/* styles.css */

/* Import Google Fonts */
@import url('https://fonts.googleapis.com/css2?family=Nunito:wght@400;600;700&display=swap');

/* ========== VARIABLES ========== */
:root {
    --base-padding: clamp(0.5rem, 2vw, 1.5rem);
    --base-radius: 1rem;
    --transition-fast: 0.2s ease-in-out;
    --transition-medium: 0.4s ease-in-out;
    --color-primary: #43cea2;
    --color-secondary: #185a9d;
    --color-error: #e53935;
    --overlay-bg: rgba(0, 0, 0, 0.4);
}

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

html {
    height: 100%;
    font-family: 'Nunito', sans-serif;
    -webkit-font-smoothing: antialiased;
}

body {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: url('https://www-cdn.firrincie.li/s-content/firri-link/backgrounds/background_19.webp') no-repeat center/cover;
    background-attachment: fixed;
    color: #222;
    line-height: 1.5;
    /* safe-area insets fallback */
    padding: constant(safe-area-inset-top) constant(safe-area-inset-right) constant(safe-area-inset-bottom) constant(safe-area-inset-left);
    padding: env(safe-area-inset-top) env(safe-area-inset-right) env(safe-area-inset-bottom) env(safe-area-inset-left);
    overscroll-behavior-y: none;
}

/* Inherit font on form elements */
input,
select,
button {
    font-family: inherit;
    font-size: inherit;
    line-height: inherit;
}

/* ========== CONTAINER (FROSTED GLASS EFFECT) ========== */
.container {
    width: 90%;
    max-width: 600px;
    min-height: 60vh;
    background: rgba(255, 255, 255, 0.5);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border: 1px solid rgba(255, 255, 255, 0.6);
    padding: calc(var(--base-padding) * 1.2) var(--base-padding) 2rem;
    border-radius: var(--base-radius);
    box-shadow: 0 12px 40px rgba(0, 0, 0, 0.25);
    display: flex;
    flex-direction: column;
    gap: var(--base-padding);
}

/* Form wrapper spacing */
.container form {
    display: flex;
    flex-direction: column;
    gap: var(--base-padding);
}

/* ========== TYPOGRAPHY ========== */
h1 {
    font-weight: 700;
    font-size: clamp(1.5rem, 4vw, 2.5rem);
    text-align: center;
    color: #333;
}

.message {
    color: var(--color-error);
    text-align: center;
}

/* ========= CONTAINER ========= */
.container {
    max-width: 600px;
    margin: 60px auto;
    background-color: rgba(255, 255, 255, 0.95);
    padding: 30px;
    border-radius: 16px;
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.2);
}

h1 {
    text-align: center;
    font-weight: 700;
    margin-bottom: 30px;
    color: #333;
}

/* ========= FORM ELEMENTS ========= */
label {
    font-weight: 600;
    display: block;
    margin: 20px 0 8px;
    text-align: center;
}

input[type="url"],
input[type="text"],
select {
    width: 100%;
    padding: 12px;
    border-radius: 10px;
    border: 1px solid #ccc;
    font-size: 16px;
    box-sizing: border-box;
    transition: border-color 0.3s ease, box-shadow 0.3s ease;
}

input:focus,
select:focus {
    border-color: #4caf50;
    outline: none;
    box-shadow: 0 0 5px rgba(76, 175, 80, 0.5);
}

/* ========== BUTTONS ========== */
.submit-btn {
    background: linear-gradient(to right, var(--color-primary), var(--color-secondary));
    color: #fff;
    border: none;
    border-radius: 999px;
    padding: 0.75rem 2.5rem;
    font-size: clamp(1rem, 2.5vw, 1.125rem);
    font-weight: 600;
    transition: transform var(--transition-fast), box-shadow var(--transition-fast);
    text-align: center;
    align-self: start;
}

.submit-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.15);
}

/* ========== SHORT LINK BOX ========== */
.short-link-box {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.5rem 1rem;
    border: 1px solid #ddd;
    border-radius: calc(var(--base-radius) / 1.5);
    background: #f5f5f5;
    flex-wrap: wrap;
}

.short-link-box input[type='text'] {
    flex: 1;
    min-width: 0;
    background: transparent;
    border: none;
    padding: 0;
    font-size: 1rem;
}

.copy-btn {
    background: var(--color-secondary);
    color: #fff;
    border: none;
    padding: 0.5rem 1rem;
    border-radius: 0.5rem;
    font-size: 0.875rem;
    transition: background var(--transition-fast);
}

.copy-btn:hover {
    background: #0d3b66;
}

/* ========== MENU & SIDEBAR ========== */
.menu-toggle {
    position: fixed;
    top: calc(var(--base-padding) + env(safe-area-inset-top));
    right: calc(var(--base-padding) + env(safe-area-inset-right));
    background: linear-gradient(135deg, var(--color-primary), var(--color-secondary));
    color: #fff;
    border: none;
    padding: 0.75rem 1rem;
    border-radius: 2rem;
    font-weight: 600;
    font-size: 1.125rem;
    z-index: 300;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.3);
    transition: transform var(--transition-fast);
    cursor: pointer;
}

.menu-toggle:hover {
    transform: scale(1.05);
}

.overlay {
    position: fixed;
    inset: 0;
    background: var(--overlay-bg);
    opacity: 0;
    visibility: hidden;
    transition: opacity var(--transition-medium), visibility var(--transition-medium);
    z-index: 250;
}

.overlay.active {
    opacity: 1;
    visibility: visible;
}

.sidebar {
    position: fixed;
    top: 0;
    right: -100%;
    width: 260px;
    height: 100vh;
    padding: 4rem 1.5rem 1.5rem;
    background: rgba(255, 255, 255, 0.98);
    box-shadow: -4px 0 20px rgba(0, 0, 0, 0.3);
    backdrop-filter: blur(10px);
    border-top-left-radius: var(--base-radius);
    border-bottom-left-radius: var(--base-radius);
    transition: right var(--transition-medium);
    z-index: 400;
}

.sidebar.open {
    right: 0;
}

.close-btn {
    position: absolute;
    top: 1rem;
    left: 1rem;
    background: none;
    border: none;
    font-size: 1.5rem;
    cursor: pointer;
    color: var(--color-secondary);
    transition: transform var(--transition-fast), color var(--transition-fast);
}

.close-btn:hover {
    transform: rotate(90deg) scale(1.1);
    color: #FF6E40;
}

.sidebar ul {
    list-style: none;
    margin: 2rem 0 0;
    padding: 0;
}

.sidebar li {
    margin-bottom: 1rem;
}

.sidebar a {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.5rem 1rem;
    border-radius: 0.5rem;
    text-decoration: none;
    font-weight: 600;
    font-size: 1rem;
    color: var(--color-secondary);
    transition: background var(--transition-fast), color var(--transition-fast);
}

.sidebar a:hover,
.sidebar a.active {
    background: #e6f0fa;
    color: #0d3b66;
}

/* ========== FOOTER ========== */
.footer {
    position: fixed;
    bottom: env(safe-area-inset-bottom);
    left: 0;
    width: 100%;
    background: linear-gradient(135deg, #264F3D 0%, #2C8FA3 50%, #FF6E40 100%);
    color: #fff;
    text-align: center;
    padding: 2rem 1rem;
    z-index: 100;
    transition: transform var(--transition-medium);
}

.footer.hidden {
    transform: translateY(100%);
}

.footer h2 {
    font-size: 1.375rem;
    margin-bottom: 0.5rem;
}

.footer p {
    font-size: 0.875rem;
}

.footer-links {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 0.75rem;
    margin: 1rem 0;
}

.footer-links a {
    color: #fff;
    text-decoration: none;
    font-size: 1rem;
    transition: color var(--transition-fast);
}

.footer-links a:hover {
    color: #000;
}

/* ========== BREAKPOINTS ========== */
@media (max-width: 768px) {
    .container {
        min-height: 55vh;
    }
    h1 {
        margin-bottom: 1.5rem;
    }
}

@media (max-width: 480px) {
    .footer {
        display: none;
    }
    #footerToggleBtn {
        display: block;
    }
    input,
    select {
        padding: 0.5rem;
        font-size: 0.9rem;
    }
    .submit-btn {
        padding: 0.5rem 1.5rem;
        font-size: 1rem;
    }
}

@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        transition: none !important;
        animation: none !important;
    }
}