:root {
    --primary-teal: #1bcbb4;
    --primary-teal-dark: #139a88;
    --light-bg: #ffffff;
    --text-dark: #24292f;
    --text-muted: #57606a;
    --form-border: #d0d7de;
}

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

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background-color: var(--light-bg);
    color: var(--text-dark);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    min-height: 100vh;
    text-align: center;
    padding: 20px;
}

.container {
    max-width: 650px;
    width: 100%;
}

.logo {
    max-width: 450px;
    width: 100%;
    height: auto;
    margin-bottom: 40px;
}

h1 {
    font-size: 3rem;
    letter-spacing: 2px;
    margin-bottom: 20px;
    color: var(--primary-teal);
}

p.subtitle {
    font-size: 1.1rem;
    color: var(--text-muted);
    margin-bottom: 40px;
    line-height: 1.6;
}

.notify-form {
    display: flex;
    flex-direction: column;
    gap: 15px;
    max-width: 500px;
    margin: 0 auto;
    position: relative;
}

@media (min-width: 500px) {
    .notify-form {
        flex-direction: row;
        background: #f6f8fa;
        border: 1px solid var(--form-border);
        border-radius: 30px;
        padding: 5px;
    }
}

.hp-field {
    position: absolute;
    left: -9999px;
    width: 1px;
    height: 1px;
    overflow: hidden;
    opacity: 0;
    pointer-events: none;
}

input[type="email"] {
    padding: 15px 20px;
    border-radius: 30px;
    border: 1px solid var(--form-border);
    background: #ffffff;
    color: var(--text-dark);
    font-size: 1rem;
    width: 100%;
    outline: none;
}

@media (min-width: 500px) {
    input[type="email"] {
        border: none;
        background: transparent;
    }
}

input[type="email"]::placeholder {
    color: #8c959f;
}

button {
    padding: 15px 30px;
    border-radius: 30px;
    border: none;
    background-color: var(--primary-teal);
    color: #ffffff;
    font-weight: bold;
    font-size: 1rem;
    cursor: pointer;
    transition: background-color 0.3s ease, transform 0.1s ease;
    white-space: nowrap;
}

button:hover:not(:disabled) {
    background-color: #15a895;
    transform: scale(1.02);
}

button:disabled {
    opacity: 0.7;
    cursor: not-allowed;
}

.feedback-banner {
    max-width: 500px;
    margin: 16px auto 0;
    padding: 12px 18px;
    border-radius: 12px;
    font-size: 0.95rem;
    line-height: 1.4;
    display: none;
}

.feedback-banner.visible {
    display: block;
}

.feedback-banner.success {
    background-color: #ecfdf5;
    border: 1px solid #6ee7b7;
    color: #065f46;
}

.feedback-banner.error {
    background-color: #fef2f2;
    border: 1px solid #fca5a5;
    color: #991b1b;
}

.footer {
    margin-top: 60px;
    font-size: 0.9rem;
    color: var(--text-muted);
}

.footer p {
    margin-bottom: 10px;
}