/* Shared Layout Components - Unified Styles */

/* ===== HEADER COMPONENT ===== */
.header {
    background: var(--bg-gradient-card);
    border: 1px solid var(--border-primary);
    border-radius: var(--radius-2xl);
    padding: 2rem;
    margin: 1rem 0 2rem;
    box-shadow: var(--shadow-lg);
    backdrop-filter: blur(10px);
    position: relative;
    z-index: 1000;
}

.header::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: var(--bg-gradient-accent);
    opacity: 0.6;
}

.header-top {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    gap: 2rem;
}

.header-left {
    flex: 1;
}

.header__title {
    font-size: 2.5rem;
    font-weight: 800;
    background: var(--bg-gradient-accent);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 0.5rem;
    letter-spacing: -0.025em;
    line-height: 1.2;
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.header-icon {
    width: 2.5rem;
    height: 2.5rem;
    color: var(--accent-primary);
    -webkit-text-fill-color: var(--accent-primary);
}

.header__subtitle {
    font-size: 1.125rem;
    color: var(--text-secondary);
    font-weight: 400;
    line-height: 1.5;
}

.header-right {
    display: flex;
    align-items: center;
}

/* ===== USER INFO COMPONENT ===== */
.user-info {
    display: flex;
    align-items: center;
    gap: 1rem;
    background: var(--bg-gradient-card);
    padding: 1rem 1.25rem;
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-lg);
    border: 1px solid var(--border-primary);
    backdrop-filter: blur(10px);
}

.user-credits {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    background: var(--bg-gradient-accent);
    color: white;
    padding: 0.5rem 1rem;
    border-radius: var(--radius-lg);
    font-weight: 600;
    font-size: 0.9rem;
    box-shadow: var(--shadow-md);
}

.credits-icon {
    width: 1rem;
    height: 1rem;
    color: white;
}

.credits-count {
    font-weight: 700;
    font-size: 1.1rem;
}

.credits-text {
    font-size: 0.8rem;
    opacity: 0.9;
}

.user-menu {
    position: relative;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    cursor: pointer;
    padding: 0.5rem 0.75rem;
    border-radius: var(--radius-md);
    transition: all 0.3s ease;
    color: var(--text-primary);
}

.user-menu:hover {
    background: var(--bg-tertiary);
}

.username {
    font-weight: 600;
    color: var(--text-primary);
}

.user-dropdown {
    position: absolute;
    top: 100%;
    right: 0;
    background: var(--bg-gradient-card);
    border: 1px solid var(--border-primary);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-xl);
    min-width: 160px;
    z-index: 1000;
    opacity: 0;
    visibility: hidden;
    transform: translateY(-10px);
    transition: all 0.3s ease;
    backdrop-filter: blur(10px);
    /* Ensure dropdown is always visible */
    max-height: 300px;
    overflow-y: auto;
    /* Prevent dropdown from going off-screen */
    max-width: calc(100vw - 2rem);
    /* Allow JavaScript to override positioning */
    position: absolute !important;
}

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

/* JavaScript-controlled dropdown visibility */
.user-dropdown.visible {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.dropdown-item {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.75rem 1rem;
    color: var(--text-primary);
    text-decoration: none;
    transition: all 0.3s ease;
    border-bottom: 1px solid var(--border-secondary);
    white-space: nowrap;
    min-height: 44px; /* Ensure touch-friendly size */
}

.dropdown-item:last-child {
    border-bottom: none;
}

.dropdown-item:hover {
    background: var(--bg-tertiary);
    color: var(--accent-primary);
}

.dropdown-icon {
    width: 1rem;
    height: 1rem;
    color: var(--text-secondary);
}

/* ===== AUTH BUTTONS COMPONENT ===== */
.auth-buttons {
    display: flex;
    gap: 1rem;
    align-items: center;
}

.auth-button {
    padding: 0.75rem 1.5rem;
    border-radius: var(--radius-lg);
    text-decoration: none;
    font-weight: 600;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.9rem;
    white-space: nowrap;
    cursor: pointer;
    box-shadow: var(--shadow-md);
}

.auth-button.login {
    background: var(--bg-tertiary);
    color: var(--text-primary);
    border: 1px solid var(--border-secondary);
}

.auth-button.login:hover {
    background: var(--bg-secondary);
    border-color: var(--border-primary);
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.auth-button.register {
    background: var(--bg-gradient-accent);
    color: white;
    border: none;
    font-weight: 700;
}

.auth-button.register:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg), var(--shadow-glow);
}

.auth-icon {
    width: 1rem;
    height: 1rem;
    color: currentColor;
}

/* ===== NAVIGATION COMPONENT ===== */
.main-navigation {
    background: var(--bg-gradient-card);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border-primary);
    position: sticky;
    top: 0;
    z-index: 1000;
    box-shadow: var(--shadow-lg);
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 1rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 60px;
}

.nav-brand {
    display: flex;
    align-items: center;
}

.nav-logo {
    display: flex;
    align-items: center;
    gap: 8px;
    text-decoration: none;
    color: var(--accent-primary);
    font-weight: 700;
    font-size: 1.25rem;
}

.logo-icon {
    font-size: 1.5rem;
}

.nav-menu {
    display: flex;
    align-items: center;
    gap: 24px;
}

.nav-link {
    display: flex;
    align-items: center;
    gap: 6px;
    text-decoration: none;
    color: var(--text-secondary);
    font-weight: 500;
    padding: 8px 12px;
    border-radius: var(--radius-md);
    transition: all 0.3s ease;
}

.nav-link:hover,
.nav-link.active {
    color: var(--accent-primary);
    background: rgba(102, 126, 234, 0.1);
}

.nav-icon {
    font-size: 1rem;
}

.nav-auth {
    display: flex;
    align-items: center;
}

.user-nav-info {
    display: flex;
    align-items: center;
    gap: 12px;
}

.user-credits-nav {
    display: flex;
    align-items: center;
    gap: 4px;
    background: var(--bg-gradient-accent);
    color: white;
    padding: 6px 10px;
    border-radius: 20px;
    font-weight: 600;
    font-size: 0.85rem;
}

.username-nav {
    font-weight: 600;
    color: var(--text-primary);
}

.nav-logout {
    display: flex;
    align-items: center;
    gap: 4px;
    text-decoration: none;
    color: var(--text-secondary);
    font-weight: 500;
    padding: 6px 10px;
    border-radius: var(--radius-sm);
    transition: all 0.3s ease;
}

.nav-logout:hover {
    color: var(--accent-error);
    background: rgba(239, 68, 68, 0.1);
}

.auth-nav-buttons {
    display: flex;
    align-items: center;
    gap: 8px;
}

.nav-auth-btn {
    display: flex;
    align-items: center;
    gap: 4px;
    text-decoration: none;
    font-weight: 600;
    padding: 8px 16px;
    border-radius: var(--radius-md);
    transition: all 0.3s ease;
    font-size: 0.9rem;
}

.nav-auth-btn.login {
    background: rgba(102, 126, 234, 0.1);
    color: var(--accent-primary);
}

.nav-auth-btn.login:hover {
    background: rgba(102, 126, 234, 0.2);
}

.nav-auth-btn.register {
    background: var(--bg-gradient-accent);
    color: white;
}

.nav-auth-btn.register:hover {
    transform: translateY(-1px);
    box-shadow: var(--shadow-md);
}

/* ===== FOOTER COMPONENT ===== */
.footer {
    text-align: center;
    padding: 2rem 0;
    color: var(--text-muted);
    font-size: 0.875rem;
    border-top: 1px solid var(--border-primary);
    margin-top: auto;
}

/* ===== MAIN CONTENT AREA ===== */
.main {
    flex: 1;
    padding-bottom: 2rem;
}

/* ===== WELCOME MESSAGE COMPONENT ===== */
.welcome-section {
    margin-bottom: 2rem;
}

.welcome-message {
    background: var(--bg-gradient-card);
    border: 1px solid var(--border-primary);
    border-radius: var(--radius-xl);
    padding: 2rem;
    text-align: center;
    box-shadow: var(--shadow-lg);
    backdrop-filter: blur(10px);
    position: relative;
    overflow: hidden;
}

.welcome-message::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: var(--bg-gradient-accent);
    opacity: 0.3;
}

.welcome-icon {
    width: 3rem;
    height: 3rem;
    display: block;
    margin: 0 auto 1rem;
    color: var(--accent-primary);
}

.welcome-message h2 {
    color: var(--text-primary);
    margin: 0 0 0.5rem 0;
    font-size: 1.5rem;
    font-weight: 700;
}

.welcome-message p {
    color: var(--text-secondary);
    margin: 0;
    font-size: 1rem;
    line-height: 1.5;
}

/* ===== RESPONSIVE DESIGN ===== */
@media (max-width: 768px) {
    .header-top {
        flex-direction: column;
        align-items: stretch;
        gap: 1.5rem;
    }
    
    .header-right {
        align-self: center;
    }
    
    .auth-buttons {
        flex-direction: column;
        gap: 0.75rem;
        width: 100%;
    }
    
    .auth-button {
        width: 100%;
        justify-content: center;
        padding: 1rem 1.5rem;
    }
    
    .user-info {
        flex-direction: column;
        gap: 1rem;
        text-align: center;
    }
    
    /* Mobile dropdown positioning */
    .user-menu {
        position: relative;
    }
    
    .user-dropdown {
        right: auto;
        left: 50%;
        transform: translateX(-50%) translateY(-10px);
        min-width: 200px;
        max-width: calc(100vw - 2rem);
        /* Ensure dropdown is above other elements */
        z-index: 1001;
    }
    
    .user-menu:hover .user-dropdown,
    .user-dropdown.visible {
        transform: translateX(-50%) translateY(0);
    }
    
    .header__title {
        font-size: 2rem;
    }
    
    .welcome-message {
        padding: 1.5rem 1rem;
    }
    
    .welcome-message h2 {
        font-size: 1.3rem;
    }
    
    .form-section,
    .results-section {
        padding: 1.5rem;
    }
    
    /* Navigation responsive */
    .nav-container {
        padding: 0 0.5rem;
        height: 50px;
    }
    
    .nav-menu {
        display: none;
    }
    
    .nav-logo .logo-text {
        display: none;
    }
    
    .user-nav-info {
        gap: 8px;
    }
    
    .username-nav {
        display: none;
    }
    
    .auth-nav-buttons {
        gap: 4px;
    }
    
    .nav-auth-btn {
        padding: 6px 12px;
        font-size: 0.8rem;
    }
}

@media (max-width: 480px) {
    .header {
        margin: 0.5rem 0 1.5rem;
        padding: 1.5rem 1rem;
    }
    
    .form-section,
    .results-section {
        padding: 1rem;
    }
    
    .auth-buttons {
        justify-content: center;
    }
    
    /* Extra small screen dropdown adjustments */
    .user-dropdown {
        min-width: 180px;
        max-width: calc(100vw - 1rem);
        left: 50%;
        transform: translateX(-50%) translateY(-10px);
        z-index: 1001;
    }
    
    .user-menu:hover .user-dropdown,
    .user-dropdown.visible {
        transform: translateX(-50%) translateY(0);
    }
}