/* Premium CTA Button Stylesheet
 * Crafted with GPU-accelerated animations & Premium UI transitions
 * Inspired by Vercel, Linear, and Apple design languages
 */

:root {
    --premium-cta-bg: #08162D;
    --premium-cta-bg-hover-start: #08162D;
    --premium-cta-bg-hover-end: #132B55;
    --premium-cta-accent: #FF9D00;
    --premium-cta-text: #FFFFFF;
    
    /* Animation Curve & Speeds (GPU safe) */
    --premium-cta-cubic: cubic-bezier(0.22, 1, 0.36, 1);
    --premium-cta-duration: 0.45s;
    --premium-cta-transition: all var(--premium-cta-duration) var(--premium-cta-cubic);
    
    /* Elegant Shadow Physics */
    --premium-cta-shadow: 0 18px 45px rgba(8, 22, 45, 0.22);
    --premium-cta-shadow-hover: 0 28px 60px rgba(255, 157, 0, 0.30);
    --premium-cta-shadow-focus: 0 0 0 4px rgba(255, 157, 0, 0.4);
}

.premium-cta-btn {
    position: relative;
    display: inline-flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    height: 48px;
    padding: 0 28px;
    border-radius: 2px; /* Minimum border-radius */
    background-color: var(--premium-cta-bg);
    color: var(--premium-cta-text);
    font-family: 'Poppins', sans-serif;
    font-weight: 600;
    font-size: 16px;
    letter-spacing: 0.2px;
    text-decoration: none;
    border: 1px solid rgba(255, 255, 255, 0.04);
    box-shadow: var(--premium-cta-shadow);
    transition: var(--premium-cta-transition);
    transform: scale(1) translate3d(0, 0, 0);
    will-change: transform, box-shadow;
    cursor: pointer;
    z-index: 10;
    overflow: hidden;
    user-select: none;
    outline: none;
}

/* Background gradient layer (Fades in seamlessly to avoid rough transitions) */
.premium-cta-btn .cta-bg-hover {
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, var(--premium-cta-bg-hover-start) 0%, var(--premium-cta-bg-hover-end) 100%);
    opacity: 0;
    transition: opacity var(--premium-cta-duration) var(--premium-cta-cubic);
    z-index: -2;
    pointer-events: none;
}

/* Spotlight cursor-following gradient layer (Stripe/Linear style) */
.premium-cta-btn .cta-spotlight {
    position: absolute;
    inset: 0;
    background: radial-gradient(100px circle at var(--mouse-x, 50%) var(--mouse-y, 50%), rgba(255, 157, 0, 0.15), transparent 100%);
    opacity: 0;
    transition: opacity 0.35s var(--premium-cta-cubic);
    pointer-events: none;
    z-index: -1;
}

/* Subtle outer atmospheric glow */
.premium-cta-btn .cta-glow {
    position: absolute;
    inset: -12px;
    background: radial-gradient(circle, rgba(255, 157, 0, 0.3) 0%, rgba(8, 22, 45, 0) 70%);
    opacity: 0;
    mix-blend-mode: screen;
    transition: opacity var(--premium-cta-duration) var(--premium-cta-cubic);
    z-index: -3;
    pointer-events: none;
}

/* Icon - Document/File details (Rotates gracefully) */
.premium-cta-btn .cta-icon-doc {
    color: rgba(255, 255, 255, 0.75);
    transition: transform var(--premium-cta-duration) var(--premium-cta-cubic), color var(--premium-cta-duration) var(--premium-cta-cubic);
    transform-origin: center center;
    will-change: transform;
    flex-shrink: 0;
}

/* Core Label text */
.premium-cta-btn .cta-text {
    position: relative;
    z-index: 2;
    transition: color var(--premium-cta-duration) var(--premium-cta-cubic);
}

/* Accent element (Orange Circle) */
.premium-cta-btn .cta-circle-accent {
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
    width: 28px;
    height: 28px;
    border-radius: 999px;
    background-color: var(--premium-cta-accent);
    transition: width var(--premium-cta-duration) var(--premium-cta-cubic), background-color var(--premium-cta-duration) var(--premium-cta-cubic);
    will-change: width;
    overflow: hidden;
    flex-shrink: 0;
}

/* Accent Circle Arrow Icon */
.premium-cta-btn .cta-icon-arrow {
    color: #FFFFFF;
    transition: transform var(--premium-cta-duration) var(--premium-cta-cubic);
    transform-origin: center center;
    will-change: transform;
}

/* =========================================
 * HOVER MUTATIONS (GPU-optimized & Fluid)
 * ========================================= */
.premium-cta-btn:hover {
    background-color: var(--premium-cta-bg-hover-end);
    border-color: rgba(255, 157, 0, 0.4);
    box-shadow: 0 10px 25px rgba(255, 157, 0, 0.12);
}

.premium-cta-btn:hover .cta-icon-arrow {
    transform: translate3d(3px, 0, 0);
}

.premium-cta-btn:hover .cta-icon-doc {
    color: #FFFFFF;
    transform: scale(1.05);
}

/* =========================================
 * ACTIVE & CLICK PHYSICS
 * ========================================= */
.premium-cta-btn:active {
    transform: scale(0.98) translate3d(0, 1px, 0);
    box-shadow: 0 10px 25px rgba(8, 22, 45, 0.15);
    transition: transform 0.1s var(--premium-cta-cubic);
}

/* =========================================
 * ACCESSIBILITY & FOCUS SYSTEMS
 * ========================================= */
.premium-cta-btn:focus-visible {
    box-shadow: var(--premium-cta-shadow-hover), var(--premium-cta-shadow-focus);
}

/* =========================================
 * DISABLED / STATIC STATES
 * ========================================= */
.premium-cta-btn:disabled,
.premium-cta-btn.disabled {
    opacity: 0.55;
    cursor: not-allowed;
    pointer-events: none;
    box-shadow: none;
    transform: none;
}

/* =========================================
 * RESPONSIVE COMPACT MEDIA QUERIES
 * ========================================= */
@media (max-width: 1024px) {
    .premium-cta-btn {
        height: 44px;
        padding: 0 22px;
        font-size: 14px;
        gap: 12px;
    }
    .premium-cta-btn .cta-circle-accent {
        width: 24px;
        height: 24px;
    }
}