/* CSS Değişkenleri */
:root {
    /* Renkler */
    --trigger-button-bg: #b68d40;
    --trigger-button-hover-bg: #b68d40;
    --trigger-button-active-bg: #b68d40;
    --modal-bg: #FFFFFF;
    --modal-header-bg: #F8F9FA;
    --text-color-dark: #212529;
    --text-color-medium: #495057;
    --text-color-light: #000000;
    --text-color-white: #ffffff;
    --border-color: #b68d40;
    --error-color: #b68d40;
    --close-button-hover-color: #b68d40;
    --shadow-color: rgba(0, 0, 0, 0.075);
    --input-focus-color: var(--trigger-button-bg); /* Ana eylem rengi */
    --input-focus-shadow: color-mix(in srgb, var(--input-focus-color) 25%, transparent);
    --result-bg: #E9ECEF;
    --result-border-color: #CED4DA;
    --tooltip-bg: #343A40;
    --tooltip-text-color: #F8F9FA;
    --contact-btn-bg: var(--input-focus-color); /* İletişim butonu için ana renk */
    --contact-btn-text-color: var(--text-color-white);
    --contact-btn-hover-bg: color-mix(in srgb, var(--contact-btn-bg) 85%, black);


    /* Tipografi */
    --font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    --font-size-base: 0.875rem; /* 14px */
    --font-size-sm: 0.8125rem;  /* 13px */
    --font-size-xs: 0.75rem;    /* 12px */
    --font-size-header: 0.9375rem; /* 15px */

    /* Boşluklar */
    --spacing-xs: 4px;
    --spacing-sm: 8px;
    --spacing-md: 12px;
    --spacing-lg: 16px;

    /* Modal Pozisyonu */
    --modal-bottom-offset: 70px;
    --modal-side-offset: 15px;
    --modal-top-offset: 20px;

    /* Diğer */
    --border-radius-main: 0.3rem;
    --border-radius-sm: 0.25rem; /* Butonlar için biraz daha küçük */

    /* Geçişler */
    --transition-duration: 0.2s; /* Geçişleri biraz hızlandıralım */
    --transition-timing-function: ease-in-out; /* Daha standart bir geçiş */
}

/* Genel Stiller */
body {
    font-family: var(--font-family);
    margin: 0;
    color: var(--text-color-dark);
    background-color: #f4f7f6;
}

/* Hesaplama Menü Stilleri (çoğu aynı kalır) */
.calculator-menu {
    position: fixed;
    bottom: var(--modal-bottom-offset);
    left: var(--modal-side-offset);
    width: 250px;
    max-height: calc(100vh - var(--modal-bottom-offset) - var(--modal-top-offset));
    background-color: var(--modal-bg);
    box-shadow: 0 0.5rem 1rem var(--shadow-color);
    z-index: 1000;
    border-radius: var(--border-radius-main);
    transform: translateY(20px) scale(0.95);
    opacity: 0;
    visibility: hidden;
    transition-property: transform, opacity, visibility;
    transition-duration: var(--transition-duration);
    transition-timing-function: var(--transition-timing-function);
    border: 1px solid var(--border-color);
    display: flex;
    flex-direction: column;
    overflow: hidden;
}

.calculator-menu.active {
    transform: translateY(0) scale(1);
    opacity: 1;
    visibility: visible;
}

.calculator-header {
    padding: var(--spacing-md) var(--spacing-lg);
    border-bottom: 1px solid var(--border-color);
    background-color: var(--modal-header-bg);
    flex-shrink: 0;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.calculator-header h2 {
    margin: 0;
    font-size: var(--font-size-header);
    font-weight: 600;
    color: var(--text-color-dark);
}

.menu-close {
    font-size: 1.5rem;
    font-weight: 300;
    cursor: pointer;
    color: var(--text-color-medium);
    background: none;
    border: none;
    padding: 0 var(--spacing-xs);
    line-height: 1;
    transition: color var(--transition-duration) ease;
}

.menu-close:hover {
    color: var(--error-color);
}

.calculator-content {
    padding: var(--spacing-lg);
    overflow-y: auto;
    flex-grow: 1;
}

/* Form Stilleri (çoğu aynı kalır) */
.calculator-form {
    margin-top: 0;
}

.form-group {
    margin-bottom: var(--spacing-md);
}

.form-group label {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--spacing-sm);
    color: var(--text-color-medium);
    font-weight: 500;
    font-size: var(--font-size-sm);
    overflow-wrap: break-word;
    word-wrap: break-word;
    word-break: break-word;
}

.form-group label small {
    font-weight: normal;
    font-size: 0.9em;
    color: var(--text-color-light);
    margin-left: var(--spacing-xs);
}

.form-group input {
    width: 100%;
    padding: var(--spacing-sm) var(--spacing-md);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-sm);
    font-size: var(--font-size-base);
    color: var(--text-color-dark);
    background-color: var(--modal-bg);
    box-sizing: border-box;
    transition: border-color var(--transition-duration) ease, box-shadow var(--transition-duration) ease;
}

.form-group input:focus {
    outline: none;
    border-color: var(--input-focus-color);
    box-shadow: 0 0 0 0.2rem var(--input-focus-shadow);
}

.form-group.result-group input[readonly] {
    background-color: var(--result-bg);
    cursor: default;
    font-weight: 600;
    color: var(--text-color-dark);
    border-color: var(--result-border-color);
}
.form-group.result-group input[readonly]:focus {
    box-shadow: none;
    border-color: var(--result-border-color);
}

.error-message {
    display: block;
    color: var(--error-color);
    font-size: var(--font-size-xs);
    margin-top: var(--spacing-xs);
    font-weight: 500;
}

hr {
    border: none;
    border-top: 1px solid var(--border-color);
    margin: var(--spacing-md) 0;
}

/* Tooltip Stilleri (Aynı kalır) */
.tooltip-trigger {
    position: relative;
    cursor: help;
    color: var(--text-color-light);
    outline: none;
    margin-left: var(--spacing-sm);
    flex-shrink: 0;
}

.tooltip-trigger .fa-question-circle {
    font-size: 1em;
    vertical-align: middle;
}

.tooltip-trigger::before,
.tooltip-trigger::after {
    position: absolute;
    left: 50%;
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
    transition-property: opacity, transform, visibility;
    transition-duration: calc(var(--transition-duration) * 0.8);
    transition-timing-function: ease-out;
    z-index: 1001;
}

.tooltip-trigger::before {
    content: attr(data-tooltip);
    background-color: var(--tooltip-bg);
    color: var(--tooltip-text-color);
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: var(--border-radius-sm);
    font-size: var(--font-size-xs);
    font-weight: normal;
    line-height: 1.5;
    width: max-content;
    max-width: 220px;
    text-align: left;
    bottom: calc(100% + 8px);
    transform: translateX(-50%) translateY(var(--spacing-xs));
}

.tooltip-trigger::after {
    content: '';
    border-style: solid;
    border-width: 6px 6px 0 6px;
    border-color: var(--tooltip-bg) transparent transparent transparent;
    bottom: calc(100% + 2px);
    transform: translateX(-50%) translateY(var(--spacing-xs));
}

.tooltip-trigger:hover::before,
.tooltip-trigger:hover::after,
.tooltip-trigger:focus-visible::before,
.tooltip-trigger:focus-visible::after {
    opacity: 1;
    visibility: visible;
    transform: translateX(-50%) translateY(0);
}

/* Genel Buton Stili (Eğer .btn sınıfını kullanacaksak) */
.btn {
    display: inline-flex; /* Satır içi blok, içerik kadar yer kaplar ama padding vs alır */
    align-items: center;
    justify-content: center;
    gap: var(--spacing-xs); /* İkon ve metin arası */
    padding: var(--spacing-sm) var(--spacing-md);
    font-size: var(--font-size-sm); /* Bilgi alanındaki diğer metinlere göre biraz daha belirgin */
    font-weight: 500;
    text-align: center;
    text-decoration: none;
    white-space: nowrap; /* Uzun metinlerde butonun kırılmasını engeller */
    border-radius: var(--border-radius-sm);
    border: 1px solid transparent; /* Hover durumunda border eklenirse kaymayı engeller */
    cursor: pointer;
    transition: all var(--transition-duration) var(--transition-timing-function);
    user-select: none; /* Metnin seçilmesini engeller */
}
.btn i { /* İkonlar için dikey hizalama */
    line-height: 1;
    font-size: 0.9em; /* Metne göre biraz küçük */
}


/* Tetikleyici Buton */
.calculator-button {
    position: fixed;
    bottom: var(--spacing-lg);
    left: var(--spacing-lg);
    width: 56px;
    height: 56px;
    padding: 0;
    background: linear-gradient(135deg, #b68d40 0%, #e0c068 100%);
    color: var(--text-color-white);
    box-shadow: 0 0.5rem 1.5rem rgba(182, 141, 64, 0.35), 0 0 0 4px #fff3cd;
    border: 2px solid #b68d40;
    border-radius: 50%;
    font-size: 2rem;
    z-index: 999;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: 
        background 0.3s cubic-bezier(.68,-0.55,.27,1.55),
        box-shadow 0.3s cubic-bezier(.68,-0.55,.27,1.55),
        transform 0.2s;
    animation: pulse-calc-btn 1.5s infinite alternate;
}

.calculator-button:hover,
.calculator-button:focus {
    background: linear-gradient(135deg, #e0c068 0%, #b68d40 100%);
    color: #fff;
    box-shadow: 0 1.5rem 2.5rem rgba(182, 141, 64, 0.55), 0 0 0 8px #fff3cd;
    transform: scale(1.08);
    outline: none;
}

@media (max-width: 600px) {
    .calculator-button {
        left: 12%;
        bottom: 25px;
        transform: translateX(-50%);
        width: 63px;
        height: 63px;
        font-size: 1.5rem;
        box-shadow: 0 0.25rem 0.75rem rgba(182, 141, 64, 0.25), 0 0 0 2px #fff3cd;
        animation: pulse-calc-btn-mobile 1.5s infinite alternate;
    }
    @keyframes pulse-calc-btn-mobile {
        0% {
            box-shadow: 0 0.25rem 0.75rem rgba(182, 141, 64, 0.25), 0 0 0 2px #fff3cd;
            transform: translateX(-50%) scale(1);
        }
        100% {
            box-shadow: 0 0.5rem 1.2rem rgba(182, 141, 64, 0.35), 0 0 0 4px #fff3cd;
            transform: translateX(-50%) scale(1.03);
        }
    }
}
/* Bilgi Alanı */
.calculator-info {
    margin-top: var(--spacing-lg);
    padding-top: var(--spacing-md);
    border-top: 1px solid var(--border-color);
    font-size: var(--font-size-xs);
    color: var(--text-color-light);
    line-height: 1.6;
    text-align: left; /* Genel sola hizalama */
}

.calculator-info p {
    margin-bottom: var(--spacing-sm);
    overflow-wrap: break-word;
    word-wrap: break-word;
    word-break: break-word;
}
.calculator-info p:last-child {
    margin-bottom: 0;
    text-align: center; /* Son paragrafı (butonu içeren) ortala */
}

.calculator-info strong {
    color: var(--text-color-medium);
    font-weight: 600;
}

/* Yeni "Bize Ulaş" Buton Stili */
.btn-contact-us {
    background-color: var(--contact-btn-bg);
    color: var(--contact-btn-text-color);
    padding: var(--spacing-sm) var(--spacing-lg); /* Biraz daha geniş padding */
    display: inline-block; /* Paragraf içinde düzgün görünmesi için */
    margin-top: var(--spacing-xs); /* Üstteki metinle arasında boşluk */
}

.btn-contact-us:hover,
.btn-contact-us:focus {
    background-color: var(--contact-btn-hover-bg);
    color: var(--contact-btn-text-color); /* Hover'da metin rengi değişmesin */
    text-decoration: none; /* Alt çizgiyi kaldır */
    box-shadow: 0 2px 5px rgba(0,0,0,0.1); /* Hafif bir hover gölgesi */
    transform: translateY(-1px);
}
.btn-contact-us:focus {
    outline: 2px solid var(--input-focus-shadow);
    outline-offset: 2px;
}