/* ============================================
   SHANVA CONSULTING - PREMIUM ENTERPRISE THEME
   ============================================ */

/* Root / CSS Variables */
:root {
    --color-dark: #0f172a;
    --color-accent: #D94E28;
    --color-text: #ffffff;
    --color-text-muted: #b0b9c6;
    --color-border: #1e293b;
    --color-card-bg: #1a1f35;
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 1.5rem;
    --spacing-lg: 2rem;
    --spacing-xl: 3rem;
    --spacing-xxl: 4rem;
    --font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-family);
    background-color: var(--color-dark);
    color: var(--color-text);
    line-height: 1.6;
    font-size: 16px;
}

/* Utilities */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-lg);
}

.highlight {
    color: var(--color-accent);
    font-weight: 700;
}

/* Buttons */
.cta-button {
    display: inline-block;
    padding: var(--spacing-sm) var(--spacing-lg);
    background-color: var(--color-accent);
    color: white;
    border: none;
    border-radius: 6px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    text-decoration: none;
    text-align: center;
    white-space: nowrap;
}

.cta-button:hover {
    background-color: #c83a1c;
    transform: translateY(-2px);
    box-shadow: 0 10px 30px rgba(217, 78, 40, 0.2);
}

.cta-button:active {
    transform: translateY(0);
}

.cta-header {
    display: none;
}

@media (min-width: 768px) {
    .cta-header {
        display: inline-block;
    }
}

.cta-primary {
    background-color: var(--color-accent);
    width: 100%;
}

.cta-primary:hover {
    background-color: #c83a1c;
}

.cta-secondary {
    display: inline-block;
    padding: var(--spacing-sm) var(--spacing-lg);
    color: var(--color-accent);
    border: 2px solid var(--color-accent);
    background: transparent;
    border-radius: 6px;
    font-weight: 600;
    text-decoration: none;
    transition: var(--transition);
    margin-top: var(--spacing-sm);
}

.cta-secondary:hover {
    background-color: var(--color-accent);
    color: white;
}

/* Header / Navigation */
.header {
    position: sticky;
    top: 0;
    z-index: 100;
    background-color: rgba(15, 23, 42, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--color-border);
}

.header-content {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--spacing-lg) 0;
}

.logo {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    text-decoration: none;
    color: var(--color-text);
    font-weight: 700;
    font-size: 1.25rem;
    transition: var(--transition);
}

.logo:hover {
    color: var(--color-accent);
}

.logo-text {
    display: none;
}

@media (min-width: 640px) {
    .logo-text {
        display: inline;
    }
}

.nav {
    display: none;
    gap: var(--spacing-xl);
    align-items: center;
}

@media (min-width: 768px) {
    .nav {
        display: flex;
    }
}

.nav-link {
    color: var(--color-text-muted);
    text-decoration: none;
    font-weight: 500;
    transition: var(--transition);
}

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

.hamburger {
    display: flex;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: var(--spacing-sm);
    margin: calc(-1 * var(--spacing-sm));
}

@media (min-width: 768px) {
    .hamburger {
        display: none;
    }
}

.hamburger span {
    width: 24px;
    height: 3px;
    background-color: var(--color-text);
    border-radius: 2px;
    transition: var(--transition);
}

.hamburger.active span:nth-child(1) {
    transform: rotate(45deg) translate(10px, 10px);
}

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

.hamburger.active span:nth-child(3) {
    transform: rotate(-45deg) translate(7px, -7px);
}

.mobile-menu {
    display: none;
    flex-direction: column;
    gap: var(--spacing-md);
    padding: var(--spacing-lg);
    border-top: 1px solid var(--color-border);
}

.mobile-menu.active {
    display: flex;
}

/* Hero Section */
.hero {
    padding: var(--spacing-xxl) 0;
    text-align: center;
}

@media (min-width: 768px) {
    .hero {
        padding: 6rem 0;
    }
}

.hero-headline {
    font-size: 2rem;
    font-weight: 700;
    line-height: 1.3;
    margin-bottom: var(--spacing-lg);
}

@media (min-width: 768px) {
    .hero-headline {
        font-size: 3.5rem;
    }
}

.hero-subhead {
    font-size: 1.125rem;
    color: var(--color-text-muted);
    max-width: 700px;
    margin: 0 auto var(--spacing-xl);
    line-height: 1.7;
}

.hero-ctas {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
    justify-content: center;
    margin-bottom: var(--spacing-xxl);
}

@media (min-width: 640px) {
    .hero-ctas {
        flex-direction: row;
    }
}

.trust-strip {
    padding: var(--spacing-lg);
    border-top: 1px solid var(--color-border);
    border-bottom: 1px solid var(--color-border);
    text-align: center;
}

.trust-strip p {
    font-weight: 600;
    margin-bottom: var(--spacing-sm);
    color: var(--color-text);
}

.tech-badges {
    display: block;
    color: var(--color-text-muted);
    font-size: 0.9rem;
    font-weight: 500;
}

/* Results Section */
.results {
    padding: var(--spacing-xxl) 0;
    background: linear-gradient(135deg, rgba(26, 31, 53, 0.5) 0%, rgba(217, 78, 40, 0.05) 100%);
}

.results h2,
.services h2,
.about h2,
.engagement-model h2,
.social-proof h2,
.contact h2 {
    font-size: 2rem;
    margin-bottom: var(--spacing-xl);
    text-align: center;
}

@media (min-width: 768px) {
    .results h2,
    .services h2,
    .about h2,
    .engagement-model h2,
    .social-proof h2,
    .contact h2 {
        font-size: 2.5rem;
    }
}

.results-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-xl);
    max-width: 600px;
    margin: 0 auto;
}

@media (min-width: 768px) {
    .results-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

.result-card {
    background: rgba(217, 78, 40, 0.1);
    border: 1px solid var(--color-border);
    padding: var(--spacing-xl);
    border-radius: 12px;
    text-align: center;
    transition: var(--transition);
}

.result-card:hover {
    background: rgba(217, 78, 40, 0.15);
    border-color: var(--color-accent);
    transform: translateY(-4px);
}

.counter {
    font-size: 3rem;
    font-weight: 700;
    color: var(--color-accent);
    display: block;
    margin-bottom: var(--spacing-sm);
}

.counter-label {
    font-weight: 500;
    color: var(--color-text-muted);
    font-size: 0.95rem;
}

.counter-unit {
    font-size: 1.5rem;
    color: var(--color-accent);
    font-weight: 600;
}

/* Services Section */
.services {
    padding: var(--spacing-xxl) 0;
}

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

.services-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-lg);
}

@media (min-width: 768px) {
    .services-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

.service-card {
    background: var(--color-card-bg);
    border: 1px solid var(--color-border);
    padding: var(--spacing-xl);
    border-radius: 12px;
    transition: var(--transition);
}

.service-card:hover {
    border-color: var(--color-accent);
    background: rgba(217, 78, 40, 0.05);
    transform: translateY(-4px);
}

.service-icon {
    font-size: 2.5rem;
    margin-bottom: var(--spacing-md);
}

.service-card h3 {
    font-size: 1.25rem;
    margin-bottom: var(--spacing-md);
    color: var(--color-text);
}

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

/* About Section */
.about {
    padding: var(--spacing-xxl) 0;
    background: linear-gradient(135deg, rgba(26, 31, 53, 0.5) 0%, rgba(217, 78, 40, 0.05) 100%);
}

.about-content {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-xxl);
    align-items: start;
}

@media (min-width: 768px) {
    .about-content {
        grid-template-columns: 2fr 1fr;
    }
}

.about-text p {
    margin-bottom: var(--spacing-lg);
    color: var(--color-text-muted);
    line-height: 1.8;
}

.about-cta {
    margin-top: var(--spacing-lg);
}

.social-link {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-sm);
    color: var(--color-accent);
    text-decoration: none;
    font-weight: 600;
    transition: var(--transition);
}

.social-link:hover {
    transform: translateX(4px);
}

.about-stats {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-lg);
}

@media (min-width: 640px) {
    .about-stats {
        grid-template-columns: repeat(3, 1fr);
    }
}

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

.stat-block {
    background: var(--color-card-bg);
    padding: var(--spacing-lg);
    border-radius: 8px;
    border: 1px solid var(--color-border);
    text-align: center;
}

.stat-number {
    font-size: 2rem;
    font-weight: 700;
    color: var(--color-accent);
    margin-bottom: var(--spacing-sm);
}

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

/* Engagement Model Section */
.engagement-model {
    padding: var(--spacing-xxl) 0;
}

.engagement-steps {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-lg);
    align-items: start;
    max-width: 900px;
    margin: 0 auto;
}

@media (min-width: 768px) {
    .engagement-steps {
        grid-template-columns: 1fr auto 1fr auto 1fr;
        gap: var(--spacing-xl);
        align-items: center;
    }
}

.step {
    background: var(--color-card-bg);
    border: 1px solid var(--color-border);
    padding: var(--spacing-xl);
    border-radius: 12px;
    text-align: center;
    transition: var(--transition);
}

.step:hover {
    border-color: var(--color-accent);
    background: rgba(217, 78, 40, 0.05);
}

.step-number {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 50px;
    height: 50px;
    background: var(--color-accent);
    color: white;
    border-radius: 50%;
    font-weight: 700;
    font-size: 1.5rem;
    margin-bottom: var(--spacing-md);
}

.step h3 {
    font-size: 1.25rem;
    margin-bottom: var(--spacing-sm);
}

.step-duration {
    color: var(--color-accent);
    font-weight: 600;
    font-size: 0.9rem;
    margin-bottom: var(--spacing-md);
}

.step-description {
    color: var(--color-text-muted);
    line-height: 1.6;
    font-size: 0.95rem;
}

.step-arrow {
    color: var(--color-accent);
    font-size: 1.5rem;
    font-weight: 700;
    text-align: center;
    display: none;
}

@media (min-width: 768px) {
    .step-arrow {
        display: block;
    }
}

/* Social Proof Section */
.social-proof {
    padding: var(--spacing-xxl) 0;
    background: linear-gradient(135deg, rgba(26, 31, 53, 0.5) 0%, rgba(217, 78, 40, 0.05) 100%);
}

.case-studies {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-xxl);
}

@media (min-width: 768px) {
    .case-studies {
        grid-template-columns: repeat(3, 1fr);
    }
}

.case-study {
    background: var(--color-card-bg);
    border: 1px solid var(--color-border);
    padding: var(--spacing-lg);
    border-radius: 12px;
    transition: var(--transition);
}

.case-study:hover {
    border-color: var(--color-accent);
    background: rgba(217, 78, 40, 0.05);
}

.case-quote {
    font-style: italic;
    color: var(--color-text);
    margin-bottom: var(--spacing-md);
    line-height: 1.7;
}

.case-context {
    color: var(--color-text-muted);
    font-size: 0.9rem;
    font-weight: 500;
}

.tech-stack {
    text-align: center;
    padding: var(--spacing-xl);
    background: var(--color-card-bg);
    border: 1px solid var(--color-border);
    border-radius: 12px;
}

.tech-label {
    color: var(--color-text-muted);
    margin-bottom: var(--spacing-md);
    font-weight: 600;
}

.tech-list {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: var(--spacing-sm);
}

.tech-tag {
    background: rgba(217, 78, 40, 0.15);
    color: var(--color-accent);
    padding: 0.5rem var(--spacing-md);
    border-radius: 20px;
    font-size: 0.9rem;
    font-weight: 500;
    border: 1px solid rgba(217, 78, 40, 0.3);
}

/* Contact Section */
.contact {
    padding: var(--spacing-xxl) 0;
}

.contact-layout {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-xxl);
    max-width: 900px;
    margin: 0 auto;
}

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

.contact-form-wrapper h3,
.contact-cta h3 {
    margin-bottom: var(--spacing-lg);
    font-size: 1.5rem;
}

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

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

.form-group label {
    margin-bottom: var(--spacing-sm);
    font-weight: 500;
}

.form-group input,
.form-group textarea {
    padding: var(--spacing-md);
    background: var(--color-card-bg);
    border: 1px solid var(--color-border);
    border-radius: 6px;
    color: var(--color-text);
    font-family: var(--font-family);
    font-size: 1rem;
    transition: var(--transition);
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--color-accent);
    background: rgba(217, 78, 40, 0.05);
}

.contact-form button {
    margin-top: var(--spacing-md);
}

.contact-cta {
    background: var(--color-card-bg);
    border: 1px solid var(--color-border);
    padding: var(--spacing-xl);
    border-radius: 12px;
    display: flex;
    flex-direction: column;
}

.contact-cta p {
    color: var(--color-text-muted);
    margin-bottom: var(--spacing-lg);
    line-height: 1.7;
}

.contact-cta button {
    width: 100%;
}

/* Footer */
.footer {
    padding: var(--spacing-xl) 0;
    border-top: 1px solid var(--color-border);
    background: rgba(26, 31, 53, 0.5);
}

.footer-content {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
    text-align: center;
}

@media (min-width: 640px) {
    .footer-content {
        flex-direction: row;
        justify-content: space-between;
        text-align: left;
    }
}

.footer-content p {
    color: var(--color-text-muted);
    font-size: 0.9rem;
}

.footer-links {
    display: flex;
    gap: var(--spacing-lg);
    justify-content: center;
}

@media (min-width: 640px) {
    .footer-links {
        justify-content: flex-end;
    }
}

.footer-link {
    color: var(--color-text-muted);
    text-decoration: none;
    font-size: 0.9rem;
    transition: var(--transition);
}

.footer-link:hover {
    color: var(--color-accent);
}

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

.result-card,
.service-card,
.case-study,
.step {
    animation: fadeInUp 0.6s ease-out forwards;
}

.service-card:nth-child(2) {
    animation-delay: 0.1s;
}

.service-card:nth-child(3) {
    animation-delay: 0.2s;
}

.service-card:nth-child(4) {
    animation-delay: 0.3s;
}

/* Scrollbar */
::-webkit-scrollbar {
    width: 8px;
}

::-webkit-scrollbar-track {
    background: var(--color-dark);
}

::-webkit-scrollbar-thumb {
    background: var(--color-border);
    border-radius: 4px;
}

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

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