/* styles.css */

/* CSS Variables for Theming */
:root {
    /* Light Theme Colors */
    --background-color: #f0f4f8;
    --card-background: #ffffff;
    --text-color: #333333;
    --primary-color: #66b2ff;
    --secondary-color: #6c757d;
    --button-color: #66b2ff;
    --button-hover: #3399ff;
    --border-color: #ced4da;
    --calculation-background: #e9ecef;
    --result-background: #f8f9fa;
    --error-color: #dc3545;
    --success-color: #28a745;
    --toast-background: rgba(0,0,0,0.7);
    --toast-text-color: #fff;
}

[data-theme="dark"] {
    /* Dark Theme Colors */
    --background-color: #121212;
    --card-background: #1e1e1e;
    --text-color: #e0e0e0;
    --primary-color: #66b2ff;
    --secondary-color: #343a40;
    --button-color: #66b2ff;
    --button-hover: #3399ff;
    --border-color: #555555;
    --calculation-background: #2c3e50;
    --result-background: #34495e;
    --error-color: #ff6b6b;
    --success-color: #51cf66;
    --toast-background: rgba(255,255,255,0.9);
    --toast-text-color: #333333;
}

/* Basic Reset */
*, *::before, *::after {
    box-sizing: border-box;
}

* {
    margin: 0;
    padding: 0;
}

body {
    font-family: 'Poppins', sans-serif;
    background: var(--background-color);
    color: var(--text-color);
    display: flex;
    flex-direction: column;
    min-height: 100vh;
    transition: background 0.3s, color 0.3s;
}

/* Fluid Typography */
html {
    font-size: clamp(12px, 1.5vw, 16px);
}

h1 {
    font-size: clamp(1.5rem, 3vw, 2.5rem);
}

h2.subtitle {
    font-size: clamp(1rem, 2vw, 1.2rem);
}

h3 {
    font-size: clamp(1.1rem, 2.5vw, 1.5rem);
}

p, ol, li, label, button, .result-item strong, .result-item span {
    font-size: clamp(0.9rem, 1.2vw, 1.1rem);
}

/* Container */
.container {
    width: 100%;
    max-width: 800px;
    margin: 50px auto;
    padding: 30px 25px;
    background: var(--card-background);
    border-radius: 12px;
    box-shadow: 0 4px 12px rgba(0,0,0,0.1);
    transition: background 0.3s, box-shadow 0.3s;
}

h1 {
    text-align: center;
    margin-bottom: 10px;
    color: var(--primary-color);
    font-weight: 600;
    /* font-size is handled by fluid typography */
}

h2.subtitle {
    text-align: center;
    margin-bottom: 30px;
    color: var(--secondary-color);
    font-weight: 400;
    /* font-size is handled by fluid typography */
}

/* Kopieringsikon bredvid Resultat */
.results-header {
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    margin-bottom: 20px;
}

.results-header h2 {
    color: var(--primary-color);
    font-size: 1.8rem;
    font-weight: 600;
    text-align: center;
    /* font-size is handled by fluid typography */
}

.copy-all-btn {
    position: absolute;
    right: 0;
    top: 50%;
    transform: translateY(-50%);
    cursor: pointer;
    background: none;
    border: none;
    color: var(--primary-color);
    font-size: 1.5rem;
    transition: color 0.3s;
}

.copy-all-btn:hover {
    color: var(--button-hover);
}

/* Animation för kopieringsknappen när den kopierar framgångsrikt */
.copy-all-btn.success i {
    color: var(--success-color); /* Ändrar färgen till success-color */
    animation: fadeOut 0.5s forwards; /* Startar fadeOut animation */
}

@keyframes fadeOut {
    0% { opacity: 1; }
    100% { opacity: 0; }
}

.theme-toggle {
    position: fixed;
    top: 20px;
    right: 20px;
    display: flex;
    align-items: center;
    cursor: pointer;
    background: var(--card-background);
    padding: 10px 15px;
    border-radius: 25px;
    box-shadow: 0 4px 6px rgba(0,0,0,0.1);
    transition: background 0.3s, box-shadow 0.3s;
    z-index: 1000;
}

.theme-toggle i {
    margin-right: 8px;
    color: var(--primary-color);
}

.input-group {
    display: flex;
    flex-direction: column;
    margin-bottom: 20px;
    position: relative;
}

.input-group label {
    margin-bottom: 5px;
    font-weight: 600;
    display: flex;
    align-items: center;
    /* font-size is handled by fluid typography */
}

.input-group label i {
    margin-right: 8px;
    color: var(--primary-color);
    cursor: pointer;
}

.input-group input {
    padding: 12px 15px;
    font-size: 1rem; /* Handled by fluid typography */
    border: 2px solid var(--border-color);
    border-radius: 8px;
    transition: border-color 0.3s, background 0.3s, color 0.3s;
    background: var(--background-color);
    color: var(--text-color);
    width: 100%;
}

.input-group input:focus {
    border-color: var(--primary-color);
    outline: none;
}

.input-group .error-message {
    color: var(--error-color);
    font-size: 0.875rem;
    margin-top: 5px;
    display: none;
}

.input-group .success-message {
    color: var(--success-color);
    font-size: 0.875rem;
    margin-top: 5px;
    display: none;
}

/* Button Group for Calculate and Reset */
.button-group {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 25px;
    position: relative;
}

.button-group button {
    flex: 1;
    padding: 12px;
    font-size: 1.1rem; /* Handled by fluid typography */
    background: var(--button-color);
    color: #fff;
    border: none;
    border-radius: 8px;
    cursor: pointer;
    transition: background 0.3s, transform 0.2s;
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 10px;
    margin: 0 5px;
}

.button-group button:hover {
    background: var(--button-hover);
    transform: translateY(-2px);
}

.button-group button:active {
    transform: translateY(0);
}

.button-group button i {
    font-size: 1rem;
}

/* Loading Spinner */
.spinner {
    position: absolute;
    left: 50%;
    top: 50%;
    transform: translate(-50%, -50%);
    border: 4px solid rgba(0, 0, 0, 0.1);
    border-top: 4px solid var(--primary-color);
    border-radius: 50%;
    width: 30px;
    height: 30px;
    animation: spin 1s linear infinite;
    display: none;
    z-index: 1001;
}

@keyframes spin {
    0% { transform: translate(-50%, -50%) rotate(0deg); }
    100% { transform: translate(-50%, -50%) rotate(360deg); }
}

/* Resultat */
.results {
    display: none;
    padding: 25px;
    background: var(--card-background);
    border-radius: 10px;
    box-shadow: 0 4px 8px rgba(0,0,0,0.05);
    transition: background 0.3s, box-shadow 0.3s;
    overflow-x: auto;
}

.results .result-item {
    margin-bottom: 15px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 12px 15px;
    background: var(--result-background);
    border-radius: 8px;
    box-shadow: 0 2px 4px rgba(0,0,0,0.05);
    transition: background 0.3s, box-shadow 0.3s;
    font-size: clamp(0.9rem, 1.2vw, 1.1rem);
    min-width: 250px;
}

.results .result-item strong {
    font-weight: 600;
    color: var(--primary-color);
}

.results .result-item span {
    text-align: right;
    flex: 1;
    margin-left: 10px;
    word-break: break-word;
}

/* Anpassa resultatsektionen för små skärmar */
@media (max-width: 768px) {
    .results .result-item {
        flex-direction: column;
        align-items: flex-start;
        padding: 10px 12px;
        font-size: clamp(0.8rem, 1vw, 1rem);
    }

    .results .result-item strong {
        width: 100%;
        margin-bottom: 5px;
    }

    .results .result-item span {
        width: 100%;
        text-align: left;
        margin-left: 0;
    }
}

/* Calculation Steps and Graph */
.calculation {
    background: var(--calculation-background);
    padding: 20px;
    border-radius: 8px;
    box-shadow: 0 2px 4px rgba(0,0,0,0.05);
    margin-top: 25px;
    transition: background 0.3s, box-shadow 0.3s;
    font-size: clamp(0.8rem, 1vw, 0.95rem);
    line-height: 1.6;
    overflow-x: auto;
}

.calculation-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 15px;
    position: relative;
}

.calculation-header h3 {
    color: var(--primary-color);
    font-weight: 600;
    font-size: clamp(1.1rem, 2.5vw, 1.5rem);
}

.calculation p, .calculation ol {
    margin-bottom: 10px;
}

.calculation ol {
    padding-left: 20px;
}

@media (max-width: 768px) {
    .calculation {
        padding: 15px;
        font-size: clamp(0.75rem, 0.8vw, 0.9rem);
    }

    .calculation ol {
        padding-left: 15px;
    }
}

/* Chart Container */
.chart-container {
    width: 100%;
    max-width: 400px;
    margin: 20px auto;
}

@media (max-width: 768px) {
    .chart-container {
        max-width: 100%;
    }
}

/* Toast Notifications */
.toast {
    position: fixed;
    top: 20px;
    right: 20px;
    background: var(--toast-background);
    color: var(--toast-text-color);
    padding: 15px 20px;
    border-radius: 8px;
    box-shadow: 0 4px 12px rgba(0,0,0,0.2);
    display: none;
    align-items: center;
    gap: 10px;
    z-index: 1002;
}

.toast.success {
    background: var(--success-color);
    color: #fff;
}

.toast.error {
    background: var(--error-color);
    color: #fff;
}

/* Responsive Design */
@media (max-width: 1200px) {
    .container {
        margin: 40px auto;
        padding: 25px 20px;
    }

    h1 {
        font-size: clamp(1.4rem, 3vw, 2.2rem);
    }

    .button-group button {
        font-size: clamp(1rem, 1.5vw, 1.2rem);
    }

    .results .result-item {
        font-size: clamp(0.85rem, 1.1vw, 1rem);
    }

    .calculation h3 {
        font-size: clamp(1rem, 2.2vw, 1.3rem);
    }

    .calculation p, .calculation ol {
        font-size: clamp(0.85rem, 1.1vw, 0.95rem);
    }

    h2.subtitle {
        font-size: clamp(0.9rem, 1.5vw, 1rem);
    }
}

@media (max-width: 992px) {
    .container {
        margin: 30px auto;
        padding: 25px 20px;
    }

    .button-group button {
        font-size: clamp(0.95rem, 1.2vw, 1.1rem);
    }

    .results .result-item {
        font-size: clamp(0.8rem, 1rem, 0.9rem);
    }

    .calculation h3 {
        font-size: clamp(0.95rem, 2vw, 1.2rem);
    }

    .calculation p, .calculation ol {
        font-size: clamp(0.8rem, 1vw, 0.9rem);
    }

    h2.subtitle {
        font-size: clamp(0.85rem, 1.2vw, 0.95rem);
    }
}

@media (max-width: 768px) {
    .button-group {
        flex-direction: column;
    }

    .button-group button {
        margin: 5px 0;
    }

    .results .result-item {
        flex-direction: column;
        align-items: flex-start;
        padding: 10px 12px;
        font-size: clamp(0.8rem, 1vw, 1rem);
    }

    .results .result-item strong {
        width: 100%;
        margin-bottom: 5px;
    }

    .results .result-item span {
        width: 100%;
        text-align: left;
        margin-left: 0;
    }

    .calculation {
        padding: 15px;
        font-size: clamp(0.75rem, 0.8vw, 0.9rem);
    }

    .calculation ol {
        padding-left: 15px;
    }

    .calculation h3 {
        font-size: clamp(1rem, 2.5vw, 1.3rem);
    }

    .calculation p, .calculation ol {
        font-size: clamp(0.8rem, 1vw, 0.85rem);
    }

    h2.subtitle {
        font-size: clamp(0.85rem, 1.2vw, 0.95rem);
    }

    .chart-container {
        max-width: 100%;
    }
}

@media (max-width: 576px) {
    .container {
        margin: 20px auto;
        padding: 20px 15px;
    }

    h1 {
        font-size: clamp(1.2rem, 3vw, 1.8rem);
    }

    .button-group button {
        font-size: clamp(0.9rem, 1.1vw, 1rem);
    }

    .results .result-item {
        font-size: clamp(0.75rem, 0.9vw, 0.85rem);
    }

    .calculation h3 {
        font-size: clamp(0.95rem, 2.2vw, 1.1rem);
    }

    .calculation p, .calculation ol {
        font-size: clamp(0.7rem, 0.9vw, 0.8rem);
    }

    h2.subtitle {
        font-size: clamp(0.75rem, 1vw, 0.85rem);
    }

    .chart-container {
        max-width: 100%;
    }
}

/* Additional Touch Enhancements for Mobile */
@media (hover: none) and (pointer: coarse) {
    .button-group button, .copy-all-btn {
        padding: 15px;
        font-size: clamp(1rem, 1.2vw, 1.1rem);
    }
}