/**
 * VELOCITY Effects CSS
 * エフェクト14種のスタイル定義
 *
 * @package VELOCITY
 * @since 1.0.0
 */

/* ==========================================================================
   E-001: 画像オーバーレイ
   ========================================================================== */
.ve-overlay {
    position: relative;
    overflow: hidden;
    cursor: pointer;
}

.ve-overlay img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.4s ease;
}

.ve-overlay::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, rgba(0, 217, 255, 0.8) 0%, rgba(0, 150, 200, 0.8) 100%);
    opacity: 0;
    transition: opacity 0.4s ease;
    z-index: 1;
}

.ve-overlay-text {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%) translateY(20px);
    color: #fff;
    font-size: 1.2rem;
    font-weight: bold;
    text-align: center;
    opacity: 0;
    transition: all 0.4s ease;
    z-index: 2;
}

.ve-overlay:hover::before {
    opacity: 1;
}

.ve-overlay:hover .ve-overlay-text {
    opacity: 1;
    transform: translate(-50%, -50%) translateY(0);
}

.ve-overlay:hover img {
    transform: scale(1.1);
}

/* ==========================================================================
   E-002: 3D回転
   ========================================================================== */
.ve-3d-rotate {
    perspective: 1000px;
}

.ve-3d-rotate-inner {
    position: relative;
    width: 100%;
    height: 100%;
    transition: transform 0.8s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    transform-style: preserve-3d;
}

.ve-3d-rotate:hover .ve-3d-rotate-inner {
    transform: rotateY(180deg);
}

.ve-3d-rotate-front,
.ve-3d-rotate-back {
    position: absolute;
    width: 100%;
    height: 100%;
    backface-visibility: hidden;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--border-radius);
}

.ve-3d-rotate-front {
    background: var(--color-card);
    border: 1px solid var(--color-border);
}

.ve-3d-rotate-back {
    background: linear-gradient(135deg, var(--color-accent) 0%, #0096c8 100%);
    color: #000;
    transform: rotateY(180deg);
}

/* ==========================================================================
   E-003: グリッチ効果
   ========================================================================== */
.ve-glitch {
    position: relative;
    display: inline-block;
}

.ve-glitch-text {
    position: relative;
    font-size: 2rem;
    font-weight: bold;
    color: var(--color-text);
}

.ve-glitch-text::before,
.ve-glitch-text::after {
    content: attr(data-text);
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    opacity: 0;
}

.ve-glitch:hover .ve-glitch-text::before {
    animation: ve-glitch-1 0.3s infinite;
    color: #ff00ff;
    opacity: 0.8;
}

.ve-glitch:hover .ve-glitch-text::after {
    animation: ve-glitch-2 0.3s infinite;
    color: #00ffff;
    opacity: 0.8;
}

@keyframes ve-glitch-1 {
    0%, 100% { transform: translate(0); }
    20% { transform: translate(-3px, 3px); }
    40% { transform: translate(-3px, -3px); }
    60% { transform: translate(3px, 3px); }
    80% { transform: translate(3px, -3px); }
}

@keyframes ve-glitch-2 {
    0%, 100% { transform: translate(0); }
    20% { transform: translate(3px, -3px); }
    40% { transform: translate(3px, 3px); }
    60% { transform: translate(-3px, -3px); }
    80% { transform: translate(-3px, 3px); }
}

/* ==========================================================================
   E-004: パララックス
   ========================================================================== */
.ve-parallax {
    position: relative;
    height: 300px;
    overflow: hidden;
}

.ve-parallax-bg {
    position: absolute;
    top: -50%;
    left: 0;
    width: 100%;
    height: 200%;
    background-size: cover;
    background-position: center;
    background-attachment: fixed;
}

.ve-parallax-content {
    position: relative;
    z-index: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    height: 100%;
    color: #fff;
    text-shadow: 0 2px 10px rgba(0, 0, 0, 0.5);
}

/* ==========================================================================
   E-005: スクロール連動アニメ
   ========================================================================== */
.ve-scroll-animate {
    opacity: 0;
    transform: translateY(50px);
    transition: all 0.8s ease-out;
}

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

.ve-scroll-animate.ve-fade-left {
    transform: translateX(-50px);
}

.ve-scroll-animate.ve-fade-left.ve-visible {
    transform: translateX(0);
}

.ve-scroll-animate.ve-fade-right {
    transform: translateX(50px);
}

.ve-scroll-animate.ve-fade-right.ve-visible {
    transform: translateX(0);
}

.ve-scroll-animate.ve-scale {
    transform: scale(0.8);
}

.ve-scroll-animate.ve-scale.ve-visible {
    transform: scale(1);
}

/* ==========================================================================
   E-006: 文字タイピング
   ========================================================================== */
.ve-typing {
    display: inline-block;
    overflow: hidden;
    white-space: nowrap;
    border-right: 3px solid var(--color-accent);
    animation: ve-typing-cursor 0.7s infinite;
}

.ve-typing.ve-typing-active {
    animation: ve-typing-text 3s steps(30) forwards, ve-typing-cursor 0.7s infinite;
}

@keyframes ve-typing-text {
    from { width: 0; }
    to { width: 100%; }
}

@keyframes ve-typing-cursor {
    0%, 100% { border-color: var(--color-accent); }
    50% { border-color: transparent; }
}

/* ==========================================================================
   E-007: グラデーションアニメ
   ========================================================================== */
.ve-gradient-animate {
    background: linear-gradient(-45deg, #00d9ff, #0096c8, #00ffd9, #00c8ff);
    background-size: 400% 400%;
    animation: ve-gradient-shift 8s ease infinite;
}

@keyframes ve-gradient-shift {
    0% { background-position: 0% 50%; }
    50% { background-position: 100% 50%; }
    100% { background-position: 0% 50%; }
}

/* ==========================================================================
   E-008: 背景パターン動き
   ========================================================================== */
.ve-pattern-move {
    position: relative;
    overflow: hidden;
}

.ve-pattern-move::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 200%;
    height: 200%;
    background-image:
        radial-gradient(circle, rgba(0, 217, 255, 0.5) 2px, transparent 2px);
    background-size: 30px 30px;
    animation: ve-pattern-slide 20s linear infinite;
}

@keyframes ve-pattern-slide {
    0% { transform: translate(0, 0); }
    100% { transform: translate(-50%, -50%); }
}

/* ==========================================================================
   E-009: マウス追従
   ========================================================================== */
.ve-mouse-follow-area {
    position: relative;
    overflow: hidden;
}

.ve-mouse-follower {
    position: absolute;
    width: 60px;
    height: 60px;
    background: radial-gradient(circle, rgba(0, 217, 255, 0.6) 0%, transparent 70%);
    border-radius: 50%;
    pointer-events: none;
    transform: translate(-50%, -50%);
    transition: transform 0.1s ease-out;
    opacity: 0;
}

.ve-mouse-follow-area:hover .ve-mouse-follower {
    opacity: 1;
}

/* ==========================================================================
   E-010: ローディングアニメ
   ========================================================================== */
.ve-loading-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: var(--color-bg);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 9999;
    transition: opacity 0.5s ease, visibility 0.5s ease;
}

.ve-loading-overlay.ve-loaded {
    opacity: 0;
    visibility: hidden;
}

.ve-loading-spinner {
    width: 50px;
    height: 50px;
    border: 3px solid var(--color-border);
    border-top-color: var(--color-accent);
    border-radius: 50%;
    animation: ve-spin 1s linear infinite;
}

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

/* ローディングバー版 */
.ve-loading-bar {
    width: 200px;
    height: 4px;
    background: var(--color-border);
    border-radius: 2px;
    overflow: hidden;
}

.ve-loading-bar::after {
    content: '';
    display: block;
    width: 50%;
    height: 100%;
    background: var(--color-accent);
    animation: ve-loading-progress 1.5s ease-in-out infinite;
}

@keyframes ve-loading-progress {
    0% { transform: translateX(-100%); }
    100% { transform: translateX(300%); }
}

/* ==========================================================================
   E-011: スライダー/カルーセル
   ========================================================================== */
.ve-slider {
    position: relative;
    overflow: hidden;
}

.ve-slider-track {
    display: flex;
    transition: transform 0.5s ease;
}

.ve-slider-slide {
    flex: 0 0 100%;
    min-width: 100%;
}

.ve-slider-nav {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    width: 40px;
    height: 40px;
    background: rgba(0, 0, 0, 0.5);
    border: none;
    border-radius: 50%;
    color: #fff;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: background 0.3s ease;
    z-index: 10;
}

.ve-slider-nav:hover {
    background: var(--color-accent);
}

.ve-slider-prev { left: 10px; }
.ve-slider-next { right: 10px; }

.ve-slider-dots {
    display: flex;
    justify-content: center;
    gap: 8px;
    margin-top: 15px;
}

.ve-slider-dot {
    width: 10px;
    height: 10px;
    background: var(--color-border);
    border: none;
    border-radius: 50%;
    cursor: pointer;
    transition: background 0.3s ease;
}

.ve-slider-dot.ve-active {
    background: var(--color-accent);
}

/* ==========================================================================
   E-012: モーダル
   ========================================================================== */
.ve-modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.8);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s ease;
    z-index: 10000;
}

.ve-modal-overlay.ve-modal-open {
    opacity: 1;
    visibility: visible;
}

.ve-modal {
    background: var(--color-card);
    border-radius: var(--border-radius);
    max-width: 600px;
    width: 90%;
    max-height: 80vh;
    overflow-y: auto;
    transform: scale(0.9) translateY(20px);
    transition: transform 0.3s ease;
}

.ve-modal-overlay.ve-modal-open .ve-modal {
    transform: scale(1) translateY(0);
}

.ve-modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px;
    border-bottom: 1px solid var(--color-border);
}

.ve-modal-close {
    width: 30px;
    height: 30px;
    background: none;
    border: none;
    color: var(--color-text-sub);
    font-size: 1.5rem;
    cursor: pointer;
    transition: color 0.3s ease;
}

.ve-modal-close:hover {
    color: var(--color-accent);
}

.ve-modal-body {
    padding: 20px;
}

/* ==========================================================================
   E-013: タブ切り替え
   ========================================================================== */
.ve-tabs {
    width: 100%;
}

.ve-tabs-nav {
    display: flex;
    border-bottom: 2px solid var(--color-border);
}

.ve-tab-btn {
    padding: 12px 24px;
    background: none;
    border: none;
    color: var(--color-text-sub);
    font-size: 1rem;
    cursor: pointer;
    position: relative;
    transition: color 0.3s ease;
}

.ve-tab-btn::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    width: 100%;
    height: 2px;
    background: var(--color-accent);
    transform: scaleX(0);
    transition: transform 0.3s ease;
}

.ve-tab-btn:hover {
    color: var(--color-text);
}

.ve-tab-btn.ve-active {
    color: var(--color-accent);
}

.ve-tab-btn.ve-active::after {
    transform: scaleX(1);
}

.ve-tab-content {
    display: none;
    padding: 20px 0;
    animation: ve-tab-fade 0.3s ease;
}

.ve-tab-content.ve-active {
    display: block;
}

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

/* ==========================================================================
   E-014: アコーディオン
   ========================================================================== */
.ve-accordion {
    border: 1px solid var(--color-border);
    border-radius: var(--border-radius);
    overflow: hidden;
}

.ve-accordion-item {
    border-bottom: 1px solid var(--color-border);
}

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

.ve-accordion-header {
    width: 100%;
    padding: 20px;
    background: var(--color-card);
    border: none;
    text-align: left;
    font-size: 1rem;
    color: var(--color-text);
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
    transition: background 0.3s ease;
}

.ve-accordion-header:hover {
    background: rgba(0, 217, 255, 0.05);
}

.ve-accordion-icon {
    width: 20px;
    height: 20px;
    position: relative;
    flex-shrink: 0;
}

.ve-accordion-icon::before,
.ve-accordion-icon::after {
    content: '';
    position: absolute;
    background: var(--color-accent);
    transition: transform 0.3s ease;
}

.ve-accordion-icon::before {
    width: 100%;
    height: 2px;
    top: 50%;
    left: 0;
    transform: translateY(-50%);
}

.ve-accordion-icon::after {
    width: 2px;
    height: 100%;
    left: 50%;
    top: 0;
    transform: translateX(-50%);
}

.ve-accordion-item.ve-open .ve-accordion-icon::after {
    transform: translateX(-50%) rotate(90deg);
}

.ve-accordion-body {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease;
}

.ve-accordion-item.ve-open .ve-accordion-body {
    max-height: 500px;
}

.ve-accordion-content {
    padding: 0 20px 20px;
    color: var(--color-text-sub);
    line-height: 1.8;
}

/* ==========================================================================
   デモ用共通スタイル
   ========================================================================== */
.ve-demo-box {
    background: var(--color-card);
    border: 1px solid var(--color-border);
    border-radius: var(--border-radius);
    padding: 30px;
    text-align: center;
    color: var(--color-text);
}

.ve-demo-image {
    width: 100%;
    height: 200px;
    background: linear-gradient(135deg, #1a1a2e 0%, #16213e 100%);
    border-radius: var(--border-radius);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-text-sub);
}

/* ==========================================================================
   モバイルヒント（スマホ用補足）
   ========================================================================== */
.ve-mobile-hint {
    color: var(--color-accent);
    font-size: 0.85em;
    opacity: 0.9;
}

@media (min-width: 769px) {
    /* PCでは少し控えめに */
    .ve-mobile-hint {
        opacity: 0.7;
    }
}

@media (max-width: 768px) {
    /* モバイルでは目立つように */
    .ve-mobile-hint {
        display: block;
        margin-top: 5px;
        font-size: 0.9em;
    }
}