/* Neo-Brutalist CSS Variables & Theme Setup */
@import url('https://fonts.googleapis.com/css2?family=Space+Grotesk:wght@400;500;700;800&family=Space+Mono:wght@400;700&display=swap');

:root {
    --bg-color: #f0f0f0;
    --border-color: #000000;
    --card-bg: #ffffff;
    
    /* Neon Accents */
    --accent-yellow: #ffde47;
    --accent-purple: #c084fc;
    --accent-green: #3be888;
    --accent-red: #ff556b;
    --accent-cyan: #22d3ee;
    
    --border-width: 4px;
    --shadow-offset: 6px;
    --shadow-offset-active: 2px;
    
    --font-display: 'Space Grotesk', sans-serif;
    --font-mono: 'Space Mono', monospace;
}

/* Global Reset */
* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

body {
    background-color: var(--bg-color);
    background-image: 
        radial-gradient(var(--border-color) 1.5px, transparent 1.5px), 
        radial-gradient(var(--border-color) 1.5px, #f0f0f0 1.5px);
    background-size: 30px 30px;
    background-position: 0 0, 15px 15px;
    color: var(--border-color);
    font-family: var(--font-display);
    font-weight: 500;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 2rem 1rem;
}

/* Base Brutalist Container */
.app-container {
    width: 100%;
    max-width: 1000px;
    background-color: var(--accent-yellow);
    border: var(--border-width) solid var(--border-color);
    box-shadow: var(--shadow-offset) var(--shadow-offset) 0px var(--border-color);
    padding: 2.5rem;
    display: grid;
    grid-template-columns: 1.1fr 0.9fr;
    gap: 2.5rem;
    position: relative;
}

@media (max-width: 850px) {
    .app-container {
        grid-template-columns: 1fr;
        padding: 1.5rem 1rem;
        gap: 2rem;
    }
}

/* Header Styling */
.header-section {
    grid-column: 1 / -1;
    border-bottom: var(--border-width) solid var(--border-color);
    padding-bottom: 2rem;
    margin-bottom: 0.5rem;
    background-color: var(--card-bg);
    padding: 2rem;
    border: var(--border-width) solid var(--border-color);
    box-shadow: var(--shadow-offset) var(--shadow-offset) 0px var(--border-color);
    transform: rotate(-0.5deg);
}

.header-section h1 {
    font-family: var(--font-display);
    font-size: 3.2rem;
    font-weight: 800;
    text-transform: uppercase;
    letter-spacing: -1.5px;
    line-height: 0.95;
    margin-bottom: 1rem;
    word-spacing: 2px;
}

.header-section p {
    font-size: 1.1rem;
    line-height: 1.4;
    max-width: 750px;
}

.weights-grid {
    display: flex;
    gap: 1rem;
    margin-top: 1.5rem;
    flex-wrap: wrap;
}

.weight-tag {
    background-color: var(--accent-purple);
    font-family: var(--font-mono);
    font-weight: 700;
    padding: 0.5rem 1rem;
    border: 2.5px solid var(--border-color);
    box-shadow: 3px 3px 0px var(--border-color);
    font-size: 0.9rem;
    text-transform: uppercase;
}

.weight-tag:nth-child(2n) {
    background-color: var(--accent-cyan);
}

/* Inputs / Left Column */
.inputs-section {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.input-card {
    background-color: var(--card-bg);
    border: var(--border-width) solid var(--border-color);
    box-shadow: var(--shadow-offset) var(--shadow-offset) 0px var(--border-color);
    padding: 1.5rem;
    display: flex;
    flex-direction: column;
    gap: 1rem;
    position: relative;
}

.input-card:hover {
    transform: translate(-2px, -2px);
    box-shadow: calc(var(--shadow-offset) + 2px) calc(var(--shadow-offset) + 2px) 0px var(--border-color);
}

.input-info {
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-bottom: 2px solid var(--border-color);
    padding-bottom: 0.5rem;
}

.input-title {
    font-weight: 800;
    font-size: 1.15rem;
    text-transform: uppercase;
}

.input-percentage {
    font-family: var(--font-mono);
    font-weight: 700;
    background-color: var(--border-color);
    color: var(--card-bg);
    padding: 0.25rem 0.5rem;
    font-size: 0.85rem;
}

.number-field-wrapper {
    display: flex;
    position: relative;
    width: 100%;
}

.number-input {
    width: 100%;
    background-color: var(--card-bg);
    border: var(--border-width) solid var(--border-color);
    color: var(--border-color);
    font-family: var(--font-mono);
    font-size: 2rem;
    font-weight: 800;
    padding: 0.75rem 1rem;
    outline: none;
    text-align: left;
}

.number-input:focus {
    background-color: #fafafa;
    border-color: var(--border-color);
    box-shadow: inset 4px 4px 0px rgba(0, 0, 0, 0.15);
    outline: 3px dashed var(--accent-purple);
}

/* Chrome, Safari, Edge, Opera: Remove spin buttons */
.number-input::-webkit-outer-spin-button,
.number-input::-webkit-inner-spin-button {
    -webkit-appearance: none;
    margin: 0;
}
/* Firefox */
.number-input[type=number] {
    -moz-appearance: textfield;
}

/* Error validation states */
.input-card.has-error {
    background-color: #fff1f2;
}

.input-card.has-error .number-input {
    border-color: var(--accent-red);
}

.error-text {
    color: var(--accent-red);
    font-family: var(--font-mono);
    font-size: 0.8rem;
    font-weight: 700;
    display: none;
    text-transform: uppercase;
}

.input-card.has-error .error-text {
    display: block;
}

/* Results / Right Column */
.results-section {
    background-color: var(--card-bg);
    border: var(--border-width) solid var(--border-color);
    box-shadow: var(--shadow-offset) var(--shadow-offset) 0px var(--border-color);
    padding: 2rem;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    position: relative;
    transform: rotate(0.5deg);
}

/* Visual Ticket / Receipt Styling */
.ticket-wrapper {
    display: flex;
    flex-direction: column;
}

.ticket-header {
    border-bottom: var(--border-width) dashed var(--border-color);
    padding-bottom: 1.5rem;
    margin-bottom: 1.5rem;
    text-align: center;
}

.ticket-header h2 {
    font-family: var(--font-display);
    font-size: 1.8rem;
    font-weight: 800;
    text-transform: uppercase;
    letter-spacing: -0.5px;
}

/* Comparison Display */
.grade-panel {
    display: grid;
    grid-template-columns: 1fr;
    gap: 1.25rem;
    margin-bottom: 1.5rem;
}

.panel-card {
    border: var(--border-width) solid var(--border-color);
    padding: 1.25rem;
    text-align: center;
    position: relative;
}

.panel-card.decimal-box {
    background-color: var(--accent-cyan);
    box-shadow: 4px 4px 0px var(--border-color);
}

.panel-card.rounded-box {
    background-color: var(--accent-purple);
    box-shadow: 4px 4px 0px var(--border-color);
}

.panel-card .panel-label {
    font-family: var(--font-display);
    font-size: 0.95rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-bottom: 0.25rem;
}

.panel-card .panel-value {
    font-family: var(--font-mono);
    font-size: 3rem;
    font-weight: 800;
    line-height: 1;
}

/* Dynamic Stamp Signature Element */
.stamp-container {
    position: relative;
    display: flex;
    justify-content: center;
    align-items: center;
    height: 110px;
    margin-top: 0.5rem;
    margin-bottom: 1.5rem;
}

.stamp {
    border: 5px double var(--border-color);
    padding: 0.5rem 2rem;
    font-family: var(--font-display);
    font-size: 2.2rem;
    font-weight: 900;
    text-transform: uppercase;
    letter-spacing: 1px;
    transform: rotate(-6deg);
    transition: all 0.2s ease;
    text-align: center;
}

.stamp.aprobado {
    color: var(--border-color);
    background-color: var(--accent-green);
    box-shadow: 4px 4px 0px var(--border-color);
}

.stamp.desaprobado {
    color: var(--border-color);
    background-color: var(--accent-red);
    box-shadow: 4px 4px 0px var(--border-color);
}

.stamp.invalid {
    background-color: #ddd;
    box-shadow: 4px 4px 0px var(--border-color);
}

/* Detail Contributions Table-style */
.contributions-box {
    border-top: var(--border-width) dashed var(--border-color);
    padding-top: 1.5rem;
    margin-bottom: 1.5rem;
}

.contributions-title {
    font-family: var(--font-display);
    font-size: 1rem;
    font-weight: 800;
    text-transform: uppercase;
    margin-bottom: 1rem;
}

.contrib-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-family: var(--font-mono);
    font-size: 0.9rem;
    margin-bottom: 0.6rem;
    border-bottom: 1px solid rgba(0, 0, 0, 0.15);
    padding-bottom: 0.4rem;
}

.contrib-row:last-child {
    border-bottom: none;
    margin-bottom: 0;
}

.contrib-value {
    font-weight: 700;
}

/* Action Reset Button */
.btn-reset-brutalist {
    background-color: var(--card-bg);
    border: var(--border-width) solid var(--border-color);
    box-shadow: 4px 4px 0px var(--border-color);
    color: var(--border-color);
    font-family: var(--font-display);
    font-size: 1.1rem;
    font-weight: 800;
    text-transform: uppercase;
    padding: 1rem;
    cursor: pointer;
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.75rem;
    position: relative;
}

.btn-reset-brutalist:hover {
    background-color: var(--accent-yellow);
    transform: translate(-2px, -2px);
    box-shadow: 6px 6px 0px var(--border-color);
}

.btn-reset-brutalist:active {
    transform: translate(2px, 2px);
    box-shadow: 2px 2px 0px var(--border-color);
}

/* Footer Styling */
.footer-section {
    grid-column: 1 / -1;
    text-align: center;
    font-family: var(--font-mono);
    font-size: 0.8rem;
    font-weight: 700;
    background-color: var(--card-bg);
    border: var(--border-width) solid var(--border-color);
    padding: 0.8rem;
    box-shadow: 3px 3px 0px var(--border-color);
    margin-top: 1rem;
    text-transform: uppercase;
}