:root {
    --primary-color: #e63946;
    --accent-color: #ff6b6b;
    --dark-bg: #0d0d0d;
    --card-bg: #1a1a1a;
    --card-border: #2a2a2a;
    --text-primary: #f0f0f0;
    --text-secondary: #a0a0a0;
    --input-bg: #1e1e1e;
    --input-border: #333;
}

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

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background-color: var(--dark-bg);
    color: var(--text-primary);
}

.navbar {
    box-shadow: 0 2px 15px rgba(0, 0, 0, 0.5);
}

.prima {
    background: linear-gradient(rgba(0, 0, 0, 0.75), rgba(0, 0, 0, 0.75)), url("robo.png");
    background-size: cover;
    background-position: center;
    background-attachment: fixed;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-primary);
    flex-direction: column;
    padding: 60px 0;
    margin-bottom: 0 !important;
}

.hero-card {
    background: rgba(15, 15, 15, 0.9);
    border: 1px solid var(--card-border);
    border-radius: 20px;
    padding: 3rem;
    backdrop-filter: blur(10px);
}

.hero-card2 {
    background: rgba(15, 15, 15, 0.9);
    border: 1px solid var(--card-border);
    border-radius: 20px;
    padding: 3rem;
    backdrop-filter: blur(10px);
    margin-top: 3rem;
}

/* Card study - dark variant */
.card-study {
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    border: 1px solid var(--card-border);
    border-radius: 15px;
    background: var(--card-bg);
    color: var(--text-primary);
    height: 100%;
}

.card-study:hover {
    transform: translateY(-10px);
    box-shadow: 0 10px 30px rgba(230, 57, 70, 0.15);
    border-color: var(--primary-color);
}

.card-study h3 {
    color: var(--text-primary);
}

.card-study p {
    color: var(--text-secondary);
}

/* Sections dark */
#vantaggi {
    background-color: #111 !important;
    color: var(--text-primary);
}

#chiSiamo {
    background-color: #0a0a0a !important;
    color: var(--text-primary);
}

#chiSiamo .text-muted {
    color: var(--text-secondary) !important;
}

#chiSiamo h2 {
    color: var(--text-primary);
}

/* Footer */
footer {
    background-color: #080808;
    color: #ccc;
    padding: 40px 0;
    margin-top: 0 !important;
    border-top: 1px solid var(--card-border);
}

footer a {
    margin: 0 !important;
    font-size: inherit !important;
}

.social-icons a {
    text-decoration: none !important;
    transition: transform 0.2s ease;
    display: inline-block;
}

.social-icons a:hover {
    transform: scale(1.2);
}

#cronologia {
    gap: 5px;
}

/* ===== DARK FORM CONTROLS ===== */
.form-select,
.form-control {
    background-color: var(--input-bg) !important;
    border-color: var(--input-border) !important;
    color: var(--text-primary) !important;
}

.form-select:focus,
.form-control:focus {
    border-color: var(--primary-color) !important;
    box-shadow: 0 0 0 0.2rem rgba(230, 57, 70, 0.25) !important;
}

.form-select option {
    background-color: var(--card-bg);
    color: var(--text-primary);
}

.form-label {
    color: var(--text-secondary);
}

/* ===== DARK ACCORDION ===== */
.accordion-item {
    background-color: var(--card-bg) !important;
    border-color: var(--card-border) !important;
}

.accordion-button {
    background-color: var(--card-bg) !important;
    color: var(--text-primary) !important;
    border-color: var(--card-border) !important;
}

.accordion-button:not(.collapsed) {
    background-color: #1f1f1f !important;
    color: var(--accent-color) !important;
    box-shadow: inset 0 -1px 0 var(--card-border) !important;
}

.accordion-button::after {
    filter: invert(1);
}

.accordion-body {
    background-color: #141414 !important;
    color: var(--text-primary) !important;
}

/* ===== DARK INPUT GROUP ===== */
.input-group-text {
    background-color: var(--card-bg) !important;
    border-color: var(--input-border) !important;
    color: var(--text-secondary) !important;
}

/* ===== DARK ALERTS ===== */
.alert-info {
    background-color: rgba(230, 57, 70, 0.1) !important;
    border-color: var(--primary-color) !important;
    color: var(--text-primary) !important;
}

.alert-dark {
    background-color: rgba(255, 255, 255, 0.05) !important;
    border-color: var(--card-border) !important;
}

/* ===== BUTTONS DARK ADJUST ===== */
.btn-primary {
    background-color: var(--primary-color) !important;
    border-color: var(--primary-color) !important;
}

.btn-primary:hover {
    background-color: #c1121f !important;
    border-color: #c1121f !important;
}

.btn-danger {
    background-color: var(--primary-color) !important;
    border-color: var(--primary-color) !important;
}

.btn-danger:hover {
    background-color: #c1121f !important;
    border-color: #c1121f !important;
}

.btn-outline-secondary {
    color: var(--text-secondary) !important;
    border-color: var(--card-border) !important;
}

.btn-outline-secondary:hover {
    background-color: var(--card-bg) !important;
    color: var(--text-primary) !important;
}

.btn-outline-primary {
    color: var(--accent-color) !important;
    border-color: var(--accent-color) !important;
}

.btn-outline-primary:hover {
    background-color: var(--primary-color) !important;
    color: #fff !important;
}

.btn-outline-danger {
    color: #ff4d4d !important;
    border-color: #ff4d4d !important;
}

.btn-outline-danger:hover {
    background-color: #ff4d4d !important;
    color: #fff !important;
}