/* ===================================================================
   GoldySoft Developer Tools - Custom Styles
   تصميم احترافي متناسق مع هوية مجموعة الأدوات (Cairo + التدرّج البنفسجي)
   =================================================================== */

:root {
    --gs-primary: #667eea;
    --gs-secondary: #764ba2;
    --gs-gradient: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    --gs-dark: #1f2937;
    --gs-muted: #6b7280;
    --gs-bg: #f5f7fa;
    --gs-card-radius: 16px;
    --gs-shadow: 0 10px 30px rgba(0, 0, 0, 0.08);
    --gs-shadow-hover: 0 16px 40px rgba(102, 126, 234, 0.25);
    --gs-transition: all 0.25s ease;
}

* { box-sizing: border-box; }

body {
    font-family: 'Cairo', 'Segoe UI', Tahoma, sans-serif;
    background: var(--gs-bg);
    color: var(--gs-dark);
    margin: 0;
    line-height: 1.7;
}

/* ----------------------- Header ----------------------- */
.header {
    background: var(--gs-gradient);
    color: #fff;
    padding: 2.5rem 0 3rem;
    box-shadow: var(--gs-shadow);
}

.header h1 {
    font-weight: 800;
    font-size: clamp(1.6rem, 4vw, 2.4rem);
    margin: 0 0 .5rem;
}

.header p { opacity: .92; margin: 0; font-size: clamp(.9rem, 2.5vw, 1.05rem); }

.version {
    display: inline-block;
    margin-top: .75rem;
    padding: .25rem .9rem;
    background: rgba(255, 255, 255, .18);
    border: 1px solid rgba(255, 255, 255, .35);
    border-radius: 50px;
    font-size: .85rem;
    font-weight: 600;
}

.btn-back {
    border-radius: 50px !important;
    font-weight: 600;
    transition: var(--gs-transition);
}
.btn-back:hover { transform: translateX(-4px); background: rgba(255,255,255,.15); }

/* Header stats */
.header-stats {
    display: flex;
    gap: 1.25rem;
    justify-content: flex-end;
    flex-wrap: wrap;
}
.stat-item { text-align: center; min-width: 70px; }
.stat-number {
    font-size: 1.6rem;
    font-weight: 800;
    line-height: 1.2;
}
.stat-label { font-size: .8rem; opacity: .85; }

/* ----------------------- Tools navigation ----------------------- */
.tools-nav {
    border: none;
    border-radius: var(--gs-card-radius);
    box-shadow: var(--gs-shadow);
    margin: -1.75rem 0 2rem;
    background: #fff;
}

.nav-buttons {
    display: flex;
    flex-wrap: wrap;
    gap: .6rem;
    justify-content: center;
}

.nav-btn {
    display: inline-flex;
    align-items: center;
    gap: .5rem;
    padding: .65rem 1.15rem;
    border: 2px solid #e5e7eb;
    border-radius: 50px;
    background: #fff;
    color: var(--gs-dark);
    font-family: inherit;
    font-weight: 600;
    font-size: .9rem;
    cursor: pointer;
    transition: var(--gs-transition);
}
.nav-btn i { color: var(--gs-primary); transition: var(--gs-transition); }
.nav-btn:hover {
    border-color: var(--gs-primary);
    transform: translateY(-2px);
    box-shadow: 0 6px 16px rgba(102, 126, 234, .2);
}
.nav-btn.active {
    background: var(--gs-gradient);
    border-color: transparent;
    color: #fff;
}
.nav-btn.active i { color: #fff; }

/* ----------------------- Tool sections (tabs) ----------------------- */
.tool-section { display: none; animation: gsFade .4s ease; }
.tool-section.active { display: block; }

@keyframes gsFade {
    from { opacity: 0; transform: translateY(10px); }
    to   { opacity: 1; transform: translateY(0); }
}

/* ----------------------- Cards ----------------------- */
.card {
    border: none;
    border-radius: var(--gs-card-radius);
    box-shadow: var(--gs-shadow);
    margin-bottom: 1.5rem;
    overflow: hidden;
}
.card-header {
    background: #fff;
    border-bottom: 2px solid #f1f3f9;
    padding: 1.1rem 1.4rem;
}
.card-header h3 {
    margin: 0;
    font-size: 1.15rem;
    font-weight: 700;
    color: var(--gs-dark);
}
.card-header h3 i { color: var(--gs-primary); margin-left: .4rem; }
.card-header p { margin: .25rem 0 0; color: var(--gs-muted); font-size: .88rem; }
.card-body { padding: 1.4rem; }

label { font-weight: 600; margin-bottom: .4rem; display: block; }

/* ----------------------- Inputs / outputs ----------------------- */
.code-input,
.output-area {
    font-family: 'Consolas', 'Courier New', monospace;
    font-size: .9rem;
    border-radius: 12px;
    direction: ltr;
    text-align: left;
}
.code-input { border: 2px solid #e5e7eb; }
.code-input:focus { border-color: var(--gs-primary); box-shadow: 0 0 0 .2rem rgba(102,126,234,.15); }

.output-area {
    background: #0f172a;
    color: #e2e8f0;
    padding: 1rem 1.2rem;
    min-height: 320px;
    max-height: 480px;
    overflow: auto;
    white-space: pre-wrap;
    word-break: break-word;
    margin: 0;
}

/* ----------------------- Tool controls ----------------------- */
.tool-controls {
    display: flex;
    flex-wrap: wrap;
    gap: .6rem;
}
.tool-controls .btn { border-radius: 50px; font-weight: 600; }

.result-info { margin-top: .35rem; }
.result-section { margin-top: 1rem; }

.status-message {
    margin-top: 1rem;
    padding: .8rem 1.1rem;
    border-radius: 12px;
    font-weight: 600;
    display: none;
}
.status-message.show { display: block; }
.status-message.success { background: #dcfce7; color: #166534; }
.status-message.error   { background: #fee2e2; color: #991b1b; }
.status-message.info    { background: #dbeafe; color: #1e40af; }

/* ----------------------- Hash generator ----------------------- */
.hash-results { display: grid; gap: .75rem; margin-top: 1rem; }
.hash-result {
    background: #f8fafc;
    border: 1px solid #e5e7eb;
    border-radius: 12px;
    padding: .8rem 1rem;
}
.hash-label { font-weight: 700; color: var(--gs-secondary); margin-bottom: .25rem; }
.hash-value {
    font-family: 'Consolas', monospace;
    font-size: .82rem;
    word-break: break-all;
    direction: ltr;
    text-align: left;
    color: var(--gs-dark);
}

/* ----------------------- Regex ----------------------- */
.regex-flags { display: flex; flex-wrap: wrap; gap: 1rem; margin: .75rem 0; }
.regex-results {
    background: #f8fafc;
    border: 1px solid #e5e7eb;
    border-radius: 12px;
    padding: 1rem;
    margin-top: 1rem;
    min-height: 120px;
}

/* ----------------------- Compression stats ----------------------- */
.compression-stats {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
    gap: 1rem;
    margin-top: 1rem;
}
.stat-box {
    background: var(--gs-gradient);
    color: #fff;
    border-radius: 14px;
    padding: 1.1rem;
    text-align: center;
}
.stat-box .stat-number { font-size: 1.5rem; }

/* ----------------------- Footer ----------------------- */
.footer {
    background: var(--gs-dark);
    color: #cbd5e1;
    padding: 2.5rem 0 1.5rem;
    margin-top: 3rem;
}
.footer a { color: #cbd5e1; text-decoration: none; transition: var(--gs-transition); }
.footer a:hover { color: #fff; }

/* ----------------------- Responsive ----------------------- */
@media (max-width: 768px) {
    .header { padding: 2rem 0 2.5rem; text-align: center; }
    .header-stats { justify-content: center; margin-top: 1.25rem; }
    .nav-buttons { gap: .45rem; }
    .nav-btn { padding: .55rem .9rem; font-size: .82rem; }
    .output-area { min-height: 220px; }
}