/* 
   Ennova AI Lab - Stark Premium Landing Page Stylesheet
   Brand Aesthetic: High-end developer studio / IDE coordinate system.
   Palette: Dark charcoal off-black base, low-glare grid, deep crimson accent.
*/

:root {
    --bg-canvas: #121214;
    --grid-line: rgba(42, 42, 46, 0.45);
    --grid-dot: rgba(42, 42, 46, 0.9);
    --crimson-accent: #A81827;
    --crimson-hover: #C92A3B;
    --crimson-muted: rgba(168, 24, 39, 0.15);
    
    --text-main: #ECECEF;
    --text-secondary: #8E8E93;
    --text-muted: #52525B;
    
    --border-low-glare: #2A2A2E;
    --border-glow: rgba(168, 24, 39, 0.4);
    
    --font-heading: 'Sora', 'Albert Sans', sans-serif;
    --font-body: 'Albert Sans', sans-serif;
    --font-mono: 'Roboto Mono', monospace;
    
    --transition-speed: 0.3s;
    --transition-ease: cubic-bezier(0.25, 0.8, 0.25, 1);
}

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

body {
    background-color: var(--bg-canvas);
    color: var(--text-main);
    font-family: var(--font-body);
    min-height: 100vh;
    overflow-x: hidden;
    position: relative;
    display: flex;
    justify-content: center;
    align-items: center;
}

/* --- THE SYSTEM GRAPHIC Grid Canvas --- */
.coordinate-grid {
    position: fixed;
    inset: 0;
    z-index: 1;
    pointer-events: none;
    background-image: 
        linear-gradient(to right, var(--grid-line) 1px, transparent 1px),
        linear-gradient(to bottom, var(--grid-line) 1px, transparent 1px);
    background-size: 60px 60px;
    background-position: center;
    
    /* Elegant fading mask outwards from screen center */
    mask-image: radial-gradient(circle at center, black 30%, transparent 90%);
    -webkit-mask-image: radial-gradient(circle at center, black 30%, transparent 90%);
    opacity: 0.85;
}

/* --- MAIN PAGE CONTAINER --- */
.page-container {
    width: 100%;
    max-width: 1200px;
    min-height: 100vh;
    padding: 3rem 2rem;
    position: relative;
    z-index: 2;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    align-items: center;
    gap: 4rem;
}

/* --- SYSTEM HEADER --- */
.system-header {
    width: 100%;
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-bottom: 1px solid var(--border-low-glare);
    padding-bottom: 1.5rem;
}

.logo-container {
    width: 200px;
    height: auto;
    transition: transform var(--transition-speed) var(--transition-ease);
}

.logo-container:hover {
    transform: scale(1.02);
}

/* Vector Brand Logo styling overrides */
.brand-logo {
    width: 100%;
    height: auto;
    display: block;
}

.brand-logo .brand-path {
    stroke: var(--crimson-accent);
    stroke-width: 6.5;
    transition: stroke var(--transition-speed) var(--transition-ease);
}

.brand-logo:hover .brand-path {
    stroke: var(--crimson-hover);
}

.brand-logo .text-main {
    font-family: var(--font-heading);
    font-weight: 700;
    fill: var(--text-main);
    font-size: 54px;
    letter-spacing: 2px;
}

/* --- HERO CARD --- */
.hero-card {
    text-align: center;
    max-width: 780px;
    margin: auto 0;
    display: flex;
    flex-direction: column;
    align-items: center;
}

.system-meta {
    font-family: var(--font-mono);
    font-size: 0.75rem;
    letter-spacing: 0.2em;
    color: var(--crimson-accent);
    margin-bottom: 1.5rem;
    font-weight: 500;
}

.hero-title {
    font-family: var(--font-heading);
    font-size: clamp(1.8rem, 5.5vw, 3.2rem);
    font-weight: 700;
    line-height: 1.15;
    letter-spacing: -0.02em;
    color: var(--text-main);
    margin-bottom: 1.5rem;
}

.hero-subtitle {
    font-size: clamp(0.95rem, 2.5vw, 1.15rem);
    line-height: 1.6;
    color: var(--text-secondary);
    max-width: 640px;
    margin-bottom: 3.5rem;
    font-weight: 300;
}

/* --- WAITLIST INTAKE HOPPER --- */
.waitlist-container {
    width: 100%;
    max-width: 520px;
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.waitlist-form {
    width: 100%;
}

.input-group {
    display: flex;
    width: 100%;
    background: rgba(20, 20, 22, 0.6);
    border: 1px solid var(--border-low-glare);
    border-radius: 4px;
    padding: 0.35rem;
    transition: border-color var(--transition-speed) var(--transition-ease),
                box-shadow var(--transition-speed) var(--transition-ease);
}

.input-group:focus-within {
    border-color: var(--border-glow);
    box-shadow: 0 0 10px rgba(168, 24, 39, 0.1);
}

.waitlist-input {
    flex-grow: 1;
    background: transparent;
    border: none;
    outline: none;
    color: var(--text-main);
    font-family: var(--font-mono);
    font-size: 0.85rem;
    padding: 0.75rem 1rem;
    width: 50%;
}

.waitlist-input::placeholder {
    color: var(--text-muted);
}

.waitlist-btn {
    background-color: var(--crimson-accent);
    color: #FFFFFF;
    border: none;
    outline: none;
    font-family: var(--font-heading);
    font-weight: 600;
    font-size: 0.85rem;
    padding: 0.75rem 1.5rem;
    border-radius: 3px;
    cursor: pointer;
    transition: background-color var(--transition-speed) var(--transition-ease),
                transform var(--transition-speed) var(--transition-ease);
}

.waitlist-btn:hover {
    background-color: var(--crimson-hover);
}

.waitlist-btn:active {
    transform: scale(0.98);
}

.waitlist-btn:disabled {
    background-color: var(--border-low-glare);
    color: var(--text-muted);
    cursor: not-allowed;
}

.security-note {
    font-family: var(--font-mono);
    font-size: 0.68rem;
    color: var(--text-muted);
    letter-spacing: 0.02em;
    text-transform: uppercase;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.35rem;
}

.security-lock-icon {
    width: 12px;
    height: 12px;
    stroke: var(--text-muted);
    display: inline-block;
}

.form-feedback {
    font-family: var(--font-mono);
    font-size: 0.72rem;
    min-height: 18px;
    margin-top: 0.65rem;
    letter-spacing: 0.05em;
}

/* --- SYSTEM FOOTER --- */
.system-footer {
    width: 100%;
    border-top: 1px solid var(--border-low-glare);
    padding-top: 2rem;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1rem;
}

.footer-contact {
    font-family: var(--font-mono);
    font-size: 0.75rem;
    letter-spacing: 0.05em;
    display: flex;
    gap: 0.5rem;
    align-items: center;
}

.footer-label {
    color: var(--text-muted);
}

.footer-link {
    color: var(--text-main);
    text-decoration: none;
    font-weight: 500;
    transition: color var(--transition-speed) var(--transition-ease);
    border-bottom: 1px solid transparent;
}

.footer-link:hover {
    color: var(--crimson-hover);
    border-bottom-color: var(--crimson-hover);
}

.footer-credits {
    font-size: 0.78rem;
    color: var(--text-secondary);
    text-align: center;
}

.footer-credits .author-link {
    color: var(--text-main);
    text-decoration: none;
    font-weight: 500;
    transition: color var(--transition-speed) var(--transition-ease);
}

.footer-credits .author-link:hover {
    color: var(--crimson-hover);
    text-decoration: underline;
}

.footer-credits .brand-abbreviation {
    font-family: var(--font-mono);
    font-weight: 500;
    color: var(--text-main);
}

/* --- RESPONSIVE LAYOUTS --- */
@media (max-width: 640px) {
    .page-container {
        padding: 2rem 1.25rem;
        gap: 3rem;
    }
    
    .system-header {
        flex-direction: column;
        gap: 1.25rem;
        align-items: flex-start;
        padding-bottom: 1.25rem;
    }
    
    .logo-container {
        width: 160px;
    }
    
    .hero-card {
        align-items: flex-start;
        text-align: left;
    }
    
    .system-meta {
        margin-bottom: 1rem;
    }
    
    .hero-subtitle {
        margin-bottom: 2.5rem;
    }
    
    .input-group {
        flex-direction: column;
        background: transparent;
        border: none;
        padding: 0;
        gap: 0.75rem;
    }
    
    .waitlist-input {
        width: 100%;
        background: rgba(20, 20, 22, 0.6);
        border: 1px solid var(--border-low-glare);
        border-radius: 4px;
    }
    
    .waitlist-input:focus {
        border-color: var(--border-glow);
    }
    
    .waitlist-btn {
        width: 100%;
        border-radius: 4px;
        padding: 0.85rem;
    }
    
    .system-footer {
        align-items: flex-start;
    }
    
    .footer-contact {
        flex-direction: column;
        align-items: flex-start;
        gap: 0.25rem;
    }
    
    .security-note {
        justify-content: flex-start;
    }
}