/* ===================================
   CSS CUSTOM PROPERTIES (BRANDING)
   Update these to change the entire site's look
   =================================== */
:root {
    /* Brand Colors */
    --color-primary: #595a5a;        /* Dark Slate */
    --color-secondary: #1A365D;      /* Navy */
    --color-accent: #FF6B35;         /* Orange */
    
    /* UI Colors */
    --color-background: #F7FAFC;     /* Light background */
    --color-surface: #FFFFFF;        /* Card background */
    --color-border: #E2E8F0;         /* Borders */
    
    /* Text Colors */
    --color-text-primary: #1A202C;   /* Main text */
    --color-text-secondary: #4A5568; /* Secondary text */
    --color-text-muted: #718096;     /* Muted text */
    --color-text-inverse: #FFFFFF;   /* Text on dark backgrounds */
    
    /* Typography */
    --font-family: 'proxima-nova', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --font-size-base: 16px;
    --font-size-small: 14px;
    --font-size-large: 18px;
    --font-size-xl: 24px;
    --font-size-2xl: 32px;
    
    /* Spacing */
    --spacing-xs: 8px;
    --spacing-sm: 12px;
    --spacing-md: 16px;
    --spacing-lg: 24px;
    --spacing-xl: 32px;
    --spacing-2xl: 48px;
    
    /* Layout */
    --max-width: 1200px;
    --border-radius: 8px;
    --box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
    --box-shadow-hover: 0 4px 16px rgba(0, 0, 0, 0.15);
    
    /* Transitions */
    --transition-speed: 0.3s;
}

/* ===================================
   GLOBAL STYLES
   =================================== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: var(--font-family);
    font-size: var(--font-size-base);
    color: var(--color-text-primary);
    background-color: var(--color-background);
    line-height: 1.6;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

.hidden {
    display: none !important;
}

/* ===================================
   LOADING SCREEN
   =================================== */
.loading-screen {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: var(--color-primary);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    z-index: 9999;
}

.loader {
    width: 50px;
    height: 50px;
    border: 4px solid rgba(255, 255, 255, 0.3);
    border-top-color: var(--color-accent);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

.loading-screen p {
    color: var(--color-text-inverse);
    margin-top: var(--spacing-md);
    font-size: var(--font-size-large);
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

/* ===================================
   MAIN CONTENT
   =================================== */
.main-content {
    flex: 1;
    display: flex;
    flex-direction: column;
}

/* ===================================
   HEADER
   =================================== */
.header {
    background-color: var(--color-primary);
    color: var(--color-text-inverse);
    padding: var(--spacing-md) var(--spacing-lg);
    display: flex;
    justify-content: space-between;
    align-items: center;
    box-shadow: var(--box-shadow);
}

.header-left {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
}

.logo {
    height: 48px;
    width: 48px;
    object-fit: contain;
}

.site-title {
    font-size: var(--font-size-xl);
    font-weight: 400;
    margin: 0;
}

/* User Menu */
.user-menu {
    position: relative;
}

.user-button {
    background: rgba(255, 255, 255, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.2);
    color: var(--color-text-inverse);
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: var(--border-radius);
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    font-family: var(--font-family);
    font-size: var(--font-size-base);
    transition: background-color var(--transition-speed);
}

.user-button:hover {
    background: rgba(255, 255, 255, 0.15);
}

.dropdown-arrow {
    font-size: 12px;
    transition: transform var(--transition-speed);
}

.user-button.active .dropdown-arrow {
    transform: rotate(180deg);
}

.user-dropdown {
    position: absolute;
    top: calc(100% + var(--spacing-xs));
    right: 0;
    background-color: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--border-radius);
    box-shadow: var(--box-shadow);
    min-width: 250px;
    z-index: 1000;
}

.user-info {
    padding: var(--spacing-md);
    border-bottom: 1px solid var(--color-border);
}

.user-email {
    font-size: var(--font-size-small);
    color: var(--color-text-secondary);
}

.logout-button {
    width: 100%;
    padding: var(--spacing-md);
    background: none;
    border: none;
    color: var(--color-accent);
    font-family: var(--font-family);
    font-size: var(--font-size-base);
    cursor: pointer;
    text-align: left;
    transition: background-color var(--transition-speed);
}

.logout-button:hover {
    background-color: var(--color-background);
}

/* ===================================
   WELCOME SECTION
   =================================== */
.welcome-section {
    text-align: center;
    padding: var(--spacing-2xl) var(--spacing-lg);
    background: linear-gradient(135deg, var(--color-secondary) 0%, var(--color-primary) 100%);
    color: var(--color-text-inverse);
}

.welcome-text {
    font-size: var(--font-size-2xl);
    font-weight: 600;
    margin-bottom: var(--spacing-sm);
}

.welcome-subtitle {
    font-size: var(--font-size-large);
    opacity: 0.9;
}

/* ===================================
   TOOLS SECTION
   =================================== */
.tools-section {
    flex: 1;
    padding: var(--spacing-2xl) var(--spacing-lg);
    max-width: var(--max-width);
    margin: 0 auto;
    width: 100%;
}

.tools-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: var(--spacing-lg);
}

/* Tool Cards */
.tool-card {
    background-color: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--border-radius);
    padding: var(--spacing-xl);
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    box-shadow: var(--box-shadow);
    transition: transform var(--transition-speed), box-shadow var(--transition-speed);
}

.tool-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--box-shadow-hover);
}

.tool-icon {
    font-size: 48px;
    margin-bottom: var(--spacing-md);

    img {
        height: 160px;
    }
}

.tool-title {
    font-size: var(--font-size-xl);
    font-weight: 600;
    color: var(--color-primary);
    margin-bottom: var(--spacing-sm);
}

.tool-description {
    font-size: var(--font-size-small);
    color: var(--color-text-secondary);
    margin-bottom: var(--spacing-lg);
    flex: 1;
}

.tool-button {
    display: inline-block;
    padding: var(--spacing-sm) var(--spacing-xl);
    background-color: var(--color-accent);
    color: var(--color-text-inverse);
    text-decoration: none;
    border: none;
    border-radius: var(--border-radius);
    font-family: var(--font-family);
    font-size: var(--font-size-base);
    font-weight: 600;
    cursor: pointer;
    transition: background-color var(--transition-speed), transform var(--transition-speed);
}

.tool-button:hover {
    background-color: #E55A2B;
    transform: scale(1.05);
}

.tool-button:active {
    transform: scale(0.98);
}

.tool-button:disabled {
    background-color: var(--color-text-muted);
    cursor: not-allowed;
    opacity: 0.6;
}

.tool-button:disabled:hover {
    transform: none;
}

/* Placeholder Cards */
.tool-card-placeholder {
    opacity: 0.6;
}

/* ===================================
   FOOTER
   =================================== */
.footer {
    background-color: var(--color-primary);
    color: var(--color-text-inverse);
    padding: var(--spacing-lg);
    text-align: center;
    font-size: var(--font-size-small);
}

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

/* Tablets */
@media (max-width: 768px) {
    :root {
        --font-size-2xl: 28px;
        --font-size-xl: 20px;
        --spacing-2xl: 32px;
    }
    
    .header {
        flex-direction: column;
        gap: var(--spacing-md);
        padding: var(--spacing-md);
    }
    
    .header-left {
        width: 100%;
        justify-content: center;
    }
    
    .header-right {
        width: 100%;
        display: flex;
        justify-content: center;
    }
    
    .site-title {
        font-size: var(--font-size-large);
    }
    
    .tools-grid {
        grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
        gap: var(--spacing-md);
    }
    
    .welcome-section {
        padding: var(--spacing-xl) var(--spacing-md);
    }
    
    .tools-section {
        padding: var(--spacing-xl) var(--spacing-md);
    }
}

/* Mobile */
@media (max-width: 480px) {
    :root {
        --font-size-2xl: 24px;
        --font-size-xl: 18px;
        --font-size-base: 14px;
    }
    
    .logo {
        height: 40px;
        width: 40px;
    }
    
    .tools-grid {
        grid-template-columns: 1fr;
    }
    
    .tool-card {
        padding: var(--spacing-lg);
    }

    .tool-icon img {
        height: 80px;
    }
    
    .user-dropdown {
        min-width: 200px;
    }
}