/* Password Generator Specific Styles */

:root {
    --bg-gradient: linear-gradient(135deg, #f8fafc 0%, #e2e8f0 100%);
    --surface: rgba(255, 255, 255, 0.88);
    --glass-border: rgba(255, 255, 255, 0.45);
    --text-main: #0f172a;
    --text-muted: #64748b;
    --primary: #4f46e5;
    --primary-glow: rgba(79, 70, 229, 0.22);
    --accent: #38bdf8;
    --success: #10b981;
    --danger: #ef4444;
    --card-shadow: 0 10px 30px -10px rgba(0, 0, 0, 0.1), 0 4px 6px -4px rgba(0, 0, 0, 0.05);
    --input-bg: #fff;
    --input-border: #cbd5e1;
    --focus-ring: rgba(79, 70, 229, 0.2);
}

body.dark-mode {
    --bg-gradient: linear-gradient(135deg, #0f172a 0%, #1e293b 100%);
    --surface: rgba(30, 41, 59, 0.82);
    --glass-border: rgba(255, 255, 255, 0.06);
    --text-main: #f8fafc;
    --text-muted: #94a3b8;
    --primary: #6366f1;
    --primary-glow: rgba(99, 102, 241, 0.22);
    --card-shadow: 0 15px 35px -5px rgba(0, 0, 0, 0.55);
    --input-bg: #0f172a;
    --input-border: #334155;
    --focus-ring: rgba(99, 102, 241, 0.25);
}

.page-hero {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: 32px;
    gap: 16px;
    flex-wrap: wrap;
}

.page-hero h1 {
    font-size: 2.3rem;
    font-weight: 800;
    letter-spacing: -0.03em;
    background: linear-gradient(135deg, var(--primary) 0%, var(--accent) 100%);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    line-height: 1.15;
}

.hero-sub {
    color: var(--text-muted);
    font-size: 0.97rem;
    margin-top: 6px;
    font-weight: 400;
}

.tools-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(280px, 1fr));
    gap: 24px;
    align-items: stretch;
}

@media (max-width: 950px) {
    .tools-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 650px) {
    .tools-grid { grid-template-columns: 1fr; }
}

.card {
    background: var(--surface);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border: 1px solid var(--glass-border);
    border-radius: 20px;
    padding: 28px;
    box-shadow: var(--card-shadow);
    display: flex;
    flex-direction: column;
    transition: box-shadow 0.3s, transform 0.2s ease;
}

.card:hover { transform: translateY(-3px); }

.card h2 {
    font-size: 1.3rem;
    font-weight: 700;
    margin-bottom: 20px;
    color: var(--primary);
    display: flex;
    align-items: center;
    gap: 8px;
}

label {
    display: block;
    font-weight: 600;
    font-size: 0.9rem;
    margin-bottom: 12px;
    color: var(--text-main);
    display: flex;
    align-items: center;
    cursor: pointer;
}

.input-group {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 12px;
}

.input-label-text {
    font-weight: 600;
    font-size: 0.9rem;
}

input[type="number"],
input[type="text"],
textarea {
    width: 100%;
    padding: 12px 14px;
    font-family: 'Inter', monospace;
    font-size: 0.95rem;
    color: var(--text-main);
    background: var(--input-bg);
    border: 2px solid var(--input-border);
    border-radius: 10px;
    transition: border-color 0.2s, box-shadow 0.2s;
}

input[type="number"] {
    width: 100px;
    padding: 8px 12px;
}

textarea {
    resize: vertical;
    min-height: 120px;
    margin-top: 10px;
    margin-bottom: 20px;
}

input:focus,
textarea:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 4px var(--focus-ring);
}

input[type="checkbox"] {
    appearance: none;
    width: 20px;
    height: 20px;
    border: 2px solid var(--input-border);
    border-radius: 6px;
    margin-right: 10px;
    display: grid;
    place-content: center;
    cursor: pointer;
    background: var(--input-bg);
    transition: 0.2s;
}

input[type="checkbox"]::before {
    content: "";
    width: 10px;
    height: 10px;
    transform: scale(0);
    transition: 120ms transform ease-in-out;
    box-shadow: inset 1em 1em white;
    background-color: transparent;
    transform-origin: center;
    clip-path: polygon(14% 44%, 0 65%, 50% 100%, 100% 16%, 80% 0%, 43% 62%);
}

input[type="checkbox"]:checked {
    background: var(--primary);
    border-color: var(--primary);
}

input[type="checkbox"]:checked::before { transform: scale(1); }

.btns {
    display: flex;
    gap: 12px;
    margin-top: auto;
}

.btn {
    flex: 1;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
    padding: 12px 16px;
    border: none;
    border-radius: 10px;
    font-size: 0.92rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s;
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary) 0%, #3b82f6 100%);
    color: #fff;
    box-shadow: 0 4px 12px var(--primary-glow);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 16px var(--primary-glow);
}

.btn-secondary {
    background: var(--surface);
    color: var(--text-main);
    border: 1px solid var(--input-border);
}

.btn-secondary:hover {
    border-color: var(--primary);
    color: var(--primary);
}

.copy-btn-copied {
    background: var(--success) !important;
    color: white !important;
    border-color: var(--success) !important;
}

.tool-article.content-upgrade {
    margin-top: 3rem;
}