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

*:focus-visible {
    outline: 2px solid #ffffff;
    outline-offset: 4px;
}

:root {
    --background: #050505;
    --background-soft: #0b0b0b;
    --foreground: #f5f5f5;
    --muted: #a0a0a0;
    --border: rgba(255, 255, 255, 0.1);
    --glow: rgba(255, 255, 255, 0.06);
    --shadow: rgba(0, 0, 0, 0.55);
    --transition: all 0.35s cubic-bezier(0.16, 1, 0.3, 1);
}

body {
    font-family: 'Inter', 'Segoe UI', system-ui, sans-serif;
    background: radial-gradient(circle at top, #0b0b0b, var(--background));
    color: var(--foreground);
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: clamp(3rem, 8vw, 5rem) clamp(1.5rem, 5vw, 4rem);
    line-height: 1.6;
    position: relative;
    overflow: hidden;
}

::selection {
    background: rgba(255, 255, 255, 0.2);
    color: var(--foreground);
}

.backdrop {
    position: fixed;
    inset: 0;
    overflow: hidden;
    z-index: 0;
}

.glow {
    position: absolute;
    width: 60vw;
    height: 60vw;
    max-width: 700px;
    max-height: 700px;
    background: radial-gradient(circle, rgba(255, 255, 255, 0.12) 0%, transparent 65%);
    filter: blur(45px);
    opacity: 0.35;
}

.glow-left {
    top: -15%;
    left: -20%;
}

.glow-right {
    bottom: -25%;
    right: -10%;
}

.grain {
    position: absolute;
    inset: -200%;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 120 120'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='1.1' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='120' height='120' filter='url(%23n)' opacity='0.14'/%3E%3C/svg%3E");
    animation: grainShift 12s steps(10) infinite;
    mix-blend-mode: soft-light;
    pointer-events: none;
}

@keyframes grainShift {
    0%, 100% { transform: translate3d(0, 0, 0); }
    50% { transform: translate3d(-5%, 4%, 0); }
}

.wrapper {
    position: relative;
    width: 100%;
    max-width: 760px;
    z-index: 1;
}

.hero {
    background: rgba(10, 10, 10, 0.75);
    border: 1px solid var(--border);
    border-radius: 28px;
    padding: clamp(2.5rem, 5vw, 3.75rem);
    box-shadow: 0 28px 60px var(--shadow);
    display: flex;
    flex-direction: column;
    gap: clamp(1.2rem, 2vw, 2.2rem);
    backdrop-filter: blur(24px);
}

.eyebrow {
    text-transform: uppercase;
    letter-spacing: 0.32em;
    font-size: 0.75rem;
    color: var(--muted);
}

.title {
    font-size: clamp(2.25rem, 5vw, 3.5rem);
    font-weight: 700;
    letter-spacing: -0.01em;
}

.lead {
    color: rgba(245, 245, 245, 0.75);
    font-size: clamp(1.05rem, 2.2vw, 1.2rem);
    max-width: 54ch;
}

.cta {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    gap: 0.85rem;
}

.cta-btn {
    position: relative;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.65rem;
    padding: 1.1rem 2.8rem;
    border-radius: 999px;
    border: 1px solid rgba(255, 255, 255, 0.25);
    background: linear-gradient(145deg, #0e0e0e, #000);
    color: var(--foreground);
    font-size: 1.05rem;
    font-weight: 600;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    cursor: pointer;
    transition: var(--transition);
    box-shadow: 0 18px 40px rgba(0, 0, 0, 0.65), 0 0 0 rgba(255, 255, 255, 0.35);
    overflow: hidden;
}

.cta-btn::before {
    content: '';
    position: absolute;
    inset: 0;
    background: radial-gradient(circle at top, rgba(255, 255, 255, 0.12), transparent 60%);
    opacity: 0;
    transition: var(--transition);
}

.cta-btn::after {
    content: '';
    position: absolute;
    top: -60%;
    left: -50%;
    width: 40%;
    height: 200%;
    background: linear-gradient(120deg, transparent 0%, rgba(255, 255, 255, 0.35) 45%, transparent 80%);
    transform: translateX(-100%) skewX(-15deg);
    transition: transform 0.7s ease;
}

.cta-btn:hover {
    transform: translateY(-3px);
    box-shadow: 0 22px 60px rgba(0, 0, 0, 0.7), 0 0 28px rgba(255, 255, 255, 0.22);
}

.cta-btn:hover::before {
    opacity: 1;
}

.cta-btn:hover::after {
    transform: translateX(180%) skewX(-15deg);
}

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

.cta-btn.loading {
    cursor: progress;
    box-shadow: 0 18px 40px rgba(0, 0, 0, 0.45), 0 0 18px rgba(255, 255, 255, 0.18);
}

.cta-btn .status {
    display: none;
    font-weight: 500;
    letter-spacing: 0.12em;
}

.cta-btn.loading .label {
    opacity: 0;
    transform: translateY(6px);
}

.cta-btn.loading .status {
    display: inline-flex;
    animation: pulse 1.4s ease-in-out infinite;
}

@keyframes pulse {
    0%, 100% { opacity: 0.45; }
    50% { opacity: 1; }
}

.meta {
    color: var(--muted);
    font-size: 0.85rem;
    letter-spacing: 0.18em;
    text-transform: uppercase;
}

.warning {
    margin-top: 1rem;
    font-size: 0.95rem;
    color: rgba(245, 245, 245, 0.6);
    border-top: 1px solid var(--border);
    padding-top: 1.4rem;
}

.footer {
    margin-top: clamp(2.5rem, 5vw, 3.5rem);
    text-align: center;
    color: var(--muted);
    font-size: 0.85rem;
    letter-spacing: 0.08em;
}

@media (max-width: 640px) {
    body {
        padding: clamp(2rem, 8vw, 3rem) 1.25rem;
    }

    .hero {
        padding: clamp(2rem, 6vw, 2.8rem);
    }

    .cta {
        align-items: stretch;
    }

    .cta-btn {
        width: 100%;
        justify-content: center;
    }
}

@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
        scroll-behavior: auto !important;
    }
}