:root {
    --primary: #1e88e5;
    --primary-dark: #1565c0;
    --bg-main: #f3f5fb;
    --card-bg: #ffffff;
    --text-main: #222222;
    --text-muted: #666666;
    --border-soft: #e0e4f0;
}

* {
    box-sizing: border-box;
}

body {
    margin: 0;
    font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Arial, sans-serif;
    background: var(--bg-main);
    color: var(--text-main);
}

/* HEADER */
header {
    background: linear-gradient(135deg, var(--primary), var(--primary-dark));
    color: #ffffff;
    text-align: center;
    padding: 32px 16px 40px;
}

header h1 {
    margin: 0;
    font-size: 28px;
}

header p {
    margin: 10px 0 0;
    font-size: 15px;
    color: #e3f2fd;
}

/* CONTAINER */
.container {
    max-width: 960px;
    margin: -20px auto 40px;
    padding: 0 16px;
}

/* CARD */
.app-card {
    background: var(--card-bg);
    border-radius: 18px;
    padding: 24px 22px 26px;
    box-shadow: 0 10px 25px rgba(15, 23, 42, 0.12);
    border: 1px solid var(--border-soft);
}

/* HEADER DE LA APP */
.app-header {
    display: grid;
    grid-template-columns: auto 1fr;
    gap: 18px;
    align-items: center;
    margin-bottom: 18px;
}

.app-icon {
    width: 96px;
    height: 96px;
    border-radius: 24px;
    background: linear-gradient(135deg, #ffca28, #ff7043);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 800;
    font-size: 26px;
    color: #ffffff;
    box-shadow: 0 6px 14px rgba(0, 0, 0, 0.18);
}

/* TITULO */
.app-title-block h2 {
    margin: 0;
    font-size: 22px;
}

.app-subtitle {
    margin-top: 4px;
    font-size: 14px;
    color: var(--text-muted);
}

/* BOTONES */
.app-actions {
    margin-top: 10px;
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
}

.btn {
    padding: 8px 14px;
    border-radius: 999px;
    font-size: 13px;
    font-weight: 600;
    text-decoration: none;
    border: 1px solid transparent;
    transition: transform 0.1s ease, background 0.1s ease;
}

.btn-primary {
    background: var(--primary);
    color: #ffffff;
}

.btn-outline {
    background: #ffffff;
    color: var(--primary-dark);
    border-color: var(--primary);
}

.btn-disabled {
    background: #eceff1;
    color: #90a4ae;
    border-color: #cfd8dc;
    cursor: default;
}

/* INFO */
.app-info {
    border-top: 1px solid var(--border-soft);
    padding-top: 16px;
}

.app-row {
    margin-bottom: 10px;
}

.app-row strong {
    display: block;
    margin-bottom: 2px;
}

.app-row a {
    color: var(--primary-dark);
    text-decoration: none;
}

.app-row a:hover {
    text-decoration: underline;
}

/* TITULOS DE SECCION */
.section-title {
    font-weight: 600;
    margin-bottom: 4px;
    margin-top: 12px;
    font-size: 15px;
}

/* DESCRIPCION */
.app-description {
    font-size: 14px;
    line-height: 1.6;
}

/* CAPTURAS */
.screenshots-wrapper {
    margin-top: 8px;
    padding: 10px;
    border-radius: 12px;
    background: #f5f7ff;
    border: 1px dashed #c5cae9;
}

/* Grid totalmente responsivo */
.screenshots {
    margin-top: 6px;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
    gap: 12px;
}

.screenshots img {
    width: 100%;
    max-width: 100%;
    height: auto;
    border-radius: 12px;
    box-shadow: 0 3px 8px rgba(0, 0, 0, 0.18);
    object-fit: cover;
}

/* RESPONSIVE EXTRA */
@media (max-width: 600px) {
    .app-header {
        grid-template-columns: 1fr;
    }
}