/* ==========================================================================
   RESET + BASE
   ========================================================================== */

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: system-ui, -apple-system, sans-serif;
    line-height: 1.5;
    color: var(--text-primary);
    background-color: var(--bg-primary);
    min-height: 100dvh;
    transition: background-color 0.4s, color 0.4s;
}

/* Variabili CSS - tema chiaro (default) */
:root {
    --bg-primary: #f0ebe3;
    --bg-secondary: #f7f4ef;
    --text-primary: #023859;
    --text-secondary: #733A09;
    --accent: #BF0413;
    --accent-hover: #04D99D;
    --border: rgba(2, 56, 89, 0.15);
    --shadow-sm: 0 2px 8px rgba(2, 56, 89, 0.1);
}

/* Tema scuro - applicato via classe body.dark */
body.dark {
    --bg-primary: #0d1117;
    --bg-secondary: #161b22;
    --text-primary: #e6edf3;
    --text-secondary: #8b949e;
    --accent: #58a6ff;
    --accent-hover: #79c0ff;
    --border: #30363d;
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.4);
}

/* ==========================================================================
   TIPOGRAFIA + LINK + BOTTONI
   ========================================================================== */

a {
    color: var(--accent);
    text-decoration: none;
    transition: color 0.2s;
}

a:hover,
a:focus {
    color: var(--accent-hover);
    text-decoration: underline;
}

.btn {
    display: inline-block;
    padding: 0.75rem 1.5rem;
    background-color: var(--accent);
    color: white;
    border-radius: 6px;
    font-weight: 500;
    transition: all 0.22s ease;
}

.btn:hover,
.btn:focus {
    background-color: var(--accent-hover);
    color: var(--text-primary);
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
}

/* ==========================================================================
   HEADER + NAVIGAZIONE
   ========================================================================== */

header {
    background-color: var(--bg-secondary);
    border-bottom: 1px solid var(--border);
    position: sticky;
    top: 0;
    z-index: 1000;
    box-shadow: var(--shadow-sm);
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 1rem 1.25rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 1rem;
}

.logo {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text-primary);
}

.nav-links {
    list-style: none;
    display: flex;
    gap: 1.75rem;
}

.nav-links a {
    font-weight: 500;
    padding: 0.5rem 0.25rem;
    transition: all 0.2s;
}

.nav-links a:hover {
    color: var(--accent-hover);
    text-decoration: none;
}

/* Mobile menu */
.menu-toggle {
    display: none;
    font-size: 1.8rem;
    cursor: pointer;
    color: var(--text-primary);
}

.theme-toggle {
    cursor: pointer;
    font-size: 1.4rem;
    padding: 0.5rem;
}

/* Language Switcher */
.lang-switcher {
    position: relative;
}

.lang-current {
    background: none;
    border: 1px solid var(--border);
    color: var(--text-primary);
    padding: 0.35rem 0.65rem;
    border-radius: 4px;
    font-size: 0.85rem;
    font-weight: 600;
    cursor: pointer;
    letter-spacing: 0.5px;
    transition: border-color 0.2s, background-color 0.2s;
}

.lang-current:hover,
.lang-current:focus {
    border-color: var(--accent);
    background-color: var(--bg-primary);
}

.lang-dropdown {
    display: none;
    position: absolute;
    top: 100%;
    right: 0;
    margin-top: 0.35rem;
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: 6px;
    box-shadow: var(--shadow-sm);
    list-style: none;
    min-width: 130px;
    z-index: 1001;
    overflow: hidden;
}

.lang-switcher:hover .lang-dropdown,
.lang-switcher:focus-within .lang-dropdown {
    display: block;
}

.lang-dropdown li a {
    display: block;
    padding: 0.5rem 0.85rem;
    color: var(--text-primary);
    font-size: 0.9rem;
    text-decoration: none;
    transition: background-color 0.15s;
}

.lang-dropdown li a:hover {
    background-color: var(--bg-primary);
    color: var(--accent);
    text-decoration: none;
}

/* ==========================================================================
   MAIN CONTENT WRAPPER
   ========================================================================== */

main {
    max-width: 1200px;
    margin: 0 auto;
    padding: 2rem 1.25rem;
}

/* ==========================================================================
   FOOTER
   ========================================================================== */

footer {
    background-color: var(--bg-secondary);
    color: var(--text-secondary);
    text-align: center;
    padding: 2.5rem 1rem 1.5rem;
    margin-top: 3rem;
    border-top: 1px solid var(--border);
}

footer a {
    color: var(--text-secondary);
}

footer a:hover {
    color: var(--accent-hover);
    text-decoration: none;
}

/* ==========================================================================
   RESPONSIVE
   ========================================================================== */

@media (max-width: 768px) {
    .hero h1 {
        font-size: 2rem;
    }

    .app-card {
        max-width: 100%;
    }

    .nav-links {
        display: none;
        flex-direction: column;
        width: 100%;
        background: var(--bg-secondary);
        position: absolute;
        top: 100%;
        left: 0;
        padding: 1.5rem;
        border-top: 1px solid var(--border);
        box-shadow: var(--shadow-sm);
    }

    .nav-links.active {
        display: flex;
    }

    .menu-toggle {
        display: block;
    }

    .nav-container {
        justify-content: space-between;
    }

    .lang-switcher {
        order: -1;
    }

    .lang-dropdown {
        right: auto;
        left: 0;
    }
}

@media (max-width: 480px) {
    .logo {
        font-size: 1.35rem;
    }
}

/* ==========================================================================
   HOME — HERO
   ========================================================================== */

.hero {
    text-align: center;
    padding: 4rem 0 2rem;
}

.hero h1 {
    font-size: 2.5rem;
    color: var(--text-primary);
    margin-bottom: 0.5rem;
}

.hero .subtitle {
    font-size: 1.15rem;
    color: var(--text-secondary);
    line-height: 1.6;
}

/* ==========================================================================
   HOME — APP CARDS
   ========================================================================== */

.app-cards {
    padding: 2rem 0;
}

.app-card {
    display: flex;
    align-items: center;
    gap: 1.25rem;
    padding: 1.25rem;
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: 10px;
    box-shadow: var(--shadow-sm);
    text-decoration: none;
    color: inherit;
    transition: box-shadow 0.2s, transform 0.2s;
    max-width: 520px;
}

.app-card:hover,
.app-card:focus {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(0, 0, 0, 0.12);
    text-decoration: none;
    color: inherit;
}

.app-card-icon {
    width: 64px;
    height: 64px;
    border-radius: 14px;
    flex-shrink: 0;
}

.app-card-body h2 {
    font-size: 1.15rem;
    color: var(--text-primary);
    margin-bottom: 0.25rem;
}

.app-card-body p {
    font-size: 0.95rem;
    color: var(--text-secondary);
    margin: 0;
}

/* ==========================================================================
   WHOAMI
   ========================================================================== */

.whoami-page {
    max-width: 800px;
}

.whoami-header {
    display: flex;
    align-items: center;
    gap: 1.5rem;
    margin-bottom: 2rem;
}

.whoami-photo {
    width: 100px;
    height: 100px;
    object-fit: cover;
    border-radius: 50%;
}

.whoami-header h1 {
    font-size: 2rem;
    color: var(--text-primary);
}

.whoami-body p {
    color: var(--text-secondary);
    margin-bottom: 1rem;
    line-height: 1.7;
}

.whoami-divider {
    border: none;
    border-top: 1px solid var(--border);
    margin: 2.5rem 0;
}

.whoami-contact h2 {
    font-size: 1.25rem;
    margin-bottom: 0.75rem;
    color: var(--text-primary);
}

.whoami-contact p {
    color: var(--text-secondary);
    margin-bottom: 0.75rem;
}

.whoami-contact .contact-email {
    font-size: 1.2rem;
}

.whoami-contact .contact-email a {
    font-weight: 500;
}

@media (max-width: 768px) {
    .whoami-header {
        flex-direction: column;
        text-align: center;
    }

    .whoami-photo {
        width: 80px;
        height: 80px;
    }
}

/* ==========================================================================
   PAGINE LEGALI (Privacy, Contatti)
   ========================================================================== */

.legal-page {
    max-width: 800px;
}

.legal-page h1 {
    margin-bottom: 0.5rem;
    color: var(--text-primary);
}

.legal-page .last-updated {
    color: var(--text-secondary);
    font-size: 0.9rem;
    margin-bottom: 2rem;
}

.legal-page section {
    margin-bottom: 2rem;
}

.legal-page h2 {
    font-size: 1.25rem;
    margin-bottom: 0.75rem;
    color: var(--text-primary);
}

.legal-page p {
    margin-bottom: 0.75rem;
    color: var(--text-secondary);
}

.legal-page ul {
    margin-left: 1.5rem;
    margin-bottom: 0.75rem;
    color: var(--text-secondary);
}

.legal-page li {
    margin-bottom: 0.35rem;
}

.legal-page .contact-email {
    font-size: 1.2rem;
    margin: 1rem 0;
}

.legal-page .contact-email a {
    font-weight: 500;
}