/* =====================================================
   ANIMATIONS
   ===================================================== */
@keyframes fadeIn   { from{opacity:0}       to{opacity:1} }
@keyframes slideUp  { from{transform:translateY(20px);opacity:0} to{transform:translateY(0);opacity:1} }
@keyframes float    { 0%,100%{transform:translateY(0)} 50%{transform:translateY(-10px)} }
@keyframes fadeInUp { from{opacity:0;transform:translateY(30px)} to{opacity:1;transform:translateY(0)} }
@keyframes slideInLeft { from{opacity:0;transform:translateX(-30px)} to{opacity:1;transform:translateX(0)} }
@keyframes fadeInScale { from{opacity:0;transform:scale(.9)} to{opacity:1;transform:scale(1)} }
@keyframes pulse {
    0%   { box-shadow:0 0 0 0 rgba(37,99,235,.7); }
    70%  { box-shadow:0 0 0 10px rgba(37,99,235,0); }
    100% { box-shadow:0 0 0 0 rgba(37,99,235,0); }
}
@keyframes dotFloat {
    0%,100%{ transform:translateY(0) scale(1); opacity:.5; }
    50%    { transform:translateY(-24px) scale(1.1); opacity:1; }
}
@keyframes badgeFloat { 0%,100%{ transform:translateY(0); } 50%{ transform:translateY(-7px); } }

.animate-fade-in  { animation:fadeIn .8s ease-out; }
.animate-slide-up { animation:slideUp .6s ease-out; }
.animate-float    { animation:float 3s ease-in-out infinite; }
.resume-pulse     { animation:pulse 2s infinite; }

/* =====================================================
   PROJECT CARDS
   ===================================================== */
.project-card {
    position:relative; overflow:hidden;
    transition:all .4s cubic-bezier(.175,.885,.32,1.275);
    animation:fadeInUp .6s ease-out forwards; opacity:0;
}
.project-card:nth-child(1){animation-delay:.1s}
.project-card:nth-child(2){animation-delay:.2s}
.project-card:nth-child(3){animation-delay:.3s}
.project-card:nth-child(4){animation-delay:.4s}
.project-card:nth-child(5){animation-delay:.5s}
.project-card:nth-child(6){animation-delay:.6s}
.project-card:nth-child(7){animation-delay:.7s}
.project-card:nth-child(8){animation-delay:.8s}
.project-card:hover { transform:translateY(-12px) scale(1.02); box-shadow:0 20px 40px -15px rgba(37,99,235,.35); }
.project-image-container { position:relative; overflow:hidden; height:220px; }
.project-image { width:100%; height:100%; object-fit:cover; transition:transform .6s cubic-bezier(.215,.61,.355,1); }
.project-card:hover .project-image { transform:scale(1.12) rotate(1.5deg); }
.project-overlay {
    position:absolute; inset:0;
    background:linear-gradient(135deg,rgba(37,99,235,.9),rgba(16,185,129,.9));
    display:flex; align-items:center; justify-content:center;
    opacity:0; transition:opacity .4s; backdrop-filter:blur(4px);
}
.project-card:hover .project-overlay { opacity:1; }
.project-links { display:flex; gap:20px; transform:translateY(20px); transition:transform .4s .1s; }
.project-card:hover .project-links { transform:translateY(0); }
.project-link-btn {
    width:50px; height:50px; background:#fff; border-radius:50%;
    display:flex; align-items:center; justify-content:center;
    color:#2563eb; font-size:1.4rem; text-decoration:none;
    transition:all .3s; animation:float 3s ease-in-out infinite;
}
.project-link-btn:hover { background:#2563eb; color:#fff; transform:scale(1.1) rotate(360deg); }
.project-link-btn.github-btn { animation-delay:.2s; }
.project-link-btn.demo-btn   { animation-delay:.4s; }
.project-content { padding:1.5rem; background:#fff; }
.dark .project-content { background:#1e293b; }
.project-tech-tag {
    display:inline-block; padding:.3rem .8rem;
    background:linear-gradient(135deg,#e6f0ff,#d1e0ff);
    color:#2563eb; border-radius:20px; font-size:.8rem; font-weight:500;
    margin:.25rem; transition:all .3s; border:1px solid transparent;
}
.project-tech-tag:hover { transform:translateY(-2px) scale(1.05); background:#2563eb; color:#fff; box-shadow:0 5px 15px rgba(37,99,235,.4); }
.dark .project-tech-tag { background:linear-gradient(135deg,#1e3a8a,#1e40af); color:#e0f2fe; }
.project-title {
    font-size:1.3rem; font-weight:700; margin-bottom:.8rem;
    background:linear-gradient(135deg,#1e293b,#2563eb);
    -webkit-background-clip:text; -webkit-text-fill-color:transparent; background-clip:text;
}
.dark .project-title { background:linear-gradient(135deg,#fff,#93c5fd); -webkit-background-clip:text; background-clip:text; }
.project-description { color:#4b5563; line-height:1.6; margin-bottom:1rem; font-size:.95rem; }
.dark .project-description { color:#d1d5db; }

/* =====================================================
   EDUCATION CARDS
   ===================================================== */
.education-card {
    position:relative; padding:2rem; background:#fff; border-radius:1rem;
    box-shadow:0 10px 30px -15px rgba(0,0,0,.2);
    transition:all .3s; border-left:4px solid #2563eb; margin-bottom:2rem;
    animation:slideInLeft .6s ease-out forwards; opacity:0;
}
.dark .education-card { background:#1e293b; box-shadow:0 10px 30px -15px rgba(0,0,0,.5); }
.education-card:nth-child(1){animation-delay:.1s}
.education-card:nth-child(2){animation-delay:.2s}
.education-card:nth-child(3){animation-delay:.3s}
.education-card:nth-child(4){animation-delay:.4s}
.education-card:hover { transform:translateX(8px); box-shadow:0 20px 40px -15px rgba(37,99,235,.35); }
.education-year { display:inline-block; padding:.3rem 1rem; background:#2563eb; color:#fff; border-radius:20px; font-size:.9rem; font-weight:600; margin-bottom:1rem; }
.education-institution { color:#4b5563; font-size:1.05rem; margin-bottom:.5rem; display:flex; align-items:center; gap:.5rem; }
.dark .education-institution { color:#b0b0b0; }
.education-degree { font-size:1.25rem; font-weight:700; color:#1e293b; margin-bottom:.8rem; }
.dark .education-degree { color:#fff; }
.education-description { color:#6b7280; line-height:1.6; }
.dark .education-description { color:#9ca3af; }

/* =====================================================
   CERTIFICATE CARDS
   ===================================================== */
.cert-card {
    display:flex; background:#fff; border-radius:14px; overflow:hidden;
    box-shadow:0 2px 16px rgba(0,0,0,.07); border:1px solid rgba(0,0,0,.06);
    transition:all .3s; animation:fadeInScale .6s ease-out forwards; opacity:0;
}
.dark .cert-card { background:#1e293b; border-color:rgba(255,255,255,.06); box-shadow:0 2px 16px rgba(0,0,0,.35); }
.cert-card:nth-child(1){animation-delay:.1s}
.cert-card:nth-child(2){animation-delay:.2s}
.cert-card:nth-child(3){animation-delay:.3s}
.cert-card:nth-child(4){animation-delay:.4s}
.cert-card:nth-child(5){animation-delay:.5s}
.cert-card:hover { transform:translateY(-4px); box-shadow:0 12px 32px rgba(37,99,235,.18); border-color:rgba(37,99,235,.2); }
.cert-card-accent {
    min-width:78px; width:78px;
    display:flex; flex-direction:column; align-items:center; justify-content:center;
    gap:.4rem; flex-shrink:0; padding:1rem 0;
}
.cert-card-icon { font-size:1.75rem; color:rgba(255,255,255,.85); }
.cert-card-body { padding:1.1rem 1.35rem; flex:1; display:flex; flex-direction:column; min-width:0; }
.cert-card-title { font-size:.97rem; font-weight:700; color:#1e293b; margin-bottom:.4rem; line-height:1.4; }
.dark .cert-card-title { color:#f1f5f9; }
.cert-card-meta { display:flex; align-items:center; flex-wrap:wrap; gap:.35rem .5rem; margin-bottom:.4rem; font-size:.82rem; }
.cert-issuer { color:#2563eb; font-weight:600; display:flex; align-items:center; gap:.3rem; }
.cert-separator { color:#cbd5e1; }
.cert-year { color:#64748b; display:flex; align-items:center; gap:.3rem; }
.dark .cert-year { color:#94a3b8; }
.cert-credential { font-size:.76rem; color:#94a3b8; display:flex; align-items:center; gap:.3rem; margin-bottom:.75rem; overflow:hidden; text-overflow:ellipsis; white-space:nowrap; }
.cert-verify-btn {
    display:inline-flex; align-items:center; gap:.4rem; font-size:.82rem; font-weight:600;
    color:#2563eb; text-decoration:none; padding:.35rem .85rem;
    background:rgba(37,99,235,.08); border-radius:6px; border:1px solid rgba(37,99,235,.18);
    transition:all .25s; width:fit-content; margin-top:auto;
}
.cert-verify-btn:hover { background:#2563eb; color:#fff; border-color:#2563eb; transform:translateX(3px); }

/* =====================================================
   CERTIFICATE FILTER TABS
   ===================================================== */
.cert-filter-tabs {
    display:flex; flex-wrap:wrap; gap:8px;
    justify-content:center; margin-bottom:2rem;
}
.cert-tab-btn {
    padding:.42rem 1.1rem; border-radius:100px;
    border:2px solid #e2e8f0; background:transparent;
    font-size:.8rem; font-weight:600; color:#475569;
    cursor:pointer; transition:all .2s; font-family:inherit;
}
.dark .cert-tab-btn { border-color:#334155; color:#94a3b8; }
.cert-tab-btn.active, .cert-tab-btn:hover {
    background:linear-gradient(135deg,#2563eb,#7c3aed);
    color:#fff; border-color:transparent;
}

@keyframes slideUp {
    from {
        transform: translateY(20px);
        opacity: 0;
    }
    to {
        transform: translateY(0);
        opacity: 1;
    }
}

@keyframes float {
    0%, 100% { transform: translateY(0px); }
    50% { transform: translateY(-10px); }
}

@keyframes glow {
    0%, 100% { box-shadow: 0 0 5px rgba(37, 99, 235, 0.3); }
    50% { box-shadow: 0 0 20px rgba(37, 99, 235, 0.6); }
}

@keyframes tilt {
    0%, 100% { transform: rotate(0deg); }
    25% { transform: rotate(1deg); }
    75% { transform: rotate(-1deg); }
}

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

@keyframes slideInLeft {
    from {
        opacity: 0;
        transform: translateX(-30px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

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

/* Animation Classes */
.animate-fade-in {
    animation: fadeIn 0.8s ease-out;
}

.animate-slide-up {
    animation: slideUp 0.6s ease-out;
}

.animate-float {
    animation: float 3s ease-in-out infinite;
}

.animate-glow {
    animation: glow 2s ease-in-out infinite;
}

.animate-tilt {
    animation: tilt 10s infinite linear;
}

/* Project Card Styles */
.project-card {
    position: relative;
    overflow: hidden;
    transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    animation: fadeInUp 0.6s ease-out forwards;
    opacity: 0;
}

.project-card:nth-child(1) { animation-delay: 0.1s; }
.project-card:nth-child(2) { animation-delay: 0.2s; }
.project-card:nth-child(3) { animation-delay: 0.3s; }
.project-card:nth-child(4) { animation-delay: 0.4s; }
.project-card:nth-child(5) { animation-delay: 0.5s; }
.project-card:nth-child(6) { animation-delay: 0.6s; }

.project-card:hover {
    transform: translateY(-15px) scale(1.02);
    box-shadow: 0 20px 40px -15px rgba(37, 99, 235, 0.4);
}

.project-image-container {
    position: relative;
    overflow: hidden;
    height: 220px;
}

.project-image {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.6s cubic-bezier(0.215, 0.61, 0.355, 1);
}

.project-card:hover .project-image {
    transform: scale(1.15) rotate(2deg);
}

.project-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, rgba(37, 99, 235, 0.9), rgba(16, 185, 129, 0.9));
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: opacity 0.4s ease;
    backdrop-filter: blur(5px);
}

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

.project-links {
    display: flex;
    gap: 20px;
    transform: translateY(20px);
    transition: transform 0.4s ease 0.1s;
}

.project-card:hover .project-links {
    transform: translateY(0);
}

.project-link-btn {
    width: 50px;
    height: 50px;
    background: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #2563eb;
    font-size: 1.5rem;
    transition: all 0.3s ease;
    animation: float 3s ease-in-out infinite;
    position: relative;
    overflow: hidden;
}

.project-link-btn:hover {
    background: #2563eb;
    color: white;
    transform: scale(1.1) rotate(360deg);
}

.project-link-btn.github-btn {
    animation-delay: 0.2s;
}

.project-link-btn.demo-btn {
    animation-delay: 0.4s;
}

.project-link-btn::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.3);
    transform: translate(-50%, -50%);
    transition: width 0.6s, height 0.6s;
}

.project-link-btn:hover::before {
    width: 100px;
    height: 100px;
}

.project-content {
    padding: 1.5rem;
    background: white;
    transition: background-color 0.3s ease;
}

.dark .project-content {
    background: #2d2d2d;
}

.project-tech-tag {
    display: inline-block;
    padding: 0.3rem 0.8rem;
    background: linear-gradient(135deg, #e6f0ff, #d1e0ff);
    color: #2563eb;
    border-radius: 20px;
    font-size: 0.8rem;
    font-weight: 500;
    margin: 0.25rem;
    transition: all 0.3s ease;
    border: 1px solid transparent;
}

.project-tech-tag:hover {
    transform: translateY(-2px) scale(1.05);
    background: #2563eb;
    color: white;
    border-color: white;
    box-shadow: 0 5px 15px rgba(37, 99, 235, 0.4);
}

.dark .project-tech-tag {
    background: linear-gradient(135deg, #1e3a8a, #1e40af);
    color: #e0f2fe;
}

.dark .project-tech-tag:hover {
    background: #3b82f6;
    color: white;
}

.project-title {
    font-size: 1.4rem;
    font-weight: 700;
    margin-bottom: 0.8rem;
    background: linear-gradient(135deg, #1e293b, #2563eb);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.dark .project-title {
    background: linear-gradient(135deg, #fff, #93c5fd);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.project-description {
    color: #4b5563;
    line-height: 1.6;
    margin-bottom: 1rem;
    font-size: 0.95rem;
}

.dark .project-description {
    color: #d1d5db;
}

.stats-badge {
    position: absolute;
    top: 1rem;
    right: 1rem;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(5px);
    padding: 0.5rem 1rem;
    border-radius: 30px;
    font-size: 0.85rem;
    font-weight: 600;
    color: #2563eb;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.2);
    z-index: 10;
    transform: translateX(100px);
    transition: transform 0.4s ease 0.2s;
    border: 1px solid rgba(37, 99, 235, 0.3);
}

.project-card:hover .stats-badge {
    transform: translateX(0);
}

.filter-btn {
    padding: 0.6rem 1.5rem;
    border-radius: 30px;
    font-weight: 500;
    transition: all 0.3s ease;
    border: 2px solid transparent;
    cursor: pointer;
}

.filter-btn.active {
    background: #2563eb;
    color: white;
    transform: scale(1.05);
    box-shadow: 0 10px 25px -5px rgba(37, 99, 235, 0.5);
}

.filter-btn:hover:not(.active) {
    border-color: #2563eb;
    color: #2563eb;
    transform: translateY(-2px);
}

.dark .filter-btn:hover:not(.active) {
    color: white;
    border-color: white;
}

/* Education Card Styles */
.education-card {
    position: relative;
    padding: 2rem;
    background: white;
    border-radius: 1rem;
    box-shadow: 0 10px 30px -15px rgba(0, 0, 0, 0.2);
    transition: all 0.3s ease;
    border-left: 4px solid #2563eb;
    margin-bottom: 2rem;
    animation: slideInLeft 0.6s ease-out forwards;
    opacity: 0;
}

.dark .education-card {
    background: #2d2d2d;
    box-shadow: 0 10px 30px -15px rgba(0, 0, 0, 0.5);
}

.education-card:nth-child(1) { animation-delay: 0.1s; }
.education-card:nth-child(2) { animation-delay: 0.2s; }
.education-card:nth-child(3) { animation-delay: 0.3s; }

.education-card:hover {
    transform: translateX(10px);
    box-shadow: 0 20px 40px -15px rgba(37, 99, 235, 0.4);
}

.education-year {
    display: inline-block;
    padding: 0.3rem 1rem;
    background: #2563eb;
    color: white;
    border-radius: 20px;
    font-size: 0.9rem;
    font-weight: 600;
    margin-bottom: 1rem;
}

.education-institution {
    color: #4b5563;
    font-size: 1.1rem;
    margin-bottom: 0.5rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.dark .education-institution {
    color: #b0b0b0;
}

.education-degree {
    font-size: 1.3rem;
    font-weight: 700;
    color: #1e293b;
    margin-bottom: 0.8rem;
}

.dark .education-degree {
    color: white;
}

.education-description {
    color: #6b7280;
    line-height: 1.6;
}

.dark .education-description {
    color: #9ca3af;
}

/* Certificate Card Styles */
.certificate-card {
    background: white;
    border-radius: 1rem;
    overflow: hidden;
    box-shadow: 0 10px 30px -15px rgba(0, 0, 0, 0.2);
    transition: all 0.4s ease;
    animation: fadeInScale 0.6s ease-out forwards;
    opacity: 0;
    transform: scale(0.9);
    height: 100%;
    display: flex;
    flex-direction: column;
}

.dark .certificate-card {
    background: #2d2d2d;
    box-shadow: 0 10px 30px -15px rgba(0, 0, 0, 0.5);
}

.certificate-card:nth-child(1) { animation-delay: 0.1s; }
.certificate-card:nth-child(2) { animation-delay: 0.2s; }
.certificate-card:nth-child(3) { animation-delay: 0.3s; }
.certificate-card:nth-child(4) { animation-delay: 0.4s; }
.certificate-card:nth-child(5) { animation-delay: 0.5s; }
.certificate-card:nth-child(6) { animation-delay: 0.6s; }

.certificate-card:hover {
    transform: translateY(-10px) scale(1.02);
    box-shadow: 0 30px 50px -20px rgba(37, 99, 235, 0.5);
}

.certificate-image {
    height: 160px;
    overflow: hidden;
    position: relative;
    background: linear-gradient(135deg, #667eea, #764ba2);
    display: flex;
    align-items: center;
    justify-content: center;
}

.certificate-icon {
    font-size: 4rem;
    color: rgba(255, 255, 255, 0.3);
    transition: all 0.3s ease;
}

.certificate-card:hover .certificate-icon {
    transform: scale(1.1) rotate(5deg);
    color: rgba(255, 255, 255, 0.5);
}

.certificate-content {
    padding: 1.5rem;
    flex-grow: 1;
    display: flex;
    flex-direction: column;
}

.certificate-title {
    font-size: 1.2rem;
    font-weight: 700;
    color: #1e293b;
    margin-bottom: 0.5rem;
    line-height: 1.4;
}

.dark .certificate-title {
    color: white;
}

.certificate-issuer {
    color: #2563eb;
    font-weight: 600;
    font-size: 0.95rem;
    margin-bottom: 0.5rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.certificate-date {
    color: #6b7280;
    font-size: 0.9rem;
    margin-bottom: 1rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.dark .certificate-date {
    color: #9ca3af;
}

.certificate-link {
    margin-top: auto;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    color: #2563eb;
    font-weight: 600;
    text-decoration: none;
    transition: all 0.3s ease;
    padding: 0.5rem 0;
}

.certificate-link:hover {
    gap: 1rem;
    color: #1e40af;
}

.dark .certificate-link:hover {
    color: #93c5fd;
}

/* ============================================================
   MOBILE RESPONSIVE — CARDS & LAYOUT
   ============================================================ */
@media (max-width: 768px) {
    /* Project cards single column */
    .project-card:hover {
        transform: translateY(-6px) scale(1.01);
    }

    .project-image-container {
        height: 180px;
    }

    /* Experience timeline */
    #experience-timeline {
        margin-left: 0;
        padding-left: 2.5rem;
    }

    #experience-timeline .absolute.-left-11 {
        left: -1.25rem;
    }

    /* Education cards */
    .education-card:hover {
        transform: translateX(4px);
    }

    /* Skills grid */
    .grid.grid-cols-1.md\:grid-cols-2.gap-8 > div:first-child {
        margin-bottom: 0;
    }

    /* Section headings */
    .text-3xl.md\:text-4xl {
        font-size: 1.75rem;
    }
}

@media (max-width: 480px) {
    .project-image-container {
        height: 160px;
    }

    .education-card {
        padding: 1.25rem;
    }

    .filter-btn {
        padding: 0.4rem 0.85rem;
        font-size: 0.8rem;
    }

    /* Tighten experience achievments list */
    #experience-timeline ul.list-disc {
        padding-left: 1rem;
    }
}