/* Resolution & Aspect Studio Styles */

.app-body { 
    background: var(--background); 
}

.ar-container {
    padding: 160px 5% 80px;
    max-width: 1200px;
    margin: 0 auto;
    min-height: calc(100vh - 150px);
}

.ar-header { text-align: center; margin-bottom: 40px; }

.page-title {
    font-size: 3.5rem;
    font-weight: 800;
    letter-spacing: -2px;
    margin-bottom: 16px;
    color: var(--on-surface);
}

/* Tabs */
.ce-tabs {
    display: flex;
    justify-content: center;
    gap: 12px;
    margin-bottom: 48px;
    flex-wrap: wrap;
}

.ce-tab {
    padding: 12px 28px;
    background: var(--surface-container-low);
    border: 1px solid var(--outline-variant);
    color: var(--on-surface-variant);
    border-radius: 100px;
    cursor: pointer;
    font-family: 'Manrope';
    font-weight: 700;
    transition: all 0.3s cubic-bezier(0.2, 0.8, 0.2, 1);
}

.ce-tab.active {
    background: linear-gradient(135deg, var(--primary), var(--primary-container));
    color: var(--on-primary);
    border-color: transparent;
    box-shadow: 0 10px 20px rgba(0, 37, 66, 0.1);
}

.ce-tab:hover:not(.active) {
    background: var(--surface-container-high);
    transform: translateY(-2px);
}

.ce-tab-content { display: none; }
.ce-tab-content.active { display: block; animation: fadeIn 0.4s ease-out; }

/* Cards & Grid */
.ar-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
    gap: 32px;
}

.ar-card {
    background: var(--surface-container-lowest);
    border-radius: 32px;
    padding: 40px;
    box-shadow: 0 4px 30px rgba(0, 37, 66, 0.03);
    display: flex;
    flex-direction: column;
    transition: transform 0.3s ease;
}

.ar-card:hover {
    transform: translateY(-4px);
}

.ar-card h3 { 
    font-size: 1.8rem; 
    margin-bottom: 12px; 
    color: var(--on-surface);
    font-weight: 800;
    letter-spacing: -0.5px;
}

.ar-desc { 
    color: var(--on-surface-variant); 
    font-size: 1rem; 
    margin-bottom: 32px; 
}

/* Inputs */
.input-row { display: flex; align-items: flex-end; gap: 20px; margin-bottom: 24px; }
.small-row { max-width: 320px; margin-bottom: 0; }
.input-group { flex: 1; display: flex; flex-direction: column; gap: 10px; }
.input-group label { 
    font-size: 0.8rem; 
    color: var(--primary); 
    font-weight: 800; 
    text-transform: uppercase; 
    letter-spacing: 1px; 
}

.input-group input, .ce-select {
    width: 100%;
    padding: 16px 20px;
    border-radius: 16px;
    border: 2px solid var(--surface-container-low);
    background: var(--surface-container-low);
    color: var(--on-surface);
    font-size: 1.1rem;
    font-family: 'Manrope';
    outline: none;
    transition: all 0.3s;
}

.input-group input:focus { 
    border-color: var(--primary); 
    background: var(--surface-container-lowest);
    box-shadow: 0 0 0 4px rgba(0, 37, 66, 0.05); 
}

.ce-select { 
    cursor: pointer; 
    -webkit-appearance: none; 
    appearance: none; 
    background: var(--surface-container-low) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='24' height='24' viewBox='0 0 24 24' fill='none' stroke='%230b1c30' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='6 9 12 15 18 9'%3E%3C/polyline%3E%3C/svg%3E") no-repeat right 16px center; 
}

.ar-divider { font-size: 1.5rem; color: var(--on-surface-variant); padding-bottom: 12px; font-weight: 300; }
.ar-divider-line { height: 1px; background: var(--outline-variant); margin: 32px 0; }
.ar-mini-label { font-size: 0.85rem; color: var(--on-surface-variant); margin-bottom: 12px; text-transform: uppercase; font-weight: 700; }

/* Result Box */
.result-box {
    margin-top: auto;
    padding: 24px;
    background: var(--surface-container-low);
    border-radius: 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}
.result-label { font-size: 1rem; color: var(--on-surface-variant); font-weight: 600; }
.result-value { font-size: 2.2rem; font-weight: 800; color: var(--primary); }

/* Presets Studio */
.presets-studio-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 32px;
}

.presets-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(130px, 1fr));
    gap: 12px;
}

.preset-btn {
    background: var(--surface-container-low);
    border: 1px solid var(--outline-variant);
    padding: 16px 12px;
    border-radius: 16px;
    cursor: pointer;
    transition: all 0.3s cubic-bezier(0.2, 0.8, 0.2, 1);
    text-align: center;
    color: var(--on-surface);
}

.preset-btn:hover {
    background: linear-gradient(135deg, var(--primary), var(--primary-container));
    color: var(--on-primary);
    transform: translateY(-4px);
    box-shadow: 0 10px 20px rgba(0, 37, 66, 0.1);
    border-color: transparent;
}

.preset-name { display: block; font-weight: 800; font-size: 0.95rem; margin-bottom: 4px; }
.preset-res { display: block; font-size: 0.8rem; opacity: 0.8; font-weight: 500; }

/* Responsive */
@media (max-width: 900px) {
    .ar-grid { grid-template-columns: 1fr; }
    .input-row { flex-direction: column; align-items: stretch; }
    .ar-divider { display: none; }
    .result-box { flex-direction: column; text-align: center; gap: 12px; }
    .page-title { font-size: 2.5rem; }
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(20px); }
    to { opacity: 1; transform: translateY(0); }
}