/* ================================
   CSS Variables & Reset
   ================================ */
:root {
    /* Colors */
    --primary-color: #1a56db;
    --primary-dark: #1e429f;
    --primary-light: #3b82f6;
    --secondary-color: #0ea5e9;
    --accent-color: #06b6d4;
    
    --text-dark: #1e293b;
    --text-medium: #475569;
    --text-light: #64748b;
    
    --bg-white: #ffffff;
    --bg-light: #f8fafc;
    --bg-gradient: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    
    --success: #10b981;
    --error: #ef4444;
    --warning: #f59e0b;
    
    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 2rem;
    --spacing-lg: 4rem;
    --spacing-xl: 6rem;
    
    /* Typography */
    --font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    --font-size-base: 1rem;
    --line-height-base: 1.6;
    
    /* Shadows */
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1);
    
    /* Transitions */
    --transition-fast: 0.2s ease;
    --transition-base: 0.3s ease;
    --transition-slow: 0.5s ease;
    
    /* Border Radius */
    --radius-sm: 0.375rem;
    --radius-md: 0.5rem;
    --radius-lg: 0.75rem;
    --radius-xl: 1rem;
}

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

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

body {
    font-family: var(--font-family);
    font-size: var(--font-size-base);
    line-height: var(--line-height-base);
    color: var(--text-dark);
    background-color: var(--bg-white);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

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

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

ul {
    list-style: none;
}

/* ================================
   Container & Layout
   ================================ */
.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

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

.navbar .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: var(--spacing-sm);
    padding-bottom: var(--spacing-sm);
}

.nav-brand {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary-color);
}

.nav-brand i {
    font-size: 1.8rem;
}

.nav-toggle {
    display: none;
    background: none;
    border: none;
    font-size: 1.5rem;
    color: var(--text-dark);
    cursor: pointer;
}

.nav-menu {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
}

.nav-link {
    font-weight: 500;
    color: var(--text-medium);
    padding: 0.5rem 0;
    position: relative;
}

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

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

.nav-link:hover::after {
    width: 100%;
}

/* Special styling for Get in Touch button in nav */
.nav-cta-button {
    background: var(--primary-color);
    color: white !important;
    padding: 0.65rem 1.5rem;
    border-radius: var(--radius-md);
    font-weight: 600;
    box-shadow: var(--shadow-md);
    transition: all var(--transition-base);
}

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

.nav-cta-button:hover {
    background: var(--primary-dark);
    color: white !important;
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

/* ================================
   Buttons
   ================================ */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 0.75rem 1.5rem;
    font-weight: 600;
    font-size: 1rem;
    border: none;
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: var(--transition-base);
    text-align: center;
}

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

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

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

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

.btn-large {
    padding: 1rem 2rem;
    font-size: 1.1rem;
}

.btn-full {
    width: 100%;
}

.btn-loading {
    display: none;
}

.btn.loading .btn-text {
    display: none;
}

.btn.loading .btn-loading {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

/* ================================
   Hero Section
   ================================ */
.hero {
    position: relative;
    padding-top: calc(80px + var(--spacing-xl));
    padding-bottom: var(--spacing-xl);
    background: linear-gradient(135deg, #f0f9ff 0%, #e0f2fe 100%);
    overflow: hidden;
}

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

.hero-text {
    animation: fadeInUp 0.8s ease;
}

.hero-title {
    font-size: 3.5rem;
    font-weight: 800;
    line-height: 1.2;
    margin-bottom: var(--spacing-md);
    color: var(--text-dark);
}

.gradient-text {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-subtitle {
    font-size: 1.25rem;
    color: var(--text-medium);
    margin-bottom: var(--spacing-lg);
    line-height: 1.7;
}

.hero-stats {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-lg);
}

.stat {
    text-align: center;
    padding: var(--spacing-md);
    background: white;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
}

.stat-number {
    font-size: 2rem;
    font-weight: 800;
    color: var(--primary-color);
    margin-bottom: 0.5rem;
}

.stat-label {
    font-size: 0.9rem;
    color: var(--text-medium);
    font-weight: 500;
}

.hero-cta {
    display: flex;
    gap: var(--spacing-md);
}

.hero-image {
    position: relative;
    animation: fadeInRight 0.8s ease;
}

.hero-img {
    width: 100%;
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-xl);
    transition: var(--transition-slow);
}

.hero-img:hover {
    transform: scale(1.02);
}

.hero-badge {
    position: absolute;
    bottom: var(--spacing-md);
    right: var(--spacing-md);
    background: var(--success);
    color: white;
    padding: 0.75rem 1.5rem;
    border-radius: var(--radius-lg);
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    box-shadow: var(--shadow-lg);
}

.hero-wave {
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    overflow: hidden;
    line-height: 0;
}

.hero-wave svg {
    position: relative;
    display: block;
    width: calc(100% + 1.3px);
    height: 80px;
    fill: var(--bg-white);
}

/* ================================
   Section Styles
   ================================ */
.section-header {
    text-align: center;
    max-width: 800px;
    margin: 0 auto var(--spacing-lg);
}

.section-title {
    font-size: 2.5rem;
    font-weight: 800;
    color: var(--text-dark);
    margin-bottom: var(--spacing-md);
}

.section-subtitle {
    font-size: 1.2rem;
    color: var(--text-medium);
    line-height: 1.7;
}

/* ================================
   Problem Section
   ================================ */
.problem-section {
    padding: var(--spacing-xl) 0;
    background: var(--bg-white);
}

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

.problem-card {
    background: var(--bg-light);
    padding: var(--spacing-lg);
    border-radius: var(--radius-lg);
    transition: var(--transition-base);
    border: 2px solid transparent;
}

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

.problem-card.highlight {
    background: linear-gradient(135deg, #fee2e2 0%, #fecaca 100%);
}

.icon-box {
    width: 60px;
    height: 60px;
    background: var(--primary-color);
    color: white;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius-lg);
    font-size: 1.5rem;
    margin-bottom: var(--spacing-md);
}

.problem-card.highlight .icon-box {
    background: var(--error);
}

.problem-card h3 {
    font-size: 1.3rem;
    font-weight: 700;
    color: var(--text-dark);
    margin-bottom: var(--spacing-sm);
}

.problem-card p {
    color: var(--text-medium);
    line-height: 1.7;
}

/* ================================
   Solution Section
   ================================ */
.solution-section {
    padding: var(--spacing-xl) 0;
    background: var(--bg-light);
}

.solution-steps {
    margin-top: var(--spacing-lg);
}

.solution-step {
    position: relative;
    margin-bottom: var(--spacing-xl);
    opacity: 0;
    transform: translateY(30px);
    transition: all 0.6s ease;
}

.solution-step.visible {
    opacity: 1;
    transform: translateY(0);
}

.step-number {
    position: absolute;
    top: 0;
    left: 0;
    width: 80px;
    height: 80px;
    background: var(--primary-color);
    color: white;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
    font-weight: 800;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
    z-index: 10;
}

.step-content {
    background: white;
    padding: var(--spacing-lg);
    padding-left: 120px;
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-md);
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-lg);
    align-items: center;
}

.solution-step.reverse .step-content {
    padding-left: var(--spacing-lg);
    padding-right: 120px;
}

.solution-step.reverse .step-number {
    left: auto;
    right: 0;
}

.step-image img {
    width: 100%;
    max-width: 350px;
    margin: 0 auto;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
}

.step-text h3 {
    font-size: 1.8rem;
    font-weight: 700;
    color: var(--text-dark);
    margin-bottom: var(--spacing-md);
}

.step-text p {
    color: var(--text-medium);
    line-height: 1.8;
    margin-bottom: var(--spacing-md);
}

.feature-list {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.feature-list li {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    color: var(--text-medium);
    font-weight: 500;
}

.feature-list i {
    color: var(--success);
    font-size: 1.2rem;
}

/* Benefits Grid */
.benefits-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-md);
    margin-top: var(--spacing-xl);
}

.benefit-card {
    background: white;
    padding: var(--spacing-lg);
    border-radius: var(--radius-lg);
    text-align: center;
    transition: var(--transition-base);
    border: 2px solid var(--bg-light);
}

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

.benefit-icon {
    width: 70px;
    height: 70px;
    background: linear-gradient(135deg, var(--primary-light) 0%, var(--secondary-color) 100%);
    color: white;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    font-size: 1.8rem;
    margin: 0 auto var(--spacing-md);
}

.benefit-card h4 {
    font-size: 1.2rem;
    font-weight: 700;
    color: var(--text-dark);
    margin-bottom: var(--spacing-sm);
}

.benefit-card p {
    color: var(--text-medium);
    line-height: 1.6;
}

/* ================================
   Contact Section
   ================================ */
.contact-section {
    padding: var(--spacing-xl) 0;
    background: var(--bg-white);
}

.contact-content {
    display: grid;
    grid-template-columns: 1.5fr 1fr;
    gap: var(--spacing-lg);
    margin-top: var(--spacing-lg);
}

.contact-form-wrapper {
    background: var(--bg-light);
    padding: var(--spacing-lg);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-md);
}

.contact-form {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.form-group label {
    font-weight: 600;
    color: var(--text-dark);
    font-size: 0.95rem;
}

.form-group input,
.form-group textarea {
    padding: 0.875rem 1rem;
    border: 2px solid #e2e8f0;
    border-radius: var(--radius-md);
    font-family: var(--font-family);
    font-size: 1rem;
    transition: var(--transition-base);
    background: white;
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(26, 86, 219, 0.1);
}

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

.error-message {
    color: var(--error);
    font-size: 0.875rem;
    display: none;
}

.form-group.error input,
.form-group.error textarea {
    border-color: var(--error);
}

.form-group.error .error-message {
    display: block;
}

.form-message {
    padding: var(--spacing-md);
    border-radius: var(--radius-md);
    display: none;
    align-items: center;
    gap: 0.75rem;
    font-weight: 500;
}

.form-message.show {
    display: flex;
}

.form-message.success {
    background: #d1fae5;
    color: #065f46;
}

.form-message.error {
    background: #fee2e2;
    color: #991b1b;
}

.form-privacy {
    text-align: center;
    color: var(--text-light);
    font-size: 0.875rem;
    margin-top: var(--spacing-sm);
}

.form-privacy i {
    color: var(--success);
}

/* Contact Info Cards */
.contact-info {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.info-card {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-dark) 100%);
    color: white;
    padding: var(--spacing-lg);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
}

.info-icon {
    width: 50px;
    height: 50px;
    background: rgba(255, 255, 255, 0.2);
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius-md);
    font-size: 1.5rem;
    margin-bottom: var(--spacing-md);
}

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

.info-card p {
    line-height: 1.7;
    opacity: 0.95;
}

.info-list {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
    margin-top: var(--spacing-md);
}

.info-list li {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    opacity: 0.95;
}

.info-list i {
    color: var(--accent-color);
}

/* ================================
   Footer
   ================================ */
.footer {
    background: var(--text-dark);
    color: white;
    padding: var(--spacing-xl) 0 var(--spacing-md);
}

.footer-content {
    display: grid;
    grid-template-columns: 1.5fr 1fr;
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-lg);
    padding-bottom: var(--spacing-lg);
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-brand {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.brand-logo {
    display: flex;
    align-items: center;
    font-size: 1.8rem;
    font-weight: 700;
}

.brand-tagline {
    color: rgba(255, 255, 255, 0.8);
    line-height: 1.7;
    max-width: 400px;
}

.footer-team h3 {
    font-size: 1.3rem;
    font-weight: 700;
    margin-bottom: var(--spacing-md);
}

.team-members {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.team-member {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
}

.team-member i {
    width: 50px;
    height: 50px;
    background: var(--primary-color);
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    font-size: 1.5rem;
}

.member-info {
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
}

.member-info strong {
    font-size: 1.1rem;
}

.member-info span {
    color: rgba(255, 255, 255, 0.7);
    font-size: 0.9rem;
}

.footer-bottom {
    text-align: center;
    color: rgba(255, 255, 255, 0.7);
}

.footer-bottom p {
    margin: 0.5rem 0;
}

.footer-note {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    font-size: 0.9rem;
}

.footer-note i {
    color: var(--warning);
}

/* ================================
   Back to Top Button
   ================================ */
.back-to-top {
    position: fixed;
    bottom: var(--spacing-md);
    right: var(--spacing-md);
    width: 50px;
    height: 50px;
    background: var(--primary-color);
    color: white;
    border: none;
    border-radius: 50%;
    font-size: 1.2rem;
    cursor: pointer;
    box-shadow: var(--shadow-lg);
    opacity: 0;
    visibility: hidden;
    transition: var(--transition-base);
    z-index: 999;
}

.back-to-top.show {
    opacity: 1;
    visibility: visible;
}

.back-to-top:hover {
    background: var(--primary-dark);
    transform: translateY(-3px);
}

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

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

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

/* Tablets and Below */
@media (max-width: 1024px) {
    .hero-content {
        grid-template-columns: 1fr;
    }
    
    .hero-title {
        font-size: 2.8rem;
    }
    
    .hero-stats {
        grid-template-columns: repeat(3, 1fr);
    }
    
    .step-content {
        grid-template-columns: 1fr;
        padding-left: 120px;
    }
    
    .solution-step.reverse .step-content {
        padding-right: var(--spacing-lg);
    }
    
    .contact-content {
        grid-template-columns: 1fr;
    }
    
    .footer-content {
        grid-template-columns: 1fr;
    }
}

/* Mobile Devices */
@media (max-width: 768px) {
    :root {
        --spacing-lg: 3rem;
        --spacing-xl: 4rem;
    }
    
    .nav-toggle {
        display: block;
    }
    
    .nav-menu {
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background: white;
        flex-direction: column;
        align-items: stretch;
        padding: var(--spacing-md);
        box-shadow: var(--shadow-lg);
        max-height: 0;
        overflow: hidden;
        transition: var(--transition-base);
    }
    
    .nav-menu.active {
        max-height: 400px;
    }
    
    .nav-link {
        padding: var(--spacing-sm);
        text-align: center;
    }
    
    .hero {
        padding-top: calc(80px + var(--spacing-lg));
        padding-bottom: var(--spacing-lg);
    }
    
    .hero-title {
        font-size: 2.2rem;
    }
    
    .hero-subtitle {
        font-size: 1.1rem;
    }
    
    .hero-stats {
        grid-template-columns: 1fr;
    }
    
    .hero-cta {
        flex-direction: column;
    }
    
    .section-title {
        font-size: 2rem;
    }
    
    .section-subtitle {
        font-size: 1.1rem;
    }
    
    .problem-grid {
        grid-template-columns: 1fr;
    }
    
    .step-content {
        padding-left: var(--spacing-md);
        padding-top: 100px;
    }
    
    .step-number {
        left: 50%;
        transform: translateX(-50%);
    }
    
    .solution-step.reverse .step-number {
        right: auto;
        left: 50%;
    }
    
    .benefits-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 480px) {
    .hero-title {
        font-size: 1.8rem;
    }
    
    .stat-number {
        font-size: 1.5rem;
    }
    
    .step-text h3 {
        font-size: 1.4rem;
    }
    
    .container {
        padding: 0 var(--spacing-sm);
    }
}