/* ===== BASE RESET & VARIABLES ===== */
*,
*::before,
*::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --color-black: #111111;
    --color-white: #f5f5f5;
    --color-dark: #1a1a1a;
    --color-gray: #333333;
    --color-light-gray: #cccccc;
    --color-mid-gray: #888888;
    --color-accent: #e67021;
    --color-accent-dark: #7d3200;
    --color-success: #2e8b57;
    --color-error: #cc3333;
    --font-main: 'Cairo', sans-serif;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-main);
    background-color: #0d0d0d;
    color: var(--color-white);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    overflow-x: hidden;
    background-image:
        linear-gradient(rgba(255, 255, 255, 0.02) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255, 255, 255, 0.02) 1px, transparent 1px);
    background-size: 40px 40px;
}

/* ===== HEADER ===== */
.site-header {
    height: 120px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 32px;
    background-color: var(--color-dark);
    border-bottom: 2px solid var(--color-gray);
    position: relative;
}

.tutorial-link {
    position: absolute;
    left: 50%;
    top: 50%;
    transform: translate(-50%, -50%);
    background-color: var(--color-accent);
    color: var(--color-black);
    font-weight: 800;
    font-size: 18px;
    padding: 6px 20px;
    text-decoration: none;
    border: 2px solid var(--color-accent-dark);
    letter-spacing: 1px;
    box-shadow: 0 0 15px rgba(212, 160, 23, 0.3);
    animation: attentionShake 4s infinite;
    transition: background-color 0.2s, color 0.2s;
    z-index: 10;
}

.tutorial-link:hover {
    background-color: var(--color-accent-dark);
    color: var(--color-white);
    animation: none;
}

@keyframes attentionShake {

    0%,
    100% {
        transform: translate(-50%, -50%);
    }

    2% {
        transform: translate(calc(-50% - 3px), calc(-50% + 1px)) rotate(-2deg);
    }

    4% {
        transform: translate(calc(-50% + 3px), calc(-50% - 1px)) rotate(2deg);
    }

    6% {
        transform: translate(calc(-50% - 3px), calc(-50% + 1px)) rotate(-2deg);
    }

    8% {
        transform: translate(calc(-50% + 3px), calc(-50% - 1px)) rotate(2deg);
    }

    10% {
        transform: translate(-50%, -50%);
    }
}

.logo-link {
    display: flex;
    align-items: center;
    gap: 10px;
    text-decoration: none;
}

.logo-img {
    height: 150px;
    width: auto;
}

.site-name {
    font-size: 24px;
    font-weight: 900;
    color: var(--color-accent);
    letter-spacing: 2px;
}

.header-nav {
    display: flex;
    gap: 20px;
}

.nav-link {
    color: var(--color-mid-gray);
    text-decoration: none;
    font-weight: 600;
    font-size: 15px;
    padding: 6px 12px;
    border: 1px solid transparent;
    transition: all 0.2s ease;
}

.nav-link:hover {
    color: var(--color-accent);
    border-color: var(--color-accent);
}

/* ===== MAIN ===== */
.main-container {
    flex: 1;
    padding: 40px 24px 60px;
    max-width: 800px;
    margin: 0 auto;
    width: 100%;
}

.page-title {
    font-size: 36px;
    font-weight: 900;
    text-align: center;
    margin-bottom: 40px;
    letter-spacing: 1px;
    text-transform: uppercase;
}

.page-title::after {
    content: '';
    display: block;
    width: 60px;
    height: 4px;
    background-color: var(--color-accent);
    margin: 12px auto 0;
}

/* ===== FORM SECTION ===== */
.form-section {
    background-color: var(--color-dark);
    border: 2px solid var(--color-gray);
    padding: 32px;
}

.input-group {
    margin-bottom: 24px;
}

.input-label {
    display: block;
    font-size: 16px;
    font-weight: 700;
    margin-bottom: 8px;
    color: var(--color-accent);
}

.text-input {
    width: 100%;
    padding: 12px 16px;
    font-size: 16px;
    font-family: var(--font-main);
    background-color: #0d0d0d;
    color: var(--color-white);
    border: 2px solid var(--color-gray);
    outline: none;
    transition: border-color 0.2s ease;
}

.text-input:focus {
    border-color: var(--color-accent);
}

.text-input::placeholder {
    color: var(--color-mid-gray);
}

/* ===== METHODS RADIO BUTTONS ===== */
.methods-group {
    margin-bottom: 24px;
}

.group-label {
    display: block;
    font-size: 16px;
    font-weight: 700;
    margin-bottom: 12px;
    color: var(--color-accent);
}

.radios-container {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
}

.radio-item {
    display: flex;
    align-items: center;
    gap: 8px;
    cursor: pointer;
    padding: 10px 16px;
    border: 2px solid var(--color-gray);
    background-color: rgba(255, 255, 255, 0.03);
    transition: all 0.2s ease;
    user-select: none;
}

.radio-item:hover {
    border-color: var(--color-mid-gray);
}

.radio-item input[type="radio"] {
    display: none;
}

.radio-custom {
    width: 20px;
    height: 20px;
    border: 2px solid var(--color-mid-gray);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    transition: all 0.2s ease;
}

.radio-item input[type="radio"]:checked+.radio-custom {
    border-color: var(--color-accent);
}

.radio-item input[type="radio"]:checked+.radio-custom::after {
    content: '';
    width: 10px;
    height: 10px;
    background-color: var(--color-accent);
}

.radio-item input[type="radio"]:checked~.radio-text {
    color: var(--color-accent);
    font-weight: 700;
}

.radio-text {
    font-size: 15px;
    color: var(--color-light-gray);
    font-weight: 600;
}

/* ===== AFFINE INPUTS ===== */
.affine-inputs {
    display: flex;
    gap: 20px;
    margin-top: 8px;
}

.affine-field {
    display: flex;
    align-items: center;
    gap: 10px;
}

.affine-field label {
    font-size: 18px;
    font-weight: 800;
    color: var(--color-accent);
    min-width: 20px;
}

.small-input {
    width: 100px;
}

.hint-text {
    display: block;
    margin-top: 8px;
    font-size: 12px;
    color: var(--color-mid-gray);
}

/* ===== SUBMIT BUTTON ===== */
.submit-btn {
    width: 100%;
    padding: 14px;
    font-size: 20px;
    font-weight: 800;
    font-family: var(--font-main);
    background-color: var(--color-accent);
    color: var(--color-black);
    border: 2px solid var(--color-accent-dark);
    cursor: pointer;
    letter-spacing: 2px;
    text-transform: uppercase;
    transition: all 0.2s ease;
    margin-top: 8px;
}

.submit-btn:hover {
    background-color: var(--color-accent-dark);
    color: var(--color-white);
}

.submit-btn:active {
    transform: scale(0.98);
}

/* ===== HIDDEN ===== */
.hidden {
    display: none !important;
}

/* ===== RESULTS SECTION ===== */
.results-section {
    margin-top: 40px;
    border: 2px solid var(--color-gray);
    background-color: var(--color-dark);
    padding: 32px;
}

.results-title {
    font-size: 24px;
    font-weight: 800;
    margin-bottom: 24px;
    color: var(--color-accent);
    text-align: center;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.result-card {
    border: 2px solid var(--color-gray);
    padding: 20px;
    margin-bottom: 16px;
    background-color: rgba(0, 0, 0, 0.3);
}

.result-card:last-child {
    margin-bottom: 0;
}

.result-method {
    font-size: 16px;
    font-weight: 700;
    color: var(--color-accent);
    margin-bottom: 6px;
    text-transform: uppercase;
    letter-spacing: 1px;
    border-bottom: 1px solid var(--color-gray);
    padding-bottom: 8px;
}

.result-original {
    font-size: 14px;
    color: var(--color-mid-gray);
    margin-bottom: 8px;
}

.result-output {
    font-size: 24px;
    font-weight: 900;
    color: var(--color-white);
    letter-spacing: 3px;
    word-break: break-all;
    background: linear-gradient(90deg, var(--color-accent), #f0c040);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.result-output-wrapper {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: 12px;
}

.copy-btn {
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 8px 16px;
    font-family: var(--font-main);
    font-size: 14px;
    font-weight: 700;
    background-color: transparent;
    color: var(--color-accent);
    border: 2px solid var(--color-accent);
    cursor: pointer;
    transition: all 0.2s ease;
    white-space: nowrap;
    flex-shrink: 0;
}

.copy-btn:hover {
    background-color: var(--color-accent);
    color: var(--color-black);
}

.copy-btn:hover svg {
    stroke: var(--color-black);
}

.copy-btn:active {
    transform: scale(0.95);
}

.copy-btn.copied {
    background-color: var(--color-success);
    border-color: var(--color-success);
    color: var(--color-white);
}

.copy-btn.copied svg {
    stroke: var(--color-white);
}

.result-error {
    color: var(--color-error);
    font-weight: 700;
    font-size: 14px;
}

/* ===== FOOTER ===== */
.site-footer {
    background-color: var(--color-dark);
    border-top: 2px solid var(--color-gray);
    padding: 20px 32px;
    text-align: center;
}

.footer-content {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 10px;
}

.footer-rights,
.footer-sponsor {
    font-size: 14px;
    color: var(--color-mid-gray);
}

.footer-sponsor {
    display: flex;
    align-items: center;
    gap: 8px;
}

.swm-footer-link {
    display: flex;
    align-items: center;
    gap: 6px;
    text-decoration: none;
    color: var(--color-accent);
    font-weight: 700;
    transition: opacity 0.2s ease;
}

.swm-footer-link:hover {
    opacity: 0.8;
}

.swm-footer-logo {
    height: 32px;
    width: auto;
}

.footer-link {
    color: var(--color-accent);
    text-decoration: none;
    font-weight: 700;
    border-bottom: 1px solid transparent;
    transition: border-color 0.2s ease;
}

.footer-link:hover {
    border-bottom-color: var(--color-accent);
}

/* ===== RESPONSIVE ===== */
@media (max-width: 700px) {
    .page-title {
        font-size: 26px;
    }

    .form-section {
        padding: 20px 16px;
    }

    .radios-container {
        flex-direction: column;
    }

    .site-header {
        padding: 10px 16px;
    }

    .tutorial-link {
        font-size: 14px;
        padding: 4px 12px;
    }

    .logo-img {
        height: 110px;
    }

    .site-name {
        font-size: 18px;
    }

    .swm-footer-logo {
        height: 24px;
    }

    .header-nav {
        gap: 10px;
    }

    .nav-link {
        font-size: 13px;
        padding: 4px 8px;
    }

    .affine-inputs {
        flex-direction: column;
        gap: 12px;
    }

    .result-output {
        font-size: 18px;
    }
}