/* 
   Imvula Yomusa Consulting Website Styles
   A mobile-first approach with clean, modern design
*/

/* ===== Base Styles ===== */
:root {
    /* Primary Colors */
    --primary-dark: #1A4D8C;    /* Dark blue from logo */
    --primary-medium: #3270B4;  /* Medium blue from logo */
    --primary-light: #6FA3DC;   /* Light blue from logo */
    
    /* Secondary Colors */
    --secondary-dark: #2B3A55;  /* Dark navy for contrast */
    --secondary-medium: #415A77; /* Medium navy */
    
    /* Neutral Colors */
    --neutral-dark: #333333;    /* Nearly black for text */
    --neutral-medium: #666666;  /* Medium gray for secondary text */
    --neutral-light: #999999;   /* Light gray for tertiary text */
    --neutral-bg: #F8F9FA;      /* Very light gray for backgrounds */
    
    /* Accent Colors */
    --accent-success: #28A745;  /* Green for success messages */
    --accent-warning: #FFC107;  /* Yellow for warnings */
    --accent-danger: #DC3545;   /* Red for errors */
    
    /* Fonts */
    --font-heading: 'Montserrat', sans-serif;
    --font-body: 'Open Sans', sans-serif;
    
    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 2rem;
    --spacing-lg: 3rem;
    --spacing-xl: 5rem;
    
    /* Border Radius */
    --border-radius-sm: 4px;
    --border-radius-md: 8px;
    --border-radius-lg: 12px;
    
    /* Shadows */
    --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px rgba(0, 0, 0, 0.1);
    
    /* Transitions */
    --transition-fast: 0.2s ease;
    --transition-medium: 0.3s ease;
    --transition-slow: 0.5s ease;
}

/* Font imports */
@import url('https://fonts.googleapis.com/css2?family=Montserrat:wght@400;500;600;700&family=Open+Sans:wght@300;400;600&display=swap');

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

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

body {
    font-family: var(--font-body);
    line-height: 1.6;
    color: var(--neutral-dark);
    background-color: #ffffff;
    overflow-x: hidden;
}

h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-heading);
    font-weight: 600;
    line-height: 1.3;
    margin-bottom: var(--spacing-sm);
    color: var(--primary-dark);
}

h1 {
    font-size: 2rem;
    font-weight: 700;
}

h2 {
    font-size: 1.75rem;
}

h3 {
    font-size: 1.25rem;
    color: var(--primary-medium);
}

p {
    margin-bottom: var(--spacing-sm);
}

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

a:hover {
    color: var(--primary-dark);
}

ul {
    list-style: none;
}

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

.container {
    width: 90%;
    max-width: 1200px;
    margin: 0 auto;
    padding: var(--spacing-sm) 0;
}

.section-header {
    text-align: center;
    margin-bottom: var(--spacing-lg);
}

.section-divider {
    height: 3px;
    width: 60px;
    background-color: var(--primary-medium);
    margin: var(--spacing-sm) auto;
}

.section-header p {
    color: var(--neutral-medium);
    max-width: 600px;
    margin: 0 auto;
}

.highlight-text {
    color: var(--primary-medium);
    font-weight: 600;
    font-size: 1.1rem;
}

/* ===== Buttons ===== */
.primary-btn, .secondary-btn, .submit-btn, .read-more-btn, .schedule-btn, .contact-btn, .verify-btn {
    display: inline-block;
    padding: 12px 24px;
    border-radius: var(--border-radius-md);
    font-weight: 600;
    font-family: var(--font-heading);
    cursor: pointer;
    transition: all var(--transition-fast);
    border: none;
    text-align: center;
}

.primary-btn, .submit-btn, .schedule-btn {
    background-color: var(--primary-medium);
    color: white;
}

.primary-btn:hover, .submit-btn:hover, .schedule-btn:hover {
    background-color: var(--primary-dark);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.secondary-btn, .read-more-btn, .verify-btn {
    background-color: transparent;
    color: var(--primary-medium);
    border: 2px solid var(--primary-medium);
}

.secondary-btn:hover, .read-more-btn:hover, .verify-btn:hover {
    background-color: var(--primary-light);
    color: white;
    border-color: var(--primary-light);
    transform: translateY(-2px);
    box-shadow: var(--shadow-sm);
}

.contact-btn {
    background-color: var(--primary-medium);
    color: white;
    padding: 8px 16px;
    border-radius: var(--border-radius-sm);
}

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

.back-to-top {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background-color: var(--primary-medium);
    color: white;
    border: none;
    cursor: pointer;
    display: flex;
    justify-content: center;
    align-items: center;
    box-shadow: var(--shadow-md);
    opacity: 0;
    transform: translateY(20px);
    transition: all var(--transition-medium);
    z-index: 99;
}

.back-to-top.show {
    opacity: 1;
    transform: translateY(0);
}

.back-to-top:hover {
    background-color: var(--primary-dark);
}

/* ===== Header ===== */
.header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 100;
    background-color: white;
    box-shadow: var(--shadow-sm);
    transition: all var(--transition-medium);
}

.header.scrolled {
    box-shadow: var(--shadow-md);
}

.header-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 0;
}

.logo img {
    height: 50px;
    transition: all var(--transition-fast);
}

.header.scrolled .logo img {
    height: 40px;
}

.nav-menu {
    display: none;
}

.nav-list {
    display: flex;
    gap: var(--spacing-md);
}

.nav-link {
    color: var(--neutral-dark);
    font-weight: 500;
    position: relative;
}

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

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background-color: var(--primary-medium);
    transition: width var(--transition-medium);
}

.nav-link:hover::after {
    width: 100%;
}

.mobile-menu-toggle {
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    width: 30px;
    height: 21px;
    cursor: pointer;
}

.mobile-menu-toggle span {
    display: block;
    height: 3px;
    width: 100%;
    background-color: var(--primary-dark);
    border-radius: 3px;
    transition: all var(--transition-fast);
}

.mobile-menu-toggle.active span:nth-child(1) {
    transform: translateY(9px) rotate(45deg);
}

.mobile-menu-toggle.active span:nth-child(2) {
    opacity: 0;
}

.mobile-menu-toggle.active span:nth-child(3) {
    transform: translateY(-9px) rotate(-45deg);
}

.mobile-menu {
    position: fixed;
    top: 72px;
    left: 0;
    width: 100%;
    background-color: white;
    box-shadow: var(--shadow-md);
    padding: var(--spacing-md) 0;
    transform: translateY(-100%);
    opacity: 0;
    transition: all var(--transition-medium);
    z-index: 99;
}

.mobile-menu.active {
    transform: translateY(0);
    opacity: 1;
}

.mobile-nav-list {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--spacing-sm);
}

.mobile-nav-link {
    color: var(--neutral-dark);
    font-weight: 500;
    padding: var(--spacing-xs) 0;
    display: block;
    width: 100%;
    text-align: center;
}

.mobile-nav-link:hover {
    color: var(--primary-medium);
    background-color: var(--neutral-bg);
}

/* ===== Hero Section ===== */
.hero-section {
    padding: 120px 0 var(--spacing-xl);
    background-color: var(--neutral-bg);
    position: relative;
    overflow: hidden;
}

.hero-content {
    max-width: 600px;
    margin-bottom: var(--spacing-lg);
}

.hero-content h1 {
    margin-bottom: var(--spacing-md);
}

.hero-content p {
    font-size: 1.1rem;
    color: var(--neutral-medium);
    margin-bottom: var(--spacing-md);
}

.hero-buttons {
    display: flex;
    gap: var(--spacing-sm);
    flex-wrap: wrap;
}

.hero-image {
    max-width: 100%;
    margin: 0 auto;
}

/* ===== About Section ===== */
.about-section {
    padding: var(--spacing-xl) 0;
    background-color: white;
}

.about-content {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-lg);
}

.about-text {
    flex: 1;
}

.about-image {
    flex: 1;
    display: flex;
    justify-content: center;
    align-items: center;
}

.approach-content {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-md);
}

.approach-box {
    background-color: var(--neutral-bg);
    padding: var(--spacing-md);
    border-radius: var(--border-radius-md);
    box-shadow: var(--shadow-sm);
    transition: all var(--transition-medium);
    text-align: center;
}

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

.approach-box .icon {
    font-size: 2rem;
    color: var(--primary-medium);
    margin-bottom: var(--spacing-sm);
}

/* ===== Services Section ===== */
.services-section {
    padding: var(--spacing-xl) 0;
    background-color: var(--neutral-bg);
}

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

.service-card {
    background-color: white;
    border-radius: var(--border-radius-md);
    padding: var(--spacing-md);
    box-shadow: var(--shadow-sm);
    transition: all var(--transition-medium);
    position: relative;
    overflow: hidden;
}

.service-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-md);
}

.service-icon {
    font-size: 2rem;
    color: var(--primary-medium);
    margin-bottom: var(--spacing-sm);
}

.service-details {
    max-height: 0;
    overflow: hidden;
    transition: max-height var(--transition-medium);
}

.service-card.expanded .service-details {
    max-height: 500px;
}

.service-details ul {
    padding-left: var(--spacing-sm);
    margin: var(--spacing-sm) 0;
}

.service-details li {
    position: relative;
    padding-left: var(--spacing-sm);
    margin-bottom: var(--spacing-xs);
}

.service-details li::before {
    content: '•';
    color: var(--primary-medium);
    position: absolute;
    left: 0;
}

.read-more-btn {
    margin-top: var(--spacing-sm);
    padding: 8px 16px;
    font-size: 0.9rem;
}

/* ===== Value Proposition Section ===== */
.value-section {
    padding: var(--spacing-xl) 0;
    background-color: white;
}

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

.value-card {
    background-color: var(--neutral-bg);
    border-radius: var(--border-radius-md);
    padding: var(--spacing-md);
    box-shadow: var(--shadow-sm);
    transition: all var(--transition-medium);
}

.value-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-md);
}

.value-icon {
    font-size: 2rem;
    color: var(--primary-medium);
    margin-bottom: var(--spacing-sm);
}

/* ===== Team Section ===== */
.team-section {
    padding: var(--spacing-xl) 0;
    background-color: var(--neutral-bg);
}

.team-content {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-lg);
}

.team-description {
    flex: 1;
}

.certifications {
    flex: 1;
}

.certification-list {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-sm);
}

.certification-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    background-color: white;
    padding: var(--spacing-sm);
    border-radius: var(--border-radius-sm);
    box-shadow: var(--shadow-sm);
    transition: all var(--transition-fast);
}

.certification-item:hover {
    transform: translateX(5px);
    box-shadow: var(--shadow-md);
}

.certification-icon {
    color: var(--primary-medium);
    font-size: 1.2rem;
}

/* ===== Contact Section ===== */
.contact-section {
    padding: var(--spacing-xl) 0;
    background-color: white;
}

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

.contact-info {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-md);
}

.contact-card {
    background-color: var(--neutral-bg);
    border-radius: var(--border-radius-md);
    padding: var(--spacing-md);
    box-shadow: var(--shadow-sm);
    text-align: center;
    transition: all var(--transition-medium);
}

.contact-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-md);
}

.contact-icon {
    font-size: 2rem;
    color: var(--primary-medium);
    margin-bottom: var(--spacing-sm);
}

.meeting-request {
    background-color: var(--neutral-bg);
    border-radius: var(--border-radius-md);
    padding: var(--spacing-md);
    box-shadow: var(--shadow-sm);
    text-align: center;
}

.human-verification {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.7);
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 999;
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-medium);
}

.human-verification.active {
    opacity: 1;
    visibility: visible;
}

.verification-content {
    background-color: white;
    border-radius: var(--border-radius-md);
    padding: var(--spacing-md);
    width: 90%;
    max-width: 400px;
    box-shadow: var(--shadow-lg);
}

.verification-challenge {
    margin: var(--spacing-md) 0;
}

#captchaQuestion {
    font-size: 1.2rem;
    margin-bottom: var(--spacing-sm);
}

#captchaAnswer {
    width: 100%;
    padding: 10px;
    margin-bottom: var(--spacing-sm);
    border: 1px solid var(--neutral-light);
    border-radius: var(--border-radius-sm);
}

.verification-result {
    margin-top: var(--spacing-sm);
    font-weight: 600;
}

.verification-result.success {
    color: var(--accent-success);
}

.verification-result.error {
    color: var(--accent-danger);
}

.contact-form-container {
    background-color: var(--neutral-bg);
    border-radius: var(--border-radius-md);
    padding: var(--spacing-md);
    box-shadow: var(--shadow-sm);
}

.contact-form {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-sm);
}

.form-group {
    position: relative;
}

.form-group.full-width {
    grid-column: 1 / -1;
}

.form-group label {
    display: block;
    margin-bottom: 5px;
    font-weight: 600;
    color: var(--neutral-dark);
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 10px;
    border: 1px solid var(--neutral-light);
    border-radius: var(--border-radius-sm);
    transition: border-color var(--transition-fast);
}

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

.form-status {
    margin-top: var(--spacing-sm);
    padding: var(--spacing-sm);
    border-radius: var(--border-radius-sm);
    text-align: center;
    font-weight: 600;
    display: none;
}

.form-status.success {
    display: block;
    background-color: rgba(40, 167, 69, 0.1);
    color: var(--accent-success);
}

.form-status.error {
    display: block;
    background-color: rgba(220, 53, 69, 0.1);
    color: var(--accent-danger);
}

/* ===== Footer ===== */
.footer {
    background-color: var(--secondary-dark);
    color: white;
    padding: var(--spacing-lg) 0 var(--spacing-sm);
}

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

.footer-logo img {
    height: 60px;
    margin-bottom: var(--spacing-sm);
}

.footer-logo p {
    color: #ccc;
}

.footer h4 {
    color: white;
    margin-bottom: var(--spacing-sm);
    position: relative;
    padding-bottom: var(--spacing-xs);
}

.footer h4::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 30px;
    height: 2px;
    background-color: var(--primary-light);
}

.footer ul li {
    margin-bottom: var(--spacing-xs);
}

.footer a {
    color: #ccc;
    transition: color var(--transition-fast);
}

.footer a:hover {
    color: white;
}

.footer-contact p {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    margin-bottom: var(--spacing-xs);
}

.social-links {
    display: flex;
    gap: var(--spacing-sm);
    margin-top: var(--spacing-sm);
}

.social-links a {
    display: flex;
    justify-content: center;
    align-items: center;
    width: 36px;
    height: 36px;
    border-radius: 50%;
    background-color: rgba(255, 255, 255, 0.1);
    transition: all var(--transition-fast);
}

.social-links a:hover {
    background-color: var(--primary-medium);
    transform: translateY(-3px);
}

.footer-bottom {
    text-align: center;
    padding-top: var(--spacing-md);
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-bottom p {
    color: #ccc;
    font-size: 0.9rem;
}

/* ===== Animations ===== */
.animate-fade-in {
    opacity: 0;
    transform: translateY(20px);
    animation: fadeIn 0.8s ease forwards;
}

.delay-1 {
    animation-delay: 0.2s;
}

.delay-2 {
    animation-delay: 0.4s;
}

.animate-slide-in {
    opacity: 0;
    transform: translateX(50px);
    animation: slideIn 0.8s ease forwards;
    animation-delay: 0.6s;
}

@keyframes fadeIn {
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes slideIn {
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

/* ===== Media Queries ===== */
@media (min-width: 768px) {
    h1 {
        font-size: 2.5rem;
    }
    
    h2 {
        font-size: 2rem;
    }
    
    h3 {
        font-size: 1.5rem;
    }
    
    .container {
        width: 85%;
    }
    
    .hero-section {
        padding: 150px 0 var(--spacing-xl);
    }
    
    .about-content, 
    .team-content {
        flex-direction: row;
    }
    
    .approach-content,
    .services-grid,
    .value-grid,
    .certification-list,
    .contact-info {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .contact-form {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .footer-content {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (min-width: 992px) {
    h1 {
        font-size: 3rem;
    }
    
    .container {
        width: 80%;
    }
    
    .mobile-menu-toggle {
        display: none;
    }
    
    .nav-menu {
        display: block;
    }
    
    .hero-section {
        padding: 180px 0 var(--spacing-xl);
    }
    
    .hero-content {
        margin-bottom: 0;
    }
    
    .container > .hero-content + .hero-image {
        display: flex;
        align-items: center;
        justify-content: flex-end;
    }
    
    .container > .hero-content,
    .container > .hero-image {
        max-width: 50%;
    }
    
    .hero-section .container {
        display: flex;
        align-items: center;
        justify-content: space-between;
    }
    
    .services-grid {
        grid-template-columns: repeat(3, 1fr);
    }
    
    .approach-content,
    .value-grid {
        grid-template-columns: repeat(3, 1fr);
    }
    
    .contact-info {
        grid-template-columns: repeat(3, 1fr);
    }
    
    .footer-content {
        grid-template-columns: repeat(4, 1fr);
    }
}