/* NxPromt Website Styles */
/* Version: 2026.2 - Complete Production Ready CSS with Enhanced Interactions */

:root {
    --primary: #667eea;
    --primary-dark: #5568d3;
    --secondary: #764ba2;
    --dark: #1e3c72;
    --text: #2d3748;
    --text-light: #718096;
    --bg: #f7fafc;
    --white: #fff;
    --shadow: 0 4px 6px -1px rgba(0,0,0,.1);
    --shadow-lg: 0 10px 15px -3px rgba(0,0,0,.1);
    --shadow-xl: 0 20px 25px -5px rgba(0,0,0,.1);
    --radius: 16px;
    --transition: all .3s cubic-bezier(.4,0,.2,1);
    --transition-slow: all .6s cubic-bezier(.4,0,.2,1);
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    line-height: 1.6;
    color: var(--text);
    background: var(--bg);
}

body.modal-open {
    overflow: hidden;
}

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

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

.container {
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 2rem;
}

/* Navigation */
.main-navigation {
    background: rgba(255,255,255,.95);
    backdrop-filter: blur(20px);
    position: fixed;
    width: 100%;
    top: 0;
    z-index: 1000;
    transition: var(--transition);
    border-bottom: 1px solid rgba(0,0,0,.05);
}

.main-navigation.scrolled {
    box-shadow: var(--shadow-lg);
    background: rgba(255,255,255,.98);
}

.nav-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 72px;
}

.site-logo {
    font-size: 1.75rem;
    font-weight: 800;
    color: var(--dark);
    position: relative;
    overflow: hidden;
}

.site-logo::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 2px;
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    transform: translateX(-100%);
    transition: transform 0.3s ease;
}

.site-logo:hover::after {
    transform: translateX(0);
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 2rem;
    align-items: center;
}

.nav-menu a {
    color: var(--text);
    font-weight: 500;
    position: relative;
    padding-bottom: 4px;
}

.nav-menu a::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 2px;
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    transform: scaleX(0);
    transition: transform 0.3s ease;
}

.nav-menu a:hover::after,
.nav-menu a.active::after {
    transform: scaleX(1);
}

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

/* Buttons */
.btn {
    padding: 1rem 2rem;
    font-size: 1rem;
    font-weight: 600;
    border-radius: 50px;
    transition: var(--transition);
    cursor: pointer;
    border: none;
    display: inline-flex;
    align-items: center;
    gap: .5rem;
    box-shadow: var(--shadow);
    position: relative;
    overflow: hidden;
}

.btn::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    border-radius: 50%;
    background: rgba(255,255,255,.3);
    transform: translate(-50%, -50%);
    transition: width 0.6s, height 0.6s;
}

.btn:active::before {
    width: 300px;
    height: 300px;
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    color: var(--white);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 15px 35px rgba(102,126,234,.4);
}

.btn-secondary {
    background: transparent;
    color: var(--white);
    border: 2px solid rgba(255,255,255,.4);
}

.btn-secondary:hover {
    background: rgba(255,255,255,.1);
    border-color: var(--white);
}

.btn-sm {
    padding: .5rem 1rem;
    font-size: .875rem;
}

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

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

/* Hero Section */
.hero-section {
    background: linear-gradient(135deg, var(--dark), #2a5298);
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    padding: 10rem 2rem 6rem;
    position: relative;
    overflow: hidden;
}

.hero-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: radial-gradient(circle at 20% 50%, rgba(102,126,234,.15) 0%, transparent 50%);
    pointer-events: none;
}

.hero-content {
    max-width: 900px;
    position: relative;
    z-index: 1;
}

.hero-content > * {
    animation: fadeInUp 0.8s ease forwards;
    opacity: 0;
}

.hero-content .hero-subtitle {
    animation-delay: 0.2s;
}

.hero-content .hero-title {
    animation-delay: 0.4s;
}

.hero-content .hero-description {
    animation-delay: 0.6s;
}

.hero-content .hero-buttons {
    animation-delay: 0.8s;
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(24px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.hero-subtitle {
    color: rgba(255,255,255,.8);
    font-size: .875rem;
    margin-bottom: 1rem;
    letter-spacing: 3px;
    text-transform: uppercase;
}

.hero-title {
    color: var(--white);
    font-size: clamp(2rem, 5vw, 4rem);
    margin-bottom: 1.5rem;
    font-weight: 800;
    line-height: 1.1;
}

.solution-box {
    display: inline-block;
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    padding: .75rem 2.5rem;
    margin: 1rem 0;
    font-size: clamp(1.5rem, 4vw, 3rem);
    font-weight: 800;
    color: var(--white);
    border-radius: 12px;
    box-shadow: 0 20px 40px rgba(102,126,234,.35);
    position: relative;
    overflow: hidden;
}

.solution-box::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,.2), transparent);
    transition: left 0.5s ease;
}

.solution-box:hover::before {
    left: 100%;
}

.hero-description {
    color: rgba(255,255,255,.9);
    font-size: 1.125rem;
    margin-bottom: 2.5rem;
    line-height: 1.7;
    max-width: 700px;
    margin-inline: auto;
}

.hero-buttons {
    display: flex;
    gap: 1rem;
    justify-content: center;
    flex-wrap: wrap;
}

.wave-decoration {
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    overflow: hidden;
    line-height: 0;
    transition: transform 0.2s ease-out;
    pointer-events: none;
}

/* Features Section */
.features-section {
    padding: 6rem 2rem;
    background: var(--bg);
}

.section-header {
    text-align: center;
    max-width: 700px;
    margin: 0 auto 4rem;
}

.section-title {
    font-size: clamp(1.75rem, 4vw, 2.5rem);
    font-weight: 800;
    color: var(--text);
    margin-bottom: .75rem;
    position: relative;
    display: inline-block;
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 50%;
    transform: translateX(-50%);
    width: 60px;
    height: 4px;
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    border-radius: 2px;
}

.section-subtitle {
    font-size: 1.1rem;
    color: var(--text-light);
}

.features-grid {
    max-width: 1280px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 2rem;
}

.feature-item {
    background: var(--white);
    padding: 2.5rem 2rem;
    border-radius: var(--radius);
    text-align: center;
    box-shadow: var(--shadow);
    transition: var(--transition);
    opacity: 0;
    transform: translateY(30px);
}

.feature-item.visible {
    opacity: 1;
    transform: translateY(0);
}

.feature-item:hover {
    transform: translateY(-8px) scale(1.02);
    box-shadow: var(--shadow-xl);
}

.feature-icon {
    width: 72px;
    height: 72px;
    margin: 0 auto 1.5rem;
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    border-radius: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
    color: var(--white);
    transition: var(--transition);
}

.feature-item:hover .feature-icon {
    transform: rotate(5deg) scale(1.1);
    border-radius: 20px;
}

.feature-title {
    font-size: 1.4rem;
    margin-bottom: .75rem;
    color: var(--text);
    font-weight: 700;
}

.feature-description {
    color: var(--text-light);
    line-height: 1.6;
}

/* About Section */
.about-section {
    padding: 6rem 2rem;
    background: var(--white);
}

.about-container {
    max-width: 1280px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
}

.about-image {
    border-radius: var(--radius);
    overflow: hidden;
    box-shadow: var(--shadow-lg);
    aspect-ratio: 4/3;
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--white);
    font-size: 4rem;
    position: relative;
    transition: var(--transition);
}

.about-image:hover {
    transform: scale(1.02);
    box-shadow: var(--shadow-xl);
}

.about-image::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, rgba(102,126,234,.3), rgba(118,75,162,.3));
    opacity: 0;
    transition: opacity 0.3s ease;
}

.about-image:hover::before {
    opacity: 1;
}

.about-content h2 {
    font-size: clamp(1.75rem, 4vw, 2.5rem);
    color: var(--text);
    margin-bottom: 1.5rem;
    font-weight: 800;
}

.about-content p {
    color: var(--text-light);
    font-size: 1.05rem;
    line-height: 1.7;
    margin-bottom: 1.5rem;
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1.5rem;
    margin-top: 2rem;
}

.stat-item {
    padding: 1.25rem;
    background: var(--bg);
    border-radius: 12px;
    text-align: center;
    transition: var(--transition);
}

.stat-item:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow);
}

.stat-number {
    font-size: 2rem;
    font-weight: 800;
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.stat-label {
    color: var(--text-light);
    font-size: .875rem;
    margin-top: .25rem;
}

/* CTA Section */
.cta-section {
    padding: 5rem 2rem;
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    text-align: center;
    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,.1) 0%, transparent 50%);
    animation: rotate 20s linear infinite;
}

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

.cta-content {
    max-width: 700px;
    margin: 0 auto;
    position: relative;
    z-index: 1;
}

.cta-title {
    font-size: clamp(1.75rem, 4vw, 2.5rem);
    color: var(--white);
    margin-bottom: 1rem;
    font-weight: 800;
}

.cta-text {
    font-size: 1.1rem;
    color: rgba(255,255,255,.9);
    margin-bottom: 2rem;
}

/* Footer */
.site-footer {
    background: #1a202c;
    color: var(--white);
    padding: 3rem 2rem 2rem;
    text-align: center;
}

.footer-logo {
    font-size: 1.75rem;
    font-weight: 800;
    margin-bottom: 1.5rem;
    color: var(--white);
}

.footer-links {
    display: flex;
    justify-content: center;
    gap: 2rem;
    margin-bottom: 2rem;
    flex-wrap: wrap;
}

.footer-links a {
    color: #a0aec0;
    position: relative;
    padding-bottom: 4px;
}

.footer-links a::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 1px;
    background: var(--white);
    transform: scaleX(0);
    transition: transform 0.3s ease;
}

.footer-links a:hover::after {
    transform: scaleX(1);
}

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

.footer-bottom {
    border-top: 1px solid #2d3748;
    padding-top: 1.5rem;
    color: #718096;
    font-size: .875rem;
}

/* Modal Styles */
.modal {
    display: none;
    position: fixed;
    z-index: 9999;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    overflow-y: auto;
    background: rgba(0, 0, 0, 0.7);
    backdrop-filter: blur(5px);
    animation: fadeIn .3s ease;
}

.modal-content {
    background: var(--white);
    margin: 5% auto;
    padding: 40px;
    border-radius: 16px;
    max-width: 600px;
    width: 90%;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
    animation: slideDown .3s ease;
    position: relative;
}

.modal-large {
    max-width: 800px;
}

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

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

.close-modal {
    position: absolute;
    right: 20px;
    top: 20px;
    font-size: 32px;
    font-weight: bold;
    color: #718096;
    cursor: pointer;
    transition: var(--transition);
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 8px;
    z-index: 10;
}

.close-modal:hover {
    color: var(--text);
    background: var(--bg);
    transform: rotate(90deg);
}

.modal-header {
    display: flex;
    align-items: center;
    gap: 15px;
    margin-bottom: 25px;
    padding-bottom: 20px;
    border-bottom: 2px solid var(--bg);
}

.modal-icon {
    font-size: 2.5rem;
}

.modal-header h2 {
    color: var(--text);
    margin: 0;
    font-size: 1.75rem;
}

.modal-body {
    color: var(--text-light);
    line-height: 1.8;
}

.modal-body h3 {
    color: var(--text);
    margin: 25px 0 15px;
    font-size: 1.25rem;
}

.modal-body p {
    margin-bottom: 15px;
}

.modal-body ul {
    margin: 15px 0;
    padding-left: 20px;
}

.modal-body li {
    margin-bottom: 8px;
    color: var(--text-light);
}

.modal-footer {
    margin-top: 30px;
    padding-top: 20px;
    border-top: 2px solid var(--bg);
    text-align: right;
}

/* Form Styles */
.form-group {
    margin-bottom: 20px;
}

.form-group label {
    display: block;
    margin-bottom: 8px;
    color: var(--text);
    font-weight: 600;
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 12px;
    border: 2px solid #e2e8f0;
    border-radius: 8px;
    font-size: 1rem;
    font-family: inherit;
    transition: var(--transition);
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(102,126,234,.1);
}

.form-group input.error,
.form-group textarea.error {
    border-color: #e53e3e;
}

.form-group input.error:focus,
.form-group textarea.error:focus {
    border-color: #e53e3e;
    box-shadow: 0 0 0 3px rgba(229,62,62,.1);
}

.error-message {
    display: block;
    margin-top: 5px;
    color: #e53e3e;
    font-size: 0.875rem;
}

.success-message {
    text-align: center;
    padding: 40px 20px;
}

.success-icon {
    font-size: 4rem;
    margin-bottom: 20px;
    animation: bounce 1s ease;
}

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

.success-message h3 {
    color: #276749;
    margin-bottom: 10px;
    font-size: 1.5rem;
}

.success-message p {
    color: var(--text-light);
}

/* Loading Spinner */
.spinner {
    display: inline-block;
    width: 20px;
    height: 20px;
    border: 3px solid rgba(255,255,255,.3);
    border-radius: 50%;
    border-top-color: #fff;
    animation: spin 1s ease-in-out infinite;
}

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

/* Responsive */
@media (max-width: 968px) {
    .about-container {
        grid-template-columns: 1fr;
    }
    .about-image {
        order: -1;
    }
}

@media (max-width: 768px) {
    .nav-menu {
        display: none;
    }
    .hero-buttons {
        flex-direction: column;
        align-items: center;
    }
    .btn {
        width: 100%;
        max-width: 280px;
    }
    .stats-grid {
        grid-template-columns: 1fr;
    }
    .modal-content {
        margin: 10% auto;
        padding: 30px 20px;
    }
}

@media (max-width: 640px) {
    .hero-section {
        padding: 8rem 1rem 4rem;
    }
    .solution-box {
        font-size: 1.5rem;
        padding: 0.5rem 1rem;
    }
    .features-grid {
        grid-template-columns: 1fr;
    }
}

@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after {
        animation-duration: .01ms !important;
        transition-duration: .01ms !important;
    }
}