:root {
    --primary: #0b132b;
    --secondary: #1c2541;
    --accent: #00e5ff;
    --dark: #070b16;
    --light: #f5f7ff;
    --neon: #3ddbd9;
    --success: #4caf50;
    --danger: #ff5252;
    --tech-blue: #0288d1;
    --shadow: rgba(0, 0, 0, 0.5);
}

* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
    font-family: 'Tajawal', sans-serif;
}

body {
    background: linear-gradient(rgba(7, 11, 22, 0.9), rgba(7, 11, 22, 0.9)), url(assets/OIP.jpg) no-repeat center center/cover;
    color: var(--light);
    min-height: 100vh;
    overflow-x: hidden;
    position: relative;
}

.logo-bar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 2rem;
    background: rgba(7, 11, 22, 0.95);
    border-bottom: 2px solid var(--neon);
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 100;
    backdrop-filter: blur(15px);
}

.logo {
    height: 60px;
    transition: transform 0.4s ease, filter 0.4s ease;
}

.logo:hover {
    transform: scale(1.15);
    filter: drop-shadow(0 0 12px var(--neon));
}

.logo-bar span {
    font-size: 1.6rem;
    font-weight: 900;
    color: var(--neon);
    text-shadow: 0 0 8px var(--neon);
    letter-spacing: 1px;
}

.splash-screen {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(145deg, var(--primary), var(--secondary));
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    z-index: 1000;
    transition: all 1s cubic-bezier(0.68, -0.55, 0.265, 1.55);
}

.splash-content {
    text-align: center;
    transform: translateY(-60px);
    opacity: 0;
    animation: fadeIn 1.2s forwards 0.6s;
}

.sponsors-container {
    display: flex;
    justify-content: center;
    gap: 2rem;
    margin: 2rem 0;
    flex-wrap: wrap;
}

.sponsor-card {
    background: rgba(61, 219, 217, 0.15);
    border-radius: 12px;
    padding: 1.5rem;
    width: 180px;
    backdrop-filter: blur(10px);
    border: 1px solid rgba(61, 219, 217, 0.4);
    transition: transform 0.4s ease, box-shadow 0.4s ease;
    box-shadow: 0 8px 15px var(--shadow);
    position: relative;
    overflow: hidden;
}

.sponsor-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: radial-gradient(circle at top left, rgba(61, 219, 217, 0.2), transparent 70%);
    opacity: 0;
    transition: opacity 0.4s ease;
}

.sponsor-card:hover::before {
    opacity: 1;
}

.sponsor-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 12px 25px rgba(61, 219, 217, 0.5);
    border-color: var(--neon);
}

.sponsor-image {
    width: 120px;
    height: 120px;
    border-radius: 50%;
    object-fit: cover;
    border: 3px solid var(--neon);
    margin: 0 auto 1rem;
    display: block;
    box-shadow: 0 0 15px rgba(61, 219, 217, 0.7);
    transition: transform 0.4s ease;
}

.sponsor-card:hover .sponsor-image {
    transform: rotate(360deg);
}

.sponsor-title {
    color: var(--light);
    font-size: 1rem;
    margin-bottom: 0.5rem;
    text-align: center;
    font-weight: 500;
}

.sponsor-name {
    color: var(--neon);
    font-size: 1.1rem;
    text-align: center;
    font-weight: 700;
}

.splash-message {
    font-size: 2.5rem;
    background: linear-gradient(90deg, var(--neon), var(--accent));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    margin: 1.5rem 0;
    text-shadow: 0 0 15px rgba(61, 219, 217, 0.5);
    font-weight: 900;
}

.loading-bar {
    width: 300px;
    height: 5px;
    background: rgba(255, 255, 255, 0.1);
    margin-top: 2rem;
    border-radius: 5px;
    overflow: hidden;
    box-shadow: 0 0 10px rgba(61, 219, 217, 0.3);
}

.loading-progress {
    height: 100%;
    width: 0%;
    background: linear-gradient(90deg, var(--neon), var(--accent));
    animation: loading 5s linear forwards;
    box-shadow: 0 0 15px var(--neon);
}

.container {
    max-width: 1400px;
    margin: 8rem auto 4rem;
    padding: 2rem;
    opacity: 0;
    transform: translateY(30px);
    transition: all 1s ease-out;
    display: none;
    background: rgba(7, 11, 22, 0.85);
    border-radius: 12px;
    box-shadow: 0 10px 30px var(--shadow);
    backdrop-filter: blur(10px);
    position: relative;
}

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

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

.title {
    font-size: 2.8rem;
    margin-bottom: 0.7rem;
    background: linear-gradient(90deg, var(--neon), var(--accent));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    position: relative;
    font-weight: 900;
    letter-spacing: 1px;
}

.title::after {
    content: '';
    position: absolute;
    bottom: -8px;
    left: 50%;
    transform: translateX(-50%);
    width: 100px;
    height: 4px;
    background: var(--neon);
    box-shadow: 0 0 12px var(--neon);
    border-radius: 2px;
}

.subtitle {
    color: var(--light);
    font-size: 1.3rem;
    margin-bottom: 1.5rem;
    font-weight: 500;
    opacity: 0.9;
}

.progress-tracker {
    text-align: center;
    margin-bottom: 1.5rem;
    font-size: 1.1rem;
    color: var(--neon);
    font-weight: 700;
}

.course-table {
    width: 100%;
    border-collapse: separate;
    border-spacing: 0;
    margin: 2rem 0;
    border-radius: 12px;
    box-shadow: 0 10px 25px var(--shadow);
    background: rgba(18, 18, 18, 0.9);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(61, 219, 217, 0.4);
    position: relative;
    overflow: hidden;
    direction: rtl;
}

.course-table::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, var(--neon), var(--accent));
}

.course-table th {
    background: linear-gradient(180deg, var(--primary), var(--secondary));
    color: var(--light);
    padding: 1.2rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 1.2px;
    text-align: center;
    font-size: 1rem;
}

.course-table th:not(:last-child)::after {
    content: '';
    position: absolute;
    right: 0;
    top: 50%;
    transform: translateY(-50%);
    height: 60%;
    width: 1px;
    background: rgba(61, 219, 217, 0.4);
}

.course-table td {
    padding: 1.2rem;
    text-align: right;
    border-bottom: 1px solid rgba(61, 219, 217, 0.2);
    transition: all 0.4s ease;
    position: relative;
    font-size: 0.95rem;
}

tr{
    margin-right: 50px;
}

.course-table tr:last-child td {
    border-bottom: none;
    
}

.course-table tr:hover td {
    background: rgba(61, 219, 217, 0.2);
    transform: translateY(-2px);
}

.day-cell {
    font-weight: 700;
    color: var(--neon);
    font-size: 1rem;
}

.date-cell {
    color: var(--light);
    font-weight: 500;
    font-size: 0.95rem;
}

.subject-cell {
    font-weight: 700;
    position: relative;
    display: flex;
    align-items: center;
    justify-content: flex-end;
    gap: 0.6rem;
    font-size: 0.95rem;
    cursor: pointer;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    max-width: 200px;
    direction: rtl;
}

.subject-cell:hover .tooltip {
    visibility: visible;
    opacity: 1;
}

.subject-icon {
    font-size: 1.2rem;
    color: var(--neon);
    transition: transform 0.3s ease;
    margin-right: 0.5rem;
}

.subject-cell:hover .subject-icon {
    transform: scale(1.2);
}

.tooltip {
    visibility: hidden;
    opacity: 0;
    position: absolute;
    top: -45px;
    left: 50%;
    transform: translateX(-50%);
    background: rgba(7, 11, 22, 0.95);
    color: var(--light);
    padding: 0.6rem;
    border-radius: 6px;
    font-size: 0.85rem;
    width: 180px;
    text-align: center;
    box-shadow: 0 4px 8px var(--shadow);
    transition: all 0.3s ease;
    z-index: 10;
    word-wrap: break-word;
}

.tooltip::after {
    content: '';
    position: absolute;
    bottom: -6px;
    left: 50%;
    transform: translateX(-50%);
    border-width: 6px;
    border-style: solid;
    border-color: rgba(7, 11, 22, 0.95) transparent transparent transparent;
}

.completed::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 0;
    right: 0;
    height: 2px;
    background: var(--success);
    transform: translateY(-50%);
    animation: strike 0.4s ease-out forwards;
}

.action-cell {
    width: 120px;
}

.complete-btn {
    background: linear-gradient(135deg, var(--success), #2e7d32);
    color: white;
    border: none;
    padding: 0.6rem 1.2rem;
    border-radius: 25px;
    cursor: pointer;
    font-weight: 700;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    transition: all 0.4s ease;
    box-shadow: 0 4px 8px var(--shadow);
    width: 100%;
    max-width: 100px;
    margin: 0 auto;
    font-size: 0.9rem;
}

.complete-btn:hover {
    transform: translateY(-3px);
    box-shadow: 0 6px 12px rgba(76, 175, 80, 0.5);
}

.complete-btn.completed {
    background: linear-gradient(135deg, var(--danger), #c62828);
}

.complete-btn.completed:hover {
    box-shadow: 0 6px 12px rgba(244, 67, 54, 0.5);
}

footer {
    background: rgba(7, 11, 22, 0.98);
    padding: 2rem;
    text-align: center;
    border-top: 2px solid rgba(61, 219, 217, 0.4);
    backdrop-filter: blur(10px);
    margin-top: 3rem;
}

.copyright {
    color: var(--light);
    margin-bottom: 0.7rem;
    font-size: 1rem;
    opacity: 0.9;
}

.designer {
    color: var(--neon);
    font-size: 0.9rem;
    font-weight: 500;
    text-shadow: 0 0 5px var(--neon);
}

.tech-elements {
    position: fixed;
    width: 100%;
    height: 100%;
    top: 0;
    left: 0;
    pointer-events: none;
    z-index: -1;
    overflow: hidden;
}

.tech-circuit {
    position: absolute;
    background: radial-gradient(circle, rgba(61, 219, 217, 0.2) 0%, transparent 70%);
    border: 1px solid rgba(61, 219, 217, 0.3);
    border-radius: 50%;
}

.circuit-1 {
    width: 300px;
    height: 300px;
    top: -100px;
    right: -100px;
    animation: float 14s infinite ease-in-out;
}

.circuit-2 {
    width: 400px;
    height: 400px;
    bottom: -150px;
    left: -150px;
    animation: float 20s infinite ease-in-out reverse;
}

.circuit-line {
    position: absolute;
    background: linear-gradient(90deg, transparent, var(--neon), transparent);
    height: 2px;
    opacity: 0.3;
    animation: circuitFlow 10s linear infinite;
}

.circuit-line-1 {
    width: 100%;
    top: 20%;
    left: 0;
}

.circuit-line-2 {
    width: 100%;
    bottom: 20%;
    right: 0;
    animation-direction: reverse;
}

.binary-background {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -1;
    opacity: 0.12;
    pointer-events: none;
}

.binary-digit {
    position: absolute;
    color: var(--neon);
    font-family: 'Courier New', monospace;
    font-size: 18px;
    font-weight: bold;
    user-select: none;
    animation: fadeInOut 7s infinite alternate;
    text-shadow: 0 0 10px rgba(61, 219, 217, 0.6);
}

/* Responsive Table as Cards */
.course-table-container {
    margin: 2rem 0;
}

.course-card {
    background: rgba(18, 18, 18, 0.9);
    border-radius: 12px;
    padding: 1.2rem;
    margin-bottom: 1.2rem;
    box-shadow: 0 10px 25px var(--shadow);
    border: 1px solid rgba(61, 219, 217, 0.4);
    position: relative;
    overflow: hidden;
    display: none;
}

.course-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, var(--neon), var(--accent));
}

.course-card-content {
    display: flex;
    flex-direction: column;
    gap: 0.8rem;
}

.course-card-content div {
    display: flex;
    flex-direction: column;
    align-items: flex-end;
}

.course-card-content .label {
    font-weight: 700;
    color: var(--neon);
    font-size: 1rem;
    margin-bottom: 0.3rem;
}

.course-card-content .value {
    color: var(--light);
    font-size: 0.95rem;
    text-align: right;
    word-wrap: break-word;
    max-width: 100%;
}

.course-card .subject-cell {
    justify-content: flex-end;
    max-width: 100%;
    white-space: normal;
}

.course-card .tooltip {
    top: auto;
    bottom: -45px;
    width: 90%;
    max-width: 300px;
}

.course-card .tooltip::after {
    top: -6px;
    bottom: auto;
    border-color: transparent transparent rgba(7, 11, 22, 0.95) transparent;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(-60px); }
    to { opacity: 1; transform: translateY(0); }
}

@keyframes loading {
    from { width: 0%; }
    to { width: 100%; }
}

@keyframes float {
    0%, 100% { transform: translate(0, 0); }
    25% { transform: translate(40px, 40px); }
    50% { transform: translate(0, 60px); }
    75% { transform: translate(-40px, 40px); }
}

@keyframes circuitFlow {
    0% { transform: translateX(-100%); }
    100% { transform: translateX(100%); }
}

@keyframes strike {
    from { width: 0%; }
    to { width: 100%; }
}

@keyframes fadeInOut {
    0%, 100% { opacity: 0.08; }
    50% { opacity: 0.25; }
}

@media (max-width: 1200px) {
    .container {
        max-width: 900px;
    }

    .title {
        font-size: 2.5rem;
    }

    .sponsor-card {
        width: 160px;
    }
}

@media (max-width: 992px) {
    .logo {
        height: 50px;
    }

    .sponsor-image {
        width: 100px;
        height: 100px;
    }

    .title {
        font-size: 2.2rem;
        margin-top: 75px;
    }

    .course-table th, .course-table td {
        padding: 1rem;
        font-size: 0.9rem;
    }
}

@media (max-width: 768px) {
    .logo-bar {
        flex-direction: column;
        padding: 0.8rem;
        gap: 0.8rem;
    }

    .logo {
        height: 45px;
    }

    .logo-bar span {
        font-size: 1.4rem;
    }

    .container {
        margin-top: 7rem;
        padding: 1.5rem;
    }

    .title {
        font-size: 2rem;
    }

    .subtitle {
        font-size: 1.1rem;
    }

    .sponsors-container {
        flex-direction: column;
        align-items: center;
        gap: 1.2rem;
    }

    .sponsor-card {
        width: 80%;
        max-width: 220px;
    }

    .course-table {
        display: none;
    }

    .course-card {
        display: block;
    }

    .complete-btn {
        padding: 0.5rem 1rem;
        font-size: 0.85rem;
        max-width: 90px;
    }
}

@media (max-width: 576px) {
    .container {
        margin: 6rem 1rem 3rem;
        padding: 1rem;
    }

    .course-card {
        padding: 1rem;
        margin-bottom: 1rem;
    }

    .course-card-content .label {
        font-size: 0.9rem;
    }

    .course-card-content .value {
        font-size: 0.85rem;
    }

    .complete-btn {
        font-size: 0.8rem;
        padding: 0.4rem 0.8rem;
        max-width: 80px;
    }

    .title {
        font-size: 1.8rem;
    }

    .subtitle {
        font-size: 1rem;
    }

    .splash-message {
        font-size: 2rem;
    }

    .binary-digit {
        font-size: 14px;
    }

    .tooltip {
        width: 80%;
        font-size: 0.8rem;
        padding: 0.5rem;
    }
}

@media (max-width: 400px) {
    .container {
        margin: 5rem 0.5rem 2rem;
    }

    .logo-bar {
        padding: 0.5rem;
    }

    .logo {
        height: 40px;
    }

    .logo-bar span {
        font-size: 1.2rem;
    }

    .sponsor-card {
        width: 90%;
        padding: 1rem;
    }

    .sponsor-image {
        width: 90px;
        height: 90px;
    }

    .course-card-content .label,
    .course-card-content .value {
        font-size: 0.8rem;
    }

    .complete-btn {
        font-size: 0.75rem;
        padding: 0.3rem 0.7rem;
    }

    .title {
        font-size: 1.6rem;
    }

    .subtitle {
        font-size: 0.9rem;
    }
}