/* ══════════════════════════════════════
   PORTFOLIO DETAIL STYLES
   Optimized for premium visual consistency
══════════════════════════════════════ */

.port-hero {
    padding-top: 14rem;
    padding-bottom: 7rem;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.port-hero::before {
    content: ''; position: absolute; top: -50px; left: 50%; width: 400px; height: 400px;
    background: radial-gradient(circle, rgba(255, 61, 46, 0.1), transparent 70%);
    transform: translateX(-50%); pointer-events: none; z-index: 0;
}

.port-hero .container { position: relative; z-index: 1; }

.port-hero-img {
    max-width: 650px;
    margin: 4rem auto 0;
    filter: drop-shadow(0 20px 60px rgba(0,0,0,0.6));
    animation: floating 4.5s ease-in-out infinite;
}

@keyframes floating {
    0%, 100% { transform: translateY(0) rotate(0deg); }
    50% { transform: translateY(-25px) rotate(1deg); }
}

/* ═════ SECTION WRAPPER ═════ */
.port-content {
    background: var(--bg2);
    position: relative;
    z-index: 2;
    margin-top: -2rem;
    border-radius: 40px 40px 0 0;
    border-top: 1px solid var(--border);
}

/* ═════ FEATURE / SERVICE GRID ═════ */
.feat-grid, .serv-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
    margin-top: 3.5rem;
}

.feat-card, .serv-card {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 2.5rem;
    transition: all 0.4s cubic-bezier(0.16, 1, 0.3, 1);
    position: relative;
    overflow: hidden;
}

.feat-card:hover, .serv-card:hover {
    background: var(--surface2);
    border-color: var(--border2);
    transform: translateY(-8px);
    box-shadow: 0 15px 40px rgba(0,0,0,0.3);
}

.feat-card::after, .serv-card::after {
    content: ''; position: absolute; inset: 0; 
    background: radial-gradient(circle at top right, rgba(255,255,255,0.03), transparent 60%);
    pointer-events: none;
}

.feat-ico, .serv-ico {
    width: 60px; height: 60px;
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid var(--border);
    border-radius: 14px;
    display: flex; align-items: center; justify-content: center;
    font-size: 1.8rem; color: #fff;
    margin-bottom: 1.5rem;
    transition: 0.4s;
}

.feat-card:hover .feat-ico, .serv-card:hover .serv-ico {
    background: var(--red);
    color: #fff;
    transform: scale(1.1) rotate(5deg);
    box-shadow: 0 10px 20px rgba(255,61,46,0.3);
}

.feat-card h4, .serv-card h4 {
    font-size: 1.35rem; color: #fff; margin-bottom: 0.8rem;
}

.feat-card p, .serv-card p {
    font-size: 0.92rem; color: var(--text2); line-height: 1.6;
}

/* ═════ PROJECT GRID ═════ */
.proj-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(340px, 1fr));
    gap: 2.5rem;
    margin-top: 4rem;
}

.proj-card {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 20px;
    overflow: hidden;
    transition: 0.4s;
    text-decoration: none;
    display: flex;
    flex-direction: column;
}

.proj-card:hover {
    transform: translateY(-10px);
    border-color: var(--border2);
    box-shadow: 0 25px 50px rgba(0,0,0,0.4);
}

.proj-img {
    height: 240px;
    background: linear-gradient(135deg, var(--bg3), #202230);
    display: flex; align-items: center; justify-content: center;
    position: relative;
    overflow: hidden;
}

.proj-img img {
    width: 100%; height: 100%; object-fit: cover;
    transition: 0.8s cubic-bezier(0.16, 1, 0.3, 1);
}

.proj-card:hover .proj-img img { transform: scale(1.1); }

.proj-info { padding: 2.2rem; display: flex; flex-direction: column; flex-grow: 1; }

.proj-title { color: #fff; font-size: 1.4rem; margin-bottom: 0.8rem; font-weight: 800; }

.proj-desc { color: var(--text2); font-size: 0.92rem; line-height: 1.6; margin-bottom: 1.5rem; }

.proj-tags { display: flex; flex-wrap: wrap; gap: 0.5rem; margin-top: auto; }

.ptag {
    background: rgba(255, 255, 255, 0.05);
    color: var(--text2);
    padding: 0.4rem 0.8rem;
    border-radius: 6px;
    font-size: 0.75rem;
    font-weight: 600;
    border: 1px solid var(--border);
    transition: 0.3s;
}

.proj-card:hover .ptag { border-color: rgba(255,61,46,0.3); color: #fff; }

.proj-link {
    margin-top: 1.5rem; display: inline-flex; align-items: center; gap: 0.5rem;
    color: var(--red); font-weight: 700; font-size: 0.9rem;
}

/* ═════ TECH STACK ═════ */
.tech-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 1.5rem;
    margin-top: 3.5rem;
}

.tech-cat {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 2.5rem;
}

.tech-cat h5 { color: #fff; margin-bottom: 1.5rem; font-size: 1.1rem; border-left: 3px solid var(--red); padding-left: 0.8rem; }

.tech-list { display: flex; flex-wrap: wrap; gap: 0.5rem; }

.ttag {
    background: rgba(255, 255, 255, 0.03);
    color: var(--text2);
    padding: 0.5rem 0.9rem;
    border-radius: 50px;
    font-size: 0.8rem;
    font-weight: 600;
    border: 1px solid var(--border);
}

.ttag.primary { border-color: rgba(59, 158, 255, 0.2); color: var(--blue); background: rgba(59, 158, 255, 0.05); }

/* ═════ CATEGORY NAV ═════ */
.cat-nav {
    display: flex; flex-wrap: wrap; justify-content: center; gap: 0.8rem;
    margin-bottom: 3.5rem;
}

.cat-btn {
    background: var(--surface);
    border: 1px solid var(--border);
    color: var(--text2);
    padding: 0.8rem 1.6rem;
    border-radius: 50px;
    font-weight: 600;
    font-size: 0.88rem;
    cursor: pointer;
    transition: 0.3s;
}

.cat-btn:hover { color: #fff; border-color: var(--border2); }
.cat-btn.active { background: var(--red); color: #fff; border-color: var(--red); box-shadow: 0 8px 20px rgba(255,61,46,0.3); }

/* ═════ PROCESS TIMELINE ═════ */
.proc-grid {
    display: flex;
    justify-content: space-between;
    gap: 2rem;
    position: relative;
    margin-top: 5rem;
    margin-bottom: 2rem;
}

.proc-grid::before {
    content: '';
    position: absolute;
    top: 32px;
    left: 10%;
    right: 10%;
    height: 1px;
    background: linear-gradient(90deg, 
        rgba(255, 61, 46, 0.4) 0%, 
        rgba(255, 171, 0, 0.4) 33%, 
        rgba(0, 230, 118, 0.4) 66%, 
        rgba(41, 121, 255, 0.4) 100%
    );
    z-index: 0;
}

.proc-step {
    flex: 1;
    text-align: center;
    position: relative;
    z-index: 1;
}

.step-n {
    width: 64px;
    height: 64px;
    background: var(--bg2);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 2.2rem;
    font-size: 1.15rem;
    font-weight: 900;
    position: relative;
    transition: all 0.5s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    border: 2px solid transparent;
}

/* Specific Colors for Steps */
.proc-step:nth-child(1) .step-n { border-color: rgba(255, 61, 46, 0.6); color: #ff3d2e; box-shadow: 0 0 25px rgba(255, 61, 46, 0.15); }
.proc-step:nth-child(2) .step-n { border-color: rgba(255, 171, 0, 0.6); color: #ffab00; box-shadow: 0 0 25px rgba(255, 171, 0, 0.15); }
.proc-step:nth-child(3) .step-n { border-color: rgba(0, 230, 118, 0.6); color: #00e676; box-shadow: 0 0 25px rgba(0, 230, 118, 0.15); }
.proc-step:nth-child(4) .step-n { border-color: rgba(41, 121, 255, 0.6); color: #2979ff; box-shadow: 0 0 25px rgba(41, 121, 255, 0.15); }

.proc-step:hover .step-n {
    transform: scale(1.15) translateY(-5px);
}

.proc-step:nth-child(1):hover .step-n { box-shadow: 0 0 40px rgba(255, 61, 46, 0.4); background: rgba(255, 61, 46, 0.08); }
.proc-step:nth-child(2):hover .step-n { box-shadow: 0 0 40px rgba(255, 171, 0, 0.4); background: rgba(255, 171, 0, 0.08); }
.proc-step:nth-child(3):hover .step-n { box-shadow: 0 0 40px rgba(0, 230, 118, 0.4); background: rgba(0, 230, 118, 0.08); }
.proc-step:nth-child(4):hover .step-n { box-shadow: 0 0 40px rgba(41, 121, 255, 0.4); background: rgba(41, 121, 255, 0.08); }

.proc-step h4 {
    font-size: 1.25rem;
    color: #fff;
    font-weight: 800;
    margin-bottom: 0.8rem;
    letter-spacing: -0.02em;
}

.proc-step p {
    font-size: 0.92rem;
    color: var(--text2);
    line-height: 1.7;
    max-width: 250px;
    margin: 0 auto;
}

/* ═════ TOOL GRID ═════ */
.tool-grid {
    display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1.2rem; margin-top: 3rem;
}

.tool-card {
    background: var(--surface); border: 1px solid var(--border); border-radius: 16px;
    padding: 1.8rem; text-align: center; transition: 0.3s;
}

.tool-card:hover { transform: translateY(-5px); border-color: var(--blue); }

.tool-ico { font-size: 2rem; color: var(--blue); margin-bottom: 1.2rem; }

/* ═════ LAYOUT UTILS ═════ */
.text-center { text-align: center; }
.mb-5 { margin-bottom: 3.5rem !important; }
.gap-3 { gap: 1rem; }
.flex-wrap { flex-wrap: wrap; }
.justify-content-center { justify-content: center; }
.d-flex { display: flex; }

@media (max-width: 768px) {
    .port-hero { padding-top: 10rem; }
    .feat-grid, .proj-grid, .tech-grid { grid-template-columns: 1fr; }
    .cat-nav { justify-content: flex-start; overflow-x: auto; padding-bottom: 1rem; flex-wrap: nowrap; }
    .cat-btn { white-space: nowrap; }
}