/* style.css */
* {
    box-sizing: border-box;
}

body {
    margin: 0;
    min-height: 100vh;
    position: relative;
    background: url('background.jpeg') no-repeat center center/cover;
}

/* Logo centered in the area above the button */
.site-header {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 50%;
    display: flex;
    justify-content: center;
    align-items: center;
}

.header-logo {
    width: clamp(280px, 80vw, 800px);
    height: auto;
    object-fit: contain;
}

/* Button positioned above center */
.button-wrapper {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
}

.my-button {
    background: none;
    border: none;
    padding: 0;
    cursor: pointer;
    position: relative;
    overflow: hidden;
    display: inline-block;
    width: clamp(280px, 65vw, 560px);

    animation: scalePulse 2s ease-in-out infinite;
}

.my-button img {
    display: block;
    width: 100%;
    height: auto;
}

.button-label {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    font-family: 'SN Pro', sans-serif;
    font-weight: 900;
    font-size: clamp(0.65rem, 3vw, 1.3rem);
    letter-spacing: 0.1em;
    color: #fff;
    pointer-events: none;
    user-select: none;
    white-space: nowrap;
    width: 90%;
    text-align: center;
}

/* Shine overlay */
.my-button::after {
    content: '';
    position: absolute;
    top: 0;
    left: -75%;
    width: 50%;
    height: 100%;
    background: linear-gradient(
        120deg,
        rgba(255,255,255,0) 0%,
        rgba(255,255,255,0.55) 50%,
        rgba(255,255,255,0) 100%
    );
    /* Shine pulse every 2s — active for first 35% of the cycle */
    animation: shine 2s ease-in-out infinite;
}

@keyframes scalePulse {
    0%   { transform: scale(1); }
    50%  { transform: scale(1.07); }
    100% { transform: scale(1); }
}

@keyframes shine {
    0%   { left: -75%; }
    35%  { left: 125%; }
    100% { left: 125%; }
}

@keyframes marqueeTrack {
    0%   { transform: translate(144vw, -101vw); }
    100% { transform: translate(-144vw, 101vw); }
}

@keyframes marqueeLoop {
    0%   { transform: translateX(0%); }
    100% { transform: translateX(-33.333%); }
}

@keyframes waveIn {
    0%   { opacity: 0; transform: translate(-50%, -50%) scaleY(0.5); }
    100% { opacity: 1; transform: translate(-50%, -50%) scaleY(1); }
}

@keyframes waveUndulate {
    0%   { transform: translate(-50%, -50%) scaleY(1)    skewX(0deg); }
    100% { transform: translate(-50%, -50%) scaleY(1.25) skewX(4deg); }
}