/* ============================================
   UNIFIED MODERN STYLESHEET FOR MOTEL OFFICE SITE
   ============================================ */

:root {
    --color-primary: #00A8A8;
    --color-primary-light: #20D4D4;
    --color-secondary: #D60060;
    --color-secondary-light: #E63B80;
    --color-background-dark: #0a0e27;
    --color-background-darker: #1a1a2e;
    --color-surface: rgba(0, 168, 168, 0.05);
    --color-surface-hover: rgba(0, 168, 168, 0.08);
    --color-border: rgba(32, 212, 212, 0.4);
    --color-border-hover: rgba(32, 212, 212, 0.8);
    --color-text-primary: #f5f5f5;
    --color-text-secondary: #00A8A8;
    --color-error: #ff6b6b;
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.2);
    --shadow-md: 0 8px 24px rgba(0, 168, 168, 0.15);
    --shadow-lg: 0 20px 60px rgba(0, 168, 168, 0.2);
    --transition: all 0.3s ease;
}

/* ============== RESET & BASE STYLES ============== */

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

html, body {
    height: 100%;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', 'Oxygen', 'Ubuntu', 'Cantarell', sans-serif;
    background: linear-gradient(135deg, var(--color-background-dark) 0%, var(--color-background-darker) 100%);
    color: var(--color-text-primary);
    font-weight: 400;
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* ============== TYPOGRAPHY ============== */

h1, h2, h3, h4, h5, h6 {
    font-weight: 700;
    letter-spacing: -0.02em;
    margin-bottom: 1rem;
}

h1 {
    color: var(--color-text-primary);
    font-size: 2.5rem;
    text-align: center;
    text-shadow: 0 2px 8px rgba(0, 0, 0, 0.2);
    margin-bottom: 10px;
}

h2 {
    font-size: 2rem;
    color: var(--color-text-primary);
}

h3 {
    font-size: 1.2rem;
    color: #00A8A8;
    text-transform: uppercase;
    letter-spacing: 1px;
}

p, li {
    font-size: 1rem;
    line-height: 1.6;
}

a {
    color: #4FFBFF;
    text-decoration: none;
    transition: var(--transition);
}

a:hover {
    color: #4FFBFF;
    text-decoration: underline;
    text-decoration-thickness: 2px;
    text-underline-offset: 4px;
}

/* ============== CONTAINER & LAYOUT ============== */

.container {
    max-width: 600px;
    width: 100%;
    margin: 0 auto;
    padding: 40px 20px;
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-secondary) 100%);
    border-radius: 16px;
    box-shadow: var(--shadow-lg), 0 8px 24px rgba(0, 168, 168, 0.15);
    transition: var(--transition);
    margin-bottom: 30px;
    backdrop-filter: blur(10px);
    border: none;
    display: flex;
    flex-wrap: wrap;
    justify-content: space-evenly;
    align-items: center;
    gap: 15px;
}

.container:hover {
    transform: translateY(-4px);
    box-shadow: 0 24px 72px rgba(0, 168, 168, 0.25), 0 12px 32px rgba(214, 0, 96, 0.2);
}

main {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    min-height: 100vh;
    padding: 20px;
}

.sidebar {
    display: flex;
    flex-direction: column;
    gap: 20px;
    max-width: 300px;
    padding: 20px;
}

.content {
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 20px;
}

@media (max-width: 768px) {
    h1 {
        font-size: 1.8rem;
    }
    
    .container {
        padding: 30px 15px;
        margin-bottom: 20px;
    }
}

/* ============== LOGO & BRANDING ============== */

.logo {
    width: 100px;
    height: 100px;
    border-radius: 50%;
    border: none;
    background: radial-gradient(ellipse at 25% 25%, #6b6b6b, #2a2a2a 35%, #000000 70%);
    margin-bottom: 24px;
    margin-top: 20px;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.5), inset -12px -12px 24px rgba(0, 0, 0, 1), inset 6px 6px 12px rgba(255, 255, 255, 0.15);
    transition: var(--transition);
    animation: flame 2s ease-in-out infinite;
    object-fit: cover;
    object-position: center;
    overflow: hidden;
}

img.logo {
    width: 130px !important;
    height: 130px !important;
    object-fit: cover;
}

img.logo.flame-effect {
    width: 130px !important;
    height: 130px !important;
    object-fit: cover;
}

.logo:hover {
    transform: scale(1.05);
}

.logo-link {
    display: flex;
    justify-content: center;
    align-items: center;
}

.logo-link img {
    width: 100%;
    height: 100%;
    border-radius: 50%;
}

@keyframes flame {
    0% {
        box-shadow: 0 0 15px rgba(0, 168, 168, 0.4), inset 0 0 20px rgba(0, 168, 168, 0.1);
    }
    50% {
        box-shadow: 0 0 30px rgba(32, 212, 212, 0.8), inset 0 0 25px rgba(32, 212, 212, 0.2);
    }
    100% {
        box-shadow: 0 0 15px rgba(0, 168, 168, 0.4), inset 0 0 20px rgba(0, 168, 168, 0.1);
    }
}

/* ============== BUTTONS & INPUTS ============== */

button, input[type="submit"], input[type="button"] {
    width: 95%;
    padding: 12px 16px;
    margin: 10px 0;
    border: none;
    border-radius: 8px;
    font-size: 1rem;
    font-weight: 600;
    transition: var(--transition);
    cursor: pointer;
    background: linear-gradient(135deg, var(--color-primary) 0%, #D60060 100%);
    color: #ffffff;
    box-shadow: 0 4px 16px rgba(0, 168, 168, 0.3);
}

button:hover,
input[type="submit"]:hover,
input[type="button"]:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 24px rgba(0, 168, 168, 0.4);
    background: linear-gradient(135deg, var(--color-primary-light) 0%, #D60060 100%);
}

button:active,
input[type="submit"]:active,
input[type="button"]:active {
    transform: translateY(0);
    box-shadow: 0 2px 8px rgba(0, 168, 168, 0.3);
}

button:disabled {
    opacity: 0.5;
    cursor: not-allowed;
    transform: none;
}

input[type="text"],
input[type="password"],
input[type="email"],
input[type="number"],
input[type="file"],
textarea,
select {
    width: 95%;
    padding: 12px 16px;
    margin: 10px 0;
    border: 1px solid var(--color-border);
    border-radius: 8px;
    font-size: 1rem;
    background-color: var(--color-surface);
    color: var(--color-text-primary);
    transition: var(--transition);
    font-family: inherit;
}

input[type="text"]:focus,
input[type="password"]:focus,
input[type="email"]:focus,
input[type="number"]:focus,
input[type="file"]:focus,
textarea:focus,
select:focus {
    outline: none;
    border-color: var(--color-border-hover);
    background-color: var(--color-surface-hover);
    box-shadow: 0 0 0 3px rgba(32, 212, 212, 0.1);
}

textarea {
    resize: vertical;
    min-height: 120px;
    font-family: 'Courier New', monospace;
}

label {
    display: block;
    margin-bottom: 8px;
    font-weight: 500;
    color: var(--color-text-primary);
}

input::placeholder,
textarea::placeholder,
select::placeholder {
    color: #a0a0a0;
    opacity: 1;
}

input::-ms-input-placeholder,
textarea::-ms-input-placeholder {
    color: #a0a0a0;
}

input::-webkit-input-placeholder,
textarea::-webkit-input-placeholder {
    color: #a0a0a0;
}

/* ============== MENU & NAVIGATION ============== */

.menu {
    display: flex;
    gap: 40px;
    background: linear-gradient(135deg, rgba(0, 168, 168, 0.3) 0%, rgba(214, 0, 96, 0.3) 100%);
    padding: 16px 125px;
    border-radius: 16px;
    border: none;
    white-space: nowrap;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.3);
    backdrop-filter: blur(10px);
    transition: var(--transition);
    flex-wrap: wrap;
    justify-content: center;
}

.menu:hover {
    background: linear-gradient(135deg, rgba(32, 212, 212, 0.4) 0%, rgba(214, 0, 96, 0.4) 100%);
}

nav {
    width: 100%;
    text-align: center;
    margin-top: 20px;
}

.CMbutton {
    flex: 1;
    width: auto !important;
    padding: 10px 20px !important;
    margin: 0 10px !important;
    background: linear-gradient(135deg, var(--color-primary) 0%, #D60060 100%) !important;
    color: #ffffff !important;
    border: none !important;
    border-radius: 8px !important;
    font-weight: 600 !important;
    cursor: pointer !important;
    transition: var(--transition) !important;
    box-shadow: 0 4px 16px rgba(0, 168, 168, 0.3) !important;
}

.CMbutton:hover {
    transform: translateY(-2px) !important;
    box-shadow: 0 8px 24px rgba(0, 168, 168, 0.4) !important;
}

.container > .CMbutton {
    flex: 1;
    min-width: 120px;
    text-align: center;
}

/* ============== TOOLS MENU & SIDEBAR ============== */

.tools-menu-toggle {
    position: fixed;
    top: 20px;
    right: 20px;
    width: 56px;
    height: 56px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--color-secondary) 0%, var(--color-primary) 100%);
    border: 1px solid black;
    color: #ffffff;
    font-size: 1.5rem;
    cursor: pointer;
    box-shadow: 0 4px 16px rgba(0, 168, 168, 0.3);
    transition: var(--transition);
    z-index: 999;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 600;
}

.tools-menu-toggle:hover {
    transform: scale(1.1);
    box-shadow: 0 8px 24px rgba(0, 168, 168, 0.4);
}

.tools-menu-toggle:active {
    transform: scale(0.95);
}

.tools-menu {
    position: fixed;
    top: 0;
    right: 0;
    width: 280px;
    height: 100vh;
    background: linear-gradient(135deg, rgba(20, 20, 40, 0.98) 0%, rgba(30, 30, 50, 0.98) 100%);
    backdrop-filter: blur(10px);
    box-shadow: -8px 0 32px rgba(0, 0, 0, 0.5);
    padding: 20px;
    box-sizing: border-box;
    z-index: 1000;
    transform: translateX(100%);
    transition: var(--transition);
    overflow-y: auto;
    border-left: 3px solid black;
}

.tools-menu.active {
    transform: translateX(0);
}

.tools-menu-close {
    position: absolute;
    top: 20px;
    right: 20px;
    width: 40px;
    height: 40px;
    border: none;
    background: rgba(255, 255, 255, 0.1);
    color: var(--color-text-primary);
    font-size: 1.5rem;
    border-radius: 8px;
    cursor: pointer;
    transition: var(--transition);
}

.tools-menu-close:hover {
    background: rgba(0, 168, 168, 0.2);
    color: var(--color-text-secondary);
}

.tools-menu h3 {
    color: var(--color-text-secondary);
    margin-top: 60px;
    margin-bottom: 20px;
}

.tool-menu-item {
    width: 100%;
    display: block;
    padding: 14px 16px;
    margin: 10px 0;
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: 8px;
    color: var(--color-text-primary);
    font-size: 1rem;
    font-weight: 500;
    cursor: pointer;
    transition: var(--transition);
    text-align: left;
}

.tool-menu-item:hover:not(:disabled) {
    background: rgba(0, 168, 168, 0.1);
    border-color: var(--color-border-hover);
    color: var(--color-text-secondary);
    transform: translateX(-4px);
}

.tool-menu-item:active:not(:disabled) {
    transform: translateX(-2px);
}

.tool-menu-item:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

.tools-menu-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0);
    z-index: 999;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.3s ease;
}

.tools-menu-overlay.active {
    background: rgba(0, 0, 0, 0.5);
    opacity: 1;
    pointer-events: all;
}

/* ============== CALCULATOR POP-OUT ============== */

.calculator-window {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 320px;
    background: linear-gradient(135deg, #1a1a2e 0%, #16213e 100%);
    border: 2px solid var(--color-border);
    border-radius: 16px;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.6), 0 0 40px rgba(0, 168, 168, 0.2);
    z-index: 1100;
    transform: scale(0.8) translateY(50px);
    opacity: 0;
    pointer-events: none;
    transition: all 0.3s cubic-bezier(0.34, 1.56, 0.64, 1);
    overflow: hidden;
}

.calculator-window.active {
    transform: scale(1) translateY(0);
    opacity: 1;
    pointer-events: all;
}

.calculator-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    background: linear-gradient(135deg, rgba(0, 168, 168, 0.1), rgba(214, 0, 96, 0.1));
    border-bottom: 1px solid var(--color-border);
    padding: 16px 20px;
}

.calculator-header h2 {
    color: var(--color-text-secondary);
    margin: 0;
    font-size: 1.1rem;
    font-weight: 600;
    letter-spacing: 0.5px;
}

.calculator-close {
    width: 32px;
    height: 32px;
    border: none;
    background: rgba(255, 255, 255, 0.1);
    color: var(--color-text-primary);
    border-radius: 6px;
    font-size: 1.2rem;
    cursor: pointer;
    transition: var(--transition);
    display: flex;
    align-items: center;
    justify-content: center;
}

.calculator-close:hover {
    background: rgba(0, 168, 168, 0.2);
    color: var(--color-text-secondary);
}

.calculator-body {
    padding: 20px;
}

.calc-display {
    background: linear-gradient(135deg, rgba(0, 0, 0, 0.5), rgba(10, 10, 20, 0.8));
    color: var(--color-text-secondary);
    font-size: 1.8rem;
    font-weight: 500;
    padding: 16px;
    border-radius: 8px;
    text-align: right;
    margin-bottom: 16px;
    border: 1px solid var(--color-border);
    word-wrap: break-word;
    word-break: break-all;
    min-height: 50px;
    display: flex;
    align-items: center;
    justify-content: flex-end;
    font-family: 'Courier New', monospace;
    letter-spacing: 1px;
}

.calc-error {
    color: var(--color-error);
    font-size: 0.85rem;
    margin-bottom: 10px;
    text-align: center;
    min-height: 20px;
}

.calc-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 8px;
    margin-bottom: 16px;
}

.calc-btn {
    padding: 14px 0;
    border: 1px solid var(--color-border);
    border-radius: 8px;
    background: var(--color-surface);
    color: var(--color-text-primary);
    font-size: 1.1rem;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
}

.calc-btn:hover {
    background: rgba(0, 168, 168, 0.1);
    border-color: var(--color-border-hover);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0, 168, 168, 0.2);
}

.calc-btn:active {
    transform: translateY(0);
    background: rgba(0, 168, 168, 0.15);
}

.calc-op {
    background: rgba(0, 168, 168, 0.15);
    border-color: rgba(0, 168, 168, 0.3);
    color: var(--color-text-secondary);
}

.calc-op:hover {
    background: rgba(0, 168, 168, 0.25);
    border-color: rgba(0, 168, 168, 0.5);
}

.calc-function {
    background: rgba(214, 0, 96, 0.15);
    border-color: rgba(214, 0, 96, 0.3);
    color: #E63B80;
    font-size: 1rem;
}

.calc-function:hover {
    background: rgba(214, 0, 96, 0.25);
    border-color: rgba(214, 0, 96, 0.5);
}

.calc-equals {
    background: linear-gradient(135deg, rgba(0, 168, 168, 0.3), rgba(214, 0, 96, 0.3));
    border-color: rgba(0, 168, 168, 0.5);
    color: var(--color-text-secondary);
    grid-column: 3 / 5;
}

.calc-equals:hover {
    background: linear-gradient(135deg, rgba(0, 168, 168, 0.5), rgba(214, 0, 96, 0.5));
}

.calc-zero {
    grid-column: 1 / 3;
}

.copy-result-btn {
    width: 100%;
    padding: 12px;
    background: linear-gradient(135deg, var(--color-primary) 0%, #D60060 100%);
    color: #ffffff;
    border: none;
    border-radius: 8px;
    font-size: 0.95rem;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
}

.copy-result-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 16px rgba(0, 168, 168, 0.3);
}

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

.calculator-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0);
    z-index: 1099;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.3s ease;
}

.calculator-overlay.active {
    background: rgba(0, 0, 0, 0.3);
    opacity: 1;
    pointer-events: all;
}

/* ============== UTILITY CLASSES ============== */

.results {
    margin-top: 20px;
}

.download-link {
    display: none;
    margin-top: 10px;
}

.external-link {
    display: block;
    margin: 20px;
    text-align: center;
    font-size: 1rem;
    color: #4FFBFF;
    text-decoration: none;
    font-weight: 500;
    transition: var(--transition);
}

.external-link:hover {
    color: #E63B80;
    text-decoration: underline;
    text-decoration-thickness: 2px;
    text-underline-offset: 4px;
}

.links-container {
    display: flex;
    justify-content: space-around;
    margin: 20px 0;
    flex-wrap: wrap;
}

.positioned-link {
    margin: 0 10px;
    display: inline-block;
}

.positioned-link.left-align {
    position: absolute;
    bottom: 10px;
    left: 0px;
    margin: 0;
}

/* ============== LOGIN & FORMS ============== */

.login-container {
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-secondary) 100%);
    padding: 40px 30px;
    border-radius: 16px;
    box-shadow: var(--shadow-lg);
    width: 100%;
    max-width: 400px;
    margin: 0 auto;
}

.login-container h2 {
    text-align: center;
    margin-bottom: 30px;
    color: var(--color-text-primary);
}

.input-group {
    margin-bottom: 20px;
}

.input-group label {
    display: block;
    margin-bottom: 8px;
    font-weight: 500;
    color: var(--color-text-primary);
}

.input-group input {
    width: 100%;
    padding: 12px;
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: 8px;
    background-color: rgba(255, 255, 255, 0.05);
    color: var(--color-text-primary);
    font-size: 1rem;
    transition: var(--transition);
}

.input-group input:focus {
    outline: none;
    border-color: var(--color-border-hover);
    background-color: var(--color-surface-hover);
    box-shadow: 0 0 0 3px rgba(0, 168, 168, 0.1);
}

/* ============== MODAL & DIALOG ============== */

.modal-content {
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-secondary) 100%);
    padding: 30px;
    border-radius: 16px;
    box-shadow: var(--shadow-lg);
    max-width: 400px;
    margin: 0 auto;
    position: fixed;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    z-index: 2000;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 15px;
}

.modal-content label {
    display: block;
    margin-bottom: 15px;
    font-weight: 500;
    color: var(--color-text-primary);
    grid-column: 1 / -1;
}

.modal-content input {
    width: 100%;
    padding: 12px;
    margin-bottom: 15px;
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: 8px;
    background-color: rgba(255, 255, 255, 0.05);
    color: var(--color-text-primary);
    box-sizing: border-box;
    grid-column: 1 / -1;
}

.modal-content button {
    padding: 10px 20px;
    margin-top: 15px;
}

.modal-content button:first-of-type {
    margin-right: 0;
}

/* ============== FOOTER ============== */

footer {
    margin-top: 40px;
    text-align: center;
    padding: 20px;
    border-top: 1px solid var(--color-border);
    color: var(--color-text-primary);
}

.footer {
    text-align: center;
    padding: 20px;
    color: var(--color-text-primary);
}

.social-links {
    display: flex;
    justify-content: center;
    gap: 20px;
    margin-bottom: 15px;
}

.social-links a img {
    height: 30px;
    width: 30px;
    transition: var(--transition);
    filter: brightness(0) invert(1);
}

.social-links a:hover img {
    filter: brightness(0) invert(1) drop-shadow(0 0 8px rgba(255, 170, 136, 0.8));
}

/* ============== GRID & FLEX LAYOUTS ============== */

.grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 20px;
}

.pane {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: 8px;
    padding: 20px;
    display: flex;
    flex-direction: column;
}

.pane-head {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 15px;
    padding-bottom: 15px;
    border-bottom: 1px solid var(--color-border);
}

@media (max-width: 768px) {
    .grid {
        grid-template-columns: 1fr;
    }
    
    .menu {
        padding: 16px 20px;
        gap: 10px;
    }
}

/* ============== ANIMATION & TRANSITIONS ============== */

@keyframes slideIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes fadeIn {
    from {
        opacity: 0;
    }
    to {
        opacity: 1;
    }
}

.animate-slide-in {
    animation: slideIn 0.3s ease;
}

.animate-fade-in {
    animation: fadeIn 0.3s ease;
}

/* ============== RESPONSIVE DESIGN ============== */

@media (max-width: 480px) {
    h1 {
        font-size: 1.5rem;
    }
    
    .container {
        padding: 20px 15px;
    }
    
    button,
    input[type="text"],
    input[type="password"],
    input[type="email"],
    input[type="number"],
    input[type="file"],
    textarea,
    select {
        width: 100%;
    }
    
    .menu {
        gap: 10px;
        padding: 12px;
    }
    
    .links-container {
        flex-direction: column;
        align-items: center;
    }
    
    .calculator-window {
        width: 90vw;
        bottom: 50%;
        right: 50%;
        transform: translate(50%, 50%);
    }
    
    .calculator-window.active {
        transform: translate(50%, 50%);
    }
    
    .tools-menu {
        width: 100%;
    }
}

/* ============== ACCESSIBILITY ============== */

:focus-visible {
    outline: 2px solid var(--color-primary);
    outline-offset: 2px;
}

.visually-hidden {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border-width: 0;
}

/* Print styles */
@media print {
    body {
        background: white;
    }
    
    .container,
    .tools-menu-toggle,
    .tools-menu,
    .calculator-window {
        box-shadow: none;
    }
}