/* ===================================
   CSS VARIABLES - CUSTOMIZE YOUR COLORS HERE
   =================================== */
:root {
    /* Primary Brand Colors - Change these to match your brand */
    --primary-color: #0078d4;        /* Microsoft Blue - main brand color */
    --primary-dark: #005a9e;         /* Darker shade for hover effects */
    --primary-light: #50a6e8;        /* Lighter shade for accents */

    /* Secondary Colors */
    --secondary-color: #2b579a;      /* Deep blue for contrast */
    --accent-color: #00bcf2;         /* Cyan accent */

    /* Neutral Colors */
    --text-dark: #1f1f1f;            /* Main text color */
    --text-light: #605e5c;           /* Secondary text */
    --background-light: #f3f2f1;     /* Light background */
    --background-white: #ffffff;     /* White background */
    --border-color: #e1dfdd;         /* Border color */

    /* Status Colors */
    --success-color: #107c10;        /* Success messages */
    --error-color: #d13438;          /* Error messages */

    /* Spacing */
    --section-padding: 80px 20px;
    --container-max-width: 1200px;

    /* Typography - Change font families here */
    --font-primary: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', 'Oxygen', 'Ubuntu', sans-serif;
    --font-heading: 'Segoe UI', -apple-system, BlinkMacSystemFont, sans-serif;
}

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

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

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

/* ===================================
   UTILITY CLASSES
   =================================== */
.container {
    max-width: var(--container-max-width);
    margin: 0 auto;
    padding: 0 20px;
}

.section-title {
    font-family: var(--font-heading);
    font-size: 2.5rem;
    font-weight: 600;
    text-align: center;
    margin-bottom: 1rem;
    color: var(--text-dark);
    position: relative;
    display: inline-block;
    width: 100%;
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 50%;
    transform: translateX(-50%);
    width: 80px;
    height: 4px;
    background: linear-gradient(90deg, var(--primary-color), var(--secondary-color));
    border-radius: 2px;
}

.section-subtitle {
    text-align: center;
    color: var(--text-light);
    font-size: 1.1rem;
    margin-bottom: 3rem;
    margin-top: 1.5rem;
}

/* ===================================
   NAVIGATION
   =================================== */
.navbar {
    background: var(--background-white);
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
    position: sticky;
    top: 0;
    z-index: 1000;
    padding: 1rem 0;
}

.navbar .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.nav-brand {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary-color);
}

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

.nav-link {
    text-decoration: none;
    color: var(--text-dark);
    font-weight: 500;
    transition: color 0.3s ease;
}

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

/* Hamburger menu */
.hamburger {
    display: none;
    flex-direction: column;
    background: none;
    border: none;
    cursor: pointer;
    padding: 0.5rem;
    z-index: 1001;
}

.hamburger-line {
    width: 25px;
    height: 3px;
    background-color: var(--text-dark);
    margin: 3px 0;
    transition: all 0.3s ease;
    border-radius: 2px;
}

.hamburger.active .hamburger-line:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
}

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

.hamburger.active .hamburger-line:nth-child(3) {
    transform: rotate(-45deg) translate(8px, -8px);
}

/* ===================================
   HERO SECTION
   =================================== */
.hero {
    position: relative;
    background: linear-gradient(-45deg, #0078d4, #005a9e, #106ebe, #0078d4);
    background-size: 400% 400%;
    animation: gradientShift 20s ease-in-out infinite;
    color: white;
    padding: 120px 20px;
    text-align: center;
    overflow: hidden;
}

.hero-background {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    overflow: hidden;
    z-index: 0;
}

.hero-shape {
    position: absolute;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
}

.hero-shape-1 {
    width: 300px;
    height: 300px;
    top: -100px;
    right: -50px;
    animation: float 20s ease-in-out infinite;
}

.hero-shape-2 {
    width: 200px;
    height: 200px;
    bottom: -50px;
    left: 10%;
    animation: float 15s ease-in-out infinite reverse;
}

.hero-shape-3 {
    width: 150px;
    height: 150px;
    top: 50%;
    left: -50px;
    animation: float 18s ease-in-out infinite;
}

.hero .container {
    position: relative;
    z-index: 1;
}

.hero-title {
    font-family: var(--font-heading);
    font-size: 3.5rem;
    font-weight: 700;
    margin-bottom: 1rem;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.2);
    animation: fadeInUp 0.8s ease;
}

.hero-tagline {
    font-size: 1.5rem;
    margin-bottom: 2rem;
    opacity: 0.95;
    text-shadow: 1px 1px 2px rgba(0, 0, 0, 0.2);
    animation: fadeInUp 1s ease;
}

/* Button Styles */
.btn {
    display: inline-block;
    padding: 14px 36px;
    font-size: 1rem;
    font-weight: 600;
    text-decoration: none;
    border-radius: 8px;
    transition: all 0.3s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    border: none;
    cursor: pointer;
    animation: fadeInUp 1.2s ease;
    position: relative;
    overflow: hidden;
}

.btn::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    border-radius: 50%;
    background: rgba(0, 0, 0, 0.1);
    transform: translate(-50%, -50%);
    transition: width 0.6s, height 0.6s;
}

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

.btn-primary {
    background: white;
    color: var(--primary-color);
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
}

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.3);
}

/* ===================================
   SERVICES SECTION
   =================================== */
.services {
    padding: var(--section-padding);
    background: #ffffff;
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.service-card {
    background: white;
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 2rem;
    transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.07);
    position: relative;
    overflow: hidden;
}

.service-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 4px;
    background: linear-gradient(90deg, var(--primary-color), var(--secondary-color));
    transform: scaleX(0);
    transition: transform 0.4s ease;
}

.service-card:hover {
    transform: translateY(-12px);
    box-shadow: 0 20px 40px rgba(0, 120, 212, 0.15);
    border-color: var(--primary-color);
}

.service-card:hover::before {
    transform: scaleX(1);
}

.service-icon {
    color: var(--primary-color);
    margin-bottom: 1.5rem;
    transition: transform 0.4s ease;
}

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

.service-title {
    font-size: 1.5rem;
    font-weight: 600;
    margin-bottom: 1rem;
    color: var(--text-dark);
}

.service-description {
    color: var(--text-light);
    line-height: 1.7;
}

/* ===================================
   ABOUT SECTION
   =================================== */
.about {
    padding: var(--section-padding);
    background: linear-gradient(135deg, #f8f9ff 0%, #f0f4ff 100%);
}

.about-content {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 3rem;
    margin-top: 3rem;
}

.about-text h3 {
    color: var(--primary-color);
    font-size: 1.5rem;
    margin-bottom: 1rem;
    margin-top: 2rem;
}

.about-text h3:first-child {
    margin-top: 0;
}

.about-text p {
    color: var(--text-light);
    margin-bottom: 1.5rem;
    line-height: 1.8;
}

.about-stats {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.stat-card {
    background: white;
    padding: 2rem;
    border-radius: 12px;
    text-align: center;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
    transition: all 0.3s ease;
    border: 2px solid transparent;
}

.stat-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 12px 24px rgba(0, 120, 212, 0.15);
    border-color: var(--primary-color);
}

.stat-number {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--primary-color);
    margin-bottom: 0.5rem;
}

.stat-label {
    color: var(--text-light);
    font-size: 0.95rem;
}

/* ===================================
   TESTIMONIALS SECTION
   =================================== */
.testimonials {
    padding: var(--section-padding);
    background: #ffffff;
    overflow: hidden;
}

.testimonials-wrapper {
    position: relative;
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-top: 3rem;
}

.testimonials-container {
    overflow: hidden;
    width: 100%;
    position: relative;
}

.testimonials-track {
    display: flex;
    transition: transform 0.5s ease-in-out;
    gap: 2rem;
}

.testimonial-card {
    min-width: 100%;
    max-width: 100%;
    background: white;
    border-radius: 16px;
    padding: 2.5rem 2rem;
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.08);
    flex-shrink: 0;
    border: 1px solid rgba(0, 120, 212, 0.1);
    position: relative;
}

.testimonial-card::before {
    content: '\201C';
    position: absolute;
    top: 1rem;
    left: 1.5rem;
    font-size: 4rem;
    color: var(--primary-color);
    opacity: 0.1;
    font-family: Georgia, serif;
}

.testimonial-rating {
    display: flex;
    gap: 0.25rem;
    margin-bottom: 1.5rem;
}

.star {
    color: #fbbf24;
    font-size: 1.5rem;
}

.testimonial-text {
    font-size: 1.125rem;
    line-height: 1.8;
    color: var(--text-dark);
    font-style: italic;
    margin-bottom: 2rem;
}

.testimonial-author {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.author-info {
    flex: 1;
}

.author-name {
    font-weight: 700;
    color: var(--text-dark);
    font-size: 1.1rem;
    margin-bottom: 0.25rem;
}

.author-title {
    color: var(--text-light);
    font-size: 0.95rem;
}

/* Navigation buttons */
.testimonial-nav {
    background: var(--primary-color);
    color: white;
    border: none;
    width: 48px;
    height: 48px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all 0.3s ease;
    flex-shrink: 0;
    z-index: 10;
}

.testimonial-nav:hover {
    background: var(--primary-dark);
    transform: scale(1.1);
}

.testimonial-nav:active {
    transform: scale(0.95);
}

.testimonial-nav:disabled {
    background: var(--border-color);
    cursor: not-allowed;
    transform: scale(1);
}

.testimonial-prev {
    margin-right: 0.5rem;
}

.testimonial-next {
    margin-left: 0.5rem;
}

/* Dots indicator */
.testimonial-dots {
    display: flex;
    justify-content: center;
    gap: 0.5rem;
    margin-top: 2rem;
}

.testimonial-dot {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background: var(--border-color);
    cursor: pointer;
    transition: all 0.3s ease;
}

.testimonial-dot.active {
    background: var(--primary-color);
    width: 32px;
    border-radius: 6px;
}

.testimonial-dot:hover {
    background: var(--primary-light);
}

/* ===================================
   CONTACT SECTION
   =================================== */
.contact {
    padding: var(--section-padding);
    background: linear-gradient(135deg, #f8f9ff 0%, #f0f4ff 100%);
}

.contact-form {
    max-width: 600px;
    margin: 0 auto;
}

.form-group {
    margin-bottom: 1.5rem;
}

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 600;
    color: var(--text-dark);
}

.form-input {
    width: 100%;
    padding: 12px 16px;
    border: 2px solid var(--border-color);
    border-radius: 4px;
    font-size: 1rem;
    font-family: var(--font-primary);
    transition: border-color 0.3s ease;
}

.form-input:focus {
    outline: none;
    border-color: var(--primary-color);
}

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

.error-message {
    display: block;
    color: var(--error-color);
    font-size: 0.875rem;
    margin-top: 0.5rem;
    min-height: 1.2rem;
}

.form-success {
    display: none;
    background: #dff6dd;
    color: var(--success-color);
    padding: 1rem;
    border-radius: 4px;
    margin-top: 1rem;
    border-left: 4px solid var(--success-color);
}

.form-success.show {
    display: block;
}

.contact-form .btn-primary {
    width: 100%;
    background: var(--primary-color);
    color: white;
    margin-top: 1rem;
}

.contact-form .btn-primary:hover {
    background: var(--primary-dark);
}

.contact-form .btn-primary:disabled {
    background: var(--border-color);
    cursor: not-allowed;
    transform: none;
}

/* ===================================
   FOOTER
   =================================== */
.footer {
    background: var(--text-dark);
    color: white;
    padding: 2rem 0;
    text-align: center;
}

.footer p {
    margin: 0;
    opacity: 0.8;
}

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

@keyframes gradientShift {
    0% {
        background-position: 0% 50%;
    }
    50% {
        background-position: 100% 50%;
    }
    100% {
        background-position: 0% 50%;
    }
}

@keyframes float {
    0%, 100% {
        transform: translateY(0) translateX(0);
    }
    25% {
        transform: translateY(-20px) translateX(10px);
    }
    50% {
        transform: translateY(-10px) translateX(-10px);
    }
    75% {
        transform: translateY(-30px) translateX(5px);
    }
}

/* ===================================
   RESPONSIVE DESIGN - MOBILE
   =================================== */
@media (max-width: 768px) {
    /* Typography adjustments */
    .hero-title {
        font-size: 2.5rem;
    }

    .hero-tagline {
        font-size: 1.2rem;
    }

    .section-title {
        font-size: 2rem;
    }

    /* Navigation - Mobile menu */
    .hamburger {
        display: flex;
    }

    .nav-menu {
        position: fixed;
        top: 0;
        right: -100%;
        width: 70%;
        height: 100vh;
        background: var(--background-white);
        flex-direction: column;
        gap: 2rem;
        padding: 5rem 2rem 2rem;
        box-shadow: -2px 0 10px rgba(0, 0, 0, 0.1);
        transition: right 0.3s ease;
        z-index: 999;
    }

    .nav-menu.active {
        right: 0;
    }

    .nav-link {
        font-size: 1.25rem;
        padding: 0.5rem 0;
        border-bottom: 1px solid var(--border-color);
    }

    /* Hero section */
    .hero {
        padding: 80px 20px;
    }

    /* Services grid - single column on mobile */
    .services-grid {
        grid-template-columns: 1fr;
    }

    /* About section - stack vertically */
    .about-content {
        grid-template-columns: 1fr;
    }

    .about-stats {
        flex-direction: row;
        gap: 1rem;
    }

    .stat-card {
        flex: 1;
        padding: 1.5rem 1rem;
    }

    .stat-number {
        font-size: 2rem;
    }

    /* Testimonials - hide nav buttons on mobile */
    .testimonial-nav {
        display: none;
    }

    .testimonials-wrapper {
        gap: 0;
    }

    .testimonial-card {
        min-width: 100%;
        max-width: 100%;
        padding: 2rem 1.5rem;
    }

    .testimonial-text {
        font-size: 1rem;
    }

    /* Section padding */
    :root {
        --section-padding: 60px 20px;
    }
}

@media (max-width: 480px) {
    /* Further adjustments for small phones */
    .hero-title {
        font-size: 2rem;
    }

    .hero-tagline {
        font-size: 1rem;
    }

    .section-title {
        font-size: 1.75rem;
    }

    .about-stats {
        flex-direction: column;
    }

    .btn {
        padding: 10px 24px;
        font-size: 0.95rem;
    }
}

/* ===================================
   TABLET RESPONSIVE (768px - 1024px)
   =================================== */
@media (min-width: 769px) and (max-width: 1024px) {
    .services-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .about-content {
        grid-template-columns: 1fr;
    }
}

/* ===================================
   ACCESSIBILITY IMPROVEMENTS
   =================================== */
/* Focus visible for keyboard navigation */
*:focus-visible {
    outline: 2px solid var(--primary-color);
    outline-offset: 2px;
}

/* Reduced motion for users who prefer it */
@media (prefers-reduced-motion: reduce) {
    * {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
        scroll-behavior: auto !important;
    }
}