@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700;800&display=swap');

:root {
    --login-green: #00ff00;
    --login-green-bright: #4aff4a;
    --login-green-dark: #1f9315;
    --login-black: #050505;
    --login-light-bg: #edf7ed;
    --login-light-text: #101510;
    --login-light-muted: #5f6b5f;
    --login-dark-text: #ffffff;
    --login-dark-muted: rgba(255, 255, 255, 0.68);
    --login-gradient: linear-gradient(135deg, var(--login-green) 0%, var(--login-green-bright) 50%, var(--login-green-dark) 100%);
}

* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
}

body {
    overflow-x: hidden;
}

#container {
    position: relative;
    min-height: 100vh;
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 32px 20px;
    overflow: hidden;
    background:
        radial-gradient(circle at 78% 18%, rgba(0, 255, 0, 0.22), transparent 34%),
        radial-gradient(circle at 16% 82%, rgba(31, 147, 21, 0.18), transparent 32%),
        linear-gradient(135deg, #f7fff7 0%, var(--login-light-bg) 54%, #d8f2d8 100%);
    transition: background 0.35s ease;
}

#container::before {
    content: '';
    position: absolute;
    inset: 0;
    pointer-events: none;
    opacity: 0.55;
    background-image:
        linear-gradient(rgba(31, 147, 21, 0.05) 1px, transparent 1px),
        linear-gradient(90deg, rgba(31, 147, 21, 0.05) 1px, transparent 1px);
    background-size: 42px 42px;
}

#container.dark-mode {
    background:
        radial-gradient(circle at 78% 18%, rgba(0, 255, 0, 0.14), transparent 32%),
        radial-gradient(circle at 14% 82%, rgba(31, 147, 21, 0.1), transparent 30%),
        linear-gradient(135deg, #020202 0%, #080b08 52%, #050505 100%);
}

#container.dark-mode::before {
    opacity: 0.38;
    background-image:
        linear-gradient(rgba(0, 255, 0, 0.04) 1px, transparent 1px),
        linear-gradient(90deg, rgba(0, 255, 0, 0.04) 1px, transparent 1px);
}

#container > div:first-child {
    display: none;
}

#login_form {
    position: relative;
    z-index: 1;
    width: 100%;
    max-width: 420px;
    margin-top: 0;
    display: flex;
    flex-direction: column;
    gap: 24px;
    padding: 34px 38px;
    color: var(--login-light-text);
    background: rgba(255, 255, 255, 0.96);
    border: 1px solid rgba(31, 147, 21, 0.2);
    border-radius: 18px;
    box-shadow: 0 22px 55px rgba(4, 35, 4, 0.18), 0 0 0 1px rgba(255, 255, 255, 0.8) inset;
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    transition: color 0.3s ease, background-color 0.3s ease, border-color 0.3s ease, box-shadow 0.3s ease;
}

#form_header {
    display: flex;
    align-items: center;
    justify-content: space-between;
}

#form_header h1 {
    position: relative;
    padding-bottom: 9px;
    color: inherit;
    font-size: 36px;
    font-weight: 800;
    letter-spacing: -0.04em;
}

#form_header h1::before {
    content: '';
    position: absolute;
    left: 0;
    bottom: 0;
    width: 48px;
    height: 4px;
    border-radius: 999px;
    background: var(--login-gradient);
    box-shadow: 0 0 14px rgba(0, 255, 0, 0.35);
}

#mode_toggle {
    width: 42px;
    height: 42px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    border: 1px solid rgba(31, 147, 21, 0.22);
    border-radius: 50%;
    color: #146c0d;
    background: rgba(0, 255, 0, 0.08);
    cursor: pointer;
    transition: transform 0.2s ease, color 0.2s ease, background-color 0.2s ease, border-color 0.2s ease, box-shadow 0.2s ease;
}

#mode_toggle:hover,
#mode_toggle:focus-visible {
    color: var(--login-black);
    background: var(--login-green);
    border-color: var(--login-green);
    box-shadow: 0 0 20px rgba(0, 255, 0, 0.3);
    transform: translateY(-2px);
    outline: none;
}

#mode_icon {
    font-size: 18px;
    cursor: pointer;
}

#mode_toggle #mode_icon {
    pointer-events: none;
}

#mode_icon[role='button']:focus-visible {
    outline: 2px solid var(--login-green-dark);
    outline-offset: 5px;
}

#social_media {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 22px;
}

#social_media a {
    width: 46px;
    height: 46px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border: 1px solid rgba(31, 147, 21, 0.18);
    border-radius: 50%;
    background: #ffffff;
    box-shadow: 0 7px 18px rgba(5, 30, 5, 0.08);
    transition: transform 0.2s ease, border-color 0.2s ease, box-shadow 0.2s ease;
}

#social_media a:hover,
#social_media a:focus-visible {
    border-color: var(--login-green-dark);
    box-shadow: 0 8px 22px rgba(0, 255, 0, 0.18);
    transform: translateY(-3px);
    outline: none;
}

#social_media img {
    width: 25px;
    height: 25px;
    object-fit: contain;
}

#login_form form {
    display: flex;
    flex-direction: column;
    gap: 18px;
}

#login_form form .mt-4 {
    margin-top: 0;
}

#login_form label,
#login_form .text-gray-600,
#login_form .text-gray-700 {
    color: var(--login-light-muted);
}

#login_form label {
    font-weight: 600;
}

#login_form input[type='email'],
#login_form input[type='password'],
#login_form input[type='text'] {
    width: 100%;
    min-height: 46px;
    margin-top: 6px;
    padding: 10px 13px;
    color: var(--login-light-text);
    background: #f7faf7;
    border: 1px solid #c9d8c9;
    border-radius: 9px;
    box-shadow: none;
    transition: background-color 0.2s ease, border-color 0.2s ease, box-shadow 0.2s ease;
}

#login_form input[type='email']:focus,
#login_form input[type='password']:focus,
#login_form input[type='text']:focus {
    border-color: var(--login-green-dark);
    background: #ffffff;
    box-shadow: 0 0 0 3px rgba(0, 255, 0, 0.15);
    outline: none;
}

#login_form input[type='checkbox'] {
    width: 17px;
    height: 17px;
    color: var(--login-green-dark);
    border-color: #9eb29e;
    border-radius: 4px;
}

#login_form input[type='checkbox']:checked {
    background-color: var(--login-green-dark);
}

#login_form a {
    color: #1b7414;
    font-weight: 600;
    text-decoration-color: rgba(31, 147, 21, 0.45);
    text-underline-offset: 3px;
    transition: color 0.2s ease;
}

#login_form a:hover,
#login_form a:focus-visible {
    color: #0d4c08;
    outline: none;
}

#login_button {
    min-height: 42px;
    padding: 9px 18px;
    border: 0;
    border-radius: 999px;
    color: var(--login-black);
    background: var(--login-gradient);
    box-shadow: 0 7px 20px rgba(0, 255, 0, 0.24);
    font-size: 15px;
    font-weight: 800;
    cursor: pointer;
    transition: transform 0.2s ease, box-shadow 0.2s ease, filter 0.2s ease;
}

#login_button:hover,
#login_button:focus-visible {
    filter: brightness(1.08);
    box-shadow: 0 10px 28px rgba(0, 255, 0, 0.34);
    transform: translateY(-2px);
    outline: none;
}

.dark#login_form {
    color: var(--login-dark-text);
    background: rgba(10, 10, 10, 0.96);
    border-color: rgba(0, 255, 0, 0.22);
    box-shadow: 0 24px 65px rgba(0, 0, 0, 0.62), 0 0 42px rgba(0, 255, 0, 0.08);
}

.dark#login_form #mode_toggle {
    color: var(--login-black);
    background: var(--login-green);
    border-color: var(--login-green);
    box-shadow: 0 0 20px rgba(0, 255, 0, 0.25);
}

.dark#login_form label,
.dark#login_form .text-gray-600,
.dark#login_form .text-gray-700 {
    color: var(--login-dark-muted);
}

.dark#login_form input[type='email'],
.dark#login_form input[type='password'],
.dark#login_form input[type='text'] {
    color: var(--login-dark-text);
    background: #111511;
    border-color: rgba(255, 255, 255, 0.14);
}

.dark#login_form input[type='email']:focus,
.dark#login_form input[type='password']:focus,
.dark#login_form input[type='text']:focus {
    background: #151a15;
    border-color: var(--login-green);
    box-shadow: 0 0 0 3px rgba(0, 255, 0, 0.16);
}

.dark#login_form input[type='checkbox'] {
    border-color: rgba(255, 255, 255, 0.35);
    background-color: #111511;
}

.dark#login_form input[type='checkbox']:checked {
    background-color: var(--login-green);
}

.dark#login_form a {
    color: var(--login-green-bright);
    text-decoration-color: rgba(74, 255, 74, 0.45);
}

.dark#login_form a:hover,
.dark#login_form a:focus-visible {
    color: var(--login-green);
}

.dark#login_form #social_media a {
    border-color: rgba(0, 255, 0, 0.18);
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.35);
}

@media (max-width: 520px) {
    #container {
        padding: 20px 14px;
    }

    #login_form {
        gap: 20px;
        padding: 28px 22px;
        border-radius: 15px;
    }

    #form_header h1 {
        font-size: 32px;
    }
}

@media (prefers-reduced-motion: reduce) {
    #container,
    #login_form,
    #login_form * {
        transition: none !important;
    }
}