/* KH Tools 專用樣式 */

/* 全域樣式 */
* {
    box-sizing: border-box;
}

body {
    font-family: 'Noto Sans TC', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    line-height: 1.6;
    color: #333;
}

/* 導航欄樣式 */
.navbar {
    transition: all 0.3s ease;
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
}

.navbar-brand {
    font-weight: 700;
    font-size: 1.5rem;
}

.nav-link {
    font-weight: 500;
    transition: color 0.3s ease;
}

.nav-link:hover {
    color: #ff6b6b !important;
}

/* 按鈕樣式 */
.btn-custom {
    border-radius: 25px;
    padding: 12px 30px;
    font-weight: 500;
    transition: all 0.3s ease;
    border: none;
    position: relative;
    overflow: hidden;
}

.btn-custom::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
    transition: left 0.5s;
}

.btn-custom:hover::before {
    left: 100%;
}

.btn-custom:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.15);
}

/* 卡片樣式 */
.tool-card {
    transition: all 0.3s ease;
    border: none;
    border-radius: 20px;
    overflow: hidden;
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.08);
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
}

.tool-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.15);
}

.tool-card .card-body {
    padding: 2rem;
}

/* 工具圖標樣式 */
.tool-icon {
    width: 80px;
    height: 80px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 28px;
    color: white;
    margin: 0 auto 20px;
    position: relative;
    overflow: hidden;
}

.tool-icon::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(45deg, rgba(255, 255, 255, 0.1), transparent);
    border-radius: 50%;
}

/* 小工具圖標樣式（列表用） */
.tool-icon-small {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 16px;
    color: white;
    position: relative;
    overflow: hidden;
    flex-shrink: 0;
}

.tool-icon-small::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(45deg, rgba(255, 255, 255, 0.1), transparent);
    border-radius: 50%;
}

/* 列表項目樣式 */
.list-group-item {
    border: 1px solid #e9ecef;
    border-radius: 12px !important;
    margin-bottom: 8px;
    transition: all 0.3s ease;
    background: rgba(255, 255, 255, 0.9);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
}

.list-group-item:hover {
    transform: translateX(5px);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.1);
    background: white;
    border-color: #dee2e6;
}

.list-group-item:last-child {
    margin-bottom: 0;
}

/* 工具分類網格樣式 */
.tools-grid {
    background: #f8f9fa;
    border-radius: 15px;
    padding: 30px;
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.08);
}

.tool-category {
    background: white;
    border-radius: 12px;
    padding: 20px;
    height: 100%;
    transition: all 0.3s ease;
    border: 1px solid #e9ecef;
}

.tool-category:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.1);
    border-color: #dee2e6;
}

.category-title {
    font-weight: 700;
    color: #495057;
    margin-bottom: 15px;
    padding-bottom: 8px;
    border-bottom: 2px solid #e9ecef;
    font-size: 1.1rem;
}

.tool-list {
    list-style: none;
    padding: 0;
    margin: 0;
}

.tool-list li {
    margin-bottom: 8px;
}

.tool-list li:last-child {
    margin-bottom: 0;
}

.tool-list a {
    color: #6c757d;
    text-decoration: none;
    font-size: 0.95rem;
    transition: all 0.3s ease;
    display: block;
    padding: 5px 0;
    border-radius: 6px;
    padding-left: 8px;
    margin-left: -8px;
}

.tool-list a:hover {
    color: #ff6b6b;
    background: rgba(255, 107, 107, 0.1);
    padding-left: 12px;
    transform: translateX(4px);
}

/* 英雄區塊樣式 */
.hero-section {
    background: linear-gradient(135deg, #ff6b6b 0%, #ee5a24 100%);
    color: white;
    padding: 50px 0;
    position: relative;
    overflow: hidden;
}

.hero-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><defs><pattern id="grain" width="100" height="100" patternUnits="userSpaceOnUse"><circle cx="50" cy="50" r="1" fill="rgba(255,255,255,0.1)"/></pattern></defs><rect width="100" height="100" fill="url(%23grain)"/></svg>');
    opacity: 0.3;
}

.hero-section .container {
    position: relative;
    z-index: 2;
}

/* 特色區塊樣式 */
.feature-icon {
    transition: transform 0.3s ease;
}

.feature-icon:hover {
    transform: scale(1.1);
}

/* 統計數據樣式 */
.stat-item {
    padding: 20px;
    border-radius: 15px;
    background: rgba(255, 255, 255, 0.8);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    transition: all 0.3s ease;
}

.stat-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
}

/* 開發者頭像樣式 */
.avatar-circle {
    width: 150px;
    height: 150px;
    background: linear-gradient(135deg, #ff6b6b 0%, #ee5a24 100%);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 15px 35px rgba(0, 0, 0, 0.2);
    position: relative;
    overflow: hidden;
}

.avatar-circle::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: linear-gradient(45deg, transparent, rgba(255, 255, 255, 0.1), transparent);
    animation: shine 3s infinite;
}

@keyframes shine {
    0% { transform: translateX(-100%) translateY(-100%) rotate(45deg); }
    50% { transform: translateX(100%) translateY(100%) rotate(45deg); }
    100% { transform: translateX(-100%) translateY(-100%) rotate(45deg); }
}

/* 技能標籤樣式 */
.skills-list .badge {
    font-size: 0.9rem;
    padding: 10px 20px;
    border-radius: 25px;
    margin: 5px;
    transition: all 0.3s ease;
}

.skills-list .badge:hover {
    transform: scale(1.05);
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.2);
}

/* 聯絡表單樣式 */
.contact-form .form-control {
    border-radius: 15px;
    border: 2px solid #e9ecef;
    padding: 15px 20px;
    transition: all 0.3s ease;
    background: rgba(255, 255, 255, 0.9);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
}

.contact-form .form-control:focus {
    border-color: #ff6b6b;
    box-shadow: 0 0 0 0.2rem rgba(102, 126, 234, 0.25);
    background: white;
}

.contact-form .form-label {
    font-weight: 600;
    color: #495057;
    margin-bottom: 8px;
}

/* 聯絡資訊樣式 */
.contact-item {
    padding: 20px;
    border-radius: 15px;
    background: rgba(255, 255, 255, 0.8);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    transition: all 0.3s ease;
    margin-bottom: 20px;
}

.contact-item:hover {
    transform: translateX(10px);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
    background: white;
}

.contact-icon {
    width: 60px;
    height: 60px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(102, 126, 234, 0.1);
    transition: all 0.3s ease;
}

.contact-item:hover .contact-icon {
    background: rgba(102, 126, 234, 0.2);
    transform: scale(1.1);
}

/* 社群卡片樣式 */
.social-card {
    padding: 40px 30px;
    border-radius: 20px;
    background: rgba(255, 255, 255, 0.9);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    transition: all 0.3s ease;
    border: 1px solid rgba(255, 255, 255, 0.2);
}

.social-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.15);
    background: white;
}

/* 常見問題樣式 */
.accordion-item {
    border: none;
    border-radius: 15px !important;
    margin-bottom: 15px;
    overflow: hidden;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.08);
}

.accordion-button {
    background: rgba(255, 255, 255, 0.9);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border: none;
    font-weight: 600;
    padding: 20px 25px;
}

.accordion-button:not(.collapsed) {
    background: linear-gradient(135deg, #ff6b6b 0%, #ee5a24 100%);
    color: white;
    box-shadow: none;
}

.accordion-button:focus {
    box-shadow: 0 0 0 0.25rem rgba(102, 126, 234, 0.25);
}

.accordion-body {
    background: rgba(255, 255, 255, 0.95);
    padding: 25px;
    font-size: 1.1rem;
    line-height: 1.7;
}

/* 響應式設計 */
@media (max-width: 768px) {
    .hero-section {
        padding: 40px 0;
    }

    .hero-section h1 {
        font-size: 2.5rem;
    }

    .tool-card .card-body {
        padding: 1.5rem;
    }

    .avatar-circle {
        width: 120px;
        height: 120px;
    }

    .contact-item {
        margin-bottom: 15px;
    }

    .social-card {
        padding: 30px 20px;
    }

    .tools-grid {
        padding: 20px;
    }

    .tool-category {
        padding: 15px;
    }
}

@media (max-width: 576px) {
    .hero-section h1 {
        font-size: 2rem;
    }

    .btn-custom {
        padding: 10px 25px;
        font-size: 0.9rem;
    }

    .tool-icon {
        width: 60px;
        height: 60px;
        font-size: 24px;
    }
}

/* 動畫效果 */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.fade-in-up {
    animation: fadeInUp 0.6s ease-out;
}

/* 滾動動畫 */
.scroll-animate {
    opacity: 0;
    transform: translateY(30px);
    transition: all 0.6s ease-out;
}

.scroll-animate.animate {
    opacity: 1;
    transform: translateY(0);
}

/* 載入動畫 */
.loading {
    display: inline-block;
    width: 20px;
    height: 20px;
    border: 3px solid rgba(255, 255, 255, 0.3);
    border-radius: 50%;
    border-top-color: #fff;
    animation: spin 1s ease-in-out infinite;
}

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

/* 工具提示樣式 */
.tooltip {
    font-size: 0.9rem;
}

.tooltip-inner {
    background: rgba(0, 0, 0, 0.9);
    border-radius: 8px;
    padding: 8px 12px;
}