:root {
    --bg-depth: #0a0e17;
    --bg-surface: rgba(20, 26, 39, 0.7);
    --text-primary: #e2e8f0;
    --text-secondary: #94a3b8;
    --accent-1: #00f2fe;
    --accent-2: #4facfe;
    --accent-3: #ff0055;
    --card-border: rgba(255, 255, 255, 0.15);
    --shadow-card: 0 10px 25px rgba(0,0,0,0.5);
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Cairo', sans-serif;
    background-color: var(--bg-depth);
    background-image: 
        radial-gradient(at 10% 10%, rgba(79, 172, 254, 0.15) 0px, transparent 50%),
        radial-gradient(at 90% 90%, rgba(213, 126, 235, 0.15) 0px, transparent 50%);
    color: var(--text-primary);
    line-height: 1.6;
    display: flex;
    flex-direction: column;
    min-height: 100vh;
}

.container {
    width: 100%;
    max-width: 1100px;
    margin: 0 auto;
    padding: 0 20px;
}

header {
    background: rgba(10, 14, 23, 0.85);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid rgba(255,255,255,0.05);
    padding: 18px 0;
    position: sticky;
    top: 0;
    z-index: 100;
}

.header-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

header .logo {
    font-size: 1.6rem;
    font-weight: 900;
    background: linear-gradient(135deg, var(--accent-1), var(--accent-2));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    text-decoration: none;
}

header nav ul {
    display: flex;
    list-style: none;
    gap: 20px;
}

header nav a {
    color: var(--text-primary);
    text-decoration: none;
    font-weight: 600;
    font-size: 0.95rem;
    transition: color 0.3s;
}

header nav a:hover {
    color: var(--accent-1);
}

.intro-box {
    background: var(--bg-surface);
    backdrop-filter: blur(20px);
    border: 1px solid var(--card-border);
    border-radius: 12px;
    padding: 30px;
    margin: 30px 0 25px;
    box-shadow: var(--shadow-card);
}

.intro-box h1 {
    font-size: 2rem;
    font-weight: 800;
    margin-bottom: 8px;
    background: linear-gradient(135deg, #fff 0%, #94a3b8 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.intro-box p {
    color: var(--text-secondary);
    font-size: 1rem;
}

.sections-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 18px;
    margin-bottom: 35px;
}

.card {
    background: var(--bg-surface);
    backdrop-filter: blur(10px);
    /* مستطيلات أصغر بحواف زاهية */
    border: 2px solid transparent;
    background-clip: padding-box, border-box;
    background-origin: padding-box, border-box;
    background-image: linear-gradient(var(--bg-surface), var(--bg-surface)), var(--card-border-grad, linear-gradient(135deg, var(--accent-1), var(--accent-2)));
    border-radius: 12px;
    padding: 18px;
    display: flex;
    align-items: center;
    gap: 15px;
    cursor: pointer;
    transition: all 0.35s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    box-shadow: var(--shadow-card);
}

.card:hover {
    transform: translateY(-5px) scale(1.01);
    box-shadow: 0 12px 30px rgba(0,0,0,0.6);
    border-color: transparent;
    background-image: linear-gradient(var(--bg-surface), var(--bg-surface)), linear-gradient(135deg, var(--accent-3), var(--accent-1));
}

.card i {
    font-size: 2.1rem;
    background: linear-gradient(135deg, var(--accent-1), var(--accent-2));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: transform 0.3s;
}

.card:hover i {
    transform: scale(1.1) rotate(-3deg);
}

.card-content h3 {
    font-size: 1.15rem;
    font-weight: 700;
    color: #fff;
    margin-bottom: 3px;
    transition: color 0.3s;
}

.card:hover .card-content h3 {
    color: var(--accent-1);
}

.card-content p {
    font-size: 0.8rem;
    color: var(--text-secondary);
}

.form-box {
    background: var(--bg-surface);
    backdrop-filter: blur(15px);
    border: 1px solid var(--card-border);
    padding: 25px;
    border-radius: 12px;
    margin-bottom: 35px;
    box-shadow: var(--shadow-card);
}

.form-box h3 {
    color: #fff;
    font-size: 1.25rem;
    margin-bottom: 18px;
    display: flex;
    align-items: center;
    gap: 10px;
}

.form-box h3 i {
    background: linear-gradient(135deg, var(--accent-1), var(--accent-2));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.form-group {
    display: grid;
    grid-template-columns: 1fr 1fr auto;
    gap: 12px;
    align-items: center;
}

.form-group input {
    padding: 11px 15px;
    background: rgba(0, 0, 0, 0.3);
    border: 1px solid rgba(255,255,255,0.05);
    border-radius: 6px;
    color: #fff;
    outline: none;
    font-family: 'Cairo', sans-serif;
    font-size: 0.9rem;
    transition: all 0.3s;
}

.form-group input:focus {
    border-color: var(--accent-2);
    box-shadow: 0 0 8px rgba(79, 172, 254, 0.25);
}

.form-group button {
    background: linear-gradient(135deg, var(--accent-2), var(--accent-1));
    color: #0a0e17;
    padding: 11px 24px;
    border: none;
    border-radius: 6px;
    font-family: 'Cairo', sans-serif;
    font-weight: 700;
    cursor: pointer;
    transition: all 0.3s;
}

.form-group button:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 15px rgba(79, 172, 254, 0.4);
}

.msg-box, .alert-box {
    padding: 12px;
    border-radius: 8px;
    margin-bottom: 20px;
    text-align: center;
    font-size: 0.9rem;
}

.msg-box {
    background: rgba(56, 175, 115, 0.1);
    border: 1px solid rgba(56, 175, 115, 0.2);
    color: #8ceabb;
}

.alert-box {
    background: rgba(255, 0, 85, 0.1);
    border: 1px solid rgba(255, 0, 85, 0.2);
    color: #ff80ab;
}

footer {
    background: rgba(10, 14, 23, 0.9);
    color: var(--text-secondary);
    text-align: center;
    padding: 20px 0;
    border-top: 1px solid rgba(255,255,255,0.03);
    font-size: 0.85rem;
    margin-top: auto;
}

@media (max-width: 768px) {
    .form-group {
        grid-template-columns: 1fr;
    }
}