/* ===========================
   GENEL DEĞİŞKENLER & RESET
   =========================== */
:root {
    --primary: #2E7D32;
    --primary-dark: #1B5E20;
    --secondary: #558B2F;
    --accent: #81C784;
    --bg-light: #F5F5F5;
    --bg-white: #FFFFFF;
    --text-dark: #212121;
    --text-gray: #616161;
    --text-light: #9E9E9E;
    --font-heading: 'Playfair Display', serif;
    --font-body: 'Inter', sans-serif;
    --shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
    --shadow-hover: 0 8px 30px rgba(0, 0, 0, 0.15);
    --transition: all 0.3s ease;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-body);
    color: var(--text-dark);
    line-height: 1.7;
    overflow-x: hidden;
}

h1, h2, h3, h4 {
    font-family: var(--font-heading);
}

a {
    text-decoration: none;
    color: inherit;
    transition: var(--transition);
}

img {
    max-width: 100%;
    height: auto;
}

.section-padding {
    padding: 100px 0;
}

/* ===========================
   SECTION HEADER
   =========================== */
.section-header h2 {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--primary-dark);
    margin-bottom: 15px;
}

.section-divider {
    width: 60px;
    height: 4px;
    background: linear-gradient(to right, var(--primary), var(--accent));
    margin: 0 auto;
    border-radius: 2px;
}

.divider-light {
    background: linear-gradient(to right, var(--accent), #fff);
}

/* ===========================
   NAVBAR
   =========================== */
#mainNavbar {
    padding: 15px 0;
    transition: var(--transition);
    background: transparent;
    z-index: 1000;
}

#mainNavbar.scrolled {
    background: rgba(27, 94, 32, 0.95);
    backdrop-filter: blur(10px);
    padding: 10px 0;
    box-shadow: 0 2px 20px rgba(0, 0, 0, 0.2);
}

.navbar-brand {
    font-family: var(--font-heading);
    font-size: 1.5rem;
    font-weight: 700;
    color: #fff !important;
}

.navbar-brand i {
    color: var(--accent);
    margin-right: 8px;
}

.navbar-nav .nav-link {
    color: rgba(255, 255, 255, 0.85) !important;
    font-weight: 500;
    font-size: 0.95rem;
    padding: 8px 15px !important;
    transition: var(--transition);
    position: relative;
}

.navbar-nav .nav-link:hover,
.navbar-nav .nav-link.active {
    color: #fff !important;
}

.navbar-nav .nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 15px;
    right: 15px;
    height: 2px;
    background: var(--accent);
    transform: scaleX(0);
    transition: transform 0.3s ease;
}

.navbar-nav .nav-link:hover::after,
.navbar-nav .nav-link.active::after {
    transform: scaleX(1);
}

.navbar-toggler {
    border: 2px solid rgba(255, 255, 255, 0.5);
    padding: 6px 10px;
}

.navbar-toggler-icon {
    background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 30 30'%3e%3cpath stroke='rgba%28255, 255, 255, 0.85%29' stroke-linecap='round' stroke-miterlimit='10' stroke-width='2' d='M4 7h22M4 15h22M4 23h22'/%3e%3c/svg%3e");
}

/* Dil Değiştirme */
.lang-switcher {
    display: flex;
    gap: 5px;
}

.btn-lang {
    color: rgba(255, 255, 255, 0.7);
    border: 1px solid rgba(255, 255, 255, 0.3);
    padding: 4px 12px;
    font-size: 0.85rem;
    font-weight: 600;
    border-radius: 4px;
    transition: var(--transition);
}

.btn-lang:hover,
.btn-lang.active {
    background: var(--accent);
    color: var(--primary-dark);
    border-color: var(--accent);
}

/* ===========================
   HERO SLIDER
   =========================== */
#hero {
    height: 100vh;
    min-height: 600px;
}

.heroSwiper {
    height: 100%;
}

.hero-slide {
    height: 100vh;
    min-height: 600px;
    background-size: cover;
    background-position: center;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
}

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, rgba(27, 94, 32, 0.7) 0%, rgba(46, 125, 50, 0.5) 50%, rgba(0, 0, 0, 0.4) 100%);
}

.hero-content {
    position: relative;
    z-index: 2;
    text-align: center;
    color: #fff;
    padding: 0 20px;
}

.hero-content h2 {
    font-size: 1.2rem;
    font-family: var(--font-body);
    font-weight: 300;
    letter-spacing: 4px;
    text-transform: uppercase;
    margin-bottom: 15px;
    opacity: 0;
    transform: translateY(30px);
    animation: fadeInUp 0.8s ease forwards 0.3s;
}

.hero-content h1 {
    font-size: 3.5rem;
    font-weight: 700;
    margin-bottom: 20px;
    opacity: 0;
    transform: translateY(30px);
    animation: fadeInUp 0.8s ease forwards 0.5s;
}

.hero-content p {
    font-size: 1.2rem;
    margin-bottom: 30px;
    opacity: 0;
    transform: translateY(30px);
    animation: fadeInUp 0.8s ease forwards 0.7s;
}

.btn-hero {
    display: inline-block;
    background: var(--accent);
    color: var(--primary-dark);
    padding: 14px 40px;
    border-radius: 50px;
    font-weight: 600;
    font-size: 1rem;
    letter-spacing: 1px;
    transition: var(--transition);
    opacity: 0;
    transform: translateY(30px);
    animation: fadeInUp 0.8s ease forwards 0.9s;
}

.btn-hero:hover {
    background: #fff;
    color: var(--primary-dark);
    transform: translateY(-3px);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
}

@keyframes fadeInUp {
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Swiper Hero Navigation */
.heroSwiper .swiper-button-next,
.heroSwiper .swiper-button-prev {
    color: #fff;
    background: rgba(255, 255, 255, 0.15);
    width: 50px;
    height: 50px;
    border-radius: 50%;
    backdrop-filter: blur(5px);
    transition: var(--transition);
}

.heroSwiper .swiper-button-next:hover,
.heroSwiper .swiper-button-prev:hover {
    background: var(--accent);
    color: var(--primary-dark);
}

.heroSwiper .swiper-button-next::after,
.heroSwiper .swiper-button-prev::after {
    font-size: 18px;
    font-weight: bold;
}

.heroSwiper .swiper-pagination-bullet {
    background: #fff;
    opacity: 0.5;
    width: 12px;
    height: 12px;
}

.heroSwiper .swiper-pagination-bullet-active {
    opacity: 1;
    background: var(--accent);
}

/* ===========================
   HAKKIMDA
   =========================== */
.about-image {
    position: relative;
    display: inline-block;
}

.about-image img {
    border-radius: 12px;
    box-shadow: var(--shadow);
}

.about-image-decoration {
    position: absolute;
    bottom: -15px;
    right: -15px;
    width: 100%;
    height: 100%;
    border: 3px solid var(--primary);
    border-radius: 12px;
    z-index: -1;
}

.about-content h3 {
    font-size: 2rem;
    color: var(--primary-dark);
    margin-bottom: 10px;
}

.about-tagline {
    color: var(--primary);
    font-weight: 600;
    font-size: 1.1rem;
    margin-bottom: 15px;
}

.about-content p {
    color: var(--text-gray);
    line-height: 1.8;
}

/* Sayaçlar */
.counter-box {
    text-align: center;
    padding: 20px 10px;
    border-radius: 12px;
    background: var(--bg-light);
    transition: var(--transition);
}

.counter-box:hover {
    background: var(--primary);
    color: #fff;
    transform: translateY(-5px);
    box-shadow: var(--shadow-hover);
}

.counter-box:hover p {
    color: rgba(255, 255, 255, 0.85);
}

.counter-box .counter {
    font-size: 2.2rem;
    font-weight: 700;
    font-family: var(--font-heading);
    color: var(--primary);
    transition: var(--transition);
}

.counter-box:hover .counter,
.counter-box:hover span {
    color: #fff;
}

.counter-box p {
    font-size: 0.85rem;
    color: var(--text-gray);
    margin-top: 5px;
    margin-bottom: 0;
    transition: var(--transition);
}

/* ===========================
   YETENEKLER
   =========================== */
.bg-light {
    background-color: var(--bg-light) !important;
}

.skill-category {
    background: #fff;
    padding: 30px;
    border-radius: 12px;
    box-shadow: var(--shadow);
    height: 100%;
    transition: var(--transition);
}

.skill-category:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-hover);
}

.skill-category h4 {
    color: var(--primary-dark);
    margin-bottom: 20px;
    font-size: 1.3rem;
}

.skill-category h4 i {
    color: var(--primary);
    margin-right: 8px;
}

.skill-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
}

.skill-badge {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    background: linear-gradient(135deg, var(--bg-light), #e8f5e9);
    color: var(--text-dark);
    padding: 8px 16px;
    border-radius: 50px;
    font-size: 0.88rem;
    font-weight: 500;
    transition: var(--transition);
    border: 1px solid #e0e0e0;
}

.skill-badge:hover {
    background: var(--primary);
    color: #fff;
    border-color: var(--primary);
    transform: translateY(-2px);
}

.skill-badge i {
    color: var(--primary);
    font-size: 0.8rem;
}

.skill-badge:hover i {
    color: #fff;
}

/* ===========================
   PROJELER
   =========================== */
.filter-buttons {
    margin-bottom: 20px;
}

.btn-filter {
    background: transparent;
    border: 2px solid var(--primary);
    color: var(--primary);
    padding: 8px 24px;
    border-radius: 50px;
    font-weight: 600;
    font-size: 0.9rem;
    margin: 5px;
    transition: var(--transition);
    cursor: pointer;
}

.btn-filter:hover,
.btn-filter.active {
    background: var(--primary);
    color: #fff;
}

.project-card {
    display: block;
    background: #fff;
    border-radius: 12px;
    overflow: hidden;
    box-shadow: var(--shadow);
    transition: var(--transition);
}

.project-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-hover);
}

.project-image {
    position: relative;
    overflow: hidden;
    height: 250px;
}

.project-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s ease;
}

.project-card:hover .project-image img {
    transform: scale(1.1);
}

.project-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(27, 94, 32, 0.7);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: var(--transition);
}

.project-card:hover .project-overlay {
    opacity: 1;
}

.project-overlay i {
    color: #fff;
    font-size: 2rem;
    transform: translateX(-20px);
    transition: transform 0.3s ease;
}

.project-card:hover .project-overlay i {
    transform: translateX(0);
}

.project-info {
    padding: 20px;
}

.project-category {
    display: inline-block;
    background: #e8f5e9;
    color: var(--primary);
    padding: 4px 12px;
    border-radius: 50px;
    font-size: 0.8rem;
    font-weight: 600;
    margin-bottom: 10px;
}

.project-info h5 {
    font-size: 1.15rem;
    color: var(--text-dark);
    margin-bottom: 8px;
}

.project-info p {
    color: var(--text-gray);
    font-size: 0.9rem;
    margin-bottom: 0;
}

/* Project item hide/show for filtering */
.project-item {
    transition: opacity 0.4s ease, transform 0.4s ease;
}

.project-item.hidden {
    opacity: 0;
    transform: scale(0.8);
    position: absolute;
    pointer-events: none;
}

/* ===========================
   DENEYİM & EĞİTİM
   =========================== */
.experience-card {
    background: #fff;
    padding: 30px;
    border-radius: 12px;
    box-shadow: var(--shadow);
    height: 100%;
    border-left: 4px solid var(--primary);
    transition: var(--transition);
}

.experience-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-hover);
    border-left-color: var(--accent);
}

.exp-date {
    display: inline-block;
    background: #e8f5e9;
    color: var(--primary);
    padding: 4px 14px;
    border-radius: 50px;
    font-size: 0.85rem;
    font-weight: 600;
    margin-bottom: 12px;
}

.experience-card h4 {
    font-size: 1.2rem;
    color: var(--text-dark);
    margin-bottom: 5px;
}

.experience-card h5 {
    font-size: 1rem;
    color: var(--primary);
    font-family: var(--font-body);
    font-weight: 500;
    margin-bottom: 12px;
}

.experience-card p {
    color: var(--text-gray);
    font-size: 0.95rem;
    margin-bottom: 0;
}

/* ===========================
   BLOG
   =========================== */
.blog-card {
    background: #fff;
    border-radius: 12px;
    overflow: hidden;
    box-shadow: var(--shadow);
    transition: var(--transition);
    height: 100%;
}

.blog-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-hover);
}

.blog-image {
    position: relative;
    overflow: hidden;
    height: 220px;
}

.blog-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s ease;
}

.blog-card:hover .blog-image img {
    transform: scale(1.05);
}

.blog-date {
    position: absolute;
    bottom: 15px;
    left: 15px;
    background: var(--primary);
    color: #fff;
    padding: 5px 15px;
    border-radius: 50px;
    font-size: 0.8rem;
    font-weight: 600;
}

.blog-content {
    padding: 20px;
}

.blog-content h5 {
    font-size: 1.1rem;
    color: var(--text-dark);
    margin-bottom: 10px;
    line-height: 1.4;
}

.blog-content p {
    color: var(--text-gray);
    font-size: 0.9rem;
    margin-bottom: 15px;
}

.btn-read-more {
    color: var(--primary);
    font-weight: 600;
    font-size: 0.9rem;
    transition: var(--transition);
}

.btn-read-more:hover {
    color: var(--primary-dark);
    letter-spacing: 1px;
}

.btn-read-more i {
    margin-left: 5px;
    transition: transform 0.3s ease;
}

.btn-read-more:hover i {
    transform: translateX(5px);
}

/* ===========================
   REFERANSLAR
   =========================== */
.testimonial-card {
    background: #fff;
    padding: 35px 30px;
    border-radius: 12px;
    box-shadow: var(--shadow);
    text-align: center;
    margin: 10px;
    transition: var(--transition);
}

.testimonial-card:hover {
    box-shadow: var(--shadow-hover);
}

.testimonial-stars {
    margin-bottom: 15px;
}

.testimonial-stars i {
    color: #FFC107;
    font-size: 1rem;
    margin: 0 2px;
}

.testimonial-text {
    font-style: italic;
    color: var(--text-gray);
    font-size: 1rem;
    line-height: 1.8;
    margin-bottom: 20px;
}

.testimonial-author {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 15px;
}

.testimonial-author img {
    width: 55px;
    height: 55px;
    border-radius: 50%;
    object-fit: cover;
    border: 3px solid var(--accent);
}

.testimonial-author h6 {
    font-size: 1rem;
    margin-bottom: 2px;
    color: var(--text-dark);
}

.testimonial-author span {
    font-size: 0.85rem;
    color: var(--text-light);
}

.testimonial-pagination .swiper-pagination-bullet {
    background: var(--primary);
}

.testimonial-pagination .swiper-pagination-bullet-active {
    background: var(--primary-dark);
}

/* ===========================
   İLETİŞİM
   =========================== */
.bg-dark-green {
    background: linear-gradient(135deg, var(--primary-dark) 0%, var(--primary) 100%);
}

.contact-info-card {
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.15);
    padding: 35px 25px;
    border-radius: 12px;
    color: #fff;
    transition: var(--transition);
}

.contact-info-card:hover {
    background: rgba(255, 255, 255, 0.2);
    transform: translateY(-5px);
}

.contact-info-card i {
    font-size: 2.5rem;
    color: var(--accent);
    margin-bottom: 15px;
}

.contact-info-card h5 {
    font-size: 1.1rem;
    margin-bottom: 8px;
}

.contact-info-card p {
    margin-bottom: 0;
    opacity: 0.9;
}

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

.social-links a {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 50px;
    height: 50px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.15);
    color: #fff;
    font-size: 1.3rem;
    transition: var(--transition);
}

.social-links a:hover {
    background: var(--accent);
    color: var(--primary-dark);
    transform: translateY(-3px);
}

/* ===========================
   FOOTER
   =========================== */
#footer {
    background: #0d3311;
    color: rgba(255, 255, 255, 0.8);
    padding: 60px 0 30px;
}

.footer-brand h4 {
    color: #fff;
    font-size: 1.4rem;
    margin-bottom: 15px;
}

.footer-brand h4 i {
    color: var(--accent);
}

.footer-brand p {
    font-size: 0.9rem;
    line-height: 1.7;
}

#footer h5 {
    color: #fff;
    font-family: var(--font-body);
    font-size: 1.1rem;
    font-weight: 600;
    margin-bottom: 20px;
}

.footer-links {
    list-style: none;
    padding: 0;
}

.footer-links li {
    margin-bottom: 10px;
}

.footer-links a {
    color: rgba(255, 255, 255, 0.7);
    font-size: 0.9rem;
    transition: var(--transition);
}

.footer-links a:hover {
    color: var(--accent);
    padding-left: 8px;
}

.footer-social a {
    background: rgba(255, 255, 255, 0.1);
}

#footer hr {
    border-color: rgba(255, 255, 255, 0.15);
    margin: 30px 0 20px;
}

/* ===========================
   BACK TO TOP
   =========================== */
.btn-back-top {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 50px;
    height: 50px;
    background: var(--primary);
    color: #fff;
    border: none;
    border-radius: 50%;
    font-size: 1.2rem;
    cursor: pointer;
    opacity: 0;
    visibility: hidden;
    transition: var(--transition);
    z-index: 999;
    box-shadow: 0 4px 15px rgba(46, 125, 50, 0.4);
}

.btn-back-top.visible {
    opacity: 1;
    visibility: visible;
}

.btn-back-top:hover {
    background: var(--primary-dark);
    transform: translateY(-3px);
}

/* ===========================
   PARALLAX BÖLÜMLERİ
   =========================== */
.parallax-section {
    background-attachment: fixed;
    background-position: center;
    background-repeat: no-repeat;
    background-size: cover;
}

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

/* Tablet */
@media (max-width: 991px) {
    .section-padding {
        padding: 70px 0;
    }

    .section-header h2 {
        font-size: 2rem;
    }

    .hero-content h1 {
        font-size: 2.5rem;
    }

    .hero-content h2 {
        font-size: 1rem;
    }

    .about-image {
        margin-bottom: 40px;
        text-align: center;
    }

    .about-image-decoration {
        display: none;
    }

    .navbar-collapse {
        background: rgba(27, 94, 32, 0.95);
        backdrop-filter: blur(10px);
        border-radius: 10px;
        padding: 15px;
        margin-top: 10px;
    }

    .lang-switcher {
        margin-top: 10px;
        justify-content: center;
    }
}

/* Mobil */
@media (max-width: 767px) {
    .section-padding {
        padding: 60px 0;
    }

    .section-header h2 {
        font-size: 1.75rem;
    }

    .hero-content h1 {
        font-size: 2rem;
    }

    .hero-content p {
        font-size: 1rem;
    }

    .btn-hero {
        padding: 12px 30px;
        font-size: 0.9rem;
    }

    .heroSwiper .swiper-button-next,
    .heroSwiper .swiper-button-prev {
        display: none;
    }

    .counter-box .counter {
        font-size: 1.8rem;
    }

    .about-content h3 {
        font-size: 1.5rem;
    }

    .filter-buttons {
        display: flex;
        flex-wrap: wrap;
        justify-content: center;
    }

    .btn-filter {
        padding: 6px 16px;
        font-size: 0.8rem;
    }

    .testimonial-card {
        margin: 5px;
        padding: 25px 20px;
    }

    .contact-info-card {
        padding: 25px 15px;
    }

    #footer {
        text-align: center;
    }

    .footer-links a:hover {
        padding-left: 0;
    }
}

/* Küçük mobil */
@media (max-width: 575px) {
    .hero-content h1 {
        font-size: 1.6rem;
    }

    .hero-content h2 {
        font-size: 0.85rem;
        letter-spacing: 2px;
    }

    .project-image {
        height: 200px;
    }

    .blog-image {
        height: 180px;
    }
}

/* ===========================
   İLETİŞİM FORMU
   =========================== */
.contact-form-card {
    background: rgba(255, 255, 255, 0.08);
    backdrop-filter: blur(12px);
    border: 1px solid rgba(255, 255, 255, 0.18);
    padding: 40px;
    border-radius: 16px;
}

.contact-input {
    background: rgba(255, 255, 255, 0.1) !important;
    border: 1px solid rgba(255, 255, 255, 0.22) !important;
    color: #fff !important;
    border-radius: 8px !important;
    padding: 12px 16px !important;
    font-size: 0.95rem !important;
    transition: var(--transition) !important;
}

.contact-input::placeholder {
    color: rgba(255, 255, 255, 0.5) !important;
}

.contact-input:focus {
    background: rgba(255, 255, 255, 0.16) !important;
    border-color: var(--accent) !important;
    box-shadow: 0 0 0 3px rgba(129, 199, 132, 0.2) !important;
    color: #fff !important;
    outline: none !important;
}

.contact-input.is-invalid {
    border-color: #ff6b6b !important;
    background: rgba(255, 107, 107, 0.08) !important;
}

.contact-input.is-valid {
    border-color: var(--accent) !important;
    background: rgba(129, 199, 132, 0.08) !important;
}

.btn-contact-submit {
    background: var(--accent);
    color: var(--primary-dark);
    border: none;
    padding: 14px 50px;
    border-radius: 50px;
    font-weight: 700;
    font-size: 1rem;
    transition: var(--transition);
    letter-spacing: 0.5px;
}

.btn-contact-submit:hover {
    background: #fff;
    color: var(--primary-dark);
    transform: translateY(-3px);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
}

.btn-contact-submit:disabled {
    opacity: 0.7;
    cursor: not-allowed;
    transform: none !important;
}

.form-success-msg {
    background: rgba(129, 199, 132, 0.18);
    border: 1px solid rgba(129, 199, 132, 0.45);
    color: #fff;
    padding: 16px 22px;
    border-radius: 10px;
    font-weight: 500;
    text-align: center;
    font-size: 0.95rem;
}

/* Typed.js Cursor */
.typed-cursor {
    color: var(--primary);
    font-weight: 300;
}

/* ===========================
   WHATSAPP BUTONU
   =========================== */
.btn-whatsapp {
    position: fixed;
    bottom: 92px;
    right: 30px;
    width: 52px;
    height: 52px;
    background: #25D366;
    color: #fff;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.6rem;
    z-index: 998;
    box-shadow: 0 4px 20px rgba(37, 211, 102, 0.45);
    transition: var(--transition);
    text-decoration: none;
}

.btn-whatsapp:hover {
    background: #128C7E;
    color: #fff;
    transform: scale(1.1) translateY(-2px);
    box-shadow: 0 8px 28px rgba(37, 211, 102, 0.5);
}

.whatsapp-tooltip {
    position: absolute;
    right: 62px;
    background: #25D366;
    color: #fff;
    padding: 7px 14px;
    border-radius: 8px;
    font-size: 0.82rem;
    font-weight: 600;
    white-space: nowrap;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.3s ease;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.15);
}

.whatsapp-tooltip::after {
    content: '';
    position: absolute;
    top: 50%;
    right: -6px;
    transform: translateY(-50%);
    border: 6px solid transparent;
    border-left-color: #25D366;
    border-right: 0;
}

.btn-whatsapp:hover .whatsapp-tooltip {
    opacity: 1;
}

@media (max-width: 575px) {
    .btn-whatsapp {
        width: 46px;
        height: 46px;
        font-size: 1.35rem;
        bottom: 88px;
        right: 20px;
    }
    .whatsapp-tooltip { display: none; }
    .btn-back-top { right: 20px; }
    .contact-form-card { padding: 25px 18px; }
}