:root {
    --primary: #00adb5;
    --primary-dark: #009da8;
    --bg-main: #1d274a;
    --card-bg: rgba(255, 255, 255, 0.95);
    --text-dark: #222;
    --text-light: #f0f0f0;
    --shadow: 0 12px 40px rgba(0, 173, 181, 0.2);
    --shadow-hover: 0 20px 60px rgba(0, 173, 181, 0.35);
}

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

body {
    font-family: 'Inter', sans-serif;
    color: #484848;
    line-height: 1.7;
    background-image: linear-gradient(58deg, #aac3cc, #9ddfdb, #9ddfbd);
    background-color: #fff;
    overflow-x: hidden;
}

p, ul li {
    font-size: 1rem; /* Unified font size for paragraphs and list items */
}

.pilot-container {
    max-width: 1300px;
    margin: 0 auto;
    padding: 0 30px;
}

.pilot-header {
    text-align: center;
    padding: 100px 0 80px;
    position: relative;
}

/* .pilot-header::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 800px;
    height: 800px;
    z-index: -1;
    background: radial-gradient(circle, rgba(0, 173, 181, 0.12), transparent 65%);
    transform: translate(-50%, -50%);
    animation: breathe 15s ease-in-out infinite;
    border-radius: 50%;
} */

h1 {
    font-size: 4.2rem;
    font-weight: 700;
    color: var(--primary);
    position: relative;
    z-index: 0;
    animation: titleFloat 2s ease-out;
}

.pilot-intro {
    background: var(--card-bg);
    color: var(--text-dark);
    padding: 60px;
    border-radius: 28px;
    margin-bottom: 100px;
    box-shadow: var(--shadow);
    position: relative;
    overflow: hidden;
    backdrop-filter: blur(10px);
    animation: fadeInUp 1.2s ease-out 0.4s both;
}

.pilot-intro p {
    font-size: 1.25rem;
    max-width: 1000px;
    margin: 0 auto;
    text-align: center;
}

.pilot-section-title {
    font-size: 2.8rem;
    text-align: center;
    margin: 80px 0 60px;
    color: var(--primary);
    position: relative;
    animation: fadeInUp 1s ease-out both;
}

.pilot-section-title::before {
    content: '';
    font-size: 1.4em;
    margin-right: 15px;
}

.pilot-cancer-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 35px;
    margin-bottom: 100px;
}

.pilot-cancer-card {
    background: var(--card-bg);
    border-radius: 20px;
    overflow: hidden;
    box-shadow: var(--shadow);
    transition: all 0.6s cubic-bezier(0.23, 1, 0.32, 1);
    opacity: 0;
    transform: translateY(50px) scale(0.92);
    position: relative;
}

.pilot-cancer-card:nth-child(1) {
    animation: cardPop 0.8s ease-out 0.6s forwards;
}

.pilot-cancer-card:nth-child(2) {
    animation: cardPop 0.8s ease-out 0.7s forwards;
}

.pilot-cancer-card:nth-child(3) {
    animation: cardPop 0.8s ease-out 0.8s forwards;
}

.pilot-cancer-card:nth-child(4) {
    animation: cardPop 0.8s ease-out 0.9s forwards;
}

.pilot-cancer-card:nth-child(5) {
    animation: cardPop 0.8s ease-out 1s forwards;
}

.pilot-cancer-card:nth-child(6) {
    animation: cardPop 0.8s ease-out 1.1s forwards;
}

.pilot-cancer-card:nth-child(7) {
    animation: cardPop 0.8s ease-out 1.2s forwards;
}

.pilot-cancer-card:hover {
    transform: translateY(-15px) scale(1.03);
    box-shadow: var(--shadow-hover);
}

.pilot-cancer-header {
    background: linear-gradient(135deg, var(--primary), var(--primary-dark));
    color: white;
    padding: 30px;
    text-align: center;
    font-size: 1.4rem;
    font-weight: 600;
    position: relative;
    overflow: hidden;
}

.pilot-cancer-header::after {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: linear-gradient(45deg, transparent, rgba(255, 255, 255, 0.15), transparent);
    animation: shine 6s linear infinite;
}

.pilot-cancer-content {
    padding: 35px 30px;
    color: var(--text-dark);
    font-size: 1.05rem;
}

.pilot-demonstrate-list {
    display: flex;
    flex-direction: column;
    gap: 40px;
    margin-bottom: 100px;
}

.pilot-demo-item {
    background: var(--card-bg);
    border-radius: 20px;
    padding: 40px;
    box-shadow: var(--shadow);
    opacity: 0;
    transform: translateX(-60px);
    animation: slideInLeft 0.8s ease-out forwards;
}

.pilot-demo-item:nth-child(1) {
    animation-delay: 0.4s;
}

.pilot-demo-item:nth-child(2) {
    animation-delay: 0.6s;
}

.pilot-demo-item:nth-child(3) {
    animation-delay: 0.8s;
}

.pilot-demo-item:nth-child(4) {
    animation-delay: 1s;
}

.pilot-demo-item:hover {
    transform: translateX(10px);
    box-shadow: var(--shadow-hover);
}

.pilot-demo-num {
    display: inline-block;
    width: 60px;
    height: 60px;
    background: var(--primary);
    color: white;
    border-radius: 50%;
    text-align: center;
    line-height: 60px;
    font-size: 1.8rem;
    font-weight: 700;
    margin-bottom: 20px;
    box-shadow: 0 8px 20px rgba(0, 173, 181, 0.3);
}

.pilot-demo-title {
    font-size: 1.6rem;
    color: var(--primary);
    margin-bottom: 20px;
    font-weight: 600;
}

.pilot-demo-content ul {
    list-style: none;
    padding-left: 0;
}

.pilot-demo-content p {
    margin-bottom: 15px;
    font-size: 1.25rem;
    font-weight: 500;
}

.pilot-demo-content li {
    position: relative;
    padding-left: 30px;
    margin-bottom: 15px;
    font-size: 1.25rem;
    color: var(--text-dark);
}

.pilot-demo-content li::before {
    content: '●';
    position: absolute;
    left: 0;
    color: var(--primary);
    font-weight: bold;
    font-size: 1.25rem;
}


@keyframes titleFloat {

    0%,
    100% {
        transform: translateY(0);
    }

    50% {
        transform: translateY(-15px);
    }
}

@keyframes breathe {

    0%,
    100% {
        transform: translate(-50%, -50%) scale(1);
    }

    50% {
        transform: translate(-50%, -50%) scale(1.15);
    }
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(40px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes cardPop {
    to {
        opacity: 1;
        transform: translateY(0) scale(1);
    }
}

@keyframes slideInLeft {
    from {
        opacity: 0;
        transform: translateX(-60px);
    }

    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes shine {
    0% {
        transform: translateX(-100%) translateY(-100%) rotate(30deg);
    }

    100% {
        transform: translateX(100%) translateY(100%) rotate(30deg);
    }
}

/* Tablet */
@media (max-width: 1024px) {
    .pilot-cancer-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 30px;
    }

    .pilot-demo-item {
        padding: 35px;
    }
}

/* Mobile */
@media (max-width: 768px) {
    .pilot-container {
        padding: 0 15px;
    }

    .pilot-header {
        padding: 70px 0 50px;
    }

    h1 {
        font-size: 3rem;
    }

    .pilot-intro {
        padding: 40px 25px;
        margin-bottom: 70px;
        border-radius: 20px;
    }

    .pilot-intro p {
        font-size: 1.1rem;
    }

    .pilot-section-title {
        font-size: 2.2rem;
        margin: 60px 0 40px;
    }

    .pilot-cancer-grid {
        grid-template-columns: 1fr;
        gap: 30px;
    }

    .pilot-cancer-header {
        padding: 25px;
        font-size: 1.3rem;
    }

    .pilot-cancer-content {
        padding: 30px 25px;
        font-size: 1rem;
    }

    .pilot-demonstrate-list {
        gap: 35px;
    }

    .pilot-demo-item {
        padding: 30px 25px;
    }

    .pilot-demo-num {
        width: 50px;
        height: 50px;
        line-height: 50px;
        font-size: 1.5rem;
    }

    .pilot-demo-title {
        font-size: 1.4rem;
    }

    .pilot-demo-content li {
        font-size: 1.25rem;
        padding-left: 25px;
        font-weight: 400;
    }
}

@media (max-width: 480px) {
    h1 {
        font-size: 2.5rem;
    }

    .pilot-header {
        padding: 50px 0 40px;
    }

    .pilot-intro {
        padding: 30px 20px;
    }

    .pilot-section-title {
        font-size: 1.9rem;
    }

    .pilot-cancer-header {
        padding: 20px;
    }

    .pilot-cancer-content {
        padding: 25px 20px;
    }

    .pilot-demo-item {
        padding: 25px 20px;
    }
}