/* common-styles.css - Stili condivisi per Header, Footer e Navigation */

/* CSS Variables */
:root {
    --primary-green: #00ff88;
    --primary-green-rgb: 0, 255, 136;
    --dark-green: #00cc6a;
    --light-green: #00ff8820;
    --bg-dark: #0a0e1a;
    --bg-darker: #050810;
    --text-primary: #ffffff;
    --text-secondary: #94a3b8;
    --card-bg: rgba(255, 255, 255, 0.03);
    --card-hover: rgba(255, 255, 255, 0.06);
    --card-border: rgba(255, 255, 255, 0.08);
    --success: #10b981;
    --warning: #f59e0b;
    --danger: #ef4444;
    --info: #3b82f6;

    /* Spacing Scale */
    --space-xs: clamp(0.5rem, 1vw, 0.75rem);
    --space-sm: clamp(0.75rem, 1.5vw, 1rem);
    --space-md: clamp(1rem, 2vw, 1.5rem);
    --space-lg: clamp(1.5rem, 3vw, 2rem);
    --space-xl: clamp(2rem, 4vw, 3rem);
    --space-2xl: clamp(3rem, 6vw, 4rem);

    /* Typography Scale */
    --text-xs: clamp(0.75rem, 1.5vw, 0.875rem);
    --text-sm: clamp(0.875rem, 2vw, 0.95rem);
    --text-base: clamp(1rem, 2.5vw, 1.1rem);
    --text-lg: clamp(1.125rem, 3vw, 1.25rem);
    --text-xl: clamp(1.25rem, 3.5vw, 1.5rem);
    --text-2xl: clamp(1.5rem, 4vw, 2rem);
    --text-3xl: clamp(2rem, 5vw, 2.5rem);
    --text-4xl: clamp(2.5rem, 8vw, 4rem);
    --text-5xl: clamp(3rem, 10vw, 6rem);

    /* Container Widths */
    --container-sm: 640px;
    --container-md: 768px;
    --container-lg: 1024px;
    --container-xl: 1280px;
    --container-2xl: 1400px;
}

/* Dark mode optimizations */
@media (prefers-color-scheme: light) {
    :root {
        --bg-dark: #f8fafc;
        --bg-darker: #f1f5f9;
        --text-primary: #0f172a;
        --text-secondary: #64748b;
        --card-bg: rgba(0, 0, 0, 0.02);
        --card-hover: rgba(0, 0, 0, 0.04);
        --card-border: rgba(0, 0, 0, 0.06);
    }
}

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

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    background: var(--bg-dark);
    color: var(--text-primary);
    overflow-x: hidden;
    min-height: 100vh;
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    position: relative;
}

body.menu-open {
    overflow: hidden;
}

/* Enhanced Scrollbar */
::-webkit-scrollbar {
    width: 12px;
}

::-webkit-scrollbar-track {
    background: var(--bg-darker);
    border-left: 1px solid var(--card-border);
}

::-webkit-scrollbar-thumb {
    background: linear-gradient(180deg, var(--dark-green), var(--primary-green));
    border-radius: 6px;
    border: 2px solid var(--bg-darker);
}

::-webkit-scrollbar-thumb:hover {
    background: var(--primary-green);
}

/* Enhanced Background Animation */
.bg-animation {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -1;
    overflow: hidden;
    opacity: 0.9;
}

.gradient-orb {
    position: absolute;
    border-radius: 50%;
    filter: blur(100px);
    opacity: 0.4;
    animation: float 30s infinite ease-in-out;
    will-change: transform;
    mix-blend-mode: screen;
}

.orb-1 {
    width: min(70vw, 700px);
    height: min(70vw, 700px);
    background: radial-gradient(circle at 30% 30%,
        rgba(var(--primary-green-rgb), 0.8),
        rgba(var(--primary-green-rgb), 0.4) 40%,
        transparent 70%);
    top: -20%;
    left: -20%;
}

.orb-2 {
    width: min(50vw, 500px);
    height: min(50vw, 500px);
    background: radial-gradient(circle at 70% 70%,
        rgba(0, 204, 106, 0.6),
        transparent 60%);
    bottom: -10%;
    right: -10%;
    animation-delay: -15s;
}

.orb-3 {
    width: min(40vw, 400px);
    height: min(40vw, 400px);
    background: radial-gradient(circle at 50% 50%,
        rgba(59, 130, 246, 0.4),
        transparent 60%);
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    animation-delay: -7.5s;
}

@keyframes float {
    0%, 100% {
        transform: translate(0, 0) scale(1) rotate(0deg);
    }
    20% {
        transform: translate(10vw, -10vh) scale(1.1) rotate(90deg);
    }
    40% {
        transform: translate(-5vw, 10vh) scale(0.9) rotate(180deg);
    }
    60% {
        transform: translate(-10vw, -5vh) scale(1.05) rotate(270deg);
    }
    80% {
        transform: translate(5vw, 5vh) scale(0.95) rotate(360deg);
    }
}

/* Enhanced Header */
header {
    position: fixed;
    top: 0;
    width: 100%;
    padding: var(--space-sm) var(--space-md);
    background: rgba(10, 14, 26, 0.8);
    backdrop-filter: blur(24px) saturate(200%);
    -webkit-backdrop-filter: blur(24px) saturate(200%);
    z-index: 1000;
    border-bottom: 1px solid var(--card-border);
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

header.scrolled {
    padding: calc(var(--space-sm) * 0.75) var(--space-md);
    background: rgba(10, 14, 26, 0.95);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.4),
                0 0 0 1px rgba(var(--primary-green-rgb), 0.1);
}

.header-content {
    max-width: var(--container-2xl);
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: var(--space-md);
}

/* Logo */
.logo {
    display: flex;
    align-items: center;
    gap: var(--space-xs);
    font-size: var(--text-lg);
    font-weight: 800;
    color: #ffffff !important;
    cursor: pointer;
    transition: all 0.3s ease;
    user-select: none;
    -webkit-user-select: none;
    -moz-user-select: none;
    -ms-user-select: none;
}

.logo:hover {
    transform: scale(1.05);
    color: var(--primary-green) !important;
}

.logo-icon {
    width: 40px;
    height: 40px;
    background: linear-gradient(135deg, var(--primary-green), var(--dark-green));
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 4px 12px rgba(var(--primary-green-rgb), 0.3);
    transition: all 0.3s ease;
}

.logo:hover .logo-icon {
    box-shadow: 0 6px 20px rgba(var(--primary-green-rgb), 0.5);
    transform: rotate(5deg);
}

/* Navigation Menu */
.nav-menu {
    display: none;
}

@media (min-width: 1024px) {
    .nav-menu {
        display: block;
    }
}

.nav-links {
    list-style: none;
    display: flex;
    align-items: center;
    gap: var(--space-md);
}

.nav-link {
    color: #ffffff !important;
    text-decoration: none;
    font-size: var(--text-sm);
    font-weight: 500;
    padding: var(--space-xs) var(--space-sm);
    border-radius: 8px;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    width: 0%;
    height: 2px;
    background: var(--primary-green);
    transform: translateX(-50%);
    transition: width 0.3s ease;
}

.nav-link:hover {
    color: var(--primary-green) !important;
    background: rgba(var(--primary-green-rgb), 0.1);
    transform: translateY(-1px);
}

.nav-link:hover::after {
    width: 80%;
}

.nav-link:focus,
.nav-link:active {
    color: var(--primary-green) !important;
    background: rgba(var(--primary-green-rgb), 0.15);
    outline: 2px solid var(--primary-green);
    outline-offset: 2px;
}

.nav-cta {
    color: var(--bg-dark);
    background: linear-gradient(135deg, var(--primary-green), var(--dark-green));
    text-decoration: none;
    font-size: var(--text-sm);
    font-weight: 600;
    padding: var(--space-xs) var(--space-md);
    border-radius: 12px;
    transition: all 0.3s ease;
    box-shadow: 0 4px 12px rgba(var(--primary-green-rgb), 0.3);
}

.nav-cta:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(var(--primary-green-rgb), 0.5);
}

/* Mobile Menu Button */
.mobile-menu-btn {
    display: flex;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: var(--space-xs);
    z-index: 1001;
}

@media (min-width: 1024px) {
    .mobile-menu-btn {
        display: none;
    }
}

.mobile-menu-btn span {
    width: 25px;
    height: 2px;
    background: var(--primary-green);
    border-radius: 2px;
    transition: all 0.3s ease;
}

.mobile-menu-btn:hover span {
    background: var(--text-primary);
}

/* Mobile Menu Overlay */
.mobile-menu-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.8);
    backdrop-filter: blur(4px);
    z-index: 999;
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s ease;
}

.mobile-menu-overlay.active {
    opacity: 1;
    visibility: visible;
}

/* Mobile Menu */
.mobile-menu {
    position: fixed;
    top: 0;
    right: -100%;
    width: min(400px, 85%);
    height: 100%;
    background: var(--bg-darker);
    z-index: 1002;
    padding: var(--space-lg);
    overflow-y: auto;
    transition: right 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    box-shadow: -10px 0 40px rgba(0, 0, 0, 0.5);
}

.mobile-menu.active {
    right: 0;
}

.mobile-menu-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--space-xl);
    padding-bottom: var(--space-md);
    border-bottom: 1px solid var(--card-border);
}

.mobile-menu-header .logo {
    font-size: var(--text-xl);
}

.mobile-menu-close {
    background: none;
    border: none;
    color: #ffffff !important;
    font-size: 2.5rem;
    cursor: pointer;
    line-height: 1;
    padding: 0;
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 8px;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    -webkit-tap-highlight-color: rgba(0, 255, 136, 0.2);
}

.mobile-menu-close:hover {
    background: rgba(var(--primary-green-rgb), 0.1);
    color: var(--primary-green) !important;
}

.mobile-menu-close:focus,
.mobile-menu-close:active {
    background: rgba(var(--primary-green-rgb), 0.15);
    color: var(--primary-green) !important;
    outline: 2px solid var(--primary-green);
    outline-offset: 2px;
}

.mobile-nav-links {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: var(--space-sm);
}

.mobile-nav-link {
    display: block;
    color: #ffffff !important;
    text-decoration: none;
    font-size: var(--text-base);
    font-weight: 500;
    padding: var(--space-md);
    border-radius: 12px;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    -webkit-tap-highlight-color: rgba(0, 255, 136, 0.2);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

.mobile-nav-link:hover {
    background: rgba(var(--primary-green-rgb), 0.1);
    color: var(--primary-green) !important;
    transform: translateX(10px);
}

.mobile-nav-link:active,
.mobile-nav-link:focus {
    background: rgba(var(--primary-green-rgb), 0.15);
    color: var(--primary-green) !important;
    outline: 2px solid var(--primary-green);
    outline-offset: 2px;
}

.mobile-nav-cta {
    margin-top: var(--space-md);
    padding-top: var(--space-md);
    border-top: 1px solid var(--card-border);
}

.mobile-nav-cta .nav-cta {
    display: block;
    text-align: center;
    padding: var(--space-md);
}

/* Mobile Install Button */
.mobile-nav-install {
    margin-top: var(--space-sm);
}

.mobile-install-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-sm);
    width: 100%;
    padding: var(--space-md);
    background: linear-gradient(135deg, var(--primary-green), var(--dark-green));
    border: none;
    border-radius: 12px;
    color: var(--bg-dark);
    font-size: var(--text-base);
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    -webkit-tap-highlight-color: rgba(0, 255, 136, 0.2);
}

.mobile-install-btn:active {
    transform: scale(0.98);
    opacity: 0.9;
}

.mobile-install-btn svg {
    flex-shrink: 0;
}

/* Utility Classes */
.hidden {
    display: none !important;
}

.fade-in {
    animation: fadeIn 0.5s ease;
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Main content spacing (for fixed header) */
main {
    padding-top: 80px;
    min-height: calc(100vh - 80px);
}

/* Enhanced Cross-Browser Navigation Fixes */
/* Force white text on all navigation elements regardless of system theme */
header .logo,
header .nav-link,
header .mobile-nav-link,
header .mobile-menu-close,
.mobile-menu .logo,
.mobile-menu .nav-link,
.mobile-menu .mobile-nav-link {
    color: #ffffff !important;
}

/* Safari iOS specific fixes */
@supports (-webkit-touch-callout: none) {
    header {
        -webkit-backdrop-filter: blur(24px) saturate(200%);
    }

    .nav-link,
    .mobile-nav-link {
        -webkit-font-smoothing: antialiased;
        text-rendering: optimizeLegibility;
    }
}

/* Firefox specific fixes */
@-moz-document url-prefix() {
    header {
        background: rgba(10, 14, 26, 0.95);
    }
}

/* Responsive improvements for small screens */
@media (max-width: 640px) {
    header {
        padding: var(--space-xs) var(--space-sm);
    }

    .logo {
        font-size: clamp(1rem, 4vw, 1.125rem);
    }

    .logo-icon {
        width: 32px;
        height: 32px;
    }

    .mobile-menu {
        width: 90%;
    }
}

/* Tablet responsive improvements */
@media (min-width: 641px) and (max-width: 1023px) {
    .nav-link {
        font-size: clamp(0.875rem, 1.8vw, 0.95rem);
        padding: var(--space-xs) clamp(0.5rem, 1vw, 0.75rem);
    }
}

/* High contrast mode support */
@media (prefers-contrast: high) {
    .nav-link,
    .mobile-nav-link {
        font-weight: 600;
        border: 1px solid transparent;
    }

    .nav-link:hover,
    .mobile-nav-link:hover {
        border-color: var(--primary-green);
    }
}

/* Reduced motion support */
@media (prefers-reduced-motion: reduce) {
    .nav-link,
    .mobile-nav-link,
    .logo,
    header {
        transition: none;
    }
}