/* ===================================
   ProcessFlow Innovations LLC
   Website Styles
   ================================== */

/* ===================================
   Color Palette & Variables
   ================================== */
:root {
    /* Color Palette */
    --color-primary-bg: #2a2a2a;        /* Deep Charcoal */
    --color-secondary-bg: #3f3f3f;      /* Warm Gray */
    --color-accent: #5a8a7a;            /* Muted Emerald */
    --color-accent-hover: #6b9d8a;      /* Lighter Emerald */
    --color-text-primary: #e8e8e8;      /* Soft White */
    --color-text-secondary: #b8b8b8;    /* Light Gray */
    --color-divider: #4a4a4a;           /* Subtle Gray */
    
    /* Typography */
    --font-heading: 'Playfair Display', serif;
    --font-body: 'Inter', sans-serif;
    
    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 2rem;
    --spacing-lg: 3rem;
    --spacing-xl: 4rem;
    --spacing-xxl: 6rem;
    
    /* Container */
    --container-max-width: 1200px;
    --container-padding: 2rem;
    
    /* Transitions */
    --transition-default: all 0.3s ease;
}

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

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

body {
    font-family: var(--font-body);
    font-weight: 400;
    line-height: 1.7;
    color: var(--color-text-primary);
    background-color: var(--color-primary-bg);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* ===================================
   Typography
   ================================== */
h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-heading);
    font-weight: 700;
    line-height: 1.2;
    color: var(--color-text-primary);
    margin-bottom: var(--spacing-md);
}

h1 {
    font-size: 3rem;
}

h2 {
    font-size: 2.5rem;
}

h3 {
    font-size: 1.75rem;
}

h4 {
    font-size: 1.5rem;
}

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

strong {
    color: var(--color-text-primary);
    font-weight: 600;
}

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

a:hover {
    color: var(--color-accent-hover);
}

ul, ol {
    margin-bottom: var(--spacing-sm);
}

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

/* ===================================
   Layout Components
   ================================== */
.container {
    max-width: var(--container-max-width);
    margin: 0 auto;
    padding: 0 var(--container-padding);
}

.section-divider {
    height: 1px;
    background-color: var(--color-divider);
    margin: var(--spacing-xl) 0;
}

/* ===================================
   Header
   ================================== */
.site-header {
    background-color: var(--color-primary-bg);
    padding: var(--spacing-md) 0;
    border-bottom: 1px solid var(--color-divider);
    position: sticky;
    top: 0;
    z-index: 1000;
}

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

.header-logo {
    height: 50px;
    width: auto;
}

.main-nav ul {
    display: flex;
    list-style: none;
    gap: var(--spacing-md);
    margin: 0;
}

.main-nav a {
    color: var(--color-text-secondary);
    font-weight: 500;
    font-size: 0.95rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    transition: var(--transition-default);
}

.main-nav a:hover,
.main-nav a.active {
    color: var(--color-accent);
}

.mobile-menu-toggle {
    display: none;
    flex-direction: column;
    background: none;
    border: none;
    cursor: pointer;
    padding: 0.5rem;
}

.mobile-menu-toggle span {
    width: 25px;
    height: 2px;
    background-color: var(--color-text-primary);
    margin: 3px 0;
    transition: var(--transition-default);
}

/* ===================================
   Hero Section
   ================================== */
.hero-section {
    padding: var(--spacing-xxl) 0;
    background-color: var(--color-primary-bg);
}

.hero-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-xl);
    align-items: center;
}

.hero-headline {
    font-size: 3rem;
    line-height: 1.2;
    margin-bottom: var(--spacing-md);
    color: var(--color-text-primary);
}

.hero-description {
    font-size: 1.2rem;
    line-height: 1.8;
    color: var(--color-text-secondary);
    margin-bottom: var(--spacing-lg);
}

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

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

.eof-logo-hero {
    max-width: 50%;
    height: auto;
}

.eof-logo-methodology {
    max-width: 37.5%;
}

/* ===================================
   Buttons
   ================================== */
.btn {
    display: inline-block;
    padding: 1rem 2rem;
    font-family: var(--font-body);
    font-weight: 600;
    font-size: 0.95rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    border: none;
    cursor: pointer;
    transition: var(--transition-default);
    text-align: center;
}

.btn-primary {
    background-color: var(--color-accent);
    color: var(--color-text-primary);
}

.btn-primary:hover {
    background-color: var(--color-accent-hover);
    transform: translateY(-2px);
}

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

.btn-secondary:hover {
    background-color: var(--color-accent);
    color: var(--color-text-primary);
}

/* ===================================
   Content Sections
   ================================== */
.content-section {
    padding: var(--spacing-xl) 0;
}

.section-title {
    text-align: center;
    margin-bottom: var(--spacing-lg);
    font-size: 2.5rem;
    color: var(--color-text-primary);
}

.section-intro {
    text-align: center;
    font-size: 1.1rem;
    color: var(--color-text-secondary);
    margin-bottom: var(--spacing-lg);
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
}

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

.content-block {
    max-width: 900px;
    margin: 0 auto;
}

.content-block.centered {
    text-align: center;
}

.content-text {
    font-size: 1.1rem;
    line-height: 1.8;
}

.content-text p {
    margin-bottom: var(--spacing-md);
}

/* ===================================
   Growth Friction Section
   ================================== */
.section-growth-friction {
    background-color: var(--color-secondary-bg);
}

/* ===================================
   Service Pillars
   ================================== */
.pillars-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-lg);
}

.pillar-card {
    background-color: var(--color-secondary-bg);
    padding: var(--spacing-lg);
    border-left: 4px solid var(--color-accent);
}

.pillar-title {
    font-size: 1.5rem;
    margin-bottom: var(--spacing-sm);
    color: var(--color-text-primary);
}

.pillar-description {
    color: var(--color-text-secondary);
    font-size: 1rem;
}

/* ===================================
   Training Programs Overview
   ================================== */
.section-training-overview {
    background-color: var(--color-secondary-bg);
}

.programs-list {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-lg);
}

.program-item {
    background-color: var(--color-primary-bg);
    padding: var(--spacing-md);
    border-left: 3px solid var(--color-accent);
}

.program-name {
    font-size: 1.25rem;
    color: var(--color-text-primary);
    margin-bottom: 0;
}

/* ===================================
   OEF Framework Section
   ================================== */
.section-eof-framework {
    background-color: var(--color-secondary-bg);
}

.eof-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-xl);
    align-items: center;
    margin-bottom: var(--spacing-lg);
}

.eof-description {
    font-size: 1.1rem;
    line-height: 1.8;
    color: var(--color-text-secondary);
}

.eof-diagram {
    display: flex;
    justify-content: center;
    align-items: center;
}

.framework-diagram {
    max-width: 100%;
    height: auto;
}

/* ===================================
   Principal-Led Section
   ================================== */
.section-principal {
    background-color: var(--color-primary-bg);
}

/* ===================================
   Page Hero (Interior Pages)
   ================================== */
.page-hero {
    background-color: var(--color-secondary-bg);
    padding: var(--spacing-xl) 0;
    text-align: center;
    border-bottom: 1px solid var(--color-divider);
}

.page-title {
    font-size: 3.5rem;
    margin-bottom: var(--spacing-sm);
}

.page-subtitle {
    font-size: 1.3rem;
    color: var(--color-accent);
    font-weight: 500;
}

/* ===================================
   Services Page
   ================================== */
.service-pillar {
    background-color: var(--color-primary-bg);
}

.service-header {
    margin-bottom: var(--spacing-lg);
}

.service-title {
    font-size: 2.5rem;
    text-align: center;
    color: var(--color-text-primary);
}

.service-block {
    margin-bottom: var(--spacing-lg);
    max-width: 900px;
    margin-left: auto;
    margin-right: auto;
}

.service-subtitle {
    font-size: 1.5rem;
    color: var(--color-accent);
    margin-bottom: var(--spacing-sm);
}

.service-content {
    font-size: 1.05rem;
    line-height: 1.8;
}

.service-list {
    list-style: none;
    padding-left: 0;
}

.service-list li {
    margin-bottom: var(--spacing-md);
    padding-left: var(--spacing-md);
    border-left: 3px solid var(--color-accent);
}

/* ===================================
   OEF Methodology Page
   ================================== */
.methodology-hero {
    padding: var(--spacing-xl) 0;
}

.methodology-section {
    max-width: 1000px;
    margin-left: auto;
    margin-right: auto;
}

.methodology-component,
.methodology-phase {
    margin-bottom: var(--spacing-xl);
    padding: var(--spacing-lg);
    background-color: var(--color-secondary-bg);
    border-left: 4px solid var(--color-accent);
}

.component-title,
.phase-title {
    font-size: 1.75rem;
    color: var(--color-text-primary);
    margin-bottom: var(--spacing-sm);
}

.component-content,
.phase-content {
    font-size: 1.05rem;
    line-height: 1.8;
}

.component-subtitle {
    font-size: 1.2rem;
    color: var(--color-accent);
    font-weight: 600;
    margin-top: var(--spacing-md);
    margin-bottom: var(--spacing-sm);
}

.component-closing {
    margin-top: var(--spacing-md);
    padding-top: var(--spacing-md);
    border-top: 1px solid var(--color-divider);
    font-size: 1.05rem;
    color: var(--color-text-primary);
    font-style: italic;
}

.phase-subtitle {
    font-size: 1.2rem;
    color: var(--color-accent);
    font-weight: 600;
    margin-top: var(--spacing-md);
    margin-bottom: var(--spacing-sm);
}

.phase-list {
    list-style: disc;
    padding-left: var(--spacing-md);
    margin-bottom: var(--spacing-md);
}

.phase-list li {
    color: var(--color-text-secondary);
    margin-bottom: var(--spacing-xs);
}

.component-list {
    list-style: disc;
    padding-left: var(--spacing-md);
    margin-top: var(--spacing-sm);
}

.component-list li {
    color: var(--color-text-secondary);
    margin-bottom: var(--spacing-xs);
}

.when-apply-content {
    max-width: 900px;
    margin: 0 auto;
    font-size: 1.05rem;
    line-height: 1.8;
}

.when-apply-list {
    list-style: none;
    padding-left: 0;
    margin: var(--spacing-lg) 0;
}

.when-apply-list li {
    margin-bottom: var(--spacing-md);
    padding-left: var(--spacing-md);
    border-left: 3px solid var(--color-accent);
}

.when-apply-closing {
    margin-top: var(--spacing-lg);
    font-size: 1.1rem;
    color: var(--color-text-primary);
}

.framework-diagram-section {
    background-color: var(--color-secondary-bg);
}

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

.framework-diagram-full {
    max-width: 100%;
    height: auto;
}

/* ===================================
   Training Page
   ================================== */
.training-program {
    max-width: 1000px;
    margin-left: auto;
    margin-right: auto;
}

.program-header {
    margin-bottom: var(--spacing-lg);
}

.program-title {
    font-size: 2.25rem;
    text-align: center;
    color: var(--color-text-primary);
    margin-bottom: var(--spacing-xs);
}

.program-duration {
    font-size: 1.1rem;
    text-align: center;
    color: var(--color-accent);
    font-weight: 500;
    margin-bottom: 0;
}

.program-block {
    margin-bottom: var(--spacing-lg);
    background-color: var(--color-secondary-bg);
    padding: var(--spacing-lg);
}

.program-subtitle {
    font-size: 1.5rem;
    color: var(--color-accent);
    margin-bottom: var(--spacing-sm);
}

.program-content {
    font-size: 1.05rem;
    line-height: 1.8;
}

.program-list {
    list-style: disc;
    padding-left: var(--spacing-md);
    margin-top: var(--spacing-sm);
}

.program-list li {
    color: var(--color-text-secondary);
    margin-bottom: var(--spacing-sm);
}

.program-architecture {
    background-color: var(--color-secondary-bg);
}

.architecture-content {
    max-width: 900px;
    margin: 0 auto;
    font-size: 1.05rem;
    line-height: 1.8;
}

.architecture-list {
    list-style: none;
    padding-left: 0;
    margin: var(--spacing-lg) 0;
}

.architecture-list li {
    margin-bottom: var(--spacing-md);
    padding-left: var(--spacing-md);
    border-left: 3px solid var(--color-accent);
}

.architecture-closing {
    margin-top: var(--spacing-lg);
    font-size: 1.1rem;
    color: var(--color-text-primary);
    font-style: italic;
}

/* ===================================
   About Page
   ================================== */
.about-content {
    max-width: 1000px;
    margin: 0 auto;
}

.principal-intro {
    font-size: 1.15rem;
    line-height: 1.8;
    text-align: center;
    max-width: 900px;
    margin: 0 auto;
}

.about-section {
    max-width: 1000px;
    margin-left: auto;
    margin-right: auto;
}

.about-text {
    font-size: 1.05rem;
    line-height: 1.8;
    max-width: 900px;
    margin: 0 auto;
}

.about-text p {
    margin-bottom: var(--spacing-md);
}

.about-text ul {
    margin: var(--spacing-md) 0;
    padding-left: var(--spacing-lg);
}

.about-text ul li {
    margin-bottom: var(--spacing-sm);
}

.differentiation-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-lg);
    margin-top: var(--spacing-lg);
}

.diff-item {
    background-color: var(--color-secondary-bg);
    padding: var(--spacing-lg);
    border-left: 4px solid var(--color-accent);
}

.diff-title {
    font-size: 1.5rem;
    color: var(--color-text-primary);
    margin-bottom: var(--spacing-sm);
}

.expertise-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-md);
    margin-top: var(--spacing-lg);
}

.expertise-item {
    background-color: var(--color-secondary-bg);
    padding: var(--spacing-md);
    border-left: 3px solid var(--color-accent);
}

.expertise-title {
    font-size: 1.25rem;
    color: var(--color-text-primary);
    margin-bottom: var(--spacing-xs);
}

.expertise-item p {
    font-size: 0.95rem;
    color: var(--color-text-secondary);
}

.industries-list {
    list-style: none;
    padding: 0;
    margin: var(--spacing-md) 0;
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-sm);
}

.industries-list li {
    padding-left: var(--spacing-md);
    border-left: 3px solid var(--color-accent);
    color: var(--color-text-secondary);
}

.engagement-modes {
    list-style: none;
    padding: 0;
    margin: var(--spacing-md) 0;
}

.engagement-modes li {
    margin-bottom: var(--spacing-md);
    padding-left: var(--spacing-md);
    border-left: 3px solid var(--color-accent);
}

/* ===================================
   Contact Page
   ================================== */
.engagement-philosophy {
    max-width: 900px;
    margin-left: auto;
    margin-right: auto;
}

.philosophy-content {
    font-size: 1.1rem;
    line-height: 1.8;
}

.philosophy-content p {
    margin-bottom: var(--spacing-md);
}

.contact-form-section {
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
}

.form-intro {
    text-align: center;
    margin-bottom: var(--spacing-lg);
    font-size: 1.05rem;
    color: var(--color-text-secondary);
}

.direct-contact {
    margin-top: var(--spacing-md);
    font-size: 1rem;
    color: var(--color-text-secondary);
}

.direct-contact strong {
    color: var(--color-accent);
    font-size: 1.1rem;
}

.contact-form {
    background-color: var(--color-secondary-bg);
    padding: var(--spacing-lg);
}

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

.form-group {
    margin-bottom: var(--spacing-md);
}

.form-group label {
    display: block;
    margin-bottom: var(--spacing-xs);
    color: var(--color-text-primary);
    font-weight: 500;
}

.required {
    color: var(--color-accent);
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 0.75rem;
    background-color: var(--color-primary-bg);
    border: 1px solid var(--color-divider);
    color: var(--color-text-primary);
    font-family: var(--font-body);
    font-size: 1rem;
    transition: var(--transition-default);
}

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

.form-group textarea {
    resize: vertical;
}

.btn-submit {
    width: 100%;
}

.form-message {
    margin-top: var(--spacing-md);
    padding: var(--spacing-sm);
    text-align: center;
    font-weight: 500;
    display: none;
}

.form-message.success {
    display: block;
    background-color: var(--color-accent);
    color: var(--color-text-primary);
}

.form-message.error {
    display: block;
    background-color: #8a5a5a;
    color: var(--color-text-primary);
}

/* FAQ Section */
.faq-section {
    max-width: 900px;
    margin-left: auto;
    margin-right: auto;
}

.faq-item {
    margin-bottom: var(--spacing-lg);
    padding: var(--spacing-lg);
    background-color: var(--color-secondary-bg);
    border-left: 4px solid var(--color-accent);
}

.faq-question {
    font-size: 1.5rem;
    color: var(--color-text-primary);
    margin-bottom: var(--spacing-sm);
}

.faq-answer {
    font-size: 1.05rem;
    line-height: 1.8;
}

/* ===================================
   CTA Section
   ================================== */
.cta-section {
    background-color: var(--color-secondary-bg);
    text-align: center;
}

.cta-content {
    max-width: 800px;
    margin: 0 auto;
}

.cta-title {
    font-size: 2.5rem;
    margin-bottom: var(--spacing-sm);
}

.cta-description {
    font-size: 1.2rem;
    color: var(--color-text-secondary);
    margin-bottom: var(--spacing-lg);
}

/* ===================================
   Footer
   ================================== */
.site-footer {
    background-color: var(--color-primary-bg);
    padding: var(--spacing-xl) 0 var(--spacing-md) 0;
    border-top: 1px solid var(--color-divider);
    margin-top: var(--spacing-xxl);
}

.footer-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--spacing-lg);
}

.footer-logo-img {
    height: 40px;
    width: auto;
}

.footer-nav ul {
    display: flex;
    list-style: none;
    gap: var(--spacing-md);
    margin: 0;
}

.footer-nav a {
    color: var(--color-text-secondary);
    font-size: 0.9rem;
    transition: var(--transition-default);
}

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

.footer-bottom {
    text-align: center;
    padding-top: var(--spacing-md);
    border-top: 1px solid var(--color-divider);
}

.footer-bottom p {
    color: var(--color-text-secondary);
    font-size: 0.9rem;
    margin: 0;
}

/* ===================================
   Responsive Design
   ================================== */

/* Tablet */
@media (max-width: 992px) {
    :root {
        --container-padding: 1.5rem;
    }
    
    h1 {
        font-size: 2.5rem;
    }
    
    h2 {
        font-size: 2rem;
    }
    
    .hero-grid,
    .eof-grid {
        grid-template-columns: 1fr;
        gap: var(--spacing-lg);
    }
    
    .pillars-grid {
        grid-template-columns: 1fr;
    }
    
    .programs-list {
        grid-template-columns: 1fr;
    }
    
    .differentiation-grid,
    .expertise-grid,
    .industries-list {
        grid-template-columns: 1fr;
    }
    
    .form-row {
        grid-template-columns: 1fr;
    }
    
    .footer-content {
        flex-direction: column;
        gap: var(--spacing-md);
        text-align: center;
    }
    
    .footer-nav ul {
        flex-wrap: wrap;
        justify-content: center;
    }
}

/* Mobile */
@media (max-width: 768px) {
    :root {
        --container-padding: 1rem;
        --spacing-xl: 3rem;
        --spacing-xxl: 4rem;
    }
    
    h1 {
        font-size: 2rem;
    }
    
    h2 {
        font-size: 1.75rem;
    }
    
    .hero-headline {
        font-size: 2rem;
    }
    
    .hero-description {
        font-size: 1.05rem;
    }
    
    .hero-buttons {
        flex-direction: column;
    }
    
    .btn {
        width: 100%;
    }
    
    .main-nav {
        position: fixed;
        top: 88px;
        left: -100%;
        width: 100%;
        background-color: var(--color-primary-bg);
        border-top: 1px solid var(--color-divider);
        transition: var(--transition-default);
        z-index: 999;
    }
    
    .main-nav.active {
        left: 0;
    }
    
    .main-nav ul {
        flex-direction: column;
        padding: var(--spacing-md);
        gap: 0;
    }
    
    .main-nav li {
        border-bottom: 1px solid var(--color-divider);
    }
    
    .main-nav a {
        display: block;
        padding: var(--spacing-sm) 0;
    }
    
    .mobile-menu-toggle {
        display: flex;
    }
    
    .mobile-menu-toggle.active span:nth-child(1) {
        transform: rotate(45deg) translate(5px, 5px);
    }
    
    .mobile-menu-toggle.active span:nth-child(2) {
        opacity: 0;
    }
    
    .mobile-menu-toggle.active span:nth-child(3) {
        transform: rotate(-45deg) translate(7px, -7px);
    }
    
    .page-title {
        font-size: 2.5rem;
    }
    
    .section-title {
        font-size: 2rem;
    }
}