/* ==========================================
   CAD-SIGNet - Tab Component Styles
   ========================================== */

/* ==========================================
   MAIN TAB CONTAINER
   ========================================== */

.tab {
    display: flex;
    justify-content: center;
    gap: 12px;
    margin-bottom: 30px;
    flex-wrap: wrap;
}

/* Hide all tab content by default */
.tabcontent {
    display: none;
    padding: 30px;
    animation: fadeInUp 0.5s ease-out;
    background: var(--bg-secondary);
    border-radius: var(--border-radius-lg);
    margin-top: 20px;
    box-shadow: var(--shadow-sm);
}

/* ==========================================
   MAIN TAB BUTTONS
   ========================================== */

.tab button.tablinks {
    background: var(--bg-secondary);
    color: var(--text-secondary);
    border: 2px solid var(--bg-tertiary);
    outline: none;
    cursor: pointer;
    padding: 14px 28px;
    transition: all var(--transition-normal);
    border-radius: var(--border-radius-xl);
    font-size: 17px;
    font-weight: 600;
    font-family: inherit;
    position: relative;
    overflow: hidden;
}

.tab button.tablinks::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(67, 97, 238, 0.1), transparent);
    transition: left 0.5s;
}

.tab button.tablinks:hover::before {
    left: 100%;
}

.tab button.tablinks:hover {
    background: var(--bg-tertiary);
    color: var(--primary-color);
    border-color: var(--primary-color);
    transform: translateY(-2px);
    box-shadow: var(--shadow-sm);
}

/* Active main tab button */
.tab button.tablinks.active {
    background: var(--gradient-primary);
    color: white;
    border-color: transparent;
    box-shadow: var(--shadow-md);
    transform: translateY(-2px);
}

/* ==========================================
   SUB-TAB OPTIONS
   ========================================== */

.options {
    display: flex;
    justify-content: center;
    gap: 10px;
    padding: 20px 0;
    flex-wrap: wrap;
}

.options button.subtablinks {
    background: var(--bg-primary);
    color: var(--text-muted);
    border: 2px solid var(--bg-tertiary);
    outline: none;
    cursor: pointer;
    padding: 10px 22px;
    transition: all var(--transition-normal);
    border-radius: var(--border-radius-lg);
    font-size: 16px;
    font-weight: 500;
    font-family: inherit;
}

.options button.subtablinks:hover {
    background: var(--bg-tertiary);
    color: var(--accent-color);
    border-color: var(--accent-color);
    transform: translateY(-2px);
}

/* Active subtab button */
.options button.subtablinks.active {
    background: linear-gradient(135deg, var(--accent-color) 0%, #c9184a 100%);
    color: white;
    border-color: transparent;
    box-shadow: 0 4px 15px rgba(247, 37, 133, 0.3);
}

/* ==========================================
   OPTION CONTENT
   ========================================== */

.option-content {
    display: none;
    animation: fadeIn 0.4s ease-out;
    padding: 20px 0;
}

.option-content.active {
    display: block;
}

/* ==========================================
   TAB IMAGES
   ========================================== */

.tab-image {
    width: 100%;
    max-width: 100%;
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-md);
    transition: all var(--transition-normal);
    background: white;
    padding: 15px;
}

.tab-image:hover {
    transform: scale(1.02);
    box-shadow: var(--shadow-lg);
}

body.dark-mode .tab-image {
    background: var(--bg-tertiary);
}

.tab-image-ac {
    width: 85%;
    max-width: 100%;
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-md);
    transition: all var(--transition-normal);
    background: white;
    padding: 15px;
}

.tab-image-ac:hover {
    transform: scale(1.02);
    box-shadow: var(--shadow-lg);
}

body.dark-mode .tab-image-ac {
    background: var(--bg-tertiary);
}

/* ==========================================
   TASK DESCRIPTION BOX
   ========================================== */

.tabcontent span {
    display: block;
    padding: 20px 25px;
    background: var(--bg-primary);
    border-radius: var(--border-radius-md);
    border-left: 4px solid var(--primary-color);
    margin-bottom: 25px;
    font-size: 24px;
    line-height: 1.75;
    color: var(--text-secondary);
}

.tabcontent span b {
    color: var(--text-primary);
}

.tabcontent span i {
    color: var(--text-muted);
    font-size: 18px;
}

/* ==========================================
   ANIMATIONS
   ========================================== */

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

@keyframes fadeIn {
    from {
        opacity: 0;
    }
    to {
        opacity: 1;
    }
}

@keyframes slideDown {
    from {
        opacity: 0;
        transform: translateY(-10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* ==========================================
   RESPONSIVE STYLES
   ========================================== */

@media (max-width: 767px) {
    .tab {
        flex-direction: column;
        align-items: stretch;
        gap: 8px;
    }

    .tab button.tablinks {
        padding: 12px 20px;
        font-size: 14px;
        text-align: center;
    }

    .options {
        flex-direction: column;
        align-items: stretch;
        gap: 8px;
    }

    .options button.subtablinks {
        padding: 10px 16px;
        font-size: 13px;
        text-align: center;
    }

    .tabcontent {
        padding: 20px 15px;
    }

    .tab-image,
    .tab-image-ac {
        width: 100% !important;
        padding: 10px;
    }

    .tabcontent span {
        padding: 15px;
        font-size: 14px;
    }
}

/* ==========================================
   DARK MODE ADJUSTMENTS
   ========================================== */

body.dark-mode .tab button.tablinks {
    background: var(--bg-secondary);
    border-color: var(--bg-tertiary);
    color: var(--text-secondary);
}

body.dark-mode .tab button.tablinks:hover {
    background: var(--bg-tertiary);
    color: var(--primary-color);
}

body.dark-mode .tab button.tablinks.active {
    background: var(--gradient-primary);
    color: white;
}

body.dark-mode .options button.subtablinks {
    background: var(--bg-secondary);
    border-color: var(--bg-tertiary);
    color: var(--text-muted);
}

body.dark-mode .options button.subtablinks:hover {
    background: var(--bg-tertiary);
}

body.dark-mode .tabcontent {
    background: var(--bg-secondary);
}

body.dark-mode .tabcontent span {
    background: var(--bg-tertiary);
}

/* ==========================================
   ACCESSIBILITY
   ========================================== */

.tab button.tablinks:focus-visible,
.options button.subtablinks:focus-visible {
    outline: 2px solid var(--primary-color);
    outline-offset: 2px;
}

/* Reduce motion for users who prefer it */
@media (prefers-reduced-motion: reduce) {
    .tabcontent,
    .option-content,
    .tab-image,
    .tab-image-ac,
    .tab button.tablinks,
    .options button.subtablinks {
        animation: none;
        transition: none;
    }
}