/* ===================================================================
   TOOLS LAYOUT - GRID SYSTEMS & SPACING
   Reusable grid layouts for tools pages
   =================================================================== */

/* ============ TOOLS GRID LAYOUTS ============ */

/* Standard 4-column grid for large screens */
.tools-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--spacing-lg);
    margin: 0 auto;
}

/* Max width for hub page grid */
.popular-tools .tools-grid {
    max-width: 1600px;
    margin: 0 auto var(--spacing-2xl);
}

/* Max width for category page grid */
.tools-grid-section .tools-grid {
    max-width: 1200px;
    margin-top: var(--spacing-2xl);
}

/* Alphabetical groups grid */
.alphabetical-groups .tools-grid {
    margin-bottom: var(--spacing-2xl);
}

/* ============ ALPHABETICAL GROUPS ============ */
.alphabetical-groups {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-4xl);
}

.letter-group {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-lg);
}

.letter-heading {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--primary-color);
    margin: 0;
    padding-top: var(--spacing-xl);
    padding-bottom: var(--spacing-md);
    border-bottom: 3px solid rgba(99, 102, 241, 0.2);
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--accent-color) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.letter-group:first-child .letter-heading {
    padding-top: 0;
}

/* ============ TOOLS GRID SECTION WRAPPER ============ */
.tools-grid-section {
    position: relative;
    padding: var(--spacing-4xl) 0;
    background: linear-gradient(135deg, rgba(99, 102, 241, 0.03) 0%, rgba(139, 92, 246, 0.03) 100%);
    overflow: hidden;
}

.tools-grid-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent 0%, rgba(99, 102, 241, 0.2) 50%, transparent 100%);
}

.tools-grid-section::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent 0%, rgba(139, 92, 246, 0.2) 50%, transparent 100%);
}

.tools-grid-section .container {
    position: relative;
    z-index: 1;
    padding-top: var(--spacing-2xl);
    padding-bottom: var(--spacing-2xl);
}

/* ============ RESPONSIVE GRID LAYOUTS ============ */

/* Large Desktop (max-width: 1200px) - Keep 3 columns */
@media (max-width: 1200px) {
    .tools-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

/* Desktop & Large Tablets (max-width: 992px) */
@media (max-width: 992px) {
    .tools-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: var(--spacing-lg);
    }
}

/* iPad & Medium Tablets (max-width: 900px) */
@media (max-width: 900px) {
    .tools-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: var(--spacing-lg);
    }

    .letter-heading {
        font-size: 2rem;
    }
}

/* Tablets (max-width: 768px) */
@media (max-width: 768px) {
    .tools-grid-section {
        padding: var(--spacing-3xl) 0;
    }

    .tools-grid-section .container {
        padding-top: var(--spacing-lg);
        padding-bottom: var(--spacing-lg);
    }
}

/* Mobile Large (max-width: 640px) */
@media (max-width: 640px) {
    .tools-grid {
        grid-template-columns: 1fr;
        gap: var(--spacing-lg);
    }

    .letter-heading {
        font-size: 1.75rem;
    }
}

/* Mobile Standard (max-width: 480px) */
@media (max-width: 480px) {
    .tools-grid {
        gap: var(--spacing-md);
    }

    .alphabetical-groups {
        gap: var(--spacing-2xl);
    }

    .letter-heading {
        font-size: 1.5rem;
        padding-top: var(--spacing-md);
        padding-bottom: var(--spacing-sm);
    }
}