/* ===== PROBLEMS SECTION (INTEREST) ===== */
.problems {
    padding: 60px 0;
    position: relative;
}

.problems-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 48px;
    align-items: center;
    margin-top: 44px;
}

.problems-list {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.problem-card {
    padding: 24px;
    background: var(--glass-bg);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border: 1px solid var(--glass-border);
    border-radius: 20px;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    overflow: hidden;
}

.problem-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 4px;
    height: 100%;
    background: linear-gradient(180deg, var(--red-primary), transparent);
    opacity: 0;
    transition: opacity 0.3s ease;
}

.problem-card:hover {
    transform: translateX(8px);
    background: var(--glass-bg-hover);
    border-color: rgba(198, 40, 40, 0.3);
}

.problem-card:hover::before {
    opacity: 1;
}

.problem-icon {
    font-size: 1.8rem;
    margin-bottom: 10px;
}

.problem-card h3 {
    font-size: 1.1rem;
    font-weight: 700;
    margin-bottom: 6px;
    color: var(--text-primary);
}

.problem-card p {
    font-size: 0.92rem;
    color: var(--text-secondary);
    line-height: 1.6;
}

.solution-visual {
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
}

.shield-container {
    width: 340px;
    height: 340px;
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
}

.shield-glow {
    position: absolute;
    width: 280px;
    height: 280px;
    border-radius: 50%;
    background: radial-gradient(circle, var(--red-glow), transparent 70%);
    animation: pulseGlow 3s ease-in-out infinite;
}

@keyframes pulseGlow {
    0%,
    100% {
        transform: scale(1);
        opacity: 0.5;
    }

    50% {
        transform: scale(1.15);
        opacity: 0.8;
    }
}

.shield-ring {
    position: absolute;
    border: 2px solid rgba(198, 40, 40, 0.2);
    border-radius: 50%;
    animation: rotateRing 20s linear infinite;
}

.shield-ring-1 {
    width: 300px;
    height: 300px;
    border-style: dashed;
}

.shield-ring-2 {
    width: 250px;
    height: 250px;
    animation-direction: reverse;
    animation-duration: 15s;
    border-color: rgba(198, 40, 40, 0.15);
}

@keyframes rotateRing {
    from {
        transform: rotate(0deg);
    }

    to {
        transform: rotate(360deg);
    }
}

.shield-center {
    width: 130px;
    height: 130px;
    background: linear-gradient(135deg, var(--red-primary), var(--red-dark));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    z-index: 2;
    box-shadow: 0 0 60px var(--red-glow);
}

.shield-center svg {
    width: 56px;
    height: 56px;
    fill: white;
}

.node {
    position: absolute;
    width: 40px;
    height: 40px;
    background: var(--glass-bg);
    backdrop-filter: blur(10px);
    border: 1px solid var(--glass-border);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.2rem;
    animation: floatNode 4s ease-in-out infinite;
}

.node:nth-child(6) {
    top: 10px;
    left: 50%;
    transform: translateX(-50%);
    animation-delay: 0s;
}

.node:nth-child(7) {
    top: 25%;
    right: 10px;
    animation-delay: -1s;
}

.node:nth-child(8) {
    bottom: 25%;
    right: 10px;
    animation-delay: -2s;
}

.node:nth-child(9) {
    bottom: 10px;
    left: 50%;
    transform: translateX(-50%);
    animation-delay: -3s;
}

.node:nth-child(10) {
    top: 25%;
    left: 10px;
    animation-delay: -0.5s;
}

.node:nth-child(11) {
    bottom: 25%;
    left: 10px;
    animation-delay: -2.5s;
}

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

    50% {
        transform: translateY(-10px);
    }
}