/* AI for Experienced Professionals - Landing Page Styles */

/* ===== CSS Variables ===== */
:root {
    --color-primary: #2563eb;
    --color-primary-dark: #1d4ed8;
    --color-primary-light: #3b82f6;
    --color-secondary: #1e293b;
    --color-accent: #f59e0b;
    --color-text: #334155;
    --color-text-light: #64748b;
    --color-text-dark: #0f172a;
    --color-bg: #ffffff;
    --color-bg-alt: #f8fafc;
    --color-bg-dark: #1e293b;
    --color-border: #e2e8f0;
    --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    --max-width: 1200px;
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 1.5rem;
    --spacing-lg: 2rem;
    --spacing-xl: 3rem;
    --spacing-2xl: 4rem;
    --border-radius: 8px;
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-family);
    font-size: 1rem;
    line-height: 1.6;
    color: var(--color-text);
    background-color: var(--color-bg);
}

h1, h2, h3, h4, h5, h6 {
    color: var(--color-text-dark);
    line-height: 1.3;
    margin-bottom: var(--spacing-sm);
}

h1 { font-size: 2.5rem; font-weight: 700; }
h2 { font-size: 2rem; font-weight: 600; }
h3 { font-size: 1.5rem; font-weight: 600; }
h4 { font-size: 1.25rem; font-weight: 600; }

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

a {
    color: var(--color-primary);
    text-decoration: none;
    transition: color 0.2s ease;
}

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

ul {
    list-style: none;
}

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

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

section {
    padding: var(--spacing-2xl) 0;
}

/* ===== Buttons ===== */
.btn {
    display: inline-block;
    padding: 0.875rem 1.75rem;
    font-size: 1rem;
    font-weight: 500;
    text-align: center;
    border-radius: var(--border-radius);
    cursor: pointer;
    transition: all 0.2s ease;
    border: 2px solid transparent;
}

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

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

.btn-secondary {
    background-color: transparent;
    color: var(--color-primary);
    border-color: var(--color-primary);
}

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

.btn-outline {
    background-color: transparent;
    color: var(--color-secondary);
    border-color: var(--color-border);
}

.btn-outline:hover {
    border-color: var(--color-primary);
    color: var(--color-primary);
}

.btn-full {
    width: 100%;
}

/* ===== Navigation ===== */
.nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background-color: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    z-index: 1000;
    border-bottom: 1px solid var(--color-border);
}

.nav-container {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: var(--spacing-sm) var(--spacing-md);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.nav-logo {
    font-size: 1.125rem;
    font-weight: 600;
    color: var(--color-text-dark);
}

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

.nav-links {
    display: flex;
    gap: var(--spacing-lg);
}

.nav-links a {
    color: var(--color-text);
    font-weight: 500;
    font-size: 0.9375rem;
}

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

/* ===== Hero Section ===== */
.hero {
    padding-top: 120px;
    padding-bottom: var(--spacing-2xl);
    background: linear-gradient(180deg, var(--color-bg-alt) 0%, var(--color-bg) 100%);
}

.hero-container {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 var(--spacing-md);
    display: grid;
    grid-template-columns: 1.2fr 0.8fr;
    gap: var(--spacing-2xl);
    align-items: center;
}

.hero-eyebrow {
    color: var(--color-primary);
    font-weight: 500;
    font-size: 1rem;
    margin-bottom: var(--spacing-sm);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.hero-title {
    font-size: 3rem;
    line-height: 1.15;
    margin-bottom: var(--spacing-md);
}

.hero-subtitle {
    font-size: 1.25rem;
    color: var(--color-text-light);
    margin-bottom: var(--spacing-lg);
    line-height: 1.7;
}

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

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

.hero-photo-placeholder {
    width: 280px;
    height: 280px;
    margin: 0 auto var(--spacing-md);
    border-radius: 50%;
    overflow: hidden;
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: var(--shadow-lg);
}

.hero-photo-placeholder img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.photo-fallback {
    font-size: 5rem;
    font-weight: 700;
    color: white;
}

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

.hero-credentials p {
    margin-bottom: 0.25rem;
    color: var(--color-text-light);
}

.hero-credentials p:first-child {
    color: var(--color-text-dark);
    font-size: 1.25rem;
}

/* ===== Problem Section ===== */
.problem {
    background-color: var(--color-bg-dark);
    color: white;
}

.problem h2 {
    color: white;
    text-align: center;
    margin-bottom: var(--spacing-xl);
}

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

.problem-card {
    text-align: center;
    padding: var(--spacing-lg);
}

.problem-icon {
    font-size: 3.5rem;
    font-weight: 700;
    color: var(--color-accent);
    margin-bottom: var(--spacing-sm);
}

.problem-card p {
    color: rgba(255, 255, 255, 0.9);
    font-size: 1.0625rem;
}

/* ===== About Section ===== */
.about {
    background-color: var(--color-bg);
}

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

.about h2 {
    margin-bottom: var(--spacing-lg);
}

.about p {
    font-size: 1.125rem;
    margin-bottom: var(--spacing-md);
}

.credentials-list {
    margin-top: var(--spacing-xl);
    padding: var(--spacing-lg);
    background-color: var(--color-bg-alt);
    border-radius: var(--border-radius);
}

.credentials-list h3 {
    margin-bottom: var(--spacing-md);
}

.credentials-list ul {
    list-style: disc;
    padding-left: var(--spacing-lg);
}

.credentials-list li {
    margin-bottom: var(--spacing-xs);
    font-size: 1rem;
}

/* ===== Services Section ===== */
.services {
    background-color: var(--color-bg-alt);
}

.services h2 {
    text-align: center;
    margin-bottom: var(--spacing-xl);
}

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

.service-card {
    background-color: var(--color-bg);
    padding: var(--spacing-lg);
    border-radius: var(--border-radius);
    text-align: center;
    border: 1px solid var(--color-border);
    position: relative;
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}

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

.service-card.featured {
    border-color: var(--color-primary);
    border-width: 2px;
}

.service-badge {
    position: absolute;
    top: -12px;
    left: 50%;
    transform: translateX(-50%);
    background-color: var(--color-primary);
    color: white;
    padding: 0.25rem 1rem;
    font-size: 0.75rem;
    font-weight: 600;
    border-radius: 20px;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.service-icon {
    color: var(--color-primary);
    margin-bottom: var(--spacing-md);
}

.service-card h3 {
    margin-bottom: var(--spacing-sm);
}

.service-card p {
    color: var(--color-text-light);
    margin-bottom: var(--spacing-md);
}

.service-price {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--color-text-dark);
    margin-bottom: var(--spacing-md);
}

/* ===== Lead Magnet Section ===== */
.lead-magnet {
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
    color: white;
}

.lead-magnet-content {
    display: grid;
    grid-template-columns: 1.2fr 0.8fr;
    gap: var(--spacing-2xl);
    align-items: center;
}

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

.lead-magnet-text p {
    font-size: 1.125rem;
    opacity: 0.95;
    margin-bottom: var(--spacing-md);
}

.guide-features {
    list-style: none;
    margin-top: var(--spacing-md);
}

.guide-features li {
    padding-left: 1.75rem;
    position: relative;
    margin-bottom: var(--spacing-sm);
    font-size: 1.0625rem;
}

.guide-features li::before {
    content: "✓";
    position: absolute;
    left: 0;
    color: var(--color-accent);
    font-weight: bold;
}

.lead-magnet-form {
    background-color: white;
    padding: var(--spacing-lg);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-lg);
}

.lead-magnet-form input[type="email"] {
    width: 100%;
    padding: 1rem;
    font-size: 1rem;
    border: 2px solid var(--color-border);
    border-radius: var(--border-radius);
    margin-bottom: var(--spacing-sm);
    font-family: var(--font-family);
}

.lead-magnet-form input[type="email"]:focus {
    outline: none;
    border-color: var(--color-primary);
}

.form-disclaimer {
    text-align: center;
    font-size: 0.875rem;
    color: var(--color-text-light);
    margin-top: var(--spacing-sm);
    margin-bottom: 0;
}

/* ===== Speaking Section ===== */
.speaking {
    background-color: var(--color-bg);
}

.speaking h2 {
    text-align: center;
    margin-bottom: var(--spacing-xl);
}

.speaking-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-2xl);
}

.speaking-topics h3 {
    margin-bottom: var(--spacing-md);
}

.topic-card {
    padding: var(--spacing-md);
    background-color: var(--color-bg-alt);
    border-radius: var(--border-radius);
    margin-bottom: var(--spacing-md);
    border-left: 4px solid var(--color-primary);
}

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

.topic-card p {
    color: var(--color-text-light);
    margin-bottom: 0;
    font-size: 0.9375rem;
}

.speaking-form {
    background-color: var(--color-bg-alt);
    padding: var(--spacing-lg);
    border-radius: var(--border-radius);
}

.speaking-form h3 {
    margin-bottom: var(--spacing-md);
}

.speaking-form input,
.speaking-form textarea {
    width: 100%;
    padding: 0.875rem;
    font-size: 1rem;
    border: 2px solid var(--color-border);
    border-radius: var(--border-radius);
    margin-bottom: var(--spacing-sm);
    font-family: var(--font-family);
    background-color: white;
}

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

.speaking-form textarea {
    resize: vertical;
    min-height: 100px;
}

/* ===== Writing Section ===== */
.writing {
    background-color: var(--color-bg);
}

.writing h2 {
    text-align: center;
    margin-bottom: var(--spacing-sm);
}

.section-intro {
    text-align: center;
    color: var(--color-text-light);
    font-size: 1.125rem;
    margin-bottom: var(--spacing-xl);
    max-width: 700px;
    margin-left: auto;
    margin-right: auto;
}

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

.article-card {
    display: block;
    padding: var(--spacing-lg);
    background-color: var(--color-bg-alt);
    border-radius: var(--border-radius);
    border: 1px solid var(--color-border);
    transition: transform 0.2s ease, box-shadow 0.2s ease, border-color 0.2s ease;
    text-decoration: none;
}

.article-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
    border-color: var(--color-primary);
}

.article-date {
    font-size: 0.875rem;
    color: var(--color-text-light);
    display: block;
    margin-bottom: var(--spacing-xs);
}

.article-card h3 {
    color: var(--color-text-dark);
    font-size: 1.25rem;
    margin-bottom: var(--spacing-sm);
    line-height: 1.4;
}

.article-card p {
    color: var(--color-text-light);
    font-size: 0.9375rem;
    margin-bottom: 0;
}

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

.writing-cta p {
    margin-bottom: var(--spacing-md);
    color: var(--color-text-light);
}

.writing-cta a:not(.btn) {
    color: var(--color-primary);
}

/* ===== Consulting Section ===== */
.consulting {
    background-color: var(--color-bg);
    padding: var(--spacing-2xl) 0;
}

.consulting h2 {
    text-align: center;
    margin-bottom: var(--spacing-lg);
}

.consulting .section-intro {
    text-align: center;
    font-size: 1.125rem;
    color: var(--color-text-dark);
    margin-bottom: var(--spacing-lg);
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

.consulting-detail {
    text-align: center;
    color: var(--color-text-light);
    font-size: 1rem;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
    line-height: 1.6;
    margin-bottom: var(--spacing-md);
}

.consulting-note {
    text-align: center;
    color: var(--color-text-light);
    font-size: 0.9375rem;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
    line-height: 1.6;
    margin-bottom: 0;
}

/* ===== Contact Section ===== */
.contact {
    background-color: var(--color-bg-alt);
}

.contact h2 {
    text-align: center;
    margin-bottom: var(--spacing-sm);
}

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

.contact-options {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-xl);
}

.contact-option {
    text-align: center;
    padding: var(--spacing-lg);
    background-color: var(--color-bg);
    border-radius: var(--border-radius);
}

.contact-option h3 {
    font-size: 1.125rem;
    margin-bottom: var(--spacing-sm);
}

.contact-option p {
    color: var(--color-text-light);
    margin-bottom: var(--spacing-md);
}

/* ===== Newsletter Section ===== */
.newsletter {
    background-color: var(--color-bg-dark);
    color: white;
    padding: var(--spacing-xl) 0;
}

.newsletter-content {
    max-width: 500px;
    margin: 0 auto;
    text-align: center;
}

.newsletter h2 {
    color: white;
    margin-bottom: var(--spacing-sm);
}

.newsletter p {
    color: rgba(255, 255, 255, 0.8);
    margin-bottom: var(--spacing-md);
}

.newsletter form {
    display: flex;
    gap: var(--spacing-sm);
}

.newsletter input[type="email"] {
    flex: 1;
    padding: 0.875rem 1rem;
    font-size: 1rem;
    border: 2px solid transparent;
    border-radius: var(--border-radius);
    font-family: var(--font-family);
}

.newsletter input[type="email"]:focus {
    outline: none;
    border-color: var(--color-primary);
}

.newsletter .form-disclaimer {
    font-size: 0.875rem;
    color: rgba(255, 255, 255, 0.5);
    margin-top: var(--spacing-sm);
    margin-bottom: 0;
}

/* ===== Speaking Note ===== */
.speaking-note {
    background-color: var(--color-bg-alt);
    padding: var(--spacing-lg);
    border-radius: var(--border-radius);
}

.speaking-note h3 {
    margin-bottom: var(--spacing-md);
}

.speaking-note ul {
    list-style: disc;
    padding-left: var(--spacing-lg);
    margin-bottom: var(--spacing-md);
}

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

.speaking-availability {
    color: var(--color-text-light);
    font-style: italic;
    margin-bottom: 0;
}

/* ===== Responsive Updates ===== */
@media (max-width: 768px) {
    .articles-grid {
        grid-template-columns: 1fr;
    }

    .contact-options {
        grid-template-columns: 1fr;
    }

    .newsletter form {
        flex-direction: column;
    }
}

/* ===== Footer ===== */
.footer {
    background-color: var(--color-bg-dark);
    color: white;
    padding: var(--spacing-2xl) 0 var(--spacing-lg);
}

.footer-content {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr;
    gap: var(--spacing-2xl);
    margin-bottom: var(--spacing-xl);
}

.footer-logo {
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: var(--spacing-sm);
}

.footer-brand p {
    color: rgba(255, 255, 255, 0.7);
}

.footer-links h4 {
    color: white;
    margin-bottom: var(--spacing-md);
    font-size: 1rem;
}

.footer-links a {
    display: block;
    color: rgba(255, 255, 255, 0.7);
    margin-bottom: var(--spacing-xs);
    transition: color 0.2s ease;
}

.footer-links a:hover {
    color: white;
}

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

.footer-bottom p {
    color: rgba(255, 255, 255, 0.5);
    font-size: 0.875rem;
    margin-bottom: 0;
}

/* ===== Responsive Design ===== */
@media (max-width: 1024px) {
    .hero-container {
        grid-template-columns: 1fr;
        text-align: center;
    }

    .hero-content {
        order: 2;
    }

    .hero-image {
        order: 1;
    }

    .hero-cta {
        justify-content: center;
    }

    .hero-title {
        font-size: 2.5rem;
    }

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

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

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

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

    .nav-links {
        display: none;
    }

    .hero {
        padding-top: 100px;
    }

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

    .hero-subtitle {
        font-size: 1.0625rem;
    }

    .hero-photo-placeholder {
        width: 200px;
        height: 200px;
    }

    .photo-fallback {
        font-size: 3.5rem;
    }

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

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

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

    .footer-content {
        grid-template-columns: 1fr;
        text-align: center;
    }
}