/* ===================================================
   STANDARD ZONE TECHNOLOGIES - PORTFOLIO PAGE STYLES
   =================================================== */

/* ===================== PORTFOLIO STATS ===================== */
.portfolio-stats-row {
    margin-top: 50px !important;
}

.pstat-card {
    background: var(--white);
    padding: 35px 25px;
    border-radius: 22px;
    text-align: center;
    box-shadow: var(--shadow-md);
    transition: var(--transition);
    border: 1px solid #f0f0f0;
    position: relative;
    overflow: hidden;
}

.pstat-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 4px;
    background: var(--gradient-primary);
    transform: scaleX(0);
    transform-origin: left;
    transition: transform 0.4s ease;
}

.pstat-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-xl);
}

.pstat-card:hover::before {
    transform: scaleX(1);
}

.pstat-icon {
    width: 65px;
    height: 65px;
    background: linear-gradient(135deg, rgba(13, 71, 161, 0.12) 0%, rgba(25, 118, 210, 0.12) 100%);
    border-radius: 18px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 30px;
    color: var(--primary-color);
    margin: 0 auto 18px;
    transition: var(--transition);
}

.pstat-card:hover .pstat-icon {
    background: var(--gradient-primary);
    color: var(--white);
    transform: rotateY(360deg);
}

.pstat-card .stat-number {
    font-size: 42px;
    font-weight: 800;
    color: var(--dark-color);
    line-height: 1;
    display: inline-block;
    margin: 0;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.stat-plus-dark {
    font-size: 36px;
    font-weight: 800;
    color: var(--accent-color);
    vertical-align: top;
}

.pstat-card p {
    color: var(--text-light);
    margin: 8px 0 0;
    font-size: 14px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1px;
}

/* ===================== PORTFOLIO FILTERS ===================== */
.portfolio-filters {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 12px;
    margin-bottom: 20px;
}

.portfolio-filter-btn {
    background: var(--white);
    color: var(--text-dark);
    border: 2px solid #e9ecef;
    padding: 10px 25px;
    border-radius: 50px;
    font-weight: 600;
    font-size: 14px;
    cursor: pointer;
    transition: var(--transition);
    position: relative;
    overflow: hidden;
    z-index: 1;
}

.portfolio-filter-btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: var(--gradient-primary);
    transform: scaleX(0);
    transform-origin: right;
    transition: transform 0.4s ease;
    z-index: -1;
}

.portfolio-filter-btn:hover::before,
.portfolio-filter-btn.active::before {
    transform: scaleX(1);
    transform-origin: left;
}

.portfolio-filter-btn:hover,
.portfolio-filter-btn.active {
    color: var(--white);
    border-color: var(--primary-color);
    box-shadow: 0 8px 20px rgba(13, 71, 161, 0.3);
    transform: translateY(-2px);
}

/* ===================== PORTFOLIO CARDS ===================== */
.portfolio-item {
    transition: all 0.4s ease;
}

.portfolio-card {
    background: var(--white);
    border-radius: 22px;
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
    border: 1px solid #f0f0f0;
    height: 100%;
    display: flex;
    flex-direction: column;
}

.portfolio-card:hover {
    transform: translateY(-12px);
    box-shadow: var(--shadow-xl);
    border-color: transparent;
}

.portfolio-img {
    position: relative;
    height: 240px;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
}

.portfolio-img::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: radial-gradient(circle at center, transparent 0%, rgba(0, 0, 0, 0.2) 100%);
}

.portfolio-icon {
    font-size: 100px;
    color: rgba(255, 255, 255, 0.95);
    text-shadow: 0 8px 25px rgba(0, 0, 0, 0.2);
    transition: transform 0.5s ease;
    position: relative;
    z-index: 1;
}

.portfolio-card:hover .portfolio-icon {
    transform: scale(0.7);
}

.portfolio-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, rgba(13, 71, 161, 0.95) 0%, rgba(26, 26, 46, 0.95) 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: opacity 0.4s ease;
    z-index: 2;
}

.portfolio-card:hover .portfolio-overlay {
    opacity: 1;
}

.portfolio-overlay-content {
    text-align: center;
    color: var(--white);
    padding: 20px;
    transform: translateY(20px);
    transition: transform 0.4s ease;
}

.portfolio-card:hover .portfolio-overlay-content {
    transform: translateY(0);
}

.portfolio-cat {
    display: inline-block;
    padding: 5px 15px;
    background: rgba(255, 255, 255, 0.2);
    border: 1px solid rgba(255, 255, 255, 0.3);
    border-radius: 50px;
    font-size: 11px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1.5px;
    margin-bottom: 15px;
    backdrop-filter: blur(10px);
}

.portfolio-overlay h4 {
    font-size: 22px;
    font-weight: 700;
    color: var(--white);
    margin-bottom: 20px;
}

.portfolio-view-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 55px;
    height: 55px;
    background: var(--gradient-accent);
    color: var(--white);
    border-radius: 50%;
    font-size: 24px;
    box-shadow: 0 10px 25px rgba(255, 111, 0, 0.4);
    transition: var(--transition);
    text-decoration: none;
}

.portfolio-view-btn:hover {
    color: var(--white);
    transform: rotate(45deg) scale(1.1);
    box-shadow: 0 15px 30px rgba(255, 111, 0, 0.55);
}

.portfolio-info {
    padding: 28px 25px;
    flex-grow: 1;
    display: flex;
    flex-direction: column;
}

.portfolio-tag {
    display: inline-block;
    padding: 4px 14px;
    background: rgba(13, 71, 161, 0.1);
    color: var(--primary-color);
    border-radius: 50px;
    font-size: 11px;
    font-weight: 700;
    letter-spacing: 1px;
    text-transform: uppercase;
    margin-bottom: 14px;
    align-self: flex-start;
}

.portfolio-info h5 {
    font-size: 18px;
    font-weight: 700;
    color: var(--dark-color);
    margin-bottom: 12px;
    line-height: 1.4;
    transition: var(--transition);
}

.portfolio-card:hover .portfolio-info h5 {
    color: var(--primary-color);
}

.portfolio-info p {
    color: var(--text-light);
    font-size: 14px;
    line-height: 1.7;
    margin-bottom: 18px;
    flex-grow: 1;
}

.portfolio-tech {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    padding-top: 15px;
    border-top: 1px solid #f0f0f0;
}

.portfolio-tech span {
    background: #f0f4f8;
    color: var(--text-dark);
    padding: 5px 14px;
    border-radius: 50px;
    font-size: 12px;
    font-weight: 600;
    transition: var(--transition);
}

.portfolio-tech span:hover {
    background: var(--gradient-primary);
    color: var(--white);
    transform: translateY(-2px);
}

/* ===================== CASE STUDY SECTION ===================== */
.case-study-section {
    position: relative;
    overflow: hidden;
}

.case-study-card {
    background: var(--white);
    border-radius: 30px;
    box-shadow: var(--shadow-lg);
    overflow: hidden;
    border: 1px solid #f0f0f0;
    transition: var(--transition);
}

.case-study-card:hover {
    box-shadow: var(--shadow-xl);
}

.cs-visual {
    background: var(--gradient-dark);
    height: 100%;
    min-height: 450px;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    overflow: hidden;
}

.cs-visual::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background:
        radial-gradient(circle at 30% 30%, rgba(13, 71, 161, 0.5) 0%, transparent 50%),
        radial-gradient(circle at 70% 70%, rgba(255, 111, 0, 0.3) 0%, transparent 50%);
}

.cs-icon-main {
    width: 180px;
    height: 180px;
    background: var(--gradient-primary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--white);
    font-size: 80px;
    box-shadow: 0 20px 60px rgba(13, 71, 161, 0.6);
    position: relative;
    z-index: 1;
    animation: csPulse 3s ease-in-out infinite;
}

@keyframes csPulse {
    0%, 100% { transform: scale(1); }
    50% { transform: scale(1.05); }
}

.cs-floating {
    position: absolute;
    width: 65px;
    height: 65px;
    background: var(--white);
    border-radius: 18px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 28px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
    animation: floatAnim 4s ease-in-out infinite;
    z-index: 2;
}

.cs-float-1 {
    top: 15%;
    left: 12%;
    color: #2e7d32;
    animation-delay: 0s;
}

.cs-float-2 {
    top: 65%;
    left: 15%;
    color: var(--primary-color);
    animation-delay: 1s;
}

.cs-float-3 {
    top: 25%;
    right: 12%;
    color: var(--accent-color);
    animation-delay: 2s;
}

.cs-content {
    padding: 50px 45px;
}

.cs-category {
    display: inline-block;
    padding: 6px 18px;
    background: rgba(13, 71, 161, 0.1);
    color: var(--primary-color);
    border-radius: 50px;
    font-size: 12px;
    font-weight: 700;
    letter-spacing: 1.5px;
    text-transform: uppercase;
    margin-bottom: 18px;
}

.cs-content h3 {
    font-size: 30px;
    font-weight: 800;
    color: var(--dark-color);
    margin-bottom: 18px;
    line-height: 1.3;
}

.cs-content > p {
    color: var(--text-light);
    font-size: 15px;
    line-height: 1.8;
    margin-bottom: 30px;
}

.cs-results {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
    padding: 25px 0;
    border-top: 2px solid #f0f4f8;
    border-bottom: 2px solid #f0f4f8;
}

.cs-result-item {
    text-align: center;
}

.cs-result-num {
    display: block;
    font-size: 32px;
    font-weight: 800;
    font-family: var(--font-heading);
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    line-height: 1;
    margin-bottom: 6px;
}

.cs-result-label {
    font-size: 12px;
    color: var(--text-light);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.8px;
}

/* ===================== TESTIMONIALS ===================== */
.testimonials-section {
    position: relative;
    overflow: hidden;
}

.testimonial-card {
    background: var(--white);
    padding: 40px 30px;
    border-radius: 22px;
    box-shadow: var(--shadow-md);
    transition: var(--transition);
    height: 100%;
    border: 1px solid #f0f0f0;
    position: relative;
    overflow: hidden;
}

.testimonial-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 5px;
    background: var(--gradient-primary);
    transform: scaleX(0);
    transform-origin: left;
    transition: transform 0.4s ease;
}

.testimonial-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-xl);
}

.testimonial-card:hover::before {
    transform: scaleX(1);
}

.testimonial-quote {
    position: absolute;
    top: 25px;
    right: 25px;
    font-size: 70px;
    color: var(--primary-color);
    opacity: 0.1;
    line-height: 1;
    transition: var(--transition);
}

.testimonial-card:hover .testimonial-quote {
    opacity: 0.2;
    transform: scale(1.1);
}

.testimonial-rating {
    display: flex;
    gap: 4px;
    margin-bottom: 20px;
    position: relative;
    z-index: 1;
}

.testimonial-rating i {
    color: #ffa726;
    font-size: 16px;
}

.testimonial-text {
    color: var(--text-dark);
    font-size: 15px;
    line-height: 1.8;
    margin-bottom: 25px;
    font-style: italic;
    position: relative;
    z-index: 1;
}

.testimonial-author {
    display: flex;
    align-items: center;
    gap: 15px;
    padding-top: 20px;
    border-top: 1px solid #f0f0f0;
    position: relative;
    z-index: 1;
}

.ta-avatar {
    width: 55px;
    height: 55px;
    background: var(--gradient-primary);
    color: var(--white);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 18px;
    font-family: var(--font-heading);
    letter-spacing: 0.5px;
    box-shadow: 0 6px 15px rgba(13, 71, 161, 0.3);
    flex-shrink: 0;
    transition: var(--transition);
}

.testimonial-card:hover .ta-avatar {
    background: var(--gradient-accent);
    box-shadow: 0 6px 15px rgba(255, 111, 0, 0.4);
    transform: rotate(360deg);
}

.ta-info h6 {
    font-size: 16px;
    font-weight: 700;
    color: var(--dark-color);
    margin: 0 0 3px;
}

.ta-info span {
    font-size: 13px;
    color: var(--text-light);
    font-weight: 500;
}

/* ===================== RESPONSIVE STYLES ===================== */
@media (max-width: 991px) {
    .pstat-card {
        padding: 30px 20px;
    }

    .pstat-card .stat-number {
        font-size: 36px;
    }

    .pstat-icon {
        width: 58px;
        height: 58px;
        font-size: 26px;
    }

    .portfolio-img {
        height: 220px;
    }

    .portfolio-icon {
        font-size: 80px;
    }

    .cs-visual {
        min-height: 350px;
        padding: 40px 20px;
    }

    .cs-icon-main {
        width: 150px;
        height: 150px;
        font-size: 65px;
    }

    .cs-content {
        padding: 40px 35px;
    }

    .cs-content h3 {
        font-size: 26px;
    }

    .cs-results {
        grid-template-columns: repeat(2, 1fr);
        gap: 25px;
    }
}

@media (max-width: 767px) {
    .portfolio-filters {
        gap: 8px;
    }

    .portfolio-filter-btn {
        padding: 8px 16px;
        font-size: 12.5px;
    }

    .pstat-card {
        padding: 25px 18px;
    }

    .pstat-card .stat-number {
        font-size: 30px;
    }

    .stat-plus-dark {
        font-size: 26px;
    }

    .pstat-icon {
        width: 52px;
        height: 52px;
        font-size: 22px;
        margin-bottom: 12px;
    }

    .pstat-card p {
        font-size: 12px;
    }

    .portfolio-img {
        height: 200px;
    }

    .portfolio-icon {
        font-size: 70px;
    }

    .portfolio-overlay h4 {
        font-size: 18px;
    }

    .portfolio-view-btn {
        width: 48px;
        height: 48px;
        font-size: 20px;
    }

    .portfolio-info {
        padding: 22px 20px;
    }

    .portfolio-info h5 {
        font-size: 16px;
    }

    .cs-icon-main {
        width: 130px;
        height: 130px;
        font-size: 55px;
    }

    .cs-floating {
        width: 50px;
        height: 50px;
        font-size: 22px;
        border-radius: 14px;
    }

    .cs-content {
        padding: 35px 25px;
    }

    .cs-content h3 {
        font-size: 22px;
    }

    .cs-content > p {
        font-size: 14px;
    }

    .cs-result-num {
        font-size: 26px;
    }

    .cs-result-label {
        font-size: 11px;
    }

    .testimonial-card {
        padding: 35px 25px;
    }

    .testimonial-quote {
        font-size: 60px;
        top: 20px;
        right: 20px;
    }

    .testimonial-text {
        font-size: 14px;
    }
}

@media (max-width: 575px) {
    .portfolio-filters {
        flex-direction: column;
        align-items: stretch;
        gap: 8px;
        padding: 0 20px;
    }

    .portfolio-filter-btn {
        width: 100%;
    }

    .cs-visual {
        min-height: 280px;
    }

    .cs-icon-main {
        width: 110px;
        height: 110px;
        font-size: 45px;
    }

    .cs-results {
        grid-template-columns: repeat(2, 1fr);
        gap: 18px;
    }

    .cs-result-num {
        font-size: 22px;
    }

    .testimonial-author {
        gap: 12px;
    }

    .ta-avatar {
        width: 48px;
        height: 48px;
        font-size: 16px;
    }
}