/* ================================== */
/* ===    THÈME CSS V17 (THÈMES)   === */
/* ================================== */

:root {
    --font-primary: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    --font-mono: 'Roboto Mono', monospace;
    
    /* Variables de transition (ne changent pas) */
    --transition-speed: 0.2s;
    --shadow-light: 0 4px 12px rgba(0, 0, 0, 0.05);
    --shadow-dark: 0 4px 12px rgba(0, 0, 0, 0.2);
}

/* ================================== */
/* ===    THÈME 1: MACHINE (SOMBRE)  === */
/* ================================== */
body.theme-dark {
    --color-primary: #e67e22; /* Ambre/Orange */
    --color-primary-light: #4a382a;
    --color-primary-border: #8c5b31;

    --color-text-dark: #f5f5f5; /* Blanc cassé */
    --color-text-body: #cccccc; /* Gris clair */
    --color-text-light: #888888; /* Gris moyen */

    --color-bg: #1e1e1e; /* Fond très sombre */
    --color-bg-card: #2a2a2a; /* Fond de carte */
    --color-bg-alt: #252525; /* Fond de titre */
    --color-border: #444444;

    --color-warning-red: #e74c3c;
    --color-audio-accent: #27ae60; /* Vert pour l'audio */

    /* Couleurs par carte */
    --card-params-bg: #2a2520;
    --card-params-border: #6b4e23;
    --card-results-bg: #252a2a;
    --card-results-border: #236b55;
    --card-network-bg: #25252a;
    --card-network-border: #4d4d7d;
    --card-planning-bg: #2a2525;
    --card-planning-border: #7d4d4d;
    --card-codec-bg: #252a28;
    --card-codec-border: #4e7d64;
}

/* ================================== */
/* ===    THÈME 2: DIGITAL (NOIR) === */
/* ================================== */
body.theme-digital {
    --color-primary: #E60000; /* Rouge vif "digital" */
    --color-primary-light: #4a2a2a;
    --color-primary-border: #8c3131;

    --color-text-dark: #F0F0F0; /* Blanc cassé */
    --color-text-body: #D0D0D0; /* Gris clair */
    --color-text-light: #999999; /* Gris moyen */

    --color-bg: #0a0a0a; /* Fond noir pur */
    --color-bg-card: #1a1a1a; /* Fond de carte (charbon) */
    --color-bg-alt: #222222; /* Fond de titre */
    --color-border: #333333;

    --color-warning-red: #FF4136; /* Rouge plus vif */
    --color-audio-accent: #00E676; /* Vert vif */

    /* Couleurs par carte */
    --card-params-bg: #1a1510;
    --card-params-border: #8b4513;
    --card-results-bg: #101a1a;
    --card-results-border: #00e676;
    --card-network-bg: #15151a;
    --card-network-border: #6a5acd;
    --card-planning-bg: #1a1015;
    --card-planning-border: #dc143c;
    --card-codec-bg: #101a16;
    --card-codec-border: #00e676;
}

/* ================================== */
/* ===    THÈME 3: CLAIR (BLEU)    === */
/* ================================== */
body.theme-light {
    --color-primary: #005A9C; /* Bleu principal unifié */
    --color-primary-light: #e6f0f9;
    --color-primary-border: #b3d1ef;

    --color-text-dark: #2c3e50; /* Titres et texte important */
    --color-text-body: #34495e; /* Texte courant */
    --color-text-light: #7f8c8d; /* Labels et sous-titres */

    --color-bg: #f4f7f9; /* Fond général */
    --color-bg-card: #ffffff;
    --color-bg-alt: #f8f9fa; /* Fond neutre pour boîtes */
    --color-border: #dfe4e7;

    --color-warning-red: #c0392b;
    --color-audio-accent: #16a085; /* Vert/turquoise */

    /* Couleurs par carte */
    --card-params-bg: #fff8f0;
    --card-params-border: #d4a574;
    --card-results-bg: #f0faf8;
    --card-results-border: #74c7b8;
    --card-network-bg: #f0f4ff;
    --card-network-border: #7a9ad4;
    --card-planning-bg: #fff0f4;
    --card-planning-border: #d47a9a;
    --card-codec-bg: #f0fff8;
    --card-codec-border: #74d4a5;
}


/* ================================== */
/* ===     STYLES GLOBAUX         === */
/* ================================== */

body {
    font-family: var(--font-primary);
    background-color: var(--color-bg);
    color: var(--color-text-body);
    line-height: 1.6;
    padding: 20px;
    transition: background-color var(--transition-speed), color var(--transition-speed);
}

.global-header {
    background-color: var(--color-primary);
    color: white;
    padding: 12px 25px;
    margin-bottom: 20px;
    border-radius: 10px;
    box-shadow: var(--shadow-dark);
    display: flex;
    justify-content: space-between;
    align-items: center;
    max-width: 1400px;
    margin-left: auto;
    margin-right: auto;
    transition: background-color var(--transition-speed);
}
.global-header h1 {
    margin: 0;
    font-size: 1.5rem;
    font-weight: 700;
}
.global-header .subtitle-main {
    margin: 0;
    opacity: 0.9;
    font-size: 0.95rem;
    font-weight: 400;
}
.global-header .subtitle-author {
    margin: 5px 0 0 0;
    opacity: 0.85;
    font-size: 0.8rem;
    font-weight: 300;
    font-style: italic;
}

/* --- NOUVEAU: Header Actions (Coffee Link + Theme Selector) --- */
.header-actions {
    display: flex;
    align-items: center;
    gap: 20px;
}

/* --- Coffee Link Styling --- */
.coffee-link {
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 8px 14px;
    background-color: rgba(255, 255, 255, 0.15);
    color: white;
    text-decoration: none;
    border-radius: 6px;
    font-size: 0.9rem;
    font-weight: 600;
    transition: all 0.2s ease;
    border: 1px solid rgba(255, 255, 255, 0.3);
}
.coffee-link:hover {
    background-color: rgba(255, 255, 255, 0.25);
    transform: translateY(-2px);
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.2);
}
.coffee-link svg {
    flex-shrink: 0;
}

/* --- Theme Selector Dropdown --- */
.theme-selector-wrapper {
    display: flex;
    align-items: center;
    gap: 8px;
}
.theme-selector-wrapper label {
    color: white;
    font-size: 0.9rem;
    font-weight: 600;
    margin: 0;
}
#theme-switcher {
    padding: 6px 10px;
    background-color: rgba(255, 255, 255, 0.15);
    color: white;
    border: 1px solid rgba(255, 255, 255, 0.3);
    border-radius: 6px;
    font-size: 0.9rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s ease;
    font-family: var(--font-primary);
}
#theme-switcher:hover {
    background-color: rgba(255, 255, 255, 0.25);
}
#theme-switcher:focus {
    outline: none;
    box-shadow: 0 0 0 3px rgba(255, 255, 255, 0.3);
}
#theme-switcher option {
    background-color: var(--color-bg-card);
    color: var(--color-text-dark);
}


@media (max-width: 900px) {
    .global-header {
        flex-direction: column;
        align-items: start;
        padding: 15px 20px;
    }
    .global-header h1 { font-size: 1.3rem; }
    .global-header .subtitle-main { font-size: 0.9rem; }
    .global-header .subtitle-author { font-size: 0.75rem; }
    .header-actions {
        margin-top: 12px;
        width: 100%;
        flex-wrap: wrap;
        gap: 10px;
    }
    .coffee-link {
        font-size: 0.85rem;
        padding: 6px 12px;
    }
    .theme-selector-wrapper {
        flex: 1;
    }
    #theme-switcher {
        width: 100%;
    }
}


/* --- STRUCTURE 2 LIGNES x 3 COLONNES --- */
main {
    display: grid;
    grid-template-columns: 1fr 1fr 1fr; /* 3 colonnes équilibrées */
    gap: 20px;
    max-width: 1400px;
    margin: auto;
    align-items: start;
}

/* Positionnement des colonnes - Ligne principale */
.main-row-1-col-1 {
    grid-column: 1;
    grid-row: 1;
}

.main-row-1-col-2 {
    grid-column: 2;
    grid-row: 1;
}

.main-row-1-col-3 {
    grid-column: 3;
    grid-row: 1;
}

/* Positionnement des colonnes - Ligne stockage */
.main-row-2-col-1 {
    grid-column: 1;
    grid-row: 2;
}

.main-row-2-col-2 {
    grid-column: 2;
    grid-row: 2;
}

.main-row-2-col-3 {
    grid-column: 3;
    grid-row: 2;
}

@media (max-width: 1200px) { /* Tablette large -> 2 colonnes */
    main {
        grid-template-columns: 1fr 1fr;
        max-width: 1000px;
    }

    /* Réorganisation pour tablette - Ligne principale */
    .main-row-1-col-1 {
        grid-column: 1;
        grid-row: 1;
    }

    .main-row-1-col-2 {
        grid-column: 2;
        grid-row: 1;
    }

    .main-row-1-col-3 {
        grid-column: 1 / 3; /* Pleine largeur */
        grid-row: 2;
    }

    /* Réorganisation pour tablette - Ligne stockage */
    .main-row-2-col-1 {
        grid-column: 1;
        grid-row: 3;
    }

    .main-row-2-col-2 {
        grid-column: 2;
        grid-row: 3;
    }

    .main-row-2-col-3 {
        grid-column: 1 / 3; /* Pleine largeur */
        grid-row: 4;
    }
}

@media (max-width: 900px) { /* Tablette/Mobile -> 1 colonne */
    main {
        grid-template-columns: 1fr;
    }

    /* Tout en colonne unique sur mobile */
    .main-row-1-col-1,
    .main-row-1-col-2,
    .main-row-1-col-3,
    .main-row-2-col-1,
    .main-row-2-col-2,
    .main-row-2-col-3 {
        grid-column: 1;
        grid-row: auto;
    }
}

/* --- Cartes --- */
.card {
    background: var(--color-bg-card);
    border-radius: 10px;
    box-shadow: var(--shadow-light);
    overflow: hidden;
    border: 1px solid var(--color-border);
    margin-bottom: 20px; 
    transition: background-color var(--transition-speed), border-color var(--transition-speed);
}

.card-column > .card:last-child {
    margin-bottom: 0;
}

/* --- Couleurs spécifiques par carte --- */
#calculator {
    background-color: var(--card-params-bg);
    border-color: var(--card-params-border);
}

#results {
    background-color: var(--card-results-bg);
    border-color: var(--card-results-border);
}

#calculation-details {
    background-color: var(--card-results-bg);
    border-color: var(--card-results-border);
}

#network-card-results {
    background-color: var(--card-network-bg);
    border-color: var(--card-network-border);
}

#planning {
    background-color: var(--card-planning-bg);
    border-color: var(--card-planning-border);
}

#codec-comparator {
    background-color: var(--card-codec-bg);
    border-color: var(--card-codec-border);
}

.card-content {
    padding: 25px;
}

#calculator .card-content {
    padding: 15px 20px 10px 20px;
}

/* --- Titres --- */
h2 {
    font-size: 1.3rem;
    color: var(--color-text-dark);
    margin-top: -25px;
    margin-left: -25px;
    margin-right: -25px;
    margin-bottom: 20px; 
    border-bottom: 2px solid var(--color-border); 
    padding: 12px 25px;
    font-weight: 700;
    background-color: var(--color-bg-alt);
    transition: background-color var(--transition-speed), color var(--transition-speed), border-color var(--transition-speed);
}

h3 {
    font-size: 1.1rem;
    color: var(--color-text-dark);
    margin-top: 20px; 
    margin-bottom: 10px; 
    font-weight: 600;
    transition: color var(--transition-speed);
}

/* Styles compacts pour la carte #calculator */
#calculator .card-content {
     padding: 15px 20px;
}

#calculator h2 {
    font-size: 1.15rem;
    margin-bottom: 10px;
    padding: 8px 20px;
    margin-left: -20px;
    margin-right: -20px;
    margin-top: -15px;
}

#calculator h2:not(:first-of-type) {
    margin-top: 15px;
}

#calculator h3 {
    font-size: 0.95rem;
    margin-top: 10px;
    margin-bottom: 6px;
}

h4 {
    font-size: 0.95rem;
    color: var(--color-text-light);
    margin-top: 20px;
    margin-bottom: 10px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    font-weight: 600;
}

/* --- Grilles de Formulaires --- */
#params-grid, #jab-grid, #audio-grid, #planning-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 12px;
}
#jab-grid { grid-template-columns: 1fr 1fr 1fr; }
#audio-grid { grid-template-columns: 1fr 1fr 1fr; }
#network-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 12px;
}

#calculator #params-grid, #calculator #jab-grid, #calculator #audio-grid, #calculator #network-grid {
    gap: 6px;
}

.form-group {
    margin-bottom: 8px;
}

#calculator .form-group {
    margin-bottom: 0;
}

.form-group label {
    display: block;
    font-weight: 600;
    font-size: 0.85rem;
    margin-bottom: 5px;
    color: var(--color-text-body);
    transition: color var(--transition-speed);
}

#calculator .form-group label {
    font-size: 0.75rem;
    margin-bottom: 2px;
}

/* Distinction Préréglages / Manuel */
.preset-label {
    color: var(--color-text-light) !important;
    font-weight: 400 !important;
}

.preset-select {
    text-align: left !important;
    padding-left: 10px !important;
    color: var(--color-text-light) !important; /* Discret */
    font-weight: 600;
    border-color: var(--color-border) !important;
    background-color: var(--color-bg-alt) !important;
}
.preset-select:focus {
    color: var(--color-text-dark) !important;
}
.preset-select option {
    font-weight: 400;
    color: var(--color-text-dark);
    background-color: var(--color-bg-card);
}

.form-group input, .form-group select {
    width: 100%;
    padding: 8px;
    font-size: 0.95rem;
    font-family: var(--font-primary);
    border-radius: 5px;
    border: 1px solid var(--color-border);
    background-color: var(--color-bg-card);
    color: var(--color-text-dark);
    box-sizing: border-box; 
    text-align: center;
    transition: all var(--transition-speed) ease;
}

/* Saisie manuelle */
#calculator .form-group input[type="number"],
#calculator .form-group #scan-type,
#calculator .form-group #audio-freq,
#calculator .form-group #audio-bits,
#calculator .form-group #network-video-mode,
#calculator .form-group #network-audio-latency {
    border: 1px solid var(--color-primary-border); /* Bordure accentuée */
    font-weight: 600;
    color: var(--color-text-dark);
}
/* Focus */
.form-group input:focus, .form-group select:focus {
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px var(--color-primary-light);
    outline: none;
    background-color: var(--color-bg-card);
}

#calculator .form-group input, #calculator .form-group select {
    padding: 4px;
    font-size: 0.85rem;
}

.form-group input[type="number"] { -moz-appearance: textfield; }
input::-webkit-outer-spin-button,
input::-webkit-inner-spin-button { -webkit-appearance: none; margin: 0; }

/* --- Checkbox RAW --- */
.checkbox-group {
    display: flex; align-items: center; background-color: var(--color-bg-alt);
    border: 1px solid var(--color-border); padding: 8px 12px;
    border-radius: 5px; margin-top: 8px;
    transition: background-color var(--transition-speed), border-color var(--transition-speed);
}
.checkbox-group input { width: auto; margin-right: 12px; transform: scale(1.2); }
.checkbox-group label { margin: 0; font-weight: 600; font-size: 0.95rem; color: var(--color-text-dark); transition: color var(--transition-speed); }

#calculator .checkbox-group {
    padding: 4px 10px;
    margin-top: 6px;
}
#calculator .checkbox-group input { transform: scale(1.1); }
#calculator .checkbox-group label { font-size: 0.85rem; }


/* --- Affichage Débit Audio (MODIFIÉ) --- */
#audio-info-display {
    background-color: var(--color-bg-alt);
    border: 1px solid var(--color-border);
    border-left: 4px solid var(--color-audio-accent); 
    padding: 6px 10px;
    margin-top: 8px;
    border-radius: 5px;
    transition: background-color var(--transition-speed), border-color var(--transition-speed), border-left-color var(--transition-speed);
}
#audio-info-display p {
    margin: 0;
    padding: 2px 0;
    font-family: var(--font-mono);
    font-size: 0.85rem;
    text-align: center;
    font-weight: 600;
}
#calculator #audio-info-display {
    padding: 4px 10px;
    margin-top: 6px;
}
#calculator #audio-info-display p {
    font-size: 0.8rem;
}
#audio-bitrate-display {
    color: var(--color-audio-accent);
    transition: color var(--transition-speed);
}
#audio-mtu-warning {
    color: var(--color-text-body);
    font-weight: 600;
    transition: color var(--transition-speed);
}
#audio-mtu-warning.warning-red {
    color: var(--color-warning-red);
    font-weight: 700;
}


/* --- Pédagogie --- */
#pedagogy-details {
    background-color: var(--color-bg-alt); border: 1px solid var(--color-border); border-left: 4px solid var(--color-text-light);
    padding: 12px 15px;
    border-radius: 5px; font-family: var(--font-mono);
    font-size: 0.9rem;
    margin-top: 15px;
    transition: background-color var(--transition-speed), border-color var(--transition-speed);
}
#pedagogy-details div { margin-bottom: 8px; padding-bottom: 8px; border-bottom: 1px dashed var(--color-border); transition: border-color var(--transition-speed); }
#pedagogy-details div:last-child { margin-bottom: 0; padding-bottom: 0; border-bottom: none; }
#pedagogy-details strong { color: var(--color-text-dark); transition: color var(--transition-speed); }
#pedagogy-details .formula { color: var(--color-primary); font-weight: 600; transition: color var(--transition-speed); } 

#calculator #pedagogy-details {
    padding: 8px 10px;
    font-size: 0.8rem;
    margin-top: 10px;
}
#calculator #pedagogy-details div { margin-bottom: 5px; padding-bottom: 5px; }


/* --- Résultats --- */
#results-container, #planning-results-container, #network-results-container, #network-capacity-container,
#planning-streams-container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 15px;
    text-align: center;
}

#planning-results-container {
     grid-template-columns: 1fr 1fr 1fr;
     gap: 10px;
}

.result-box {
    background-color: var(--color-primary-light); 
    border: 1px solid var(--color-primary-border); 
    color: var(--color-primary);
    padding: 15px;
    border-radius: 8px;
    transition: background-color var(--transition-speed), border-color var(--transition-speed), color var(--transition-speed);
}
.result-box .label { font-size: 0.85rem; font-weight: 600; display: block; margin-bottom: 5px; opacity: 0.8; }
.result-box .value { font-size: 1.7rem; font-weight: 700; line-height: 1.2; }
.result-box .unit { font-size: 0.9rem; opacity: 0.9; }

.result-box-alt {
    background-color: var(--color-bg-alt);
    border-color: var(--color-border);
    color: var(--color-text-dark);
}

/* Code couleur pour distinguer débits vs flux */
.result-box-bitrate {
    border-left: 3px solid #3498db;
    background: linear-gradient(135deg, var(--color-bg-alt) 0%, rgba(52, 152, 219, 0.05) 100%);
}

.result-box-streams {
    border-left: 3px solid #27ae60;
    background: linear-gradient(135deg, var(--color-bg-alt) 0%, rgba(39, 174, 96, 0.05) 100%);
}

.result-details {
    margin-top: 10px;
    font-size: 0.8rem;
    font-family: var(--font-mono);
    color: var(--color-text-light);
    line-height: 1.4;
    text-align: left;
    padding-left: 5px;
    transition: color var(--transition-speed);
}
.result-details span {
    display: block;
}

.result-details .alert-red {
    color: var(--color-warning-red);
    font-weight: 700;
}

/* --- Bandwidth Visual Bars --- */
.bandwidth-bar-container {
    margin-top: 12px;
    width: 100%;
}

.bandwidth-bar {
    display: flex;
    height: 28px;
    width: 100%;
    border-radius: 6px;
    overflow: hidden;
    background-color: var(--color-border);
    box-shadow: inset 0 1px 3px rgba(0, 0, 0, 0.3);
}

.bandwidth-segment {
    display: flex;
    align-items: center;
    justify-content: center;
    height: 100%;
    transition: width 0.3s ease, background-color var(--transition-speed);
    position: relative;
}

.bandwidth-segment.payload {
    background-color: var(--color-primary);
    border-right: 1px solid rgba(255, 255, 255, 0.2);
}

.bandwidth-segment.overhead {
    background-color: var(--color-warning-red);
}

.bandwidth-label {
    font-family: var(--font-mono);
    font-size: 0.75rem;
    font-weight: 700;
    color: white;
    text-shadow: 0 1px 2px rgba(0, 0, 0, 0.5);
    white-space: nowrap;
}

/* Hide labels if segment too small */
.bandwidth-segment[style*="width: 0"] .bandwidth-label,
.bandwidth-segment[style*="width: 1"] .bandwidth-label,
.bandwidth-segment[style*="width: 2"] .bandwidth-label {
    display: none;
}

/* --- Radio Toggles --- */
.radio-group {
    display: flex;
    justify-content: space-around;
    background-color: var(--color-border);
    border-radius: 8px;
    padding: 4px;
    margin-bottom: 20px;
    transition: background-color var(--transition-speed);
}
.radio-group label {
    flex: 1; text-align: center; padding: 8px;
    border-radius: 6px; cursor: pointer; transition: all 0.2s ease;
    font-weight: 600; font-size: 0.85rem;
    color: var(--color-text-body);
}
.radio-group input { display: none; }
.radio-group input:checked + label {
    background-color: var(--color-primary);
    color: white;
    box-shadow: var(--shadow-dark);
}

.radio-group-small {
    padding: 3px;
    margin-top: 15px;
    margin-bottom: 10px;
}
.radio-group-small label {
    padding: 5px;
    font-size: 0.8rem;
}


/* --- Comparateur --- */
.full-width-container {
    max-width: 1400px;
    margin: 0 auto 20px auto;
}
@media (max-width: 1200px) {
    .full-width-container { max-width: 1000px; }
}
@media (max-width: 900px) {
     .full-width-container {
        max-width: none;
    }
}

/* Wrapper pour défilement horizontal sur mobile */
.codec-table-wrapper {
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    margin: 0 -25px; /* Compense le padding de card-content */
    padding: 0 25px;
}

.comparator-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.9rem;
    margin-top: 15px;
    min-width: 500px; /* Force une largeur minimale */
}
.comparator-table th, .comparator-table td {
    padding: 10px;
    border-bottom: 1px solid var(--color-border);
    text-align: left;
    transition: border-color var(--transition-speed);
}
.comparator-table th {
    background-color: var(--color-bg-alt);
    font-weight: 600;
    color: var(--color-text-body);
    transition: background-color var(--transition-speed), color var(--transition-speed);
}
.comparator-table td:nth-child(2) { font-weight: 600; color: var(--color-text-dark); }
.comparator-table .highlight { background-color: var(--color-primary-light); }
.comparator-table .highlight td {
    color: var(--color-primary);
    font-weight: 600;
}

/* Responsive pour table sur mobile */
@media (max-width: 900px) {
    .codec-table-wrapper {
        margin: 0 -20px;
        padding: 0 20px;
    }
    .comparator-table {
        font-size: 0.8rem;
    }
    .comparator-table th, .comparator-table td {
        padding: 8px 6px;
    }
}

/* --- Aide-Mémoire (Glossaire) --- */
#help-glossary dl {
    display: grid;
    grid-template-columns: auto 1fr;
    gap: 10px 20px;
}
#help-glossary dt {
    font-weight: 700;
    color: var(--color-text-dark);
    grid-column: 1;
    font-size: 0.9rem;
}
#help-glossary dd {
    grid-column: 2;
    margin: 0;
    font-size: 0.9rem;
    color: var(--color-text-body);
}

/* --- Labels des préréglages --- */
.preset-label {
    font-size: 0.8rem !important;
    font-weight: 400 !important;
    color: var(--color-text-light) !important;
}

/* --- Labels des champs manuels --- */
#calculator .form-group label:not(.preset-label) {
    color: var(--color-text-dark) !important;
    font-weight: 600 !important;
}

/* --- Boutons Export --- */
.export-btn {
    flex: 1;
    min-width: 140px;
    padding: 10px 16px;
    background-color: var(--color-primary);
    color: white;
    border: none;
    border-radius: 6px;
    font-family: var(--font-primary);
    font-size: 0.9rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s ease;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.2);
}

.export-btn:hover {
    background-color: var(--color-primary-border);
    transform: translateY(-2px);
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.3);
}

.export-btn:active {
    transform: translateY(0);
}

.export-btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

@media (max-width: 900px) {
    .export-btn {
        min-width: 100px;
        padding: 8px 12px;
        font-size: 0.85rem;
    }
}