* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: Arial, Helvetica, sans-serif;
}

body {
    background:
        radial-gradient(circle at 12% 10%, rgba(244, 115, 44, 0.12), transparent 42%),
        radial-gradient(circle at 90% 85%, rgba(28, 28, 28, 0.07), transparent 48%),
        linear-gradient(160deg, #FFF8F4 0%, #FFEEE2 45%, #FCE7D8 100%);
    background-attachment: fixed;
    min-height: 100svh;
    display: flex;
    justify-content: center;
    align-items: center;
    padding: clamp(12px, 4vw, 28px);
    position: relative;
    overflow-x: hidden;
    overflow-y: auto;
}

body::before {
    content: "";
    position: fixed;
    inset: 0;
    background-image:
        repeating-linear-gradient(45deg, rgba(230, 92, 34, 0.04) 0 2px, transparent 2px 40px),
        repeating-linear-gradient(-45deg, rgba(230, 92, 34, 0.04) 0 2px, transparent 2px 40px);
    pointer-events: none;
    z-index: 0;
}

body > * {
    position: relative;
    z-index: 1;
}

.cards-wrapper {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(min(480px, 100%), 1fr));
    align-items: start;
    justify-items: center;
    gap: clamp(24px, 4vw, 44px);
    width: 100%;
    max-width: 1360px;
    margin: 0 auto;
    padding: 6px;
}

.main-container {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: center;
    gap: clamp(18px, 4vw, 34px);
    width: 100%;
    max-width: 660px;
    padding: clamp(16px, 3vw, 24px);
    border-radius: 24px;
    background: linear-gradient(135deg, rgba(255, 255, 255, 0.6), rgba(255, 237, 228, 0.46));
    border: 1px solid rgba(255, 255, 255, 0.75);
    box-shadow: 0 18px 38px -26px rgba(0, 0, 0, 0.48);
    animation: revealUp 0.58s ease both;
    position: relative;
    overflow: hidden;
}

.main-container::after {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, #F4732C, #1C1C1C);
}

.main-container:nth-child(2) {
    animation-delay: 0.08s;
}

.main-container:nth-child(3) {
    animation-delay: 0.16s;
}

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

/* Profile photo */
.image-section {
    display: flex;
    justify-content: center;
    flex: none;
}

.image-section img {
    width: clamp(84px, 11vw, 132px);
    height: clamp(84px, 11vw, 132px);
    border-radius: 50%;
    object-fit: cover;
    border: 5px solid #ffffff;
    outline: 3px solid rgba(230, 92, 34, 0.24);
    outline-offset: 3px;
    box-shadow: 0 12px 28px rgba(0,0,0,0.16), 0 0 0 1px rgba(255,255,255,0.45) inset;
    transition: transform 0.26s ease, box-shadow 0.26s ease;
}

.main-container:hover .image-section img {
    transform: translateY(-2px) scale(1.02);
    box-shadow: 0 18px 32px rgba(0,0,0,0.2), 0 0 0 1px rgba(255,255,255,0.65) inset;
}

/* Card Section — true visiting-card proportions (~1.75:1), fluid at every width */
.card-section {
    display: flex;
    justify-content: center;
    flex: 1 1 240px;
}

.flip-card {
    background: transparent;
    width: 100%;
    max-width: 380px;
    aspect-ratio: 1.75 / 1;
    perspective: 1000px;
    position: relative;
    cursor: pointer;
}

.main-container:hover .flip-card-front,
.main-container:hover .flip-card-back {
    box-shadow: 0 28px 44px -22px rgba(0,0,0,0.6), 0 10px 22px -12px rgba(230, 92, 34, 0.34);
}

.flip-card-inner {
    position: relative;
    width: 100%;
    height: 100%;
    transform: rotateY(0deg);
    transition: transform 0.8s ease-in-out;
    transform-style: preserve-3d;
    -webkit-transform-style: preserve-3d;
    will-change: transform;
}

.flip-card.flipped .flip-card-inner {
    transform: rotateY(180deg);
}

.flip-card-front,
.flip-card-back {
    position: absolute;
    width: 100%;
    backface-visibility: hidden;
    -webkit-backface-visibility: hidden;
    border-radius: 14px;
    overflow: hidden;
    border: 1px solid rgba(255, 255, 255, 0.72);
    box-shadow: 0 22px 36px -24px rgba(0,0,0,0.52), 0 8px 18px -12px rgba(230, 92, 34, 0.28);
}

.flip-card-front img,
.flip-card-back img {
    width: 100%;
    height: 100%;
    object-fit: contain;
    background: #ffffff;
}

.flip-card-back {
    transform: rotateY(180deg) translateZ(0);
}

/* Flip Button */
.flip-btn {
    position: absolute;
    bottom: clamp(8px, 2vw, 14px);
    right: clamp(8px, 2vw, 14px);
    padding: clamp(6px, 1.4vw, 9px) clamp(10px, 2.4vw, 15px);
    background: linear-gradient(145deg, #ff6f37, #ff5722);
    border: 1px solid rgba(255,255,255,0.32);
    border-radius: 999px;
    color: #fff;
    cursor: pointer;
    font-size: clamp(10px, 1.8vw, 13px);
    letter-spacing: 0.2px;
    box-shadow: 0 8px 18px rgba(0,0,0,0.24);
    transition: transform 0.2s ease, box-shadow 0.2s ease, background 0.2s ease;
}

.flip-btn:hover {
    background: linear-gradient(145deg, #ff7b47, #f4511e);
    transform: translateY(-1px);
    box-shadow: 0 12px 22px rgba(0,0,0,0.28);
}

.flip-btn:active {
    transform: translateY(1px);
    box-shadow: 0 6px 14px rgba(0,0,0,0.2);
}

/* Below ~360px: photo above card instead of side-by-side */
@media (max-width: 360px) {
    .main-container {
        flex-direction: column;
    }

    .flip-card {
        max-width: 260px;
    }
}

@media (prefers-reduced-motion: reduce) {
    .main-container {
        animation: none;
    }

    .flip-btn,
    .image-section img,
    .flip-card {
        transition: none;
    }
}