/* ==========================================
   PE Ratio Calculator - Main Styles
   ========================================== */

:root {
    --primary-color: #667eea;
    --secondary-color: #764ba2;
    --accent-color: #f093fb;
    --success-color: #10b981;
    --error-color: #ef4444;
    --warning-color: #f59e0b;
    --light-bg: #f8f9fa;
    --dark-text: #1f2937;
    --gray-text: #6b7280;
    --border-color: #e5e7eb;
    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 25px rgba(102, 126, 234, 0.15);
}

.pe-ratio-calculator-wrapper {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    padding: 30px 20px;
    border-radius: 0;
}

.pe-ratio-container {
    max-width: 1000px;
    margin: 0 auto;
    background: white;
    border-radius: 20px;
    box-shadow: var(--shadow-lg);
    overflow: hidden;
}

/* ==========================================
   Header
   ========================================== */

.pe-ratio-header {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    padding: 40px 30px;
    text-align: center;
}

.pe-ratio-header h1 {
    margin: 0 0 10px 0;
    font-size: 32px;
    font-weight: 700;
    letter-spacing: -0.5px;
}

.pe-ratio-header p {
    margin: 0;
    font-size: 16px;
    opacity: 0.95;
    font-weight: 400;
}

/* ==========================================
   Main Calculator Section
   ========================================== */

.pe-ratio-main {
    padding: 40px 30px;
}

/* ==========================================
   Tab Buttons
   ========================================== */

.pe-ratio-tab-buttons {
    display: flex;
    gap: 15px;
    margin-bottom: 30px;
    flex-wrap: wrap;
}

.pe-ratio-tab-btn {
    flex: 1;
    min-width: 150px;
    padding: 14px 20px;
    border: 2px solid var(--border-color);
    background: white;
    color: var(--dark-text);
    border-radius: 12px;
    cursor: pointer;
    font-size: 14px;
    font-weight: 600;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
}

.pe-ratio-tab-btn:hover {
    border-color: var(--primary-color);
    background: rgba(102, 126, 234, 0.05);
    transform: translateY(-2px);
}

.pe-ratio-tab-btn.active {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    border-color: transparent;
    box-shadow: var(--shadow-md);
}

.tab-icon {
    font-size: 18px;
}

/* ==========================================
   Currency Selector
   ========================================== */

.pe-ratio-currency-selector {
    margin-bottom: 30px;
    display: flex;
    gap: 12px;
    align-items: center;
    flex-wrap: wrap;
}

.pe-ratio-currency-selector label {
    font-weight: 600;
    color: var(--dark-text);
    white-space: nowrap;
}

.pe-ratio-select {
    flex: 1;
    min-width: 200px;
    padding: 12px 16px;
    border: 2px solid var(--border-color);
    border-radius: 10px;
    font-size: 14px;
    color: var(--dark-text);
    background: white;
    cursor: pointer;
    transition: all 0.3s ease;
}

.pe-ratio-select:hover {
    border-color: var(--primary-color);
}

.pe-ratio-select:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(102, 126, 234, 0.1);
}

/* ==========================================
   Form Styling
   ========================================== */

.pe-ratio-form {
    margin-bottom: 30px;
}

.pe-ratio-form-group {
    margin-bottom: 25px;
}

.pe-ratio-input-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
}

.pe-ratio-input-field {
    position: relative;
}

.pe-ratio-input-field label {
    display: block;
    margin-bottom: 10px;
    font-weight: 600;
    color: var(--dark-text);
    font-size: 14px;
}

.pe-ratio-input {
    width: 100%;
    padding: 14px 16px;
    border: 2px solid var(--border-color);
    border-radius: 10px;
    font-size: 15px;
    color: var(--dark-text);
    background: white;
    transition: all 0.3s ease;
    box-sizing: border-box;
}

.pe-ratio-input:hover {
    border-color: var(--primary-color);
    background: rgba(102, 126, 234, 0.02);
}

.pe-ratio-input:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(102, 126, 234, 0.1);
    background: white;
}

.pe-ratio-input::placeholder {
    color: var(--gray-text);
}

.pe-ratio-unit {
    position: absolute;
    right: 16px;
    top: 40px;
    font-size: 13px;
    color: var(--gray-text);
    font-weight: 500;
    pointer-events: none;
}

/* ==========================================
   Button Styling
   ========================================== */

.pe-ratio-button-group {
    display: flex;
    gap: 15px;
    margin-top: 30px;
}

.pe-ratio-btn {
    flex: 1;
    padding: 16px 24px;
    border: none;
    border-radius: 10px;
    font-size: 15px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.pe-ratio-btn-calculate {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    box-shadow: var(--shadow-md);
}

.pe-ratio-btn-calculate:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-lg);
}

.pe-ratio-btn-calculate:active {
    transform: translateY(-1px);
}

.pe-ratio-btn-reset {
    background: var(--light-bg);
    color: var(--dark-text);
    border: 2px solid var(--border-color);
}

.pe-ratio-btn-reset:hover {
    background: rgba(102, 126, 234, 0.1);
    border-color: var(--primary-color);
}

/* ==========================================
   Error Message
   ========================================== */

.pe-ratio-error {
    padding: 16px 20px;
    background: rgba(239, 68, 68, 0.1);
    border-left: 4px solid var(--error-color);
    border-radius: 8px;
    color: var(--error-color);
    font-weight: 500;
    margin-bottom: 20px;
    animation: slideDown 0.3s ease;
}

@keyframes slideDown {
    from {
        opacity: 0;
        transform: translateY(-10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* ==========================================
   Results Section
   ========================================== */

.pe-ratio-results {
    margin-top: 35px;
    padding-top: 35px;
    border-top: 2px solid var(--border-color);
    animation: slideUp 0.4s ease;
}

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

.pe-ratio-result-header {
    margin-bottom: 25px;
}

.pe-ratio-result-header h2 {
    margin: 0;
    font-size: 22px;
    color: var(--dark-text);
    font-weight: 700;
}

.pe-ratio-result-box {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    padding: 30px;
    border-radius: 15px;
    margin-bottom: 25px;
    text-align: center;
    box-shadow: var(--shadow-md);
}

.pe-ratio-result-label {
    font-size: 14px;
    color: rgba(255, 255, 255, 0.85);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: 12px;
}

.pe-ratio-result-value {
    font-size: 42px;
    color: white;
    font-weight: 700;
    margin: 0;
    word-break: break-word;
}

.pe-ratio-interpretation {
    background: rgba(16, 185, 129, 0.1);
    border-left: 4px solid var(--success-color);
    padding: 20px;
    border-radius: 8px;
    margin-bottom: 20px;
}

.pe-ratio-interpretation strong {
    color: var(--dark-text);
    display: block;
    margin-bottom: 8px;
    font-size: 14px;
}

.pe-ratio-interpretation p {
    margin: 0;
    color: var(--gray-text);
    line-height: 1.6;
    font-size: 15px;
}

.pe-ratio-calculation-show {
    background: var(--light-bg);
    padding: 20px;
    border-radius: 8px;
    border: 1px solid var(--border-color);
}

.pe-ratio-calculation-show strong {
    color: var(--dark-text);
    display: block;
    margin-bottom: 8px;
    font-size: 14px;
}

.pe-ratio-calculation-show p {
    margin: 0;
    color: var(--gray-text);
    font-size: 15px;
    line-height: 1.6;
    font-family: 'Monaco', 'Courier New', monospace;
}

/* ==========================================
   Info Section
   ========================================== */

.pe-ratio-info-section {
    background: var(--light-bg);
    padding: 35px 30px;
    border-top: 2px solid var(--border-color);
}

.pe-ratio-info-section h3 {
    margin: 0 0 15px 0;
    font-size: 18px;
    color: var(--dark-text);
    font-weight: 700;
}

.pe-ratio-info-section p {
    margin: 0 0 20px 0;
    color: var(--gray-text);
    line-height: 1.8;
    font-size: 15px;
}

.pe-ratio-info-section ul {
    margin: 0 0 20px 0;
    padding-left: 20px;
    list-style: none;
}

.pe-ratio-info-section li {
    margin-bottom: 12px;
    color: var(--gray-text);
    line-height: 1.7;
    font-size: 15px;
    padding-left: 8px;
    border-left: 3px solid var(--primary-color);
    padding-left: 16px;
}

.pe-ratio-info-section li strong {
    color: var(--dark-text);
}

/* ==========================================
   Mobile Responsive Design
   ========================================== */

@media (max-width: 768px) {
    .pe-ratio-calculator-wrapper {
        padding: 20px 15px;
    }

    .pe-ratio-container {
        border-radius: 15px;
    }

    .pe-ratio-header {
        padding: 30px 20px;
    }

    .pe-ratio-header h1 {
        font-size: 24px;
    }

    .pe-ratio-header p {
        font-size: 14px;
    }

    .pe-ratio-main {
        padding: 25px 20px;
    }

    .pe-ratio-tab-buttons {
        gap: 10px;
        margin-bottom: 25px;
    }

    .pe-ratio-tab-btn {
        min-width: 120px;
        padding: 12px 15px;
        font-size: 13px;
    }

    .tab-icon {
        font-size: 16px;
    }

    .pe-ratio-currency-selector {
        margin-bottom: 25px;
        flex-direction: column;
        align-items: stretch;
    }

    .pe-ratio-currency-selector label {
        margin-bottom: 8px;
    }

    .pe-ratio-select {
        min-width: auto;
    }

    .pe-ratio-input-row {
        grid-template-columns: 1fr;
        gap: 15px;
    }

    .pe-ratio-input {
        padding: 12px 14px;
        font-size: 14px;
    }

    .pe-ratio-unit {
        top: 36px;
        right: 14px;
        font-size: 12px;
    }

    .pe-ratio-button-group {
        gap: 12px;
        margin-top: 25px;
    }

    .pe-ratio-btn {
        padding: 14px 20px;
        font-size: 13px;
    }

    .pe-ratio-result-box {
        padding: 25px 20px;
        margin-bottom: 20px;
    }

    .pe-ratio-result-value {
        font-size: 32px;
    }

    .pe-ratio-result-label {
        font-size: 12px;
        margin-bottom: 10px;
    }

    .pe-ratio-interpretation,
    .pe-ratio-calculation-show {
        padding: 16px;
    }

    .pe-ratio-interpretation strong,
    .pe-ratio-calculation-show strong {
        font-size: 13px;
    }

    .pe-ratio-interpretation p,
    .pe-ratio-calculation-show p {
        font-size: 14px;
    }

    .pe-ratio-info-section {
        padding: 25px 20px;
    }

    .pe-ratio-info-section h3 {
        font-size: 16px;
        margin-bottom: 12px;
    }

    .pe-ratio-info-section p,
    .pe-ratio-info-section li {
        font-size: 14px;
    }

    .pe-ratio-result-type {
        margin-bottom: 20px;
    }
}

@media (max-width: 480px) {
    .pe-ratio-calculator-wrapper {
        padding: 15px 10px;
    }

    .pe-ratio-header {
        padding: 25px 15px;
    }

    .pe-ratio-header h1 {
        font-size: 20px;
    }

    .pe-ratio-header p {
        font-size: 13px;
    }

    .pe-ratio-main {
        padding: 20px 15px;
    }

    .pe-ratio-tab-buttons {
        gap: 8px;
        margin-bottom: 20px;
    }

    .pe-ratio-tab-btn {
        min-width: 100px;
        padding: 10px 12px;
        font-size: 12px;
        flex: 1;
    }

    .tab-icon {
        font-size: 14px;
        margin-right: 2px;
    }

    .pe-ratio-currency-selector {
        margin-bottom: 20px;
    }

    .pe-ratio-input-row {
        gap: 12px;
    }

    .pe-ratio-input {
        padding: 11px 12px;
        font-size: 13px;
    }

    .pe-ratio-button-group {
        gap: 10px;
        margin-top: 20px;
        flex-direction: column;
    }

    .pe-ratio-btn {
        padding: 12px 16px;
        font-size: 12px;
    }

    .pe-ratio-result-box {
        padding: 20px 15px;
        margin-bottom: 18px;
    }

    .pe-ratio-result-value {
        font-size: 28px;
    }

    .pe-ratio-result-label {
        font-size: 11px;
    }

    .pe-ratio-info-section {
        padding: 20px 15px;
    }

    .pe-ratio-info-section h3 {
        font-size: 15px;
    }

    .pe-ratio-info-section p {
        margin-bottom: 18px;
    }
}

/* ==========================================
   Utility Classes
   ========================================== */

.pe-ratio-loading {
    opacity: 0.6;
    pointer-events: none;
}

.pe-ratio-success-animation {
    animation: pulse 0.5s ease;
}

@keyframes pulse {
    0%, 100% {
        opacity: 1;
    }
    50% {
        opacity: 0.8;
    }
}