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

body {
    font-family: 'Poppins', sans-serif;
    color: #f5f5f5;
    background: linear-gradient(135deg, #1a1a1a 0%, #0d0d0d 100%);
    line-height: 1.6;
    overflow-x: hidden;
}

/* ========== NAVBAR ========== */
nav {
    position: fixed;
    top: 0;
    width: 100%;
    background: rgba(10, 10, 10, 0.95);
    backdrop-filter: blur(10px);
    padding: 1.5rem 5%;
    display: flex;
    justify-content: space-between;
    align-items: center;
    z-index: 1000;
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

.logo {
    font-size: 1.8rem;
    font-weight: 700;
    color: #f5f5f5;
    font-family: 'Montserrat', sans-serif;
    letter-spacing: 0.5px;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.logo i {
    color: #FFD700;
}

.logo span {
    color: #FFD700;
    text-shadow: 0 0 20px rgba(255, 215, 0, 0.3);
}

.nav-links {
    display: flex;
    gap: 2.5rem;
    list-style: none;
}

.nav-links a {
    color: #f5f5f5;
    text-decoration: none;
    font-weight: 500;
    transition: all 0.3s ease;
    position: relative;
}

.nav-links a:hover {
    color: #FFD700;
}

.nav-links a::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background: #FFD700;
    transition: width 0.3s ease;
}

.nav-links a:hover::after {
    width: 100%;
}

/* BURGER MENU */
.burger-menu {
    display: none;
    flex-direction: column;
    background: none;
    border: none;
    cursor: pointer;
    padding: 0.5rem;
    gap: 0.35rem;
}

.burger-menu span {
    width: 25px;
    height: 3px;
    background: #f5f5f5;
    border-radius: 2px;
    transition: all 0.3s ease;
}

.burger-menu.active span:nth-child(1) {
    transform: rotate(45deg) translate(10px, 10px);
}

.burger-menu.active span:nth-child(2) {
    opacity: 0;
}

.burger-menu.active span:nth-child(3) {
    transform: rotate(-45deg) translate(8px, -8px);
}

/* ========== RENTAL HEADER ========== */
.rental-header {
    padding-top: 10rem;
    padding-bottom: 2rem;
    text-align: center;
    background: linear-gradient(135deg, rgba(26, 26, 26, 0.5) 0%, rgba(13, 13, 13, 0.5) 100%);
}

.rental-header h1 {
    font-size: 2.8rem;
    font-weight: 900;
    margin-bottom: 0.8rem;
    color: #f5f5f5;
    font-family: 'Montserrat', sans-serif;
}

.rental-header h1 span {
    color: #FFD700;
    text-shadow: 0 0 25px rgba(255, 215, 0, 0.3);
}

.rental-header p {
    font-size: 1rem;
    color: #d0d0d0;
    max-width: 600px;
    margin: 0 auto;
}

/* ========== MAIN RENTAL CONTAINER ========== */
.rental-main-container {
    padding: 4rem 5%;
    max-width: 1400px;
    margin: 0 auto;
}

.rental-wrapper {
    display: grid;
    grid-template-columns: 1fr 380px;
    gap: 3rem;
    align-items: flex-start;
}

/* ========== RENTAL FORM SECTION ========== */
.rental-form-section {
    background: rgba(26, 26, 26, 0.7);
    border: 1px solid rgba(255, 215, 0, 0.1);
    border-radius: 20px;
    padding: 3rem;
    backdrop-filter: blur(10px);
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.3);
}

.rental-form {
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

/* Form Section */
.form-section {
    padding: 2rem;
    background: rgba(13, 13, 13, 0.5);
    border: 1px solid rgba(255, 215, 0, 0.05);
    border-radius: 15px;
    transition: all 0.3s ease;
}

.form-section:hover {
    border-color: rgba(255, 215, 0, 0.15);
    background: rgba(13, 13, 13, 0.7);
}

.form-section-title {
    font-size: 1.2rem;
    font-weight: 700;
    color: #FFD700;
    margin-bottom: 1.5rem;
    display: flex;
    align-items: center;
    gap: 0.8rem;
    font-family: 'Montserrat', sans-serif;
}

.form-section-title i {
    font-size: 1.4rem;
}

/* Form Groups */
.form-group {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    margin-bottom: 1rem;
}

.form-group:last-child {
    margin-bottom: 0;
}

.form-group label {
    font-size: 0.95rem;
    font-weight: 600;
    color: #f5f5f5;
}

.required {
    color: #FFD700;
    font-weight: 700;
}

.optional {
    color: #b0b0b0;
    font-size: 0.85rem;
    font-weight: 400;
}

.form-group input,
.form-group select {
    padding: 0.9rem 1.2rem;
    background: rgba(255, 255, 255, 0.12);
    border: 2px solid rgba(255, 215, 0, 0.3);
    border-radius: 10px;
    color: #ffffff;
    font-family: 'Poppins', sans-serif;
    font-size: 0.95rem;
    transition: all 0.3s ease;
}

.form-group input:focus,
.form-group select:focus {
    outline: none;
    background: rgba(255, 255, 255, 0.15);
    border-color: #FFD700;
    box-shadow: 0 0 15px rgba(255, 215, 0, 0.3);
}

.form-group input::placeholder {
    color: #a0a0a0;
}

.form-group select {
    cursor: pointer;
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%23FFD700' d='M6 9L1 4h10z'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 1rem center;
    padding-right: 2.5rem;
}

.form-group select option {
    background: #1a1a1a;
    color: #f5f5f5;
}

/* Form Row */
.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1.5rem;
}

/* Service Info */
.service-info {
    background: rgba(255, 215, 0, 0.05);
    border-left: 3px solid #FFD700;
    padding: 1rem;
    border-radius: 8px;
    margin-top: 0.5rem;
    min-height: 50px;
    display: flex;
    align-items: center;
}

.service-info p {
    font-size: 0.9rem;
    color: #d0d0d0;
    margin: 0;
}

/* Submit Button */
.btn-submit {
    padding: 1rem 2rem;
    background: linear-gradient(135deg, #FFD700 0%, #FFC700 100%);
    color: #000;
    border: none;
    border-radius: 12px;
    font-size: 1rem;
    font-weight: 700;
    font-family: 'Montserrat', sans-serif;
    cursor: pointer;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.8rem;
    margin-top: 1rem;
}

.btn-submit:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 30px rgba(255, 215, 0, 0.4);
}

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

/* ========== CALCULATOR SIDEBAR ========== */
.calculator-sidebar {
    position: sticky;
    top: 100px;
}

.calculator-card {
    background: rgba(26, 26, 26, 0.7);
    border: 1px solid rgba(255, 215, 0, 0.1);
    border-radius: 20px;
    padding: 2rem;
    backdrop-filter: blur(10px);
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.3);
    transition: all 0.3s ease;
}

.calculator-card:hover {
    border-color: rgba(255, 215, 0, 0.2);
    box-shadow: 0 12px 40px rgba(255, 215, 0, 0.2);
}

.calculator-title {
    font-size: 1.3rem;
    font-weight: 700;
    color: #FFD700;
    margin-bottom: 1.5rem;
    display: flex;
    align-items: center;
    gap: 0.8rem;
    font-family: 'Montserrat', sans-serif;
}

.calculator-title i {
    font-size: 1.5rem;
}

.calculator-content {
    display: flex;
    flex-direction: column;
    gap: 0.8rem;
}

/* Calc Item */
.calc-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0.8rem 0;
    font-size: 0.9rem;
}

.calc-label {
    color: #d0d0d0;
    font-weight: 500;
}

.calc-value {
    color: #f5f5f5;
    font-weight: 600;
    font-family: 'Courier New', monospace;
}

.calc-item.subtotal,
.calc-item.grand-total {
    padding: 1rem 0;
}

.calc-item.subtotal {
    background: rgba(255, 215, 0, 0.05);
    padding: 1rem;
    border-radius: 8px;
    margin-bottom: 0.5rem;
}

.calc-item.subtotal .calc-label {
    color: #f5f5f5;
    font-weight: 700;
}

.calc-item.grand-total {
    background: linear-gradient(135deg, rgba(255, 215, 0, 0.1) 0%, rgba(255, 199, 0, 0.05) 100%);
    padding: 1.2rem;
    border-radius: 12px;
    border: 1px solid rgba(255, 215, 0, 0.2);
    margin-top: 0.5rem;
}

.calc-item.grand-total .calc-label {
    color: #FFD700;
    font-weight: 700;
    font-size: 1rem;
}

.calc-item.grand-total .calc-value {
    color: #FFD700;
    font-size: 1.2rem;
    font-weight: 700;
}

/* Divider */
.calc-divider {
    height: 1px;
    background: linear-gradient(to right, transparent, rgba(255, 215, 0, 0.2), transparent);
    margin: 0.8rem 0;
}

/* Calculator Note */
.calculator-note {
    font-size: 0.8rem;
    color: #b0b0b0;
    background: rgba(255, 215, 0, 0.03);
    padding: 0.8rem;
    border-radius: 8px;
    margin-top: 1rem;
    display: flex;
    align-items: flex-start;
    gap: 0.5rem;
}

.calculator-note i {
    color: #FFD700;
    flex-shrink: 0;
    margin-top: 2px;
}

/* ========== WHATSAPP BUTTON ========== */
.whatsapp-float {
    position: fixed;
    bottom: 30px;
    right: 20px;
    width: 65px;
    height: 65px;
    background: linear-gradient(135deg, #FFD700 0%, #FFC700 100%);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #000;
    font-size: 2rem;
    z-index: 100;
    text-decoration: none;
    box-shadow: 0 10px 35px rgba(255, 215, 0, 0.4);
    animation: float-bounce 3s ease-in-out infinite;
    transition: all 0.3s ease;
}

.whatsapp-float:hover {
    transform: scale(1.15) translateY(-5px);
    box-shadow: 0 15px 50px rgba(255, 215, 0, 0.6);
}

@keyframes float-bounce {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-10px); }
}

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

/* Tablet */
@media (max-width: 1024px) {
    .rental-wrapper {
        grid-template-columns: 1fr;
    }

    .calculator-sidebar {
        position: static;
        order: -1;
    }

    .rental-header h1 {
        font-size: 2.2rem;
    }

    .rental-form-section {
        padding: 2rem;
    }

    .form-row {
        grid-template-columns: 1fr;
    }
}

/* Mobile */
@media (max-width: 768px) {
    nav {
        padding: 1rem 3%;
    }

    .logo {
        font-size: 1rem;
    }

    .logo i {
        font-size: 1.2rem;
    }

    .nav-links {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background: rgba(10, 10, 10, 0.98);
        flex-direction: column;
        gap: 0.5rem;
        padding: 1.5rem 3%;
        z-index: 999;
        border-bottom: 1px solid rgba(255, 215, 0, 0.1);
    }

    .nav-links.active {
        display: flex;
    }

    .nav-links a {
        padding: 0.8rem 0;
        font-size: 0.9rem;
    }

    .burger-menu {
        display: flex;
    }

    .rental-header {
        padding-top: 8rem;
        padding-bottom: 1.5rem;
    }

    .rental-header h1 {
        font-size: 1.8rem;
    }

    .rental-header p {
        font-size: 0.9rem;
    }

    .rental-main-container {
        padding: 2rem 3%;
    }

    .rental-form-section {
        padding: 1.5rem;
        border-radius: 15px;
    }

    .form-section {
        padding: 1.5rem;
    }

    .form-section-title {
        font-size: 1.1rem;
    }

    .calculator-card {
        padding: 1.5rem;
        border-radius: 15px;
    }

    .calculator-title {
        font-size: 1.1rem;
    }

    .calc-item {
        font-size: 0.85rem;
    }

    .btn-submit {
        padding: 0.8rem 1.5rem;
        font-size: 0.95rem;
    }

    .form-row {
        grid-template-columns: 1fr;
    }
}

/* Small Mobile */
@media (max-width: 480px) {
    .rental-header h1 {
        font-size: 1.4rem;
    }

    .rental-form-section {
        padding: 1rem;
    }

    .form-section {
        padding: 1rem;
    }

    .calculator-card {
        padding: 1rem;
    }

    .whatsapp-float {
        width: 55px;
        height: 55px;
        font-size: 1.6rem;
        bottom: 20px;
        right: 15px;
    }
}