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

:root {
    --green: #7CB342;
    --green-dark: #4a7c2f;
    --green-deep: #2d5016;
    --cream: #f4f7f2;
    --border: #e5e7eb;
    --text: #1a1a1a;
    --muted: #6b7280;
}

body {
    font-family: 'Poppins', sans-serif;
    background: var(--cream);
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 1.5rem;
}

.card {
    background: #fff;
    border-radius: 24px;
    border: 1px solid var(--border);
    box-shadow: 0 8px 40px rgba(45, 80, 22, 0.08);
    width: 100%;
    max-width: 420px;
    overflow: hidden;
}

.card-top {
    background: linear-gradient(135deg, var(--green-deep), var(--green-dark));
    padding: 2rem 2rem 1.6rem;
    text-align: center;
}

.logo-mark {
    width: 52px;
    height: 52px;
    background: rgba(255, 255, 255, 0.15);
    border-radius: 14px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1rem;
    font-size: 1.4rem;
    color: #fff;
}

.card-top h1 {
    color: #fff;
    font-size: 1.2rem;
    font-weight: 700;
    line-height: 1.2;
}

.card-top p {
    color: rgba(255, 255, 255, 0.6);
    font-size: 0.78rem;
    margin-top: 0.3rem;
}

.card-body {
    padding: 2rem;
}

.field {
    margin-bottom: 1.2rem;
}

label {
    display: block;
    font-size: 0.72rem;
    font-weight: 700;
    color: var(--green-deep);
    margin-bottom: 0.4rem;
    letter-spacing: 0.3px;
    text-transform: uppercase;
}

.input-wrap {
    position: relative;
}

.input-wrap i {
    position: absolute;
    left: 0.9rem;
    top: 50%;
    transform: translateY(-50%);
    color: var(--muted);
    font-size: 0.85rem;
}

input[type=email],
input[type=password] {
    width: 100%;
    padding: 0.7rem 0.9rem 0.7rem 2.5rem;
    border: 2px solid var(--border);
    border-radius: 12px;
    font-family: 'Poppins', sans-serif;
    font-size: 0.85rem;
    color: var(--text);
    background: #fafcfa;
    transition: border-color 0.2s, box-shadow 0.2s;
}

input:focus {
    outline: none;
    border-color: var(--green);
    box-shadow: 0 0 0 3px rgba(124, 179, 66, 0.15);
}

.btn {
    width: 100%;
    padding: 0.8rem;
    background: var(--green);
    border: none;
    border-radius: 12px;
    color: #fff;
    font-family: 'Poppins', sans-serif;
    font-size: 0.88rem;
    font-weight: 700;
    cursor: pointer;
    transition: background 0.2s, transform 0.15s;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    margin-top: 0.4rem;
}

.btn:hover {
    background: var(--green-dark);
    transform: translateY(-1px);
}

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

.btn:disabled {
    opacity: 0.6;
    cursor: not-allowed;
    transform: none;
}

.error-msg {
    background: #fef2f2;
    border: 1px solid #fecaca;
    color: #dc2626;
    border-radius: 10px;
    padding: 0.7rem 1rem;
    font-size: 0.78rem;
    margin-bottom: 1.2rem;
    display: none;
    align-items: center;
    gap: 0.5rem;
}

.error-msg.show {
    display: flex;
}

.back-link {
    display: block;
    text-align: center;
    margin-top: 1.4rem;
    font-size: 0.75rem;
    color: var(--muted);
    text-decoration: none;
}

.back-link:hover {
    color: var(--green-deep);
}

.spinner {
    width: 16px;
    height: 16px;
    border: 2px solid rgba(255, 255, 255, 0.4);
    border-top-color: #fff;
    border-radius: 50%;
    animation: spin 0.7s linear infinite;
    display: none;
}

.btn.loading .spinner {
    display: block;
}

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

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