/* ==========================================================================
   DAPTAR — BRAND DESIGN SYSTEM & STYLESHEET
   ========================================================================== */

/* --- Custom CSS Variables --- */
:root {
    --color-black: #111111;
    --color-off-white: #FAF9F6;
    --color-charcoal: #3A3A3A;
    --color-warm-beige: #E9E2D5;
    
    /* Derived Tones */
    --color-black-pure: #0B0B0B;
    --color-charcoal-dark: #1E1E1E;
    --color-charcoal-light: #2A2A2A;
    --color-warm-beige-light: #F4EFE6;
    --color-warm-beige-accent: #D7CCA8;
    --color-text-muted: rgba(250, 249, 246, 0.65);
    --color-text-dim: rgba(250, 249, 246, 0.4);
    --color-border: rgba(233, 226, 213, 0.15);
    --color-border-glow: rgba(233, 226, 213, 0.35);
    
    /* Typography */
    --font-heading: 'Outfit', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    --font-body: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    
    /* Layout Tokens */
    --container-max: 1240px;
    --radius-sm: 8px;
    --radius-md: 14px;
    --radius-lg: 24px;
    --radius-full: 9999px;
    
    /* Transitions */
    --transition-fast: 0.2s cubic-bezier(0.16, 1, 0.3, 1);
    --transition-smooth: 0.4s cubic-bezier(0.16, 1, 0.3, 1);
    --transition-slow: 0.8s cubic-bezier(0.16, 1, 0.3, 1);
}

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

html, body {
    width: 100%;
    min-height: 100vh;
    background-color: var(--color-black);
    color: var(--color-off-white);
    font-family: var(--font-body);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    overflow-x: hidden;
    position: relative;
}

/* Background Canvas */
#bg-canvas {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    z-index: 0;
    pointer-events: none;
}

/* Subtle Organic Noise Texture */
.noise-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    z-index: 1;
    pointer-events: none;
    opacity: 0.035;
    background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 200 200' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noiseFilter'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.8' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noiseFilter)'/%3E%3C/svg%3E");
}

/* Cursor Spotlight Effect */
.cursor-spotlight {
    position: fixed;
    top: 0;
    left: 0;
    width: 600px;
    height: 600px;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(233, 226, 213, 0.04) 0%, rgba(17, 17, 17, 0) 70%);
    transform: translate(-50%, -50%);
    pointer-events: none;
    z-index: 2;
    transition: opacity 0.5s ease;
}

/* Main Container */
.page-container {
    position: relative;
    z-index: 3;
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 2.5rem 2rem;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
}

/* --- Header Section --- */
.site-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    width: 100%;
    padding-bottom: 2rem;
}

.logo-container {
    display: flex;
    align-items: center;
    gap: 0.85rem;
    cursor: default;
}

.brand-logo-icon {
    transition: transform var(--transition-fast);
}

.logo-container:hover .brand-logo-icon {
    transform: rotate(5deg) scale(1.04);
}

.brand-wordmark {
    font-family: var(--font-heading);
    font-size: 1.35rem;
    font-weight: 700;
    letter-spacing: 0.25em;
    color: var(--color-off-white);
    text-transform: uppercase;
}

.header-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.4rem 0.9rem;
    border-radius: var(--radius-full);
    background: rgba(58, 58, 58, 0.25);
    border: 1px solid var(--color-border);
    font-size: 0.75rem;
    font-weight: 600;
    letter-spacing: 0.12em;
    color: var(--color-warm-beige);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
}

.status-dot {
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background-color: var(--color-warm-beige);
    box-shadow: 0 0 10px var(--color-warm-beige);
    animation: pulse-dot 2s infinite cubic-bezier(0.4, 0, 0.6, 1);
}

@keyframes pulse-dot {
    0%, 100% { opacity: 1; transform: scale(1); }
    50% { opacity: 0.4; transform: scale(0.85); }
}

/* --- Hero Section --- */
.hero-section {
    display: grid;
    grid-template-columns: 1.15fr 0.85fr;
    gap: 4rem;
    align-items: center;
    padding: 3rem 0;
}

.hero-content {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
}

/* Eyebrow Pill */
.eyebrow-pill {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.45rem 1rem;
    border-radius: var(--radius-full);
    background: rgba(233, 226, 213, 0.06);
    border: 1px solid var(--color-border);
    font-size: 0.75rem;
    font-weight: 600;
    letter-spacing: 0.15em;
    color: var(--color-warm-beige);
    margin-bottom: 1.75rem;
    backdrop-filter: blur(8px);
}

.eyebrow-spark {
    width: 4px;
    height: 4px;
    border-radius: 50%;
    background: var(--color-warm-beige);
}

/* Headline & Subheadline */
.hero-headline {
    font-family: var(--font-heading);
    font-size: clamp(2.75rem, 5.2vw, 4.5rem);
    font-weight: 700;
    line-height: 1.08;
    letter-spacing: -0.02em;
    color: var(--color-off-white);
    margin-bottom: 1.5rem;
    background: linear-gradient(180deg, #FFFFFF 0%, #E9E2D5 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.hero-subheadline {
    font-size: clamp(1.05rem, 1.35vw, 1.25rem);
    font-weight: 300;
    line-height: 1.6;
    color: var(--color-text-muted);
    margin-bottom: 2.25rem;
    max-width: 580px;
}

/* Feature Pills */
.feature-pills {
    display: flex;
    align-items: center;
    gap: 0.85rem;
    margin-bottom: 2.5rem;
    flex-wrap: wrap;
}

.pill-item {
    display: flex;
    align-items: center;
    gap: 0.45rem;
    font-size: 0.82rem;
    font-weight: 500;
    color: var(--color-warm-beige);
    opacity: 0.85;
}

.pill-divider {
    width: 4px;
    height: 4px;
    border-radius: 50%;
    background: var(--color-charcoal);
}

/* Subscribe Form Wrapper */
.subscribe-wrapper {
    width: 100%;
    max-width: 500px;
}

.subscribe-form {
    width: 100%;
    margin-bottom: 1.25rem;
}

.input-group {
    position: relative;
    display: flex;
    align-items: center;
    background: rgba(42, 42, 42, 0.4);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-full);
    padding: 0.4rem 0.4rem 0.4rem 1.25rem;
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.input-group:focus-within {
    border-color: var(--color-warm-beige);
    box-shadow: 0 0 25px rgba(233, 226, 213, 0.12);
}

.input-icon {
    color: var(--color-text-dim);
    margin-right: 0.65rem;
    flex-shrink: 0;
    transition: color var(--transition-fast);
}

.input-group:focus-within .input-icon {
    color: var(--color-warm-beige);
}

.email-input {
    flex: 1;
    background: transparent;
    border: none;
    outline: none;
    color: var(--color-off-white);
    font-family: var(--font-body);
    font-size: 0.95rem;
    font-weight: 400;
    width: 100%;
}

.email-input::placeholder {
    color: var(--color-text-dim);
}

.submit-btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    background: var(--color-warm-beige);
    color: var(--color-black);
    border: none;
    outline: none;
    border-radius: var(--radius-full);
    padding: 0.85rem 1.6rem;
    font-family: var(--font-body);
    font-size: 0.9rem;
    font-weight: 600;
    cursor: pointer;
    white-space: nowrap;
    transition: background-color var(--transition-fast), transform var(--transition-fast), box-shadow var(--transition-fast);
}

.submit-btn:hover {
    background: var(--color-warm-beige-light);
    transform: translateY(-1px);
    box-shadow: 0 6px 20px rgba(233, 226, 213, 0.25);
}

.submit-btn:active {
    transform: translateY(0);
}

.btn-arrow {
    transition: transform var(--transition-fast);
}

.submit-btn:hover .btn-arrow {
    transform: translateX(3px);
}

/* Feedback message */
.form-feedback {
    font-size: 0.85rem;
    margin-top: 0.6rem;
    padding-left: 1rem;
    min-height: 1.25rem;
    transition: all var(--transition-fast);
}

.form-feedback.success {
    color: var(--color-warm-beige);
    font-weight: 500;
}

.form-feedback.error {
    color: #FF6B6B;
    font-weight: 500;
}

/* Inquiry Note */
.inquiry-note {
    display: flex;
    align-items: center;
    gap: 0.55rem;
    font-size: 0.85rem;
    color: var(--color-text-muted);
}

.inquiry-note svg {
    color: var(--color-warm-beige);
    opacity: 0.9;
    flex-shrink: 0;
}

/* --- Hero Visual Card --- */
.hero-visual {
    position: relative;
    width: 100%;
    max-width: 440px;
    justify-self: center;
    perspective: 1000px;
}

.card-inner {
    position: relative;
    border-radius: var(--radius-lg);
    background: linear-gradient(145deg, rgba(58, 58, 58, 0.3) 0%, rgba(17, 17, 17, 0.6) 100%);
    border: 1px solid var(--color-border);
    padding: 1.25rem;
    overflow: hidden;
    box-shadow: 0 30px 60px rgba(0, 0, 0, 0.6);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    transition: transform var(--transition-smooth), border-color var(--transition-smooth), box-shadow var(--transition-smooth);
}

.hero-visual:hover .card-inner {
    border-color: var(--color-border-glow);
    box-shadow: 0 40px 80px rgba(0, 0, 0, 0.8), 0 0 40px rgba(233, 226, 213, 0.08);
}

.card-badge {
    position: absolute;
    top: 2rem;
    left: 2rem;
    z-index: 3;
    padding: 0.35rem 0.75rem;
    border-radius: var(--radius-full);
    background: rgba(17, 17, 17, 0.75);
    border: 1px solid var(--color-border);
    font-size: 0.68rem;
    font-weight: 700;
    letter-spacing: 0.15em;
    color: var(--color-warm-beige);
    backdrop-filter: blur(8px);
}

.backpack-img {
    width: 100%;
    height: auto;
    aspect-ratio: 1 / 1;
    object-fit: cover;
    border-radius: var(--radius-md);
    display: block;
    filter: brightness(0.95) contrast(1.05);
    transition: transform var(--transition-smooth), filter var(--transition-smooth);
}

.hero-visual:hover .backpack-img {
    transform: scale(1.03);
    filter: brightness(1.02) contrast(1.08);
}

.card-overlay {
    position: absolute;
    bottom: 1.25rem;
    left: 1.25rem;
    right: 1.25rem;
    padding: 1.25rem;
    border-radius: 0 0 var(--radius-md) var(--radius-md);
    background: linear-gradient(0deg, rgba(17, 17, 17, 0.9) 0%, rgba(17, 17, 17, 0) 100%);
    display: flex;
    align-items: flex-end;
}

.card-caption {
    display: flex;
    flex-direction: column;
    gap: 0.2rem;
}

.caption-title {
    font-family: var(--font-heading);
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--color-off-white);
}

.caption-sub {
    font-size: 0.75rem;
    letter-spacing: 0.1em;
    color: var(--color-warm-beige);
    opacity: 0.8;
}

.card-glow {
    position: absolute;
    top: 50%;
    left: 50%;
    width: 80%;
    height: 80%;
    background: radial-gradient(circle, rgba(233, 226, 213, 0.12) 0%, rgba(0, 0, 0, 0) 70%);
    transform: translate(-50%, -50%);
    z-index: -1;
    border-radius: 50%;
    filter: blur(40px);
    pointer-events: none;
    transition: opacity var(--transition-smooth);
}

/* --- Footer Section --- */
.site-footer {
    display: flex;
    align-items: center;
    justify-content: space-between;
    width: 100%;
    padding-top: 2.5rem;
    border-top: 1px solid rgba(233, 226, 213, 0.08);
    margin-top: 2rem;
}

.copyright-text {
    font-size: 0.85rem;
    color: var(--color-text-dim);
    letter-spacing: 0.02em;
}

.footer-contact {
    display: flex;
    align-items: center;
}

.telegram-contact-btn {
    display: inline-flex;
    align-items: center;
    gap: 0.6rem;
    padding: 0.55rem 1.1rem;
    border-radius: var(--radius-full);
    background: rgba(58, 58, 58, 0.25);
    border: 1px solid var(--color-border);
    color: var(--color-off-white);
    text-decoration: none;
    font-size: 0.85rem;
    transition: all var(--transition-fast);
    backdrop-filter: blur(10px);
}

.telegram-contact-btn:hover {
    background: rgba(233, 226, 213, 0.12);
    border-color: var(--color-warm-beige);
    color: var(--color-warm-beige);
    transform: translateY(-2px);
    box-shadow: 0 4px 15px rgba(233, 226, 213, 0.1);
}

.telegram-icon {
    color: #29B6F6;
    transition: transform var(--transition-fast);
}

.telegram-contact-btn:hover .telegram-icon {
    transform: scale(1.1);
}

.telegram-contact-btn strong {
    color: var(--color-warm-beige);
    letter-spacing: 0.03em;
}

/* --- Animations --- */
.fade-in-down {
    animation: fadeInDown 0.8s cubic-bezier(0.16, 1, 0.3, 1) forwards;
}

.fade-in-up {
    opacity: 0;
    animation: fadeInUp 0.9s cubic-bezier(0.16, 1, 0.3, 1) forwards;
    animation-delay: calc(var(--delay, 1) * 0.12s);
}

@keyframes fadeInDown {
    from { opacity: 0; transform: translateY(-20px); }
    to { opacity: 1; transform: translateY(0); }
}

@keyframes fadeInUp {
    from { opacity: 0; transform: translateY(24px); }
    to { opacity: 1; transform: translateY(0); }
}

/* --- Responsive Layout Rules --- */
@media (max-width: 992px) {
    .hero-section {
        grid-template-columns: 1fr;
        gap: 3.5rem;
        text-align: center;
    }

    .hero-content {
        align-items: center;
    }

    .hero-subheadline {
        max-width: 100%;
    }

    .feature-pills {
        justify-content: center;
    }

    .subscribe-wrapper {
        max-width: 460px;
    }

    .early-access-note {
        justify-content: center;
    }
}

@media (max-width: 640px) {
    .page-container {
        padding: 1.75rem 1.25rem;
    }

    .brand-wordmark {
        font-size: 1.15rem;
        letter-spacing: 0.2em;
    }

    .header-badge {
        padding: 0.35rem 0.75rem;
        font-size: 0.68rem;
    }

    .hero-headline {
        font-size: 2.25rem;
    }

    .hero-subheadline {
        font-size: 1rem;
    }

    .input-group {
        flex-direction: column;
        align-items: stretch;
        border-radius: var(--radius-md);
        padding: 0.85rem;
        gap: 0.75rem;
        background: rgba(30, 30, 30, 0.7);
    }

    .input-icon {
        display: none;
    }

    .email-input {
        text-align: center;
        padding: 0.4rem;
    }

    .submit-btn {
        justify-content: center;
        width: 100%;
        padding: 0.95rem;
        border-radius: var(--radius-sm);
    }

    .site-footer {
        flex-direction: column-reverse;
        gap: 1.25rem;
        text-align: center;
    }

    .desktop-only {
        display: none;
    }
}