/* GLOBAL */
    * {
        box-sizing: border-box;
        margin: 0;
        padding: 0;
    }
    html {
        scroll-behavior: smooth;
    }
    body {
        font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
        background: #020617;
        color: white;
        overflow-x: hidden;
    }
    /* CUSTOM SCROLLBAR */
    ::-webkit-scrollbar {
        width: 8px;
    }
    ::-webkit-scrollbar-track {
        background: #0f172a;
    }
    ::-webkit-scrollbar-thumb {
        background: #1e293b;
        border-radius: 10px;
    }
    ::-webkit-scrollbar-thumb:hover {
        background: #38bdf8;
    }
    /* LOADER */
    #loader {
        position: fixed;
        width: 100%;
        height: 100vh;
        background: #020617;
        display: flex;
        justify-content: center;
        align-items: center;
        font-size: 32px;
        color: #38bdf8;
        z-index: 9999;
        animation: fadeOut 1s ease 2.5s forwards;
    }
    @keyframes fadeOut {
        to {
            opacity: 0;
            visibility: hidden;
        }
    }
    /* BACKGROUND ANIMATION */
    body::before {
        content: "";
        position: fixed;
        width: 200%;
        height: 200%;
        background: radial-gradient(circle, #38bdf822 1px, transparent 1px);
        background-size: 40px 40px;
        animation: bgMove 40s linear infinite;
        z-index: -1;
    }
    @keyframes bgMove {
        0% {
            transform: translate(0, 0);
        }
        100% {
            transform: translate(-300px, -300px);
        }
    }
    /* MOUSE GLOW */
    .cursor {
        position: fixed;
        width: 75px;
        height: 75px;
        background: radial-gradient(circle, #38bdf844 0%, transparent 70%);
        pointer-events: none;
        transform: translate(-50%, -50%);
        z-index: 0;
        border-radius: 50%;
    }
    /* HEADER */
    header {
        display: flex;
        justify-content: space-between;
        align-items: center;
        padding: 20px 10%;
        background: rgba(2, 6, 23, 0.9);
        backdrop-filter: blur(10px);
        position: sticky;
        top: 0;
        z-index: 100;
        border-bottom: 1px solid #1e293b;
    }
    .logo {
        font-size: 24px;
        font-weight: bold;
        color: #38bdf8;
        text-shadow: 0 0 10px #38bdf855;
    }
    nav a {
        color: white;
        margin-left: 25px;
        text-decoration: none;
        transition: .3s;
        font-weight: 500;
    }
    nav a:hover {
        color: #38bdf8;
    }
    /* HERO SECTION */
    .hero {
        text-align: center;
        padding: 140px 20px;
    }
    .hero h1 {
        font-size: 60px;
        margin-bottom: 10px;
    }
    .hero span {
        color: #38bdf8;
    }
    .hero p {
        color: #94a3b8;
        font-size: 1.2rem;
    }

#languages {
    padding-top: 26px;
}

.languages-subtitle {
    max-width: 760px;
    color: #93c5fd;
    margin-bottom: 24px;
    font-size: 1.02rem;
}

.languages-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 20px;
}

.language-card {
    border-color: rgba(56, 189, 248, 0.26);
    background:
        linear-gradient(155deg, rgba(14, 116, 144, 0.18), rgba(15, 23, 42, 0.94) 52%),
        #0f172a;
}

.language-card .card-content {
    min-height: 210px;
}

.language-card h3 {
    font-size: 1.25rem;
    margin-bottom: 8px;
}

.language-card p {
    margin-bottom: 14px;
}
    .btn {
        display: inline-block;
        margin-top: 25px;
        padding: 14px 35px;
        background: #38bdf8;
        color: black;
        border-radius: 10px;
        text-decoration: none;
        font-weight: bold;
        box-shadow: 0 0 20px #38bdf866;
        transition: .3s;
        border: none;
        cursor: pointer;
    }
    .btn:hover {
        transform: scale(1.05);
        box-shadow: 0 0 35px #38bdf8aa;
    }
    /* SECTIONS */
    section {
        padding: 80px 10%;
    }
    h2 {
        font-size: 2.5rem;
        margin-bottom: 30px;
        position: relative;
        display: inline-block;
    }
    h2::after {
        content: '';
        position: absolute;
        bottom: -5px;
        left: 0;
        width: 60%;
        height: 3px;
        background: #38bdf8;
    }
    /* PROJECTS GRID */
    .projects {
        display: grid;
        grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
        gap: 30px;
        margin-top: 40px;
    }
    /* CARDS */
    .card {
        background: #0f172a;
        border-radius: 16px;
        overflow: hidden;
        border: 1px solid #1e293b;
        transition: .4s;
        display: flex;
        flex-direction: column;
    }
    .card:hover {
        transform: translateY(-10px);
        border-color: #38bdf8;
        box-shadow: 0 15px 30px rgba(0, 0, 0, 0.5), 0 0 20px rgba(56, 189, 248, 0.2);
    }
    
    /* NEW BOOK STYLE FOR LIBRARIES */
    .book-card {
        background: #0f172a;
        border-radius: 6px 16px 16px 6px;
        overflow: hidden;
        border: 1px solid #1e293b;
        border-left: 15px solid #0284c7;
        box-shadow: 5px 5px 15px rgba(0,0,0,0.5); 
        transition: .4s;
        display: flex;
        flex-direction: column;
        position: relative;
    }
    .book-card:hover {
        transform: translateY(-10px) rotateY(-5deg);
        border-color: #38bdf8;
        box-shadow: 10px 15px 30px rgba(0, 0, 0, 0.5), 0 0 20px rgba(56, 189, 248, 0.2);
    }

    .card-image-placeholder {
        width: 100%;
        height: 180px;
        background: #020617;
        background-image:
            linear-gradient(rgba(56, 189, 248, 0.05) 1px, transparent 1px),
            linear-gradient(90deg, rgba(56, 189, 248, 0.05) 1px, transparent 1px);
        background-size: 20px 20px;
        display: flex;
        justify-content: center;
        align-items: center;
        border-bottom: 1px solid #1e293b;
        position: relative;
        overflow: hidden;
        perspective: 1000px;
    }
    .card-image-placeholder::before {
        content: '';
        position: absolute;
        width: 100px;
        height: 100px;
        background: #38bdf8;
        border-radius: 50%;
        filter: blur(50px);
        opacity: 0.3;
    }
    .pro-logo-text {
        font-size: 3rem;
        font-weight: 900;
        color: #38bdf8;
        text-transform: uppercase;
        letter-spacing: -2px;
        position: relative;
        transform: rotateX(15deg) rotateY(-15deg) rotateZ(-3deg);
        text-shadow:
            0 1px 0 #0ea5e9,
            0 2px 0 #0284c7,
            0 3px 0 #0369a1,
            0 4px 0 #075985,
            0 5px 0 #0c4a6e,
            0 6px 1px rgba(0, 0, 0, .1),
            0 0 5px rgba(56, 189, 248, .1),
            0 1px 3px rgba(0, 0, 0, .3),
            0 3px 5px rgba(0, 0, 0, .2),
            0 5px 10px rgba(0, 0, 0, .25),
            0 10px 10px rgba(0, 0, 0, .2),
            0 20px 20px rgba(0, 0, 0, .15),
            0 0 15px #38bdf8;
        display: inline-block;
        transform-origin: center center;
    }
    .card-content {
        padding: 25px;
        flex: 1;
        display: flex;
        flex-direction: column;
        justify-content: space-between;
    }
    .card h3, .book-card h3 {
        color: #38bdf8;
        margin-bottom: 10px;
        font-size: 1.4rem;
    }
    .card p, .book-card p {
        color: #94a3b8;
        font-size: 0.95rem;
        margin-bottom: 20px;
        flex: 1;
    }
    .buttons {
        display: flex;
        gap: 12px;
        margin-top: auto;
    }
    .card button, .book-card button {
        flex: 1;
        padding: 12px;
        border: none;
        border-radius: 8px;
        cursor: pointer;
        font-weight: bold;
        transition: .3s;
    }
    .view {
        background: #1e293b;
        color: #38bdf8;
        border: 1px solid #38bdf844;
    }
    .view:hover {
        background: #38bdf8;
        color: black;
    }
    .test {
        background: #2563eb; 
        color: white;
    }
    .test:hover {
        box-shadow: 0 0 15px #2563eb;
        transform: scale(1.03);
    }
    .repo-btn {
        background: #2563eb;
        color: white;
    }
    .repo-btn:hover {
        box-shadow: 0 0 15px #2563eb;
        transform: scale(1.03);
    }
    .coming {
        background: #1e293b;
        color: #64748b;
        cursor: not-allowed;
        width: 100%;
    }
    /* MODAL STYLES */
    .modal-overlay {
        position: fixed;
        top: 0;
        left: 0;
        width: 100%;
        height: 100%;
        background: rgba(2, 6, 23, 0.9);
        backdrop-filter: blur(10px);
        z-index: 1000;
        display: none;
        justify-content: center;
        align-items: center;
        padding: 20px;
    }
    .modal-container {
        background: #0f172a;
        border: 1px solid #38bdf8;
        border-radius: 20px;
        width: 100%;
        max-width: 900px;
        max-height: 85vh;
        position: relative;
        display: flex;
        flex-direction: column;
        animation: modalScale 0.3s ease-out;
    }
    @keyframes modalScale {
        from { transform: scale(0.9); opacity: 0; }
        to { transform: scale(1); opacity: 1; }
    }
    .modal-header {
        padding: 25px 35px;
        border-bottom: 1px solid #1e293b;
        padding-right: 60px;
    }
    .modal-header h2 {
        font-size: 1.8rem;
        margin: 0;
        color: #38bdf8;
    }
    .modal-header h2::after { display: none; }
    .close-btn {
        position: absolute;
        top: 20px;
        right: 20px;
        background: #1e293b;
        color: #ef4444;
        border: none;
        width: 40px;
        height: 40px;
        border-radius: 50%;
        font-size: 24px;
        cursor: pointer;
        display: flex;
        justify-content: center;
        align-items: center;
        z-index: 1010;
        transition: 0.2s;
    }
    .close-btn:hover {
        background: #ef4444;
        color: white;
        transform: rotate(90deg);
    }
    .modal-content-scroll {
        padding: 35px;
        overflow-y: auto;
        flex: 1;
    }

.modal-media {
    width: 100%;
    aspect-ratio: 16 / 9;
    border-radius: 14px;
    overflow: hidden;
    position: relative;
    margin-bottom: 22px;
    border: 1px solid rgba(56, 189, 248, 0.26);
    background:
        radial-gradient(circle at 20% 20%, rgba(56, 189, 248, 0.14), transparent 45%),
        rgba(2, 6, 23, 0.78);
    box-shadow: 0 16px 34px rgba(2, 6, 23, 0.5), inset 0 0 0 1px rgba(148, 163, 184, 0.08);
}

.modal-media.is-loading::after {
    content: "";
    position: absolute;
    inset: 0;
    background:
        linear-gradient(
            110deg,
            rgba(30, 41, 59, 0.22) 10%,
            rgba(71, 85, 105, 0.34) 38%,
            rgba(30, 41, 59, 0.22) 66%
        );
    background-size: 220% 100%;
    animation: mediaShimmer 1.25s linear infinite;
    pointer-events: none;
    z-index: 4;
}

.modal-media.is-loading .modal-system-video {
    opacity: 0;
}

.modal-system-video {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
    transition: opacity 0.26s ease;
}

.modal-media-fallback {
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    background:
        linear-gradient(135deg, rgba(15, 23, 42, 0.85), rgba(30, 41, 59, 0.65)),
        radial-gradient(circle at 50% 50%, rgba(56, 189, 248, 0.22), transparent 58%);
}

.modal-media .pro-logo-text {
    font-size: clamp(2rem, 6vw, 3.4rem);
    text-shadow: 0 0 22px rgba(56, 189, 248, 0.75);
}

.modal-system-video.is-hidden,
.modal-media-fallback.is-hidden {
    display: none;
}

@keyframes mediaShimmer {
    0% { background-position: 120% 0; }
    100% { background-position: -120% 0; }
}
    .modal-body h3 {
        color: #f8fafc;
        margin: 25px 0 10px 0;
        font-size: 1.3rem;
        display: flex;
        align-items: center;
        gap: 10px;
    }
    .modal-body p {
        color: #94a3b8;
        margin-bottom: 15px;
        line-height: 1.6;
    }
    .modal-body ul {
        list-style: none;
        margin-bottom: 20px;
    }
    .modal-body li {
        padding-left: 25px;
        position: relative;
        margin-bottom: 8px;
        color: #cbd5e1;
    }
    .modal-body li::before {
        content: '→';
        position: absolute;
        left: 0;
        color: #38bdf8;
    }
    /* FEEDBACK SECTION */
    .feedback-container {
        display: flex;
        flex-wrap: wrap;
        gap: 40px;
        margin-top: 40px;
    }
    .feedback-form-box, .feedback-list-box {
        background: #0f172a;
        padding: 30px;
        border-radius: 16px;
        border: 1px solid #1e293b;
        flex: 1;
        min-width: 300px;
    }
    .feedback-form-box h3, .feedback-list-box h3 {
        color: #38bdf8;
        margin-bottom: 20px;
        font-size: 1.5rem;
    }
    .rating-summary {
        display: flex;
        align-items: center;
        gap: 15px;
        margin-bottom: 25px;
        padding-bottom: 20px;
        border-bottom: 1px solid #1e293b;
    }
    .rating-summary .score {
        font-size: 3rem;
        font-weight: bold;
        color: #f8fafc;
    }
    .rating-summary .stars-display {
        color: #fbbf24;
        font-size: 1.2rem;
        letter-spacing: 2px;
    }
    .rating-summary .total-reviews {
        color: #94a3b8;
        font-size: 0.9rem;
    }
    .form-group {
        margin-bottom: 20px;
    }
    .form-group input, .form-group textarea {
        width: 100%;
        padding: 12px 15px;
        background: #020617;
        border: 1px solid #1e293b;
        color: white;
        border-radius: 8px;
        font-family: inherit;
        outline: none;
        transition: 0.3s;
    }
    .form-group input:focus, .form-group textarea:focus {
        border-color: #38bdf8;
        box-shadow: 0 0 10px #38bdf833;
    }
    .form-group textarea {
        resize: vertical;
        min-height: 100px;
    }
    .star-rating-input {
        display: flex;
        flex-direction: row-reverse;
        justify-content: flex-end;
        gap: 5px;
        margin-bottom: 15px;
    }
    .star-rating-input input {
        display: none;
    }
    .star-rating-input label {
        font-size: 2rem;
        color: #1e293b;
        cursor: pointer;
        transition: 0.2s;
    }
    .star-rating-input label:hover,
    .star-rating-input label:hover ~ label,
    .star-rating-input input:checked ~ label {
        color: #fbbf24;
        text-shadow: 0 0 10px rgba(251, 191, 36, 0.5);
    }
    
    /* REVIEWS LIST SCROLL MODIFICATION */
    .reviews-list {
        display: flex;
        flex-direction: column;
        gap: 15px;
        max-height: 500px; /* التعديل هنا لتثبيت الطول */
        overflow-y: auto;  /* التعديل هنا لعمل السكرول */
        padding-right: 10px;
    }
    .reviews-list::-webkit-scrollbar {
        width: 6px;
    }
    .reviews-list::-webkit-scrollbar-track {
        background: #020617;
    }
    .reviews-list::-webkit-scrollbar-thumb {
        background: #38bdf8;
        border-radius: 10px;
    }

    .review-card {
        background: #020617;
        padding: 20px;
        border-radius: 10px;
        border: 1px solid #1e293b;
        display: flex;
        flex-direction: column;
        gap: 10px;
    }
    .review-header {
        display: flex;
        justify-content: space-between;
        align-items: center;
    }
    .reviewer-info {
        display: flex;
        align-items: center;
        gap: 10px;
    }
    .reviewer-info img {
        width: 32px;
        height: 32px;
        border-radius: 50%;
        border: 1px solid #38bdf8;
    }
    .reviewer-name {
        font-weight: bold;
        color: #f8fafc;
    }
    .review-stars {
        color: #fbbf24;
        font-size: 0.9rem;
        letter-spacing: 1px;
    }
    .review-text {
        color: #94a3b8;
        font-size: 0.95rem;
        line-height: 1.5;
    }
    /* SCROLL REVEAL */
    .hidden {
        opacity: 0;
        transform: translateY(50px);
        transition: 0.8s ease;
    }
    .show {
        opacity: 1;
        transform: translateY(0);
    }
    footer {
        text-align: center;
        padding: 40px;
        color: #64748b;
        border-top: 1px solid #1e293b;
    }
    
    /* SHARED SOCIAL BUTTON STYLE */
    .social-btn {
        display: inline-flex;
        align-items: center;
        gap: 10px;
        margin-top: 10px;
        margin-right: 10px;
        padding: 12px 25px;
        background: #1e293b;
        color: #38bdf8;
        border: 1px solid #38bdf844;
        border-radius: 8px;
        text-decoration: none;
        font-weight: bold;
        transition: .3s;
        cursor: pointer;
    }
    .social-btn:hover {
        background: #38bdf8;
        color: black;
        box-shadow: 0 0 15px #38bdf8aa;
        transform: scale(1.03); 
    }
    .discord-theme:hover { background: #5865F2; border-color: #5865F2; color: white; }
    .email-theme:hover { background: #ea4335; border-color: #ea4335; color: white; }

    /* RESPONSIVE NAV (HAMBURGER MENU) MODIFICATION */
    .menu-toggle {
        display: none;
        font-size: 28px;
        color: #38bdf8;
        cursor: pointer;
        user-select: none;
    }
    @media (max-width: 850px) {
        .menu-toggle {
            display: block;
        }
        nav {
            display: none;
            position: absolute;
            top: 100%;
            left: 0;
            width: 100%;
            background: rgba(2, 6, 23, 0.95);
            backdrop-filter: blur(10px);
            flex-direction: column;
            padding: 20px 0;
            border-bottom: 1px solid #1e293b;
        }
        nav.active {
            display: flex;
        }
        nav a {
            margin: 15px 0;
            text-align: center;
            font-size: 1.2rem;
            margin-left: 0;
        }
    }

            

/* -------------------------------------------------
   MODERN TUNING LAYER (speed + structure + smoothness)
-------------------------------------------------- */

/* Better section structure/layout flow */
section {
    width: min(1180px, 92%);
    margin: 0 auto;
    padding: 88px 0;
}

header {
    width: min(1180px, 92%);
    margin: 10px auto 0;
    padding: 16px 22px;
    border: 1px solid rgba(56, 189, 248, 0.15);
    border-radius: 14px;
    top: 10px;
    transition: background 0.24s ease, border-color 0.24s ease, box-shadow 0.24s ease;
}

header.scrolled {
    background: rgba(2, 6, 23, 0.96);
    border-color: rgba(56, 189, 248, 0.32);
    box-shadow: 0 12px 28px rgba(0, 0, 0, 0.35);
}

nav a {
    position: relative;
}

nav a::after {
    content: "";
    position: absolute;
    left: 0;
    bottom: -5px;
    width: 100%;
    height: 2px;
    border-radius: 8px;
    background: #38bdf8;
    transform: scaleX(0);
    transform-origin: left center;
    transition: transform 0.22s ease;
}

nav a:hover::after,
nav a.active::after {
    transform: scaleX(1);
}

.hero h1 {
    font-size: clamp(2.5rem, 6vw, 3.9rem);
}

.hero p {
    font-size: clamp(1.05rem, 2.2vw, 1.25rem);
}

/* Faster, smoother cursor glow */
.cursor {
    width: 64px;
    height: 64px;
    background: radial-gradient(circle, #38bdf855 0%, transparent 72%);
    transition: opacity 0.2s ease;
}

/* Scroll progress and back-to-top visual support */
.scroll-progress {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 3px;
    background: linear-gradient(90deg, #22d3ee, #38bdf8, #60a5fa);
    box-shadow: 0 0 12px rgba(56, 189, 248, 0.6);
    transform: scaleX(0);
    transform-origin: left center;
    z-index: 10001;
    pointer-events: none;
}

.back-to-top {
    position: fixed;
    right: 22px;
    bottom: 22px;
    width: 44px;
    height: 44px;
    border: none;
    border-radius: 50%;
    background: linear-gradient(135deg, #22d3ee, #2563eb);
    color: #020617;
    font-size: 1.3rem;
    font-weight: bold;
    cursor: pointer;
    opacity: 0;
    visibility: hidden;
    transform: translateY(12px);
    box-shadow: 0 12px 24px rgba(2, 132, 199, 0.35);
    transition: opacity 0.2s ease, transform 0.2s ease, visibility 0.2s ease;
    z-index: 1000;
}

.back-to-top.show {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.back-to-top:hover {
    transform: translateY(-2px);
}

/* Unified project + library animation style */
.card,
.book-card {
    transform-style: preserve-3d;
    will-change: transform;
    transition: transform 0.2s ease, border-color 0.2s ease, box-shadow 0.2s ease;
}

.card:hover,
.book-card:hover {
    transform: translateY(-8px) rotateY(-3deg);
    border-color: #38bdf8;
    box-shadow: 0 14px 26px rgba(0, 0, 0, 0.42), 0 0 16px rgba(56, 189, 248, 0.2);
}

/* Keep library card effect but less exaggerated and snappier */
.book-card {
    border-left-width: 11px;
}

/* Faster reveal; less sluggish */
.hidden {
    opacity: 0;
    transform: translateY(28px);
    transition: opacity 0.45s ease, transform 0.45s ease;
}

.show {
    opacity: 1;
    transform: translateY(0);
}

.reveal-item {
    opacity: 0;
    transform: translateY(16px) scale(0.99);
    transition: opacity 0.35s ease, transform 0.35s ease;
}

.show .reveal-item {
    opacity: 1;
    transform: translateY(0) scale(1);
}

.reveal-item.in-view {
    opacity: 1;
    transform: translateY(0) scale(1);
}

.projects .card.project-reveal {
    opacity: 0;
    transform: translateY(18px) scale(0.99);
}

.projects .card.project-reveal.in-view {
    opacity: 1;
    transform: translateY(0) scale(1);
}

/* Cleaner spacing in cards/sections */
.projects {
    gap: 24px;
}

.card-content {
    padding: 22px;
}

.feedback-container {
    gap: 26px;
}

footer {
    width: min(1180px, 92%);
    margin: 0 auto;
}

@media (max-width: 850px) {
    header {
        width: 94%;
        padding: 14px 16px;
    }

    section {
        width: 94%;
        padding: 72px 0;
    }

    nav {
        border-radius: 0 0 14px 14px;
    }
}

/* -------------------------------------------------
   2026 EXPERIENCE LAYER (loader + live bg + physical cards)
-------------------------------------------------- */

#liveBg {
    position: fixed;
    inset: 0;
    width: 100%;
    height: 100%;
    z-index: -2;
    pointer-events: none;
    opacity: 0.85;
}

body::after {
    content: "";
    position: fixed;
    inset: 0;
    background: radial-gradient(1200px 700px at 50% -10%, rgba(56, 189, 248, 0.14), transparent 65%);
    pointer-events: none;
    z-index: -1;
}

#loader {
    position: fixed;
    inset: 0;
    background:
        radial-gradient(circle at 18% 20%, rgba(56, 189, 248, 0.16), transparent 42%),
        radial-gradient(circle at 82% 15%, rgba(59, 130, 246, 0.12), transparent 38%),
        #020617;
    display: grid;
    place-items: center;
    z-index: 9999;
    animation: none;
    transition: opacity 0.45s ease, visibility 0.45s ease;
}

#loader.loader-hidden {
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
}

.loader-core {
    width: min(560px, 90%);
    padding: 28px 24px;
    border: 1px solid rgba(56, 189, 248, 0.3);
    border-radius: 18px;
    background: rgba(15, 23, 42, 0.65);
    backdrop-filter: blur(12px);
    box-shadow: 0 26px 60px rgba(0, 0, 0, 0.45), inset 0 0 20px rgba(56, 189, 248, 0.08);
    text-align: center;
}

.loader-ring {
    width: 62px;
    height: 62px;
    margin: 0 auto 14px;
    border-radius: 50%;
    border: 3px solid rgba(56, 189, 248, 0.2);
    border-top-color: #38bdf8;
    border-right-color: #60a5fa;
    animation: spinRing 0.85s linear infinite;
    box-shadow: 0 0 18px rgba(56, 189, 248, 0.35);
}

@keyframes spinRing {
    to { transform: rotate(360deg); }
}

.loader-title {
    font-size: clamp(1.25rem, 3.4vw, 1.8rem);
    font-weight: 800;
    letter-spacing: 0.02em;
    color: #e2f3ff;
}

.loader-subtitle {
    margin-top: 8px;
    color: #93c5fd;
    font-size: 0.98rem;
    min-height: 1.2em;
}

.loader-bar {
    margin: 18px auto 10px;
    width: 100%;
    height: 9px;
    border-radius: 999px;
    background: rgba(30, 41, 59, 0.9);
    overflow: hidden;
    border: 1px solid rgba(56, 189, 248, 0.2);
}

.loader-bar span {
    display: block;
    width: 0%;
    height: 100%;
    border-radius: inherit;
    background: linear-gradient(90deg, #22d3ee, #38bdf8, #60a5fa);
    box-shadow: 0 0 18px rgba(56, 189, 248, 0.75);
    transition: width 0.16s linear;
}

.loader-percent {
    font-size: 0.95rem;
    color: #cbd5e1;
    font-weight: 700;
}

.card,
.book-card {
    position: relative;
    overflow: hidden;
    perspective: 1100px;
    --pointer-glow-size: 120px;
    --rx: 0deg;
    --ry: 0deg;
    --mx: 50%;
    --my: 50%;
    --lift: 0px;
}

.card::after,
.book-card::after {
    content: "";
    position: absolute;
    inset: -1px;
    background: radial-gradient(var(--pointer-glow-size) circle at var(--mx) var(--my), rgba(125, 211, 252, 0.12), transparent 62%);
    opacity: var(--glow-opacity, 0);
    transition: opacity 0.12s ease;
    pointer-events: none;
}

.card.is-tilting,
.book-card.is-tilting {
    transform:
        translateY(calc(-8px - var(--lift)))
        rotateX(var(--rx))
        rotateY(var(--ry));
}

section > h2 {
    letter-spacing: -0.01em;
}

.projects .card,
#libraries .book-card,
.feedback-form-box,
.feedback-list-box {
    border-color: rgba(56, 189, 248, 0.14);
}

@media (max-width: 850px) {
    #loader {
        padding: 16px;
    }

    .loader-core {
        padding: 20px 16px;
    }
}

/* -------------------------------------------------
   LOGO SYSTEM (final placement + size)
-------------------------------------------------- */
.logo {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    min-width: 0;
    line-height: 1;
}

.logo-badge {
    width: 44px;
    height: 44px;
    flex-shrink: 0;
    border-radius: 14px;
    box-shadow: 0 10px 20px rgba(56, 189, 248, 0.32);
}

.logo-badge svg {
    width: 100%;
    height: 100%;
    display: block;
}

.logo-text {
    display: flex;
    flex-direction: column;
    justify-content: center;
    gap: 3px;
}

.logo-word {
    font-size: 1.18rem;
    font-weight: 800;
    color: #e2f3ff;
    letter-spacing: 0.01em;
}

.logo-tag {
    font-size: 0.7rem;
    font-weight: 600;
    color: #93c5fd;
    letter-spacing: 0.04em;
    text-transform: uppercase;
}

@media (max-width: 980px) {
    .logo-badge {
        width: 40px;
        height: 40px;
    }

    .logo-word {
        font-size: 1.07rem;
    }
}

@media (max-width: 850px) {
    .logo {
        gap: 8px;
    }

    .logo-badge {
        width: 36px;
        height: 36px;
        border-radius: 12px;
    }

    .logo-word {
        font-size: 1rem;
    }

    .logo-tag {
        display: none;
    }
}

/* -------------------------------------------------
   UNIFIED CARD HOVER SYSTEM (snappy + synchronized)
-------------------------------------------------- */
.card,
.book-card,
.review-card,
.feedback-form-box,
.feedback-list-box {
    --card-scale: 1;
    --card-lift: 0px;
    transition:
        transform 0.2s cubic-bezier(0.22, 1, 0.36, 1),
        box-shadow 0.2s cubic-bezier(0.22, 1, 0.36, 1),
        border-color 0.2s cubic-bezier(0.22, 1, 0.36, 1);
    will-change: transform, box-shadow;
}

.card:hover,
.book-card:hover,
.review-card:hover,
.feedback-form-box:hover,
.feedback-list-box:hover {
    --card-scale: 1.03;
    --card-lift: 6px;
    transform: translateY(calc(-1 * var(--card-lift))) scale(var(--card-scale));
    box-shadow: 0 20px 36px rgba(2, 6, 23, 0.5), 0 0 14px rgba(56, 189, 248, 0.18);
    border-color: rgba(56, 189, 248, 0.42);
}

/* Keep physical mouse-follow responsive while matching same hover rhythm */
.card.is-tilting,
.book-card.is-tilting {
    --card-scale: 1.03;
    transform:
        translateY(calc(-6px - var(--lift)))
        rotateX(var(--rx))
        rotateY(var(--ry))
        scale(var(--card-scale));
}

@media (max-width: 850px) {
    .card,
    .book-card {
        --pointer-glow-size: 104px;
    }

    .card:hover,
    .book-card:hover,
    .review-card:hover,
    .feedback-form-box:hover,
    .feedback-list-box:hover {
        --card-scale: 1.015;
        --card-lift: 5px;
    }
}

/* --- START OF UPDATED CARD & GLOW LOGIC --- */
.card, .book-card, .review-card, .feedback-form-box, .feedback-list-box {
    position: relative;
    overflow: hidden;
    perspective: 1000px;
    --pointer-glow-size: 130px;
    /* Removed general transitions to let JS handle the Tilt smoothly */
    transition: border-color 0.3s ease, box-shadow 0.3s ease;
    transform: rotateX(var(--rx, 0deg)) rotateY(var(--ry, 0deg)) translateY(var(--lift, 0px));
    will-change: transform;
}

/* Neutralize old hover transform rules so JS-driven tilt stays in control */
.card:hover, .book-card:hover, .review-card:hover, .feedback-form-box:hover, .feedback-list-box:hover {
    transform: rotateX(var(--rx, 0deg)) rotateY(var(--ry, 0deg)) translateY(var(--lift, 0px));
}

.card::after, .book-card::after, .review-card::after, .feedback-form-box::after, .feedback-list-box::after {
    content: "";
    position: absolute;
    inset: 0;
    background: radial-gradient(
        var(--pointer-glow-size) circle at var(--mx, 50%) var(--my, 50%),
        rgba(56, 189, 248, 0.15),
        transparent 80%
    );
    opacity: var(--glow-opacity, 0);
    pointer-events: none;
    z-index: 3;
    /* Transition only for opacity to prevent the glow from 'sliding' to center */
    transition: opacity 0.4s ease;
}

/* --- LOADER VITALITY ANIMATIONS --- */
#loaderTitle {
    animation: loaderFloat 2.5s ease-in-out infinite;
    will-change: opacity, transform;
    backface-visibility: hidden;
    transform: translateZ(0);
}

#loaderSubtitle {
    animation: loaderPulse 1.5s ease-in-out infinite;
    will-change: opacity, transform;
    backface-visibility: hidden;
    transform: translateZ(0);
}

@keyframes loaderFloat {
    0%, 100% { transform: translateY(0); text-shadow: 0 0 20px rgba(56, 189, 248, 0.4); }
    50% { transform: translateY(-8px); text-shadow: 0 0 35px rgba(56, 189, 248, 0.8); }
}

@keyframes loaderPulse {
    0%, 100% { opacity: 0.6; transform: scale(0.98); }
    50% { opacity: 1; transform: scale(1); }
}

/* 1. Hero Text Animations */
.hero-title {
    animation: revealText 1.2s cubic-bezier(0.77, 0, 0.175, 1) forwards, floatText 3s ease-in-out infinite 1.2s;
    opacity: 0;
    will-change: transform, opacity;
}

.hero-subtitle {
    animation: revealText 1.2s cubic-bezier(0.77, 0, 0.175, 1) forwards 0.3s, floatText 4s ease-in-out infinite 1.5s;
    opacity: 0;
    will-change: transform, opacity;
}

@keyframes revealText {
    0% { transform: translateY(30px); filter: blur(10px); opacity: 0; }
    100% { transform: translateY(0); filter: blur(0); opacity: 1; }
}

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

/* 4. See My Work Button Shine */
.cta-button {
    position: relative;
    overflow: hidden;
}

.cta-button::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: linear-gradient(45deg, transparent, rgba(255,255,255,0.3), transparent);
    transform: rotate(45deg);
    animation: buttonShine 3s infinite;
}

@keyframes buttonShine {
    0% { left: -100%; }
    20% { left: 100%; }
    100% { left: 100%; }
}

/* --- TRUST & CONVERSION PACK --- */
.hero-cta {
    display: flex;
    justify-content: center;
    align-items: center;
    flex-wrap: wrap;
    gap: 12px;
    margin-top: 22px;
}

.hero-stats {
    margin: 18px auto 0;
    display: flex;
    justify-content: center;
    align-items: center;
    flex-wrap: wrap;
    gap: 10px;
    color: #dbeafe;
}

.hero-stat {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 6px 10px;
    border-radius: 9px;
    background: rgba(15, 23, 42, 0.45);
    border: 1px solid rgba(148, 163, 184, 0.15);
    font-size: 0.86rem;
}

.hero-stat i {
    width: 16px;
    height: 16px;
    color: #93c5fd;
}

.hero-stat .stat-number {
    color: #e2f3ff;
    font-size: 1.01em;
    font-weight: 800;
}

.hero-stat-divider {
    width: 1px;
    height: 20px;
    background: rgba(148, 163, 184, 0.28);
}

.btn-hire {
    background: #38bdf8;
    color: #031321;
    border: 1px solid rgba(125, 211, 252, 0.75);
    box-shadow: 0 0 28px rgba(56, 189, 248, 0.4);
}

.btn-hire:hover {
    transform: translateY(-2px) scale(1.04);
    box-shadow: 0 0 34px rgba(56, 189, 248, 0.55);
}

.budget-note {
    margin-top: 10px;
    color: rgba(219, 234, 254, 0.72);
    font-size: 0.78rem;
    letter-spacing: 0.01em;
}

.trust-strip {
    margin: 24px auto 0;
    display: flex;
    justify-content: center;
    align-items: center;
    flex-wrap: wrap;
    gap: 10px;
    max-width: 820px;
}

.trust-item {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 8px 12px;
    border-radius: 999px;
    background: rgba(15, 23, 42, 0.65);
    border: 1px solid rgba(56, 189, 248, 0.22);
    color: #dbeafe;
    font-size: 0.88rem;
}

.trust-icon {
    width: 18px;
    height: 18px;
    flex: 0 0 18px;
    filter: drop-shadow(0 0 6px currentColor);
}

.icon-performance { color: #fbbf24; }
.icon-secure { color: #34d399; }
.icon-scalable { color: #38bdf8; }

.card-content {
    position: relative;
    z-index: 4;
}

.project-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-bottom: 12px;
}

.project-filters {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin-top: 12px;
    margin-bottom: 22px;
}

.filter-chip {
    border: 1px solid rgba(148, 163, 184, 0.28);
    background: rgba(15, 23, 42, 0.62);
    color: #dbeafe;
    border-radius: 999px;
    font-size: 0.82rem;
    font-weight: 600;
    padding: 7px 14px;
    cursor: pointer;
    transition: background 0.2s ease, border-color 0.2s ease, transform 0.2s ease, color 0.2s ease;
}

.filter-chip:hover {
    transform: translateY(-1px);
    border-color: rgba(56, 189, 248, 0.55);
}

.filter-chip.active {
    background: rgba(56, 189, 248, 0.2);
    color: #7dd3fc;
    border-color: rgba(56, 189, 248, 0.6);
}

.projects .card {
    transition: opacity 0.22s ease, transform 0.22s ease, box-shadow 0.22s ease, border-color 0.22s ease;
}

.projects .card.filter-out {
    opacity: 0;
    transform: translateY(10px) scale(0.985);
}

.projects .card.filter-hidden {
    display: none;
}

.projects .card::before {
    content: attr(data-tools);
    position: absolute;
    left: 14px;
    right: 14px;
    bottom: 14px;
    z-index: 5;
    padding: 7px 10px;
    border-radius: 9px;
    border: 1px solid rgba(148, 163, 184, 0.24);
    background: rgba(2, 6, 23, 0.82);
    color: #dbeafe;
    font-size: 0.74rem;
    font-weight: 600;
    letter-spacing: 0.01em;
    opacity: 0;
    transform: translateY(8px);
    transition: opacity 0.18s ease, transform 0.18s ease;
    pointer-events: none;
}

.projects .card:hover::before {
    opacity: 1;
    transform: translateY(0);
}

.project-tags .tag {
    font-size: 11px;
    font-weight: 500;
    letter-spacing: 0.02em;
    color: #bfdbfe;
    padding: 2px 8px;
    border-radius: 5px;
    background: rgba(191, 219, 254, 0.12);
    border: 1px solid rgba(191, 219, 254, 0.3);
}

.project-tags .tag-logic {
    color: #38bdf8;
    background: rgba(56, 189, 248, 0.12);
    border-color: rgba(56, 189, 248, 0.3);
}

.project-tags .tag-design {
    color: #c084fc;
    background: rgba(192, 132, 252, 0.12);
    border-color: rgba(192, 132, 252, 0.3);
}

.project-tags .tag-sec {
    color: #34d399;
    background: rgba(52, 211, 153, 0.12);
    border-color: rgba(52, 211, 153, 0.3);
}

.project-tags .tag-math {
    color: #fbbf24;
    background: rgba(251, 191, 36, 0.12);
    border-color: rgba(251, 191, 36, 0.3);
}

.project-tags .tag-arch {
    color: #818cf8;
    background: rgba(129, 140, 248, 0.12);
    border-color: rgba(129, 140, 248, 0.3);
}

.featured-ribbon {
    position: absolute;
    top: 14px;
    right: -34px;
    z-index: 6;
    padding: 6px 40px;
    background: linear-gradient(90deg, #0ea5e9, #2563eb);
    color: #e0f2fe;
    font-size: 0.72rem;
    font-weight: 800;
    letter-spacing: 0.04em;
    text-transform: uppercase;
    box-shadow: 0 10px 18px rgba(14, 165, 233, 0.28);
    transform: rotate(33deg);
    pointer-events: none;
}

.featured-ribbon-new {
    top: 12px;
    right: 12px;
    padding: 5px 10px;
    border-radius: 999px;
    font-size: 0.67rem;
    letter-spacing: 0.06em;
    box-shadow: 0 8px 16px rgba(14, 165, 233, 0.26);
    transform: none;
}

#contact {
    position: relative;
}

.availability-badge {
    position: absolute;
    top: 22px;
    right: 10%;
    padding: 7px 12px;
    border-radius: 999px;
    background: rgba(14, 116, 144, 0.3);
    border: 1px solid rgba(56, 189, 248, 0.45);
    color: #dbeafe;
    font-size: 0.78rem;
    font-weight: 700;
    box-shadow: 0 0 16px rgba(56, 189, 248, 0.35);
}

.copy-toast {
    position: fixed;
    right: 24px;
    bottom: 24px;
    z-index: 1200;
    padding: 10px 14px;
    border-radius: 10px;
    border: 1px solid rgba(56, 189, 248, 0.4);
    background: rgba(2, 6, 23, 0.9);
    color: #e2f3ff;
    font-weight: 700;
    opacity: 0;
    transform: translateY(10px);
    pointer-events: none;
    transition: opacity 0.2s ease, transform 0.2s ease;
}

.copy-toast.show {
    opacity: 1;
    transform: translateY(0);
}

.sticky-hire-cta {
    position: fixed;
    top: 92px;
    right: 20px;
    z-index: 1200;
    padding: 10px 14px;
    border-radius: 10px;
    border: 1px solid rgba(56, 189, 248, 0.55);
    background: #38bdf8;
    color: #031321;
    font-weight: 800;
    cursor: pointer;
    box-shadow: 0 10px 24px rgba(56, 189, 248, 0.35);
    opacity: 0;
    transform: translateY(-8px);
    pointer-events: none;
    transition: opacity 0.2s ease, transform 0.2s ease, box-shadow 0.2s ease;
}

.sticky-hire-cta.show {
    opacity: 1;
    transform: translateY(0);
    pointer-events: auto;
}

.sticky-hire-cta:hover {
    box-shadow: 0 12px 28px rgba(56, 189, 248, 0.46);
}

.budget-note-contact {
    margin-top: 12px;
}

.cta-strip {
    padding-top: 18px;
    padding-bottom: 12px;
}

.cta-strip-inner {
    width: min(1100px, 100%);
    margin: 0 auto;
    padding: 20px;
    border-radius: 16px;
    border: 1px solid rgba(56, 189, 248, 0.3);
    background: linear-gradient(130deg, rgba(14, 116, 144, 0.22), rgba(30, 41, 59, 0.75));
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 14px;
    flex-wrap: wrap;
}

.cta-strip-inner p {
    margin: 0;
    color: #dbeafe;
    font-weight: 600;
    font-size: 1rem;
}

.cta-strip-btn {
    margin-top: 0;
}

@media (max-width: 900px) {
    .availability-badge {
        position: static;
        display: inline-flex;
        margin-bottom: 14px;
    }

    .hero-stat-divider {
        display: none;
    }

    .cta-strip-inner {
        justify-content: center;
        text-align: center;
    }

    .sticky-hire-cta {
        top: auto;
        bottom: 84px;
        right: 14px;
        padding: 9px 12px;
    }
}
/* --- END OF UPDATED LOGIC --- */