;
}

.business-card-footer {
    margin-top: var(--spacing-lg);
    padding-top: var(--spacing-md);
    border-top: 1px solid rgba(255, 255, 255, 0.3);
    width: 100%;
}

.business-card-footer p {
    font-size: 0.9rem;
    margin-bottom: 0.5rem;
    opacity: 0.9;
}

/* Contact Form - Right Side */
.contact-form-container {
    padding: var(--spacing-md) var(--spacing-lg);
    overflow-y: auto;
    max-height: 85vh;
}

.contact-form-container h3 {
    color: var(--primary-blue);
    font-size: 1.4rem;
    margin-bottom: 0.15rem;
}

.form-subtitle {
    color: var(--text-gray);
    margin-bottom: var(--spacing-sm);
    font-size: 0.85rem;
}

.contact-form {
    display: flex;
    flex-direction: column;
    gap: 0.7rem;
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1rem;
}

.form-group {
    display: flex;
    flex-direction: column;
}

.form-group label {
    font-weight: 600;
    color: var(--text-dark);
    margin-bottom: 0.5rem;
    font-size: 0.9rem;
}

.form-group input,
.form-group select,
.form-group textarea {
    padding: 0.75rem;
    border: 2px solid var(--border-light);
    border-radius: 8px;
    font-size: 1rem;
    font-family: var(--font-sans);
    transition: all var(--transition-fast);
    background: var(--white);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--secondary-cyan);
    box-shadow: 0 0 0 3px rgba(6, 182, 212, 0.1);
}

.form-group textarea {
    resize: vertical;
    min-height: 80px;
}

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

.checkbox-label {
    display: flex;
    align-items: flex-start;
    gap: 0.75rem;
    cursor: pointer;
    font-weight: 400;
}

.checkbox-label input[type="checkbox"] {
    margin-top: 0.25rem;
    width: 18px;
    height: 18px;
    cursor: pointer;
}

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

.form-submit-btn {
    padding: 1rem 2rem;
    background: linear-gradient(135deg, var(--primary-blue), var(--secondary-cyan));
    color: var(--white);
    border: none;
    border-radius: 8px;
    font-size: 1.1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition-normal);
    box-shadow: 0 4px 15px rgba(6, 182, 212, 0.3);
}

.form-submit-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(6, 182, 212, 0.4);
}

.form-submit-btn:active {
    transform: translateY(0);
}

.form-privacy {
    font-size: 0.85rem;
    color: var(--text-gray);
    text-align: center;
    margin-top: 0.5rem;
}

/* ===================================
   Notification System
   =================================== */

.notification {
    position: fixed;
    top: 20px;
    right: 20px;
    z-index: 10000;
    min-width: 320px;
    max-width: 500px;
    padding: 1.25rem 1.5rem;
    border-radius: 12px;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.15);
    backdrop-filter: blur(10px);
    opacity: 0;
    transform: translateX(400px) scale(0.9);
    transition: all 0.4s cubic-bezier(0.68, -0.55, 0.265, 1.55);
    pointer-events: none;
}

.notification-show {
    opacity: 1;
    transform: translateX(0) scale(1);
    pointer-events: auto;
}

.notification-hide {
    opacity: 0;
    transform: translateX(400px) scale(0.9);
}

.notification-success {
    background: linear-gradient(135deg, rgba(16, 185, 129, 0.95), rgba(6, 182, 212, 0.95));
    color: var(--white);
    border-left: 4px solid var(--accent-green);
}

.notification-error {
    background: linear-gradient(135deg, rgba(239, 68, 68, 0.95), rgba(220, 38, 38, 0.95));
    color: var(--white);
    border-left: 4px solid #dc2626;
}

.notification-content {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.notification-icon {
    font-size: 2rem;
    font-weight: bold;
    flex-shrink: 0;
    animation: iconBounce 0.6s ease;
}

.notification-message {
    font-size: 1rem;
    line-height: 1.5;
    font-weight: 500;
}

@keyframes iconBounce {
    0%, 100% {
        transform: scale(1);
    }
    50% {
        transform: scale(1.2);
    }
}

/* Notification responsive */
@media (max-width: 768px) {
    .notification {
        left: 20px;
        right: 20px;
        min-width: auto;
        transform: translateY(-100px) scale(0.9);
    }

    .notification-show {
        transform: translateY(0) scale(1);
    }

    .notification-hide {
        transform: translateY(-100px) scale(0.9);
    }

    .notification-content {
        gap: 0.75rem;
    }

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

    .notification-message {
        font-size: 0.9rem;
    }
}

/* ===================================
   Responsive Design
   =================================== */

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

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

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

    .solution-features .feature-card.featured {
        grid-column: 1 / -1;
    }
}

@media (max-width: 768px) {
    :root {
        --spacing-lg: 3rem;
        --spacing-xl: 4rem;
    }

    .hero {
        min-height: auto;
        padding: var(--spacing-xl) 0;
    }

    .water-drop {
        width: 150px;
        height: 210px;
    }

    .problem-grid,
    .cert-grid,
    .works-grid {
        grid-template-columns: 1fr;
    }

    .maintenance-stats {
        gap: var(--spacing-md);
    }

    .big-number {
        font-size: 3rem;
    }

    .cta-benefits {
        flex-direction: column;
        align-items: center;
    }

    .gold-seal {
        flex-direction: column;
        text-align: center;
    }

    .scroll-indicator {
        display: none;
    }

    /* Modal Responsive */
    .modal-content {
        margin: 0;
        border-radius: 0;
        min-height: 100vh;
    }

    .modal-grid {
        grid-template-columns: 1fr;
        min-height: 100vh;
    }

    .business-card {
        border-radius: 0;
        padding: var(--spacing-lg) var(--spacing-md);
    }

    .contact-form-container {
        padding: var(--spacing-lg) var(--spacing-md);
        max-height: none;
    }

    .form-row {
        grid-template-columns: 1fr;
    }

    .business-card-photo img {
        width: 120px;
        height: 120px;
    }
}

/* ===================================
   Scroll Animations (optional enhancement)
   =================================== */

.fade-in {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

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

/* ===================================
   Accessibility
   =================================== */

.skip-link {
    position: absolute;
    top: -40px;
    left: 0;
    background: var(--primary-blue);
    color: var(--white);
    padding: 8px;
    text-decoration: none;
    z-index: 100;
}

.skip-link:focus {
    top: 0;
}

/* Focus states */
*:focus-visible {
    outline: 2px solid var(--secondary-cyan);
    outline-offset: 2px;
}

/* Reduced motion */
@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}

/* Print styles */
@media print {
    .hero,
    .final-cta,
    .cta-button {
        background: none;
        color: black;
    }

    .footer {
        border-top: 1px solid black;
    }
}