/* PG EOR - Professional EOR Platform Styles */

/* Reset & Base Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --primary: #0B3C5D;
    --secondary: #1FAF8E;
    --accent: #F5B700;
    --dark-text: #0F172A;
    --body-text: #334155;
    --muted-text: #64748B;
    --bg-light: #F8FAFC;
    --bg-white: #FFFFFF;
    --border-color: #E2E8F0;
    
    /* Spacing */
    --section-padding: 120px;
    --container-padding: 32px;
    
    /* Typography */
    --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
}

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

body {
    font-family: var(--font-family);
    font-size: 16px;
    line-height: 1.7;
    color: var(--body-text);
    background: var(--bg-white);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    overflow-x: hidden;
}

/* Typography Scale */
h1, .h1 {
    font-size: clamp(36px, 8vw, 88px);
    font-weight: 800;
    line-height: 1.1;
    color: var(--dark-text);
    letter-spacing: -0.02em;
}

h2, .h2 {
    font-size: clamp(32px, 6vw, 60px);
    font-weight: 700;
    line-height: 1.2;
    color: var(--dark-text);
    letter-spacing: -0.01em;
}

h3, .h3 {
    font-size: clamp(24px, 4vw, 36px);
    font-weight: 600;
    line-height: 1.3;
    color: var(--dark-text);
}

h4, .h4 {
    font-size: clamp(20px, 3vw, 28px);
    font-weight: 600;
    line-height: 1.4;
    color: var(--dark-text);
}

p {
    font-size: 18px;
    line-height: 1.7;
    color: var(--body-text);
}

/* Links */
a {
    text-decoration: none;
    color: inherit;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 16px 32px;
    font-weight: 600;
    font-size: 16px;
    border-radius: 12px;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    cursor: pointer;
    border: none;
    outline: none;
    text-decoration: none;
    white-space: nowrap;
}

.btn-primary {
    background: var(--secondary);
    color: white;
    box-shadow: 0 4px 16px rgba(31, 175, 142, 0.2);
}

.btn-primary:hover {
    background: #19967a;
    box-shadow: 0 8px 32px rgba(31, 175, 142, 0.3);
    transform: translateY(-2px);
}

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

.btn-secondary:hover {
    background: var(--primary);
    color: white;
    transform: translateY(-2px);
}

/* Animations */
@keyframes float {
    0%, 100% {
        transform: translateY(0px) scale(1);
    }
    50% {
        transform: translateY(-20px) scale(1.05);
    }
}

@keyframes slideInLeft {
    from {
        opacity: 0;
        transform: translateX(-50px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes slideInRight {
    from {
        opacity: 0;
        transform: translateX(50px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

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

@keyframes scaleIn {
    from {
        opacity: 0;
        transform: scale(0.9);
    }
    to {
        opacity: 1;
        transform: scale(1);
    }
}

@keyframes pulse {
    0%, 100% {
        opacity: 1;
        transform: scale(1);
    }
    50% {
        opacity: 0.8;
        transform: scale(1.05);
    }
}

@keyframes shimmer {
    0% {
        background-position: -1000px 0;
    }
    100% {
        background-position: 1000px 0;
    }
}

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

/* Cards */
.card {
    background: white;
    border-radius: 24px;
    padding: 32px;
    box-shadow: 0 4px 24px rgba(0, 0, 0, 0.06);
    border: 1px solid var(--border-color);
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

.card:hover {
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.12);
    transform: translateY(-8px);
    border-color: var(--secondary);
}

/* Glassmorphism */
.glass {
    background: rgba(255, 255, 255, 0.8);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border: 1px solid rgba(255, 255, 255, 0.2);
}

/* Scrollbar Styling */
::-webkit-scrollbar {
    width: 12px;
    height: 12px;
}

::-webkit-scrollbar-track {
    background: var(--bg-light);
}

::-webkit-scrollbar-thumb {
    background: var(--muted-text);
    border-radius: 6px;
    border: 2px solid var(--bg-light);
}

::-webkit-scrollbar-thumb:hover {
    background: var(--secondary);
}

/* Selection */
::selection {
    background: var(--secondary);
    color: white;
}

::-moz-selection {
    background: var(--secondary);
    color: white;
}

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

/* Loading States */
.loading {
    position: relative;
    pointer-events: none;
    opacity: 0.6;
}

.loading::after {
    content: "";
    position: absolute;
    top: 50%;
    left: 50%;
    width: 24px;
    height: 24px;
    margin: -12px 0 0 -12px;
    border: 3px solid var(--border-color);
    border-top-color: var(--secondary);
    border-radius: 50%;
    animation: spin 0.6s linear infinite;
}

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

/* Badge */
.badge {
    display: inline-flex;
    align-items: center;
    padding: 6px 16px;
    border-radius: 999px;
    font-size: 14px;
    font-weight: 600;
    background: var(--secondary);
    color: white;
}

.badge-primary {
    background: rgba(11, 60, 93, 0.1);
    color: var(--primary);
}

.badge-secondary {
    background: rgba(31, 175, 142, 0.1);
    color: var(--secondary);
}

.badge-accent {
    background: rgba(245, 183, 0, 0.1);
    color: var(--accent);
}

/* Tooltip */
.tooltip {
    position: relative;
}

.tooltip::before {
    content: attr(data-tooltip);
    position: absolute;
    bottom: 100%;
    left: 50%;
    transform: translateX(-50%) translateY(-8px);
    padding: 8px 12px;
    background: var(--dark-text);
    color: white;
    font-size: 14px;
    border-radius: 8px;
    white-space: nowrap;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.3s, transform 0.3s;
}

.tooltip:hover::before {
    opacity: 1;
    transform: translateX(-50%) translateY(-4px);
}

/* Stats Counter Animation */
.stat-counter {
    font-size: 48px;
    font-weight: 800;
    color: var(--dark-text);
    line-height: 1;
}

/* Section Divider */
.section-divider {
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--border-color), transparent);
    margin: 80px 0;
}

/* Background Patterns */
.bg-pattern {
    background-image: 
        radial-gradient(circle at 20% 50%, rgba(31, 175, 142, 0.05) 0%, transparent 50%),
        radial-gradient(circle at 80% 80%, rgba(11, 60, 93, 0.05) 0%, transparent 50%);
}

/* Grid Background */
.bg-grid {
    background-image: 
        linear-gradient(var(--border-color) 1px, transparent 1px),
        linear-gradient(90deg, var(--border-color) 1px, transparent 1px);
    background-size: 50px 50px;
    opacity: 0.3;
}

/* Responsive Typography */
@media (max-width: 768px) {
    html {
        font-size: 14px;
    }
    
    p {
        font-size: 16px;
    }
    
    .btn {
        padding: 12px 24px;
        font-size: 15px;
    }
    
    .card {
        padding: 24px;
        border-radius: 16px;
    }
}

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

/* Print Styles */
@media print {
    .no-print {
        display: none !important;
    }
    
    * {
        background: white !important;
        color: black !important;
        box-shadow: none !important;
    }
}

/* Navbar Scroll Effect */
nav.scrolled {
    box-shadow: 0 4px 24px rgba(0, 0, 0, 0.08);
    backdrop-filter: blur(20px);
}

/* Hero Section Enhancements */
.hero-gradient {
    background: linear-gradient(135deg, 
        rgba(248, 250, 252, 1) 0%, 
        rgba(248, 250, 252, 0.8) 50%,
        rgba(255, 255, 255, 1) 100%);
}

/* Product Card Hover Effects */
.product-card {
    position: relative;
    overflow: hidden;
}

.product-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(31, 175, 142, 0.1), transparent);
    transition: left 0.5s;
}

.product-card:hover::before {
    left: 100%;
}

/* Testimonial Styles */
.testimonial {
    position: relative;
    padding: 40px;
    background: white;
    border-radius: 24px;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.08);
}

.testimonial::before {
    content: '"';
    position: absolute;
    top: 20px;
    left: 20px;
    font-size: 120px;
    font-weight: 700;
    color: var(--secondary);
    opacity: 0.1;
    line-height: 1;
}

/* Icon Styles */
.icon-wrapper {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 64px;
    height: 64px;
    border-radius: 16px;
    background: linear-gradient(135deg, rgba(31, 175, 142, 0.1), rgba(31, 175, 142, 0.05));
    transition: all 0.3s;
}

.icon-wrapper:hover {
    transform: scale(1.1) rotate(5deg);
}

/* Feature List */
.feature-list {
    list-style: none;
    padding: 0;
}

.feature-list li {
    position: relative;
    padding-left: 32px;
    margin-bottom: 16px;
}

.feature-list li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: var(--secondary);
    font-weight: 700;
    font-size: 20px;
}

/* Pricing Table */
.pricing-card {
    position: relative;
    background: white;
    border-radius: 24px;
    padding: 48px;
    border: 2px solid var(--border-color);
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

.pricing-card.featured {
    border-color: var(--secondary);
    box-shadow: 0 20px 60px rgba(31, 175, 142, 0.2);
    transform: scale(1.05);
}

.pricing-card:hover {
    border-color: var(--secondary);
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.1);
    transform: translateY(-8px);
}

/* Footer Styles */
footer {
    background: var(--dark-text);
    color: white;
}

footer a {
    color: rgba(255, 255, 255, 0.7);
    transition: color 0.3s;
}

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

/* Mobile Menu Animation */
#mobile-menu {
    animation: slideDown 0.3s ease-out;
}

@keyframes slideDown {
    from {
        opacity: 0;
        transform: translateY(-20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Utilities */
.container {
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 var(--container-padding);
}

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

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

.shadow-xl {
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.12);
}

.shadow-2xl {
    box-shadow: 0 25px 80px rgba(0, 0, 0, 0.15);
}

/* CTA Section */
.cta-section {
    background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
    position: relative;
    overflow: hidden;
}

.cta-section::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle, rgba(255, 255, 255, 0.1) 1px, transparent 1px);
    background-size: 50px 50px;
    animation: rotateBackground 60s linear infinite;
}

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

/* Form Styles */
input, textarea, select {
    width: 100%;
    padding: 16px;
    border: 2px solid var(--border-color);
    border-radius: 12px;
    font-family: var(--font-family);
    font-size: 16px;
    transition: all 0.3s;
    background: white;
}

input:focus, textarea:focus, select:focus {
    outline: none;
    border-color: var(--secondary);
    box-shadow: 0 0 0 4px rgba(31, 175, 142, 0.1);
}

/* Page Transition */
.page-transition {
    animation: fadeIn 0.5s ease-out;
}

@keyframes fadeIn {
    from {
        opacity: 0;
    }
    to {
        opacity: 1;
    }
}

/* Smooth Reveal on Scroll */
[data-aos] {
    opacity: 0;
    transition-property: transform, opacity;
}

[data-aos].aos-animate {
    opacity: 1;
}

/* Video Background */
.video-bg {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    opacity: 0.5;
}

/* Custom Checkbox */
.custom-checkbox {
    position: relative;
    display: inline-block;
    width: 24px;
    height: 24px;
    margin-right: 12px;
}

.custom-checkbox input {
    opacity: 0;
    width: 0;
    height: 0;
}

.checkmark {
    position: absolute;
    top: 0;
    left: 0;
    height: 24px;
    width: 24px;
    background: white;
    border: 2px solid var(--border-color);
    border-radius: 6px;
    transition: all 0.3s;
}

.custom-checkbox:hover input ~ .checkmark {
    border-color: var(--secondary);
}

.custom-checkbox input:checked ~ .checkmark {
    background: var(--secondary);
    border-color: var(--secondary);
}

.checkmark:after {
    content: "";
    position: absolute;
    display: none;
    left: 7px;
    top: 3px;
    width: 6px;
    height: 10px;
    border: solid white;
    border-width: 0 2px 2px 0;
    transform: rotate(45deg);
}

.custom-checkbox input:checked ~ .checkmark:after {
    display: block;
}

/* Image Lazy Loading */
img[loading="lazy"] {
    opacity: 0;
    transition: opacity 0.3s;
}

img[loading="lazy"].loaded {
    opacity: 1;
}

/* Dark Mode Support (Optional) */
@media (prefers-color-scheme: dark) {
    :root {
        --dark-text: #F8FAFC;
        --body-text: #CBD5E1;
        --muted-text: #94A3B8;
        --bg-light: #1E293B;
        --bg-white: #0F172A;
        --border-color: #334155;
    }
    
    body {
        background: var(--bg-white);
        color: var(--body-text);
    }
}