/* RESET E BASE */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    -webkit-tap-highlight-color: transparent;
}

:root {
    --primary-red: #c4170c;
    --accent-red: #ff3c32;
    --primary-green: #28a745;
    --accent-green: #218838;
    --text-primary: #1f1f1f;
    --text-secondary: #5f6368;
    --font-family: 'Arial', sans-serif;
}

body {
    background-color: rgba(0,0,0,0.75);
    font-family: var(--font-family);
    color: var(--text-primary);
    display: flex;
    flex-direction: column;
    align-items: center;
    min-height: 100vh;
    line-height: 1.7;
    -webkit-font-smoothing: antialiased;
}

/* MODAL */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0,0,0,0.75);
    display: none;
    justify-content: center;
    align-items: flex-end;
    z-index: 9999;
    backdrop-filter: blur(5px);
    padding: 0;
}

.modal-support {
    background-color: white;
    width: 100%;
    max-width: 520px;
    padding: 28px 16px 24px;
    border-radius: 24px 24px 0 0;
    text-align: center;
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    box-shadow: 0 -10px 40px rgba(0,0,0,0.25);
    display: none;
    flex-direction: column;
    align-items: center;
    z-index: 9999;
    animation: slideUp 0.35s cubic-bezier(0.175, 0.885, 0.32, 1.275);
}

@keyframes slideUp {
    from { transform: translateY(100%); }
    to { transform: translateY(0); }
}

.support-title {
    font-family: var(--font-family);
    font-size: 20px;
    color: var(--primary-red);
    margin-bottom: 10px;
    font-weight: 900;
}

.support-subtitle {
    font-size: 17px;
    color: #3c4043;
    margin-bottom: 24px;
    font-weight: 600;
}

.price-btn {
    width: 100%;
    padding: 16px 14px;
    border: 3px solid var(--primary-green);
    border-radius: 16px;
    background: linear-gradient(135deg, #e8fff0, #ffffff);
    font-size: 16px;
    font-weight: 900;
    color: var(--primary-green);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    margin-bottom: 20px;
}

.btn-contribute {
    width: 100%;
    background: linear-gradient(180deg, #28a745 0%, #218838 100%);
    color: white;
    border: none;
    padding: 20px;
    border-radius: 50px;
    font-size: 16px;
    font-weight: 900;
    cursor: pointer;
    box-shadow: 0 8px 30px rgba(40,167,69,0.5);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-bottom: 16px;
}

.support-footer {
    width: 100%;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 10px;
}

.already-contributes {
    color: #1a73e8;
    font-size: 15px;
    text-decoration: none;
    font-weight: 800;
}