/* ============================================================
   BUTTONS — Tüm buton stilleri
   ============================================================ */

/* -------------------------------------------------------
   BASE BUTON
   ------------------------------------------------------- */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-2);
    font-family: var(--font-body);
    font-size: var(--fs-base);
    font-weight: var(--fw-semibold);
    line-height: 1;
    padding: 0.875rem 1.75rem;
    border-radius: var(--radius-full);
    border: 2px solid transparent;
    cursor: pointer;
    transition:
        background-color var(--transition-base),
        color            var(--transition-base),
        border-color     var(--transition-base),
        box-shadow       var(--transition-base),
        transform        var(--transition-fast);
    white-space: nowrap;
    text-decoration: none;
}

.btn:hover {
    transform: translateY(-2px);
}

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

/* -------------------------------------------------------
   PRIMARY BUTON — Ana CTA
   ------------------------------------------------------- */
.btn-primary {
    background-color: var(--color-primary);
    color: var(--color-white);
    border-color: var(--color-primary);
    box-shadow: 0 4px 16px rgba(11, 95, 190, 0.30);
}

.btn-primary:hover {
    background-color: var(--color-primary-dark);
    border-color: var(--color-primary-dark);
    box-shadow: 0 8px 24px rgba(11, 95, 190, 0.40);
}

/* -------------------------------------------------------
   SECONDARY / OUTLINE BUTON
   ------------------------------------------------------- */
.btn-outline {
    background-color: transparent;
    color: var(--color-primary);
    border-color: var(--color-primary);
}

.btn-outline:hover {
    background-color: var(--color-primary);
    color: var(--color-white);
    box-shadow: var(--shadow-md);
}

/* Beyaz zemin üzerinde outline */
.btn-outline-white {
    background-color: transparent;
    color: var(--color-white);
    border-color: var(--color-white);
}

.btn-outline-white:hover {
    background-color: var(--color-white);
    color: var(--color-primary);
}

/* -------------------------------------------------------
   ACCENT BUTON — Yeşil vurgu
   ------------------------------------------------------- */
.btn-accent {
    background-color: var(--color-accent);
    color: var(--color-white);
    border-color: var(--color-accent);
    box-shadow: 0 4px 16px rgba(37, 197, 133, 0.30);
}

.btn-accent:hover {
    background-color: var(--color-accent-dark);
    border-color: var(--color-accent-dark);
    box-shadow: 0 8px 24px rgba(37, 197, 133, 0.40);
}

/* -------------------------------------------------------
   WHATSAPP BUTONU
   ------------------------------------------------------- */
.btn-whatsapp {
    background-color: var(--color-whatsapp);
    color: var(--color-white);
    border-color: var(--color-whatsapp);
    box-shadow: 0 4px 16px rgba(37, 211, 102, 0.35);
    font-weight: var(--fw-bold);
}

.btn-whatsapp:hover {
    background-color: var(--color-whatsapp-dark);
    border-color: var(--color-whatsapp-dark);
    box-shadow: 0 8px 24px rgba(37, 211, 102, 0.45);
}

.btn-whatsapp svg,
.btn-whatsapp img {
    width: 20px;
    height: 20px;
}

/* -------------------------------------------------------
   TELEFON / ARA BUTONU
   ------------------------------------------------------- */
.btn-call {
    background-color: var(--color-primary);
    color: var(--color-white);
    border-color: var(--color-primary);
    box-shadow: 0 4px 16px rgba(11, 95, 190, 0.30);
    font-weight: var(--fw-bold);
}

.btn-call:hover {
    background-color: var(--color-primary-dark);
    box-shadow: 0 8px 24px rgba(11, 95, 190, 0.40);
}

.btn-call svg,
.btn-call img {
    width: 20px;
    height: 20px;
}

/* -------------------------------------------------------
   BUTON BOYUTLARI
   ------------------------------------------------------- */
.btn-sm {
    font-size: var(--fs-sm);
    padding: 0.625rem 1.25rem;
}

.btn-lg {
    font-size: var(--fs-md);
    padding: 1.125rem 2.25rem;
}

.btn-block {
    width: 100%;
}

/* -------------------------------------------------------
   MOBİL STICKY BAR — WhatsApp & Ara
   Tüm sayfalarda footer üstünde sabit görünür
   ------------------------------------------------------- */
.sticky-mobile-bar {
    display: none; /* Masaüstünde gizli */
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    z-index: var(--z-sticky);
    background-color: var(--color-white);
    box-shadow: 0 -4px 20px rgba(11, 95, 190, 0.15);
    padding: var(--space-3) var(--space-4);
}

.sticky-mobile-bar__inner {
    display: flex;
    gap: var(--space-3);
}

.sticky-mobile-bar .btn {
    flex: 1;
    padding: 0.75rem 1rem;
    font-size: var(--fs-sm);
    border-radius: var(--radius-md);
}

@media (max-width: 768px) {
    .sticky-mobile-bar {
        display: block;
    }
}
/* -------------------------------------------------------
   BUTON LOADING STATE
   ------------------------------------------------------- */
.btn .btn-text {
    display: inline-flex;
    align-items: center;
    gap: var(--space-2);
}

.btn .btn-loading {
    display: none;
    align-items: center;
    gap: var(--space-2);
}

.btn.is-loading .btn-text {
    display: none;
}

.btn.is-loading .btn-loading {
    display: inline-flex;
}

.btn-spinner {
    width: 18px;
    height: 18px;
    border: 2px solid rgba(255, 255, 255, 0.35);
    border-top-color: #fff;
    border-radius: 50%;
    animation: btn-spin 0.7s linear infinite;
    flex-shrink: 0;
}

@keyframes btn-spin {
    to { transform: rotate(360deg); }
}

/* -------------------------------------------------------
   FORM SUBMIT ALANI
   ------------------------------------------------------- */
.form-submit {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--space-4);
    flex-wrap: wrap;
    margin-top: var(--space-2);
}

.form-submit-note {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    font-size: var(--fs-sm);
    color: var(--color-text-muted);
    flex: 1;
    min-width: 200px;
}

.form-submit-note svg {
    width: 18px;
    height: 18px;
    flex-shrink: 0;
    color: var(--color-primary);
}

.form-submit .btn {
    flex-shrink: 0;
}

@media (max-width: 480px) {
    .form-submit {
        flex-direction: column;
        align-items: stretch;
    }
    .form-submit .btn {
        width: 100%;
    }
}