/**
 * =========================================================================
 * FOOTER SUBSCRIBER SYSTEM - CSS STYLING
 * Modern, Responsive, Accessible Styles
 * =========================================================================
 */

/* ===== Subscribe Form Container ===== */
.subscribe-form {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
    width: 100%;
    max-width: 450px;
}

/* ===== Input Group (Input + Button) ===== */
.input-group {
    display: flex;
    align-items: center;
    gap: 0;
    position: relative;
    background: rgba(255, 255, 255, 0.08);
    border: 1.5px solid rgba(255, 255, 255, 0.2);
    border-radius: 12px;
    padding: 0;
    transition: all 0.35s cubic-bezier(0.25, 1, 0.5, 1);
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.2);
    overflow: hidden;
}

/* Hover effect on input group */
.input-group:hover {
    background: rgba(255, 255, 255, 0.1);
    border-color: rgba(255, 107, 0, 0.3);
    box-shadow: 0 6px 25px rgba(255, 107, 0, 0.15);
}

/* Focus effect on input group */
.input-group:has(.subscribe-input:focus) {
    background: rgba(255, 255, 255, 0.12);
    border-color: var(--color-primary);
    box-shadow: 0 8px 30px rgba(255, 107, 0, 0.25);
}

/* ===== Email Input ===== */
.subscribe-input {
    flex: 1;
    padding: 14px 18px;
    background: transparent;
    border: none;
    color: var(--color-text);
    font-size: 0.95rem;
    font-family: var(--font-base);
    outline: none;
    transition: all 0.35s cubic-bezier(0.25, 1, 0.5, 1);
    caret-color: var(--color-primary);
    letter-spacing: 0.3px;
}

.subscribe-input::placeholder {
    color: rgba(255, 255, 255, 0.5);
    transition: all 0.3s ease;
}

.subscribe-input:focus::placeholder {
    color: rgba(255, 255, 255, 0.7);
}

.subscribe-input:valid {
    color: var(--color-text);
}

/* Input validation states */
.subscribe-input.valid {
    color: #4ADE80;
}

.subscribe-input.error {
    color: #FF6B6B;
    animation: shake 0.4s ease-in-out;
}

@keyframes shake {
    0%, 100% { transform: translateX(0); }
    25% { transform: translateX(-4px); }
    75% { transform: translateX(4px); }
}

/* ===== Submit Button ===== */
.subscribe-button {
    padding: 14px 20px;
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-light) 100%);
    border: none;
    border-radius: 0 12px 12px 0;
    cursor: pointer;
    transition: all 0.35s cubic-bezier(0.25, 1, 0.5, 1);
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-weight: 600;
    box-shadow: 0 4px 15px rgba(255, 107, 0, 0.3);
    flex-shrink: 0;
    overflow: hidden;
    position: relative;
    transition: all 0.3s ease;
}

.subscribe-button:hover:not(:disabled) {
    background: linear-gradient(135deg, var(--color-primary-light) 0%, var(--color-primary) 100%);
    box-shadow: 0 6px 25px rgba(255, 107, 0, 0.4);
     transition: all 0.3s ease;
}

.subscribe-button:active:not(:disabled) {
    transform: translateY(0);
    box-shadow: 0 2px 10px rgba(255, 107, 0, 0.3);
}

.subscribe-button:disabled {
    opacity: 0.6;
    cursor: not-allowed;
}

.subscribe-button::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
    transition: left 0.5s ease;
}

.subscribe-button:hover::before:not(:disabled) {
    left: 100%;
}

/* ===== Submit Icon ===== */
.submit-icon {
    width: 20px;
    height: 20px;
    fill: currentColor;
    transition: all 0.3s ease;
}

.subscribe-button:hover .submit-icon:not(:disabled) {
    transform: translateX(3px);
}

/* Loading animation */
.submit-icon.loading {
    animation: spin 1s linear infinite;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

/* ===== Messages ===== */
.subscribe-message {
    padding: 12px 16px;
    border-radius: 8px;
    font-size: 0.9rem;
    font-weight: 500;
    letter-spacing: 0.3px;
    animation: slideIn 0.4s cubic-bezier(0.25, 1, 0.5, 1);
    display: flex;
    align-items: center;
    gap: 8px;
}

@keyframes slideIn {
    from {
        opacity: 0;
        transform: translateY(-10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Success Message */
.success-message {
    background: rgba(74, 222, 128, 0.15);
    border: 1px solid rgba(74, 222, 128, 0.4);
    color: #4ADE80;
    border-left: 4px solid #4ADE80;
}

/* Error Message */
.error-message {
    background: rgba(255, 107, 107, 0.15);
    border: 1px solid rgba(255, 107, 107, 0.4);
    color: #FF6B6B;
    border-left: 4px solid #FF6B6B;
}

/* ===== Responsive Design ===== */

/* Tablets (768px - 1024px) */
@media (max-width: 1024px) {
    .subscribe-form {
        max-width: 100%;
    }

    .subscribe-input {
        padding: 12px 16px;
        font-size: 0.9rem;
    }

    .subscribe-button {
        padding: 12px 18px;
    }

    .submit-icon {
        width: 18px;
        height: 18px;
    }
}

/* Mobile (480px - 768px) */
@media (max-width: 768px) {
    .input-group {
        flex-direction: column;
        gap: 0;
        border-radius: 12px;
        overflow: hidden;
    }

    .subscribe-input {
        width: 100%;
        border-radius: 12px 12px 0 0;
        padding: 12px 16px;
        border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    }

    .subscribe-button {
        width: 100%;
        border-radius: 0 0 12px 12px;
        padding: 12px 16px;
        justify-content: center;
    }

    .subscribe-button::before {
        display: none;
    }

    .subscribe-form {
        max-width: 100%;
    }

    .subscribe-message {
        padding: 10px 14px;
        font-size: 0.85rem;
    }
}

/* Small Mobile (320px - 480px) */
@media (max-width: 480px) {
    .subscribe-input {
        padding: 10px 14px;
        font-size: 0.85rem;
    }

    .subscribe-button {
        padding: 10px 14px;
    }

    .submit-icon {
        width: 16px;
        height: 16px;
    }

    .subscribe-message {
        padding: 8px 12px;
        font-size: 0.8rem;
    }

    .input-group {
        gap: 0;
        border-radius: 10px;
    }

    .subscribe-input,
    .subscribe-button {
        border-radius: 10px;
    }

    .input-group:has(.subscribe-input) .subscribe-input {
        border-radius: 10px 10px 0 0;
    }

    .subscribe-button {
        border-radius: 0 0 10px 10px;
    }
}

/* ===== Accessibility ===== */

/* High contrast mode */
@media (prefers-contrast: more) {
    .input-group {
        border-width: 2px;
    }

    .subscribe-button {
        font-weight: 700;
    }

    .subscribe-message {
        font-weight: 600;
        border-left-width: 5px;
    }
}

/* Reduced motion */
@media (prefers-reduced-motion: reduce) {
    .input-group,
    .subscribe-input,
    .subscribe-button,
    .subscribe-message,
    .submit-icon {
        transition: none;
        animation: none;
    }

    .subscribe-button:hover {
        transform: none;
    }

    @keyframes shake {
        0%, 100% { transform: none; }
    }
}

/* Dark mode (additional support for system preference) */
@media (prefers-color-scheme: dark) {
    .input-group {
        background: rgba(255, 255, 255, 0.06);
    }

    .subscribe-button {
        box-shadow: 0 4px 20px rgba(255, 107, 0, 0.25);
    }
}

/* Light mode (if needed) */
@media (prefers-color-scheme: light) {
    .input-group {
        background: rgba(0, 0, 0, 0.05);
        border-color: rgba(0, 0, 0, 0.15);
    }

    .subscribe-input::placeholder {
        color: rgba(0, 0, 0, 0.5);
    }

    .submit-icon {
        fill: white;
    }
}

/* ===== Tooltip/Helper Text ===== */
.subscribe-helper {
    font-size: 0.8rem;
    color: rgba(255, 255, 255, 0.6);
    margin-top: 0.5rem;
    text-align: center;
    letter-spacing: 0.2px;
}

.subscribe-helper a {
    color: var(--color-primary);
    text-decoration: none;
    border-bottom: 1px dotted var(--color-primary);
    transition: all 0.3s ease;
}

.subscribe-helper a:hover {
    color: var(--color-primary-light);
    border-bottom-color: var(--color-primary-light);
}

/* ===== Focus Visible (Keyboard Navigation) ===== */
.subscribe-input:focus-visible,
.subscribe-button:focus-visible {
    outline: 2px solid var(--color-primary);
    outline-offset: 2px;
}

/* ===== Print Styles ===== */
@media print {
    .subscribe-form {
        display: none;
    }
}