/* Ferramentas Gratuitas - WCL Informática */
:root {
    --bg-dark: #040814;
    --bg-card: #0a0f26;
    --bg-card-hover: #101736;
    --color-primary: #00d2ff;
    --color-secondary: #8a2be2;
    --color-pink: #ff007f;
    --text-white: #ffffff;
    --text-muted: #8fa0dd;
    --text-gray: #a0aec0;
    --border-color: rgba(255, 255, 255, 0.08);
    --border-glow: rgba(0, 210, 255, 0.2);
    --font-heading: 'Outfit', sans-serif;
    --font-body: 'Inter', sans-serif;
    --shadow-neon-blue: 0 0 15px rgba(0, 210, 255, 0.4);
    --border-radius-md: 16px;
    --border-radius-sm: 8px;
    --transition-smooth: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

/* ── TOOLS PAGE LAYOUT ─────────────────────────────────── */
.tools-page {
    min-height: 100vh;
    background: var(--bg-dark);
    color: var(--text-white);
    font-family: var(--font-body);
}

.tools-header {
    border-bottom: 1px solid var(--border-color);
    background: var(--bg-dark);
    position: sticky;
    top: 0;
    z-index: 100;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 12px 24px;
    max-width: 1200px;
    margin: 0 auto;
    width: 100%;
}

.tools-header .logo-link {
    display: flex;
    align-items: center;
    gap: 10px;
    color: var(--text-white);
    text-decoration: none;
}

.tools-header .logo-link img {
    height: 32px;
    filter: drop-shadow(0 0 5px rgba(0, 210, 255, 0.8));
}

.tools-header .logo-link .logo-text {
    font-family: var(--font-heading);
    font-size: 20px;
    font-weight: 800;
}

.tools-header .logo-link .logo-text span {
    color: var(--color-primary);
    font-size: 10px;
    display: block;
    letter-spacing: 2px;
}

.tools-header .back-link {
    color: var(--text-gray);
    text-decoration: none;
    font-size: 13px;
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 6px 14px;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    transition: var(--transition-smooth);
}

.tools-header .back-link:hover {
    border-color: var(--color-primary);
    color: var(--color-primary);
}

/* ── TOOLS HERO ────────────────────────────────────────── */
.tools-hero {
    text-align: center;
    padding: 60px 24px 40px;
    max-width: 1000px;
    margin: 0 auto;
}

.tools-hero h1 {
    font-family: var(--font-heading);
    font-size: 36px;
    font-weight: 800;
    margin-bottom: 10px;
}

.tools-hero h1 span {
    background: linear-gradient(135deg, var(--color-primary), var(--color-secondary));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.tools-hero p {
    color: var(--text-gray);
    font-size: 16px;
    max-width: 600px;
    margin: 0 auto;
}

/* ── TOOLS GRID ────────────────────────────────────────── */
.tools-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px 60px;
}

.tool-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-md);
    padding: 28px 24px;
    cursor: pointer;
    transition: var(--transition-smooth);
    text-align: center;
    text-decoration: none;
    color: var(--text-white);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 12px;
}

.tool-card:hover {
    background: var(--bg-card-hover);
    border-color: rgba(0, 210, 255, 0.25);
    transform: translateY(-4px);
    box-shadow: 0 10px 30px rgba(0,0,0,0.4), 0 0 20px rgba(0,210,255,0.05);
}

.tool-card .tool-icon {
    width: 56px;
    height: 56px;
    border-radius: 14px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 24px;
    background: rgba(0, 210, 255, 0.08);
    color: var(--color-primary);
    transition: var(--transition-smooth);
}

.tool-card:hover .tool-icon {
    background: rgba(0, 210, 255, 0.15);
    box-shadow: 0 0 20px rgba(0, 210, 255, 0.1);
}

.tool-card .tool-name {
    font-family: var(--font-heading);
    font-size: 17px;
    font-weight: 700;
}

.tool-card .tool-desc {
    color: var(--text-gray);
    font-size: 13px;
    line-height: 1.5;
}

/* ── TOOL VIEW (single tool UI) ────────────────────────── */
.tool-view {
    display: none;
    max-width: 900px;
    margin: 0 auto;
    padding: 40px 24px 80px;
}

.tool-view.active {
    display: block;
}

.tool-view-header {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 30px;
}

.tool-view-header .tool-back {
    background: none;
    border: 1px solid var(--border-color);
    color: var(--text-gray);
    width: 38px;
    height: 38px;
    border-radius: 10px;
    cursor: pointer;
    font-size: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition-smooth);
    flex-shrink: 0;
}

.tool-view-header .tool-back:hover {
    border-color: var(--color-primary);
    color: var(--color-primary);
}

.tool-view-header h2 {
    font-family: var(--font-heading);
    font-size: 24px;
    font-weight: 700;
}

.tool-view-header h2 span {
    color: var(--color-primary);
}

/* ── TOOL CARD CONTAINER INSIDE TOOL VIEW ─────────────── */
.tool-box {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-md);
    padding: 32px;
    margin-bottom: 20px;
}

.tool-box h3 {
    font-family: var(--font-heading);
    font-size: 18px;
    font-weight: 700;
    margin-bottom: 20px;
}

/* ── SPEED TEST ────────────────────────────────────────── */
.speed-test-display {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 16px;
    margin-bottom: 24px;
}

.speed-test-item {
    background: rgba(255,255,255,0.02);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 20px;
    text-align: center;
}

.speed-test-item .speed-value {
    font-family: var(--font-heading);
    font-size: 28px;
    font-weight: 800;
    color: var(--color-primary);
}

.speed-test-item .speed-value.ping {
    color: var(--color-secondary);
}

.speed-test-item .speed-label {
    font-size: 12px;
    color: var(--text-gray);
    margin-top: 4px;
    text-transform: uppercase;
    letter-spacing: 1px;
}
.speed-test-item .speed-label .ping-server {
    display: block;
    font-size: 10px;
    color: var(--text-muted);
    text-transform: none;
    letter-spacing: 0;
    margin-top: 2px;
}

.speed-progress-bar {
    height: 6px;
    background: rgba(255,255,255,0.05);
    border-radius: 3px;
    overflow: hidden;
    margin-bottom: 20px;
}

.speed-progress-bar .speed-progress-fill {
    height: 100%;
    width: 0%;
    background: linear-gradient(90deg, var(--color-primary), var(--color-secondary));
    border-radius: 3px;
    transition: width 0.3s;
}

.speed-status {
    text-align: center;
    font-size: 14px;
    color: var(--text-gray);
    margin-bottom: 20px;
    min-height: 20px;
}

.btn-speed-test {
    display: block;
    margin: 0 auto;
    background: linear-gradient(135deg, var(--color-primary), var(--color-secondary));
    color: var(--text-white);
    border: none;
    padding: 14px 40px;
    border-radius: 12px;
    font-family: var(--font-heading);
    font-size: 16px;
    font-weight: 700;
    cursor: pointer;
    transition: var(--transition-smooth);
}

.btn-speed-test:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-neon-blue);
}

.btn-speed-test:disabled {
    opacity: 0.5;
    cursor: not-allowed;
    transform: none;
    box-shadow: none;
}

/* ── TOOL DISCLAIMER ────────────────────────────────────── */
.tool-disclaimer {
    font-size: 12px;
    color: var(--text-muted);
    text-align: center;
    margin-top: 16px;
    line-height: 1.5;
}
.tool-disclaimer a {
    color: var(--color-primary);
    text-decoration: none;
}
.tool-disclaimer a:hover {
    text-decoration: underline;
}

/* ── PASSWORD GENERATOR ────────────────────────────────── */
.pw-display {
    background: rgba(255,255,255,0.03);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 16px 20px;
    margin-bottom: 20px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
}

.pw-display .pw-text {
    font-family: 'Courier New', monospace;
    font-size: 22px;
    color: var(--color-primary);
    word-break: break-all;
    flex: 1;
}

.pw-display .pw-copy {
    background: rgba(255,255,255,0.05);
    border: 1px solid var(--border-color);
    color: var(--text-gray);
    width: 40px;
    height: 40px;
    border-radius: 10px;
    cursor: pointer;
    font-size: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition-smooth);
    flex-shrink: 0;
}

.pw-display .pw-copy:hover {
    color: var(--color-primary);
    border-color: var(--color-primary);
}

.pw-options {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 12px;
    margin-bottom: 20px;
}

.pw-option {
    display: flex;
    align-items: center;
    gap: 10px;
}

.pw-option label {
    font-size: 14px;
    color: var(--text-gray);
    cursor: pointer;
}

.pw-option input[type="checkbox"] {
    accent-color: var(--color-primary);
    width: 16px;
    height: 16px;
}

.pw-option input[type="range"] {
    flex: 1;
    accent-color: var(--color-primary);
    max-width: 120px;
}

.pw-option .pw-length-value {
    font-size: 14px;
    color: var(--color-primary);
    font-weight: 700;
    min-width: 24px;
    text-align: right;
}

.pw-strength {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 20px;
}

.pw-strength-bar {
    height: 4px;
    flex: 1;
    background: rgba(255,255,255,0.05);
    border-radius: 2px;
    overflow: hidden;
}

.pw-strength-bar .pw-strength-fill {
    height: 100%;
    border-radius: 2px;
    transition: width 0.3s, background 0.3s;
}

.pw-strength-label {
    font-size: 12px;
    font-weight: 600;
    min-width: 60px;
    text-align: right;
}

.btn-generate-pw {
    background: linear-gradient(135deg, var(--color-primary), var(--color-secondary));
    color: var(--text-white);
    border: none;
    padding: 12px 32px;
    border-radius: 12px;
    font-family: var(--font-heading);
    font-size: 15px;
    font-weight: 700;
    cursor: pointer;
    transition: var(--transition-smooth);
}

.btn-generate-pw:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-neon-blue);
}

/* ── IP CHECKER ────────────────────────────────────────── */
.ip-info {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 12px;
}

.ip-info-item {
    background: rgba(255,255,255,0.02);
    border: 1px solid var(--border-color);
    border-radius: 10px;
    padding: 14px 18px;
}

.ip-info-item .ip-label {
    font-size: 11px;
    color: var(--text-gray);
    text-transform: uppercase;
    letter-spacing: 1px;
    display: block;
    margin-bottom: 4px;
}

.ip-info-item .ip-value {
    font-size: 15px;
    font-weight: 600;
    color: var(--color-primary);
    word-break: break-all;
}

.ip-status {
    text-align: center;
    padding: 20px;
    color: var(--text-gray);
}

.ip-status i {
    font-size: 32px;
    margin-bottom: 10px;
    display: block;
    color: var(--color-secondary);
}

.ip-status.loading i {
    animation: spin 1s linear infinite;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

.ip-refresh {
    background: none;
    border: 1px solid var(--border-color);
    color: var(--text-gray);
    padding: 8px 18px;
    border-radius: 8px;
    cursor: pointer;
    font-size: 13px;
    transition: var(--transition-smooth);
    margin-top: 16px;
}

.ip-refresh:hover {
    border-color: var(--color-primary);
    color: var(--color-primary);
}

/* ── IMAGE CONVERTER ───────────────────────────────────── */
.img-converter-upload {
    border: 2px dashed var(--border-color);
    border-radius: 12px;
    padding: 40px;
    text-align: center;
    cursor: pointer;
    transition: var(--transition-smooth);
    margin-bottom: 20px;
}

.img-converter-upload:hover {
    border-color: var(--color-primary);
    background: rgba(0,210,255,0.03);
}

.img-converter-upload i {
    font-size: 40px;
    color: var(--color-primary);
    margin-bottom: 12px;
    display: block;
}

.img-converter-upload p {
    color: var(--text-gray);
    font-size: 14px;
}

.img-converter-upload .upload-hint {
    font-size: 11px;
    color: var(--text-muted);
    margin-top: 6px;
}

.img-converter-preview {
    display: none;
    margin-bottom: 20px;
}

.img-converter-preview.show {
    display: block;
}

.img-converter-preview img {
    max-width: 100%;
    max-height: 300px;
    border-radius: 10px;
    display: block;
    margin: 0 auto 16px;
}

.img-converter-formats {
    display: flex;
    gap: 10px;
    justify-content: center;
    flex-wrap: wrap;
    margin-bottom: 20px;
}

.img-converter-formats button {
    background: rgba(255,255,255,0.03);
    border: 1px solid var(--border-color);
    color: var(--text-gray);
    padding: 10px 20px;
    border-radius: 10px;
    cursor: pointer;
    font-size: 14px;
    font-weight: 600;
    transition: var(--transition-smooth);
}

.img-converter-formats button:hover {
    border-color: var(--color-primary);
    color: var(--color-primary);
}

.img-converter-formats button.active {
    border-color: var(--color-primary);
    background: rgba(0,210,255,0.1);
    color: var(--color-primary);
}

.btn-convert-img {
    background: linear-gradient(135deg, var(--color-primary), var(--color-secondary));
    color: var(--text-white);
    border: none;
    padding: 12px 32px;
    border-radius: 12px;
    font-family: var(--font-heading);
    font-size: 15px;
    font-weight: 700;
    cursor: pointer;
    transition: var(--transition-smooth);
    display: block;
    margin: 0 auto;
}

.btn-convert-img:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-neon-blue);
}

.btn-convert-img:disabled {
    opacity: 0.5;
    cursor: not-allowed;
    transform: none;
    box-shadow: none;
}

/* ── BATTERY HEALTH ────────────────────────────────────── */
.battery-form {
    display: grid;
    gap: 16px;
    max-width: 400px;
    margin-bottom: 24px;
}

.battery-form .battery-field label {
    display: block;
    font-size: 13px;
    color: var(--text-gray);
    margin-bottom: 6px;
}

.battery-form .battery-field input {
    width: 100%;
    padding: 10px 14px;
    background: rgba(255,255,255,0.03);
    border: 1px solid var(--border-color);
    border-radius: 10px;
    color: var(--text-white);
    font-size: 15px;
    outline: none;
    transition: var(--transition-smooth);
    font-family: var(--font-body);
}

.battery-form .battery-field input:focus {
    border-color: var(--color-primary);
    box-shadow: 0 0 10px rgba(0,210,255,0.1);
}

.battery-result {
    display: none;
    text-align: center;
    padding: 20px;
    border-radius: 12px;
    border: 1px solid var(--border-color);
    background: rgba(255,255,255,0.02);
    margin-bottom: 20px;
}

.battery-result.show {
    display: block;
}

.battery-result .battery-pct {
    font-family: var(--font-heading);
    font-size: 48px;
    font-weight: 800;
    color: var(--color-primary);
}

.battery-result .battery-status-text {
    font-size: 14px;
    color: var(--text-gray);
    margin-top: 6px;
}

.btn-battery-calc {
    background: linear-gradient(135deg, var(--color-primary), var(--color-secondary));
    color: var(--text-white);
    border: none;
    padding: 12px 32px;
    border-radius: 12px;
    font-family: var(--font-heading);
    font-size: 15px;
    font-weight: 700;
    cursor: pointer;
    transition: var(--transition-smooth);
}

.btn-battery-calc:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-neon-blue);
}

.battery-guide {
    background: rgba(255,255,255,0.02);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 20px 24px;
}

.battery-guide h4 {
    font-family: var(--font-heading);
    color: var(--color-primary);
    margin-bottom: 8px;
}

.battery-guide p, .battery-guide li {
    font-size: 13px;
    color: var(--text-gray);
    line-height: 1.7;
}

.battery-guide ul {
    padding-left: 20px;
    margin: 8px 0;
}

/* ── PC POWER CALCULATOR ──────────────────────────────── */
.pc-calc-form {
    display: grid;
    gap: 14px;
    margin-bottom: 24px;
}

.pc-calc-form .pc-field label {
    display: block;
    font-size: 13px;
    color: var(--text-gray);
    margin-bottom: 6px;
}

.pc-calc-form .pc-field select,
.pc-calc-form .pc-field input {
    width: 100%;
    padding: 10px 14px;
    background: rgba(255,255,255,0.03);
    border: 1px solid var(--border-color);
    border-radius: 10px;
    color: var(--text-white);
    font-size: 14px;
    outline: none;
    transition: var(--transition-smooth);
    font-family: var(--font-body);
}

.pc-calc-form .pc-field select option {
    background: var(--bg-dark);
    color: var(--text-white);
}

.pc-calc-form .pc-field select:focus,
.pc-calc-form .pc-field input:focus {
    border-color: var(--color-primary);
    box-shadow: 0 0 10px rgba(0,210,255,0.1);
}

.pc-result {
    display: none;
    background: rgba(255,255,255,0.02);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 20px;
    margin-bottom: 20px;
}

.pc-result.show {
    display: block;
}

.pc-result-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 12px;
}

.pc-result-item {
    text-align: center;
    padding: 14px;
    background: rgba(255,255,255,0.02);
    border-radius: 10px;
}

.pc-result-item .pc-result-value {
    font-family: var(--font-heading);
    font-size: 22px;
    font-weight: 800;
    color: var(--color-primary);
}

.pc-result-item .pc-result-label {
    font-size: 11px;
    color: var(--text-gray);
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-top: 4px;
}

.btn-pc-calc {
    background: linear-gradient(135deg, var(--color-primary), var(--color-secondary));
    color: var(--text-white);
    border: none;
    padding: 12px 32px;
    border-radius: 12px;
    font-family: var(--font-heading);
    font-size: 15px;
    font-weight: 700;
    cursor: pointer;
    transition: var(--transition-smooth);
    display: block;
    margin: 0 auto;
}

.btn-pc-calc:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-neon-blue);
}

/* ── RESPONSIVE ────────────────────────────────────────── */
@media (max-width: 900px) {
    .tools-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 600px) {
    .tools-grid {
        grid-template-columns: 1fr;
    }
    .tools-hero h1 {
        font-size: 26px;
    }
    .speed-test-display {
        grid-template-columns: 1fr;
    }
    .pw-options {
        grid-template-columns: 1fr;
    }
    .ip-info {
        grid-template-columns: 1fr;
    }
    .pc-result-grid {
        grid-template-columns: 1fr;
    }
    .tools-header {
        padding: 10px 16px;
    }
    .tools-header .logo-text {
        font-size: 16px;
    }
    .tool-box {
        padding: 20px;
    }
    .tool-view-header h2 {
        font-size: 20px;
    }
}

@media (max-width: 480px) {
    .tools-hero h1 {
        font-size: 22px;
    }
    .tool-card {
        padding: 20px 16px;
    }
}