/**
 * استایل فرانت‌اند کروسل نمونه کار
 * 
 * @package Developer_Portfolio
 * @since 1.0.0
 */

/* ============================================
   متغیرهای CSS
   ============================================ */
:root {
    --dvp-primary: #0088cc;
    --dvp-white: #ffffff;
    --dvp-text: #444444;
    --dvp-text-light: #555555;
    --dvp-bg-gradient: linear-gradient(180deg, #dceffa 0%, #f4fcff 100%);
    --dvp-shadow: 0 15px 35px rgba(0, 0, 0, 0.1);
    --dvp-shadow-hover: 0 20px 50px rgba(0, 136, 204, 0.25);
    --dvp-transition: all 0.5s cubic-bezier(0.25, 1, 0.5, 1);
    --dvp-card-width: 300px;
    --dvp-card-height: 380px;
}

/* ============================================
   Wrapper اصلی
   ============================================ */
.dvp-portfolio-wrapper {
    font-family: 'Vazirmatn', Tahoma, Arial, sans-serif;
    direction: rtl;
    text-align: right;
    padding: 40px 0;
    overflow: hidden;
}

/* ============================================
   تب‌ها
   ============================================ */
.dvp-tabs-container {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 10px;
    padding: 0 20px;
    margin-bottom: 30px;
}

.dvp-tab-btn {
    background-color: rgba(0, 136, 204, 0.1);
    border: none;
    padding: 10px 20px;
    border-radius: 12px;
    cursor: pointer;
    font-family: inherit;
    font-size: 0.95rem;
    color: var(--dvp-text);
    transition: all 0.3s ease;
}

.dvp-tab-btn:hover {
    background-color: rgba(0, 136, 204, 0.15);
}

.dvp-tab-btn.active {
    background-color: var(--dvp-white);
    color: var(--dvp-primary);
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.08);
    font-weight: bold;
}

/* ============================================
   کروسل
   ============================================ */
.dvp-carousel-wrapper {
    position: relative;
    width: 100%;
    max-width: 1200px;
    height: 460px;
    margin: 0 auto 30px;
    display: flex;
    justify-content: center;
    align-items: center;
}

.dvp-carousel-track {
    position: relative;
    width: 100%;
    height: 100%;
    display: flex;
    justify-content: center;
    align-items: center;
    transition: opacity 0.4s ease;
}

.dvp-carousel-track.hidden {
    opacity: 0;
    pointer-events: none;
}

/* ============================================
   کارت‌های کروسل
   ============================================ */
.dvp-carousel-item {
    position: absolute;
    width: var(--dvp-card-width);
    height: var(--dvp-card-height);
    background: var(--dvp-white);
    border-radius: 16px;
    box-shadow: var(--dvp-shadow);
    transition: var(--dvp-transition);
    overflow: hidden;
    display: flex;
    flex-direction: column;
    cursor: pointer;
    left: 50%;
    top: 50%;
    transform: translate(-50%, -50%);
}

.dvp-carousel-item img {
    width: 100%;
    height: 65%;
    object-fit: cover;
    pointer-events: none;
    user-select: none;
}

.dvp-card-caption {
    padding: 15px;
    text-align: center;
    color: var(--dvp-primary);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    height: 35%;
    pointer-events: none;
}

.dvp-card-caption h3 {
    margin: 0 0 8px 0;
    font-size: 1.1rem;
    font-weight: 600;
}

.dvp-card-caption span {
    font-size: 0.85rem;
    opacity: 0.8;
}

/* ============================================
   موقعیت‌های کارت‌ها
   ============================================ */
.dvp-item-center {
    z-index: 50;
    left: 50%;
    transform: translate(-50%, -50%) scale(1.1);
    opacity: 1;
}

.dvp-item-center:hover {
    box-shadow: var(--dvp-shadow-hover);
}

.dvp-item-left-1 {
    z-index: 40;
    left: calc(50% - 280px);
    transform: translate(-50%, -50%) scale(0.9);
    opacity: 0.85;
}

.dvp-item-right-1 {
    z-index: 40;
    left: calc(50% + 280px);
    transform: translate(-50%, -50%) scale(0.9);
    opacity: 0.85;
}

.dvp-item-left-1:hover,
.dvp-item-right-1:hover {
    opacity: 1;
    box-shadow: 0 18px 45px rgba(0, 0, 0, 0.2);
    transform: translate(-50%, -50%) scale(0.95);
}

.dvp-item-left-2 {
    z-index: 30;
    left: calc(50% - 480px);
    transform: translate(-50%, -50%) scale(0.75);
    opacity: 0.6;
}

.dvp-item-right-2 {
    z-index: 30;
    left: calc(50% + 480px);
    transform: translate(-50%, -50%) scale(0.75);
    opacity: 0.6;
}

.dvp-item-left-2:hover,
.dvp-item-right-2:hover {
    opacity: 0.8;
    transform: translate(-50%, -50%) scale(0.8);
}

.dvp-item-left-3 {
    z-index: 20;
    left: calc(50% - 620px);
    transform: translate(-50%, -50%) scale(0.6);
    opacity: 0.3;
}

.dvp-item-right-3 {
    z-index: 20;
    left: calc(50% + 620px);
    transform: translate(-50%, -50%) scale(0.6);
    opacity: 0.3;
}

.dvp-item-hidden {
    z-index: 0;
    opacity: 0;
    transform: translate(-50%, -50%) scale(0);
    pointer-events: none;
}

/* ============================================
   دکمه‌های ناوبری
   ============================================ */
.dvp-nav-btn {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    background: rgba(255, 255, 255, 0.9);
    border-radius: 50%;
    width: 50px;
    height: 50px;
    border: 1px solid #ddd;
    color: var(--dvp-primary);
    font-size: 1.4rem;
    cursor: pointer;
    z-index: 100;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.3s ease;
}

.dvp-nav-btn:hover {
    background: var(--dvp-white);
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.15);
}

.dvp-prev-btn {
    left: 5%;
}

.dvp-next-btn {
    right: 5%;
}

/* ============================================
   توضیحات
   ============================================ */
.dvp-description-box {
    width: 90%;
    max-width: 800px;
    text-align: center;
    margin: 0 auto 20px;
    padding: 0 20px;
    color: var(--dvp-text-light);
    line-height: 1.8;
    font-size: 0.95rem;
    min-height: 60px;
    transition: opacity 0.4s ease;
}

/* ============================================
   دکمه CTA
   ============================================ */
.dvp-cta-container {
    display: flex;
    justify-content: center;
    padding: 20px;
}

.dvp-cta-btn {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 5px 5px 5px 25px;
    border: 2px solid var(--dvp-primary);
    border-radius: 50px;
    text-decoration: none;
    color: var(--dvp-primary);
    transition: all 0.3s ease;
    font-family: inherit;
}

.dvp-cta-btn:hover {
    background: rgba(0, 136, 204, 0.05);
    text-decoration: none;
    color: var(--dvp-primary);
}

.dvp-cta-btn span {
    background: var(--dvp-primary);
    color: white;
    padding: 10px 24px;
    border-radius: 50px;
}

.dvp-cta-btn svg {
    width: 20px;
    height: 20px;
    stroke: var(--dvp-primary);
}

/* ============================================
   پیام خالی
   ============================================ */
.dvp-no-items {
    text-align: center;
    padding: 40px;
    color: var(--dvp-text-light);
    font-family: 'Vazirmatn', Tahoma, sans-serif;
}

/* ============================================
   ریسپانسیو - تبلت
   ============================================ */
@media (max-width: 1100px) {
    .dvp-item-left-1 {
        left: calc(50% - 240px);
    }
    .dvp-item-right-1 {
        left: calc(50% + 240px);
    }
    .dvp-item-left-2 {
        left: calc(50% - 420px);
    }
    .dvp-item-right-2 {
        left: calc(50% + 420px);
    }
    .dvp-item-left-3,
    .dvp-item-right-3 {
        opacity: 0;
        pointer-events: none;
    }
}

@media (max-width: 900px) {
    .dvp-item-left-1 {
        left: calc(50% - 200px);
    }
    .dvp-item-right-1 {
        left: calc(50% + 200px);
    }
    .dvp-item-left-2,
    .dvp-item-right-2 {
        opacity: 0;
        pointer-events: none;
    }
}

/* ============================================
   ریسپانسیو - موبایل
   ============================================ */
@media (max-width: 600px) {
    :root {
        --dvp-card-width: 220px;
        --dvp-card-height: 320px;
    }

    .dvp-carousel-wrapper {
        height: 400px;
    }

    .dvp-item-center {
        transform: translate(-50%, -50%) scale(1.05);
    }

    .dvp-item-left-1 {
        left: calc(50% - 150px);
        transform: translate(-50%, -50%) scale(0.85);
        opacity: 0.6;
    }

    .dvp-item-right-1 {
        left: calc(50% + 150px);
        transform: translate(-50%, -50%) scale(0.85);
        opacity: 0.6;
    }

    .dvp-item-left-2,
    .dvp-item-right-2,
    .dvp-item-left-3,
    .dvp-item-right-3 {
        opacity: 0;
        pointer-events: none;
    }

    .dvp-nav-btn {
        width: 40px;
        height: 40px;
        font-size: 1.1rem;
    }

    .dvp-prev-btn {
        left: 2%;
    }

    .dvp-next-btn {
        right: 2%;
    }

    .dvp-tabs-container {
        gap: 8px;
    }

    .dvp-tab-btn {
        padding: 8px 14px;
        font-size: 0.85rem;
    }

    .dvp-description-box {
        font-size: 0.9rem;
        min-height: 50px;
    }

    .dvp-cta-btn {
        padding: 4px 4px 4px 18px;
        font-size: 0.9rem;
    }

    .dvp-cta-btn span {
        padding: 8px 18px;
    }
}

/* ============================================
   ریسپانسیو - موبایل کوچک
   ============================================ */
@media (max-width: 400px) {
    :root {
        --dvp-card-width: 200px;
        --dvp-card-height: 280px;
    }

    .dvp-carousel-wrapper {
        height: 350px;
    }

    .dvp-item-left-1 {
        left: calc(50% - 130px);
        transform: translate(-50%, -50%) scale(0.8);
        opacity: 0.5;
    }

    .dvp-item-right-1 {
        left: calc(50% + 130px);
        transform: translate(-50%, -50%) scale(0.8);
        opacity: 0.5;
    }

    .dvp-card-caption h3 {
        font-size: 1rem;
    }

    .dvp-card-caption span {
        font-size: 0.8rem;
    }
}