.converter-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 10px;
}

.converter-card {
    background: var(--surf, #ffffff);
    backdrop-filter: blur(10px);
    border-radius: 32px;
    box-shadow: var(--sh-md, 0 8px 32px rgba(0,0,0,.10));
    border: 1px solid var(--brd, #e9eef3);
    overflow: hidden;
}

.converter-header {
    background: linear-gradient(135deg, #2c7be5 0%, #0ea5e9 100%);
    padding: 26px 24px;
    color: #fff;
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 12px;
    text-align: center;
}
.converter-header i { font-size: 1.6rem; opacity: .9; }
.converter-header h1 {
    font-size: clamp(1.2rem, 4vw, 1.55rem);
    font-weight: 800;
    margin: 0;
    line-height: 1.3;
}

/* Tabs Navigation */
.converter-tabs {
    display: flex;
    flex-wrap: wrap;
    background: var(--nav-soft, #f8fafc);
    border-bottom: 1px solid var(--brd, #e9eef3);
    padding: 8px 8px 0;
    gap: 4px;
}

.tab-btn {
    background: rgba(0, 0, 0, 0.02);
    border: 1px solid var(--brd, #e9eef3);
    border-bottom: none;
    padding: 12px 20px;
    font-family: inherit;
    font-size: 0.9rem;
    font-weight: 700;
    color: var(--txt-2, #64748b);
    cursor: pointer;
    border-radius: 12px 12px 0 0;
    transition: all 0.2s ease;
    display: flex;
    align-items: center;
    gap: 8px;
    margin-bottom: -1px;
}

.tab-btn:hover {
    color: var(--c-primary, #2c7be5);
    background: rgba(44, 123, 229, 0.06);
    border-color: var(--c-primary, #2c7be5);
}

.tab-btn.active {
    color: var(--c-primary, #2c7be5);
    background: var(--surf, #ffffff);
    border: 1px solid var(--brd, #e9eef3);
    border-bottom: 1px solid var(--surf, #ffffff);
    margin-bottom: -1px;
}

/* Tab Panels */
.tab-panel {
    display: none;
    padding: 30px 24px;
}

.tab-panel.active {
    display: block;
}

/* Form Styles */
.converter-form-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 20px;
    margin-bottom: 24px;
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.form-group label {
    font-size: 0.88rem;
    font-weight: 700;
    color: var(--txt, #0f172a);
}

.form-input, .form-select {
    padding: 12px 16px;
    border-radius: 12px;
    border: 1px solid var(--brd, #e9eef3);
    background: var(--surf, #ffffff);
    color: var(--txt, #0f172a);
    font-family: inherit;
    font-size: 0.95rem;
    outline: none;
    transition: border-color 0.2s ease;
    width: 100%;
    box-sizing: border-box;
}

.form-input:focus, .form-select:focus {
    border-color: var(--c-primary, #2c7be5);
}

/* Result Section */
.result-card {
    background: rgba(44, 123, 229, 0.06);
    border: 1px dashed var(--c-primary, #2c7be5);
    border-radius: 20px;
    padding: 20px 24px;
    text-align: center;
    box-sizing: border-box;
}

.result-card h3 {
    margin: 0 0 8px;
    font-size: 0.9rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--c-primary, #2c7be5);
}

.result-value {
    font-size: 1.8rem;
    font-weight: 800;
    color: var(--txt, #0f172a);
    word-break: break-all;
}

/* Info Panels */
.converter-info-section {
    width: 100%;
    margin: 30px 0 0;
    padding: 0;
}

.converter-info-panel {
    background: var(--surf,#fff);
    border: 1px solid var(--brd,#e9eef3);
    border-radius: 18px;
    padding: 24px;
    margin-bottom: 18px;
}

.converter-info-panel h2 {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 1.15rem;
    font-weight: 700;
    margin-bottom: 16px;
    color: var(--c-primary,#2c7be5);
}

.converter-info-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 20px;
}

.info-card {
    background: var(--nav-soft, #f8fafc);
    border: 1px solid var(--brd, #e9eef3);
    border-radius: 14px;
    padding: 16px 20px;
}

.info-card h3 {
    margin: 0 0 10px;
    font-size: 1rem;
    font-weight: 700;
    color: var(--txt, #0f172a);
    display: flex;
    align-items: center;
    gap: 8px;
}

.info-card p {
    margin: 0;
    font-size: 0.88rem;
    line-height: 1.6;
    color: var(--txt-2, #64748b);
    white-space: pre-line;
}

/* Dark Mode Overrides */
[data-theme="dark"] .converter-card {
    background: var(--surf, #111f3a);
    border-color: var(--brd, rgba(255,255,255,.07));
}
[data-theme="dark"] .converter-header {
    background: linear-gradient(135deg, #1e3a5f, #0c2d4a);
}
[data-theme="dark"] .converter-tabs {
    background: rgba(0,0,0,0.2);
    border-bottom-color: rgba(255,255,255,.07);
}
[data-theme="dark"] .tab-btn {
    background: rgba(255, 255, 255, 0.02);
    border-color: rgba(255, 255, 255, 0.07);
}
[data-theme="dark"] .tab-btn:hover {
    background: rgba(44, 123, 229, 0.1);
    border-color: var(--c-primary, #2c7be5);
}
[data-theme="dark"] .tab-btn.active {
    background: var(--surf, #111f3a);
    border-color: rgba(255,255,255,.07);
    border-bottom-color: var(--surf, #111f3a);
}
[data-theme="dark"] .form-input, 
[data-theme="dark"] .form-select {
    background: rgba(0,0,0,0.2);
    border-color: rgba(255,255,255,.1);
}
[data-theme="dark"] .result-card {
    background: rgba(44, 123, 229, 0.12);
}
[data-theme="dark"] .result-value {
    color: #fff;
}
[data-theme="dark"] .converter-info-panel {
    background: var(--surf,#111f3a);
    border-color: rgba(255,255,255,.07);
}
[data-theme="dark"] .info-card {
    background: rgba(0,0,0,0.15);
    border-color: rgba(255,255,255,.05);
}
[data-theme="dark"] .info-card h3 {
    color: #fff;
}

/* RTL Support */
html[dir="rtl"] .tab-btn {
    border-radius: 12px 12px 0 0;
}
html[dir="rtl"] .tab-btn.active {
    border-bottom-color: var(--surf);
}