/* ===== Index Header ===== */
.index-header {
    background: linear-gradient(145deg, #2c2118 0%, #4a3c30 100%);
    color: #f5f0ea;
    border-radius: var(--radius-lg);
    padding: 56px 52px;
    margin: 32px 0 44px;
    box-shadow: var(--shadow-lg);
    position: relative;
    overflow: hidden;
    animation: fadeInUp .8s cubic-bezier(.22,1,.36,1);
}
.index-header::before {
    content: "";
    position: absolute;
    top: 0; left: 0; right: 0; bottom: 0;
    background:
        radial-gradient(ellipse at 25% 20%, rgba(146,64,14,.25), transparent 55%),
        radial-gradient(ellipse at 80% 80%, rgba(13,148,136,.15), transparent 50%);
    pointer-events: none;
}
.index-header::after {
    content: "";
    position: absolute;
    top: 24px; right: 28px;
    width: 40px; height: 40px;
    border: 2px solid rgba(185,28,28,.35);
    border-radius: 3px;
    transform: rotate(4deg);
}
.index-header h1 {
    font-family: var(--font-display);
    font-size: 2.6rem;
    font-weight: 700;
    margin-bottom: 8px;
    position: relative;
    z-index: 1;
    letter-spacing: -.01em;
}
.index-header p {
    font-size: 1rem;
    opacity: .65;
    position: relative;
    z-index: 1;
}

/* ===== Card Grid ===== */
.card-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
    gap: 28px;
    margin-bottom: 48px;
}

/* ===== Plan Card ===== */
.plan-card {
    background: #fff;
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    overflow: hidden;
    transition: transform .35s cubic-bezier(.22,1,.36,1), box-shadow .35s;
    text-decoration: none;
    color: inherit;
    display: block;
    animation: fadeInUp .6s cubic-bezier(.22,1,.36,1) backwards;
}
.plan-card:nth-child(1) { animation-delay: .12s; }
.plan-card:nth-child(2) { animation-delay: .20s; }
.plan-card:nth-child(3) { animation-delay: .28s; }
.plan-card:nth-child(4) { animation-delay: .36s; }
.plan-card:nth-child(5) { animation-delay: .44s; }
.plan-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
    text-decoration: none;
}
.plan-card-header {
    background: linear-gradient(135deg, var(--primary), var(--primary-dark));
    color: #fff;
    padding: 24px 28px;
    position: relative;
}
.plan-card-header::after {
    content: "";
    position: absolute;
    top: 14px; right: 18px;
    width: 24px; height: 24px;
    border: 1.5px solid rgba(255,255,255,.25);
    border-radius: 2px;
    transform: rotate(4deg);
}
.plan-card-header h2 {
    font-family: var(--font-display);
    font-size: 1.25rem;
    font-weight: 700;
    margin: 0;
}
.plan-card-body { padding: 24px 28px; }
.plan-card-meta {
    display: flex;
    flex-direction: column;
    gap: 10px;
}
.plan-card-meta .meta-item {
    display: flex;
    align-items: baseline;
    gap: 8px;
    font-size: .88rem;
    color: var(--gray-600);
}
.plan-card-meta .meta-label {
    font-weight: 500;
    color: var(--gray-500);
    min-width: 56px;
}
.plan-card-meta .meta-value {
    color: var(--gray-800);
}
.plan-card-footer {
    padding: 16px 28px 20px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    border-top: 1px solid var(--gray-100);
}
.plan-card-budget {
    font-family: var(--font-display);
    font-size: 1.15rem;
    font-weight: 700;
    color: var(--primary);
}
.plan-card-style {
    font-size: .78rem;
    color: var(--gray-400);
}

/* ===== Empty State ===== */
.empty-state {
    text-align: center;
    padding: 80px 20px;
    color: var(--gray-400);
}
.empty-state p { font-size: 1.1rem; }

/* ===== Index Responsive ===== */
@media (max-width: 1024px) {
    .card-grid { grid-template-columns: repeat(auto-fill, minmax(280px, 1fr)); }
}

@media (max-width: 768px) {
    .index-header { padding: 36px 24px; margin: 24px 0 32px; }
    .index-header h1 { font-size: 1.8rem; }
    .card-grid { grid-template-columns: 1fr; gap: 20px; }
    .plan-card-body { padding: 20px 24px; }
    .plan-card-footer { padding: 12px 24px 16px; }
}

@media (max-width: 480px) {
    .index-header { padding: 28px 18px; margin: 20px 0 24px; }
    .index-header h1 { font-size: 1.5rem; }
    .plan-card-header { padding: 20px 22px; }
    .plan-card-header h2 { font-size: 1.1rem; }
    .plan-card-body { padding: 16px 18px; }
    .plan-card-footer { padding: 10px 18px 14px; }
}