/* ===== RESET & BASE STYLES ===== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    /* Professional Dark Colors */
    --primary-color: #1e40af;
    --primary-dark: #1e3a8a;
    --primary-light: #3b82f6;
    --secondary-color: #374151;
    --accent-color: #6b7280;
    --accent-dark: #4b5563;
    --accent-light: #9ca3af;
    
    /* Text Colors */
    --text-primary: #111827;
    --text-secondary: #6b7280;
    --text-light: #9ca3af;
    --text-white: #ffffff;
    
    /* Background Colors */
    --bg-primary: #ffffff;
    --bg-secondary: #f9fafb;
    --bg-accent: #f3f4f6;
    --bg-dark: #111827;
    --bg-gradient-1: linear-gradient(135deg, #1e40af 0%, #1e3a8a 100%);
    --bg-gradient-2: linear-gradient(135deg, #374151 0%, #111827 100%);
    --bg-gradient-3: linear-gradient(135deg, #1e40af 0%, #374151 100%);
    --bg-gradient-tech: linear-gradient(135deg, #1e40af 0%, #374151 50%, #111827 100%);
    
    /* Border & Shadow */
    --border-color: #e5e7eb;
    --border-light: #f3f4f6;
    --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
    --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1);
    --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1);
    --shadow-xl: 0 20px 25px -5px rgb(0 0 0 / 0.1);
    --shadow-glow: 0 0 20px rgba(30, 64, 175, 0.3);
    
    /* Typography */
    --font-primary: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --font-display: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    
    /* Spacing - Reduced for cozier feel */
    --space-xs: 0.5rem;
    --space-sm: 0.75rem;
    --space-md: 1rem;
    --space-lg: 1.5rem;
    --space-xl: 2rem;
    --space-2xl: 2.5rem;
    
    /* Border Radius */
    --radius-sm: 0.5rem;
    --radius-md: 0.75rem;
    --radius-lg: 1rem;
    --radius-xl: 1.5rem;
    
    /* Transitions */
    --transition-fast: 0.2s ease-out;
    --transition-normal: 0.3s ease-out;
    --transition-slow: 0.5s ease-out;
}

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

/* ===== HEADER STYLES ===== */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border-light);
    transition: var(--transition-normal);
}

.nav {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--space-lg);
    height: 70px;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.nav-brand {
    font-family: var(--font-display);
    font-size: 1.5rem;
    font-weight: 700;
    background: var(--bg-gradient-tech);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.nav-links {
    display: flex;
    align-items: center;
    gap: var(--space-xl);
}

.nav-link {
    color: var(--text-secondary);
    text-decoration: none;
    font-weight: 500;
    font-size: 0.9rem;
    position: relative;
    transition: var(--transition-normal);
    padding: var(--space-xs) var(--space-sm);
    border-radius: var(--radius-sm);
}

.nav-link:hover {
    color: var(--primary-color);
    background: rgba(99, 102, 241, 0.1);
}

.nav-toggle {
    display: none;
    flex-direction: column;
    cursor: pointer;
    gap: 4px;
}

.nav-toggle span {
    width: 25px;
    height: 3px;
    background: var(--text-primary);
    border-radius: 2px;
    transition: var(--transition-normal);
}

/* ===== MAIN CONTENT STYLES ===== */
main {
    padding-top: 70px;
}

/* Hero Section */
.hero {
    background: var(--bg-gradient-tech);
    color: var(--text-white);
    padding: 120px var(--space-lg) 80px; /* Increased top/bottom padding */
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    min-height: 60vh;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: 
        radial-gradient(circle at 20% 80%, rgba(30, 64, 175, 0.1) 0%, transparent 50%),
        radial-gradient(circle at 80% 20%, rgba(55, 65, 81, 0.1) 0%, transparent 50%),
        radial-gradient(circle at 40% 40%, rgba(17, 24, 39, 0.05) 0%, transparent 50%);
    pointer-events: none;
}

.hero-content {
    max-width: 800px;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 2rem; /* Increased gap between elements */
}

.hero-title {
    font-family: var(--font-display);
    font-size: clamp(2rem, 4vw, 3rem);
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: var(--space-md);
    color: var(--text-white);
    opacity: 0;
    transform: translateY(30px);
    animation: fadeInUp 1s ease-out 0.2s forwards;
}

.hero-subtitle {
    font-size: clamp(1.1rem, 2vw, 1.25rem);
    color: rgba(255, 255, 255, 0.9);
    margin-bottom: var(--space-lg);
    font-weight: 400;
    line-height: 1.6;
    opacity: 0;
    transform: translateY(30px);
    animation: fadeInUp 1s ease-out 0.4s forwards;
}

.hero-features {
    display: flex;
    justify-content: center;
    gap: var(--space-lg);
    margin-bottom: var(--space-xl);
    flex-wrap: wrap;
    opacity: 0;
    transform: translateY(30px);
    animation: fadeInUp 1s ease-out 0.5s forwards;
}

.hero-feature {
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    color: rgba(255, 255, 255, 0.9);
    padding: var(--space-sm) var(--space-md);
    border-radius: var(--radius-lg);
    font-size: 0.9rem;
    font-weight: 500;
    border: 1px solid rgba(255, 255, 255, 0.2);
    transition: var(--transition-normal);
    display: flex;
    align-items: center;
    gap: var(--space-xs);
}

.hero-feature .material-symbols-outlined {
    font-size: 1.2rem;
    opacity: 0.9;
}

.hero-feature:hover {
    background: rgba(255, 255, 255, 0.2);
    transform: translateY(-2px);
}

.hero-cta {
    display: inline-flex;
    align-items: center;
    gap: var(--space-sm);
    background: rgba(255, 255, 255, 0.2);
    backdrop-filter: blur(10px);
    color: white;
    padding: var(--space-md) var(--space-xl);
    border-radius: var(--radius-lg);
    text-decoration: none;
    font-weight: 600;
    font-size: 1.1rem;
    border: 1px solid rgba(255, 255, 255, 0.3);
    transition: var(--transition-normal);
    opacity: 0;
    transform: translateY(30px);
    animation: fadeInUp 1s ease-out 0.6s forwards;
}

.hero-cta .material-symbols-outlined {
    font-size: 1.2rem;
    transition: var(--transition-normal);
}

.hero-cta:hover {
    background: rgba(255, 255, 255, 0.3);
    transform: translateY(-2px);
    box-shadow: var(--shadow-xl);
    border-color: rgba(255, 255, 255, 0.5);
}

.hero-cta:hover .material-symbols-outlined {
    transform: translateX(3px);
}

/* About Section */
.about {
    padding: var(--space-2xl) 0;
    background: var(--bg-primary);
}

.about-content {
    max-width: 1000px;
    margin: 0 auto;
    padding: 0 var(--space-lg);
    text-align: center;
}

.section-title {
    font-family: var(--font-display);
    font-size: clamp(2rem, 4vw, 2.5rem);
    font-weight: 700;
    margin-bottom: var(--space-lg);
    background: var(--bg-gradient-tech);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.about-text {
    font-size: 1.2rem;
    color: var(--text-secondary);
    line-height: 1.7;
    margin-bottom: var(--space-xl);
}

.about-stats {
    display: flex;
    justify-content: center;
    gap: var(--space-xl);
    flex-wrap: wrap;
    margin-top: var(--space-lg);
}

.stat-item {
    display: flex;
    align-items: center;
    gap: var(--space-xs);
    background: var(--bg-secondary);
    padding: var(--space-sm) var(--space-md);
    border-radius: var(--radius-lg);
    border: 1px solid var(--border-color);
    transition: var(--transition-normal);
}

.stat-item:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.stat-item .material-symbols-outlined {
    color: var(--primary-color);
    font-size: 1.3rem;
}

.stat-text {
    font-weight: 600;
    color: var(--text-primary);
    font-size: 0.9rem;
}

/* Services Section */
.services {
    padding: var(--space-2xl) 0;
    background: var(--bg-secondary);
}

.services-content {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--space-lg);
}

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

.service-card {
    background: var(--bg-primary);
    padding: var(--space-xl);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-md);
    text-align: center;
    transition: var(--transition-normal);
    border: 1px solid var(--border-color);
    position: relative;
    overflow: hidden;
}

.service-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: var(--bg-gradient-tech);
    opacity: 0;
    transition: var(--transition-normal);
    z-index: 1;
}

.service-card:hover::before {
    opacity: 0.05;
}

.service-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-xl);
    border-color: var(--primary-light);
}

.service-card > * {
    position: relative;
    z-index: 2;
}

.service-icon {
    width: 60px;
    height: 60px;
    margin: 0 auto var(--space-md);
    background: var(--bg-gradient-tech);
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    transition: var(--transition-normal);
}

.service-icon .material-symbols-outlined {
    font-size: 2rem;
}

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

.service-title {
    font-size: 1.3rem;
    font-weight: 600;
    margin-bottom: var(--space-sm);
    color: var(--text-primary);
}

.service-description {
    color: var(--text-secondary);
    line-height: 1.6;
}

/* Clients Section */
.clients {
    padding: var(--space-2xl) 0;
    background: var(--bg-primary);
}

.clients-content {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--space-lg);
}

.clients-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: var(--space-lg);
    margin-top: var(--space-xl);
    align-items: stretch;
}

.client-card {
    background: var(--bg-secondary);
    padding: var(--space-lg);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-md);
    transition: var(--transition-normal);
    border: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    justify-content: center;
    height: 140px;
    text-decoration: none;
    position: relative;
    overflow: hidden;
}

.client-content {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: var(--space-sm);
    width: 100%;
}

.client-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(99, 102, 241, 0.1), transparent);
    transition: left 0.6s ease;
}

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

.client-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-xl);
    text-decoration: none;
    border-color: var(--primary-light);
}

.client-logo {
    max-width: 100%;
    max-height: 60px;
    width: auto;
    height: auto;
    object-fit: contain;
    transition: var(--transition-normal);
    /* Keep logos colorful - remove grayscale filter */
}

.client-name {
    font-size: 0.8rem;
    color: var(--text-secondary);
    font-weight: 500;
    text-align: center;
    opacity: 0.8;
    transition: var(--transition-normal);
}

.client-card:hover .client-logo {
    transform: scale(1.05);
}

.client-card:hover .client-name {
    color: var(--primary-color);
    opacity: 1;
}

.more-clients {
    background: var(--bg-gradient-tech);
    color: white;
    border: none;
}

.more-clients:hover {
    background: var(--bg-gradient-2);
    transform: translateY(-5px);
}

.more-text {
    text-align: center;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--space-xs);
}

.plus-icon {
    font-size: 2rem;
    font-weight: 300;
    line-height: 1;
}

.more-label {
    font-size: 1rem;
    font-weight: 600;
    letter-spacing: 0.5px;
}

/* Contact Section */
.contact {
    padding: var(--space-2xl) 0;
    background: var(--bg-secondary);
}

.contact-content {
    max-width: 800px;
    margin: 0 auto;
    padding: 0 var(--space-lg);
}

.contact-form {
    background: var(--bg-primary);
    padding: var(--space-xl);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-lg);
    margin-top: var(--space-xl);
    border: 1px solid var(--border-color);
}

.form-group {
    margin-bottom: var(--space-lg);
}

.form-label {
    display: block;
    margin-bottom: var(--space-xs);
    font-weight: 600;
    color: var(--text-primary);
}

.form-input,
.form-textarea {
    width: 100%;
    padding: var(--space-md);
    border: 2px solid var(--border-color);
    border-radius: var(--radius-md);
    font-size: 1rem;
    font-family: var(--font-primary);
    transition: var(--transition-normal);
    background: var(--bg-primary);
}

.form-input:focus,
.form-textarea:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.1);
}

.form-textarea {
    resize: vertical;
    min-height: 120px;
}

.form-submit {
    background: var(--bg-gradient-tech);
    color: white;
    padding: var(--space-md) var(--space-xl);
    border: none;
    border-radius: var(--radius-md);
    font-size: 1.1rem;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition-normal);
    width: 100%;
}

.form-submit:hover {
    background: var(--bg-gradient-1);
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.form-submit:disabled {
    opacity: 0.6;
    cursor: not-allowed;
    transform: none;
}

/* ===== FOOTER STYLES ===== */
.footer {
    background: var(--text-primary);
    color: white;
    padding: var(--space-xl) 0;
    text-align: center;
}

.footer-content {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--space-lg);
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: var(--space-lg);
}

.footer-info {
    flex: 1;
}

.footer-tagline {
    font-size: 1.1rem;
    margin-bottom: var(--space-xs);
    opacity: 0.9;
}

.footer-copyright {
    font-size: 0.9rem;
    opacity: 0.7;
}

.footer-links {
    display: flex;
    gap: var(--space-lg);
}

.footer-link {
    color: white;
    text-decoration: none;
    opacity: 0.8;
    transition: var(--transition-normal);
}

.footer-link:hover {
    opacity: 1;
    text-decoration: underline;
}

/* ===== WHATSAPP BUTTON ===== */
.whatsapp-float {
    position: fixed;
    width: 60px;
    height: 60px;
    bottom: 30px;
    right: 30px;
    background: #25d366;
    color: white;
    border-radius: 50%;
    text-align: center;
    font-size: 28px;
    box-shadow: 0 4px 20px rgba(37, 211, 102, 0.4);
    z-index: 1000;
    transition: var(--transition-normal);
    display: flex;
    align-items: center;
    justify-content: center;
    text-decoration: none;
    animation: pulse-whatsapp 2s infinite;
}

.whatsapp-float:hover {
    background: #128c7e;
    transform: scale(1.1);
    box-shadow: 0 6px 25px rgba(37, 211, 102, 0.6);
    color: white;
    text-decoration: none;
}

.whatsapp-float svg {
    width: 32px;
    height: 32px;
    fill: currentColor;
}

@keyframes pulse-whatsapp {
    0% {
        box-shadow: 0 4px 20px rgba(37, 211, 102, 0.4);
    }
    50% {
        box-shadow: 0 4px 20px rgba(37, 211, 102, 0.4), 0 0 0 10px rgba(37, 211, 102, 0.1);
    }
    100% {
        box-shadow: 0 4px 20px rgba(37, 211, 102, 0.4);
    }
}

/* WhatsApp tooltip */
.whatsapp-float::before {
    content: 'Chat with me on WhatsApp';
    position: absolute;
    right: 70px;
    top: 50%;
    transform: translateY(-50%);
    background: var(--text-primary);
    color: white;
    padding: 8px 12px;
    border-radius: 6px;
    font-size: 14px;
    font-weight: 500;
    white-space: nowrap;
    opacity: 0;
    visibility: hidden;
    transition: var(--transition-normal);
    font-family: var(--font-primary);
}

.whatsapp-float::after {
    content: '';
    position: absolute;
    right: 60px;
    top: 50%;
    transform: translateY(-50%);
    width: 0;
    height: 0;
    border-left: 8px solid var(--text-primary);
    border-top: 8px solid transparent;
    border-bottom: 8px solid transparent;
    opacity: 0;
    visibility: hidden;
    transition: var(--transition-normal);
}

.whatsapp-float:hover::before,
.whatsapp-float:hover::after {
    opacity: 1;
    visibility: visible;
}

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

@keyframes float {
    0%, 100% {
        transform: translateY(0px);
    }
    50% {
        transform: translateY(-10px);
    }
}

/* ===== RESPONSIVE DESIGN ===== */
@media (max-width: 1024px) {
    .nav {
        padding: 0 var(--space-md);
        height: 60px;
    }
    
    .nav-links {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background: rgba(255, 255, 255, 0.98);
        backdrop-filter: blur(20px);
        flex-direction: column;
        padding: var(--space-lg);
        border-top: 1px solid var(--border-color);
        gap: var(--space-md);
        z-index: 999;
        opacity: 0;
        transform: translateY(-10px);
        transition: all 0.3s ease;
    }
    
    .nav-links.active {
        display: flex;
        opacity: 1;
        transform: translateY(0);
    }
    
    .nav-toggle {
        display: flex;
    }
    
    .nav-toggle.active span:nth-child(1) {
        transform: rotate(45deg) translate(5px, 5px);
    }
    
    .nav-toggle.active span:nth-child(2) {
        opacity: 0;
    }
    
    .nav-toggle.active span:nth-child(3) {
        transform: rotate(-45deg) translate(7px, -6px);
    }
    
    main {
        padding-top: 60px;
    }
    
    .hero {
        min-height: 60vh;
    }
    
    .hero-features {
        gap: var(--space-sm);
    }
    
    .hero-feature {
        font-size: 0.85rem;
        padding: var(--space-xs) var(--space-sm);
    }
    
    .hero-content {
        padding: 0 var(--space-md);
    }
    
    .services-grid {
        grid-template-columns: 1fr;
        gap: var(--space-md);
    }
    
    .clients-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: var(--space-md);
    }
    
    .client-card {
        padding: var(--space-md);
        height: 120px;
    }
    
    .client-logo {
        max-height: 50px;
    }
    
    .client-name {
        font-size: 0.75rem;
    }
    
    .about-stats {
        gap: var(--space-md);
    }
    
    .footer-content {
        flex-direction: column;
        text-align: center;
    }
    
    .footer-links {
        justify-content: center;
    }
    
    .whatsapp-float {
        width: 55px;
        height: 55px;
        bottom: 20px;
        right: 20px;
        font-size: 24px;
    }
    
    .whatsapp-float svg {
        width: 28px;
        height: 28px;
    }
    
    .whatsapp-float::before,
    .whatsapp-float::after {
        display: none;
    }
}

@media (max-width: 480px) {
    .contact-form {
        padding: var(--space-lg);
    }
    
    .form-group {
        margin-bottom: var(--space-md);
    }
    
    .clients-grid {
        grid-template-columns: 1fr;
        gap: var(--space-md);
    }
    
    .client-card {
        padding: var(--space-md);
        height: 110px;
    }
    
    .client-logo {
        max-height: 45px;
    }
    
    .client-name {
        font-size: 0.7rem;
    }
}

/* ===== UTILITY CLASSES ===== */
.text-center { text-align: center; }
.text-left { text-align: left; }
.text-right { text-align: right; }

.mb-0 { margin-bottom: 0; }
.mb-1 { margin-bottom: var(--space-xs); }
.mb-2 { margin-bottom: var(--space-sm); }
.mb-3 { margin-bottom: var(--space-md); }
.mb-4 { margin-bottom: var(--space-lg); }

.mt-0 { margin-top: 0; }
.mt-1 { margin-top: var(--space-xs); }
.mt-2 { margin-top: var(--space-sm); }
.mt-3 { margin-top: var(--space-md); }
.mt-4 { margin-top: var(--space-lg); }

.hidden { display: none; }
.visible { display: block; }

/* ===== SCROLL BEHAVIOR ===== */
html {
    scroll-behavior: smooth;
}

/* ===== LOADING STATES ===== */
.loading {
    opacity: 0.6;
    pointer-events: none;
}

.spinner {
    display: inline-block;
    width: 20px;
    height: 20px;
    border: 2px solid #f3f3f3;
    border-top: 2px solid var(--primary-color);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}