/* IP Subnet Calculator Specific Styles */


body {
    font-family: 'Courier New', Courier, monospace;
    background-color: var(--bg);
    color: var(--text);
    line-height: 1.7;
    margin: 0;
    padding: 0;
    transition: background-color 0.3s, color 0.3s;
}

.container {
    max-width: 1100px;
    margin: 0 auto;
    padding: 48px 28px;
}

header {
    border-bottom: 5px solid var(--border);
    padding-bottom: 28px;
    margin-bottom: 40px;
    position: relative;
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    flex-wrap: wrap;
    gap: 20px;
}

.header-main {
    flex: 1;
    min-width: 280px;
}

h1 {
    font-size: 2.4rem;
    text-transform: uppercase;
    margin: 0 0 12px;
    letter-spacing: 0.04em;
}

header p {
    margin: 0;
    opacity: 0.8;
    font-size: 1rem;
}

/* Base Card Styling */
.card {
    border: 3px solid var(--border);
    padding: 24px;
    margin-bottom: 24px;
    background: var(--card-bg);
    box-shadow: 6px 6px 0px var(--border);
    transition: transform 0.2s, box-shadow 0.2s;
}

.card-title {
    margin-top: 0;
    margin-bottom: 20px;
    font-size: 1.3rem;
    text-transform: uppercase;
    border-bottom: 3px solid var(--border);
    padding-bottom: 8px;
    display: flex;
    align-items: center;
    gap: 8px;
}

/* Calculator Grid Layout */
.calculator-layout {
    display: grid;
    grid-template-columns: 380px 1fr;
    gap: 32px;
    align-items: start;
}

/* Form Controls */
.form-group {
    margin-bottom: 20px;
}

.form-label {
    display: block;
    font-weight: 900;
    text-transform: uppercase;
    margin-bottom: 8px;
    font-size: 0.9rem;
}

input[type="text"],
input[type="number"] {
    width: 100%;
    padding: 12px;
    font-family: inherit;
    font-size: 1.1rem;
    border: 3px solid var(--border);
    background: transparent;
    color: inherit;
    box-sizing: border-box;
    outline: none;
    transition: background-color 0.2s;
}

input[type="text"]:focus,
input[type="number"]:focus {
    background: var(--tag-bg);
}

.cidr-input-wrapper {
    display: flex;
    align-items: center;
    border: 3px solid var(--border);
}

.cidr-prefix-slash {
    font-weight: 900;
    font-size: 1.2rem;
    padding: 0 12px;
    background: var(--tag-bg);
    border-right: 3px solid var(--border);
    height: 100%;
    display: flex;
    align-items: center;
    user-select: none;
}

.cidr-input-wrapper input[type="number"] {
    border: none;
    flex-grow: 1;
}

/* Slider Custom Styling */
.slider-control {
    -webkit-appearance: none;
    appearance: none;
    width: 100%;
    height: 10px;
    border: 2px solid var(--border);
    background: var(--tag-bg);
    outline: none;
    margin: 12px 0;
}

.slider-control::-webkit-slider-thumb {
    -webkit-appearance: none;
    appearance: none;
    width: 20px;
    height: 20px;
    border: 2px solid var(--border);
    background: var(--text);
    cursor: pointer;
    transition: transform 0.1s;
}

.slider-control::-webkit-slider-thumb:active {
    transform: scale(1.2);
}

/* Quick presets buttons */
.presets-container {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(65px, 1fr));
    gap: 8px;
    margin-top: 8px;
}

.preset-btn {
    padding: 6px 4px;
    font-family: inherit;
    font-size: 0.75rem;
    font-weight: bold;
    border: 2px solid var(--border);
    background: var(--tag-bg);
    color: var(--text);
    cursor: pointer;
    transition: all 0.1s;
    text-align: center;
}

.preset-btn:hover {
    background: var(--text);
    color: var(--bg);
}

.preset-btn.active {
    background: var(--text);
    color: var(--bg);
}

/* Action Button */
.action-btn {
    width: 100%;
    padding: 14px;

    font-family: inherit;
    font-size: 1.1rem;
    font-weight: bold;
    background: var(--text);
    color: var(--bg);
    border: 3px solid var(--border);
    font-weight: 700;
    text-transform: uppercase;
    background: var(--bg);
    color: var(--text);
    border: 2px solid var(--border);
    cursor: pointer;
    font-weight: 700;
    text-transform: uppercase;

    background: var(--bg);
    color: var(--text);
    border: 2px solid var(--border);

    cursor: pointer;
    transition: all 0.2s ease;
    margin-top: 10px;
}

.action-btn:hover {
    background: var(--text);
    color: var(--bg);
    transform: translateY(-2px);
}

.action-btn:active {
    transform: translateY(0);
}

.action-btn:focus-visible {
    outline: 2px solid var(--text);
    outline-offset: 3px;
}

/* Errors */
.error-msg {
    color: #ff4d4d;
    font-size: 0.8rem;
    display: block;
    margin-top: 6px;
    min-height: 1.2em;
    font-weight: bold;
}

/* Results section */
.results-column {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.results-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 16px;
}

.result-item {
    border: 2px solid var(--border);
    padding: 12px;
    background: var(--tag-bg);
}

.result-label {
    display: block;
    font-size: 0.75rem;
    text-transform: uppercase;
    opacity: 0.7;
    font-weight: bold;
    margin-bottom: 4px;
}

.result-value-wrapper {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 8px;
}

.result-value {
    font-size: 1.1rem;
    font-weight: bold;
    word-break: break-all;
}

/* Copy Buttons */
.copy-btn {
    background: transparent;
    border: none;
    color: var(--text);
    cursor: pointer;
    padding: 4px;
    display: flex;
    align-items: center;
    justify-content: center;
    border: 1px solid transparent;
    transition: all 0.1s;
}

.copy-btn:hover {
    border-color: var(--border);
    background: var(--bg);
}

.copy-btn:active {
    transform: scale(0.9);
}

/* Metadata properties */
.meta-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 16px;
}

.meta-item {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.meta-item.full-width {
    grid-column: 1 / -1;
}

.meta-label {
    font-size: 0.75rem;
    text-transform: uppercase;
    opacity: 0.7;
    font-weight: bold;
}

.meta-value-badge {
    padding: 6px 12px;
    border: 2px solid var(--border);
    font-weight: bold;
    text-transform: uppercase;
    text-align: center;
    display: inline-block;
    width: fit-content;
}

.meta-value-text {
    font-size: 0.85rem;
}

/* Class Badges */
.class-a { background-color: #3b82f6; color: white; }
.class-b { background-color: #8b5cf6; color: white; }
.class-c { background-color: #ec4899; color: white; }
.class-d { background-color: #f59e0b; color: black; }
.class-e { background-color: #6b7280; color: white; }

/* Network type Badges */
.type-private { background-color: #10b981; color: white; }
.type-public { background-color: #6366f1; color: white; }
.type-loopback { background-color: #ef4444; color: white; }
.type-special { background-color: #14b8a6; color: white; }

/* Edge Case Explanation Card */
.edge-case-card {
    background-color: #fef3c7;
    color: #92400e;
    border-color: #f59e0b;
}

.edge-case-card .card-title {
    color: #92400e;
    border-bottom-color: #f59e0b;
}

.info-title svg {
    vertical-align: middle;
}

.edge-explanation-text {
    margin: 0;
    font-size: 0.9rem;
    line-height: 1.6;
}

/* Dark mode adjustments for Edge Case Card */
body.dark-mode .edge-case-card {
    background-color: #78350f;
    color: #fef3c7;
    border-color: #f59e0b;
}
body.dark-mode .edge-case-card .card-title {
    color: #fef3c7;
    border-bottom-color: #f59e0b;
}

/* Binary visualizer */
.binary-visualizer {
    display: flex;
    flex-direction: column;
    gap: 12px;
    font-family: inherit;
    background: var(--tag-bg);
    border: 2px solid var(--border);
    padding: 16px;
    overflow-x: auto;
}

.binary-row {
    display: flex;
    align-items: center;
    gap: 16px;
    white-space: nowrap;
    min-width: 480px;
}

.binary-label {
    width: 150px;
    font-size: 0.8rem;
    text-transform: uppercase;
    font-weight: bold;
    opacity: 0.8;
}

.binary-octets {
    font-size: 1rem;
    font-weight: bold;
    letter-spacing: 0.05em;
}

.binary-octets span {
    padding: 2px 4px;
}

.mask-bits {
    background-color: rgba(34, 197, 94, 0.25);
    color: var(--subnet-color);
    border-bottom: 2px solid var(--subnet-color);
}

.host-bits {
    background-color: rgba(59, 130, 246, 0.25);
    color: var(--host-color);
    border-bottom: 2px solid var(--host-color);
}

.divider-row {
    height: 2px;
    background: var(--border);
    margin: 4px 0;
}

.binary-legend {
    display: flex;
    gap: 24px;
    margin-top: 12px;
    font-size: 0.8rem;
    font-weight: bold;
}

.legend-item {
    display: flex;
    align-items: center;
    gap: 8px;
}

.legend-box {
    width: 14px;
    height: 14px;
    display: inline-block;
    border: 1px solid var(--border);
}

/* Toast alert */
.toast {
    position: fixed;
    bottom: 24px;
    right: 24px;
    background: var(--text);
    color: var(--bg);
    border: 3px solid var(--border);
    padding: 12px 24px;
    font-weight: bold;
    text-transform: uppercase;
    box-shadow: 4px 4px 0px var(--border);
    z-index: 1000;
    transition: opacity 0.3s, transform 0.3s;
}

.hidden {
    display: none !important;
}

/* Footer link formatting */
/*Footer*/
      footer {
            margin-top: 60px;
            padding: 30px 20px;
            text-align: center;
            border-radius: 12px 12px 0 0;
        }

        footer a {
            color: var(--text);
            text-decoration: none;
            font-weight: 900;
            border: 2px solid var(--border);
            padding: 8px 16px;
            display: inline-block;
            transition: all 0.2s ease;
        }

        footer a:hover {
            background: var(--text);
            color: var(--bg);
        }

/* Responsive adjustment */
@media (max-width: 900px) {
    .calculator-layout {
        grid-template-columns: 1fr;
    }
    .results-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 500px) {
    .container {
        padding: 24px 12px;
    }
    h1 {
        font-size: 1.8rem;
    }
    .binary-row {
        flex-direction: column;
        align-items: flex-start;
        gap: 4px;
        border-bottom: 1px dashed var(--border);
        padding-bottom: 8px;
    }
    .binary-row.divider-row {
        display: none;
    }
    .binary-label {
        width: auto;
    }
}