/*
 * QUOTIDIAN PARTICLE - PROFESSIONAL B2B WEBSITE
 * Design Standard: Matching Blend B2B, Wholegrain Digital, Futerra
 * Version: 2.0 Professional
 * Updated: January 31, 2026
 * WCAG AA Compliant - All text readable with proper contrast
 */

:root {
    /* Brand Colors - Purple Gradient from Business Card */
    --primary-purple: #6B4E9B;
    --secondary-purple: #9B7BC4;
    --light-purple: #C5A8D9;
    --dark-purple: #4A3470;
    --accent-purple: #8B6FB4;
    --gradient-start: #3D2E5C;
    --gradient-end: #9B7BC4;

    /* Supporting Colors */
    --secondary-teal: #006666;
    --light-teal: #E6F3F3;

    /* Neutral Palette */
    --off-white: #FAFAFA;
    --light-gray: #F5F5F5;
    --mid-gray: #E0E0E0;
    --charcoal: #2B2B2B;
    --white: #FFFFFF;

    /* Text Colors - WCAG AA Compliant */
    --text-dark: #2B2B2B;
    --text-medium: #4A4A4A;
    --text-light: #FFFFFF;
    --text-muted: #666666;

    /* Borders & Shadows */
    --border-light: rgba(0, 0, 0, 0.08);
    --border-medium: rgba(0, 0, 0, 0.12);
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.06);
    --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 8px 30px rgba(0, 0, 0, 0.15);
    --shadow-purple: 0 6px 20px rgba(107, 78, 155, 0.25);

    /* Spacing System */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 2rem;
    --spacing-lg: 4rem;
    --spacing-xl: 6rem;

    /* Typography */
    --font-body: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    --font-heading: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;

    /* Transitions */
    --transition-fast: 0.2s ease;
    --transition-normal: 0.3s ease;
    --transition-slow: 0.5s ease;
}

/* ================================
   BASE STYLES
   ================================ */

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

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

body {
    font-family: var(--font-body);
    color: var(--text-dark);
    line-height: 1.7;
    background: var(--off-white);
    font-size: 1rem;
    -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;
    margin-bottom: var(--spacing-sm);
    color: var(--text-dark);
}

h1 {
    font-size: 3.5rem;
    letter-spacing: -0.02em;
}

h2 {
    font-size: 2.5rem;
    letter-spacing: -0.01em;
}

h3 {
    font-size: 1.75rem;
}

h4 {
    font-size: 1.25rem;
    font-weight: 600;
}

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

a {
    color: var(--primary-purple);
    text-decoration: none;
    transition: all var(--transition-normal);
}

a:hover {
    color: var(--secondary-purple);
}

ul {
    line-height: 1.8;
}

ul li {
    color: var(--text-dark);
}

/* ================================
   LAYOUT CONTAINERS
   ================================ */

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

.container-wide {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

/* ================================
   NAVIGATION
   ================================ */

.navbar {
    background: var(--white);
    box-shadow: var(--shadow-md);
    position: sticky;
    top: 0;
    z-index: 1000;
    padding: var(--spacing-sm) 0;
    border-bottom: 1px solid var(--border-light);
}

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

.navbar-logo {
    display: flex;
    align-items: center;
    gap: 1rem;
}

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

.navbar-logo-text {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary-purple);
    line-height: 1;
}

.nav-links {
    display: flex;
    list-style: none;
    gap: var(--spacing-md);
    align-items: center;
}

.nav-links a {
    color: var(--text-dark);
    font-weight: 500;
    font-size: 1rem;
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: 8px;
    transition: all var(--transition-normal);
}

.nav-links a:hover,
.nav-links a.active {
    background: var(--light-gray);
    color: var(--primary-purple);
}

.nav-cta {
    background: var(--secondary-purple) !important;
    color: var(--white) !important;
    padding: var(--spacing-xs) var(--spacing-md) !important;
    font-weight: 600 !important;
    border-radius: 8px;
    box-shadow: var(--shadow-sm);
}

.nav-cta:hover {
    background: var(--primary-purple) !important;
    color: var(--white) !important;
    transform: translateY(-2px);
    box-shadow: var(--shadow-purple);
}

/* ================================
   HERO SECTION
   ================================ */

.hero {
    background: linear-gradient(135deg, var(--gradient-start) 0%, var(--gradient-end) 100%);
    color: var(--white);
    padding: var(--spacing-xl) 0;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('data:image/svg+xml,<svg width="100" height="100" xmlns="http://www.w3.org/2000/svg"><circle cx="50" cy="50" r="1" fill="rgba(255,255,255,0.1)"/></svg>');
    background-size: 50px 50px;
    opacity: 0.3;
}

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

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

.hero-subtitle {
    font-size: 1.25rem;
    max-width: 700px;
    margin: 0 auto var(--spacing-md);
    color: var(--white);
    opacity: 0.95;
    line-height: 1.6;
}

/* ================================
   BUTTONS
   ================================ */

.btn {
    display: inline-block;
    padding: 1rem 2rem;
    font-weight: 600;
    font-size: 1.1rem;
    border-radius: 8px;
    transition: all var(--transition-normal);
    border: none;
    cursor: pointer;
    text-align: center;
    box-shadow: var(--shadow-sm);
}

.btn-primary {
    background: var(--secondary-purple);
    color: var(--white);
}

.btn-primary:hover {
    background: var(--primary-purple);
    transform: translateY(-2px);
    box-shadow: var(--shadow-purple);
}

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

.btn-secondary:hover {
    background: var(--white);
    color: var(--primary-purple);
}

.btn-large {
    padding: 1.25rem 3rem;
    font-size: 1.2rem;
}

/* ================================
   STATS SECTION
   ================================ */

.stats-section {
    background: var(--white);
    padding: var(--spacing-lg) 0;
    border-bottom: 1px solid var(--border-light);
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-lg);
    text-align: center;
}

.stat-item {
    padding: var(--spacing-md);
}

.stat-number {
    font-size: 3rem;
    font-weight: 700;
    color: var(--primary-purple);
    margin-bottom: var(--spacing-sm);
    line-height: 1;
}

.stat-label {
    font-size: 1rem;
    color: var(--text-dark);
}

/* ================================
   SECTIONS
   ================================ */

section {
    padding: var(--spacing-xl) 0;
}

.section-light {
    background: var(--white);
}

.section-gray {
    background: var(--light-gray);
}

.section-accent {
    background: #F5F0FA;
}

.section-dark {
    background: linear-gradient(135deg, var(--gradient-start) 0%, var(--gradient-end) 100%);
    color: var(--white);
}

.section-dark h2,
.section-dark h3,
.section-dark h4 {
    color: var(--white);
}

.section-dark p,
.section-dark li {
    color: var(--white);
}

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

.section-dark .section-heading {
    color: var(--white);
}

.section-intro {
    text-align: center;
    max-width: 800px;
    margin: 0 auto var(--spacing-lg);
    font-size: 1.15rem;
    color: var(--text-dark);
    line-height: 1.7;
}

.section-dark .section-intro {
    color: var(--white);
}

/* ================================
   GRID LAYOUTS
   ================================ */

.grid-2 {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-lg);
}

.grid-3 {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--spacing-md);
}

/* ================================
   CARDS - PROFESSIONAL B2B STANDARD
   ================================ */

.card {
    background: var(--white);
    padding: var(--spacing-md);
    border-radius: 12px;
    box-shadow: var(--shadow-md);
    transition: all var(--transition-normal);
    height: 100%;
    border: 1px solid var(--border-light);
}

.card:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-lg);
}

.card h3 {
    color: var(--primary-purple);
    margin-bottom: var(--spacing-sm);
    font-size: 1.5rem;
}

.card h4 {
    color: var(--text-dark);
    margin-bottom: var(--spacing-sm);
}

.card p {
    color: var(--text-dark);
    line-height: 1.7;
    margin-bottom: 0;
}

.card ul {
    margin-left: var(--spacing-md);
    color: var(--text-dark);
}

.card li {
    color: var(--text-dark);
    margin-bottom: var(--spacing-xs);
}

/* Dark Cards for Dark Sections */
.card-dark {
    background: rgba(255, 255, 255, 0.12);
    padding: var(--spacing-md);
    border-radius: 12px;
    border: 1px solid rgba(255, 255, 255, 0.2);
    transition: all var(--transition-normal);
    backdrop-filter: blur(10px);
}

.card-dark:hover {
    background: rgba(255, 255, 255, 0.18);
    transform: translateY(-4px);
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.3);
}

.card-dark h3 {
    color: var(--white);
    margin-bottom: var(--spacing-sm);
}

.card-dark p {
    color: var(--white);
}

/* ================================
   SERVICE CARDS - ENHANCED
   ================================ */

.service-highlight {
    position: relative;
    padding: 2.5rem;
    background: var(--white);
    border-left: 5px solid var(--primary-purple);
    min-height: 240px;
    display: flex;
    flex-direction: column;
    box-shadow: var(--shadow-md);
    border-radius: 12px;
}

.service-highlight:hover {
    border-left-width: 7px;
    transform: translateY(-6px);
    box-shadow: var(--shadow-purple);
}

.service-number {
    font-size: 4rem;
    font-weight: 700;
    color: var(--primary-purple);
    opacity: 0.12;
    line-height: 1;
    margin-bottom: -1.5rem;
}

.service-highlight h3 {
    font-size: 1.5rem;
    margin-bottom: 1rem;
    color: var(--text-dark);
}

.service-highlight p {
    flex-grow: 1;
    margin-bottom: 1.5rem;
    color: var(--text-dark);
    line-height: 1.7;
}

.link-arrow {
    color: var(--primary-purple);
    font-weight: 600;
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    transition: all var(--transition-normal);
}

.link-arrow:hover {
    gap: 1rem;
    color: var(--secondary-purple);
}

/* ================================
   SERVICE DETAIL PAGES
   ================================ */

.service-detail {
    max-width: 900px;
    margin: 0 auto;
}

.service-detail-header {
    text-align: center;
    margin-bottom: 3rem;
}

.service-badge {
    display: inline-block;
    padding: 0.5rem 1.5rem;
    background: var(--light-purple);
    color: var(--white);
    border-radius: 50px;
    font-size: 0.875rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: 1rem;
}

.lead-text {
    font-size: 1.25rem;
    line-height: 1.7;
    color: var(--text-dark);
    margin-top: 1rem;
}

/* Feature Boxes */
.feature-box {
    background: var(--white);
    padding: 2rem;
    border-radius: 12px;
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--border-light);
}

.feature-box h4 {
    color: var(--primary-purple);
    margin-bottom: 1.5rem;
    font-size: 1.25rem;
}

.feature-box-alt {
    background: var(--white);
    padding: 2rem;
    border: 2px solid var(--border-medium);
    border-radius: 12px;
    transition: all var(--transition-normal);
}

.feature-box-alt:hover {
    border-color: var(--primary-purple);
    box-shadow: var(--shadow-md);
}

.feature-list {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.feature-item {
    font-size: 1rem;
    line-height: 1.6;
    color: var(--text-dark);
    padding-left: 0.5rem;
}

/* ================================
   PROCESS STEPS
   ================================ */

.process-steps {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 2rem;
    margin-top: var(--spacing-md);
}

.step-item {
    text-align: center;
    padding: 1.5rem;
}

.step-number {
    width: 70px;
    height: 70px;
    background: linear-gradient(135deg, var(--gradient-start), var(--gradient-end));
    color: var(--white);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
    font-weight: 700;
    margin: 0 auto 1rem;
    box-shadow: var(--shadow-purple);
}

.step-item h4 {
    color: var(--text-dark);
    margin-bottom: 0.75rem;
    font-size: 1.125rem;
}

.step-item p {
    font-size: 0.95rem;
    color: var(--text-medium);
    line-height: 1.5;
}

/* ================================
   GRADING SYSTEM
   ================================ */

.grading-system {
    padding: 2rem 0;
}

.grade-card {
    background: var(--white);
    padding: 2rem;
    border-radius: 12px;
    text-align: center;
    border: 3px solid;
    transition: all var(--transition-normal);
    box-shadow: var(--shadow-sm);
}

.grade-card.grade-a { border-color: #2ECC71; }
.grade-card.grade-b { border-color: #3498DB; }
.grade-card.grade-c { border-color: #F39C12; }
.grade-card.grade-d { border-color: #E74C3C; }

.grade-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-md);
}

.grade-letter {
    width: 80px;
    height: 80px;
    border: 3px solid;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2.5rem;
    font-weight: 700;
    margin: 0 auto 1rem;
}

.grade-card.grade-a .grade-letter { color: #2ECC71; border-color: #2ECC71; }
.grade-card.grade-b .grade-letter { color: #3498DB; border-color: #3498DB; }
.grade-card.grade-c .grade-letter { color: #F39C12; border-color: #F39C12; }
.grade-card.grade-d .grade-letter { color: #E74C3C; border-color: #E74C3C; }

.grade-card h4 {
    color: var(--text-dark);
    margin-bottom: 0.75rem;
}

.grade-card p {
    font-size: 0.95rem;
    color: var(--text-medium);
}

/* ================================
   ICON CARDS
   ================================ */

.icon-card {
    background: var(--white);
    padding: 2rem;
    border-radius: 12px;
    text-align: center;
    box-shadow: var(--shadow-sm);
    transition: all var(--transition-normal);
    border: 1px solid var(--border-light);
}

.icon-card:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-md);
}

.icon-card-icon {
    font-size: 3rem;
    margin-bottom: 1rem;
    line-height: 1;
}

.icon-card h4 {
    color: var(--primary-purple);
    margin-bottom: 1rem;
    font-size: 1.25rem;
}

.icon-card p {
    font-size: 0.95rem;
    color: var(--text-dark);
    line-height: 1.6;
}

/* ================================
   IMPACT SECTION
   ================================ */

.impact-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-lg);
    margin-top: var(--spacing-lg);
}

.impact-stat {
    text-align: center;
    padding: var(--spacing-md);
    background: rgba(255, 255, 255, 0.12);
    border-radius: 12px;
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.2);
}

.impact-number {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--light-purple);
    margin-bottom: var(--spacing-xs);
    line-height: 1;
}

.impact-label {
    font-size: 1rem;
    color: var(--white);
}

/* ================================
   CONFERENCE SECTION
   ================================ */

.conference-list {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: var(--spacing-md);
    margin-top: var(--spacing-lg);
}

.conference-item {
    background: var(--white);
    padding: 1.5rem 2rem;
    border-radius: 8px;
    border-left: 5px solid var(--primary-purple);
    box-shadow: var(--shadow-sm);
    transition: all var(--transition-normal);
    font-weight: 600;
}

.conference-item:hover {
    transform: translateX(10px);
    box-shadow: var(--shadow-purple);
    border-left-width: 7px;
}

.conference-item a {
    color: var(--text-dark);
    font-weight: 600;
    font-size: 1.1rem;
    display: block;
    text-decoration: none;
}

.conference-item a:hover {
    color: var(--primary-purple);
}

/* ================================
   CTA SECTION
   ================================ */

.cta-section {
    background: linear-gradient(135deg, var(--gradient-start) 0%, var(--gradient-end) 100%);
    color: var(--white);
    text-align: center;
    padding: var(--spacing-xl) 0;
}

.cta-section h2 {
    color: var(--white);
    margin-bottom: var(--spacing-md);
}

.cta-section p {
    font-size: 1.15rem;
    max-width: 700px;
    margin: 0 auto var(--spacing-lg);
    color: var(--white);
}

/* ================================
   CONTACT FORM
   ================================ */

.contact-form {
    max-width: 600px;
    margin: 0 auto;
    background: var(--white);
    padding: var(--spacing-lg);
    border-radius: 12px;
    box-shadow: var(--shadow-md);
}

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

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

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: var(--spacing-sm);
    border: 2px solid var(--border-medium);
    border-radius: 8px;
    font-family: var(--font-body);
    font-size: 1rem;
    transition: all var(--transition-normal);
    color: var(--text-dark);
    background: var(--white);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary-purple);
    box-shadow: 0 0 0 3px rgba(107, 78, 155, 0.1);
}

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

/* ================================
   FOOTER
   ================================ */

footer {
    background: var(--charcoal);
    color: var(--white);
    padding: var(--spacing-lg) 0 var(--spacing-md);
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-lg);
}

.footer-section h4 {
    color: var(--light-purple);
    margin-bottom: var(--spacing-sm);
}

.footer-section ul {
    list-style: none;
}

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

.footer-section a {
    color: rgba(255, 255, 255, 0.8);
    transition: all var(--transition-normal);
}

.footer-section a:hover {
    color: var(--light-purple);
}

.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding-top: var(--spacing-md);
    text-align: center;
    color: rgba(255, 255, 255, 0.7);
    font-size: 0.9rem;
}

/* ================================
   UTILITY CLASSES
   ================================ */

.text-center {
    text-align: center;
}

.mt-1 { margin-top: var(--spacing-sm); }
.mt-2 { margin-top: var(--spacing-md); }
.mt-3 { margin-top: var(--spacing-lg); }

.mb-1 { margin-bottom: var(--spacing-sm); }
.mb-2 { margin-bottom: var(--spacing-md); }
.mb-3 { margin-bottom: var(--spacing-lg); }

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

.highlight {
    background: var(--light-purple);
    color: var(--white);
    padding: 0.2em 0.4em;
    border-radius: 4px;
    font-weight: 600;
}

/* ================================
   RESPONSIVE DESIGN
   ================================ */

@media (max-width: 768px) {
    h1 { font-size: 2.5rem; }
    h2 { font-size: 2rem; }
    h3 { font-size: 1.5rem; }

    .navbar .container {
        flex-direction: column;
        gap: var(--spacing-sm);
    }

    .nav-links {
        flex-wrap: wrap;
        justify-content: center;
        gap: var(--spacing-sm);
    }

    .hero {
        padding: var(--spacing-lg) 0;
    }

    section {
        padding: var(--spacing-lg) 0;
    }

    .grid-2,
    .grid-3 {
        grid-template-columns: 1fr;
    }

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

    .process-steps {
        grid-template-columns: 1fr;
    }
}

/* ================================
   PRINT STYLES
   ================================ */

@media print {
    .navbar,
    .cta-section,
    footer {
        display: none;
    }

    body {
        background: white;
        color: black;
    }
}