/* ===================================
   Education & Achievements Section
   Comprehensive Timeline, Certificates & Badges
   =================================== */

/* Section Container */
.education-achievements-section {
    background: linear-gradient(135deg, #0a0f1e 0%, #0d1220 50%, #0a0f1e 100%);
    padding: 5rem 0;
    position: relative;
    overflow: hidden;
}

.education-achievements-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent 0%, #06b6d4 50%, transparent 100%);
}

/* Section Header */
.section-header-edu {
    text-align: center;
    margin-bottom: 4rem;
}

.section-title-edu {
    font-size: clamp(1.75rem, 5vw, 2.5rem);
    font-weight: 700;
    color: #ffffff;
    margin-bottom: 0.75rem;
    display: inline-flex;
    align-items: center;
    gap: 1rem;
}

.section-title-edu i {
    color: #06b6d4;
    font-size: 0.9em;
}

.section-title-edu::after {
    content: '';
    display: block;
    width: 80px;
    height: 3px;
    background: linear-gradient(90deg, #06b6d4, #14b8a6);
    margin: 1rem auto 0;
    border-radius: 2px;
}

.section-subtitle-edu {
    font-size: 1.125rem;
    color: rgba(255, 255, 255, 0.7);
    margin-top: 1rem;
}

/* ===================================
   EDUCATION TIMELINE
   =================================== */

.education-timeline-wrapper {
    max-width: 1000px;
    margin: 0 auto 5rem;
    position: relative;
    padding: 2rem 0;
}

/* Vertical Timeline Line */
.education-timeline-wrapper::before {
    content: '';
    position: absolute;
    left: 2rem;
    top: 0;
    bottom: 0;
    width: 2px;
    background: linear-gradient(180deg, #06b6d4 0%, rgba(6, 182, 212, 0.3) 100%);
}

/* Timeline Item */
.timeline-item {
    position: relative;
    margin-bottom: 3rem;
    padding-left: 5rem;
    opacity: 0;
    transform: translateY(30px);
    transition: all 0.6s cubic-bezier(0.4, 0, 0.2, 1);
}

.timeline-item.animate-in {
    opacity: 1;
    transform: translateY(0);
}

/* Timeline Icon */
.timeline-icon {
    position: absolute;
    left: 1rem;
    top: 0.5rem;
    width: 48px;
    height: 48px;
    background: linear-gradient(135deg, #06b6d4, #14b8a6);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #0a0f1e;
    font-size: 1.25rem;
    box-shadow: 0 0 20px rgba(6, 182, 212, 0.5);
    border: 3px solid #0a0f1e;
    z-index: 2;
}

/* Timeline Content Card */
.timeline-content {
    background: linear-gradient(135deg, rgba(6, 182, 212, 0.08) 0%, rgba(20, 184, 166, 0.04) 100%);
    border: 1px solid rgba(6, 182, 212, 0.25);
    border-radius: 12px;
    padding: 1.75rem;
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.timeline-content::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 4px;
    height: 100%;
    background: linear-gradient(180deg, #06b6d4, #14b8a6);
}

.timeline-content:hover {
    transform: translateX(8px);
    border-color: rgba(6, 182, 212, 0.5);
    box-shadow: 0 8px 24px rgba(6, 182, 212, 0.2);
}

.timeline-institution {
    font-size: 1.25rem;
    font-weight: 700;
    color: #ffffff;
    margin-bottom: 0.5rem;
}

.timeline-degree {
    font-size: 1rem;
    color: #06b6d4;
    font-weight: 600;
    margin-bottom: 0.5rem;
}

.timeline-details {
    font-size: 0.9375rem;
    color: rgba(255, 255, 255, 0.65);
    margin-bottom: 0.25rem;
}

.timeline-period {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.875rem;
    color: #14b8a6;
    font-weight: 600;
    margin-top: 0.75rem;
}

/* Desktop: Alternating Layout */
@media (min-width: 769px) {
    .education-timeline-wrapper::before {
        left: 50%;
        transform: translateX(-50%);
    }

    .timeline-item:nth-child(odd) {
        padding-left: 0;
        padding-right: calc(50% + 3rem);
        text-align: right;
    }

    .timeline-item:nth-child(even) {
        padding-left: calc(50% + 3rem);
        padding-right: 0;
        text-align: left;
    }

    .timeline-item:nth-child(odd) .timeline-icon {
        left: auto;
        right: calc(50% - 24px);
    }

    .timeline-item:nth-child(even) .timeline-icon {
        left: calc(50% - 24px);
        right: auto;
    }

    .timeline-item:nth-child(odd) .timeline-content:hover {
        transform: translateX(-8px);
    }
}

/* ===================================
   PITP PROGRAM CERTIFICATES
   =================================== */

.pitp-certificates-wrapper {
    margin-bottom: 5rem;
    max-width: 900px;
    margin-left: auto;
    margin-right: auto;
}

.pitp-certificates-header {
    text-align: center;
    margin-bottom: 2.5rem;
}

.pitp-certificates-title {
    font-size: clamp(1.5rem, 4vw, 2rem);
    font-weight: 700;
    color: #ffffff;
    margin-bottom: 0.5rem;
    display: inline-flex;
    align-items: center;
    gap: 0.75rem;
}

.pitp-certificates-title i {
    color: #14b8a6;
}

.pitp-certificates-subtitle {
    font-size: 0.95rem;
    color: rgba(255, 255, 255, 0.65);
    font-style: italic;
}

.pitp-certificates-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 1.75rem;
}

/* PITP Certificate Card */
.pitp-certificate-card {
    background: linear-gradient(135deg, rgba(20, 184, 166, 0.08) 0%, rgba(6, 182, 212, 0.04) 100%);
    border: 1px solid rgba(20, 184, 166, 0.3);
    border-radius: 14px;
    padding: 1.75rem;
    display: flex;
    gap: 1.25rem;
    align-items: flex-start;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    overflow: hidden;
    opacity: 0;
    transform: translateY(30px);
}

.pitp-certificate-card.animate-in {
    opacity: 1;
    transform: translateY(0);
}

.pitp-certificate-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 3px;
    background: linear-gradient(90deg, #14b8a6, #06b6d4);
}

.pitp-certificate-card:hover {
    transform: translateY(-6px);
    border-color: rgba(20, 184, 166, 0.6);
    box-shadow: 0 12px 32px rgba(20, 184, 166, 0.2);
}

/* PITP Certificate Icon */
.pitp-certificate-icon {
    width: 56px;
    height: 56px;
    background: linear-gradient(135deg, #14b8a6, #10b981);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #ffffff;
    font-size: 1.5rem;
    flex-shrink: 0;
    box-shadow: 0 6px 16px rgba(20, 184, 166, 0.3);
}

/* PITP Certificate Content */
.pitp-certificate-content {
    flex: 1;
}

.pitp-certificate-name {
    font-size: 1.125rem;
    font-weight: 700;
    color: #ffffff;
    margin-bottom: 0.5rem;
    line-height: 1.3;
}

.pitp-certificate-details {
    font-size: 0.9rem;
    color: rgba(255, 255, 255, 0.7);
    margin-bottom: 0.75rem;
}

.pitp-certificate-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.4rem 0.85rem;
    background: rgba(16, 185, 129, 0.15);
    border: 1px solid rgba(16, 185, 129, 0.3);
    border-radius: 20px;
    color: #10b981;
    font-size: 0.85rem;
    font-weight: 600;
}

.pitp-certificate-badge i {
    font-size: 0.9rem;
}

/* Responsive for PITP Certificates */
@media (max-width: 768px) {
    .pitp-certificates-grid {
        grid-template-columns: 1fr;
    }

    .pitp-certificate-card {
        padding: 1.5rem;
    }

    .pitp-certificate-icon {
        width: 48px;
        height: 48px;
        font-size: 1.25rem;
    }
}

/* ===================================
   CERTIFICATES GRID
   =================================== */

.certificates-wrapper {
    margin-bottom: 5rem;
}

.certificates-header {
    text-align: center;
    margin-bottom: 2.5rem;
}

.certificates-title {
    font-size: clamp(1.5rem, 4vw, 2rem);
    font-weight: 700;
    color: #ffffff;
    margin-bottom: 0.5rem;
}

.certificates-subtitle {
    font-size: 1rem;
    color: rgba(255, 255, 255, 0.6);
}

.certificates-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 1.5rem;
    max-width: 1200px;
    margin: 0 auto;
}

/* Certificate Card */
.certificate-card {
    background: linear-gradient(135deg, rgba(6, 182, 212, 0.05) 0%, rgba(20, 184, 166, 0.02) 100%);
    border: 1px solid rgba(6, 182, 212, 0.2);
    border-radius: 12px;
    padding: 1.5rem;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    opacity: 0;
    transform: translateY(30px);
    display: flex;
    gap: 1rem;
    align-items: flex-start;
}

.certificate-card.animate-in {
    opacity: 1;
    transform: translateY(0);
}

.certificate-card:hover {
    transform: translateY(-8px);
    border-color: rgba(6, 182, 212, 0.5);
    box-shadow: 0 12px 32px rgba(6, 182, 212, 0.15);
}

/* Certificate Content Wrapper */
.certificate-content {
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.certificate-logo {
    width: 48px;
    height: 48px;
    background: linear-gradient(135deg, #06b6d4, #14b8a6);
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #0a0f1e;
    font-weight: 700;
    font-size: 1.25rem;
    box-shadow: 0 4px 12px rgba(6, 182, 212, 0.3);
}

.certificate-name {
    font-size: 1rem;
    font-weight: 600;
    color: #ffffff;
    line-height: 1.4;
    margin-bottom: 0.5rem;
}

.certificate-provider {
    font-size: 0.875rem;
    color: #06b6d4;
    font-weight: 500;
}

.certificate-grade {
    display: inline-block;
    background: rgba(6, 182, 212, 0.15);
    border: 1px solid rgba(6, 182, 212, 0.3);
    color: #14b8a6;
    font-size: 0.8125rem;
    font-weight: 600;
    padding: 0.375rem 0.75rem;
    border-radius: 6px;
    margin-top: 0.5rem;
}

/* Verify Button */
.verify-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 0.65rem 1.25rem;
    background: linear-gradient(135deg, #06b6d4, #14b8a6);
    color: #ffffff;
    text-decoration: none;
    border-radius: 8px;
    font-size: 0.875rem;
    font-weight: 600;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    margin-top: 0.75rem;
    border: 1px solid rgba(6, 182, 212, 0.3);
    min-height: 44px;
    min-width: 120px;
    cursor: pointer;
}

.verify-btn:hover {
    background: linear-gradient(135deg, #14b8a6, #06b6d4);
    transform: translateY(-2px);
    box-shadow: 0 8px 20px rgba(6, 182, 212, 0.3);
    border-color: rgba(6, 182, 212, 0.6);
}

.verify-btn:active {
    transform: translateY(0);
    box-shadow: 0 4px 12px rgba(6, 182, 212, 0.2);
}

.verify-btn i {
    font-size: 1rem;
}

/* DataCamp Variation */
.certificate-card.datacamp {
    background: linear-gradient(135deg, rgba(16, 185, 129, 0.05) 0%, rgba(20, 184, 166, 0.02) 100%);
    border-color: rgba(16, 185, 129, 0.2);
}

.certificate-card.datacamp:hover {
    border-color: rgba(16, 185, 129, 0.5);
    box-shadow: 0 12px 32px rgba(16, 185, 129, 0.15);
}

.certificate-card.datacamp .certificate-logo {
    background: linear-gradient(135deg, #10b981, #14b8a6);
}

.certificate-card.datacamp .certificate-provider {
    color: #10b981;
}

.certificate-card.datacamp .certificate-grade {
    background: rgba(16, 185, 129, 0.15);
    border-color: rgba(16, 185, 129, 0.3);
    color: #10b981;
}

/* ===================================
   ACHIEVEMENTS BADGES
   =================================== */

.achievements-wrapper {
    margin-bottom: 3rem;
}

.achievements-header {
    text-align: center;
    margin-bottom: 2.5rem;
}

.achievements-title {
    font-size: clamp(1.5rem, 4vw, 2rem);
    font-weight: 700;
    color: #ffffff;
    margin-bottom: 0.5rem;
}

.achievements-subtitle {
    font-size: 0.95rem;
    color: rgba(255, 255, 255, 0.65);
    margin-top: 0.5rem;
}

.achievements-badges {
    display: flex;
    flex-wrap: wrap;
    gap: 1rem;
    justify-content: center;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 1rem;
}

/* Badge Card */
.achievement-badge {
    background: linear-gradient(135deg, rgba(6, 182, 212, 0.08) 0%, rgba(20, 184, 166, 0.04) 100%);
    border: 1px solid rgba(6, 182, 212, 0.25);
    border-radius: 12px;
    padding: 1.25rem 1.5rem;
    display: flex;
    align-items: center;
    gap: 1rem;
    transition: all 0.3s ease;
    opacity: 0;
    transform: scale(0.9);
    flex: 1 1 auto;
    min-width: 280px;
    max-width: 100%;
}

.achievement-badge.animate-in {
    opacity: 1;
    transform: scale(1);
}

.achievement-badge:hover {
    transform: translateY(-4px) scale(1.02);
    border-color: rgba(6, 182, 212, 0.5);
    box-shadow: 0 8px 24px rgba(6, 182, 212, 0.2);
}

.achievement-icon {
    width: 40px;
    height: 40px;
    background: linear-gradient(135deg, #06b6d4, #14b8a6);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #0a0f1e;
    font-size: 1rem;
    flex-shrink: 0;
    box-shadow: 0 4px 12px rgba(6, 182, 212, 0.3);
}

.achievement-text {
    font-size: 0.9375rem;
    font-weight: 600;
    color: #ffffff;
    line-height: 1.4;
    word-wrap: break-word;
    white-space: normal;
}

/* ===================================
   RESPONSIVE DESIGN
   =================================== */

/* Mobile (320px - 480px) */
@media (max-width: 480px) {
    .education-achievements-section {
        padding: 3rem 0;
    }

    .section-header-edu {
        margin-bottom: 3rem;
    }

    .timeline-item {
        padding-left: 4rem;
        margin-bottom: 2rem;
    }

    .timeline-icon {
        width: 40px;
        height: 40px;
        font-size: 1rem;
    }

    .timeline-content {
        padding: 1.25rem;
    }

    .certificates-grid {
        grid-template-columns: 1fr;
        gap: 1rem;
    }

    .certificate-card {
        padding: 1.25rem;
    }

    .verify-btn {
        width: 100%;
        min-height: 48px;
        font-size: 0.9375rem;
        padding: 0.75rem 1rem;
    }

    .achievements-badges {
        flex-direction: column;
        gap: 0.75rem;
    }

    .achievement-badge {
        width: 100%;
        min-width: unset;
        padding: 1rem 1.25rem;

    .achievements-badges {
        flex-direction: column;
        align-items: stretch;
    }

    .achievement-badge {
        width: 100%;
        min-width: unset;
        max-width: 600px;
        margin: 0 auto;
    }
        flex-direction: row;
    }

    .achievement-icon {
        width: 36px;
        height: 36px;
        font-size: 0.9rem;
    }

    .achievement-text {
        font-size: 0.875rem;
    }
}

/* Tablet (481px - 768px) */
@media (min-width: 481px) and (max-width: 768px) {
    .certificates-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

/* Desktop (769px - 1024px) */
@media (min-width: 769px) and (max-width: 1024px) {
    .certificates-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

/* Large Desktop (1025px+) */
@media (min-width: 1025px) {
    .certificates-grid {
        grid-template-columns: repeat(4, 1fr);
    }
}

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

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes scaleIn {
    from {
        opacity: 0;
        transform: scale(0.9);
    }
    to {
        opacity: 1;
        transform: scale(1);
    }
}

/* Stagger animation delays */
.timeline-item:nth-child(1) { transition-delay: 0.1s; }
.timeline-item:nth-child(2) { transition-delay: 0.2s; }
.timeline-item:nth-child(3) { transition-delay: 0.3s; }

.certificate-card:nth-child(1) { transition-delay: 0.05s; }
.certificate-card:nth-child(2) { transition-delay: 0.1s; }
.certificate-card:nth-child(3) { transition-delay: 0.15s; }
.certificate-card:nth-child(4) { transition-delay: 0.2s; }
.certificate-card:nth-child(5) { transition-delay: 0.25s; }
.certificate-card:nth-child(6) { transition-delay: 0.3s; }
.certificate-card:nth-child(7) { transition-delay: 0.35s; }
.certificate-card:nth-child(8) { transition-delay: 0.4s; }

.achievement-badge:nth-child(1) { transition-delay: 0.1s; }
.achievement-badge:nth-child(2) { transition-delay: 0.2s; }
.achievement-badge:nth-child(3) { transition-delay: 0.3s; }
.achievement-badge:nth-child(4) { transition-delay: 0.4s; }
.achievement-badge:nth-child(5) { transition-delay: 0.5s; }