/* --- Premium Apple-Inspired Light Design Token Reset --- */
:root {
    --bg-base: #f5f5f7;
    --bg-surface: rgba(255, 255, 255, 0.65);
    --bg-surface-glow: rgba(0, 0, 0, 0.01);
    --border-glass: rgba(0, 0, 0, 0.08);
    --border-glass-active: rgba(0, 0, 0, 0.18);
    --text-primary: #1d1d1f;
    --text-secondary: #6e6e73;
    --text-tertiary: #86868b;
    --accent-glow: linear-gradient(135deg, #0071e3 0%, #8b5cf6 50%, #ec4899 100%);
    --accent-blue: #0071e3;
    --font-stack: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    --radius-sm: 8px;
    --radius-md: 14px;
    --radius-lg: 22px;
    --transition-smooth: all 0.4s cubic-bezier(0.16, 1, 0.3, 1);
}

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

html {
    font-family: var(--font-stack);
    background-color: var(--bg-base);
    color: var(--text-primary);
    scroll-behavior: smooth;
    -webkit-font-smoothing: antialiased;
    overflow-x: hidden;
}

body {
    position: relative;
    min-height: 100vh;
}

/* --- Ambient Atmospheric Backdrops --- */
.ambient-glow-1 {
    position: fixed;
    top: -10%;
    left: -10%;
    width: 60vw;
    height: 60vh;
    background: radial-gradient(circle, rgba(0, 113, 227, 0.06) 0%, rgba(255,255,255,0) 70%);
    z-index: -2;
    pointer-events: none;
    filter: blur(80px);
}

.ambient-glow-2 {
    position: fixed;
    bottom: 10%;
    right: -10%;
    width: 50vw;
    height: 50vh;
    background: radial-gradient(circle, rgba(139, 92, 246, 0.05) 0%, rgba(255,255,255,0) 70%);
    z-index: -2;
    pointer-events: none;
    filter: blur(100px);
}

/* --- Global Structural Components --- */
.container {
    max-width: 1120px;
    margin: 0 auto;
    padding: 0 24px;
}

.section-padding {
    padding: 120px 0;
}

.pill-label {
    display: inline-flex;
    align-items: center;
    padding: 6px 14px;
    border-radius: 20px;
    background: rgba(0, 0, 0, 0.03);
    border: 1px solid var(--border-glass);
    font-size: 12px;
    font-weight: 500;
    letter-spacing: 0.02em;
    color: var(--text-primary);
    margin-bottom: 24px;
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
}

.glass-card {
    background: var(--bg-surface);
    border: 1px solid var(--border-glass);
    border-radius: var(--radius-lg);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    transition: var(--transition-smooth);
}

/* --- Scroll Reveal Framework --- */
.reveal {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.8s cubic-bezier(0.16, 1, 0.3, 1), transform 0.8s cubic-bezier(0.16, 1, 0.3, 1);
}

.reveal.active {
    opacity: 1;
    transform: translateY(0);
}

/* --- Typography Styles --- */
h1, h2, h3, h4 {
    font-weight: 600;
    letter-spacing: -0.02em;
    line-height: 1.15;
}

.section-title {
    font-size: 40px;
    text-align: center;
    margin-bottom: 16px;
    background: linear-gradient(180deg, #1d1d1f 0%, #515154 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.section-subtitle {
    font-size: 19px;
    color: var(--text-secondary);
    text-align: center;
    max-width: 600px;
    margin: 0 auto 60px auto;
    line-height: 1.5;
}

/* --- Premium Interactive Buttons --- */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 14px 28px;
    font-size: 15px;
    font-weight: 500;
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: var(--transition-smooth);
    text-decoration: none;
    outline: none;
}

.btn-primary {
    background: #1d1d1f;
    color: #ffffff;
    border: none;
}

.btn-primary:hover {
    background: #323236;
    transform: translateY(-2px);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.08);
}

.btn-secondary {
    background: rgba(0, 0, 0, 0.02);
    color: var(--text-primary);
    border: 1px solid var(--border-glass);
}

.btn-secondary:hover {
    background: rgba(0, 0, 0, 0.05);
    border-color: var(--border-glass-active);
    transform: translateY(-2px);
}

/* --- Sticky Navigation System --- */
.navbar {
    position: sticky;
    top: 0;
    z-index: 100;
    background: rgba(245, 245, 247, 0.7);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border-glass);
    transition: var(--transition-smooth);
}

.nav-container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 64px;
    max-width: 1120px;
    margin: 0 auto;
    padding: 0 24px;
}

.logo {
    font-size: 19px;
    font-weight: 600;
    letter-spacing: -0.03em;
    color: var(--text-primary);
    text-decoration: none;
    display: flex;
    align-items: center;
    gap: 8px;
}

.logo::before {
    content: '';
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background: var(--accent-glow);
}

.nav-links {
    display: flex;
    gap: 32px;
}

.nav-links a {
    font-size: 14px;
    color: var(--text-secondary);
    text-decoration: none;
    transition: color 0.2s ease;
}

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

.nav-cta {
    padding: 8px 16px;
    font-size: 13px;
    border-radius: 20px;
}

/* --- Section 1: Hero Component --- */
.hero-grid {
    display: grid;
    grid-template-columns: 1.1fr 0.9fr;
    gap: 60px;
    align-items: center;
    padding-top: 60px;
}

.hero-left h1 {
    font-size: 56px;
    line-height: 1.08;
    background: linear-gradient(180deg, #1d1d1f 0%, #6e6e73 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    margin-bottom: 24px;
}

.hero-left p {
    font-size: 21px;
    line-height: 1.45;
    color: var(--text-secondary);
    margin-bottom: 36px;
}

.hero-actions {
    display: flex;
    gap: 16px;
}

.hero-preview-card {
    padding: 32px;
    position: relative;
    box-shadow: 0 30px 60px rgba(0, 0, 0, 0.05);
    background: #ffffff;
}

.hero-preview-card::before {
    content: '';
    position: absolute;
    inset: -1px;
    border-radius: var(--radius-lg);
    padding: 1px;
    background: linear-gradient(135deg, rgba(0,0,0,0.06) 0%, rgba(0,0,0,0.01) 100%);
    -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
    -webkit-mask-composite: xor;
    mask-composite: exclude;
    pointer-events: none;
}

.card-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 24px;
}

.card-title {
    font-size: 14px;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--text-secondary);
    font-weight: 500;
}

.card-body {
    font-size: 18px;
    line-height: 1.5;
    color: var(--text-primary);
    margin-bottom: 24px;
    font-weight: 400;
}

.card-footer {
    font-size: 12px;
    color: var(--text-tertiary);
    display: flex;
    align-items: center;
    gap: 6px;
}

.pulse-dot {
    width: 6px;
    height: 6px;
    background-color: #10b981;
    border-radius: 50%;
    display: inline-block;
    box-shadow: 0 0 8px #10b981;
}

/* --- Section 2: Emotional Hook Cards --- */
.hooks-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}

.hook-card {
    padding: 40px 32px;
    background: #ffffff;
}

.hook-card:hover {
    transform: translateY(-4px);
    background: rgba(255, 255, 255, 0.9);
    border-color: rgba(0, 0, 0, 0.15);
}

.hook-card h3 {
    font-size: 22px;
    margin-bottom: 16px;
    font-weight: 500;
}

.hook-card p {
    font-size: 15px;
    color: var(--text-secondary);
    line-height: 1.5;
}

/* --- Section 3: Core Dynamic Engine App --- */
.app-wrapper {
    max-width: 760px;
    margin: 0 auto;
    position: relative;
}

/* Dynamic Glowing Cyber-Border Design element */
.app-glowing-container {
    position: relative;
    border-radius: var(--radius-lg);
    padding: 1px;
    background: linear-gradient(135deg, rgba(0, 113, 227, 0.25) 0%, rgba(139, 92, 246, 0.25) 100%);
    box-shadow: 0 40px 80px rgba(0, 0, 0, 0.06);
}

.app-card {
    background: #ffffff;
    border-radius: calc(var(--radius-lg) - 1px);
    padding: 48px;
}

.form-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 24px;
    margin-bottom: 32px;
}

.form-group.full-width {
    grid-column: span 2;
}

.form-group label {
    display: block;
    font-size: 13px;
    font-weight: 500;
    color: var(--text-secondary);
    margin-bottom: 10px;
    letter-spacing: 0.01em;
}

.form-group input, .form-group select, .form-group textarea {
    width: 100%;
    background: rgba(0, 0, 0, 0.02);
    border: 1px solid rgba(0, 0, 0, 0.08);
    border-radius: var(--radius-sm);
    padding: 14px 16px;
    font-family: var(--font-stack);
    font-size: 15px;
    color: var(--text-primary);
    transition: var(--transition-smooth);
    outline: none;
}

.form-group input:focus, .form-group select:focus, .form-group textarea:focus {
    border-color: rgba(0, 0, 0, 0.35);
    background: rgba(0, 0, 0, 0.03);
    box-shadow: 0 0 0 4px rgba(0, 0, 0, 0.01);
}

.form-group textarea {
    resize: vertical;
    min-height: 90px;
}

.btn-submit {
    width: 100%;
    background: #1d1d1f;
    color: #ffffff;
    font-weight: 600;
    border: none;
    padding: 16px;
}

.btn-submit:hover {
    background: #323236;
}

/* Form Error Display styling */
.error-banner {
    background: rgba(239, 68, 68, 0.08);
    border: 1px solid rgba(239, 68, 68, 0.15);
    color: #ef4444;
    padding: 14px;
    border-radius: var(--radius-sm);
    margin-bottom: 24px;
    font-size: 14px;
    display: none;
    animation: fadeIn 0.3s ease;
}

/* Architectural Generation Engine States */
.loading-zone {
    display: none;
    text-align: center;
    padding: 40px 0;
}

.spinner {
    width: 40px;
    height: 40px;
    border: 3px solid rgba(0, 0, 0, 0.04);
    border-top-color: var(--text-primary);
    border-radius: 50%;
    margin: 0 auto 24px auto;
    animation: spin 1s linear infinite;
}

.loading-text {
    font-size: 16px;
    color: var(--text-secondary);
    font-weight: 400;
    letter-spacing: 0.02em;
}

/* Result Component Structure */
.result-zone {
    display: none;
    margin-top: 40px;
    border-top: 1px solid rgba(0, 0, 0, 0.08);
    padding-top: 40px;
    animation: fadeIn 0.8s cubic-bezier(0.16, 1, 0.3, 1);
}

.result-title {
    font-size: 13px;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    color: #8b5cf6;
    font-weight: 600;
    margin-bottom: 16px;
}

.result-message {
    font-size: 20px;
    line-height: 1.5;
    color: var(--text-primary);
    margin-bottom: 32px;
    font-weight: 400;
    white-space: pre-wrap;
}

.result-section {
    background: rgba(0, 0, 0, 0.01);
    border: 1px solid rgba(0, 0, 0, 0.03);
    border-radius: var(--radius-md);
    padding: 24px;
    margin-bottom: 20px;
}

.result-section h4 {
    font-size: 14px;
    color: var(--text-secondary);
    margin-bottom: 12px;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.02em;
}

.result-section p, .result-section ol {
    font-size: 16px;
    line-height: 1.5;
    color: #333336;
}

.result-section ol {
    padding-left: 20px;
}

.result-section li {
    margin-bottom: 8px;
}

.result-section li:last-child {
    margin-bottom: 0;
}

/* --- Section 4: Chat Component Interface --- */
.chat-container {
    max-width: 680px;
    margin: 0 auto;
    border: 1px solid var(--border-glass);
    border-radius: var(--radius-lg);
    display: flex;
    flex-direction: column;
    overflow: hidden;
    background: #ffffff;
    box-shadow: 0 30px 60px rgba(0, 0, 0, 0.04);
}

.chat-window-scroll {
    height: 420px;
    overflow-y: auto;
    padding: 32px;
    display: flex;
    flex-direction: column;
    gap: 20px;
    scroll-behavior: smooth;
    background: #fafafc;
}

/* Scrollbar customizations */
.chat-window-scroll::-webkit-scrollbar {
    width: 6px;
}
.chat-window-scroll::-webkit-scrollbar-track {
    background: transparent;
}
.chat-window-scroll::-webkit-scrollbar-thumb {
    background: rgba(0, 0, 0, 0.08);
    border-radius: 10px;
}

.chat-bubble {
    max-width: 80%;
    padding: 16px 20px;
    border-radius: var(--radius-md);
    font-size: 15px;
    line-height: 1.45;
    animation: fadeIn 0.3s ease;
    word-break: break-word;
    white-space: pre-wrap;
}

.chat-bubble.user {
    background: rgba(0, 0, 0, 0.04);
    color: var(--text-primary);
    align-self: flex-end;
    border-bottom-right-radius: 4px;
    border: 1px solid rgba(0, 0, 0, 0.03);
}

.chat-bubble.future {
    background: linear-gradient(135deg, rgba(0, 113, 227, 0.05) 0%, rgba(139, 92, 246, 0.05) 100%);
    color: var(--text-primary);
    align-self: flex-start;
    border-bottom-left-radius: 4px;
    border: 1px solid rgba(0, 113, 227, 0.15);
}

.chat-lock-state {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    height: 100%;
    text-align: center;
    color: var(--text-secondary);
    font-size: 15px;
    padding: 40px;
}

.chat-input-bar {
    display: flex;
    padding: 16px 24px;
    background: #ffffff;
    border-top: 1px solid var(--border-glass);
    gap: 12px;
    align-items: center;
}

.chat-input-bar input {
    flex: 1;
    background: rgba(0, 0, 0, 0.02);
    border: 1px solid rgba(0, 0, 0, 0.06);
    border-radius: 30px;
    padding: 14px 20px;
    color: var(--text-primary);
    font-family: var(--font-stack);
    font-size: 15px;
    outline: none;
    transition: var(--transition-smooth);
}

.chat-input-bar input:focus {
    border-color: rgba(0, 0, 0, 0.18);
    background: rgba(0, 0, 0, 0.03);
}

.chat-input-bar input:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

.chat-send-btn {
    background: #1d1d1f;
    color: #ffffff;
    border: none;
    width: 42px;
    height: 42px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: var(--transition-smooth);
    outline: none;
    flex-shrink: 0;
}

.chat-send-btn:hover:not(:disabled) {
    background: #323236;
    transform: scale(1.05);
}

.chat-send-btn:disabled {
    background: rgba(0, 0, 0, 0.05);
    color: var(--text-tertiary);
    cursor: not-allowed;
}

/* Typing loader animation */
.typing-dots {
    display: flex;
    gap: 5px;
    align-items: center;
    height: 20px;
    padding: 0 4px;
}

.typing-dot {
    width: 6px;
    height: 6px;
    background: var(--text-secondary);
    border-radius: 50%;
    animation: typing 1.4s infinite both;
}

.typing-dot:nth-child(2) { animation-delay: .2s; }
.typing-dot:nth-child(3) { animation-delay: .4s; }

@keyframes typing {
    0%, 80%, 100% { transform: scale(0.6); opacity: 0.4; }
    40% { transform: scale(1); opacity: 1; }
}

/* --- Section 5: AI Hack Panels --- */
.hacks-container {
    background: radial-gradient(ellipse at top left, rgba(0, 113, 227, 0.04) 0%, rgba(255,255,255,0) 50%);
    border: 1px solid rgba(0, 113, 227, 0.12);
    border-radius: var(--radius-lg);
    padding: 48px;
    background-color: #ffffff;
}

.hacks-layout {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 32px;
}

.hack-item h4 {
    font-size: 17px;
    margin-bottom: 12px;
    font-weight: 500;
    color: #6366f1;
}

.hack-item p {
    font-size: 14px;
    color: var(--text-secondary);
    line-height: 1.5;
}

/* --- Section 6 & 7: Final Conversion & Footer --- */
.dopamine-container {
    text-align: center;
    max-width: 700px;
    margin: 0 auto;
}

.dopamine-container h2 {
    font-size: 48px;
    background: linear-gradient(180deg, #1d1d1f 0%, #6e6e73 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    margin-bottom: 16px;
}

.footer {
    border-top: 1px solid rgba(0, 0, 0, 0.05);
    padding: 40px 0;
    text-align: center;
    font-size: 13px;
    color: var(--text-tertiary);
    letter-spacing: 0.02em;
}

/* --- Toast Notification System --- */
.toast {
    position: fixed;
    bottom: -100px;
    left: 50%;
    transform: translateX(-50%);
    background: #1d1d1f;
    color: #ffffff;
    padding: 14px 28px;
    border-radius: 30px;
    font-size: 14px;
    font-weight: 500;
    box-shadow: 0 20px 40px rgba(0,0,0,0.12);
    z-index: 1000;
    transition: bottom 0.5s cubic-bezier(0.16, 1, 0.3, 1);
    display: flex;
    align-items: center;
    gap: 8px;
}

.toast.show {
    bottom: 40px;
}

.toast.toast-error {
    background: #ef4444;
    color: #ffffff;
}

/* --- Keyframes Animations --- */
@keyframes spin {
    to { transform: rotate(360deg); }
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(10px); }
    to { opacity: 1; transform: translateY(0); }
}

/* --- Custom Adaptive Media Viewports --- */
@media (max-width: 968px) {
    .hero-grid {
        grid-template-columns: 1fr;
        gap: 48px;
        text-align: center;
    }
    .hero-left h1 {
        font-size: 44px;
    }
    .hero-actions {
        justify-content: center;
    }
    .hooks-grid, .hacks-layout {
        grid-template-columns: 1fr;
        gap: 24px;
    }
    .form-grid {
        grid-template-columns: 1fr;
    }
    .form-group.full-width {
        grid-column: span 1;
    }
    .section-title {
        font-size: 32px;
    }
    .nav-links {
        display: none;
    }
}