/* 
   FitSense - Core styles
   Modern, minimal design with responsive layout
*/

/* --- Variables --- */
:root {
    /* Colors */
    --primary: #4CAF50;
    --primary-dark: #388E3C;
    --primary-light: #C8E6C9;
    --accent: #00BCD4;
    --text: #333333;
    --text-light: #757575;
    --background: #f5f5f5;
    --card-bg: #ffffff;
    --border: #e0e0e0;
    
    /* Typography */
    --font-family: 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    
    /* Spacing */
    --spacing-xs: 0.25rem;
    --spacing-s: 0.5rem;
    --spacing-m: 1rem;
    --spacing-l: 1.5rem;
    --spacing-xl: 2rem;
    --spacing-xxl: 3rem;
    
    /* Border radius */
    --radius-s: 4px;
    --radius-m: 8px;
    --radius-l: 12px;
    
    /* Shadows */
    --shadow-sm: 0 1px 3px rgba(0,0,0,0.12), 0 1px 2px rgba(0,0,0,0.24);
    --shadow-md: 0 3px 6px rgba(0,0,0,0.16), 0 3px 6px rgba(0,0,0,0.23);
    --shadow-lg: 0 10px 20px rgba(0,0,0,0.19), 0 6px 6px rgba(0,0,0,0.23);
}

/* --- Reset & Base --- */
* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    font-size: 16px;
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-family);
    color: var(--text);
    background-color: var(--background);
    line-height: 1.6;
    overflow-x: hidden;
}

h1, h2, h3, h4, h5, h6 {
    font-weight: 600;
    line-height: 1.3;
    margin-bottom: var(--spacing-m);
    color: var(--text);
}

h1 {
    font-size: 2rem;
}

h2 {
    font-size: 1.75rem;
}

h3 {
    font-size: 1.5rem;
}

h4 {
    font-size: 1.25rem;
}

p {
    margin-bottom: var(--spacing-m);
}
/* --- Checkout Hero Custom --- */
.checkout-hero-fitsense {
    /* Uso il tuo gradiente ma con un angolo più moderno */
    background: linear-gradient(135deg, var(--primary-dark) 0%, var(--accent) 100%);
    color: white;
    padding: var(--spacing-xxl) 0;
    text-align: center;
    position: relative;
    overflow: hidden;
}

/* Riprendo lo stile delle tue card ma lo adatto alla promo */
.promo-badge {
    background-color: rgba(255, 255, 255, 0.2);
    border: 1px solid rgba(255, 255, 255, 0.4);
    color: white;
    display: inline-block;
    padding: var(--spacing-xs) var(--spacing-m);
    border-radius: var(--radius-l);
    font-size: 0.8rem;
    font-weight: bold;
    letter-spacing: 1px;
    margin-bottom: var(--spacing-m);
}

.checkout-hero-fitsense h1 {
    color: white; /* Sovrascrivo il tuo h1 nero */
    font-size: 3rem;
    margin-bottom: var(--spacing-m);
    text-shadow: 0 2px 4px rgba(0,0,0,0.1);
}

.hero-subtitle {
    font-size: 1.2rem;
    max-width: 700px;
    margin: 0 auto var(--spacing-l);
    opacity: 0.95;
    line-height: 1.6;
    color: white;
}

.hero-features {
    display: flex;
    justify-content: center;
    gap: var(--spacing-l);
    font-weight: 500;
    font-size: 0.9rem;
}

.hero-features i {
    margin-right: var(--spacing-xs);
    color: var(--primary-light);
}

/* --- Adattamento Order Summary --- */
/* Rendiamo il riepilogo coerente con le tue card */
.order-summary {
    background-color: var(--card-bg);
    border-radius: var(--radius-m);
    box-shadow: var(--shadow-md);
    padding: var(--spacing-l);
    border: 1px solid var(--border);
}

.total-line.total span {
    color: var(--primary);
    font-size: 1.5rem;
    font-weight: bold;
}

/* Nota per il saldo futuro */
.balance-note {
    font-size: 0.85rem;
    color: var(--text-light);
    margin-top: var(--spacing-m);
    font-style: italic;
    text-align: center;
}
a {
    color: var(--accent);
    text-decoration: none;
    transition: color 0.3s ease;
}

a:hover {
    color: var(--primary);
}

img {
    max-width: 100%;
    height: auto;
}

ul, ol {
    margin-bottom: var(--spacing-m);
    padding-left: var(--spacing-l);
}

/* --- Layout --- */
.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-l);
}

section {
    padding: var(--spacing-xl) 0;
}

.card {
    background-color: var(--card-bg);
    border-radius: var(--radius-m);
    box-shadow: var(--shadow-sm);
    padding: var(--spacing-xl);
    margin-bottom: var(--spacing-l);
}

/* --- Header --- */
header {
    background-color: var(--card-bg);
    box-shadow: var(--shadow-sm);
    position: sticky;
    top: 0;
    z-index: 100;
    padding: var(--spacing-m) 0;
}

header .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo h1 {
    margin: 0;
    color: var(--primary);
    font-size: 1.5rem;
}

nav ul {
    display: flex;
    list-style: none;
    margin: 0;
    padding: 0;
}

nav ul li:not(:last-child) {
    margin-right: var(--spacing-l);
}

nav ul li a {
    color: var(--text);
    font-weight: 500;
    padding: var(--spacing-xs) 0;
    position: relative;
}

nav ul li a::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    width: 0;
    height: 2px;
    background-color: var(--primary);
    transition: width 0.3s ease;
}

nav ul li a:hover::after, 
nav ul li a.active::after {
    width: 100%;
}

nav ul li a.active {
    color: var(--primary);
}

/* --- Hero Sections --- */
.contact-hero, 
.support-hero {
    background: linear-gradient(120deg, var(--primary) 0%, var(--accent) 100%);
    color: white;
    text-align: center;
    padding: var(--spacing-xxl) 0;
}

.contact-hero h2, 
.support-hero h2 {
    color: white;
    margin-bottom: var(--spacing-s);
}

.contact-hero p, 
.support-hero p {
    font-size: 1.1rem;
    opacity: 0.9;
    max-width: 600px;
    margin: 0 auto;
}

/* --- Forms --- */
.form-group {
    margin-bottom: var(--spacing-l);
}

label {
    display: block;
    margin-bottom: var(--spacing-xs);
    font-weight: 500;
}

input, 
textarea, 
select {
    width: 100%;
    padding: var(--spacing-m);
    border: 1px solid var(--border);
    border-radius: var(--radius-s);
    font-family: var(--font-family);
    font-size: 1rem;
    transition: border-color 0.3s ease, box-shadow 0.3s ease;
    background-color: var(--card-bg);
}

input:focus, 
textarea:focus, 
select:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px var(--primary-light);
}

/* --- Buttons --- */
.btn {
    display: inline-block;
    padding: var(--spacing-m) var(--spacing-xl);
    border-radius: var(--radius-s);
    font-weight: 500;
    cursor: pointer;
    transition: all 0.3s ease;
    border: none;
    text-align: center;
    font-size: 1rem;
}

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

.btn-primary:hover {
    background-color: var(--primary-dark);
    color: white;
}

.btn-outline {
    background-color: transparent;
    color: var(--primary);
    border: 1px solid var(--primary);
}

.btn-outline:hover {
    background-color: var(--primary);
    color: white;
}

/* --- Contact Info Section --- */
.info-cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-l);
    margin-top: var(--spacing-l);
}

.info-card {
    background-color: var(--card-bg);
    padding: var(--spacing-l);
    border-radius: var(--radius-m);
    text-align: center;
    box-shadow: var(--shadow-sm);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.info-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-md);
}

.info-card .icon {
    font-size: 2rem;
    color: var(--primary);
    margin-bottom: var(--spacing-m);
}

.info-card h4 {
    margin-bottom: var(--spacing-xs);
}

/* --- Social Links --- */
.social-links {
    text-align: center;
    padding-bottom: var(--spacing-xxl);
}

.social-icons {
    display: flex;
    justify-content: center;
    gap: var(--spacing-l);
    margin-top: var(--spacing-m);
}

.social-icon {
    font-size: 1.5rem;
    width: 50px;
    height: 50px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    background-color: var(--card-bg);
    color: var(--primary);
    transition: all 0.3s ease;
    box-shadow: var(--shadow-sm);
}

.social-icon:hover {
    transform: scale(1.1);
    box-shadow: var(--shadow-md);
    background-color: var(--primary);
    color: white;
}

/* --- FAQ Section --- */
.faq-container {
    margin-top: var(--spacing-l);
}

.faq-item {
    background-color: var(--card-bg);
    border-radius: var(--radius-m);
    margin-bottom: var(--spacing-m);
    box-shadow: var(--shadow-sm);
    overflow: hidden;
}

.faq-question {
    padding: var(--spacing-l);
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
    transition: background-color 0.3s ease;
}

.faq-question:hover {
    background-color: rgba(0, 0, 0, 0.02);
}

.faq-question h4 {
    margin: 0;
    font-size: 1.1rem;
}

.toggle-icon {
    color: var(--primary);
    transition: transform 0.3s ease;
}

.faq-answer {
    padding: 0 var(--spacing-l);
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.5s ease, padding 0.5s ease;
}

.faq-item.active .faq-answer {
    max-height: 500px;
    padding: 0 var(--spacing-l) var(--spacing-l);
}

.faq-answer p {
    margin-bottom: var(--spacing-m);
}

.faq-answer ol, 
.faq-answer ul {
    margin-bottom: var(--spacing-m);
}

/* --- Resources Section --- */
.resources-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-l);
    margin-top: var(--spacing-l);
}

.resource-card {
    background-color: var(--card-bg);
    padding: var(--spacing-l);
    border-radius: var(--radius-m);
    text-align: center;
    box-shadow: var(--shadow-sm);
    transition: transform 0.3s ease;
}

.resource-card:hover {
    transform: translateY(-5px);
}

.resource-card .icon {
    font-size: 2rem;
    color: var(--primary);
    margin-bottom: var(--spacing-m);
}

.resource-card h4 {
    margin-bottom: var(--spacing-s);
}

.resource-card p {
    margin-bottom: var(--spacing-l);
    color: var(--text-light);
}

/* --- Footer --- */
footer {
    background-color: var(--card-bg);
    padding: var(--spacing-l) 0;
    text-align: center;
    box-shadow: 0 -1px 3px rgba(0, 0, 0, 0.1);
}

footer p {
    margin: 0;
    color: var(--text-light);
}

/* --- Responsive --- */
@media (max-width: 768px) {
    html {
        font-size: 14px;
    }
    
    header .container {
        flex-direction: column;
    }
    
    .logo {
        margin-bottom: var(--spacing-s);
    }
    
    nav ul {
        justify-content: center;
    }
    
    .info-cards, 
    .resources-grid {
        grid-template-columns: 1fr;
    }
    
    .card {
        padding: var(--spacing-l);
    }
}

@media (max-width: 480px) {
    section {
        padding: var(--spacing-l) 0;
    }
    
    .contact-hero, 
    .support-hero {
        padding: var(--spacing-xl) 0;
    }
    
    nav ul li:not(:last-child) {
        margin-right: var(--spacing-m);
    }
    
    .btn {
        display: block;
        width: 100%;
    }
}