/* ===============================
   Professional Header Styles
   Responsive with Mobile Menu
   =============================== */

:root {
    --primary: #6366f1;
    --primary-dark: #4f46e5;
    --secondary: #ec4899;
    --dark: #1f2937;
    --darker: #111827;
    --light: #f3f4f6;
    --lighter: #f9fafb;
    --success: #10b981;
    --error: #ef4444;
    --warning: #f59e0b;
    --gray: #9ca3af;
    --gray-light: #d1d5db;
    --radius: 12px;
    --shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    --transition: all 0.3s ease;
}

/* Header Base Styles */
header {
    background: rgba(0, 0, 0, 0.3);
    backdrop-filter: blur(15px);
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    padding: 0;
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, sans-serif;
    position: sticky;
    top: 0;
    z-index: 1000;
}

.header-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 70px;
}

/* Logo/Brand */
.header-brand {
    display: flex;
    align-items: center;
    gap: 10px;
}

.brand-logo {
    font-size: 24px;
    background: linear-gradient(to right, var(--primary), var(--secondary));
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
    font-weight: 700;
}

.brand-text {
    font-size: 18px;
    font-weight: 600;
    color: var(--light);
}

/* User Info */
.header-user {
    display: flex;
    align-items: center;
    gap: 15px;
    color: var(--light);
}

.user-welcome {
    font-size: 14px;
    font-weight: 500;
}

.user-balance {
    background: linear-gradient(to right, var(--primary), var(--primary-dark));
    color: white;
    padding: 6px 12px;
    border-radius: 20px;
    font-weight: 600;
    font-size: 14px;
    display: flex;
    align-items: center;
    gap: 4px;
}

/* Navigation */
.header-nav {
    display: flex;
    align-items: center;
    gap: 5px;
}

.nav-link {
    color: var(--gray-light);
    text-decoration: none;
    padding: 10px 16px;
    border-radius: var(--radius);
    font-weight: 500;
    font-size: 14px;
    transition: var(--transition);
    position: relative;
    display: flex;
    align-items: center;
    gap: 6px;
}

.nav-link:hover {
    color: var(--light);
    background: rgba(255, 255, 255, 0.1);
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    width: 0;
    height: 2px;
    background: linear-gradient(to right, var(--primary), var(--secondary));
    transition: var(--transition);
    transform: translateX(-50%);
}

.nav-link:hover::after {
    width: 70%;
}

.nav-link.active {
    color: var(--light);
    background: rgba(255, 255, 255, 0.15);
}

.nav-link.active::after {
    width: 70%;
}

/* Mobile Menu Button (Hidden by default) */
.mobile-menu-btn {
    display: none;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    width: 40px;
    height: 40px;
    background: rgba(255, 255, 255, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: var(--radius);
    cursor: pointer;
    transition: var(--transition);
}

.mobile-menu-btn:hover {
    background: rgba(255, 255, 255, 0.2);
}

.mobile-menu-btn span {
    width: 20px;
    height: 2px;
    background: var(--light);
    margin: 2px 0;
    transition: var(--transition);
    border-radius: 2px;
}

/* Tools Menu */
.tools-menu {
    position: relative;
}

.tools-toggle {
    color: var(--gray-light);
    text-decoration: none;
    padding: 10px 16px;
    border-radius: var(--radius);
    font-weight: 500;
    font-size: 14px;
    transition: var(--transition);
    display: flex;
    align-items: center;
    gap: 6px;
    cursor: pointer;
}

.tools-toggle:hover {
    color: var(--light);
    background: rgba(255, 255, 255, 0.1);
}

.tools-dropdown {
    position: absolute;
    top: 100%;
    right: 0;
    background: rgba(0, 0, 0, 0.9);
    backdrop-filter: blur(20px);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: var(--radius);
    padding: 10px;
    min-width: 200px;
    box-shadow: var(--shadow);
    opacity: 0;
    visibility: hidden;
    transform: translateY(10px);
    transition: var(--transition);
    z-index: 100;
}

.tools-menu:hover .tools-dropdown {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.tool-item {
    display: block;
    padding: 10px 15px;
    color: var(--gray-light);
    text-decoration: none;
    border-radius: 6px;
    transition: var(--transition);
    font-size: 14px;
}

.tool-item:hover {
    color: var(--light);
    background: rgba(255, 255, 255, 0.1);
}

/* Responsive Design */
@media (max-width: 968px) {
    .header-container {
        padding: 0 15px;
    }
    
    .brand-text {
        display: none;
    }
    
    .user-welcome {
        display: none;
    }
    
    .nav-link span:not(.icon) {
        display: none;
    }
    
    .nav-link {
        padding: 10px;
    }
}

@media (max-width: 768px) {
    .mobile-menu-btn {
        display: flex;
    }
    
    .header-nav {
        position: fixed;
        top: 70px;
        left: 0;
        width: 100%;
        background: rgba(0, 0, 0, 0.95);
        backdrop-filter: blur(20px);
        flex-direction: column;
        padding: 20px;
        gap: 10px;
        transform: translateY(-100%);
        opacity: 0;
        visibility: hidden;
        transition: var(--transition);
        border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    }
    
    .header-nav.active {
        transform: translateY(0);
        opacity: 1;
        visibility: visible;
    }
    
    .nav-link {
        width: 100%;
        justify-content: center;
        padding: 15px;
    }
    
    .nav-link span:not(.icon) {
        display: inline;
    }
    
    .tools-menu {
        width: 100%;
    }
    
    .tools-toggle {
        width: 100%;
        justify-content: center;
    }
    
    .tools-dropdown {
        position: static;
        background: transparent;
        border: none;
        box-shadow: none;
        opacity: 1;
        visibility: visible;
        transform: none;
        display: none;
        padding: 10px 0 0 20px;
    }
    
    .tools-menu:hover .tools-dropdown,
    .tools-menu.active .tools-dropdown {
        display: block;
    }
    
    .tool-item {
        padding: 12px 15px;
    }
}

@media (max-width: 480px) {
    .header-container {
        height: 60px;
        padding: 0 10px;
    }
    
    .brand-logo {
        font-size: 20px;
    }
    
    .user-balance {
        font-size: 12px;
        padding: 5px 10px;
    }
    
    .header-nav {
        top: 60px;
    }
}

/* Animation for mobile menu button */
.mobile-menu-btn.active span:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
}

.mobile-menu-btn.active span:nth-child(2) {
    opacity: 0;
}

.mobile-menu-btn.active span:nth-child(3) {
    transform: rotate(-45deg) translate(5px, -5px);
}

/* Icon styles */
.icon {
    font-size: 16px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
}