/* ===== CONCEPT 2 UPDATED: ULTRA-MINIMAL TYPOGRAPHY WITH GRADIENT ACCENTS =====
   Design Philosophy: Refined minimalism, typography-first, sophisticated elegance
   Enhanced with strategic blue-purple gradient highlights
   Target: Professional knowledge workers who value clarity and substance
*/

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    font-size: 17px;
    line-height: 1.7;
    color: #1f2937;
    background-color: #ffffff;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    font-weight: 400;
}

/* ===== TYPOGRAPHY ===== */
h1, h2, h3 {
    font-weight: 600;
    line-height: 1.2;
    margin-bottom: 1.5rem;
    color: #0f172a;
    letter-spacing: -0.025em;
}

h1 {
    font-size: 3.5rem;
    font-weight: 600;
}

h2 {
    font-size: 3rem;
    font-weight: 600;
}

h3 {
    font-size: 1.5rem;
    font-weight: 600;
}

p {
    color: #475569;
    line-height: 1.8;
}

strong {
    background: linear-gradient(135deg, #3b82f6 0%, #8b5cf6 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    font-weight: 600;
}

/* ===== LAYOUT ===== */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 4rem;
}

section {
    padding: 10rem 0;
}

/* ===== LOGO (CONCEPT 4 STYLE) ===== */
.hero-header {
    margin-bottom: 6rem;
}

.logo-text {
    font-family: 'Inter', sans-serif;
    font-size: 2.25rem;
    font-weight: 800;
    background: linear-gradient(135deg, #3b82f6 0%, #8b5cf6 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    letter-spacing: -0.04em;
    text-decoration: none;
    display: inline-block;
    transition: transform 0.2s ease-out;
}

.logo-text:hover {
    transform: translateY(-2px);
}

/* ===== HERO SECTION (AIDA: ATTENTION) ===== */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    background-color: #ffffff;
    border-bottom: 1px solid #e2e8f0;
}

.hero-layout {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 8rem;
    align-items: center;
}

.hero-content {
    animation: fadeInUp 1s ease-out;
}

.hero-subtitle {
    font-size: 1.125rem;
    color: #64748b;
    line-height: 1.8;
    margin-bottom: 3rem;
    font-weight: 400;
}

.cta-group {
    margin-top: 3rem;
}

.cta-primary {
    background: linear-gradient(135deg, #3b82f6 0%, #8b5cf6 100%);
    color: #ffffff;
    font-size: 1rem;
    font-weight: 600;
    padding: 1rem 2.5rem;
    border: none;
    border-radius: 0;
    cursor: pointer;
    transition: transform 0.2s ease-out, box-shadow 0.2s ease-out;
    display: inline-flex;
    align-items: center;
    gap: 0.75rem;
    position: relative;
    box-shadow: 0 4px 14px rgba(59, 130, 246, 0.25);
}

.cta-primary::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 2px;
    background: linear-gradient(90deg, #3b82f6, #8b5cf6);
    transform: scaleX(0);
    transform-origin: left;
    transition: transform 0.3s ease-out;
}

.cta-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 24px rgba(59, 130, 246, 0.35);
}

.cta-primary:hover::after {
    transform: scaleX(1);
}

.cta-primary svg {
    transition: transform 0.3s ease-out;
}

.cta-primary:hover svg {
    transform: translateX(4px);
}

.cta-reassurance {
    margin-top: 1.25rem;
    font-size: 0.875rem;
    color: #94a3b8;
}

/* ===== HERO VISUAL ===== */
.hero-visual {
    animation: fadeInUp 1.2s ease-out 0.2s both;
}

.visual-container {
    border-left: 1px solid #e2e8f0;
    padding-left: 3rem;
}

.demo-label {
    font-size: 0.75rem;
    font-weight: 600;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    background: linear-gradient(135deg, #3b82f6 0%, #8b5cf6 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 1rem;
}

.conversation-demo,
.result-demo {
    margin-bottom: 2rem;
}

.user-message {
    padding: 1.5rem;
    background-color: #f8fafc;
    border-left: 3px solid;
    border-image: linear-gradient(135deg, #3b82f6 0%, #8b5cf6 100%) 1;
    font-style: italic;
    color: #1f2937;
}

.transform-indicator {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 1rem;
    margin: 3rem 0;
}

.transform-line {
    height: 1px;
    flex: 1;
    background: linear-gradient(to right, #e2e8f0, transparent);
}

.transform-dot {
    width: 12px;
    height: 12px;
    background: linear-gradient(135deg, #3b82f6 0%, #8b5cf6 100%);
    border-radius: 50%;
    box-shadow: 0 4px 12px rgba(59, 130, 246, 0.4);
    animation: pulse-dot 2s ease-in-out infinite;
}

@keyframes pulse-dot {
    0%, 100% { transform: scale(1); opacity: 1; }
    50% { transform: scale(1.5); opacity: 0.5; }
}

.app-components {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1rem;
    margin-bottom: 1rem;
}

.component-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.75rem;
    padding: 1.5rem 1rem;
    background-color: #f8fafc;
    border: 1px solid #e2e8f0;
    transition: all 0.3s ease;
}

.component-item:hover {
    background-color: #ffffff;
    border-color: transparent;
    border-image: linear-gradient(135deg, #3b82f6 0%, #8b5cf6 100%) 1;
    transform: translateY(-2px);
    box-shadow: 0 8px 24px rgba(59, 130, 246, 0.15);
}

.component-icon {
    width: 40px;
    height: 40px;
    background: linear-gradient(135deg, #3b82f6 0%, #8b5cf6 100%);
    color: #ffffff;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 1.125rem;
    box-shadow: 0 4px 12px rgba(59, 130, 246, 0.25);
}

.component-item span {
    font-size: 0.875rem;
    font-weight: 500;
    color: #475569;
}

.time-indicator {
    text-align: center;
    font-size: 0.875rem;
    font-weight: 600;
    color: #0f172a;
    padding: 0.75rem;
    background-color: #f8fafc;
    border: 1px solid #e2e8f0;
}

/* ===== PROBLEM/SOLUTION (AIDA: INTEREST - PAS) ===== */
.problem-solution {
    background-color: #fafaf9;
    border-top: 1px solid #e7e5e4;
    border-bottom: 1px solid #e7e5e4;
}

.comparison {
    display: grid;
    grid-template-columns: 1fr auto 1fr;
    gap: 4rem;
    align-items: start;
}

.comparison-side {
    padding: 3rem 0;
}

.side-label {
    font-size: 0.75rem;
    font-weight: 600;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: #78716c;
    margin-bottom: 2rem;
}

.solution .side-label {
    background: linear-gradient(135deg, #3b82f6 0%, #8b5cf6 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.divider {
    width: 1px;
    background-color: #e7e5e4;
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-top: 4rem;
}

.vs-badge {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 48px;
    height: 48px;
    background: #ffffff;
    border: 2px solid;
    border-image: linear-gradient(135deg, #3b82f6 0%, #8b5cf6 100%) 1;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.75rem;
    font-weight: 700;
    background: linear-gradient(135deg, #3b82f6 0%, #8b5cf6 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.attribute-list {
    list-style: none;
    margin-top: 2rem;
    display: grid;
    gap: 1rem;
}

.attribute-list li {
    padding-left: 2rem;
    position: relative;
    color: #57534e;
    font-size: 0.9375rem;
}

.attribute-list li::before {
    content: '—';
    position: absolute;
    left: 0;
    color: #a8a29e;
}

.attribute-list.positive li::before {
    content: '✓';
    background: linear-gradient(135deg, #3b82f6 0%, #8b5cf6 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* ===== HOW IT WORKS (AIDA: DESIRE) ===== */
.how-it-works {
    background-color: #ffffff;
}

.section-header {
    text-align: center;
    max-width: 800px;
    margin: 0 auto 6rem;
}

.section-intro {
    font-size: 1.125rem;
    color: #64748b;
    margin-top: 1rem;
}

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

.process-step {
    display: grid;
    grid-template-columns: 120px 1fr;
    gap: 3rem;
    padding: 3rem 0;
}

.step-indicator {
    display: flex;
    flex-direction: column;
    align-items: center;
}

.step-num {
    font-size: 1.5rem;
    font-weight: 700;
    color: #ffffff;
    width: 64px;
    height: 64px;
    background: linear-gradient(135deg, #3b82f6 0%, #8b5cf6 100%);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 8px 24px rgba(59, 130, 246, 0.25);
    transition: all 0.3s ease;
}

.process-step:hover .step-num {
    box-shadow: 0 12px 32px rgba(59, 130, 246, 0.35);
    transform: scale(1.05);
}

.step-line {
    width: 1px;
    flex: 1;
    background: linear-gradient(to bottom, rgba(59, 130, 246, 0.3), transparent);
    margin-top: 1rem;
}

.step-content h3 {
    margin-bottom: 1rem;
}

.step-content p {
    color: #64748b;
    line-height: 1.8;
}

/* ===== USE CASES (AIDA: DESIRE - ROLE PAGES NAVIGATION) ===== */
.use-cases {
    background-color: #fafaf9;
    border-top: 1px solid #e7e5e4;
}

.roles-list {
    max-width: 900px;
    margin: 0 auto;
    display: grid;
    gap: 0;
}

.role-item {
    padding: 3rem 0;
    border-top: 1px solid #e7e5e4;
    text-decoration: none;
    display: block;
    transition: all 0.3s ease;
    position: relative;
}

.role-item::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0;
    bottom: 0;
    width: 3px;
    background: linear-gradient(135deg, #3b82f6 0%, #8b5cf6 100%);
    transform: scaleY(0);
    transition: transform 0.3s ease;
}

.role-item:hover::before {
    transform: scaleY(1);
}

.role-item:first-child {
    border-top: none;
}

.role-item:hover {
    padding-left: 2rem;
}

.role-meta {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 1rem;
}

.role-category {
    font-size: 0.75rem;
    font-weight: 600;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: #78716c;
}

.role-item svg {
    color: #a8a29e;
    transition: all 0.3s ease;
}

.role-item:hover svg {
    color: #3b82f6;
    transform: translateX(4px);
}

.role-item h3 {
    margin-bottom: 0.75rem;
    color: #0f172a;
}

.role-item p {
    color: #57534e;
    font-size: 0.9375rem;
}

.role-item.featured {
    background-color: #ffffff;
    padding: 3rem;
    margin: 2rem 0;
    border: 2px solid transparent;
    background-clip: padding-box;
    position: relative;
}

.role-item.featured::after {
    content: '';
    position: absolute;
    inset: -2px;
    border-radius: inherit;
    padding: 2px;
    background: linear-gradient(135deg, #3b82f6 0%, #8b5cf6 100%);
    -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
    mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
    -webkit-mask-composite: xor;
    mask-composite: exclude;
    z-index: -1;
}

.role-item.featured:hover {
    box-shadow: 0 12px 32px rgba(59, 130, 246, 0.15);
}

.role-item.featured .role-category {
    background: linear-gradient(135deg, #3b82f6 0%, #8b5cf6 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* ===== FINAL CTA (AIDA: ACTION) ===== */
.final-cta {
    background: linear-gradient(135deg, #0f172a 0%, #1e293b 100%);
    color: #ffffff;
    border-top: none;
}

.cta-wrapper {
    max-width: 800px;
    margin: 0 auto;
    text-align: center;
}

.final-cta h2 {
    color: #ffffff;
}

.cta-subtitle {
    color: #cbd5e1;
    font-size: 1.125rem;
    margin-bottom: 4rem;
}

/* Honeypot field (hidden from users, catches bots) */
.honeypot-field {
    position: absolute;
    left: -9999px;
    width: 1px;
    height: 1px;
    opacity: 0;
    pointer-events: none;
}

.waitlist-form-final {
    display: grid;
    grid-template-columns: 1fr;
    gap: 1rem;
    max-width: 600px;
    margin: 0 auto 1.5rem;
    position: relative;
}

.form-field {
    position: relative;
}

.role-select {
    width: 100%;
    padding: 1rem 1.5rem;
    font-size: 0.9375rem;
    border: 2px solid #334155;
    background-color: #1e293b;
    color: #94a3b8;
    font-family: inherit;
    transition: all 0.3s ease;
    cursor: pointer;
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg width='12' height='8' viewBox='0 0 12 8' fill='none' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath d='M1 1L6 6L11 1' stroke='%2394a3b8' stroke-width='2' stroke-linecap='round'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 1rem center;
    padding-right: 3rem;
}

.role-select option {
    background-color: #1e293b;
    color: #ffffff;
}

.role-select option:first-child {
    color: #64748b;
}

.role-select:focus {
    outline: none;
    border-color: #3b82f6;
    box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.2);
    color: #ffffff;
}

.role-select:not(:focus):invalid {
    color: #64748b;
}

.inline-form {
    display: grid;
    grid-template-columns: 1fr auto;
    gap: 0;
    max-width: 600px;
    margin: 0 auto 1.5rem;
}

.email-input {
    width: 100%;
    padding: 1rem 1.5rem;
    font-size: 1rem;
    border: 2px solid #334155;
    border-right: none;
    background-color: #1e293b;
    color: #ffffff;
    font-family: inherit;
    transition: all 0.3s ease;
}

.email-input::placeholder {
    color: #64748b;
}

.email-input:focus {
    outline: none;
    border-color: #3b82f6;
    background-color: #1e293b;
    box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.2);
}

.email-input.is-valid {
    border-color: #10b981;
}

.email-input.is-invalid {
    border-color: #ef4444;
    animation: gentle-shake 0.3s ease-in-out;
}

@keyframes gentle-shake {
    0%, 100% { transform: translateX(0); }
    25% { transform: translateX(-3px); }
    75% { transform: translateX(3px); }
}

.inline-form .cta-primary {
    background: linear-gradient(135deg, #3b82f6 0%, #8b5cf6 100%);
    color: #ffffff;
    border-radius: 0;
    border: none;
}

.inline-form .cta-primary:hover {
    box-shadow: 0 8px 24px rgba(59, 130, 246, 0.4);
}

.form-reassurance {
    color: #94a3b8;
    font-size: 0.875rem;
}

.success-state {
    animation: fadeIn 0.5s ease-out;
}

.success-check {
    width: 80px;
    height: 80px;
    background: linear-gradient(135deg, #3b82f6 0%, #8b5cf6 100%);
    color: #ffffff;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 3rem;
    font-weight: 700;
    margin: 0 auto 2rem;
    box-shadow: 0 12px 32px rgba(59, 130, 246, 0.3);
}

.success-state h3 {
    color: #ffffff;
    margin-bottom: 1rem;
}

.success-state p {
    color: #cbd5e1;
}

/* ===== FAQ (TRUST) ===== */
.faq {
    background-color: #ffffff;
}

.faq-container {
    max-width: 900px;
    margin: 0 auto;
}

.faq-question {
    border-top: 1px solid #e2e8f0;
    padding: 3rem 0;
    cursor: pointer;
}

.faq-question:first-child {
    border-top: none;
}

.faq-question summary {
    font-size: 1.25rem;
    font-weight: 600;
    color: #0f172a;
    list-style: none;
    display: flex;
    justify-content: space-between;
    align-items: center;
    cursor: pointer;
    transition: color 0.3s ease;
}

.faq-question summary::-webkit-details-marker {
    display: none;
}

.faq-question summary::after {
    content: '+';
    font-size: 2rem;
    color: #cbd5e1;
    font-weight: 300;
    transition: all 0.3s ease;
    flex-shrink: 0;
    width: 32px;
    text-align: center;
}

.faq-question[open] summary::after {
    content: '−';
    background: linear-gradient(135deg, #3b82f6 0%, #8b5cf6 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.faq-question:hover summary {
    color: #475569;
}

.answer-wrapper {
    display: grid;
    grid-template-rows: 0fr;
    transition: grid-template-rows 0.3s ease-out;
}

.faq-question[open] .answer-wrapper {
    grid-template-rows: 1fr;
}

.answer-content {
    overflow: hidden;
}

.answer-content p {
    margin-top: 2rem;
    color: #64748b;
    line-height: 1.8;
    font-size: 0.9375rem;
}

/* ===== FOOTER ===== */
.footer {
    background-color: #fafaf9;
    border-top: 1px solid #e7e5e4;
    padding: 6rem 0;
}

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

.footer p {
    color: #78716c;
    font-size: 0.875rem;
}

/* ===== SCROLL ANIMATIONS ===== */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

/* Modern CSS Scroll-Driven Animations (View Timelines) */
@supports (animation-timeline: view()) {
    .fade-in-section {
        animation: fadeInUp 1s ease-out;
        animation-timeline: view();
        animation-range: entry 0% entry 30%;
    }
}

/* Fallback for browsers without View Timeline support */
@supports not (animation-timeline: view()) {
    .fade-in-section {
        animation: fadeInUp 1s ease-out;
    }
}

/* ===== RESPONSIVE DESIGN ===== */
@media (max-width: 968px) {
    h1 { font-size: 3rem; }
    h2 { font-size: 2.25rem; }
    
    .hero-layout,
    .comparison {
        grid-template-columns: 1fr;
        gap: 4rem;
    }
    
    .divider,
    .vs-badge {
        display: none;
    }
    
    .visual-container {
        border-left: none;
        border-top: 1px solid #e2e8f0;
        padding-left: 0;
        padding-top: 3rem;
    }
    
    .process-step {
        grid-template-columns: 80px 1fr;
        gap: 2rem;
    }
    
    .inline-form {
        grid-template-columns: 1fr;
    }
    
    .email-input {
        border-right: 2px solid #334155;
        border-bottom: none;
    }
    
    .waitlist-form-final .cta-primary {
        width: 100%;
        justify-content: center;
    }
    
    section {
        padding: 6rem 0;
    }
    
    .container {
        padding: 0 2rem;
    }
    
    .hero-header {
        margin-bottom: 4rem;
    }
}

@media (max-width: 640px) {
    h1 { font-size: 2.25rem; }
    h2 { font-size: 1.875rem; }
    
    .app-components {
        grid-template-columns: 1fr;
    }
    
    .process-step {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }
    
    .step-line {
        display: none;
    }
}