/* =================================================================
   CHANNEL COMMUNICATIONS - AI-POWERED v1.0
   Clean, Professional Design Optimized for Desktop & Mobile
   ================================================================= */

/* ===========================
   CSS VARIABLES
   =========================== */
:root {
    /* Verizon Brand Colors */
    --verizon-red: #F50A23;
    --neon-yellow: #F5FF1E;
    --verizon-stone: #F3EDE0;
    --black: #000000;
    --white: #FFFFFF;

    /* Legacy color mappings for gradients */
    --primary-blue: #F50A23;
    --accent-teal: #F5FF1E;
    --purple: #F50A23;
    --pink-coral: #F50A23;
    --turquoise: #F5FF1E;
    --dark-purple: #F50A23;

    /* Neutral Colors */
    --light-gray: #F3EDE0;
    --medium-gray: #E5DDD0;
    --dark-gray: #000000;

    /* Typography */
    --font-heading: Arial, sans-serif;
    --font-body: 'Raleway', sans-serif;

    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 2rem;
    --spacing-lg: 3rem;
    --spacing-xl: 4rem;

    /* Border Radius */
    --radius-sm: 8px;
    --radius-md: 16px;
    --radius-lg: 24px;

    /* Shadows */
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.08);
    --shadow-md: 0 4px 20px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 8px 30px rgba(0, 0, 0, 0.15);
}

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

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

body {
    font-family: var(--font-body);
    line-height: 1.7;
    color: var(--dark-gray);
    background: var(--white);
    overflow-x: hidden;
}

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

/* ===========================
   HERO SECTION (HIGH-ENERGY)
   =========================== */
.hero {
    background: linear-gradient(135deg, var(--verizon-red) 0%, var(--verizon-red) 70%, var(--neon-yellow) 100%);
    color: var(--white);
    padding: clamp(4rem, 10vw, 8rem) var(--spacing-md);
    text-align: center;
    position: relative;
}

.hero-title {
    font-family: var(--font-heading);
    font-size: clamp(2rem, 5vw, 3.5rem);
    font-weight: 700;
    margin-bottom: var(--spacing-md);
    line-height: 1.2;
}

.hero-subtitle {
    font-family: var(--font-heading);
    font-size: clamp(1.25rem, 3vw, 2rem);
    font-weight: 400;
    margin-bottom: var(--spacing-md);
    color: var(--white);
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.3);
}

.hero-tagline {
    font-size: clamp(1rem, 2vw, 1.25rem);
    opacity: 0.9;
    max-width: 600px;
    margin: 0 auto;
}

/* ===========================
   SECTIONS
   =========================== */
.section {
    padding: clamp(3rem, 8vw, 6rem) 0;
    background: var(--white);
    color: var(--black);
}

/* CALM SECTIONS - Stone background with black text and red accents */
.section-alt {
    background: var(--verizon-stone);
    color: var(--black);
}

.section-title {
    text-align: center;
    margin-bottom: clamp(2rem, 5vw, 4rem);
    position: relative;
}

.section-title span {
    font-family: var(--font-heading);
    font-size: clamp(1.75rem, 4vw, 2.5rem);
    font-weight: 700;
    color: var(--verizon-red);
    display: inline-block;
}

.title-underline {
    width: 80px;
    height: 4px;
    background: var(--verizon-red);
    margin: var(--spacing-sm) auto 0;
    border-radius: 2px;
}

/* ===========================
   CONTENT CARDS
   =========================== */
.content-card {
    background: var(--white);
    padding: var(--spacing-lg);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-md);
    margin-bottom: var(--spacing-md);
    text-align: center;
}

.lead-text {
    font-size: clamp(1.125rem, 2.5vw, 1.35rem);
    font-weight: 500;
    color: var(--verizon-red);
    margin-bottom: var(--spacing-md);
    line-height: 1.6;
}

.highlight-text {
    font-size: clamp(1rem, 2vw, 1.25rem);
    font-weight: 600;
    color: var(--verizon-red);
    text-align: center;
    line-height: 1.6;
}

/* ===========================
   FEATURE GRID
   =========================== */
.feature-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--spacing-md);
}

.feature-card {
    background: var(--white);
    padding: var(--spacing-lg);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-md);
    text-align: center;
}

.feature-icon {
    width: 64px;
    height: 64px;
    background: var(--verizon-red);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto var(--spacing-md);
}

.feature-icon svg {
    color: var(--white);
}

.feature-card h3 {
    font-family: var(--font-heading);
    font-size: clamp(1.125rem, 2vw, 1.35rem);
    color: var(--verizon-red);
    margin-bottom: var(--spacing-sm);
}

.feature-card p {
    color: var(--dark-gray);
    line-height: 1.6;
}

/* ===========================
   FRAMEWORK CARDS
   =========================== */
.framework-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-lg);
}

.framework-card {
    background: var(--white);
    padding: var(--spacing-lg);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-md);
    border-left: 4px solid var(--verizon-red);
}

.framework-card h3 {
    font-family: var(--font-heading);
    font-size: clamp(1.35rem, 2.5vw, 1.75rem);
    color: var(--verizon-red);
    margin-bottom: var(--spacing-md);
}

.framework-list {
    list-style: none;
}

.framework-list li {
    padding: var(--spacing-sm) 0;
    padding-left: 1.5rem;
    position: relative;
    font-size: clamp(1rem, 2vw, 1.125rem);
}

.framework-list li::before {
    content: "→";
    position: absolute;
    left: 0;
    color: var(--verizon-red);
    font-weight: bold;
}

.bridge-flow {
    font-size: clamp(1rem, 2vw, 1.125rem);
    line-height: 1.8;
    color: var(--dark-gray);
}

/* ===========================
   TWO COLUMN LAYOUT
   =========================== */
.two-column {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-lg);
}

.column-card {
    background: var(--white);
    padding: var(--spacing-lg);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-md);
}

.column-card h3 {
    font-family: var(--font-heading);
    font-size: clamp(1.25rem, 2.5vw, 1.5rem);
    color: var(--verizon-red);
    margin-bottom: var(--spacing-md);
}

.column-card ul {
    list-style: none;
}

.column-card ul li {
    padding: var(--spacing-xs) 0;
    padding-left: 1.5rem;
    position: relative;
}

.column-card ul li::before {
    content: "•";
    position: absolute;
    left: 0;
    color: var(--verizon-red);
    font-weight: bold;
    font-size: 1.5rem;
}

/* ===========================
   TOOLS GRID
   =========================== */
.tools-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-lg);
}

.tool-card {
    background: var(--white);
    padding: var(--spacing-lg);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-md);
    border-top: 4px solid var(--verizon-red);
}

.tool-header h3 {
    font-family: var(--font-heading);
    font-size: clamp(1.25rem, 2.5vw, 1.5rem);
    color: var(--verizon-red);
    margin-bottom: var(--spacing-md);
}

.tool-card ul {
    list-style: none;
}

.tool-card ul li {
    padding: var(--spacing-sm) 0;
    padding-left: 1.5rem;
    position: relative;
}

.tool-card ul li::before {
    content: "✓";
    position: absolute;
    left: 0;
    color: var(--verizon-red);
    font-weight: bold;
}

/* ===========================
   GEMS GRID
   =========================== */
.gems-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: var(--spacing-md);
}

.gem-card {
    background: var(--black);
    color: var(--white);
    padding: var(--spacing-lg);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-md);
    text-align: center;
    border: 2px solid var(--neon-yellow);
}

.gem-card-full {
    grid-column: 1 / -1;
}

.gem-card h3 {
    font-family: var(--font-heading);
    font-size: clamp(1.125rem, 2vw, 1.35rem);
    margin-bottom: var(--spacing-sm);
    font-weight: 700;
    color: var(--neon-yellow);
}

.gem-card p {
    line-height: 1.6;
    font-weight: 500;
}

/* ===========================
   FLOW DIAGRAM
   =========================== */
.flow-diagram {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-md);
    padding: var(--spacing-lg);
    background: var(--white);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-md);
}

.flow-step {
    text-align: center;
    max-width: 180px;
}

.flow-number {
    width: 48px;
    height: 48px;
    background: var(--verizon-red);
    color: var(--white);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 1.25rem;
    margin: 0 auto var(--spacing-sm);
}

.flow-step p {
    font-size: clamp(0.875rem, 1.5vw, 1rem);
    color: var(--dark-gray);
    line-height: 1.4;
}

.flow-arrow {
    color: var(--verizon-red);
    font-size: 2rem;
    font-weight: bold;
    display: none;
}

@media (min-width: 768px) {
    .flow-arrow {
        display: block;
    }
}

/* ===========================
   CHECKLIST GRID
   =========================== */
.checklist-grid {
    max-width: 800px;
    margin: 0 auto;
}

.checklist-card {
    background: var(--white);
    padding: var(--spacing-lg);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-md);
}

.check-list {
    list-style: none;
}

.check-list li {
    padding: var(--spacing-md) 0;
    padding-left: 2.5rem;
    position: relative;
    border-bottom: 1px solid var(--medium-gray);
    font-size: clamp(1rem, 2vw, 1.125rem);
}

.check-list li:last-child {
    border-bottom: none;
}

.check-list li::before {
    content: "✓";
    position: absolute;
    left: 0;
    top: var(--spacing-md);
    width: 32px;
    height: 32px;
    background: var(--verizon-red);
    color: var(--white);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: bold;
}

/* ===========================
   TRAINING GRID
   =========================== */
.training-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: var(--spacing-md);
}

.training-card {
    background: var(--white);
    padding: var(--spacing-lg);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-md);
    text-align: center;
    border-top: 4px solid var(--verizon-red);
}

.training-card h3 {
    font-family: var(--font-heading);
    font-size: clamp(1.125rem, 2vw, 1.35rem);
    color: var(--verizon-red);
    margin-bottom: var(--spacing-sm);
}

.training-card p {
    color: var(--dark-gray);
    line-height: 1.6;
}

/* ===========================
   METRICS GRID
   =========================== */
.metrics-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-lg);
}

.metric-card {
    background: var(--white);
    padding: var(--spacing-lg);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-md);
    text-align: center;
}

.metric-icon {
    width: 64px;
    height: 64px;
    background: var(--verizon-red);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto var(--spacing-md);
}

.metric-icon svg {
    color: var(--white);
}

.metric-card h3 {
    font-family: var(--font-heading);
    font-size: clamp(1.125rem, 2vw, 1.35rem);
    color: var(--verizon-red);
    margin-bottom: var(--spacing-sm);
}

.metric-card p {
    color: var(--dark-gray);
    line-height: 1.6;
}

/* ===========================
   OUTPUTS GRID
   =========================== */
.outputs-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: var(--spacing-md);
}

.output-card {
    background: var(--black);
    color: var(--white);
    padding: var(--spacing-lg);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-md);
    text-align: center;
    border: 2px solid var(--neon-yellow);
}

.output-card h3 {
    font-family: var(--font-heading);
    font-size: clamp(1.125rem, 2vw, 1.25rem);
    margin-bottom: var(--spacing-sm);
    font-weight: 700;
    color: var(--neon-yellow);
}

.output-card p {
    line-height: 1.6;
    font-weight: 500;
}

/* ===========================
   EXAMPLES GRID
   =========================== */
.examples-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--spacing-md);
}

.example-card {
    background: var(--white);
    padding: var(--spacing-lg);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-md);
    border-left: 4px solid var(--verizon-red);
}

.example-card h3 {
    font-family: var(--font-heading);
    font-size: clamp(1.125rem, 2vw, 1.35rem);
    color: var(--verizon-red);
    margin-bottom: var(--spacing-sm);
}

.example-card p {
    color: var(--dark-gray);
    line-height: 1.6;
}

/* ===========================
   TIMELINE
   =========================== */
.timeline {
    max-width: 800px;
    margin: 0 auto;
    position: relative;
}

.timeline::before {
    content: '';
    position: absolute;
    left: 24px;
    top: 0;
    bottom: 0;
    width: 4px;
    background: var(--verizon-red);
}

.timeline-item {
    display: flex;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-lg);
    position: relative;
}

.timeline-marker {
    flex-shrink: 0;
}

.timeline-number {
    width: 56px;
    height: 56px;
    background: var(--white);
    border: 4px solid var(--verizon-red);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    color: var(--verizon-red);
    font-size: clamp(0.875rem, 1.5vw, 1rem);
    position: relative;
    z-index: 1;
}

.timeline-content {
    background: var(--white);
    padding: var(--spacing-lg);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-md);
    flex: 1;
}

.timeline-content h3 {
    font-family: var(--font-heading);
    font-size: clamp(1.125rem, 2vw, 1.35rem);
    color: var(--verizon-red);
    margin-bottom: var(--spacing-sm);
}

.timeline-content p {
    color: var(--dark-gray);
    line-height: 1.6;
}

@media (max-width: 640px) {
    .timeline::before {
        left: 16px;
    }

    .timeline-number {
        width: 40px;
        height: 40px;
        font-size: 0.75rem;
    }
}

/* ===========================
   ADVANTAGE GRID
   =========================== */
.advantage-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: var(--spacing-md);
}

.advantage-card {
    background: var(--white);
    padding: var(--spacing-lg);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-md);
    display: flex;
    gap: var(--spacing-md);
    align-items: flex-start;
}

.advantage-icon {
    width: 40px;
    height: 40px;
    background: var(--verizon-red);
    color: var(--white);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    font-weight: bold;
    flex-shrink: 0;
}

.advantage-card p {
    color: var(--dark-gray);
    line-height: 1.6;
}

/* New advantage card style with icon on top */
.advantage-card-new {
    background: var(--white);
    padding: var(--spacing-lg);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-md);
    text-align: center;
    display: flex;
    flex-direction: column;
    align-items: center;
}

.advantage-icon-top {
    width: 56px;
    height: 56px;
    background: var(--verizon-red);
    color: var(--white);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
    font-weight: bold;
    margin-bottom: var(--spacing-md);
}

.advantage-card-new p {
    color: var(--dark-gray);
    line-height: 1.6;
    font-size: clamp(0.95rem, 2vw, 1.05rem);
}

/* Value Proposition List Style */
.value-prop-container {
    max-width: 900px;
    margin: 0 auto;
}

.value-prop-card {
    background: var(--white);
    padding: var(--spacing-lg);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-md);
    border-left: 6px solid var(--verizon-red);
}

.value-prop-list {
    list-style: none;
    margin: 0;
    padding: 0;
}

.value-prop-list li {
    padding: var(--spacing-md) 0;
    padding-left: 2.5rem;
    position: relative;
    border-bottom: 1px solid var(--medium-gray);
    font-size: clamp(1rem, 2vw, 1.125rem);
    line-height: 1.6;
    color: var(--dark-gray);
}

.value-prop-list li:last-child {
    border-bottom: none;
}

.value-prop-list li::before {
    content: "✓";
    position: absolute;
    left: 0;
    top: var(--spacing-md);
    width: 32px;
    height: 32px;
    background: var(--verizon-red);
    color: var(--white);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: bold;
    font-size: 1.25rem;
}

@media (max-width: 767px) {
    .value-prop-list li {
        padding-left: 2rem;
        font-size: 0.95rem;
    }

    .value-prop-list li::before {
        width: 28px;
        height: 28px;
        font-size: 1rem;
    }
}

/* ===========================
   OPERATING GRID
   =========================== */
.operating-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--spacing-md);
}

.operating-card {
    background: var(--white);
    padding: var(--spacing-lg);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-md);
    text-align: center;
    border-top: 4px solid var(--verizon-red);
}

.operating-card h3 {
    font-family: var(--font-heading);
    font-size: clamp(1.125rem, 2vw, 1.35rem);
    color: var(--verizon-red);
    margin-bottom: var(--spacing-sm);
}

.operating-card p {
    color: var(--dark-gray);
    line-height: 1.6;
}

/* ===========================
   ASK SECTION
   =========================== */
.ask-content {
    max-width: 800px;
    margin: 0 auto;
}

.ask-card {
    background: var(--white);
    padding: var(--spacing-lg);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-md);
    border-left: 6px solid var(--verizon-red);
}

.ask-list {
    list-style: none;
}

.ask-list li {
    padding: var(--spacing-md) 0;
    padding-left: 2.5rem;
    position: relative;
    border-bottom: 1px solid var(--medium-gray);
    font-size: clamp(1rem, 2vw, 1.125rem);
    font-weight: 500;
    color: var(--black);
}

.ask-list li:last-child {
    border-bottom: none;
}

.ask-list li::before {
    content: "→";
    position: absolute;
    left: 0;
    top: var(--spacing-md);
    color: var(--verizon-red);
    font-weight: bold;
    font-size: 1.5rem;
}

/* ===========================
   CONTACT SECTION (High-Energy)
   =========================== */
.contact-section {
    background: linear-gradient(135deg, var(--verizon-red) 0%, var(--verizon-red) 70%, var(--neon-yellow) 100%);
    color: var(--white);
}

.contact-section .section-title span {
    color: var(--white);
}

.contact-intro {
    text-align: center;
    font-size: clamp(1.125rem, 2.5vw, 1.35rem);
    margin-bottom: var(--spacing-lg);
}

.contact-methods {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
    max-width: 600px;
    margin: 0 auto;
}

.contact-button {
    background: var(--white);
    color: var(--black);
    padding: var(--spacing-md) var(--spacing-lg);
    border-radius: var(--radius-md);
    text-decoration: none;
    font-weight: 600;
    font-size: clamp(1rem, 2vw, 1.125rem);
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    box-shadow: var(--shadow-md);
    transition: transform 0.2s, box-shadow 0.2s;
}

.contact-button:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.contact-button svg {
    flex-shrink: 0;
}

/* ===========================
   FOOTER
   =========================== */
.footer {
    background: var(--black);
    color: var(--white);
    padding: var(--spacing-lg) 0;
    text-align: center;
}

.footer p {
    margin: var(--spacing-xs) 0;
    opacity: 0.9;
}

.footer-tagline {
    font-size: 0.875rem;
    color: var(--neon-yellow);
}

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

/* Tablet (768px - 1199px) */
@media (max-width: 1199px) {
    .container {
        padding: 0 var(--spacing-md);
    }

    .flow-diagram {
        flex-direction: column;
    }

    .feature-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

/* Mobile (< 768px) */
@media (max-width: 767px) {
    .hero {
        padding: clamp(3rem, 8vw, 5rem) var(--spacing-sm);
    }

    .section {
        padding: clamp(2rem, 6vw, 4rem) 0;
    }

    .container {
        padding: 0 var(--spacing-sm);
    }

    .feature-grid,
    .tools-grid,
    .gems-grid,
    .training-grid,
    .metrics-grid,
    .outputs-grid,
    .examples-grid,
    .advantage-grid,
    .operating-grid {
        grid-template-columns: 1fr;
    }

    .two-column {
        grid-template-columns: 1fr;
    }

    .framework-grid {
        grid-template-columns: 1fr;
    }

    .content-card,
    .feature-card,
    .framework-card,
    .tool-card,
    .gem-card,
    .training-card,
    .metric-card,
    .output-card,
    .example-card,
    .advantage-card,
    .operating-card {
        padding: var(--spacing-md);
    }

    .contact-button {
        font-size: 0.875rem;
        padding: var(--spacing-sm) var(--spacing-md);
    }
}

/* Small Mobile (< 640px) */
@media (max-width: 640px) {
    html {
        font-size: 14px;
    }

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

    .hero-subtitle {
        font-size: 1.25rem;
    }

    .section-title span {
        font-size: 1.5rem;
    }
}

/* ===========================
   PRINT STYLES
   =========================== */
@media print {
    .contact-button:hover {
        transform: none;
    }

    body {
        background: white;
    }

    .section {
        page-break-inside: avoid;
    }
}